WO2018001284A1 - 砂光机及其操作方法和工作底板的拆装方法 - Google Patents

砂光机及其操作方法和工作底板的拆装方法 Download PDF

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Publication number
WO2018001284A1
WO2018001284A1 PCT/CN2017/090664 CN2017090664W WO2018001284A1 WO 2018001284 A1 WO2018001284 A1 WO 2018001284A1 CN 2017090664 W CN2017090664 W CN 2017090664W WO 2018001284 A1 WO2018001284 A1 WO 2018001284A1
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WO
WIPO (PCT)
Prior art keywords
bottom plate
interlocking
switch
state
operating member
Prior art date
Application number
PCT/CN2017/090664
Other languages
English (en)
French (fr)
Inventor
钟红风
孙益民
张士松
Original Assignee
苏州宝时得电动工具有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201621046952.8U external-priority patent/CN206140262U/zh
Application filed by 苏州宝时得电动工具有限公司 filed Critical 苏州宝时得电动工具有限公司
Priority to EP17819281.1A priority Critical patent/EP3476537A4/en
Publication of WO2018001284A1 publication Critical patent/WO2018001284A1/zh
Priority to US16/221,847 priority patent/US11529711B2/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
    • B24B23/022—Spindle-locking devices, e.g. for mounting or removing the tool
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/02—Construction of casings, bodies or handles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16P—SAFETY DEVICES IN GENERAL; SAFETY DEVICES FOR PRESSES
    • F16P3/00—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for

Definitions

  • the invention relates to a hand-held electric grinding tool, in particular to a sanding machine, and to a method for disassembling and installing a working floor of a sanding machine and a method for operating the sanding machine.
  • the existing sanding machine includes a round sand machine and a flat sand machine, wherein the output shaft of the round sand machine drives the grinding bottom plate to perform circular sand movement, that is, a regular orbital motion of revolution and rotation for grinding a relatively large amount of material.
  • the rotary motion of the sanding plate of the flat sand is limited. Therefore, the sanding of the bottom plate is used for the movement of the sand, that is, it can only be used for the orbital motion of the revolutionary rule, and is suitable for grinding a small amount of material, for example, for fine processing or finishing. If the user wants to have both rough grinding and fine grinding, it is necessary to prepare two tools (or bottom plate) in the work. In the work, the tool (or the bottom plate) needs to be replaced to complete the corresponding working conditions, which makes the sanding work seem cumbersome. And complicated.
  • a sander that replaces a work floor which utilizes fasteners, connects the work floor to the sander body and locks them together, as disclosed in US Patent Publication No. 6,132,300.
  • the fasteners need to be loosened until the working bottom plate can be detached or separated from the main body, and then replaced with a new working bottom plate and the main body, and then the working bottom plate and the main body are fastened by fasteners. Connect and fasten together.
  • the third component other than the working bottom plate and the sander main body is introduced during the operation of the replaceable working bottom plate, and the component needs to be completely separated from the sander main body during the operation, so that it is easy It is lost, and during the installation of the working plate, it needs to be tightened again until it is fastened, and the installation process is very cumbersome and inefficient.
  • the present invention provides a safety sander.
  • a sander includes: a body including a casing, a motor disposed in the casing, a switch mechanism for controlling the motor, and a motor driven a rotating drive assembly; and a work floor mated with the drive assembly; the body further comprising an interlocking mechanism, the interlock mechanism including an operating member movably disposed relative to the housing, the operating member being operatively at the first Transitioning between a state in which the interlock mechanism allows the switch to be triggered, and a second state to prevent the switch from being triggered when the switch is in a triggered state A state transitions to a second state; the interlock mechanism prevents the switch from being triggered when the operating member is in the second state.
  • the switch cannot be activated when the working bottom plate is not installed, and the working bottom plate cannot be disassembled when the switch is started, so that the sanding machine is in use, including the working floor installation process. Security.
  • the switch mechanism includes a triggering member and a switch, the interlocking mechanism including a first interlocking member selectively detachable or disengageable from the operating member; when the operating member is in the first state, the first The interlocking member is mated with the operating member, the first interlocking member allowing the triggering member to trigger the switch, and when the switch is in a triggered state, the operating member is prevented from being separated from the first interlocking member; The first interlocking member is separated from the operating member when the operating member is in the second state, the first interlocking member preventing the triggering member from triggering the switch.
  • the interlocking mechanism including a first interlocking member selectively detachable or disengageable from the operating member; when the operating member is in the first state, the first The interlocking member is mated with the operating member, the first interlocking member allowing the triggering member to trigger the switch, and when the switch is in a triggered state, the operating member is prevented from being separated from the first interlocking member;
  • the interlocking mechanism further includes an abutting member capable of abutting or separating from the first interlocking member, and the abutting member is separated from the first interlocking member when the operating member is in the first state, When the operating member is in the second state, the abutting member abuts the first interlocking member, thereby preventing the triggering member from triggering the switch.
  • an abutting member capable of abutting or separating from the first interlocking member, and the abutting member is separated from the first interlocking member when the operating member is in the first state, When the operating member is in the second state, the abutting member abuts the first interlocking member, thereby preventing the triggering member from triggering the switch.
  • the abutting member is integrally provided with the trigger member.
  • the operating member is flipped relative to the housing.
  • the operating member is provided as a cam wrench
  • the cam wrench includes a handle portion and a cam portion, the cam portion being coupled to the housing, the handle portion including a free end.
  • the housing includes a head casing portion for accommodating the motor, and a grip portion for arranging the handle, the operating member is disposed at the head shell portion, and the trigger member is disposed at the grip portion.
  • the trigger member is held along The extending direction of the portion is slidably disposed, the first interlocking member allows the triggering member to slide when the first interlocking member is mated with the operating member; and when the first interlocking member is separated from the operating member The first interlocking member prevents the trigger member from sliding.
  • the first interlocking member is pivotally disposed relative to the housing, the interlocking mechanism further comprising an elastic member abutting the first interlocking member, when the operating member is interlocked with the first
  • the first interlocking member is pivoted from the initial position to the working position against the biasing force of the elastic member; when the operating member is separated from the first interlocking member, the first interlocking member is elasticized The biasing action of the piece is restored from the working position to the initial position.
  • the first interlocking member includes a first end capable of abutting against the abutting member, and a second end engageable with the operating member; when the first end abuts the abutting member, The first interlocking member prevents the trigger member from moving in the first direction; when the second end is engaged with the operating member, the first interlocking member allows the trigger member to move in the first direction to trigger the switch, and when the switch The first interlocking member prevents the operating member from pivoting when in the triggered state.
  • the second end is provided with an abutting portion, and the corresponding abutting portion of the operating member is provided with a card slot, and the abutting portion extends into the card slot when the second end is engaged with the operating member.
  • the working bottom plate comprises at least two non-shaped bottom plates, which are optionally separated or mated with the drive assembly.
  • a sander comprising: a body, the body comprising a housing, a motor disposed in the housing, a switch mechanism for controlling the motor, and a drive driven by the motor An assembly having a motor axis; and a work floor, the work floor being selectable to be separate or mated with the drive assembly; the sander further comprising an interlock mechanism, the interlock mechanism including an opposing housing activity An operating member, the operating member being operatively switchable between a first state and a second state, the interlocking mechanism allowing the switch to be triggered when the operating member is in the first state, and When the switch is in a triggered state, the working bottom plate is prevented from being separated or mated with the fuselage; when the operating member is in the second state, the interlocking mechanism allows the working bottom plate to be separated or mated from the fuselage, And the switch is prevented from being triggered.
  • the switch mechanism includes a triggering member and a switch, the interlocking mechanism including a first interlocking member selectively detachable or disengageable from the operating member; when the operating member is in the first state, the first The interlocking member is mated with the operating member, the first interlocking member allowing the triggering member to move to trigger the switch, And when the switch is in a triggered state, the operating member is prevented from being separated from the first interlocking member; when the operating member is in the second state, the first interlocking member is separated from the operating member, the first An interlocking member prevents the trigger member from moving.
  • the interlocking mechanism including a first interlocking member selectively detachable or disengageable from the operating member; when the operating member is in the first state, the first The interlocking member is mated with the operating member, the first interlocking member allowing the triggering member to move to trigger the switch, And when the switch is in a triggered state, the operating member is prevented from being separated from the first interlocking
  • the interlocking mechanism further includes an abutting member capable of abutting or separating from the first interlocking member, and the abutting member is separated from the first interlocking member when the operating member is in the first state, When the operating member is in the second state, the abutting member abuts the first interlocking member, thereby preventing the triggering member from triggering the switch.
  • an abutting member capable of abutting or separating from the first interlocking member, and the abutting member is separated from the first interlocking member when the operating member is in the first state, When the operating member is in the second state, the abutting member abuts the first interlocking member, thereby preventing the triggering member from triggering the switch.
  • the abutting member is integrally provided with the trigger member.
  • the first interlocking member is pivotally movable between an initial position separated from the operating member and a working position mated with the operating member.
  • the pivot axis of the first interlocking member is perpendicular to the first interlocking member.
  • the first interlocking member includes a first end adjacent to the triggering member, and a second end adjacent to the operating member, the first end abutting the triggering member when the first interlocking member is in the initial position Blocking the trigger member movement; when the first interlocking member is in the working position, the first end is disengaged from the triggering member to allow the triggering member to move to trigger the switch, and the second end is engaged with the operating member .
  • the trigger member moves to the position of the trigger switch, the trigger member abuts the first end to prevent the first interlock member from moving.
  • the interlocking mechanism further includes a second interlocking member disposed between the triggering member and the working bottom plate, the second interlocking member being capable of being in a first position near the trigger member and a second position away from the triggering member Moving between; when the working bottom plate is mated with the body, the second interlocking member is in the second position, the second interlocking member allows the triggering member to move; when the working bottom plate is separated from the body, the The second interlocking member is in the first position to prevent movement of the trigger member.
  • a second interlocking member disposed between the triggering member and the working bottom plate, the second interlocking member being capable of being in a first position near the trigger member and a second position away from the triggering member Moving between; when the working bottom plate is mated with the body, the second interlocking member is in the second position, the second interlocking member allows the triggering member to move; when the working bottom plate is separated from the body, the The second interlocking member is in the first position to prevent movement of the trigger member
  • the second interlocking member moves linearly between the first position and the second position.
  • the second interlocking member moves in a line parallel to the motor axis.
  • the second interlocking member is disposed parallel to the motor axis.
  • the housing includes a head case portion accommodating the motor, and a grip portion on which the handle is disposed, the operation member is disposed on the head case portion, and the trigger member is disposed on the grip portion.
  • the trigger member is slidably disposed along an extending axis of the grip portion.
  • the operating member is pivotally disposed relative to the housing when the first state and the second state are switched.
  • the pivot axis of the operating member is perpendicular to the operating member.
  • the operating member is provided as a cam wrench
  • the cam wrench includes a handle portion and a cam The cam portion is pivotally coupled to the housing.
  • the fuselage includes a drive assembly that is driven to rotate by a motor, the drive assembly including a tensioning ring for mating with a work floor, the operating member driving the tensioning ring for linear motion.
  • the fuselage further includes a transmission connecting the operating member and the tensioning ring, the operating member driving the tensioning ring to perform a linear motion parallel to the direction of the motor axis.
  • the drive assembly further includes a support plate for supporting the tension ring, and an elastic member disposed between the tension ring and the support plate, the elastic member providing the tension ring to the high position The partial pressure of exercise.
  • the tensioning ring when the operating member is mated with the first interlocking member, the tensioning ring is in a position close to a high position of the motor; when the operating member is separated from the first interlocking member, the tensioning ring is far away The lower position of the motor such that the working floor is operatively mated or detached from the tensioning ring.
  • the tensioning ring is provided with a first connecting member
  • the working bottom plate is provided with a second connecting member for engaging with the first connecting member, when the working bottom plate and the tensioning device are The ring mating, the first mating member and the second mating member at least partially overlapping in the motor shaft axis direction.
  • the tensioning ring is moved from a low position to a high position, thereby enabling A working bottom plate to which the tension ring is mated is locked to the body.
  • Another object of the present invention is to provide a convenient and quick installation method for a sanding machine working floor.
  • a working method for installing a working bottom plate of a sanding machine comprising the following steps: providing a sander body, the body comprising a casing, disposed in the a motor, an interlocking mechanism in the housing, the motor having a motor axis, the interlocking mechanism including an operating member switchable between the first state and the second state, when the operating member is in the first state, The interlocking mechanism allows the switch to be triggered, the interlocking mechanism prevents the switch from being triggered when the operating member is in the second state; providing a working floor that can be coupled to the body Aligning; operating the operating member to be in the second state; moving the working bottom plate in the motor axis direction to be mated with the body; operating the operating member to be in the second state.
  • the operating member is operated to pivot the operating member.
  • the technical solution adopted by the present invention to solve the technical problem thereof is: a method for disassembling a working bottom plate of a sanding machine, comprising the following steps: providing a sanding machine, the sanding machine comprising a fuselage and connecting with the body Working body, the body includes a housing, a motor disposed in the housing, an interlocking mechanism, the motor has a motor axis, and the interlocking mechanism includes a switchable between a first state and a second state An operating member that allows the switch to be triggered when the operating member is in the first state, the interlocking mechanism preventing the switch from being triggered when the operating member is in the second state; Operating the operating member to be in a second state; moving the working floor in a motor axis direction to be separated from the body.
  • the operating member is operated to pivot the operating member.
  • the invention also provides a sanding machine that is convenient to use.
  • a sanding machine comprising: a main body portion; and a working bottom plate connected to the main body portion, the main body portion including a casing, a motor housed in the casing, and a motor-driven drive assembly, the motor being provided with a motor shaft rotatable about an eccentric axis and a motor shaft axis or about an eccentric axis and an output shaft axis that is at an angle to the motor shaft axis, the work floor being detachable
  • the ground assembly is coupled to the driving component, the driving component includes a first clamping component, and the working bottom plate includes a second fastening component disposed corresponding to the first fastening component, the first fastening component and the second clamping component
  • the pieces are axially engaged with each other along the output shaft, thereby preventing the working bottom plate from being separated from the driving assembly, and the first engaging member and the second engaging member are disengaged from each other in the output axial direction, thereby allowing the working
  • the first clip comprises a plurality of first snap portions circumferentially disposed about the eccentric axis.
  • the driving assembly further includes an output head body, wherein the first engaging member is movable between the first position and the second position relative to the output head body, and in the first position, the first engaging member is engageable with the second engaging member The component is snapped, and in the second position, the first latching member allows the second latching member to be disengaged therefrom.
  • the first clip moves axially along the output shaft.
  • the first clip is pivotally moved relative to the output head body.
  • the first clip moves radially along the output shaft.
  • an elastic element is disposed between the first clip and the output head body, and the elastic element drives the first clip to move from the second position to the first position.
  • the first clip is an elastic member, and the elastic member automatically returns to the first position from the second position.
  • the working bottom plate comprises a bottom plate main body, and the second engaging member is movable relative to the bottom plate main body so as to be able to be engaged and disengaged from the first engaging member.
  • the second clip is movable radially along the motor shaft.
  • the second clip is an elastic member.
  • the sander further includes a release assembly that is switchable between the disassembly mode and the operational mode to allow the work floor to be detached from the body portion and to prevent the work floor from separating from the body portion.
  • the release assembly is in the disassembly mode, the first clip and the second clip can be disengaged from each other, and the release assembly is in an operation mode, and the first clip and the second clip can be engaged with each other.
  • the release assembly includes a control member and a transmission member driven by the control member, the control member operative to control movement of the first or second clip member.
  • the control member is at least partially disposed on an outer side of the casing.
  • the release assembly includes an operating portion and a positioning member disposed on the working bottom plate, the operating portion operatively controlling the positioning member to move between a locked position and a released position, the positioning member being in the locked position
  • the first latching member and the second latching member can be engaged with each other, and the positioning component is in the releasing position, and the first latching component and the second latching component can be disengaged from each other.
  • the working bottom plate and the driving assembly are matched in a radial direction without a gap along the motor shaft.
  • the working bottom plate is provided with a first tapered surface
  • the driving component is provided with a second tapered surface.
  • the first tapered surface is engaged with the second tapered surface.
  • the first tapered surface is an inner circumferential surface
  • the second tapered surface is an outer conical surface.
  • the sander includes a locking member that is selectively engageable or disengageable with the drive assembly, the drive assembly being stationary relative to the housing when the drive assembly is mated with the locking member, and driving when the drive assembly is separated from the locking member
  • the assembly is capable of rotating relative to the housing.
  • the locking member is disposed in the casing, and the sanding machine is provided with a switch trigger for controlling the starting of the motor, and the locking member is disposed in linkage with the switch trigger.
  • the working bottom plate comprises a first bottom plate and a second bottom plate.
  • the first bottom plate is a round sand bottom plate
  • the second bottom plate is a plate sand bottom plate.
  • the sander further includes a swinging foot fixedly disposed opposite to the casing, and at least one of the first bottom plate and the second bottom plate is provided with a connecting portion that is coupled to the swinging foot.
  • a sanding machine comprising a main body portion and a working bottom plate detachably connected to the main body portion, the main body portion including a casing and being housed in the machine a motor of the housing, and a drive assembly driven by the motor, the motor having a motor shaft rotatable about an eccentric axis and a motor shaft axis or about an eccentric axis and an output shaft axis that is at an angle to the motor shaft axis,
  • the working bottom plate is detachably coupled or detached from the driving assembly
  • the driving assembly includes a first engaging member
  • the working bottom plate includes a second engaging member disposed corresponding to the first engaging member, the working bottom plate
  • the first engaging member and the second engaging member are axially engaged with each other along the output shaft.
  • the drive assembly and the working bottom plate have a radial fit without a gap along the output shaft.
  • the working bottom plate is provided with a first tapered surface
  • the driving component is provided with a second tapered surface.
  • the first tapered surface is engaged with the second tapered surface.
  • the first tapered surface is an inner circumferential surface
  • the second tapered surface is an outer conical surface.
  • the driving assembly further includes an output head body, wherein the first engaging member is movable between the first position and the second position relative to the output head body, and in the first position, the first engaging member is engageable with the second engaging member The component is snapped, and in the second position, the first latching member allows the second latching member to be disengaged therefrom.
  • the working bottom plate comprises a bottom plate main body, and the second engaging member is movable relative to the bottom plate main body so as to be able to be engaged and disengaged from the first engaging member.
  • Another object of the present invention is to provide a quick mounting method for a working floor of a sander.
  • a working method for installing a working bottom plate of a sanding machine comprising the following steps: providing a sander main body having a casing, a motor and a driving component, the motor a motor shaft is provided, the drive assembly being driven by a motor to be rotatable about an eccentric axis and a motor shaft axis or an output shaft axis that is at an angle to the motor shaft axis, the drive assembly including a first snap member, the work plate including a second engaging member disposed corresponding to the first engaging member; providing a working bottom plate detachably coupled to the driving assembly; axially moving the working bottom plate relative to the driving assembly along the output shaft to be mated with the driving assembly.
  • the driving component further includes an output head body, and the first card connector is capable of being opposite to the output head The body moves between the first position and the second position, the mounting method further comprising the step of moving the first clip from the first position to the second position before the working bottom plate moves axially relative to the drive assembly along the output shaft After the working bottom plate is axially moved relative to the driving assembly along the output shaft to be mated with the driving assembly, moving the first engaging member from the second position to the first position to axially the first engaging member and the second engaging member Card access.
  • the movement of the first clip from the first position to the second position is driven and controlled by a control member at least partially disposed outside the casing.
  • An alternative technical solution is to move the working bottom plate relative to the driving assembly along the axial direction of the motor shaft, so that the first engaging member and the second engaging member are axially engaged, and the working bottom plate is mated with the main body portion.
  • Another alternative technical solution is to axially move the working bottom plate relative to the driving assembly along the output shaft to match the working bottom plate with the driving assembly; and rotate the working bottom plate relative to the driving assembly to lock the axial positions of the two.
  • a working method for removing a working bottom plate of a sanding machine comprising the following steps: providing a sanding machine, the sanding machine comprising a casing, a motor and a driving component a sander body portion, and a working floor mated with the drive assembly, the motor being provided with a motor shaft driven by the motor to be rotatable about the eccentric axis and at an angle to the motor shaft axis or to the motor shaft axis
  • Rotating the output shaft axis the driving assembly includes a first engaging member
  • the working bottom plate includes a second engaging member disposed corresponding to the first engaging member; and axially moving the working bottom plate relative to the driving assembly along the output shaft to Separated from the drive assembly.
  • the driving assembly further includes an output head body, wherein the first engaging member is movable relative to the output head body between the first position and the second position, and the disassembling method further comprises the following steps: the working bottom plate is opposite to the driving assembly Moving the first clip from the first position to the second position causes the first clip to be axially disengaged from the second clip before moving axially along the output shaft to separate from the drive assembly. The movement of the first clip from the first position to the second position is driven and controlled by a control member at least partially disposed outside the casing.
  • An alternative technical solution is to rotate the working floor around the centerline of the working floor; the working floor is axially separated from the drive assembly along the output shaft.
  • the method before rotating the working floor, the method further comprises the step of releasing the positional locking of the working floor by the operating portion provided on the working floor.
  • the first engaging member of the working bottom plate and the second engaging member of the sander driving assembly can realize the locking and disengaging in the axial direction of the output shaft, thereby making the working bottom plate convenient. It is quickly realized to be detached from the main body of the sander, or to be installed with another, or a different function, and the operation steps are simple.
  • the working bottom plate is mated with the driving component, the first tapered surface of the working bottom plate is matched with the second tapered surface provided on the driving component, so that the working bottom plate can be well removed under the action of the axial lifting force.
  • the axial and radial gaps between the bottom plate and the drive assembly are such that the two are substantially coaxial and have good synchronism when rotated, reducing the loss of synchronization between the two due to the gap, resulting in additional energy loss, and the work efficiency is significantly improved.
  • the present invention also provides an easy-to-use sander, and another alternative technical solution is: a sander comprising a main body portion and a working bottom plate connected to the main body portion, the main body portion including the machine a housing, a motor housed in the casing, a driving assembly driven by the motor to rotate about the eccentric axis, and a swinging leg fixedly disposed opposite to the casing, the working plate being detachably coupled to the driving assembly, the driving assembly including the first a second connecting member disposed corresponding to the first engaging member
  • the output shafts are axially coupled to each other.
  • the drive assembly and the working bottom plate have a radial fit without a gap along the output shaft.
  • the working bottom plate is provided with a first tapered surface
  • the driving component is provided with a second tapered surface.
  • the first tapered surface is engaged with the second tapered surface.
  • the first tapered surface is an inner circumferential surface
  • the second tapered surface is an outer conical surface.
  • the first clip comprises a plurality of first snap portions circumferentially disposed about the eccentric axis.
  • the driving assembly further includes an output head body, wherein the first engaging member is movable between the first position and the second position relative to the output head body, and in the first position, the first engaging member is engageable with the second engaging member The piece is snapped, and in the second position, the first clip can be disengaged from the second clip.
  • the first clip moves axially along the output shaft.
  • the first clip is pivotally moved relative to the output head body.
  • the first clip moves radially along the output shaft.
  • an elastic element is disposed between the first clip and the output head body, and the elastic element The piece drives the first clip to move from the second position to the first position.
  • the first engaging member is an elastic member, and the elastic member is automatically returned to the first position by the second position.
  • the working bottom plate comprises a bottom plate main body, and the second engaging member is movable relative to the bottom plate main body so as to be able to be engaged and disengaged from the first engaging member.
  • the second clip is radially moveable along the output shaft.
  • the second clip is an elastic member.
  • the sander further includes a release assembly that is switchable between the disassembly mode and the operational mode to allow the work floor to be detached from the body portion and to prevent the work floor from separating from the body portion.
  • the release assembly is in the disassembly mode, the first clip and the second clip can be disengaged from each other, and the release assembly is in an operation mode, and the first clip and the second clip can be engaged with each other.
  • the release assembly includes a control member and a transmission member driven by the control member, the control member operative to control movement of the first or second clip member.
  • the control member is at least partially disposed on an outer side of the casing.
  • the release assembly includes an operating portion and a positioning member disposed on the working bottom plate, the operating portion operatively controlling the positioning member to move between a locked position and a released position, the positioning member being in the locked position
  • the first latching member and the second latching member can be engaged with each other, and the positioning component is in the releasing position, and the first latching component and the second latching component can be disengaged from each other.
  • the sander includes a locking member that is selectively engageable or disengageable with the drive assembly, the drive assembly being stationary relative to the housing when the drive assembly is mated with the locking member, and driving when the drive assembly is separated from the locking member
  • the assembly is capable of rotating relative to the housing.
  • the locking member is disposed in the casing, and the sanding machine is provided with a switch trigger for controlling the starting of the motor, and the locking member is disposed in linkage with the switch trigger.
  • the working bottom plate comprises a first bottom plate and a second bottom plate.
  • the first bottom plate is a round sand bottom plate
  • the second bottom plate is a plate sand bottom plate.
  • At least one of the first bottom plate and the second bottom plate is provided with a connecting portion that is mated with the swinging foot.
  • a sanding machine comprising a main body portion and a working bottom plate connected to the main body portion, the main body portion including a casing and being housed in the casing a motor, a drive assembly driven by the motor about the eccentric axis, and a pendulum fixed relative to the casing a movable foot
  • the working bottom plate is detachably coupled to the driving component
  • the driving component comprises a first clamping component
  • the working bottom plate comprises a second fastening component corresponding to the first fastening component
  • Another object of the present invention is to provide a quick mounting method for a working floor of a sander.
  • the technical solution adopted by the present invention to solve the technical problem thereof is: a working method for installing a working bottom plate of a sanding machine, comprising the following steps: providing a sanding machine main body having a casing, a motor and a driving component,
  • the motor is provided with a motor shaft that is driven by a motor to be rotatable about an eccentric axis and a motor shaft axis or an output shaft axis that is at an angle to the motor shaft axis, the drive assembly including a first snap member
  • the working bottom plate includes a second engaging member disposed corresponding to the first engaging member; a working bottom plate detachably coupled to the driving assembly; and axially moving the working bottom plate relative to the driving assembly along the output shaft to be matched with the driving assembly Pick up.
  • the driving assembly further includes an output head body, the first engaging member being movable relative to the output head body between the first position and the second position
  • the mounting method further comprising the following steps: operating the bottom plate relative to the driving assembly Moving the first clip from the first position to the second position before moving axially along the output shaft; after the working bottom plate is axially moved relative to the drive assembly to the drive assembly, the first clip is Moving the second position to the first position causes the first clip to be axially engaged with the second clip.
  • the sander includes a control member
  • the dismounting method further comprises the step of operating the control member to move the first clip member from the first position to the second position.
  • An alternative solution is to axially move the working bottom plate relative to the driving assembly along the output shaft, so that the first engaging member and the second engaging member are axially engaged, and the working bottom plate is mated with the main body portion.
  • the working base plate is axially moved relative to the drive assembly along the output shaft such that the working base plate mates with the drive assembly to rotate the work base plate relative to the drive assembly such that the axial positions thereof are relatively locked.
  • a working bottom plate dismounting method of a sanding machine comprising the following steps: providing a sanding machine, the sanding machine comprising a casing, a motor, a sander body portion of the drive assembly, and a work floor mated with the drive assembly, the motor being provided with a motor shaft, the drive assembly being capable of about an eccentric axis and a motor shaft axis or Rotating about an eccentric axis and an output shaft axis that is at an angle to a motor shaft axis, the drive assembly includes a first snap member, the work bottom plate includes a second clip member disposed corresponding to the first clip member; The opposing drive assembly is axially moved along the output shaft to be separated from the drive assembly.
  • the driving assembly further includes an output head body, wherein the first engaging member is movable relative to the output head body between the first position and the second position, and the disassembling method further comprises the following steps: the working bottom plate is opposite to the driving assembly Moving the first clip from the first position to the second position causes the first clip to be axially disengaged from the second clip before moving axially along the output shaft to separate from the drive assembly.
  • the sander includes a control member
  • the dismounting method further comprises the step of operating the control member to move the first clip from the first position to the second position.
  • the working floor is rotated about the centerline of the working floor; the working floor is axially separated from the drive assembly along the output shaft.
  • the working bottom plate is provided with an operating portion, and the disassembling method further comprises the step of operating the operating portion before the working bottom plate is rotated to release the working bottom plate from the position of the main body portion.
  • the first engaging member of the working bottom plate and the second engaging member of the sander driving assembly can realize the gapless locking and disengaging at least along the axial direction of the output shaft, thereby working
  • the bottom plate can be easily and quickly disassembled from the main body of the sander, or a working bottom plate with another function or different functions, and the operation steps are simple.
  • the working bottom plate is mated with the driving component, the first tapered surface of the working bottom plate is matched with the second tapered surface provided on the driving component, so that the working bottom plate can be well removed under the action of the axial lifting force.
  • the axial and radial gaps between the bottom plate and the drive assembly are such that the two are substantially coaxial and have good synchronism when rotated, reducing the loss of synchronization between the two due to the gap, resulting in additional energy loss, and the work efficiency is significantly improved.
  • the invention also provides a sanding machine which is easy to install and firmly connected.
  • a sanding machine comprising a driving assembly and a working bottom plate detachably coupled to the driving assembly, the driving assembly comprising a first engaging member, the working bottom plate comprising a second latching member corresponding to the first latching member, the second latching member being movable relative to the first latching member to be engaged or separated from the first latching member;
  • the orthographic projection of the first latching member and the second latching member on a plane perpendicular to a direction of relative movement of the first latching member and the second latching member at least partially overlaps to block When the drive When the assembly is in the mating state with the working bottom plate, the first clip member and the second clip member move in opposite directions to separate.
  • the first engaging member and the second engaging member are coincident with the orthographic projection on a plane perpendicular to the relative movement direction of the first engaging member and the second engaging member, so that the driving assembly and the working bottom plate can pass the first
  • a latching member is coupled to the second latching member to prevent the first latching member and the second latching member from moving away from each other in opposite directions, so that the working bottom plate can be stably mounted on the driving assembly.
  • the first clip includes a first snap surface
  • the second clip includes a second snap surface disposed in parallel with the first snap surface when the work When the bottom plate and the driving assembly are in the mating state, the first engaging surface and the second engaging surface at least partially overlap under the pressure applied by each other.
  • the first engaging member includes a first engaging body and a first engaging portion located at one end of the first engaging body and protruding from a side of the first engaging body.
  • the first engaging surface is formed on a side of the first engaging portion adjacent to the first engaging body, and from the side of the first engaging portion away from the first engaging body to the first
  • the second latching member includes a second latching body and a second latching body disposed on a side of the second latching body and protruding from a side of the second latching body
  • the second engaging surface is formed on a side of the second engaging portion adjacent to the second engaging body, and from the side of the second engaging portion away from the second engaging body to The second latching body extends obliquely.
  • the driving assembly includes a tensioning ring, and the plurality of first engaging members are disposed on the tensioning ring and circumferentially spaced along the tensioning ring, and the plurality of the second The clips are circumferentially spaced on the work floor to correspond to the first clip.
  • the driving assembly further includes an output head body sleeved on the tension ring, and the output head body is circumferentially spaced apart from the plurality of protruding members, adjacent to the protruding members. Forming a holding space, the first engaging member and the second engaging member respectively extend from the two ends of the holding space into the holding space, and are engaged with each other under the action of the holding space .
  • the holding space includes a first holding space and a second holding space, and the size of the first holding space is different from the first and second connecting members
  • the size of the second card holding space is larger than the first card holding space; when the first card portion is When the second latching portion is located in the first latching space, the first latching surface and the second latching surface are in close contact under the action of the first latching space to enable the first latching surface a latching member and the second latching member are engaged with each other; when the first latching portion and the second latching portion are both located in the second latching space, the second latching member
  • the first clips are movable to be snapped or separated from each other.
  • the protruding member includes a first segment and a second segment having a size smaller than the first segment, and the first segments of two adjacent protruding members together form the first card The space, the second segment adjacent to the protruding member forms a second holding space having a size larger than the first holding space.
  • a first guiding surface is formed between the first segment and the second segment of the protruding member, and the first guiding surface is from the second segment to the first segment And gradually extending outwardly, the second engaging portion of the second engaging member is provided with a second guiding surface engageable with the first guiding surface, and the second engaging member can pass the The two guiding surfaces slide along the first guiding surface to slide into or out of the first holding space.
  • a finite portion is further disposed between the two adjacent first engaging members, and a gap is formed between the first engaging member and the adjacent limiting portion.
  • the output shaft body is provided with a boss portion extending from the protruding member toward an end of the limiting portion, and the boss portion is limited to be located in the gap, so that the tension ring is nested in the Output on the shaft body.
  • the sander further includes an elastic member between the output head body and the tensioning ring for providing the first engaging surface to be applied to the The pressure on the second card interface.
  • a sanding machine comprising a fuselage comprising an output shaft; a drive assembly comprising an output head body and a drive mounting portion, the output head body being mated with the output shaft, the drive a mounting portion is coupled to a side of the output head body adjacent to the body; a working bottom plate selectively engageable or disengageable with the drive mounting portion; and a release assembly operative to move the drive mounting portion relative to The output head body is moved to switch the drive mounting portion between the mounted state and the disassembled state.
  • the working bottom plate can be mated with the driving mounting portion, and the working bottom plate can be installed in the driving state in the disassembled state. The part is separated and separated.
  • the above sanding machine realizes driving of the driving mounting portion relative to the output head body through the release assembly to drive
  • the mounting portion is switched between the mounted state and the disassembled state.
  • the working bottom plate In the mounted state, the working bottom plate can be mated with the driving mounting portion, and in the disassembled state, the working bottom plate can be disengaged from the driving mounting portion and separated.
  • the drive installation unit can quickly realize the state switching, which facilitates the replacement of the bottom plate and brings convenience to the operator.
  • the sander further includes a retaining mechanism capable of holding the drive mounting portion in a disassembled state.
  • the retention mechanism includes a locking member disposed on the release assembly and a retaining member disposed to the body.
  • the release assembly includes a transmission member and a control member coupled to the transmission member, the transmission member being disposed between the control member and the drive mounting portion, and at the control member The drive drives the drive mounting portion to move axially.
  • control member and the transmission member are engaged by the cam groove, and the rotation of the control member relative to the body can drive the transmission member to move axially from the first position to the second position along the output shaft axis and to remain in the second position.
  • the control member is in the first position
  • the drive mounting portion is in the mounted state
  • the control member is in the second position
  • the drive mounting portion is in the disassembled state.
  • one end of the control member is hinged to the body, and is rotated relative to the body with a hinge point of the body as a center of rotation.
  • the transmission member is sleeved on the fuselage, one end of which is rotatably connected with the control member, and the other end of which is rotatably supported by the drive mounting portion, and the transmission member is supported by a connection point thereof with the control member.
  • the control member drives the lower axial movement to drive the drive mounting portion to move axially.
  • the control member is provided with a waist hole
  • the transmission member includes a mounting post that is locked to the waist hole, and the mounting post is movable within the waist hole to enable the transmission member and the control member to be The connection is rotated while allowing the transmission member to move in the axial direction of the output shaft.
  • the release assembly further includes an operating member that mates with the control member, the operating member operatively driving the control member to move.
  • the operating member is disposed as an operating portion integrally formed with the control member, and the operating portion drives the control member to rotationally drive the transmission member for axial movement about the output shaft.
  • a transmission rod is further disposed between the operating member and the control member, and the transmission rod is axially disposed in the body.
  • the operating member includes a cam portion and a cam wrench, the cam portion is pivotally disposed on the body, the cam portion abuts at one end of the transmission rod, and the other end is connected to the control member, and the cam wrench operatively controls the cam portion
  • the drive thus drives the drive rod to move in the axial direction to drive the control member to move.
  • the drive mounting portion moves axially relative to the output head body.
  • the drive mounting portion is pivotally moved relative to the output head body.
  • the drive mounting portion moves radially relative to the output head body.
  • a hand-held sander comprising: a fuselage; a working component located under the fuselage; a motor disposed in the fuselage for driving the working component;
  • the body includes a body for housing the motor, a mounting portion for mounting a battery pack for supplying power to the motor, and a grip portion connected between the body and the mounting portion, the work
  • the assembly is located at a bottom end of the body, the mounting portion is located on a side of the body, and a side of the mounting portion away from the body has a mounting position for mounting the battery pack.
  • the working component is located at the bottom end of the body, the motor is housed in the body, the mounting part is located on one side of the body, and the holding part is connected with the body, so that the battery pack and the motor are oppositely arranged, and the holding is more convenient. And ergonomic, improving the stability of the operator using the handheld sander.
  • the working component is located at one end of an output shaft of the motor, and the mounting portion is located at one side of an output shaft of the motor.
  • the grip portion is connected to one side of the body at one end, and the other end is connected to a side of the mounting portion facing the body.
  • the battery pack is detachably coupled to the mounting portion.
  • the mounting location is a mounting slot for mounting the battery pack.
  • the mounting direction of the battery pack mounted to the mounting position is parallel to the output shaft axis direction of the motor.
  • the battery pack has a battery pack body extending in a longitudinal direction, and a longitudinal extension direction of the battery pack body is parallel to an output shaft axis direction of the motor.
  • the mounting direction of the battery pack mounted to the mounting position is set at an angle to the axial direction of the output shaft of the motor.
  • the hand-held sander is located at the body or the grip after connecting the battery pack.
  • a reinforcing portion is further disposed between the body and the mounting portion.
  • Another object of the present invention is to provide a safety sander.
  • the technical solution adopted by the present invention to solve the technical problem thereof is: a sanding machine including a fuselage;
  • the work floor may be selectively separated or mated with the body;
  • the body includes a housing, a motor disposed within the housing, and a switch for controlling the motor;
  • the sander further includes a safety device capable of controlling motor starting, the safety device allowing the motor to be activated when the working floor is mated to the body; the safety when the working floor is separated from the body The device prevents the motor from starting.
  • the safety device includes a controller for controlling rotation of the motor, and a detecting sensor for detecting whether the working bottom plate is installed, and the detecting sensor outputs a first detection signal when the working bottom plate is in an installed state;
  • the detecting sensor outputs a second detection signal when the working bottom plate is in a non-installed state, and the controller controls the motor not to operate when the detecting sensor outputs the second detecting signal.
  • the invention aims to solve the problem that the motor is abnormally started after the work bottom plate is disassembled, and provides a sanding machine capable of electronically interlocking after the work bottom plate is disassembled, preventing the abnormal start of the motor, and being safe and reliable.
  • the detecting sensor includes a detecting component on which a triggering element is mounted, and when the detecting component senses the triggering component, the detecting sensor outputs a first detecting signal; The detecting sensor outputs a second detection signal when the detecting element does not sense the triggering element.
  • the detecting component is a micro switch
  • the triggering component is a triggering lever
  • the triggering lever when the working bottom plate is in a mounted state, the triggering lever is capable of contacting the microswitch and enabling micro
  • the movable switch outputs a first detection signal; when the working bottom plate is in an unmounted state, the trigger lever is disengaged from the micro switch, and the micro switch outputs a second detection signal.
  • the detecting element is a Hall sensor
  • the triggering element is a magnetic steel
  • the Hall sensor when the Hall sensor detects the magnetic steel, the Hall sensor outputs a first detection signal;
  • the Hall sensor outputs a second detection signal when the magnetic sensor is not detected by the Hall sensor.
  • the sharpening element comprises a sanding plate, a grinding wheel, an abrasive belt or a polishing wheel.
  • the sander further includes an identification sensor electrically coupled to the controller, the identification sensor for identifying whether the sharpening element is provided with a sensing element
  • the identification sensor outputs a first identification signal when the sensing element is mounted on the working substrate, and the identification sensor outputs a second identification signal when the sensing element is not mounted on the working substrate, the controller being capable of The first identification signal and the second identification signal control the first speed and the second speed of the output motor in correspondence.
  • the first speed and the second speed are preset in the controller.
  • the sander includes a connecting post having one end extending toward the working bottom plate, and the identification sensor is disposed at an end of the connecting post adjacent to the working bottom plate.
  • the sander further includes a driving disc, an output end of the motor is coupled to the driving disc, the driving disc is coupled to the working bottom plate, and the connecting post is disposed at a swing of the sander Between the foot and the drive plate.
  • the identification sensor is a Hall sensor and the sensing element is a magnetic steel.
  • the sanding machine detects whether the working bottom plate is installed by detecting the sensor, and controls whether the motor is started.
  • the motor is controlled to be inoperable, preventing the motor from starting abnormally, and driving the exposed output end to cause safety problems.
  • the sander changes the operating speed of the motor according to whether the recognition sensor recognizes the working floor with the sensing element. After replacing different types of working bottom plates, manual adjustment is no longer needed.
  • the controller can control the motor speed to correctly adjust to the reasonable speed required for the working bottom plate, which is intelligent, convenient, safe, reliable and high in efficiency.
  • FIG. 1 is a front elevational view showing a sanding bottom plate of a sanding machine according to a first embodiment of the present invention.
  • Figure 2 is a perspective view of the sanding machine of Figure 1 with a rounded sand floor.
  • FIG. 3 is a perspective exploded view of the sanding machine of FIG. 2 with a round sand bottom plate.
  • FIG. 4 is a perspective view of the tension ring of FIG. 3.
  • FIG. 5 is a perspective view of the output head body of FIG. 3.
  • FIG. 5 is a perspective view of the output head body of FIG. 3.
  • Figure 6 is a perspective view of the round sand bottom plate of Figure 3.
  • Figure 7 is a perspective view showing the state in which the round sand bottom plate and the drive assembly of Figure 3 are ready to be connected.
  • Figure 8 is a plan view showing the state in which the round sand bottom plate and the drive assembly of Figure 7 are ready to be connected.
  • Figure 9 is a cross-sectional view taken along line A1-A1 of Figure 8.
  • 10 to 14 are cross-sectional views in the direction of A2-A2 in Fig. 8, respectively, showing the state changes when the round sand bottom plate is connected to the output head body.
  • Figure 15 is a perspective exploded view of the sander body and the sand floor of Figure 1.
  • Figure 16 is a schematic view of a sander of the second embodiment.
  • Figure 17 is a schematic view showing the structure of the release assembly of the sander shown in Figure 16.
  • Figure 18 is an exploded perspective view of the release assembly of the sander shown in Figure 17.
  • Figure 19 is a cross-sectional view of the sander of Figure 16 in a normal working condition of the working floor.
  • Figure 20 is a schematic view of the sander shown in Figure 16 in a state in which the working floor is removed.
  • Figure 21 is a cross-sectional view showing the sander shown in Figure 16 in a state in which the working floor is removed.
  • Figure 22 is a schematic view showing the structure of a release assembly in a sander according to a third embodiment.
  • Figure 23 is an exploded perspective view of the release assembly of the sander shown in Figure 22.
  • Figure 24 is a schematic view of the release assembly of Figure 22 in a working floor mounted state.
  • Figure 25 is a schematic view of the release assembly of Figure 22 in a disassembled state of the working floor.
  • Figure 26 is a schematic view showing the structure of a release assembly in a sander according to a fourth embodiment.
  • Figure 27 is an exploded perspective view of the release assembly of the sander shown in Figure 26.
  • Figure 28 is a schematic view of the sander of Figure 26 with the release assembly in a working floor mounted state.
  • Figure 29 is a schematic view of the sanding machine of Figure 26 with the release assembly in a disassembled state of the working floor.
  • Figure 30 is a front elevational cross-sectional view of the fifth sander in an operational mode according to an embodiment of the present invention.
  • Figure 31 is a front elevational cross-sectional view of the sander of Figure 30 in a disassembly mode.
  • FIG. 32 is a perspective exploded view of the drive assembly of FIG.
  • Figure 33 is a perspective view of the round sand bottom plate of Figure 30.
  • Figure 34 is a plan view showing the state in which the round sand bottom plate of Figure 30 is connected to the drive assembly.
  • 35 to 39 are cross-sectional views taken along line B-B of Fig. 34, respectively showing changes in state when the rounded sole plate is attached to the output head body.
  • FIG. 40 is a perspective exploded view of a driving device for a sander according to an embodiment of the present invention.
  • Figure 41 is a perspective view showing the round sand bottom plate of the sander of the sixth embodiment of the present invention.
  • Figure 42 is a plan view showing a state in which the drive unit of Figure 40 is connected to a round sand floor.
  • Figure 43 is a cross-sectional view taken along line C1-C1 of Figure 42.
  • Figure 44 is a cross-sectional view taken along the line D-D of Figure 43.
  • 45 to 50 are schematic cross-sectional views in the direction of C2-C2 in Fig. 42, respectively showing changes in state when the rounded sole plate is connected to the output head body.
  • Figure 51 is a front elevational cross-sectional view of a sander according to a seventh embodiment of the present invention.
  • Figure 52 is a perspective exploded view of the sander of the eighth embodiment of the present invention.
  • Figure 53 is a perspective view of the drive assembly of Figure 52 assembled.
  • Figure 54 is a perspective view showing the assembly relationship between the sander main body and the slab bottom plate of Figure 52.
  • Figure 55 is a perspective view of the round sand bottom plate of Figure 52.
  • Figure 56 is a schematic view showing the assembly process of the sander body and the sand floor of Figure 52.
  • Figure 57 is a cross-sectional view showing the D-D direction sander of Figure 56.
  • Figure 58 is a cross-sectional view showing the sander in the D-D direction of Figure 56 when it is installed in position.
  • Figure 59 is a perspective view showing the sanding plate of the sanding machine of Figure 56 installed in place.
  • Figure 60 is a front elevational cross-sectional view of a ninth sander according to an embodiment of the present invention.
  • Figure 61 is a schematic view showing the structure of a sanding machine of a tenth embodiment.
  • Figure 62 is a cross-sectional view showing the sander of Figure 61 without a working head.
  • Figure 63 is a cross-sectional view showing the working plate of the sander shown in Figure 61 in a fixed state and the trigger member is opened and closed.
  • Figure 64 is a cross-sectional view of the sander shown in Figure 61 when the working bottom plate is in the secured state and the trigger member is not open.
  • Figure 65 is a cross-sectional view showing the unlocking structure of the sander shown in Figure 61 in a locked position.
  • Figure 66 is a perspective view showing the sander after removing a part of the casing according to the eleventh embodiment of the present invention.
  • Figure 67 is an exploded perspective view of the sander of Figure 66.
  • Figure 68 is a cross-sectional view of the sander of Figure 66 in a front view, in which case the switch is not activated by the trigger.
  • Figure 69 is a cross-sectional view of the sander of Figure 66 in a front view, at which point the switch has been activated by the trigger.
  • Figure 70 is a cross-sectional view of the sander of Figure 66 in a front view, in which the working bottom plate has been removed, operated The wrench is in the open position.
  • Figure 71 is a cross-sectional view of the sander of Figure 66 in a front view, with the work floor removed and the operating wrench in the closed position.
  • Figure 72 is a schematic view showing the structure of a sander according to an embodiment of the present invention.
  • Figure 73 is a simplified variation of the sander of Figure 72, showing the state in which the working floor is not installed.
  • Figure 74 is a view showing the state in which the sanding machine of Figure 73 is mounted with a work bottom plate.
  • Figure 75 is a schematic view showing the operation of the detecting sensor of the sander of Figure 74.
  • Figure 76 is a schematic structural view of a safety interlocking mechanism of a sanding machine according to a thirteenth embodiment of the present invention.
  • Figure 77 is a circuit diagram showing the operation of the sander of Figure 76.
  • 78 is a schematic structural view of a state 1 of a safety interlocking mechanism of a sanding machine according to a fourteenth embodiment of the present invention.
  • Figure 79 is a schematic view showing the structure of the second state of the safety interlock mechanism of Figure 78.
  • Figure 80 is a schematic structural view of the state 3 of the safety interlock mechanism of Figure 78.
  • the sanding machine can be selectively connected to the working bottom plate, such as a sand bottom plate or a round sand bottom plate, so that the sanding machine can be used for the sand movement when the sanding plate is connected with the sand bottom, and the sanding machine is connected with the round sand bottom plate. It can be used for round sand movement.
  • a drive unit for connecting and driving a round sand floor or a sand floor is provided on the sander
  • the plate sand bottom plate or the round sand bottom plate may alternatively be mated or separated from the drive assembly.
  • the driving component is provided with a first clamping component
  • the sanding bottom plate and the round sanding bottom plate are respectively provided with a second clamping component corresponding to the first fastening component.
  • FIG. 1 shows a sanding machine connecting plate sand bottom plate 6 which can be used for sand movement;
  • FIG. The sander is connected to the round sand bottom sand 4, which can be used for round sand movement.
  • the sander 100 includes a casing 110, a main handle 102 connected to the casing 110 and extending laterally to one side, and an auxiliary handle 103 extending laterally from the main handle 102 to the other side.
  • the main handle 102 is provided with a switch for controlling the starting of the motor. Trigger 105.
  • the sanding machine 100 is connected to the round sand floor 4; the sander 100 includes a body 1, a release assembly 2, and a drive assembly 3.
  • the body 1 includes a motor disposed on the housing 110.
  • the motor has a vertically extending motor shaft 11, a positioning seat 13 fixed to the housing 110, a fan 14 sleeved on the motor shaft 11, and a fan 14 disposed around the fan 14.
  • the fan 14 and the motor shaft 11 are coupled by a fastener 48 to enable rotation when the motor shaft 11 rotates.
  • the fan 14 has an eccentric output end 141 for providing rotation; and the end of the fan cover 15 remote from the motor is provided with a brake. Ring 16.
  • the sander 100 further includes a side cover 17 detachably connected to the casing 110.
  • the side cover 17 is provided with a plurality of air outlets for discharging the cooling airflow generated by the fan 14 to drive the side cover 17 and the casing 110.
  • a laterally extending notch 112 (see FIG. 1 or FIG. 2) is disposed therebetween; and the swinging leg 12 is fixedly disposed on the four opposite corners of the main body portion 1 around the motor shaft 11.
  • the motor shaft 11 in this embodiment transmits the rotational motion of the motor to the output shaft of the drive assembly 3, and the drive assembly 3 can revolve around the axis of the motor shaft 11 and can rotate around the eccentric axis; therefore, the sander 110 is During operation of the circular sand motion, the drive assembly 3 rotates about the axis of the motor shaft 11 and the eccentric axis.
  • the drive assembly 3 includes an output head body 36 and a drive mounting portion.
  • the output head body 36 is coupled to the output shaft, and the drive mounting portion is coupled to a side of the output head body 36 adjacent to the body 1.
  • the release assembly 2 is operable to move the drive mounting portion relative to the output head body 36 to switch the drive mounting portion between the mounted state and the disassembled state.
  • the working bottom plate In the installed state, the working bottom plate can be mated with the driving mounting portion, and in the disassembled state, the working bottom plate can be separated from the driving mounting portion to be separated.
  • the drive mounting portion moves axially relative to the output head body 36. In other embodiments, the drive mounting portion can be pivotally moved relative to the output head body 36 or radially relative to the output shaft body 36.
  • the release assembly 2 includes a transmission member and a control member that mates with the transmission member.
  • the transmission member is disposed between the control member and the driving installation portion, and can drive the driving installation portion to move axially under the driving of the control member.
  • the release assembly 2 includes a wear-reducing sheet 21, and a plurality of guide members 28 fixedly disposed to the main body portion 1.
  • the control member is an unlocking ring 22, located below the friction reducing plate 21, and the transmission member is a cam member 23 disposed movably with respect to the unlocking ring 22.
  • the guiding member 28 is respectively provided with a guiding post 25, and the guiding post 25 is sleeved with a spring 24
  • the free end of the guide post 25 is movably coupled to the mating portion 23a of the cam member 23 such that the mating portion 23a can be displaced relative to the guide post 25 in the direction in which the guide post extends against the force of the spring 24.
  • the unlocking ring 22 is substantially a ring member.
  • the side wall of the unlocking ring 22 is provided with an operating portion 22a.
  • the operating portion 22a extends out of the slot 112 for manual control by the operator, and the operating portion 22a can be within the length of the slot 112. The movement is such that the unlocking ring 22 can be driven to perform positional switching between the disassembly mode and the operating mode.
  • the bottom end of the unlocking ring 22 is provided with a plurality of oblique portions 22b.
  • the cam member 23 is correspondingly provided with a plurality of chutes 23b that are engaged with the oblique projections 22b.
  • the oblique portion 22b is engaged with the inclined groove 23b.
  • the unlocking ring 22 is controlled by the operating portion 22a to rotate through an angle with respect to the cam member 23, and the inclined portion is at this time. 22b will climb up the slope of the chute 23b until the cam member 23 is displaced axially downward relative to the guide post 25 along the motor shaft 11 against the force of the spring 24, i.e., away from the motor shaft 11.
  • the unlocking position can be automatically
  • the ground is held to facilitate the disassembly and installation of the bottom plates 4, 6.
  • the drive assembly 3 includes a bearing 32 that mates with the eccentric output end 141, and an output head that is mated with the bearing 32.
  • the main body 36 is a driving mounting portion that is axially movably disposed with respect to the output shaft body 36 along the motor shaft 11 and a cover plate 33 that is fixedly coupled to the output head main body 36 by a screw 39.
  • the driving mounting portion is located at the cover plate 33 and the output head body 36.
  • the driving installation portion of the embodiment is provided with an annular tension ring 34, and a plurality of elastic members 35 are disposed between the tension ring 34 and the output head body 36 along the circumferential direction of the tension ring 34.
  • the elastic member 35 is a compression spring, and those skilled in the art can replace it with other elastic materials.
  • the drive assembly 3 is fixedly coupled to the end of the motor shaft 11 by fasteners 48 which are essentially transmissions that transfer the motion of the motor to the work floor.
  • the tension ring 34 is supported at the initial position, that is, the first position. At this time, the inclined portion 22b is engaged with the chute 23b.
  • the unlocking ring 22 is controlled by the operating portion 22a to drive the cam member 23 to move.
  • the cam member 23 moves, the displacement of the spring member 24 against the output shaft body 36 is generated along the axial direction of the motor shaft 11 to the tension.
  • the tight ring 34 moves against the elastic member 35 to the unlocked position, that is, the second position, and the elastic member 35 is in a compressed state.
  • the working bottom plate mated with the output head body 36 such as the round sand bottom plate 4 is allowed to be separated from the output head body 36.
  • another working bottom plate is replaced, for example, the plate sand bottom plate is mated with the output head body 36, and then the operating portion 22a controls the unlocking ring 22 to reversely rotate an angle with respect to the cam member 23, and the cam member 23 is reset by the spring 24.
  • the force is moved upward and reset, and is engaged with the chute 23b again.
  • the tension ring 34 returns to the initial position under the force of the elastic member 35, thereby locking the sand bottom plate to the output head body 36.
  • the tension ring 34 is substantially an annular body, and a plurality of first engaging members 341 are disposed on the inner end surface of the annular body in a circumferential direction, and the first engaging member 341 is along the tension ring 34. Projecting radially inwardly, and forming a buckle portion 342 protruding from the bottom surface of the tension ring 34 in the radial direction, the buckle portions 342 are all located on the same side of the first clip member 341; the tension ring 34 is adjacent A limiting portion 343 is further disposed between the two first engaging members 341, and a gap L1 is formed between the limiting portion 343 and the engaging portion 341, wherein the locking portions 342 are respectively located on the first engaging member 341. One side of the gap L1.
  • the buckle portion 342 is provided with a first engagement surface 342a.
  • the output head main body 36 is substantially an annular body having an outer diameter slightly larger than the tension ring 34.
  • the outer side of the outer surface of the annular body is evenly distributed with a plurality of torque transmitting portions 361, and the inner side of the outer circumferential surface is circumferentially Uniformly distributed with a plurality of radially extending protruding members 362, the protruding members 362 are provided with guiding portions 362a; adjacent A gap L2 through which the first engaging member 341 is provided is disposed between the protruding members 362; the protruding members 362 respectively extend in the vertical direction to form a boss portion 363 which is higher than the surrounding surface, and the adjacent boss portion 363 is formed by a ring shape Walls 364 are connected.
  • the extension width of the boss portion 363 is slightly smaller than the gap L1, so that when the tension ring 34 is mated with the output head body 36, the boss portion 363 can pass through the gap L1 of the tension ring 34, thereby allowing the tension ring 34.
  • the tension ring 34 is guided by the boss portion 363 to overcome the displacement of the elastic member 35 relative to the output head body 36 in the direction of the motor shaft 11, that is, the tension ring 34 can
  • the output head body 36 moves between the first position and the second position in the vertical direction.
  • the output head body 36 located inside the protruding member 362 is provided with an annular boss 365, and the peripheral surface of the annular boss 365 is provided with a tapered boss surface 368.
  • the round sand bottom plate 4 is provided with a central circular groove 47, a disk surface 41 is disposed around the central circular groove 47, and a mating area is provided between the disk surface 41 and the central circular groove 47, including A torque transmitting portion 40 distributed circumferentially on the inner side wall of the disk surface 41, the torque transmitting portion 40 corresponding to the torque transmitting portion 361 of the output head body 36 for torque when the round sand bottom plate 4 is mounted to the driving assembly 3.
  • the transmission portion 40 is engaged with the torque transmitting portion 361 of the output head body 36. With such a mating relationship, the output head body 36 transmits its torque to the round sand floor 4 during motor rotation.
  • a second engaging member 42 protruding from the disk surface 41 is disposed on the round sand bottom plate 4 in the circumferential direction, and the second engaging member 42 is disposed corresponding to the gap L2 for use in the round sand
  • the second latching member 42 is engaged with the first latching member 341 through the gap L2 .
  • the second latching member 42 is provided with the latching portion 43 and the guiding portion 44 .
  • the inner side of the second engaging member 42 is circumferentially evenly distributed with an axial tapered surface 49 extending axially along the motor shaft 11 for axial taper surface 49 and boss when the round sand bottom plate 4 is mated with the output head body 36.
  • Such a gapless mating between the rounded sole plate 4 and the output head body 36 results in a very high degree of axial or radial fit between the two.
  • the engaging portion 43 is provided with a second engaging surface 43a, and the second engaging surface 43a is disposed in parallel with the first engaging surface 342a.
  • the axial tapered surface 49 and the boss tapered surface 368 are at least partially completely engaged, so that the first sanded bottom plate 4 is first engaged.
  • the axial and radial clearance of the round sand bottom plate 4 and the output head body 36 can be well removed by the axial lifting force of the piece 341. So that the two are basically coaxial and stable when rotating, reducing the gap between the two The resulting out-of-synchronization generates additional energy loss and the work efficiency is significantly improved.
  • the guiding portion 44 of the second latching member 42 rises along the guiding portion 362a of the protruding member 362, thereby entering the latching portion 342 and the protruding member 362. In the gap formed.
  • the engaging portion 43 of the second latching member 42 and the second engaging surface 43 and the first latching member 341 The buckle portions 342 are opposite to each other.
  • the second engaging surface 43a is driven by the first engaging surface 342a of the tensioning ring 34 into the gap L2.
  • the small gap portion, the second engaging surface 43 is stopped by the upward force of the first engaging surface 342a, and cannot be pulled downward from the smaller gap portion, so that the tension ring 34 locks the round sand bottom plate 4 Drive component 3.
  • the second latching member 42 is movable relative to the first latching member 341 to be engaged or disengaged from the first latching member 341; wherein, when the driving component is in the mating state with the working bottom panel, the first latching member 341 and the first latching member 341
  • the two latching members 42 at least partially coincide with the orthographic projections on a plane perpendicular to the relative movement direction of the first latching member 341 and the second latching member 42 to prevent the first latching member 341 and the second latching member 42 from being oriented.
  • the opposite direction moves and separates.
  • the first engaging surface 342a and the second engaging surface 43a at least partially overlap under the pressure applied to each other.
  • the elastic member 35 provides the first engaging surface 342a with a pressure applied to the second engaging surface 43a.
  • the cam member 23 presses the tension ring 34 downward from the first position.
  • the movement is moved to the second position, that is, the tension ring 34 is displaced downward, and the round sand bottom plate 4 can be operated to move downward, that is, the guide portion 43 of the second clip 42 is along the protruding piece.
  • the guide portion 362a of the 362 is slid into the larger gap L2 by the smaller gap portion, so that the second clip member 42 can be disengaged from the gap L2, that is, the work bottom plate is allowed to separate from the output head body 36.
  • the slab bottom plate 6 is provided with a mating area similar to that of the round sand bottom plate.
  • the installation method of the round sand bottom plate 4 can be referred to, except that
  • the outer side of the second engaging member 42 of the slate bottom plate 6 is provided with a slate joint portion 62 corresponding to the oscillating foot 12 on the main body portion 1, so that when the slate bottom plate 6 is mated with the output head body 36, the slate is The connecting portion 62 is engaged with the swinging foot 12 so that the sander is in the plate sand working mode, and the swinging foot 12 defines the plate sand bottom plate 6.
  • the slate joint portion 62 is substantially disposed as a columnar body, wherein the center of the columnar body protrudes from a cylinder having a spherical diameter slightly smaller for mating with a central circular groove provided in the swinging leg 12 of the main body portion 1.
  • the spherical surface of the center cylinder can be replaced with a tapered surface. It is conceivable by those skilled in the art that the slab joint portion 62 and the oscillating foot 12 are not limited to the column shape, and may be provided in other shapes to achieve stable transmission when mating.
  • the sander 100 can be provided with two different functions of round sand and sand, without the need to prepare two tools, and the work of installing and disassembling the working bottom plate is very convenient.
  • the first engaging member 341 is moved from the first position to the second position; and the working bottom plates 4, 6 are axially moved relative to the driving assembly 3 along the motor shaft 11 to the mating position;
  • the first clip is returned to the first position from the second position.
  • the movement of the first clip from the first position to the second position is driven and controlled by an unlocking ring 22 at least partially disposed outside the housing 110.
  • the first engaging members 341 are first moved from the first position to the second position; and the working bottom plates 4, 6 are axially separated from the driving assembly 3, and the first engaging members 341 are second.
  • the positional movement to the first position is driven and controlled by the unlocking ring 22.
  • the structural arrangement of the working bottom plates 4, 6 and the drive assembly 3 allows the work bottom plate itself and the drive assembly to have components for the connection function, eliminating the need for additional third components, such as screws and the like. Fixing or tightly fitting the two, so that the operation interface is simple, disassembling or replacing the working bottom plate is more convenient and quick.
  • the present embodiment has a structure similar to that of the sander 100 of the first embodiment, wherein the same structures are denoted by the same reference numerals and will not be described again.
  • One end of the control member of the release assembly is hinged to the casing 110 of the fuselage main body portion 1 and rotates relative to the casing 110 with the hinge point 111 of the casing 110 as a center of rotation.
  • the control member is an unlocking wrench 222, and the transmission member is lower.
  • the pressure ring 223 drives the mounting portion as a tension ring 34.
  • the annular lower pressing ring 223 is sleeved on the casing 110, and one end thereof is rotatably connected to the unlocking wrench 222 through the pin shaft, and the other end is abuttable against the tension ring 34 of the driving assembly 3.
  • the lower pressing ring 223 is moved in the axial direction of the output shaft with the unlocking wrench 222 as a fulcrum with the connecting point 2231 of the unlocking wrench 222 as a fulcrum to drive the tension ring 34 of the driving assembly 3 to move axially along the output shaft.
  • the unlocking wrench 222 is provided with a waist hole 2221, and the lower pressing ring 223 includes a mounting post 2232 that is locked on the waist hole 2221.
  • the mounting post 2232 can move in the waist hole 2221, so that the lower pressing ring 223 and the unlocking wrench 222 can be The connection is rotated while allowing the lower pressing ring 223 to move in the axial direction of the output shaft.
  • the unlocking wrench 222 includes a mounting portion 2222 and a locking portion 2224 disposed at one end of the mounting portion 2222 and connected to the mounting portion 2222 at an angle.
  • One end of the mounting portion 2222 away from the locking portion 2224 is hinged with the casing 110, and the unlocking wrench 222 is rotated about the mounting portion 2222 and the hinge point 111 of the casing 110.
  • the waist hole 2221 is disposed on the mounting portion 2222, and the waist hole 2221 is disposed on the mounting portion 2222 along the extending direction of the mounting portion 2222 with respect to the locking portion 2224.
  • the mounting portion 2222 includes two spaced apart arms (not shown) through which the housing 110 passes.
  • One end of the two spiral arms is commonly fixed to the locking portion 2224, and the other end is provided with a mounting hole to be rotatably connected to the casing 110 through the pin shaft, respectively.
  • the waist hole 2221 is disposed in the middle of the spiral arm. Further, a middle portion of the spiral arm is provided with a lug, and the waist hole 2221 is opened on the lug.
  • the lower pressing ring 223 has a substantially annular structure and is provided with two oppositely disposed connecting arms.
  • the two connecting arms extend toward the unlocking wrench 222, and the ends of the two connecting arms and the unlocking wrench 222 respectively protrude from the mounting post 2232.
  • the mounting post 2232 is locked in the waist hole 2221 and movable in the waist hole 2221, so that the lower pressing ring 223 is rotatably connected in the unlocking wrench 222, and can be in the waist hole 2221 when the unlocking wrench 222 is rotated. Under the restriction, it moves up and down in the axial direction of the output shaft, and does not interfere with the rotation of the unlocking wrench 222.
  • the sander further includes a retaining mechanism capable of holding the drive mounting portion in a disassembled state by which the tension ring 34 can be held in the unlocked position, ie, the second position.
  • the retaining mechanism includes a locking member 2226 coupled to the locking portion 2224 and a retaining member 123 disposed to the housing 110. Wherein the locking member 2226 The latching member 123 can be rotated and held in the direction of the driving assembly 3 in the direction of the driving component 3 to block the unlocking wrench 222 from returning to the casing 110.
  • the unlocking wrench 222 when the unlocking wrench 222 is rotated toward the driving assembly 3 until the working bottom plate can be disengaged from the driving assembly 3, the unlocking wrench 222 is locked by the blocking of the locking member 2226, so that the operator can conveniently replace the working bottom plate without worrying about unlocking the wrench. 222 returns to the direction of the casing 110.
  • the holding member 123 is disposed in the casing 110 of the sander 100 near the locking member 2226; the locking member 2226 includes the locking member body 2226a and the locking member body 2226a.
  • the first locking portion 2226b One end of the locking body 2226a away from the first locking portion 2226b is coupled to the locking portion 2224 of the unlocking wrench 222 by a pin shaft to follow the unlocking wrench 222 to rotate. One end of the first locking portion 2226b away from the locking body 2226a can abut against the holding member 123 to lock the unlocking wrench 222.
  • the locking member 2226 further includes a second locking portion 2226c, and the second locking portion 2226c is disposed at one end of the locking body 2226a at the first locking portion 2226b and spaced apart from the first locking portion 2226b.
  • the holding member 123 can extend between the first locking portion 2226b and the second locking portion 2226c.
  • the holding member 123 can be formed at the first locking portion 2226b and the second locking portion 2226c. The movement of the accommodating space, that is, the holding member 123 moves from the bottom portion of the first locking portion 2226b on the side closer to the second locking portion 2226c to the top end of the first locking portion 2226b, and abuts against the first locking portion 2226b.
  • the unlocking wrench 222 is required to rotate to move the lower pressing ring 223 away from the driving assembly 3, the operator can manually press the locking member 2226 to release the locking member 2226 from the holding member 123, thereby releasing the unlocking state of the unlocking wrench 222.
  • the unlocking wrench 222 is held at a predetermined position due to the locking member 2226 being abutted against the holding member 123.
  • the unlocking wrench 222 can be driven to rotate downward in a direction in which the hinge point 111 of the casing 110 is rotated toward the driving assembly 50, and the lower pressing ring 223 can be driven.
  • the pressing ring 223 pushes the first engaging member 341 of the tensioning ring 34 to move toward the second engaging member 42 until the tensioning ring 34 overcomes the elastic member.
  • the action of the 35 moves to the unlocked position, that is, the second position, and the elastic member 35 is in a compressed state.
  • a working bottom plate such as a round sand bottom plate 4, mated with the output head body 36 is allowed to be separated from the output head body 36.
  • the locking member 2226 rotates under the driving of the unlocking wrench 222 to abut against the holding member 123, so as to prevent the unlocking wrench 222 from recovering during the replacement of the working bottom plate.
  • the locking member 2226 can be pressed to disengage the locking member 2226 from the holding member 123, thereby rotating the unlocking wrench 222 away from the driving assembly 3, thereby moving the first engaging member 341 away from the second card.
  • the connector 42 moves in the direction in which the tension ring 34 returns to the initial position under the force of the elastic member 35, thereby locking the work substrate to the output head body 36.
  • the operator can rotate the unlocking wrench 222 to sequentially drive the lower pressing ring 223 and the driving assembly 3 to move in the axial direction of the casing 110, so that the driving assembly 3 is switched between the mounted state and the disassembled state.
  • the work substrate can be removed from the drive assembly 3 to complete the replacement of the work substrate.
  • the retaining mechanism can prevent the unlocking wrench 222 from returning to the casing 110 during the replacement of the working floor, so that the operator can conveniently and easily replace the working floor.
  • FIG. 22 and FIG. 23 the present embodiment has a structure similar to that of the first embodiment, and the same structures are denoted by the same reference numerals and will not be described again.
  • one end of the control member is hinged to the casing 110, and rotates with the hinge point 2241 of the casing 110 as a center of rotation.
  • the control member of the release assembly is an unlocking pressure bar 224
  • the transmission member is a lower pressing ring 225.
  • the annular lower pressing ring 225 is sleeved on the casing 110, and one end thereof is rotatably connected to the unlocking pressing rod 224 through the pin shaft, and the other end is abuttable against the driving assembly 3.
  • the lower pressing ring 225 moves in the axial direction with the unlocking pressure bar 224 as a fulcrum with its connection point 2251 of the unlocking pressure bar 224 as a fulcrum to drive the tension ring 34 to move.
  • the unlocking pressure bar 224 is provided with a waist groove 224a.
  • the lower pressing ring 225 includes a mounting post 2252 that is locked to the waist hole 224a.
  • the mounting post 2252 can move within the waist hole 224a, so that the lower pressing ring 225 and the unlocking pressure bar
  • the 224 is rotatably coupled while allowing the lower pressing ring 225 to move in the axial direction.
  • the sander 100 also includes an operating member for driving the tension ring 34 to the unlocked position, i.e., the second position, and a retaining mechanism that retains the tensioning ring 34 in the second position.
  • the operating member is mated with the unlocking lever 224 and operatively drives the unlocking lever 224 to move.
  • the operating member includes a dial assembly 2242 mounted to the unlocking lever 224.
  • the unlocking lever 224 is rotatable relative to the housing 110 by the dial assembly 2242 and is positioned under the limit of the retaining mechanism.
  • the dial assembly 2242 includes a dial 2242a, a dial support shaft 2242b, and a dial pin 2242c disposed on the dial 2242a.
  • One end of the dial 2242a passes through the dial support shaft 2242b and rotates about the central axis of the dial support shaft 2242b, and drives the dial pin 2242c on one side of the central axis to rotate about the central axis.
  • the unlocking pressure bar 224 is provided with a sliding slot, and the dial pin 2242c is inserted into the sliding slot and slides along the sliding slot during the rotation. Since the dial pin 2242c is located on one side of the central axis, the rotation of the dial pin 2242c can drive the unlocking lever 224 to rotate with the hinge point 2241 as the center of rotation.
  • the holding mechanism of this embodiment includes a blocking member (not shown) provided to the casing 110, and the tension ring 34 is held in the second position when the knob 2242a is rotated to a position abutting against the blocking member.
  • the unlocking lever 224 can be driven to rotate with the hinge point 2241 of the casing 110 as a center of rotation, thereby driving the lower pressing ring 225.
  • the pressing ring 225 pushes the first engaging member 341 of the tensioning ring 34 to move toward the second engaging member 42 to move the tensioning ring 34 against the elastic member 35 to the unlocking position. That is, the second position, at which time the elastic member 35 is in a compressed state, and the working bottom plate mated with the output head body 36, such as the round sand bottom plate 4, is allowed to be separated from the output head body 36.
  • control dial assembly 2242 is rotated and returned in the other direction, thereby moving the lower pressing ring 224 away from the driving assembly 3, thereby moving the first engaging member 341 away from the second engaging member 42.
  • the direction is moved, at which time the tension ring 34 returns to the initial position under the force of the elastic member 35, thereby locking the work bottom plate to the output head body 36.
  • the operator manually rotates the dial 2242a to drive the unlocking lever 224 to rotate, thereby driving the lower pressing ring 225 and the driving disk mounting structure 30 to move in the axial direction of the casing 110, so that the driving assembly 3 is
  • the switching between the installation state and the disassembly state finally allows the work substrate to be detached from the drive assembly 3 to complete the replacement of the work substrate.
  • the present embodiment is a modification of the third embodiment, and the same structures are denoted by the same reference numerals and will not be described again.
  • the operating member drives the unlocking pressure bar 224 to rotate about the hinge point 2241.
  • the operating member is a cam wrench 228, and the connecting rod 227 is connected to the cam wrench 228.
  • the rotation of the cam wrench 228 is converted into the axial movement of the link 227.
  • the cam wrench 228 is rotatably coupled to the casing (not shown) via a pivot 228c.
  • the cam wrench 228 includes an operating portion 228a and a cam portion 228b.
  • the link 227 is provided with a first mating end 227a that mates with the cam portion 228b and a second mating end 227b that mates with the unlocking strut 224.
  • the connecting rod 227 is vertically disposed in the casing, the first mating portion 227a of the connecting rod 227 abuts the cam wrench 228 disposed outside the casing, and the second mating end 227b and the notch 224b of the unlocking strut 224 Engagement mating.
  • the link 227 is disposed between the cam wrench 228 and the unlocking lever 224 such that rotation of the cam wrench 228 is converted by the link 227 into rotation of the unlocking lever 224.
  • the cam wrench 228 it is only necessary to control the cam wrench 228 to rotate relative to the casing about the pivot 228c through the operating portion 228a.
  • the link 227 can drive the unlocking pressure bar 224 to rotate about the hinge point 2241, thereby driving the lower pressing ring 225 along the axis.
  • the lower pressing ring 225 drives the tensioning ring 34 to move axially against the action of the resilient member 35 between the initial position and the unlocked position.
  • the waist groove 224a of the unlocking pressure bar 224 is disposed at a substantially intermediate position between the hinge point 2241 and the notch 224b, the unlocking pressure bar 224 engaged with the link 227 through the notch 224b is engaged with the waist groove 224a when pivoted.
  • the connecting point 2251 drives the lower pressing ring 225 to move relatively axially relatively stably.
  • the force is depressed to a lower position, and the axial movement of the link 227 drives the unlocking lever 224 to rotate relative to the housing, thereby pushing the lower pressing ring 225 to move axially to move the tensioning ring to the unlocked position, i.e., the second position.
  • the present embodiment has a structure similar to that of the first embodiment, and the same structures are denoted by the same reference numerals and will not be described again.
  • the driving assembly 8 of the embodiment is used for matching with the round sand bottom plate and the sand sand bottom plate to respectively perform the round sand working mode or the sand sand working mode.
  • the present embodiment uses the round sand bottom plate 4' for description. .
  • the drive assembly 8 includes an output head body 86 and a movable tension disposed on the output head body 86.
  • the first latching member 84 specifically, the number of the first latching members 84 includes a plurality of, respectively, distributed along the circumferential direction of the output head body 86. The difference is that the first latching member 84 of the output head body 86 is respectively provided with a mounting seat 88.
  • the first latching member 84 is pivotally connected to the mounting seat 88 by the rotating pin 85, and the first latching member 84 is A resetting device is disposed between the mounting seats 88, specifically a spring 83.
  • the first engaging member 84 is provided with a hook portion 84a and an active portion 84b that is selectively abutted with the cam member 23.
  • the hook portion 84a is in the first position.
  • the hour hook portion 84a cooperates with the work bottom plate, such as the second snap surface 43' of the round sand bottom plate 4', to prevent the round sand bottom plate 4' from being separated from or detached from the drive assembly 8.
  • the drive assembly 8 is coupled to the motor shaft 11 by fasteners 48 that are rotatably coupled to the eccentric output portion 141 by bearings 82.
  • the acting portion 84b of the first engaging member 84 pivots about the rotating pin 85 under the depression of the cam member 23, so that the hook portion 84a is disengaged from the second engaging member of the rounded sole plate 4', thereby allowing The round sand floor 4' is detached or detached from the drive assembly 8.
  • the round sand bottom plate 4' is provided with a central circular groove 47', and a torsion transmitting portion 40' is provided around the central circular groove 47' for the torque transmitting portion on the output head body 86 (not shown)
  • the mating is used to transfer the motion of the drive assembly 8 to the rounded sole plate 4'.
  • An annular boss is provided between the torsion transmitting portion 40' and the center circular groove 47', and the inner peripheral surface of the annular boss is provided as an axial tapered surface 49'.
  • the disk surface 41' is an annular surface disposed around the central circular groove and away from the torsion transmitting portion 40'.
  • a groove 45 is formed between the disk surface 41' and the torsion transmitting portion 40', and the disk surface 41' is adjacent to the central circular groove 47.
  • a plurality of second latching members 42' are disposed on one side of the circumferential direction, and the second latching member 42' has a guiding portion 44' disposed in a slope and a second engaging surface 43', wherein the second card A notch 46 is formed between the connecting surface 43' and the recess 45, and the hook portion 84a for the first engaging member 84 is inserted into the notch 46 along the guiding portion 44' and then engaged with the second engaging surface 43'. Thereby, the round sand bottom plate 4' is locked to the output head body 86.
  • the bottom end of the output head body 86 is provided with a groove 89, and the inner side wall of the groove 89 is provided as a tapered surface 368' for the working bottom plate including the round sand bottom plate 4' and the sand plate bottom plate.
  • the axial tapered surface 49' of the annular boss 365 is mated with the tapered surface 368' so that the axial or radial fit between the two is very high.
  • the spring 83 is pivoted about the rotation pin 85 in the direction indicated by the arrow R, while the hook portion 84a slides along the guide portion 44' into the groove 45.
  • the hook portion 84a finally enters the notch 46 and is engaged with the second engaging surface 43' to match or lock the round sand bottom plate 4' with the driving assembly 8.
  • the spring 83 returns to the initial state from the compressed state. And under the elastic force of the spring 83, the mating or locking of the round sand bottom plate 4' with the drive assembly 8 is maintained.
  • the cam member 23 is displaced in the motor shaft direction R1 by the operation portion (not shown) of the control member.
  • the first engaging member 84 is pressed down, the spring 83 is compressed, and the acting portion 84b is pivoted about the rotating pin 85 in the direction indicated by the arrow R1 to be disengaged from the second engaging surface 43' of the rounded bottom plate 4'.
  • the snaps are engaged to allow the rounded sand floor 4' to be detached or detached from the drive assembly 8.
  • the round bottom plate 4' and the sand plate are included, and the working plate is axially moved relative to the driving assembly 8 along the motor shaft 11 to the mating position, so that the first engaging member 84 is on the working bottom plate.
  • the force of the spring 83 is moved from the first position to the second position.
  • the first engaging member 84 is at the spring 83. The force is automatically returned from the second position to the first position, thereby enabling the work floor to be locked relative to the drive assembly 8.
  • the first engaging member 84 pivotally moves around the rotating pin 85.
  • the first engaging member 84 is moved from the first position to the second position; the working bottom plate is axially separated from the driving assembly 8, and the first engaging member is moved from the first position to the second position by the control Piece 22 drives control.
  • the present embodiment has a structure similar to that of the first embodiment, and the same structures are denoted by the same reference numerals and will not be described again.
  • the driving assembly 9 of the embodiment is used for matching with the round sand bottom plate and the sand sand bottom plate to respectively perform the round sand working mode or the sand sand working mode.
  • the present embodiment uses a round sand bottom plate for description.
  • the driving assembly 9 includes an output head body 95, an unlocking ring 93 movably disposed with respect to the output head body 95, a retaining ring 94 sleeved on the unlocking ring 93, a bearing 92 fastened with the output head body 95, and a bearing 92 Side bearing retaining ring 91.
  • the unlocking ring 93 is axially displaceable relative to the output head body 95 along the motor shaft 11.
  • the unlocking ring 93 includes a plurality of legs 93a extending in the direction of the output head body 95.
  • the legs 93a are evenly distributed along the direction of the ring of the unlocking ring 93.
  • Each of the legs 93a is provided with a slope 931 and a groove 932 connecting the slope 931 under normal conditions.
  • the retaining ring 94 engages in the recess 932 of the leg 93a.
  • the output head body 95 is substantially an annular body including an annular surface 95a and a boss 951 protruding from the annular surface.
  • the boss 951 includes a plurality of abutting members 953 distributed in the circumferential direction, and the abutting member 953 extends radially outward.
  • the boss 951 is provided with a first passage 954 and a second passage 956 at intervals, wherein the second passage 956 is for receiving the leg 93a of the unlocking ring.
  • the second passage 956 is provided with an abutment wall 958.
  • the round sand bottom plate 4a also has a disk surface 41' and a center circular groove 47, and a region between the disk surface 41' and the center circular groove 47 is formed with a groove 45 lower than the disk surface 41'.
  • a plurality of circumferentially distributed second engaging members 42a are provided in the recess 45', and the second engaging member 42a has a free end extending in the straight direction and extending beyond the disc surface 41'.
  • the free end of the second engaging member 42a is provided with an inclined guide portion 44a, a transition portion 44b connected to the guide portion 44a, and a catch portion 44c connected to the transition portion 44b and inclined in the opposite direction to the guide portion 44a, and the guide portion
  • the two sides of the 44a are respectively provided with upright transmission portions 44d (only one is shown).
  • the rear surface of the second engaging member 42a is provided with a mating surface 492 that abuts against the passage wall of the first passage 954.
  • the round sand bottom plate 4a and the driving assembly 9 are in the mating state, the retaining ring 94 engaged with the groove 955 of the output head body 95 and the engaging portion 44c of the second engaging member 42a of the rounded sole plate 4a.
  • the round sand bottom plate 4a can remove the axial gap between the round sand bottom plate 4a and the output head body 95 under the elastic force of the retaining ring 94.
  • the mating face 492 of the second clip 42a is interference fit with the abutment wall 958 of the passage 956 to eliminate the radial clearance of the rounded sole plate 4a from the drive assembly 9.
  • the top surface of the groove 45' of the round sand bottom plate 4a abuts against the bottom surface of the output head body 95, and the axial gap between the round sand bottom plate 4a and the output head body 95 is eliminated. Therefore, it is ensured that the round sand bottom plate 4a and the output head body 95 are substantially coaxial and have good synchronism when rotating, and the synchronization between the two due to the gap is reduced to generate additional Energy loss and work efficiency are significantly improved.
  • the retaining ring 94 and the guiding portion 44a abut each other and slide on the guiding surface 44a, while the retaining ring 94 is radially deformed, thereby allowing the second engaging member 42a to further enter the passage 954; when the second engaging member 42a completely enters the passage 956, the retaining ring 94 slides along the guiding portion 44a toward the transition portion 44b, and then slides to the engaging portion 44c by the transition portion 44b, at which time the retaining ring 94 returns to the initial state from the deformed state, and finally the engaging portion The 44c is snap-fitted to engage or lock the rounded sole plate 4a to the drive assembly 9. At this time, the transmission portion 44d of the second engaging member 42a is respectively engaged with the side wall of the passage 954 for transmitting torque when the driving assembly 9 is rotated.
  • the cam member 23 is generated in the motor shaft direction by the operation portion (not shown) of the control member.
  • the control member 93 is depressed by the displacement, at which time the ramp 931 of the control member 93 begins to abut against the retaining ring 94 and slides along the ramp 931 while the retaining ring 94 is radially deformed.
  • the catching portion 44c of the second latching member 42a is disengaged from the retaining ring 94, thereby allowing the rounded soleplate 4a to be detached or detached from the drive assembly 9.
  • the retaining ring 94 of the embodiment is the first engaging member.
  • the circular sand bottom plate 4a and the sand bottom plate are arranged to move the working bottom plate relative to the driving assembly 9 along the motor shaft 11 so that the retaining ring 94 generates radial elastic deformation under the axial force of the working bottom plate.
  • a position is moved to the second position to allow the second latching member 42a to move further axially to the mating position, the first latching member 94 is restored to deform, and the second latching member is returned to the first position to the second latching member.
  • the 42a is snapped so that the work floor is locked relative to the drive assembly 9.
  • Control 22 drives control.
  • the working bottom plate includes a bottom plate main body and a second engaging member disposed on the bottom plate main body.
  • the retaining ring 94' is disposed as a second engaging member on the working bottom plate, such as a round sand bottom plate or a sand bottom plate.
  • the retaining ring 94' is received in the receiving portion of the round sand bottom plate 4b and Radial motion can be generated.
  • a first latching member 960 is disposed on the driving component 9'.
  • the first latching member 960 has a guiding portion 962, a latching portion 964, and a transition portion 963 connecting the guiding portion 962 and the latching portion 964.
  • the 962 and the engaging portion 964 are slope surfaces having opposite inclination directions, respectively.
  • a groove 45' is provided in the round sand bottom plate 4b.
  • the groove 45' of the round sand bottom plate 4b is aligned with the first engaging member 960 and abuts.
  • the retaining ring 94' is guided under the action of the thrust.
  • the portion 962 slides and is displaced radially outward, that is, elastically deformed, while the first engaging member 960 partially enters the recess 45'; further, the retaining ring 94' slides along the guiding portion 962 through the transition portion 963
  • the latching portion 964 at this time, the retaining ring 94' is restored to deform, that is, the radial displacement is generated.
  • the first engaging member 960 completely enters the recess 45', and the retaining ring 94' is engaged with the engaging portion 964, and Under the elastic force of the retaining ring 94', the mating or locking of the round sand bottom plate 4b with the drive assembly 9' is maintained.
  • the release assembly is disposed on the working bottom plate, and the displacement of the radial direction is generated by the control member driving the retaining ring 94' disposed on the working bottom plate, so that the joint portion 964 and the retaining ring 94' are disengaged.
  • the mating is allowed to separate the working bottom plate from the main body of the sander.
  • the retaining ring 94' of this embodiment is the second engaging member.
  • the working bottom plate When the working bottom plate is installed, the working bottom plate is axially moved relative to the driving assembly 9' along the motor shaft 11, so that the retaining ring 94' is radially elastically deformed from the first position to the second position under the axial force of the working bottom plate.
  • the second latching member 94' In order to allow the first latching member 960 to move further axially to the mating position, the second latching member 94' is restored to deform, and the first latching member 960 is engaged by the second position returning to the first position, thereby enabling the first latching member 960 to be engaged.
  • the work floor is locked relative to the drive assembly 9'.
  • the second engaging member 94' When the working bottom plate is disassembled, the second engaging member 94' is moved from the first position to the second position; the working bottom plate is axially separated from the driving assembly 9', and the second engaging member 94' is moved from the first position to the first position.
  • the two positions are driven and controlled by the control member 22.
  • the present embodiment has a structure similar to that of the first embodiment, and the same structures are denoted by the same reference numerals and will not be described again.
  • the sander 100' includes a main body portion 1a, a release assembly 2a, and a drive Component 3a.
  • the main body portion 1a is respectively provided with a swinging foot fixing member 121 fixed to the casing 110 at four opposite corners of the motor shaft 11, and one end of the swinging foot 12 is connected with the swinging foot fixing member 121, and the other end is provided with a swinging foot.
  • the engaging portion 12a, the swinging foot engaging portion 12a is fixed to the swinging foot 12 by the fastener 18.
  • the release assembly 2a includes a switch 20 disposed within the housing of the main handle 102, a switch trigger 105 movably coupled to the switch 20, and a locking member 27 disposed on a side of the housing 110 adjacent the main handle 102, the locking member 27 being proximate
  • One end of the switch trigger 105 is provided with an opening 27a.
  • the switch trigger 105 is provided with a cylinder 26 that is engaged with the opening 27a.
  • the switch trigger 105 is coupled with the locking member 27.
  • the other end of the locking member 27 far away from the hole 27a is provided with a locking portion 38.
  • the driving assembly 3a includes an output head body 31, a bearing 32 fitted to the output head body 31, a tension ring 34a sleeved on the output head body 31 and displaceable relative to the output head body 31 in the direction of the motor shaft 11, and
  • the output head body 31 is fixedly coupled to the support member 37; wherein a plurality of elastic members 35a are disposed between the support member 37 and the tension ring 34a.
  • the tension ring 34a is supported by the elastic member 35a away from the support member 37.
  • the output head body 31 is provided with a card slot 31a that is selectively engaged with the locking portion 38.
  • the locking member 27 Disengaged from the card slot 31a, the locking member 27 is in the first position, and the drive assembly 3a is free to rotate.
  • the switch trigger 105 is released, the switch trigger 105 is reset by its own elastic member, and the locking member 27 drives the locking portion 38 to move away from the main handle 102, while the drive assembly 3a remains rotated due to inertia until the locking portion 38 is aligned with the card slot 31a, the locking member 27 will be engaged with the card slot 31a, the locking member 27 is in the second position, the driving assembly 3a is locked, and the driving assembly 3a and the locking portion 38 are in a relatively fixed connection, that is, the driving assembly 3a At this time, it is in an anti-rotation state, thereby facilitating the replacement of the working bottom plate, for example, disassembling the sand bottom plate, installing the round sand bottom plate, or disassembling the round sand bottom plate, and installing the plate sand bottom plate.
  • a plurality of notches 351 are disposed on the outer peripheral surface of the tension ring 34a.
  • the two sides of the notch 351 are respectively groove walls 352, wherein the groove walls 352 on the same side of all the notches 351 are respectively
  • a guide surface 353 is provided.
  • the upper end surface of the tension ring 34a is provided with a connecting surface 354 connected to the guiding surface 353, and a latching surface 355, wherein the guiding surface 353 and the engaging surface 355 are inclined in opposite directions.
  • the support member 37 is provided as a ring member, and the peripheral surface of the support member 37 is provided as a tapered surface 371.
  • a position of the slab bottom plate 6a adjacent to the two ends is respectively provided with a mating structure for connecting the swinging foot 12a, and the mating structure includes a first mating portion 51 and a second mating portion 52, wherein the second mating portion
  • the connecting portion 52 includes a pair of abutting regions that cooperate with the swinging legs 12a, and an arcuate wall 521 that connects the two abutting regions.
  • the curved wall 521 and the two abutting regions are formed with an arcuate groove 522 formed in an arc shape.
  • One end of the slot 522 is provided with a limiting wall 523.
  • the first mating portion 51 is substantially an abutting wall disposed above the arcuate groove 522 side.
  • the sander 100' is provided with a locking device, and the position of the sandblasting bottom plate 6a with respect to the main body portion 1a can be locked or released by the locking device.
  • the locking device includes an operating portion 61 disposed on the slate bottom plate 6a, and a positioning member 126 on a side of the arcuate groove 522 away from the center of the bottom plate; in a normal state, the positioning member 126 is in an elastic member (not shown)
  • the force is maintained in a locked position protruding from the arcuate groove 522, and the slab bottom plate 6a can be locked with respect to the main body portion 1a; the operating portion 61 operatively controls the locating member 126 to move from the locked position to the released position, at which time the positioning member 126 At the position of exiting the arcuate groove 522, the slate bottom plate 6a can be released from the main body portion 1a so as to be detachable or detachable from the main body portion 1a.
  • the four main swing portions 12a of the main body portion 1a of the sander 100' are connected to each other in two diagonal directions, and correspond to the positions of the second mating portions 52 of the slate bottom plate 6a, respectively.
  • An arcuate connecting portion 124 is disposed between the two adjacent swinging legs 12a.
  • the intermediate portion of the arcuate connecting portion 124 is provided with a projection 125 that is slidably engaged with the arcuate groove 522.
  • the mating portion includes a convex ring 54.
  • the convex ring 54 is circumferentially distributed with a plurality of second engaging portions 55 that are coupled to the driving assembly 3a.
  • the second engaging portion 55 is extended radially inward from the upper end wall of the convex ring 54. A certain distance is formed, and the number of the second engaging portions 55 respectively corresponds to the notches 351 on the tension ring 34a in the driving assembly 3a to facilitate the mating of the sand bottom plate 6a or the round sand bottom plate 4b with the driving assembly 3a.
  • One end of the second engaging portion 55 is provided with a guiding surface 551 having a slope, and the engaging surface 552 is connected to the guiding surface 551, and the engaging surface 552 is formed by the inner side wall of the second engaging portion 55.
  • the inner side wall of the convex ring 54 is provided with a plurality of limiting portions 553 extending in the vertical direction, and one end of the limiting portion 553 is connected to the engaging surface 552.
  • a plurality of radially extending bosses 559 are circumferentially distributed on the inner side wall of the convex ring 54 below the second latching portion 55.
  • the side of the boss 559 facing the center circular groove 47 is a boss side wall 559a.
  • the plate sand bottom plate 6a is rotated in the direction shown, and the bumps 125 slide in the arc grooves 522.
  • the direction of rotation indicated by the arrow R2 in this embodiment is a counterclockwise direction, but the direction of rotation is not a limited manner of the present invention, and those skilled in the art can change according to the needs of the design.
  • the bump 125 slides in the arcuate groove 522 to a position abutting against the limiting wall 523, and the side end surface of the bump 125 abuts against the inner end surface of the first mating portion 51, at this time, the swinging foot 12a and The second mating portions 52 abut one by one.
  • the position of the bump 125 in the arcuate groove 522 is defined by the positioning member 126 under the action of the elastic member to prevent the sanding machine 100' from swinging the foot 122 relative to the sand bottom plate 6a along the curved groove 522 during operation. Sliding causes swaying, so that the swinging foot 122 can only oscillate the slab bottom plate 6a, and cannot perform other modes of motion.
  • the tension ring 34a of the driving assembly 3a is supported by the elastic member 35a, and moves away from the working bottom plate in the axial direction of the motor shaft 11 to the second position at an initial position away from the working bottom plate, at this time, the elastic member 35a Being compressed.
  • the operator releases the slab bottom plate 6a, and under the action of the elastic member 35a, the slab bottom plate 6a is brought back together from the second position to the initial position; at this time, the peripheral tapered surface of the support member 37
  • the 371 abuts against the boss side wall 559a of the work floor, thus eliminating the radial gap between the drive assembly 3a and the work floor.
  • the drive assembly 3a rotates the sand floor 6a, and the limit portion 553 engages with the groove wall 352 of the tension ring 34a for transmitting torque.
  • the operation portion 61 needs to be slid in the direction indicated in the drawing, i.e., the aligning member 126 is released from the projection 125 in the curved groove 522.
  • Sliding limitation then rotate the sand floor 6a at a certain angle in the direction indicated by the arrow R2', when the bump 125 slides Moving to the beginning of the arcuate groove 522, the engaging surface 552 of the second engaging member 55 is disengaged from the engaging surface 355 of the tensioning ring 34a, thereby allowing the sanding bottom plate 6a to be axially coupled to the driving assembly 3a along the motor shaft.
  • the direction of rotation indicated by the arrow R2' in this embodiment is a clockwise direction, but it is not a limitation of the embodiment of the present invention, and a design change can be made by those skilled in the art.
  • the working bottom plates 4b, 6a are axially moved relative to the driving assembly 3a along the motor shaft 11 to the mating position, and then the working bottom plate is rotated relative to the driving assembly 3a to the locking position.
  • the position of the slab bottom plate 6a is unlocked by moving the operation portion 61 provided on the slate bottom plate 6a, so that the slate bottom plate 6a is rotated in the opposite direction around the center line of the bottom plate, and the slate bottom plate 6a is opposed to the drive assembly 3a. It is axially separated along the motor shaft 11.
  • the round sand bottom plate 4b When the round sand bottom plate 4b is disassembled, the round sand bottom plate 4b is rotated in the opposite direction around the center line of the bottom plate, and the round sand bottom plate 4b is axially separated from the drive unit 3a along the motor shaft 11.
  • the present embodiment has a structure similar to that of the first embodiment, and the same structures are denoted by the same reference numerals and will not be described again.
  • the difference is that the motor is disposed laterally within the casing 110a of the sander 100a, and the output shaft 11b is disposed at an angle to the motor shaft 11a.
  • the output shaft 11b of the actual example and the motor shaft 11a are at a right angle of 90 degrees.
  • those skilled in the art can also set the output shaft 11b and the motor shaft 11a to an acute angle or an obtuse angle according to actual needs.
  • the motor shaft 11a is provided with a first bevel gear 127
  • the output shaft 11b is provided with a second bevel gear 128 that meshes with the first bevel gear 127, and the rotational motion of the motor is transmitted to the output shaft 11b through a pair of bevel gears 127, 128.
  • bevel gear of this embodiment can also be replaced by other transmissions or gears.
  • the fan 14 is tightly fitted to the output shaft 11b and has an eccentric output 141 for providing rotation; the drive assembly 3 is eccentrically coupled to the eccentric output 141 via a bearing 32.
  • the work bottom plate includes a round sand bottom plate and a sand bottom plate detachably coupled to the main body portion of the sander 100a.
  • the present embodiment has a structure similar to that of the second embodiment, and the same structures are denoted by the same reference numerals and will not be described again.
  • the sander further includes a control switch 720 and a switch lock structure 740.
  • the control switch 720 includes a trigger member 722 and a switch 724 that is slidably disposed in the first direction to the body 1 to resist or disengage the switch 724.
  • the switch locking structure 740 is disposed on the body 1,
  • the limit trigger 722 is optionally biased to disengage or abut the switch 724 such that the switch 724 switches between an actuatable state of the resisting trigger 722 and an unactuatable state of the disengagement trigger 724.
  • the switch 724 When the switch 724 is in the actuatable state, the switch 724 can be triggered to activate the sander by pressing the trigger 722.
  • the switch 724 When the switch 724 is in an unactuable state, the trigger 722 cannot be pressed and the switch 724 is triggered to activate the sander.
  • the trigger member 722 can slide relative to the body body portion 1 to activate or deactivate the switch 724.
  • the operator can trigger the switch 724 via the trigger 722.
  • the trigger 722 is disengaged from the switch 724, the operator cannot trigger the switch 724 via the trigger 722. In this way, when the triggering member 722 is disengaged from the switch 724, the safety hazard of the accidental touch switch 724 is avoided, and the personal safety of the user is ensured.
  • the switch lock structure 740 includes a first switch lock structure 742 that is slidable in a second direction.
  • the first switch locking structure 742 is abutted against the triggering member 722 to disengage the triggering member 722 from the switch 724, thereby making the switch 724 unbootable.
  • the sander cannot be started in the state.
  • the second direction is perpendicular to the first direction, and the first direction is perpendicular to the axis of the work floor and the second direction is parallel to the axis of the work floor.
  • the first switch locking structure 742 is disengaged in the second direction, so that the trigger member 722 can be biased to the side of the switch 724. slide.
  • the switch lock structure 740 further includes a second switch lock structure 744 slidably disposed in the second direction to the body body portion 1, the second switch lock structure 744 being located on a side of the first switch lock structure 742 away from the trigger member 722.
  • the release assembly 2 is alternatively disposed in a first position in which the working floor is mated with the drive mounting portion and a second position in which the work floor is separated from the drive mounting portion. When the release assembly 2 is switched from the second position to the first position, the first switch lock structure 742 is driven to slide away from the trigger member 722 to the trigger member 722.
  • the second switch lock structure 744 when the work floor is secured to the drive mounting portion, the second switch lock structure 744 is disengaged from the trigger member 722 such that the trigger member 722 can be resisted by the switch 724 while the switch 724 is in an actuatable state.
  • the second switch locking structure 744 when the working bottom plate is not fixed to the drive mounting portion and is to be removed by the body 1
  • the trigger member 722 is resisted to disengage the trigger member 722 from the switch 724, leaving the switch 724 in an unactuable state to prevent the electric work from being activated due to an erroneous operation during the disassembly process.
  • the trigger member 722 abuts the switch 724 to cause the switch 724 to be in an actuatable state.
  • the triggering member 722 is separated from the switch 724, so that the switch 724 is in an unactuatable state.
  • the first switch locking structure 744 can be disposed at one end of the triggering member 722 to provide an adjacent first opening 7422 and a first abutting portion 7424 , and the first opening 7422 Located at a side of the first abutting portion 7244 near the working bottom plate, the first switch locking structure moves relative to the body 1 in the second direction, so that the first opening 7422 or the first abutting portion 7424 is selectively locked with the first The structure corresponds.
  • the first switch locking structure 742 falls in the second direction, and the first abutting portion 7422 moves toward the working bottom plate to abut against the triggering member 722, so that the triggering member 722 cannot continue. Slide to the off position.
  • the first switch lock structure 742 moves upward (ie, away from the work bottom plate) under the abutment of the work bottom plate, so that the trigger member 722 can pass through the first opening 7422 in the first direction.
  • the first switch locking structure 742 can block the trigger member 722 to slide in the first direction to disengage the switch 724, thereby avoiding starting the sander without the connection work.
  • the control switch 720 can pass through the first opening 7422 of the first locking structure when the drive mounting portion is coupled to the working bottom plate.
  • one end of the unlocking wrench 222 is hinged to the body 1, and is rotated with the hinge point of the body 1 as a center of rotation.
  • the second switch locking structure 744 abuts the unlocking wrench 222 and moves away from the working floor under the driving of the unlocking wrench 222 to form a second opening 7442 corresponding to the first opening 7422.
  • the first opening 7422 communicates with the second opening 7442 to collectively form a moving channel.
  • the control switch 720 can pass through the moving channel to be in the connected position so that the sanding machine can be activated in a connected state.
  • the second switch locking structure 744 is disengaged from the unlocking wrench 222 and moves toward the working floor under the action of its own gravity, thereby contacting and resisting the body 1 , thereby contacting
  • the second opening 7442 is closed such that the trigger member 722 is blocked from passing through the first opening 7422 and cannot be resisted by the switch 724.
  • the switch locking structure 740 can lock or unlock the control switch 720 according to different conditions of the working bottom plate, so as to prevent the worker from starting the sanding machine without the fixed bottom plate of the body 1 causing a safety hazard.
  • the present embodiment is a DC hand-held sander 100b including a main body portion 1b and a battery pack 10 connected to the main body portion 1b.
  • the main body 1b includes a fuselage motor 809, and a power assembly; the body includes a head case 806, and a grip portion 800; a power assembly is disposed in the body head case 806; the power assembly includes a motor 809, and the motor 809 Powered to the drive assembly of the work floor 808, the motor 809 is vertically disposed along the height of the sander 100b.
  • the working bottom plate 808 is mounted on the head case 806, and the working bottom plate 808 of this embodiment is a round sand bottom plate.
  • the mounting portion 800 is disposed at one end of the grip portion 800 away from the head case 806, and the battery pack 10 is detachably connected to the mounting portion 800a.
  • the head case 806, the grip portion 800, and the battery pack 10 are sequentially disposed along the longitudinal direction of the sander 100b.
  • the body further includes a dust box 818 coupled to the head case 806.
  • the dust box 818 is located on the lower side of the grip portion 800 in the height direction of the sander, and the dust box 818 is substantially parallel to the extending direction of the grip portion 800.
  • the working bottom plate 808 is at the bottom end of the head case 806, the motor 809 and the driving assembly are housed in the head case 806, and the mounting portion 800a is located on the side of the body and is connected to the grip portion 800, so that the battery pack 10 and the motor 16 are Relatively disposed at both ends of the body grip portion 800, the grip is more convenient and ergonomic, and the stability of the operator using the hand-held sander 100b is improved.
  • the body may be an injection molded part, and has a shell shape, the front end is a head shell 806, and the rear end of the grip portion 800 is a mounting portion 800a.
  • the fuselage is composed of two half shells.
  • the motor 809 is a motor, and the driving assembly includes an eccentric drive shaft and is connected to the eccentric bearing and the balance block (not shown).
  • the motor 809 is received in the upper part of the head case 806, and the drive assembly is received in the lower part of the head case 806 to drive the motor 809.
  • the rotary output is passed to the work floor 808.
  • the grip portion 800 is provided with a switch assembly (not shown) for controlling the power supply of the battery pack 10 to the motor 809.
  • the operator's fingertip is located in the switch group under the normal grip mode. Near the pieces.
  • the mounting portion 800a includes a mounting groove for mounting the battery pack 10, and the battery pack 10 is snapped into the mounting groove to be fixed.
  • the mounting portion 800a also has an interface that interfaces with the battery pack 20 to achieve electrical conduction.
  • the mounting position is a battery cavity
  • the battery pack 10 is housed in the battery cavity
  • the battery pack 10 is installed in the mounting position through a rail or other connecting device. .
  • the work floor 808 is located at one end of the output shaft of the motor 809, and the mounting portion 800a is located at one side of the output shaft of the motor 809.
  • the working bottom plate 808 is located at the bottom end of the head case 806 and is located at one end of the output shaft of the motor 809, that is, the motor 809 is disposed in the up and down direction as shown in FIGS. 66 and 67.
  • the direction of gravity on the side of the head case 806 is downward in the vertical direction, thereby making the operator more comfortable to operate and less likely to feel fatigue.
  • the hand-held sander 100b has a center of gravity at the grip portion 800 or a portion of the head shell 806 near the grip portion.
  • the weight of the hand-held hand-held sander 100b is mainly concentrated on the following components: a motor, a drive assembly, a work floor, and the like.
  • the motor, the drive assembly, and the working bottom plate are vertically oriented, so that the center of gravity of the body is concentrated.
  • the mounting portion 800a for mounting the battery pack 10 is disposed opposite to the head case 806, so that after the battery pack 10 is attached to the mounting portion 800a, the center of the whole machine is concentrated toward the body grip portion 800, and the operator normally holds the situation.
  • the workpiece can be effectively pressed under the gravity of the hand-held sander 100b, thereby improving work efficiency and more comfortable operation.
  • the mounting direction of the battery pack 10 mounted to the mounting portion 800a is parallel to the axial direction of the output shaft of the motor 809.
  • the battery pack 10 has a battery pack main body extending longitudinally, and the longitudinal extension direction of the battery pack main body is parallel to the output shaft axis direction of the motor 809.
  • one end of the battery pack main body extending longitudinally is inserted into the mounting groove of the mounting portion 800a away from the other side of the head case 806 in a direction parallel to the axial direction of the output shaft of the motor 809.
  • the head shell 806 side and the mounting portion 800a side can be effectively balanced, and the center of the whole machine is concentrated toward the body grip portion 800 to ensure the operation comfort and stability.
  • the mounting direction of the battery pack 10 mounted to the mounting position may also be set at an angle to the output shaft axis direction of the motor 809.
  • the battery pack 10 is mounted on the security
  • the mounting direction of the mounting is inclined at an angle to the axial direction of the output shaft of the motor 809, that is, the vertical direction, forward or backward.
  • a reinforcing portion 828 is further disposed between the head case 806 and the mounting portion 800a.
  • the reinforcing portion 828 is a connecting rib, and the reinforcing portion 828 is spaced apart from the grip portion 800.
  • One end of the reinforcing portion 828 is connected to the lower end side of the head case 806, and the other end is connected to the lower end side of the mounting portion 800.
  • the reinforcing portion 828 is substantially parallel to the grip portion 800 to further enhance the connection strength and stability of the handheld hand-held sander 100b.
  • the head shell 806, the grip portion 800, the reinforcing portion 828, and the mounting portion 800a are all hollow housing structures, that is, the fuselage is formed by two half-shell shells. In this way, the cost is saved, the weight of the body is reduced, and the convenience of use is improved.
  • the working bottom plate 808 is at the bottom end of the head case 806, the motor 809 and the driving assembly are housed in the head case 806, and the mounting portion 800a is located at the end of the grip portion 800 on the side of the body, so that the battery pack 10 and the battery pack 10 are
  • the motor 809 is relatively separated, so that the operator can effectively maintain balance under normal grip, the operation is more comfortable, convenient, and ergonomic, and the stability of the operator using the hand-held sander is improved.
  • the drive assembly further includes a tension ring 805 coupled to the work bottom plate 808, a support plate 811 for supporting the tension ring 805, and a spring 8111 disposed on the support plate 811 for abutting the tension ring 805, wherein the tension is tightened
  • a hook surface 851 is disposed on the ring 805, and a hook surface 881 is disposed on the working bottom plate 808.
  • the hook surface 881 of the working bottom plate 808 does not hook the tension ring 805.
  • the hook surface 851, the tension ring 805 is at a high position under the action of the spring 8111.
  • the working bottom plate 808 is mounted to the head case 806, the hook surface 881 and the hook surface 851 are engaged with each other, and the tension ring 805 is moved downward.
  • the main body portion 1b of the sander 100b is further provided with a swinging assembly for connecting the sandblasting bottom plate to the head shell 806 when the working bottom plate 808 is replaced with a sanding bottom plate so that it can be used as a sand.
  • the swinging assembly includes a swinging foot 807a, a swinging plate 807 connected to the swinging foot 807a, and a limiting post 807b connected to the swinging plate 807, and the limiting post 807b is mated with the sanding bottom plate 808.
  • the swinging foot 807a, the swinging plate 807, and the limiting post 807b are an integral structure.
  • the sander 100b is provided with a control system including a top portion of the head case 806 and away from the grip portion 800.
  • An operation member at one end, the operation member of the embodiment is provided in the form of an operation wrench, specifically, a cam wrench 841 that is pivotally disposed, a side of the cam wrench 841 facing the head case 806 is provided with an abutting portion 412; and is disposed on the cam
  • a transmission between the wrench 841 and the tensioning ring 805 is used to convert and transmit the pivotal movement of the cam wrench 841 to move the tensioning ring 805 in the direction of the motor axis.
  • the transmission includes a cam abutment 842 disposed in the head housing 806 that abuts the cam portion 841a of the cam wrench 841, a pressure plate 843 that is pivotally moved by the cam abutment 842, and a drive shaft 843 that moves in the direction of the motor axis. Clamp block 844.
  • the cam abutment rod 842 is located on one side of the motor 809 in the head casing 806, and the cam abutment rod 842 is driven by the cam portion 841a of the cam wrench 841 to be movable in the direction of the motor axis in the head casing 806, thereby driving the pressure plate 843 to be opposite to the rotation shaft 432.
  • the head housing 806 is pivotally moved.
  • the movement of the pressure plate 843 drives the pressing block 844 to move in a direction parallel to the motor axis.
  • the bottom end surface 442 of the pressing block 844 abuts against the tensioning ring end surface 852 from the driving tension ring 805 along the motor.
  • the direction of the axis moves.
  • the pressure plate 843 of the embodiment is disposed to form an annular arm, and opposite sides of the annular arm are respectively provided with through holes 431.
  • the pair of pressing blocks 844 respectively pass through the protrusions 441 and the through holes 431 of the pressure plate 843 formed thereon. With the mating, the pressure block 844 is configured such that the movement of the pressure plate 843 can be more stably and evenly transmitted through the pressure block 844 to the tension ring 805.
  • the other side of the motor 809 opposite to the cam abutment 842 in the head case 806 is provided with a second interlocking member 803 extending in the height direction of the head case 806, and the second interlocking member 803 is movable in the direction of the motor axis;
  • the top of the interlocking member 803 is pivotally provided with a first interlocking member 802.
  • the second interlocking member 803 is substantially a rod-shaped member, and is provided with a blocking portion 831, a supporting portion 832, a positioning portion 833 and an abutting portion 835 respectively in the height direction, wherein the supporting portion 832 is sleeved with an elastic member 834.
  • the first interlocking member 802 is disposed substantially at the boundary between the head shell 806 and the body grip portion 800.
  • the first interlocking member 802 is substantially a rocker member, and includes a blocking portion 822 and an abutting portion respectively located at two ends of the pivot shaft. 821.
  • a main switch 804 is disposed in the grip portion 800, and the trigger trigger 801 is disposed on the grip portion 800 to facilitate the sliding operation of the operator when holding the sander 100b.
  • the side of the trigger trigger 801 facing the first interlocking member 802 is provided with an abutting portion for preventing the trigger trigger 801 from moving when abutting the first interlocking member 802.
  • the abutting portion includes substantially parallel extensions
  • the first extension portion 812 and the second extension portion 813 are provided.
  • the abutting portion of the embodiment is integrally provided with the trigger trigger 801, so that the structure is compact and the operation is convenient. Of course, those skilled in the art can also set the abutting portion and the trigger trigger 801 separately.
  • the second extension 813 is closer to the main switch 804 than the first extension 812, and the movement of the second extension 813 directly causes the main switch 804 to change between an open and a triggered state.
  • a first passage 133 for accommodating the first extension 812 and allowing movement therein is disposed within the grip portion 800, and a second passage 122 accommodating the second extension portion 813 and allowing movement therein is disposed.
  • the cam wrench 841 when the cam wrench 841 is pivoted to a position closed to the top of the head case 806, the abutting portion 412 of the cam wrench 841 abuts the top surface of the joint housing 806, and the abutting portion 821 of the first interlocking member 802 extends.
  • the contact portion 412 disposed in the cam wrench 841 is disposed in the card slot 824.
  • the second passage 122 is opened, and the first extension portion 812 that triggers the trigger is separated from the second interlocking member blocking portion 822.
  • the tension ring 5 is moved downward, and the second interlocking member 803 is moved downward by the elastic biasing force of the elastic member 834, at which time the second passage 122 is opened, and the second interlocking member is opened.
  • the positioning portion 833 of the 803 moves to abut against the ribs in the head case 806.
  • the opening of the first passage 133 and the second passage 122 allows the trigger trigger 801 to move in the direction indicated by the arrow M in the figure to trigger the main switch 804.
  • the first extension 812 that triggers the trigger abuts the first interlocking member 802 blocking portion 822, and accordingly, triggers the second extension of the trigger.
  • the portion 813 moves directly above the second interlocking member 803 and blocks the passage of the second interlocking member 803 to move upward.
  • the trigger trigger 801, the first interlocking member 802, and the cam wrench 841 are disposed such that when the main switch 804 is triggered to be activated, the blocking portion 822 and the abutting portion 821 of the second interlocking member 803 are restricted from moving, thereby enabling
  • the cam wrench 841 of the abutment portion 821 that is engaged by the card slot 824 is also unable to pivot to the open state, and the tension ring 805 cannot be depressed without dismantling the work substrate 808 from the drive assembly.
  • the first interlocking relationship is formed between the trigger trigger 801 and the first interlocking member 802 and the cam wrench 841, so that the working bottom plate 808 cannot be Separated from the tensioning ring 805 to ensure safe operation of the working floor 808.
  • the first interlocking member 802 pivots while disengaging the abutting portion 821 from the latching groove 824 of the cam wrench 841, so that the cam wrench 841 is unlocked and pivotable about its pivot in the direction indicated by the arrow R.
  • the cam wrench 841 is pivoted to the preset limit position, the pivotal movement of the cam wrench 841 is transmitted to the tensioning ring 805 through the transmission, that is, the tension ring 805 is depressed to move the working bottom plate 808 from the tensioning ring.
  • the tensioning ring 805 moves upward against the urging force of the elastic member 834 under the action of the spring 8111, thereby lifting the second interlocking member 803 upward, and the second interlocking is performed at this time.
  • the positioning portion 833 of the member 803 is moved to be separated from the inner rib of the head case 806, and the top of the second interlocking member 803 extends into the second passage 122 to block the second extending portion 813 from moving in the direction of the arrow M, that is, the working bottom plate
  • the trigger trigger 801 cannot be moved, so that the main switch 804 cannot be triggered. This creates a second interlocking relationship between the second interlocking member 803, the trigger trigger 801, and the tensioning ring 805.
  • the first interlocking relationship solves the problem that the sanding machine works to ensure the safe operation of the working bottom plate;
  • the second interlocking relationship embodies the premise that only the working bottom plate 808 is installed in place, that is, the working bottom.
  • the cam wrench 841 as the operating member can have a fixed pivoting shaft with respect to the rotation of the housing, and the pivoting shaft can be fixed, that is, the operating member can be reversed relative to the housing.
  • a sander according to still another embodiment of the present invention includes a casing 900, a motor disposed in the casing 900, and a grinding component disposed under the casing 900, that is, a working floor. 902 sanding the object.
  • the controller is disposed on the casing 900, and the motor is electrically connected to the controller and controlled by the controller, and the controller can control the rotation speed and steering of the motor.
  • the sander further includes a detecting sensor 905 for detecting whether the working bottom plate 902 is installed.
  • the detecting sensor 905 When the working bottom plate 902 is in the installed state, the detecting sensor 905 outputs a first detecting signal; when the working bottom plate 902 is in a non-installing state The detecting sensor 905 outputs a second detecting signal, and when the detecting sensor outputs the second detecting signal, the controller controls the motor not to operate.
  • the sander detects whether the working bottom plate 902 is installed by the detecting sensor 905, and controls whether the motor is started.
  • the motor is controlled to be inoperable, preventing the motor from starting abnormally, and driving the exposed output end to cause safety problems.
  • the detection sensor 905 includes a detection element on which the trigger element is mounted.
  • the detection sensor When the detection element senses the trigger element, the detection sensor outputs a first detection signal, at which time the motor can operate.
  • the detecting component When the detecting component does not sense the triggering component, the detecting sensor outputs a second detection signal, and the controller controls the motor not to operate.
  • the detecting element and the triggering element are contact triggers.
  • the detecting element is a micro switch and the trigger element is a trigger lever 966.
  • the triggering lever 966 can be in contact with the micro switch, and the micro switch can output the first detection signal, and the controller can control the motor to operate.
  • the trigger lever 966 is disengaged from the micro switch, and the micro switch outputs a second detection signal, at which time the controller controls the motor not to operate.
  • the micro switch is connected in series to the control circuit between the controller and the motor, and the control circuit is closed or opened by the micro switch.
  • the micro switch opens the control circuit.
  • the controller cannot control the motor to start running.
  • the sander is also provided with a main switch 909, which is electrically connected to the control circuit for controlling the on and off of the control circuit.
  • the micro switch is in an ON state, and the main switch that is turned on at this time, the control circuit is connected, and the control motor operates to drive the working bottom plate 902 to perform a sanding operation.
  • the micro switch is in the off state. At this time, even if the main switch is turned on, the control circuit is in the off state, and the motor cannot be operated at this time.
  • the position of the trigger lever 966 can also be placed on the housing 900 of the sander.
  • the sander further includes a driving disc 907, the output end of the motor is connected to the driving disc 907, the driving disc 907 is connected to the working bottom plate 902, and the triggering rod 966 is disposed between the swinging leg 906 of the sanding machine and the driving disc 907. And is disposed perpendicular to the working bottom plate 902.
  • the working bottom plate 902 When the working bottom plate 902 is installed, the working bottom plate 902 jacks up the triggering rod 966, thereby turning on the micro switch, and the micro switch outputs a first detection signal, that is, the control circuit is connected, and the controller can control the motor to operate.
  • the triggering rod 966 is reset, the micro switch is in an off state, the micro switch outputs a second detection signal, thereby turning off the control circuit, and the controller controls the motor not to operate.
  • a through hole is disposed in the housing 900, and one end of the guiding rod protrudes from the through hole, and the micro switch can be controlled to be turned on and off.
  • An elastic member such as a spring, is disposed on the guide rod to reset the guide rod away from the micro switch by elastic force after the working bottom plate 902 is unloaded.
  • the detection element and the trigger element can also be non-contact triggered.
  • the detecting element is a Hall sensor and the triggering element is a magnetic steel.
  • the Hall sensor detects the magnetic steel, the Hall sensor outputs a first detection signal, and the controller can control the motor to operate.
  • the Hall sensor does not detect the magnetic steel, the Hall sensor outputs a second detection signal, at which time the controller controls the motor not to operate.
  • the detecting sensor 500 may also be a non-contact type sensor such as an electromagnetic type, a photoelectric type, a differential transformer type, an eddy current type, a capacitive type, a reed switch type, or the like, and the detecting sensor detects whether the working bottom plate 902 is mounted.
  • the work floor 902 includes a sand plate, a grinding wheel, an abrasive belt, or a polishing wheel.
  • the sander is also provided with an identification sensor 908 that is electrically coupled to the controller.
  • the identification sensor 908 is used to identify whether the work substrate 902 is provided with an inductive element 981.
  • the identification sensor 908 outputs a first identification signal.
  • the identification sensor 908 outputs a second identification signal.
  • the controller is capable of controlling the output correspondingly according to the first identification signal and the second identification signal The first speed and the second speed of the motor.
  • the operating speed of the motor can be intelligently controlled. After the different types of working bottom plates 902 are replaced, manual adjustment is no longer needed.
  • the motor speed can be correctly adjusted to the reasonable speed required by the different working bottom plates 902 by the controller, which is intelligent, convenient, safe and reliable. efficient.
  • the first speed and the second speed are preset in the controller.
  • the identification sensor 908 can also recognize that different sensing elements generate different identification information, the identification sensor 800 transmits identification information to the controller, and the controller controls the operating speed of the motor based on different identification information.
  • the identification sensor 908 can be an RFID sensor, the sensing element is a radio frequency tag, the RFID sensor reads different radio frequency tags, transmits the identification information to the controller, and the controller controls the motor according to different identification information to make the motor run at different speeds.
  • the sand plate is a round sand plate or a plate sand plate. Install sand plates of different shapes to achieve multi-purpose grinding for different grinding conditions. The rotational speed required for the sand plate and the round sand plate during the grinding process is different. Generally, the round sand plate rotates at a high speed, and the plate sand plate rotates at a low speed. In order to realize the function of intelligent speed matching according to different sand plates, one of the round sand plate and the sand plate is provided with an inductive element 981 and one non-inductive element 981, and the identification sensor 908 can thus recognize the plate by the presence or absence of the sensing element 981.
  • the sand board is also a round sand board.
  • the identification sensor 908, controls the controller to change the preset speed of the motor to control the motor to operate at the appropriate speed required for different sand plates.
  • the sensing element 981 is preferably disposed on the slate plate. Because the circular sand plate has a circular symmetrical structure, when disposed on the circular sand plate, the circular sand plate needs to be rotated to a proper position so that the sensing element 981 is opposite to the identification sensor 908.
  • the plate 922 is relatively easy to mount when the sensing element 981 is opposite the identification sensor 908.
  • the second speed is greater than the first speed.
  • the recognition sensor 908 does not recognize the sensing element 981, the identification sensor 908 outputs the second identification signal, and the controller controls the motor to operate at the second speed for high speed operation.
  • the identification sensor 908 recognizes the sensing element 981
  • the identification sensor 908 outputs a first identification signal
  • the controller controls the motor to operate at the first speed to operate at a low speed.
  • the identification sensor 908 is preferably a Hall sensor and the sensing element 981 is a magnetic steel. When the Hall sensor detects the slab with magnetic steel, the Hall sensor outputs a first identification signal that causes the controller to control the motor speed to the first speed.
  • the identification sensor 908 can also be a photoelectric sensor, preferably a reflector type light.
  • the electric switch, the sensing element 981 is a reflector, when the round sand plate without the reflector is installed, the light emitted by the reflector type photoelectric switch is blocked by the round sand plate, and the second recognition of the reflective plate type photoelectric switch output is obtained.
  • the signal causes the controller to control the motor speed to a second speed.
  • the sander further includes a connecting post 982 having one end extending toward the working bottom plate 902, and the identification sensor 908 being disposed at an end of the connecting post 982 near the working bottom plate 902.
  • the sander further includes a drive plate 907, the output of which is connected to the drive plate 907, the drive plate 907 is connected to the work plate 902, and a connecting post 982 is disposed between the swing leg 906 of the sander and the drive plate 907.
  • the identification sensor 908 and the sensing element 981 are facing each other.
  • this embodiment is a modification of the sander safety interlock mechanism of the eleventh embodiment.
  • the safety interlock mechanism eliminates the second interlocking member and is electronically
  • the control device replaces the first interlocking member, and other identical structures are denoted by the same reference numerals and will not be described again.
  • the electronic control device in this embodiment is disposed in the housing, that is, the position of the first interlocking member in the eleventh embodiment, specifically, at the connection position of the grip portion and the head shell portion, and the electronic control device includes The first functional module and the second functional module.
  • the first functional module includes a position sensor for detecting the position of the operating member, that is, the cam wrench 841, and an electromagnet that generates magnetism after being energized. Further, a magnet 824a is provided at a portion where the free end of the cam wrench 841 is engaged with the first functional module.
  • the second functional module of this embodiment includes a linkage switch 822a in series with the switch 804. The linkage switch 822a and the switch 804 are simultaneously triggered by the trigger member 801.
  • the position sensor in this embodiment is provided in the form of a micro switch 821a.
  • the cam wrench 841 When the cam wrench 841 is in the first state of the first function module, the free end of the cam wrench 841 triggers the micro switch 821a; at this time, if the trigger member 801 is moved in the direction of the switch 804, the switch 804 can be triggered; Once the switch 804 is in the triggered state, the interlocking switch 822a is simultaneously triggered by the triggering member 801, so that the working circuit of the sander is turned on, and the electromagnet is energized to magnetically attract the magnet 824a of the free end of the cam wrench 841, thereby preventing the magnet.
  • the cam wrench 841 in the first state is switched to the second state in which the first function module 821a is separated.
  • the micro switch 821a When the cam wrench 841 is in the second state separated from the first function module, the micro switch 821a is in the off state, so even if the trigger member 801 is triggered, the circuit cannot be turned on, and therefore, the motor cannot be start up.
  • this embodiment is another variation of the sander safety interlock mechanism of the thirteenth embodiment.
  • the same structures are denoted by the same reference numerals and will not be described again.
  • the operating member 841a is slidably disposed with respect to the sander housing (not shown), and when the operating member 841a is slid from the first state to the second state in the direction indicated by the arrow M1 shown in FIG. 78, the triggering member 801a can be along the arrow The direction described by M2 triggers the switch 804a.
  • the operating member 841a overcomes the force of the spring 921 during the movement from the first state to the second state.
  • the switch 804a is in the trigger position, since one end of the trigger member 801a is engaged with the recess 912 of the operating member 841a, the operating member 841a is prevented from sliding from the second state to the first state.
  • the triggering member 801a when the state of the operating member 841a needs to be replaced, that is, when the second state is switched to the first state, the triggering member 801a needs to be released first, so that the triggering member 801a acts along with the arrow under the action of the elastic force.
  • the opposite direction of M2 is returned to the position where the switch 804a is opened, that is, one end of the trigger member 801a is disengaged from the groove 912 of the operating member 841a.
  • Fig. 80 when one end of the trigger member 801a is disengaged from the recess 912 of the operating member 841a, the operating member 841a is switched from the second state to the first state in the opposite direction to the arrow M1 under the restoring force of the spring 921. At this time, one end of the triggering member 801a abuts against one end of the operating member 841a, that is, the operating member 841a prevents the switch from being triggered by the triggering member 801a.

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Abstract

一种砂光机(100b)及其操作方法和工作底板(808)的拆装方法，砂光机(100b)包括壳体、设置于壳体内的马达(809)、控制马达(809)的开关机构、以及由马达(809)驱动旋转的驱动组件；以及与驱动组件配接的工作底板(808)；机身还包括互锁机构，互锁机构包括相对壳体活动设置的操作件(841)，操作件(841)可操作地在第一状态与第二状态之间转换，当操作件(841)处于第一状态时，互锁机构允许开关(804)被触发，并且当开关(804)处于触发状态时，操作件(841)被阻止从第一状态转换至第二状态；当操作件(841)处于第二状态时，互锁机构阻止开关(804)被触发。砂光机(100b)的安全性高，操作方便。

Description

砂光机及其操作方法和工作底板的拆装方法 技术领域
本发明涉及手持式电动磨削工具，尤其涉及一种砂光机，本发明还涉及一种砂光机工作底板的拆装方法和砂光机的操作方法。
背景技术
现有的砂光机包括圆砂机和平板砂等，其中圆砂机的输出轴驱动打磨底板作圆砂运动，即做公转加自转的规则的轨道运动，用于磨削较大量的材料。平板砂的打磨底板的回转运动被限制，因此，打磨底板作板砂运动，即只能够做公转规则的轨道运动，适用于磨削较小量的材料，例如用于精细加工或精加工。如果使用者希望拥有粗磨和细磨两种加工能力时，工作中需要准备两种工具(或底板)，工作中需要更换工具(或底板)才能完成相应的工况，使得砂光工作显得繁琐和复杂。
如美国专利公告号US6132300公开一种可更换工作底板的砂光机，其利用紧固件将工作底板与砂光机主体连接并锁紧在一起。工作底板在更换过程中，需要先将紧固件拧松直至能将工作底板从主体部拆卸或分离，再替换以新的工作底板与主体配接，然后再通过紧固件将工作底板与主体连接和紧固在一起。
上述现有技术中，可更换工作底板的操作过程中引入了除了工作底板与砂光机主体以外的第三个零部件，该零部件在操作过程中需要完全与砂光机主体脱离，因此容易丢失，并且在工作底板安装过程中，需要将其再次拧紧直至紧固到位，安装过程非常繁琐、工作效率低。
另外上述现有技术中，工作底板在更换过程中，如果操作者无意识地碰到触发件而开关，马达会带动输出轴高速旋转，此时容易伤到手持工作底板的操作者，因此，这种砂光机的安全性比较低。
基于此，有必要对现有技术中工作底板更换过程的可能产生的安全性问题进行改进。
发明内容
针对现有技术的不足，本发明提供一种使用安全砂光机。
本发明解决其技术问题所采用的技术方案是：一种砂光机包括：机身，所述机身包括壳体、设置于所述壳体内的马达、控制马达的开关机构、以及由马达驱动旋转的驱动组件；以及与驱动组件配接的工作底板；所述机身还包括互锁机构，所述互锁机构包括相对壳体活动设置的操作件，所述操作件可操作地在第一状态与第二状态之间转换，当所述操作件处于第一状态时，所述互锁机构允许所述开关被触发，并且当所述开关处于触发状态时，所述操作件被阻止从第一状态转换至第二状态；当所述操作件处于第二状态时，所述互锁机构阻止所述开关被触发。
由于砂光机采用了互锁机构，使得工作底板没有安装到位时，开关无法被启动，并且在开关启动时，工作底板无法被拆卸，从而使得砂光机在使用过程中，包括工作底板安装过程的安全性。
优选地，所述开关机构包括触发件以及开关，所述互锁机构包括与操作件可选择配接或者分离的第一互锁件；当所述操作件处于第一状态时，所述第一互锁件与操作件配接，所述第一互锁件允许所述触发件触发所述开关，并且当所述开关处于触发状态时，所述操作件被阻止与第一互锁件分离；当所述操作件处于第二状态时，所述第一互锁件与操作件分离，所述第一互锁件阻止触发件触发所述开关。
优选地，所述互锁机构还包括能够与第一互锁件抵接或分离的抵接件，当所述操作件处于第一状态时，所述抵接件与第一互锁件分离，当所述操作件处于第二状态时，所述抵接件与第一互锁件抵接，从而阻止所述触发件触发所述开关。
优选地，所述抵接件与所述触发件一体设置。
优选地，所述操作件相对所述壳体翻转设置。
优选地，所述操作件设置成凸轮扳手，所述凸轮扳手包括手柄部以及凸轮部，所述凸轮部与所述壳体连接，所述手柄部包括一自由端。
优选地，所述壳体包括收容马达的头壳部，以及设置手柄的握持部，所述操作件设置于所述头壳部，所述触发件设置于所述握持部。所述触发件沿握持 部的延伸方向可滑动地设置，当所述第一互锁件与操作件配接时，所述第一互锁件允许所述触发件滑动；当所述第一互锁件与操作件分离时，所述第一互锁件阻止所述触发件滑动。
优选地，所述第一互锁件相对所述壳体枢转设置，所述互锁机构还包括与所述第一互锁件抵接的弹性件，当所述操作件与第一互锁件配接时，所述第一互锁件克服所述弹性件偏压力由初始位置枢转至工作位置；当所述操作件与第一互锁件分离，所述第一互锁件受弹性件的偏压力作用由工作位置回复至初始位置。
优选地，所述第一互锁件包括能够与抵接件抵接的第一端，以及能够与操作件啮合的第二端；当所述第一端与抵接件抵接时，所述第一互锁件阻止触发件沿第一方向运动；当所述第二端与操作件啮合时，所述第一互锁件允许触发件沿第一方向运动从而触发所述开关，并且当开关处于触发状态时，所述第一互锁件阻止所述操作件枢转。所述第二端设置有抵触部，所述操作件上对应抵触部设置有卡槽，当所述第二端与操作件啮合时，所述抵触部伸入所述卡槽。
优选地，所述工作底板包括至少两种不种形状的底板，所述底板可选一的与所述驱动组件分离或者配接。
另一种可选择的技术方案是：一种砂光机包括：机身，所述机身包括壳体、设置于所述壳体内的马达、控制马达的开关机构、以及由马达驱动旋转的驱动组件，所述马达具有马达轴线；以及工作底板，所述工作底板可选择与所述驱动组件分离或者配接；所述砂光机还包括互锁机构，所述互锁机构包括相对壳体活动设置的操作件，所述操作件可操作地在第一状态与第二状态之间转换，当所述操作件处于第一状态时，所述互锁机构允许所述开关被触发，并且当所述开关处于触发状态时，所述工作底板被阻止与机身分离或者配接；当所述操作件处于第二状态时，所述互锁机构允许所述工作底板与机身分离或者配接，并且阻止所述开关被触发。
优选地，所述开关机构包括触发件以及开关，所述互锁机构包括与操作件可选择配接或者分离的第一互锁件；当所述操作件处于第一状态时，所述第一互锁件与操作件配接，所述第一互锁件允许所述触发件运动以触发所述开关， 并且当所述开关处于触发状态时，所述操作件被阻止与第一互锁件分离；当所述操作件处于第二状态时，所述第一互锁件与操作件分离，所述第一互锁件阻止触发件运动。
优选地，所述互锁机构还包括能够与第一互锁件抵接或分离的抵接件，当所述操作件处于第一状态时，所述抵接件与第一互锁件分离，当所述操作件处于第二状态时，所述抵接件与第一互锁件抵接，从而阻止所述触发件触发所述开关。
优选地，所述抵接件与所述触发件一体设置。
优选地，所述第一互锁件能够在与操作件分离的初始位置和与操作件配接的工作位置间枢转运动。所述第一互锁件的枢转轴线与第一互锁件相垂直。
优选地，第一互锁件包括靠近触发件的第一端，以及靠近操作件的第二端，当所述第一互锁件处于初始位置时，所述第一端与触发件抵接以阻止触发件运动；当所述第一互锁件处于工作位置时，所述第一端与触发件脱开抵接以允许触发件运动从而触发所述开关，所述第二端与操作件啮合。当所述触发件运动至触发开关的位置，所述触发件与第一端抵接以阻止第一互锁件运动。
优选地，所述互锁机构还包括设置于触发件与工作底板之间的第二互锁件，所述第二互锁件能够在靠近触发件的第一位置和远离触发件的第二位置之间运动；当所述工作底板与机身配接时，所述第二互锁件处于第二位置，第二互锁件允许触发件运动；当所述工作底板与机身分离时，所述第二互锁件处于第一位置以阻止所述触发件运动。
优选地，所述第二互锁件在第一位置与第二位置之间作线性运动。所述第二互锁件作平行于马达轴线的性线运动。所述第二互锁件平行于马达轴线设置。
优选地，所述壳体包括收容马达的头壳部，以及设置手柄的握持部，所述操作件设置于优选地，所述头壳部，所述触发件设置于所述握持部。所述触发件沿握持部的延伸轴线滑动设置。
优选地，所述操作件在第一状态与第二状态转换时相对所述壳体枢转设置。所述操作件的枢转轴线与所述操作件相垂直。
优选地，所述操作件设置成凸轮扳手，所述凸轮扳手包括手柄部以及凸轮 部，所述凸轮部与所述壳体枢轴连接。
优选地，所述机身包括由马达驱动旋转的驱动组件，所述驱动组件包括用于与工作底板配接的张紧环，所述操作件驱动张紧环作线性运动。所述机身还包括连接操作件与张紧环的传动装置，通过所述传动装置，所述操作件驱动张紧环作平行于马达轴线方向的性线运动。
优选地，所述驱动组件进一步包括用于支撑所述张紧环的支撑盘，以及设置于张紧环与支撑盘之间的弹性件，所述弹性件为张紧环提供向所述高位方向运动的偏压力。
优选地，所述操作件与第一互锁件配接时，所述张紧环处于靠近马达的高位；所述操作件与第一互锁件分离时，所述所述张紧环处于远离马达的低位，从而使所述工作底板可操作地与所述张紧环配接或者分离。
优选地，所述张紧环上设置有第一配接件，所述工作底板上设置有用于与第一配接件卡接的第二配接件，当所述工作底板与所述张紧环配接，所述第一配接件与第二配接件沿马达轴轴线方向至少部分重叠。
优选地，当所述操作件由与第一互锁件分离的打开位置向与第一互锁件配接的闭合位置枢轴时，所述张紧环由低位运动至高位，从而能够使得与张紧环配接的工作底板锁紧于所述机身。
本发明的另一个目的在于提供一种砂光机工作底板的操作方便且快速的安装方法。
本发明解决其技术问题所采用的技术方案是：一种砂光机的工作底板安装方法，包括以下操作步骤：提供一种砂光机机身，所述机身包括壳体、设置于所述壳体内的马达、互锁机构，所述马达具有马达轴线，所述互锁机构包括能够在第一状态与第二状态之间转换的操作件，当所述操作件处于第一状态时，所述互锁机构允许所述开关被触发，当所述操作件处于第二状态时，所述互锁机构阻止所述开关被触发；提供一种工作底板，所述工作底板能够与所述机身配接；操作所述操作件使之处于第二状态；将所述工作底板沿马达轴线方向移动至与机身配接；操作所述操作件使之处于第二状态。
优选地，操作所述操作件为枢转所述操作件。
本发明的再一个目的在于提供一种砂光机工作底板的操作方便且快速的拆卸方法。
本发明解决其技术问题所采用的技术方案是：一种砂光机的工作底板拆卸方法，包括以下操作步骤：提供一种砂光机，所述砂光机包括机身、以及与机身连接的工作底板，所述机身包括壳体、设置于所述壳体内的马达、互锁机构，所述马达具有马达轴线，所述互锁机构包括能够在第一状态与第二状态之间转换的操作件，当所述操作件处于第一状态时，所述互锁机构允许所述开关被触发，当所述操作件处于第二状态时，所述互锁机构阻止所述开关被触发；操作所述操作件使之处于第二状态；将所述工作底板沿马达轴线方向移动至与所述机身分离。
优选地，操作所述操作件为枢转所述操作件。
本发明还提供了一种使用方便的砂光机。
本发明解决其技术问题所采用的技术方案是：一种砂光机，包括主体部、以及与所述主体部连接的工作底板，所述主体部包括机壳、收容于机壳的马达、以及由马达驱动的驱动组件，所述马达设有马达轴，所述驱动组件能够绕偏心轴线和马达轴轴线或者绕偏心轴线和与马达轴轴线呈角度的输出轴轴线旋转，所述工作底板可拆卸地与驱动组件配接，所述驱动组件包括第一卡接件，所述工作底板包括与第一卡接件对应设置的第二卡接件，所述第一卡接件与第二卡接件沿输出轴轴向相互卡接，从而阻止工作底板与驱动组件分离，第一卡接件与第二卡接件沿输出轴向相互脱开，从而允许工作底板与驱动组件分离。
优选地，所述第一卡接件包括若干个绕所述偏心轴线周向设置的第一卡接部。
优选地，所述驱动组件还包括输出头本体，第一卡接件能够相对输出头本体在第一位置与第二位置间运动，在第一位置，第一卡接件能够与第二卡接件卡接，在第二位置，第一卡接件允许第二卡接件与之脱开。
优选地，第一卡接件沿输出轴轴向运动。一种可选择地方案是：所述第一卡接件相对输出头本体枢转运动。另一种可选择地方案是：所述第一卡接件沿输出轴径向运动。
优选地，所述第一卡接件与输出头本体之间设置有弹性元件，所述弹性元件驱动第一卡接件由第二位置运动至第一位置。种可选择地方案是：所述第一卡接件为弹性件，所述弹性件由第二位置自动回复至第一位置。
优选地，所述工作底板包括底板主体，所述第二卡接件能够相对底板主体运动，从而能够与第一卡接件卡接和脱开。所述第二卡接件能够沿马达轴径向运动。所述第二卡接件为弹性件。
优选地，所述砂光机还包括释放组件，所述释放组件能够在拆装模式与工作模式之间转换，以允许工作底板从主体部拆卸和阻止工作底板与主体部分离。所述释放组件处于拆装模式，第一卡接件与第二卡接件能够相互脱开，所述释放组件处于工作模式，第一卡接件与第二卡接件能够相互卡接。所述释放组件包括控制件、以及由控制件驱动的传动件，通过所述传动件，所述控制件可操作地控制所述第一卡接件或第二卡接件运动。所述控制件至少部分设置于机壳的外侧。
一种可选择地方案是：所述释放组件包括设置于所述工作底板的操作部和定位件，所述操作部可操作地控制定位件在锁定位置和释放位置间移动，定位件处于锁定位置，第一卡接件与第二卡接件能够相互卡接，定位件处于释放位置，第一卡接件与第二卡接件能够相互脱开。
优选地，所述工作底板与驱动组件沿马达轴径向无间隙配接。所述工作底板设置有第一锥面，所述驱动组件上设置第二锥面，工作底板与驱动组件配接时，第一锥面与第二锥面契合。所述第一锥面为内圆周面，所述第二锥面为外圆锥面。
优选地，所述砂光机包括可选择地与驱动组件配接或者分离的锁定件，当驱动组件与锁定件配接时，驱动组件相对机壳静止，当驱动组件与锁定件分离时，驱动组件处于能够相对机壳旋转。所述锁定件设置在机壳内，所述砂光机设置有用于控制马达启动的开关扳机，所述锁定件与所述开关扳机联动设置。
优选地，所述工作底板包括第一底板和第二底板。所述第一底板为圆砂底板，所述第二底板为板砂底板。所述砂光机进一步包括相对机壳固定设置的摆动脚，所述第一底板与第二底板中至少一个设置有与摆动脚配接的连接部。
本发明解决其技术问题所采用的另一种技术方案是：一种砂光机，包括主体部、以及与所述主体部可拆卸连接的工作底板，所述主体部包括机壳、收容于机壳的马达、以及由马达驱动的驱动组件，所述马达具有马达轴，所述驱动组件能够绕偏心轴线和马达轴轴线或者绕偏心轴线和与马达轴轴线呈角度的输出轴轴线旋转，所述工作底板可拆卸地与驱动组件配接或分离，所述驱动组件包括第一卡接件，所述工作底板包括与所述第一卡接件对应设置的第二卡接件，所述工作底板与驱动组件配接时，第一卡接件与第二卡接件沿输出轴轴向无间隙配合。
优选地，所述工作底板与驱动组件配接时，第一卡接件与第二卡接件沿输出轴轴向相互卡接。
优选地，所述驱动组件与工作底板沿输出轴径向无间隙配合。所述工作底板设置有第一锥面，所述驱动组件上设置第二锥面，工作底板与驱动组件配接时，第一锥面与第二锥面契合。所述第一锥面为内圆周面，所述第二锥面为外圆锥面。
优选地，所述驱动组件还包括输出头本体，第一卡接件能够相对输出头本体在第一位置与第二位置间运动，在第一位置，第一卡接件能够与第二卡接件卡接，在第二位置，第一卡接件允许第二卡接件与之脱开。
优选地，所述工作底板包括底板主体，所述第二卡接件能够相对底板主体运动，从而能够与第一卡接件卡接和脱开。
本发明的另一个目的在于提供一种砂光机工作底板的快速安装方法。
本发明解决其技术问题所采用的技术方案是：一种砂光机的工作底板安装方法，包括以下操作步骤：提供一种具有机壳、马达、驱动组件的砂光机主体部，所述马达设有马达轴，所述驱动组件由马达驱动能够绕偏心轴线旋转和马达轴轴线或者与马达轴轴线呈角度的输出轴轴线旋转，所述驱动组件包括第一卡接件，所述工作底板包括与第一卡接件对应设置的第二卡接件；提供一种可拆卸地与驱动组件配接的工作底板；将工作底板相对驱动组件沿输出轴轴向移动至与驱动组件配接。
优选地，所述驱动组件还包括输出头本体，第一卡接件能够相对输出头本 体在第一位置与第二位置间运动，所述安装方法还包括以下操作步骤：在工作底板相对驱动组件沿输出轴轴向移动之前将第一卡接件由第一位置运动至第二位置；在工作底板相对驱动组件沿输出轴轴向移动至与驱动组件配接之后，将第一卡接件由第二位置移动至第一位置使第一卡接件与第二卡接件轴向卡接。
所述第一卡接件由第一位置运动至第二位置由至少部分设置于机壳外部的控制件驱动控制。
一种可选择地技术方案是：将工作底板相对驱动组件沿马达轴轴向移动，使第一卡接件与第二卡接件轴向卡接，工作底板与主体部配接。
另一中可选择地技术方案是：将工作底板相对驱动组件沿输出轴轴向移动，使工作底板与驱动组件配接；将工作底板相对驱动组件旋转，使两者轴向位置相对锁定。
本发明的再一个目的在于提供一种砂光机工作底板的快速拆卸方法。
本发明解决其技术问题所采用的技术方案是：一种砂光机的工作底板拆卸方法，包括以下操作步骤：提供一种砂光机，所述砂光机包括具有机壳、马达、驱动组件的砂光机主体部，以及与驱动组件配接在一起的工作底板，所述马达设有马达轴，所述驱动组件由马达驱动能够绕偏心轴线旋转和马达轴轴线或者与马达轴轴线呈角度的输出轴轴线旋转，所述驱动组件包括第一卡接件，所述工作底板包括与第一卡接件对应设置的第二卡接件；将工作底板相对驱动组件沿输出轴轴向移动至与驱动组件分离。
优选地，所述驱动组件还包括输出头本体，第一卡接件能够相对输出头本体在第一位置与第二位置间运动，所述拆卸方法还包括以下操作步骤：在工作底板相对驱动组件沿输出轴轴向移动至与驱动组件分离之前，将第一卡接件由第一位置运动至第二位置使第一卡接件与第二卡接件轴向脱开。所述第一卡接件由第一位置运动至第二位置由至少部分设置于机壳外部的控制件驱动控制。
一种可选择地技术方案是：绕工作底板中心线旋转工作底板；使工作底板相对驱动组件沿输出轴轴向分离。
优选地，在旋转工作底板之前还包括以下步骤：通过设置于工作底板上的操作部解除对工作底板的位置锁定。
本发明由于采用了上述技术方案，工作底板的第一卡接件与砂光机驱动组件的第二卡接件能够实现沿输出轴轴向的卡接与脱开，从而使工作底板能方便、快速地实现从砂光机主体部拆卸，或者安装以另一个、或不同功能的工作底板，并且操作步骤简单。在工作底板与驱动组件配接时，工作底板设置的第一锥面与驱动组件上设置的第二锥面契合，从而使得工作底板在轴向吊紧力的作用下，可以很好的去除工作底板与驱动组件的轴向和径向间隙，使得两者在旋转时基本保持同轴且同步性好，减少两者之间由于间隙而导致的不同步产生额外的能量损耗，工作效率明显提升。
本发明还提供的使用方便的砂光机，另一种可选择的方案技术方案是：一种砂光机，包括主体部、以及与所述主体部连接的工作底板，所述主体部包括机壳、收容于机壳的马达、由马达驱动绕偏心轴线旋转的驱动组件，以及相对机壳固定设置的摆动脚，所述工作底板可拆卸地与驱动组件配接，所述驱动组件包括第一卡接件，所述工作底板包括与所述第一卡接件对应设置的第二卡接件，所述工作底板与驱动组件配接时，第一卡接件与第二卡接件至少沿输出轴轴向互相卡接。
优选地，所述驱动组件与工作底板沿输出轴径向无间隙配合。所述工作底板设置有第一锥面，所述驱动组件上设置第二锥面，工作底板与驱动组件配接时，第一锥面与第二锥面契合。所述第一锥面为内圆周面，所述第二锥面为外圆锥面。
优选地，所述第一卡接件包括若干个绕所述偏心轴线周向设置的第一卡接部。
优选地，所述驱动组件还包括输出头本体，第一卡接件能够相对输出头本体在第一位置与第二位置间运动，在第一位置，第一卡接件能够与第二卡接件卡接，在第二位置，第一卡接件能够与第二卡接件脱开。
优选地，所述第一卡接件沿输出轴轴向运动。一种可选择地方案中，所述第一卡接件相对输出头本体枢转运动。另一种可选择地方案中，所述第一卡接件沿输出轴径向运动。
优选地，所述第一卡接件与输出头本体之间设置有弹性元件，所述弹性元 件驱动第一卡接件由第二位置运动至第一位置。
优选地，所述第一卡接件为弹性件，所述弹性件由第二位置自动回复至第一位置。
优选地，所述工作底板包括底板主体，所述第二卡接件能够相对底板主体运动，从而能够与第一卡接件卡接和脱开。
优选地，所述第二卡接件能够沿输出轴径向运动。所述第二卡接件为弹性件。
优选地，所述砂光机还包括释放组件，所述释放组件能够在拆装模式与工作模式之间转换，以允许工作底板从主体部拆卸和阻止工作底板与主体部分离。所述释放组件处于拆装模式，第一卡接件与第二卡接件能够相互脱开，所述释放组件处于工作模式，第一卡接件与第二卡接件能够相互卡接。所述释放组件包括控制件、以及由控制件驱动的传动件，通过所述传动件，所述控制件可操作地控制所述第一卡接件或第二卡接件运动。所述控制件至少部分设置于机壳的外侧。
一种可选择地方案中，所述释放组件包括设置于所述工作底板的操作部和定位件，所述操作部可操作地控制定位件在锁定位置和释放位置间移动，定位件处于锁定位置，第一卡接件与第二卡接件能够相互卡接，定位件处于释放位置，第一卡接件与第二卡接件能够相互脱开。
优选地，所述砂光机包括可选择地与驱动组件配接或者分离的锁定件，当驱动组件与锁定件配接时，驱动组件相对机壳静止，当驱动组件与锁定件分离时，驱动组件处于能够相对机壳旋转。所述锁定件设置在机壳内，所述砂光机设置有用于控制马达启动的开关扳机，所述锁定件与所述开关扳机联动设置。
优选地，所述工作底板包括第一底板和第二底板。所述第一底板为圆砂底板，所述第二底板为板砂底板。所述第一底板与第二底板中至少一个设置有与摆动脚配接的连接部。
本发明解决其技术问题所采用的另一种技术方案是：一种砂光机，包括主体部、以及与所述主体部连接的工作底板，所述主体部包括机壳、收容于机壳的马达、由马达驱动绕偏心轴线旋转的驱动组件，以及相对机壳固定设置的摆 动脚，所述工作底板可拆卸地与驱动组件配接，所述驱动组件包括第一卡接件，所述工作底板包括与所述第一卡接件对应设置的第二卡接件，所述工作底板与驱动组件配接时，第一卡接件与第二卡接件至少沿输出轴轴向无间隙的配合。
本发明的另一个目的在于提供一种砂光机工作底板的快速安装方法。
本发明解决其技术问题所采用的一种技术方案是：一种砂光机的工作底板安装方法，，包括以下操作步骤：提供一种具有机壳、马达、驱动组件的砂光机主体部，所述马达设有马达轴，所述驱动组件由马达驱动能够绕偏心轴线旋转和马达轴轴线或者与马达轴轴线呈角度的输出轴轴线旋转，所述驱动组件包括第一卡接件，所述工作底板包括与第一卡接件对应设置的第二卡接件；提供一种可拆卸地与驱动组件配接的工作底板；将工作底板相对驱动组件沿输出轴轴向移动至与驱动组件配接。
优选地，所述驱动组件还包括输出头本体，第一卡接件能够相对输出头本体在第一位置与第二位置间运动，所述安装方法还包括以下操作步骤：在工作底板相对驱动组件沿输出轴轴向移动之前将第一卡接件由第一位置运动至第二位置；在工作底板相对驱动组件沿输出轴轴向移动至与驱动组件配接之后，将第一卡接件由第二位置移动至第一位置使第一卡接件与第二卡接件轴向卡接。
优选地，所述砂光机包括控制件，所述拆卸方法还包括以下操作步骤：操作控制件，使第一卡接件由第一位置运动至第二位置。
一种可选择的方案，将工作底板相对驱动组件沿输出轴轴向移动，使第一卡接件与第二卡接件轴向卡接，工作底板与主体部配接。
另一种可选择地方案，将工作底板相对驱动组件沿输出轴轴向移动，使工作底板与驱动组件配接，将工作底板相对驱动组件旋转，使两者轴向位置相对锁定。
本发明的再一个目的在于提供一种砂光机工作底板的快速拆卸方法。
本发明解决其技术问题所采用的技术方案是：一种砂光机的工作底板拆卸方法，其特征在于，包括以下操作步骤：提供一种砂光机，所述砂光机包括具有机壳、马达、驱动组件的砂光机主体部，以及与驱动组件配接在一起的工作底板，所述马达设有马达轴，所述驱动组件能够绕偏心轴线和马达轴轴线或者 绕偏心轴线和与马达轴轴线呈角度的输出轴轴线旋转，所述驱动组件包括第一卡接件，所述工作底板包括与第一卡接件对应设置的第二卡接件；将工作底板相对驱动组件沿输出轴轴向移动至与驱动组件分离。
优选地，所述驱动组件还包括输出头本体，第一卡接件能够相对输出头本体在第一位置与第二位置间运动，所述拆卸方法还包括以下操作步骤：在工作底板相对驱动组件沿输出轴轴向移动至与驱动组件分离之前，将第一卡接件由第一位置运动至第二位置使第一卡接件与第二卡接件轴向脱开。
优选地，所述砂光机包括控制件，所述拆卸方法还包括以下操作步骤：操作所述控制件，使第一卡接件由第一位置运动至第二位置。
一种可选择地方案中，绕工作底板中心线旋转工作底板；使工作底板相对驱动组件沿输出轴轴向分离。所述工作底板上设置有操作部，所述拆卸方法还包括以下操作步骤：在工作底板旋转之前操作所述操作部，使工作底板解除与主体部的位置锁定。
本发明由于采用了上述技术方案，工作底板的第一卡接件与砂光机驱动组件的第二卡接件能够实现至少沿输出轴轴向方向的无间隙卡接与脱开，从而使工作底板能方便、快速地实现从砂光机主体部拆卸，或者安装以另一个、或不同功能的工作底板，并且操作步骤简单。在工作底板与驱动组件配接时，工作底板设置的第一锥面与驱动组件上设置的第二锥面契合，从而使得工作底板在轴向吊紧力的作用下，可以很好的去除工作底板与驱动组件的轴向和径向间隙，使得两者在旋转时基本保持同轴且同步性好，减少两者之间由于间隙而导致的不同步产生额外的能量损耗，工作效率明显提升。
本发明还提供一种安装方便连接牢固的砂光机。所采用的另一种技术方案是：一种砂光机，包括驱动组件与可拆卸地配接于所述驱动组件的工作底板，所述驱动组件包括第一卡接件，所述工作底板包括与所述第一卡接件对应设置的第二卡接件，所述第二卡接件可相对所述第一卡接件运动以与所述第一卡接件卡接或分离；
其中，所述第一卡接件与所述第二卡接件在垂直于所述第一卡接件与所述第二卡接件相对运动方向的平面上的正投影至少部分重合，以阻止当所述驱动 组件与所述工作底板处于配接状态时，所述第一卡接件与所述第二卡接件向相反方向运动而分离。
上述砂光机，第一卡接件与第二卡接件在垂直于第一卡接件与第二卡接件相对运动方向的平面上的正投影重合，因此驱动组件与工作底板可通过第一卡接件与第二卡接件连接，避免第一卡接件与第二卡接件向相反方向移动而相互脱离，从而使工作底板可稳固地安装于驱动组件上。
在其中一个实施例中，所述第一卡接件包括第一卡接面，所述第二卡接件包括与所述第一卡接面平行设置的第二卡接面，当所述工作底板与所述驱动组件处于配接状态时所述第一卡接面与所述第二卡接面在互相施加的压力作用下至少部分重叠。
在其中一个实施例中，所述第一卡接件包括第一卡接主体与位于所述第一卡接主体一端并凸设于所述第一卡接主体一侧的第一卡接部，所述第一卡接面形成于所述第一卡接部靠近所述第一卡接主体一侧，且自所述第一卡接部远离所述第一卡接主体一侧至所述第一卡接主体倾斜延伸；所述第二卡接件包括第二卡接主体与设于所述第二卡接主体一侧并凸设于所述第二卡接主体一侧的第二卡接部，所述第二卡接面形成于所述第二卡接部靠近所述第二卡接主体的一侧，且自所述第二卡接部远离所述第二卡接主体一侧至所述第二卡接主体倾斜延伸。
在其中一个实施例中，所述驱动组件包括张紧环，多个所述第一卡接件设于所述张紧环上并沿所张紧环周向间隔设置，多个所述第二卡接件在所述工作底板上周向间隔设置以与所述第一卡接件对应。
在其中一个实施例中，所述驱动组件还包括套设于所述张紧环的输出头本体，所述输出头本体上沿周向间隔设有多个突出件，相邻所述突出件共同形成卡持空间，所述第一卡接件与所述第二卡接件分别从所述卡持空间的两端伸入卡持空间内，并在所述卡持空间的作用下相互卡接。
在其中一个实施例中，所述卡持空间包括第一卡持空间与第二卡持空间，所述第一卡持空间的尺寸与所述第一卡接件和所述第二卡接件卡接时的尺寸匹配，所述第二卡持空间的尺寸大于所述第一卡持空间；当所述第一卡接部与所 述第二卡接部均位于所述第一卡持空间时，所述第一卡接面与所述第二卡接面在所述第一卡持空间的作用下紧密接触以使所述第一卡接件与所述第二卡接件相互卡接；当所述第一卡接部与所述第二卡接部均位于所述第二卡持空间时，所述第二卡接件可相对所述第一卡接件运动以相互卡接或分离。
在其中一个实施例中，所述突出件包括第一段与尺寸小于所述第一段的第二段，两个相邻所述突出件的所述第一段共同形成所述第一卡持空间，相邻所述突出件的第二段形成尺寸大于所述第一卡持空间的第二卡持空间。
在其中一个实施例中，所述突出件的所述第一段与所述第二段之间形成有第一导向面，所述第一导向面自所述第二段向所述第一段逐渐向外倾斜延伸，所述第二卡接件的所述第二卡接部设有可与所述第一导向面配合的第二导向面，所述第二卡接件可通过所述第二导向面沿所述第一导向面滑动以滑入所述第一卡持空间内或从第一卡持空间内脱出。
在其中一个实施例中，相邻的两个所述第一卡接件之间还分别设置有限位部，所述第一卡接件与相邻所述限位部之间形成间隙，所述输出轴本体设有自所述突出件向靠近所述限位部一端延伸设有凸台部，所述凸台部可限位于所述间隙中，以使所述张紧环嵌套于所述输出轴本体上。
在其中一个实施例中，所述砂光机还包括弹性件，所述弹性件位于所述输出头本体与所述张紧环之间，用于为所述第一卡接面提供施加于所述第二卡接面上的压力。
本发明另一发明目的是提供一种使用方便的砂光机。其技术方案是这样实现的：一种砂光机，包括机身，包括输出轴；驱动组件，包括输出头本体与驱动安装部，所述输出头本体与所述输出轴配接，所述驱动安装部连接于所述输出头本体靠近机身的一侧；工作底板，可选择与驱动安装部配接或者脱开；以及释放组件，所述释放组件可操作地带动所述驱动安装部相对于所述输出头本体移动，以使所述驱动安装部在安装状态与拆卸状态之间切换，在安装状态时，工作底板能够与驱动安装部配接，在拆卸状态时工作底板能够在与驱动安装部脱开而分离。
上述砂光机，通过释放组件实现驱动安装部相对输出头本体移动，使驱动 安装部在安装状态与拆卸状态之间切换，在安装状态时工作底板能够与驱动安装部配接，在拆卸状态时工作底板能够与驱动安装部脱开而分离。如此，实现了驱动安装部快速实现状态切换，方便底板的更换，为操作人员带来了便利。
优选地，砂光机还包括能够将驱动安装部保持在拆卸状态的保持机构。
一种实施方式中，保持机构包括设置在释放组件的锁定件，以及设置于机身的卡持件。
一种实施方式中，释放组件包括传动件，以及与所述传动件配接的控制件，所述传动件设置于所述控制件与所述驱动安装部之间，并可在所述控制件的驱动下带动所述驱动安装部轴向移动。
优选地，控制件与传动件通过凸轮凹槽配合，所述控制件相对机身转动能够驱动传动件沿所述输出轴轴线由第一位置轴向运动至第二位置并保持于所述第二位置，控制件位于第一位置，驱动安装部处于安装状态，控制件位于第二位置，驱动安装部处于拆卸状态。
一种实施方式中，控制件的一端与所述机身铰接，且以与所述机身的铰接点为转动中心相对机身转动。传动件套设于所述机身，其一端与所述控制件可转动连接，另一端可抵持于所述驱动安装部，所述传动件以其与所述控制件的连接点为支点在所述控制件的带动下轴向移动以驱动所述驱动安装部轴向移动。控制件开设有腰形孔，所述传动件包括卡设于所述腰形孔的安装柱，所述安装柱可在所述腰形孔内移动以使所述传动件与所述控制件可转动连接，同时允许所述传动件沿输出轴的轴向移动。
优选地，释放组件还包括与控制件配接的操作件，所述操作件可操作地驱动控制件运动。
一种实施方式中，操作件设置成与控制件一体成型的操作部，所述操作部带动控制件绕输出轴轴旋转驱动传动件作轴向移动。
一种实施方式中，所述操作件与控制件之间进一步设置有传动杆，所述传动杆沿轴向设置于机身内。操作件包括凸轮部以及凸轮扳手，所述凸轮部枢转地设置于机身，所述传动杆一端抵接的凸轮部，另一端低接控制件，所述凸轮扳手可操作地控制凸轮部枢转从而驱动传动杆沿轴向移动驱动控制件运动。
一种实施方式中，驱动安装部相对所述输出头本体轴向移动。
另一种实施方式中，驱动安装部相对所述输出头本体枢转运动。
再一种实施方式中，驱动安装部相对所述输出头本体径向运动。
本发明的另一发明目的在于提供一种机身稳定好、使用便利性高的手持式砂光机。技术方案是这样实现的：一种手持式砂光机，包括：机身；工作组件，位于所述机身下方；马达，设置于所述机身内，用于驱动所述工作组件；所述机身包括用于收容所述马达的本体、用于装设为所述马达提供电力的电池包的安装部，以及连接于所述本体及所述安装部之间的握持部，所述工作组件位于所述本体的底端，所述安装部位于所述本体一侧，所述安装部远离所述本体的一侧具有用于装设所述电池包的安装位。
上述手持式砂光机，工作组件位于本体的底端，马达收容于本体内，安装部位于本体一侧，且由握持部与本体连接，从而使电池包与马达相对设置，握持更加便利，且符合人体工学，提高操作者使用该手持式砂光机的稳定性。
在其中一实施例中，所述工作组件位于所述马达的输出轴的一端，所述安装部位于所述马达的输出轴的一侧。
在其中一实施例中，所述握持部一端连接于所述本体一侧，另一端连接于所述安装部朝向所述本体的一侧。
在其中一实施例中，所述电池包可拆卸地连接于所述安装部。
在其中一实施例中，所述安装位为用于装设所述电池包的安装槽。
在其中一实施例中，所述电池包安装于所述安装位的安装方向与所述马达的输出轴轴线方向平行。
在其中一实施例中，所述电池包具有纵长方向延伸的电池包主体，所述电池包主体的纵长延伸方向与所述马达的输出轴轴线方向平行。
在其中一实施例中，所述电池包安装于所述安装位的安装方向与所述马达的输出轴轴线方向呈夹角设置。
在其中一实施例中，所述手持式砂光机在连接所述电池包后，重心位于所述本体或所述握持部。
在其中一实施例中，所述本体与所述安装部之间还设有加强部。
本发明另一目有在于提供一种使用安全砂光机。
本发明解决其技术问题所采用的技术方案是：一种砂光机，包括机身；
以及工作底板，所述工作底板可选择与所述机身分离或者配接；所述机身包括壳体、设置于所述壳体内的马达、以及控制马达的开关；所述砂光机还包括安全装置，所述安全装置能够对马达启动进行控制，当所述工作底板配接于机身时，所述安全装置允许所述马达启动；当所述工作底板与机身分离时，所述安全装置阻止所述马达启动。
优选地，安全装置包括用于控制马达转动的控制器，以及检测传感器，用于检测工作底板是否安装，当所述工作底板处于安装状态时，所述检测传感器输出第一检测信号；当所述工作底板处于非安装状态时，所述检测传感器输出第二检测信号，当所述检测传感器输出第二检测信号时，所述控制器控制所述马达不运转。
本发明针对工作底板拆卸后马达异常启动问题，提供一种能够在工作底板拆卸后能够电子互锁、防止马达异常启动、安全可靠的砂光机。
在其中一个实施例中，所述检测传感器包括检测元件，所述工作底板上安装有触发元件，当所述检测元件感应到所述触发元件时，所述检测传感器输出第一检测信号；当所述检测元件未感应到所述触发元件时，所述检测传感器输出第二检测信号。
在其中一个实施例中，所述检测元件为微动开关，所述触发元件为触发杆件；当所述工作底板处于安装状态时，所述触发杆件能够与微动开关接触，并使微动开关输出第一检测信号；当所述工作底板处于未安装状态时，所述触发杆件与微动开关脱离，并使微动开关输出第二检测信号。
在其中一个实施例中，所述检测元件为霍尔传感器，所述触发元件为磁钢；当所述霍尔传感器检测到所述磁钢时，所述霍尔传感器输出第一检测信号；当所述霍尔传感器未检测到所述磁钢时，所述霍尔传感器输出第二检测信号。
在其中一个实施例中，所述打磨元件包括砂板、砂轮、砂带或抛光轮。
在其中一个实施例中，所述砂光机进一步包括识别传感器，所述识别传感器与所述控制器电连接，所述识别传感器用于识别打磨元件是否设置有感应元 件，当工作底板上安装有感应元件时，所述识别传感器输出第一识别信号，当工作底板上没有安装感应元件时，所述识别传感器输出第二识别信号，所述控制器能够根据所述第一识别信号和第二识别信号相对应地控制输出电机的第一速度和第二速度。
在其中一个实施例中，所述第一速度和所述第二速度预先设定在所述控制器内。
在其中一个实施例中，所述砂光机包括一连接柱，所述连接柱具有一端向所述工作底板延伸，所述识别传感器设置于所述连接柱靠近所述工作底板的一端。
在其中一个实施例中，所述砂光机还包括驱动盘，所述电机的输出端与驱动盘连接，所述驱动盘与所述工作底板连接，所述连接柱设置在砂光机的摆动脚与驱动盘之间。
在其中一个实施例中，所述识别传感器为霍尔传感器，所述感应元件为磁钢。
上述砂光机，砂光机通过检测传感器检测工作底板是否安装，对马达是否启动进行控制。当工作底板未安装时，控制电机使其无法运转，防止马达异常启动运转，带动裸露的输出端旋转产生安全问题。
进一步地，上述砂光机根据识别传感器是否识别到带有感应元件的工作底板，智能控制改变马达的运行速度。更换不同类型的工作底板后，不再需要人工调整，通过识别传感器的识别，即能控制控制器将马达速度正确调整到工作底板所需的合理速度上，智能方便，安全可靠，效率高。
附图说明
图1为本发明实施例一的砂光机带板砂底板的主视图。
图2为图1中砂光机带圆砂底板的立体图。
图3为图2中的砂光机带圆砂底板的立体分解示意图。
图4为图3中张紧环的立体示意图。
图5为图3中输出头本体的立体示意图。
图6为图3中圆砂底板的立体示意图。
图7为图3中圆砂底板与驱动组件准备连接状态的立体示意图。
图8为图7中圆砂底板与驱动组件准备连接状态的俯视图。
图9为沿图8中A1-A1方向的剖视示意图。
图10至图14分别为沿图8中A2-A2方向的剖视示意图，分别表示圆砂底板连接于输出头本体时的状态变化。
图15是图1中砂光机主体与板砂底板的立体分解示意图。
图16为第二实施例的砂光机的示意图。
图17为图16所示的砂光机中释放组件的结构示意图。
图18为图17所示的砂光机中释放组件的分解示意图。
图19为图16所示的砂光机处于工作底板正常工作状态时的剖视图。
图20为图16所示的砂光机处于工作底板拆卸状态时的示意图。
图21为图16所示的砂光机处于工作底板拆卸状态时的剖视图。
图22为第三实施例的砂光机中释放组件的结构示意图。
图23为图22所示的砂光机中释放组件的分解示意图。
图24为图22所示的释放组件处于工作底板安装状态时的示意图。
图25为图22所示的释放组件处于工作底板拆卸状态时的示意图。
图26为第四实施例的砂光机中释放组件的结构示意图。
图27为图26所示的砂光机中释放组件的分解示意图。
图28为图26所示的砂光机中释放组件处于工作底板安装状态时的示意图。
图29为图26所示的砂光机中释放组件处于工作底板拆卸状态时的示意图。
图30为本发明实施例五砂光机处于工作模式的主视方向剖视图。
图31为图30中砂光机处于拆装模式的主视方向剖视图。
图32为图30中驱动组件的立体分解示意图。
图33为图30中圆砂底板的立体示意图。
图34为图30中圆砂底板与驱动组件连接状态的俯视图。
图35至图39为沿图34中B-B方向的剖视示意图，分别表示圆砂底板连接于输出头本体时的状态变化。
图40是本发明实施例六砂光机驱动组件的立体分解示意图。
图41是本发明实施例六砂光机圆砂底板的立体示意图。
图42是图40的驱动组件与圆砂底板连接状态的俯视图。
图43是图42中C1-C1方向的剖视示意图。
图44是图43中D-D方向的剖视示意图。
图45至图50为图42中C2-C2方向的剖视示意图，分别表示圆砂底板连接于输出头本体时的状态变化。
图51是本发明实施例七砂光机的主视方向剖视图。
图52是本发明实施例八砂光机的立体分解示意图。
图53是图52中驱动组件装配后的立体示意图。
图54是图52中砂光机主体与板砂底板的装配关系的立体示意图。
图55是图52中圆砂底板的立体示意图。
图56是图52中砂光机主体与板砂底板的装配过程示意图。
图57是图56中D-D方向砂光机的剖视示意图。
图58是图56中D-D方向的砂光机安装到位时的剖视示意图。
图59是图56中砂光机板砂底板安装到位的立体示意图。
图60是本发明实施例九砂光机的主视方向剖视图。
图61为第十实施例的砂光机的结构示意图。
图62为图61所示的砂光机未安装工作头的剖视图。
图63为图61所示的砂光机的工作底板处于固接状态且触发件开开关时的剖视图。
图64为图61所示的砂光机当工作底板处于固接状态且触发件未开关时的剖视图。
图65为图61所示的砂光机的解锁结构处于锁定位置时的剖视图。
图66为本发明实施例十一在移去部分壳体后的砂光机立体示意图。
图67是图66中砂光机的立体分解图。
图68是图66的砂光机的主视方向的剖视图，此时开关没有被触发件启动。
图69是图66的砂光机的主视方向的剖视图，此时开关已被触发件启动。
图70是图66的砂光机的主视方向的剖视图，此时工作底板已拆卸，操作 扳手处于打开位置。
图71是图66的砂光机的主视方向的剖视图，此时工作底板已拆卸，操作扳手处于闭合位置。
图72为本发明实施例十二砂光机的结构示意图。
图73为图72砂光机的一种简单变形，图示为未安装工作底板的状态。
图74为图73中砂光机安装工作底板的状态。
图75为图74中砂光机的检测传感器的工作原理示意图。
图76为本发明实施例十三砂光机安全互锁机构的结构示意图。
图77为图76中砂光机的电路工作原理图。
图78为本发明实施例十四砂光机安全互锁机构状态一的结构示意图。
图79为图78中安全互锁机构状态二的结构示意图。
图80为图78中安全互锁机构状态三的结构示意图。
具体实施方式
为使本发明的上述目的、特征和优点能够更加明显易懂，下面结合附图对本发明的具体实施方式做详细的说明。在下面的描述中阐述了很多具体细节以便于充分理解本发明。但是本发明能够以很多不同于在此描述的其它方式来实施，本领域技术人员可以在不违背本发明内涵的情况下做类似改进，因此本发明不受下面公开的具体实施例的限制。
需要说明的是，当元件被称为“固定于”另一个元件，它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元件，它可以是直接连接到另一个元件或者可能同时存在居中元件。
除非另有定义，本文所使用的所有的技术和科学术语与属于本发明的技术领域的技术人员通常理解的含义相同。本文中在本发明的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本发明。本文所使用的术语“及/或”包括一个或多个相关的所列项目的任意的和所有的组合。
本发明的创作构思是，砂光机上可择一地连接工作底板，例如板砂底板或者圆砂底板，从而使得砂光机连接板砂底时可作板砂运动，砂光机连接圆砂底板时可作圆砂运动。砂光机上提供有连接并驱动圆砂底板或板砂底板的驱动组 件，板砂底板或圆砂底板可择一地与该驱动组件配接或分离。驱动组件上设置有第一卡接件，板砂底板及圆砂底板分别设置有与第一卡接件对应的第二卡接件。当第二卡接件与第一卡接件配接，能阻止对应的工作底板从驱动组件上分离，当第一卡接件与第二卡接件脱开配接，允许对应的工作底板从输出头上分离。从而使得本发明仅需通过更换不同的工作底板，就能在不同功能或工作模式之间进行转换，就可在不同磨削工况例如板砂和圆砂之间进行切换，并且更换结构简单，可靠、操作方便。而不必要同时提供不同功能的砂光机以应对不同的功况需求。
下面结合附图，说明砂光机的较佳实施方式。
实施例一
请参考图1至图2，实施例一提供了一种可替换工作底板的砂光机100，其中图1示出了砂光机连接板砂底板6，可作板砂运动；图2示出了砂光机连接圆砂底砂4，可作圆砂运动。砂光机100包括机壳110，连接于机壳110且向一侧横向延伸的主手柄102，相对主手柄102向另一侧横向延伸的辅助手柄103，主手柄102设置有控制马达启动的开关扳机105。
参照图2、图3所示，砂光机100上连接圆砂底板4；砂光机100包括机身1，释放组件2以及驱动组件3。其中机身1包括设置于壳体110的马达，马达具有竖向延伸的马达轴11，相对机壳110固定的定位座13，套设于马达轴11上的风扇14，以及围绕风扇14设置的风扇外罩15。其中风扇14与马达轴11通过紧固件48配接以使能在马达轴11旋转时随之旋转，风扇14具有一个提供旋转的偏心输出端141；风扇外罩15上远离马达的一端设置有刹车环16。砂光机100还包括与机壳110可拆卸连接的侧盖板17，侧盖板17上设置有若干出风口，用于排出由风扇14驱动产生的冷却气流，侧盖板17与机壳110之间设置有横向延伸的槽口112(参照图1或图2)；主体部1上以马达轴11为中心的四个对角上分别固定设置有摆动脚12。本实施例中的马达轴11即是将马达旋转运动传递至驱动组件3的输出轴，驱动组件3能够绕马达轴11轴线进行公转，又能够绕偏心轴线作自转；因此在砂光机110在圆砂运动的工作过程中，驱动组件3绕马达轴11轴线和偏心轴线旋转。
驱动组件3包括输出头本体36与驱动安装部，输出头本体36与输出轴配接，驱动安装部连接于输出头本体36靠近机身1的一侧。
释放组件2可操作地带动驱动安装部相对于输出头本体36移动，以使驱动安装部在安装状态与拆卸状态之间切换。在安装状态时工作底板能够与驱动安装部配接，在拆卸状态时工作底板能够在与驱动安装部脱开而分离。在本实施例中，驱动安装部相对输出头本体36轴向移动。在其它实施例中，驱动安装部可相对输出头本体36枢转运动，或相对输出轴本体36径向运动。
进一步地，释放组件2包括传动件，以及与传动件配接的控制件。传动件设置于控制件与驱动安装部之间，并可在控制件的驱动下带动驱动安装部轴向移动。
本实施例中，释放组件2包括减磨片21，以及固定设置于主体部1的若干个导向件28。控制件为解锁环22，位于减磨片21的下方，传动件为相对解锁环22活动设置的凸轮件23，其中导向件28上分别提供有导向柱25，导向柱25上套设有弹簧24，导向柱25的自由端与凸轮件23的配接部23a活动连接，从而使得配接部23a能克服弹簧24作用力相对导向柱25沿导向柱延伸方向产生位移。其中解锁环22大致为一个环形件，解锁环22的侧壁上设置有操作部22a，操作部22a延伸出槽口112便于操作者手动控制，并且操作部22a能在槽口112的长度范围内移动，以使得能带动解锁环22可以在拆装模式与工作模式间进行位置转换。解锁环22的底端设置有若干斜凸部22b。凸轮件23上对应地设置有若干个与斜凸部22b配接的斜槽23b。
砂光机100正常工作状态时，斜凸部22b与斜槽23b啮合配接，当需要更换工作底板时，通过操作部22a控制解锁环22相对凸轮件23转过一个角度，此时斜凸部22b会沿着斜槽23b的斜坡上爬，至使凸轮件23克服弹簧24作用力相对导向柱25沿马达轴11轴向向下产生位移，即向远离马达轴11方向移动。由于解锁环22与凸轮件23之间采用的是凸轮面配合，即相当于保持机构，当凸轮件23轴向移动推动驱动安装部相对输出头本体移动至解锁位置时，该解锁位置能够被自动地保持，从而方便底板4、6的拆卸及安装。
驱动组件3包括与偏心输出端141配接的轴承32，与轴承32紧配的输出头 本体36，相对输出头本体36沿马达轴11轴向活动设置的驱动安装部，以及通过螺钉39与输出头本体36固定连接的盖板33，其中驱动安装部位于盖板33与输出头本体36之间；本实施例的驱动安装部设置成环状的张紧环34，张紧环34与输出头本体36之间沿张紧环34圆周方向分布有若干个弹性件35，本实施例的弹性件35采用的是压簧，本领域技术人员可以用其它弹性材料进行替换。驱动组件3通过紧固件48固定连接于马达轴11的端部，驱动组件3实质上是将马达的运动传递至工作底板的传动装置。
砂光机100正常工作状态时，在弹性件35的弹性作用力下，张紧环34被支撑于初始位置，即第一位置，此时，斜凸部22b与斜槽23b啮合配接。当需要更换工作底板时，通过操作部22a控制解锁环22带动凸轮件23移动，凸轮件23移动过程中克服弹簧24作用力沿马达轴11轴向产生靠近输出头本体36的位移，至使张紧环34克服弹性件35作用移动至解锁位置，即第二位置，此弹性件35处于压缩状态。此时，与输出头本体36配接的工作底板，如圆砂底板4被允许与输出头本体36分离。再替换另一工作底板，如将板砂底板与输出头本体36配接，然后通过操作部22a控制解锁环22相对凸轮件23反向转过一个角度后，凸轮件23在弹簧24的复位作用力下向上移动复位，再次与斜槽23b啮合配接，此时张紧环34在弹性件35的作用力下回复至初始位置，从而将板砂底板锁定于输出头本体36。
参照图4所示，张紧环34大致为环状体，环状体的内侧端面上沿圆周方向分布有若干个第一卡接件341，该第一卡接件341沿张紧环34的径向向内突出，并且于径向方向上形成底部突出于张紧环34底面的卡扣部342，卡扣部342均位于第一卡接件341的同一侧；张紧环34于相邻的两个第一卡接件341之间还分别设置有限位部343，限位部343与卡接部341之间形成有间隙L1，其中卡扣部342分别位于第一卡接件341上远离间隙L1的一侧。卡扣部342设置有第一卡接面342a。
参照图5所示，输出头本体36大致为外径比张紧环34略大的环状体，环状体的围面外侧均匀地分布有若干个扭矩传递部361，围面内侧沿圆周方向均匀分布有若干个径向延伸的突出件362，突出件362上设置有导向部362a；相邻 突出件362之间设置有提供第一卡接件341穿过的间隙L2；突出件362分别沿竖直方向延伸形成有高出于围面的凸台部363，相邻凸台部363由环形壁364相连接。其中凸台部363的延伸宽度略小于间隙L1，以至于当张紧环34与输出头本体36配接时，凸台部363能穿过张紧环34的间隙L1，从而允许张紧环34嵌套于输出头本体36上，张紧环34以凸台部363为导向克服弹性件35的作用力相对输出头本体36产生沿马达轴11方向的位移，也就是说，张紧环34能相对输出头本体36在竖直方向上在第一位置与第二位置间移动。位于突出件362内侧的输出头本体36上设置有环形凸台365，环形凸台365的外围面设置成具有锥度的凸台锥面368。
参照图6所示，圆砂底板4设有中心圆槽47，围绕中心圆槽47设置有圆盘面41，以及在圆盘面41与中心圆槽47之间设置配接区域，包括设置在圆盘面41内侧壁上沿周向分布的扭矩传递部40，扭矩传递部40与与输出头本体36的扭矩传递部361相对应，用于当圆砂底板4安装于驱动组件3时，扭矩传递部40与输出头本体36扭矩传递部361啮合配接，通过这样的配接关系，在马达旋转过程中输出头本体36将其扭矩传递至圆砂底板4。在扭矩传递部40的内侧，圆砂底板4上沿圆周方向上设置有突出于圆盘面41的第二卡接件42，第二卡接件42与间隙L2对应设置，用于在圆砂底板4与输出头本体36配接时，第二卡接件42穿过间隙L2与第一卡接件341卡接，第二卡接件42设置有卡接部43以及导向部44。第二卡接件42的内侧沿周向均布有沿马达轴11轴向延伸的轴向锥面49，用于当圆砂底板4与输出头本体36配接时，轴向锥面49与凸台锥面368之间无间隙契合，并且轴向锥面49位于凸台锥面368的外侧。圆砂底板4与输出头本体36之间这样的无间隙配接使得两者之间无论轴向还是径向契合度都非常高。卡接部43上设置有与第二卡接面43a，第二卡接面43a与第一卡接面342a平行设置。
进一步参照图7至图9，当圆砂底板4与输出头本体36配接时，轴向锥面49与凸台锥面368至少部分完全贴合，因此在圆砂底板4在第一卡接件341的轴向吊紧力的作用下，可以很好的去除圆砂底板4与输出头本体36的轴向和径向间隙。使得两者在旋转时基本保持同轴且同步性好，减少两者之间由于间隙 而导致的不同步产生额外的能量损耗，工作效率明显提升。
进一步图10，当解锁环22移动至拆装模式，凸轮件23下压张紧环34，张紧环34的第一卡接件341在凸台部363的导向作用下滑入突出件362的间隙L2中，直至卡扣部342与突出件362抵接，处于第二位置。
参照图11，当张紧环34移动至第二位置后，此时可托住圆砂底板4，将圆砂底板4的第二卡接件42与间隙L2对准后插入间隙L2中。
参照图12，在第二卡接件42插入间隙L2的过程中，第二卡接件42的导向部44沿着突出件362的导向部362a上升，从而进入由卡扣部342与突出件362形成的间隙中。当第二卡接件42进入卡扣部342第一卡接面342与突出件362间隙后，第二卡接件42的卡接部43第二卡接面43与第一卡接件341的卡扣部342相互正对。
参照图13、图14，通过控制操作部22a将解锁环22移动至工作模式，凸轮件23在弹簧24作用力下复位，相应地，张紧环34在弹性件35作用力下从第二位置移动至第一位置，即张紧环34带动第一卡接件341向上移动。此时，第一卡接件341的第一卡接面342a将第二卡接件42的第二卡接面43a勾住实现两者的相互卡接，从而阻止圆砂底板4从驱动组件3上拆卸。在第一卡接件341的第一卡接面342a随张紧环34向上产生位移的过程中，第二卡接面43a被张紧环34的第一卡接面342a带动进入间隙L2的更小的间隙部，第二卡接面43由于受到第一卡接面342a向上作用力的止挡，无法从该更小的间隙部向下脱出，从而张紧环34将圆砂底板4锁定在驱动组件3上。
第二卡接件42可相对第一卡接件341运动以与第一卡接件341卡接或分离；其中，当驱动组件与工作底板处于配接状态时，第一卡接件341与第二卡接件42在垂直于第一卡接件341与第二卡接件42相对运动方向的平面上的正投影至少部分重合，以阻止第一卡接件341与第二卡接件42向相反方向运动而分离。当工作底板与驱动组件处于配接状态时，第一卡接面342a与第二卡接面43a在互相施加的压力作用下至少部分重叠。弹性件35为第一卡接面342a提供施加于第二卡接面43a上的压力。当然，本领域技术人员可以设想，反之，只要将解锁环22沿槽口112移动至拆装模式，凸轮件23下压张紧环34使其从第一位 置移动至第二位置，即使得张紧环34产生向下的位移，此时圆砂底板4可以被操作向下移动，也就是说，第二卡接件42的导向部43沿着突出件362的导向部362a由较小的间隙部下滑进入较大的间隙L2中，从而使第二卡接件42可以从间隙L2脱出，即允许工作底板从输出头本体36上分离。
参照图15所示，板砂底板6上设置与有圆砂底板结构相似的配接区域，当需要替换安装板砂底板6时，可以参照圆砂底板4的安装方式进行，不同之处在于，板砂底板6的第二卡接件42的外侧设置有与主体部1上的摆动脚12相对应的板砂连接部62，因此当板砂底板6与输出头本体36配接时，板砂连接部62与摆动脚12啮合配接，从而使砂光机处于板砂工作模式中，摆动脚12对板砂底板6起限定作用。本实施例中，板砂连接部62大致设置成柱状体，其中柱状体的中心凸伸出具有球面的直径略小的圆柱，用于与设置于主体部1摆动脚12的中心圆槽配接。此外，中心圆柱的球面可以替换成锥面。本领域技术人员可以设想，板砂连接部62和摆动脚12不限于柱状，可以设置成其它形状以实现配接时实现稳定的传动。由此，砂光机100可具备圆砂和板砂两种不同的功能，而不需要准备两种工具，且工作底板安装及拆卸操作均十分方便。综上所述，安装工作底板时，使第一卡接件341由第一位置运动至第二位置；将工作底板4，6相对驱动组件3沿马达轴11轴向移动至配接位置；使第一卡接件由第二位置回复至第一位置。第一卡接件由第一位置运动至第二位置由至少部分设置于机壳110外部的解锁环22驱动控制。工作底板4，6拆卸时，先使第一卡接件341由第一位置运动至第二位置；再将工作底板4，6相对驱动组件3轴向分离，第一卡接件341由第二位置运动至第一位置由解锁环22驱动控制。
工作底板4，6与驱动组件3的这种结构设置方式，使得工作底板本身及驱动组件自带有起连接功能的部件，省去了需要额外的第三个零部件，例如螺钉等紧固件将两者进行固定或紧配，从而操作界面简洁、拆装或更换工作底板更方便、快速。
第二实施例
请参阅图16、图17及图18，本实施例具有与第一实施例中砂光机100类似的结构，其中相同的结构以统一的编号表示，并不作赘述。在本实施例中， 释放组件的控制件的一端与机身主体部1的机壳110铰接，且以其与机壳110的铰接点111为转动中心相对机壳110转动，控制件为解锁扳手222，传动件为下压环223，驱动安装部为张紧环34。
具体地，环状的下压环223套设于机壳110，其一端与解锁扳手222通过销轴可转动连接，另一端可抵持于驱动组件3的张紧环34。该下压环223以其与解锁扳手222的连接点2231为支点在解锁扳手222的带动下沿输出轴的轴线方向移动，以驱动驱动组件3的张紧环34沿输出轴轴向移动。
解锁扳手222开设有腰形孔2221，下压环223包括卡设于腰形孔2221的安装柱2232，安装柱2232可在腰形孔2221内移动，从而使下压环223与解锁扳手222可转动连接，同时允许下压环223沿输出轴的轴向移动。
具体地，解锁扳手222包括安装部2222及设于安装部2222一端并与安装部2222呈一定角度连接的锁紧部2224。安装部2222远离锁紧部2224的一端与机壳110铰接，解锁扳手222以安装部2222与机壳110的铰接点111为转动中心转动。腰形孔2221设置于安装部2222上，腰形孔2221沿安装部2222相对于锁紧部2224的延伸方向设置于安装部2222上。
在本实施例中，安装部2222包括两个间隔设置的旋臂(图未标)，机壳110穿过两个旋臂之间。两个旋臂一端共同固接于锁紧部2224，另一端开设有安装孔以分别与机壳110通过销轴可转动连接。腰形孔2221设置于旋臂的中部。进一步地，旋臂的中部设有凸耳，腰形孔2221开设于该凸耳上。
下压环223大致呈环状结构，其设有两个相对设置的连接臂。两个连接臂向解锁扳手222方向延伸，且两者与解锁扳手222连接的一端分别凸出设置安装柱2232。安装柱2232卡设于腰形孔2221内并可在腰形孔2221内移动，从而使下压环223可转动地连接于解锁扳手222内，并可在解锁扳手222转动时在腰形孔2221的限制下沿输出轴的轴线方向上下移动，且不干涉解锁扳手222的转动。
砂光机还包括能够将驱动安装部保持在拆卸状态的保持机构，通过保持机构，张紧环34能够被保持于解锁位置，即第二位置上。保持机构包括连接于锁紧部2224的锁定件2226，以及设置于机壳110的卡持件123。其中锁定件2226 可在解锁扳手222的带动下向靠近驱动组件3的方向转动并卡持于机壳110的卡持件123，以阻挡解锁扳手222向机壳110方向回复。如此，当解锁扳手222向靠近驱动组件3方向转动直至工作底板可脱离驱动组件3时，解锁扳手222由于锁定件2226的阻挡而锁定，从而使操作者可方便地更换工作底板而无需担心解锁扳手222向机壳110方向回复。
如图18及图19所示，具体地，卡持件123设置于砂光机100的机壳110内靠近锁定件2226的位置；锁定件2226包括锁定件本体2226a与设置于锁定件本体2226a的第一锁定部2226b。锁定件本体2226a远离第一锁定部2226b的一端与解锁扳手222的锁紧部2224通过销轴连接，从而跟随解锁扳手222转动。第一锁定部2226b远离锁定件本体2226a的一端可抵持于卡持件123，以锁定解锁扳手222。
进一步地，锁定件2226还包括第二锁定部2226c，该第二锁定部2226c设于锁定件本体2226a设有第一锁定部2226b一端，并与第一锁定部2226b间隔设置。卡持件123可伸入第一锁定部2226b与第二锁定部2226c之间，当锁定件2226跟随解锁扳手222转动时，卡持件123可在第一锁定部2226b与第二锁定部2226c形成的容纳空间内移动，即，卡持件123从第一锁定部2226b的靠近第二锁定部2226c一侧的底部移动至第一锁定部2226b的顶端，而与第一锁定部2226b抵持。第二锁定部2226c远离第一锁定部2226b的一侧抵持于解锁扳手222的内壁，从而阻挡解锁扳手222向远离驱动组件3的方向转动。当需要解锁扳手222转动而使下压环223向远离驱动组件3方向移动时，操作者可手动按压锁定件2226使锁定件2226脱离卡持件123，从而解除解锁扳手222的锁定状态。而在没有外力作用时，解锁扳手222由于锁定件2226抵持于卡持件123而保持在预定位置。
如图19至图21所示，当需要更换工作底板时，解锁扳手222以其与机壳110的铰接点111为转动中心靠近驱动组件50的方向下压转动时，可带动下压环223向靠近驱动组件3的第一卡接件341方向移动，下压环223进而推动张紧环34的第一卡接件341向第二卡接件42方向移动，至使张紧环34克服弹性件35作用移动至解锁位置，即第二位置，此弹性件35处于压缩状态。此时， 与输出头本体36配接的工作底板，如圆砂底板4被允许与输出头本体36分离。并且此时，锁定件2226在解锁扳手222的带动下旋转而抵持于卡持件123，避免解锁扳手222在工作底板的更换过程中回复。
在操作人员替换工作底板之后，可按压锁定件2226以使锁定件2226脱离卡持件123，进而向远离驱动组件3的方向转动解锁扳手222，从而使第一卡接件341向远离第二卡接件42方向移动，此时张紧环34在弹性件35的作用力下回复至初始位置，从而将工作底板锁定于输出头本体36。
上述实施例的砂光机100，操作者可转动解锁扳手222而依次带动下压环223、驱动组件3在机壳110的轴线方向移动，使驱动组件3在安装状态与拆卸状态之间切换，最终使工作底板可脱离驱动组件3而完成工作底板的更换。并且，保持机构可避免解锁扳手222在工作底板更换过程中向机壳110方向回复，从而使操作者可方便从容地完成工作底板的更换。
第三实施例
参照图3、图22及图23所示，本实施例具有与第一实施例类似的结构，其中相同的结构以统一的编号表示，并不作赘述。在本实施例中，控制件一端与机壳110铰接，且以其与机壳110的铰接点2241为转动中心转动。
具体地，释放组件的控制件为解锁压杆224，传动件为下压环225。环状的下压环225套设于机壳110，其一端与解锁压杆224通过销轴可转动连接，另一端可抵持于驱动组件3。该下压环225以其与解锁压杆224的连接点2251为支点在解锁压杆224的带动下沿轴线方向移动以驱动张紧环34移动。
解锁压杆224开设有腰形槽224a，下压环225包括卡设于腰形孔224a的安装柱2252，安装柱2252可在腰形孔224a内移动，从而使下压环225与解锁压杆224可转动连接，同时允许下压环225沿轴线方向移动。
砂光机100还包括用于将张紧环34驱动至解锁位置即第二位置上的操作件，以及将张紧环34保持于第二位置上的保持机构。操作件与解锁压杆224配接，并可操作地驱动解锁压杆224运动。具体地，操作件包括安装于解锁压杆224的拨钮组件2242，解锁压杆224可在拨钮组件2242的带动下相对机壳110转动，并在保持机构的限位下定位。如此，当解锁压杆224向靠近驱动组件3 方向转动直至工作底板可脱离驱动组件3时，解锁压杆224由于拨钮组件2242的限位而锁定，从而使操作者可方便地更换工作底板而无需担心解锁压杆224向机壳110方向回复。
具体地，拨钮组件2242包括拨钮2242a、拨钮支撑轴2242b及设于拨钮2242a上的拨钮销2242c。拨钮2242a一端穿过拨钮支撑轴2242b且绕拨钮支撑轴2242b的中心轴线转动，并带动位于中心轴线一侧的拨钮销2242c绕上述中心轴线转动。解锁压杆224开设有滑槽，拨钮销2242c插设于滑槽中并在转动过程中沿滑槽滑动。由于拨钮销2242c位于上述中心轴线一侧，因此拨钮销2242c的转动可带动解锁压杆224以铰接点2241为转动中心转动。本实施例的保持机构包括设置于机壳110的阻挡件(未图示)，当拨钮2242a转动至与阻挡件相抵接的位置，张紧环34保持于第二位置上。
如图3、图24及图25所示，当控制拨钮2242a向一方向转动时，可带动解锁压杆224以其与机壳110的铰接点2241为转动中心转动，进而带动下压环225向靠近驱动组件3方向移动，下压环225进而推动张紧环34的第一卡接件341向第二卡接件42方向移动，至使张紧环34克服弹性件35作用移动至解锁位置，即第二位置，此时弹性件35处于压缩状态，与输出头本体36配接的工作底板，如圆砂底板4被允许与输出头本体36分离。在操作人员替换工作底板之后，控制拨钮组件2242向另一方向转动回复，进而使下压环224向远离驱动组件3方向移动，从而使第一卡接件341向远离第二卡接件42方向移动，此时张紧环34在弹性件35的作用力下回复至初始位置，从而将工作底板锁定于输出头本体36。
上述第三实施例的电动工具，操作者手动转动拨钮2242a而带动解锁压杆224转动，进而带动下压环225、驱动盘安装结构30在机壳110的轴线方向移动，使驱动组件3在安装状态与拆卸状态之间切换，最终使工作底板可脱离驱动组件3而完成工作底板的更换。
实施例四
参照图26、图27所示，本实施例是第三实施例的一种变形，其中相同的结构以统一的编号表示，并不作赘述。在本实施例中，操作件驱动解锁压杆224绕铰接点2241转动，操作件为凸轮扳手228，与凸轮扳手228连接的连杆227 将凸轮扳手228的转动转换为连杆227的轴向运动。其中凸轮扳手228通过枢轴228c可相对转动地连接于机壳(未图示)，凸轮扳手228包括操作部228a以及凸轮部228b。连杆227设有与凸轮部228b配接的第一配接端227a以及与解锁压杆224配接的第二配接端227b。其中连杆227竖直地设置于机壳内，连杆227第一配接部227a与设置于机壳外部的凸轮扳手228抵接，第二配接端227b与解锁压杆224的槽口224b啮合配接。连杆227设置于凸轮扳手228与解锁压杆224之间，使得凸轮扳手228的转动通过连杆227转换为解锁压杆224的转动。
如图28所示，只需要通过操作部228a控制凸轮扳手228绕枢轴228c相对机壳转动，通过连杆227就能驱动解锁压杆224绕铰接点2241转动，从而带动下压环225沿轴向移动，下压环225驱动张紧环34克服弹性件35作用在初始位置与解锁位置之间轴向移动。
由于解锁压杆224的腰形槽224a设置于铰接点2241与槽口224b大致中间位置，通过槽口224b与连杆227配接的解锁压杆224在枢转时，啮合于腰形槽224a的连接点2251带动下压环225能相对稳定地沿轴向移动。
当凸轮扳手228的操作部228a处于第一位置，凸轮部228b的凸轮面离枢轴228c最近，连杆227在弹性件(未图示)的作用下处于高位，此时解锁压杆224、下压环225及张紧环34均处于初始位置。如图29所示，当凸轮扳手228的操作部228a绕枢轴228c枢转至第二位置，凸轮部228b的凸轮面离枢轴228c最远，连杆227克服弹性件(未图示)作用力被下压至低位，连杆227的轴向移动驱动解锁压杆224相对机壳转动，从而推动下压环225沿轴向移动使张紧环移动至解锁位置，即第二位置。
实施例五
参照图30至图32所示，本实施例具有与第一实施例类似的结构，其中相同的结构以统一的编号表示，并不作赘述。本实施例的驱动组件8用于与圆砂底板和板砂底板择一配接，以分别进行圆砂工作模式或板砂工作模式，为了方便描述，本实施例采用圆砂底板4’进行说明。
驱动组件8包括输出头本体86，以及活动的设置于输出头本体86上的张紧 件，即第一卡接件84；具体地，第一卡接件84的数量包括若干个，分别沿输出头本体86圆周方向分布。不同之处在于，输出头本体86上对应第一卡接件84分别设置安装座88，第一卡接件84通过旋转销85枢转地连接于安装座88，另外第一卡接件84与安装座88之间设置有复位装置，具体为弹簧83，弹簧83的一端抵接安装座88，以另一端抵接第一卡接件84从而使得第一卡接件84在弹簧83作用力下保持于初始位置。第一卡接件84上设置有卡勾部84a，以及与凸轮件23可选择的抵接的作用部84b，当第一卡接件84处于初始位置时卡勾部84a处于第一位置，此时卡勾部84a与工作底板、例如圆砂底板4’的第二卡接面43’配合锁定，以阻止圆砂底板4’与驱动组件8上分离或从驱动组件拆卸。驱动组件8通过紧固件48连接于马达轴11，输出头本体86通过轴承82可旋转地连接于偏心输出部141。第一卡接件84的作用部84b在凸轮件23的下压作用下绕旋转销85枢转，以使得卡勾部84a与圆砂底板4’的第二卡接件脱开锁定，从而允许圆砂底板4’从驱动组件8上分离或拆卸。
参照图33所示，圆砂底板4’设有中心圆槽47’，围绕中心圆槽47’设置有扭力传递部40’，用于与输出头本体86上的扭力传递部(图中未示出)配接用于将驱动组件8的运动传递至圆砂底板4’。扭力传递部40’与中心圆槽47’之间设置一个环形凸台，环形凸台的内侧围面设置成轴向锥面49’。圆盘面41’为围绕中心圆槽设置并远离扭力传递部40’的环形面，圆盘面41’与扭力传递部40’之间形成凹槽45，圆盘面41’靠近中心圆槽47’的一侧面上沿圆周方向上设置有若干个第二卡接件42’，第二卡接件42’具有设置成斜坡的导向部44’以及第二卡接面43’，其中第二卡接面43’与凹槽45之间形成槽口46，用于提供给第一卡接件84的卡勾部84a沿导向部44’进入槽口46后与第二卡接面43’卡接，从而将圆砂底板4’锁定于输出头本体86上。
参照图34、图35所示，输出头本体86的底端设置有凹槽89，凹槽89的内侧壁设置成锥面368’，用于当工作底板包括圆砂底板4’、板砂底板与输出头本体86配接时，环形凸台365的轴向锥面49’与锥面368’之间无间隙配接使得两者之间无论轴向还是径向契合度都非常高。
参照图34至图38所示，当需要将圆砂底板4’安装于砂光机主体部1的驱 动组件8时，先将圆砂底板4’的中心圆槽与输出头本体86的轴承82初步对准后将圆砂底板4’靠近输出头本体86。在操作者沿马达轴方向的推力作用力下，使第一卡接件84的作用部84b与第二卡接件42’的导向部44’抵接，此时第一卡接件84压缩弹簧83并绕旋转销85沿箭头R所示方向枢转，同时卡勾部84a沿着导向部44’滑动而进入凹槽45。卡勾部84a最终进入槽口46与第二卡接面43’卡接而使圆砂底板4’与驱动组件8的配接或锁定在一起，此时弹簧83由压缩状态回复至初始状态，并且在弹簧83的弹性作用力下，圆砂底板4’与驱动组件8的配接或锁定被保持。
参照图39所示，当需要将圆砂底板4’从驱动组件8上分离或拆卸，只要通过控制控制件的操作部(图中未示出)，使凸轮件23沿马达轴方向R1产生位移而下压第一卡接件84，此时弹簧83被压缩，作用部84b而绕旋转销85沿箭头R1所示方向枢转至与圆砂底板4’的第二卡接面43’脱开卡接，从而允许圆砂底板4’从驱动组件8上分离或拆卸。
综上所述，安装工作底板时，包括圆砂底板4’和板砂底板，将工作底板相对驱动组件8沿马达轴11轴向移动至配接位置，使得第一卡接件84在工作底板的轴向作用力下克服弹簧83作用力由第一位置运动至第二位置，当第二卡接件与第一卡接件84实现轴向卡接时，第一卡接件84在弹簧83作用力下自动地由第二位置回复至第一位置，从而使工作底板相对驱动组件8实现了锁定。本实施例中第一卡接件84绕旋转销85作枢转运动。拆卸工作底板时，使第一卡接件84由第一位置运动至第二位置；再将工作底板与驱动组件8轴向分离，第一卡接件由第一位置运动至第二位置由控制件22驱动控制。
实施例六
参照图40所示，本实施例具有与第一实施例类似的结构，其中相同的结构以统一的编号表示，并不作赘述。本实施例的驱动组件9用于与圆砂底板和板砂底板择一配接，以分别进行圆砂工作模式或板砂工作模式，为了方便描述，本实施例采用圆砂底板进行说明。驱动组件9包括输出头本体95，相对输出头本体95活动设置的解锁环93，套设于解锁环93上的挡圈94，与输出头本体95紧固配合的轴承92，以及位于轴承92一侧的轴承挡圈91。其中挡圈94设置成 具有弹性的环形件，解锁环93能沿马达轴11轴向相对输出头本体95产生位移。解锁环93包括若干个向输出头本体95方向延伸的支脚93a，支脚93a沿解锁环93圆向方向均匀分布，每个支脚93a上设置有斜坡931和连接斜坡931的凹槽932，正常状况下，挡圈94啮合于支脚93a的凹槽932内。当解锁环93受凸轮件23的下压作用时向靠近输出头本体95方向产生轴向位移时，挡圈94沿着支脚93a的斜坡931滑动的同时挡圈94的直径发生形变而产生径向位移。输出头本体95大致为环状体，其包括环形面95a以及凸出于环形面的凸台951，凸台951包括若干沿圆周方向分布的抵靠件953，抵靠件953径向向外延伸并与环形面95a之间形成的凹槽955，通常状况下，挡圈94啮合于凹槽955内，抵靠件953为挡圈94提供轴向限位。凸台951上分别间隔地设置有第一通道954和第二通道956，其中第二通道956用于收容解锁环的支脚93a。第二通道956设有抵靠壁958。
参照图41所示，圆砂底板4a同样具有圆盘面41’以及中心圆槽47，圆盘面41’与中心圆槽47之间的区域形成有低于圆盘面41’的凹槽45’，凹槽45’内设置若干个沿周向分布的第二卡接件42a，第二卡接件42a具有沿坚直方向延伸并且延伸高度超出圆盘面41’的自由末端。第二卡接件42a的自由末端设有倾斜的导向部44a，与导向部44a连接的过渡部44b，以及与过渡部44b连接并且倾斜方向与导向部44a相反的卡接部44c，另外导向部44a两侧分别设有直立式的传动部44d(图中仅示出一个)。第二卡接件42a的背面设置有与第一通道954的通道壁抵接的配接面492。
参照图42至图44，圆砂底板4a与驱动组件9处于配接状态时，啮合于输出头本体95凹槽955的挡圈94与圆砂底板4a第二卡接件42a的卡接部44c抵接，此时圆砂底板4a在挡圈94的弹性力作用下，能去除圆砂底板4a与输出头本体95之间的轴向间隙。第二卡接件42a的配接面492与通道956的抵靠壁958过盈配合从而消除圆砂底板4a与驱动组件9的径向间隙。同时圆砂底板4a的凹槽45’顶面与输出头本体95的底面抵接同样很好了消除了圆砂底板4a与输出头本体95之间的轴向间隙。从而保证在了圆砂底板4a与输出头本体95在旋转时基本保持同轴且同步性好，减少两者之间由于间隙而导致的不同步产生额外的 能量损耗，工作效率明显提升。
参照图45至图48，当需要将圆砂底板4a安装于砂光机主体部1的驱动组件9时，先将圆砂底板4a的中心圆槽47与输出头本体95的轴承92初步对准后将圆砂底板4a靠近输出头本体95。在操作者沿马达轴11方向的推力作用力下，使第二卡接件42a从通道954底部入口进入通道954中，当导向部44a与挡圈94抵接并随着第二卡接件42a的进一步推进，挡圈94与导向部44a相互抵接且在导向面44a上滑动，同时挡圈94产生径向形变，从而允许第二卡接件42a进一步进入通道954；当第二卡接件42a完全进入通道956，挡圈94沿着导向部44a滑向过渡部44b，再由过渡部44b滑动至卡接部44c，此时挡圈94由形变状态回复至初始状态，最后与卡接部44c弹性卡接，从而将圆砂底板4a配接或锁定于驱动组件9上。而此时第二卡接件42a的传动部44d分别与通道954的侧壁配合用于在驱动组件9旋转时传递扭矩。
进一步参照图49、图50所示，当需要将圆砂底板4a从驱动组件9上分离或拆卸，只要通过控制件的操作部(图中未示出)，使凸轮件23沿马达轴方向产生位移而下压控制件93，此时控制件93的斜坡931开始与挡圈94抵接并且沿着斜坡931滑动，同时挡圈94产生径向形变。当挡圈94沿着斜坡931滑动至极限位置时，第二卡接件42a的卡接部44c与挡圈94脱开了卡接，从而允许圆砂底板4a从驱动组件9上分离或拆卸。
综上所述，本实施例的挡圈94即为第一卡接件。安装工作底板时，包括圆砂底板4a和板砂底板，将工作底板相对驱动组件9沿马达轴11轴向移动，使得挡圈94在工作底板的轴向作用力下产生径向弹性变形由第一位置运动至第二位置，以允许第二卡接件42a进一步轴向移动至配接位置，第一卡接件94即恢复形变，由第二位置回复至第一位置对第二卡接件42a实现卡接，从而使工作底板相对驱动组件9实现了锁定。拆卸工作底板时，使第一卡接件94由第一位置运动至第二位置；再将工作底板与驱动组件9轴向分离，第一卡接件94由第一位置运动至第二位置由控制件22驱动控制。
实施例七
参照图51所示，本实施例由第六实施例的一种变形，因此相同的结构以同 一编号表示并不作赘述。工作底板包括底板主体，以及设置于底板主体的第二卡接件。本领域技术人员可以设想将挡圈94’作为第二卡接件设置在工作底板上，例如圆砂底板或者板砂底板，本实施例中挡圈94’收容于圆砂底板4b的接收部并且可以产生径向运动。驱动组件9’上对应地设置有第一卡接件960，第一卡接件960具有导向部962，卡接部964，以及连接导向部962与卡接部964的过渡部963；其中导向部962和卡接部964分别为倾斜方向相反的坡面。圆砂底板4b上设置有凹槽45’。
当圆砂底板4b与驱动组件9’配接时，将圆砂底板4b的凹槽45’与第一卡接件960对准后抵接，此时，挡圈94’在推力作用下沿导向部962滑动并产生沿径向向外位移，即产生弹性形变，同时第一卡接件960部分进入凹槽45’；进一步地，挡圈94’顺着导向部962经过过渡部963后滑向卡接部964，此时挡圈94’恢复形变，即产生径向位移，此时第一卡接件960完全进入凹槽45’，挡圈94’与卡接部964卡紧配接，并且在挡圈94’的弹性作用力下，圆砂底板4b与驱动组件9’的配接或锁定被保持。
本领域技术人员可以设想，将释放组件设置在工作底板上，通过设置于工作底板上的控制件驱动挡圈94’形变而产生径向方向的位移，从而使得接部964与挡圈94’脱开配接，允许工作底板从砂光机主体部上分离。
综上所述，本实施例的挡圈94’即为第二卡接件。安装工作底板时，将工作底板相对驱动组件9’沿马达轴11轴向移动，使得挡圈94’在工作底板的轴向作用力下产生径向弹性变形由第一位置运动至第二位置，以允许第一卡接件960进一步轴向移动至配接位置，第二卡接件94’即恢复形变，由第二位置回复至第一位置对第一卡接件960实现卡接，从而使工作底板相对驱动组件9’实现了锁定。拆卸工作底板时，使第二卡接件94’由第一位置运动至第二位置；再将工作底板与驱动组件9’轴向分离，第二卡接件94’由第一位置运动至第二位置由控制件22驱动控制。
实施例八
参照图52，本实施例具有与第一实施例类似的结构，其中相同的结构以同一编号表示，并不作赘述。砂光机100’包括主体部1a，释放组件2a，以及驱动 组件3a。其中主体部1a以马达轴11为中心的四个对角上分别设置有与机壳110相对固定的摆动脚固定件121，摆动脚12一端与摆动脚固定件121连接，另一端设有摆动脚接合部12a，摆动脚接合部12a通过紧固件18与摆动脚12固定在一起。
释放组件2a包括设置于主手柄102壳体内的开关20，相对开关20活动地连接在一起的开关扳机105，以及机壳110内靠近主手柄102的一侧设置的锁定件27，锁定件27靠近开关扳机105的一端设置有开孔27a，开关扳机105上设置有与开孔27a配接的圆柱26，这样，开关扳机105与锁定件27联动配接。锁定件27上远离开孔27a的另一端设置有锁定部38。
驱动组件3a包括输出头本体31，与输出头本体31紧配的轴承32，套设于输出头本体31、且相对输出头本体31沿马达轴11方向可产生位移的张紧环34a，以及与输出头本体31固定配接的支撑件37；其中支撑件37与张紧环34a之间设置有若干个弹性件35a。正常状态下，张紧环34a在弹性件35a的支撑作用下，远离支撑件37。输出头本体31上设置有与可选择地与锁定部38配接的卡槽31a，当开关扳机105触发时，锁定件27带动锁定部38向靠近主手柄102的方向移动，从而使锁定部38与卡槽31a脱开配接，锁定件27处于第一位置，驱动组件3a可自由的转动。当释放开关扳机105，开关扳机105在其自带的弹性件作用下复位，锁定件27带动锁定部38向远离主手柄102的方向移动，同时驱动组件3a由于惯性仍会保持旋转，直至锁定部38与卡槽31a对准，锁定件27将与卡槽31a卡接，锁定件27处于第二位置，将驱动组件3a锁定，驱动组件3a与锁定部38呈相对固定的连接，即驱动组件3a此时处于防转状态，从而方便工作底板的更换，例如拆卸板砂底板，安装以圆砂底板，或者拆卸圆砂底板，安装以板砂底板。
进一步参照图53，张紧环34a的外围面上分布有若干个槽口351，槽口351的两侧分别为槽壁352，其中，所有槽口351上的位于同一侧的槽壁352上分别设置有导向面353，张紧环34a的上端面设有与导向面353连接的连接面354，以及卡接面355，其中导向面353与卡接面355是倾斜方向相反的斜坡。支撑件37设置成一环形件，支撑件37的外围面设置成锥面371。
参照图54所示，板砂底板6a上靠近两端的位置分别设置有连接摆动脚12a的配接结构，该配接结构包括第一配接部51及第二配接部52，其中第二配接部52包括一对与摆动脚12a配合的抵接区域，以及连接两个抵接区域的弧形壁521，弧形壁521与两个抵接区域之间形成有弧形槽522，弧形槽522的其中一端设有一个限位壁523。第一配接部51实质上为一个设置于弧形槽522侧上方的抵靠壁。
砂光机100’设置有锁定装置，板砂底板6a相对主体部1a的位置通过锁定装置可进行锁定或者释放。锁定装置包括设置于板砂底板6a上的操作部61，以及位于弧形槽522的远离底板中心一侧的定位件126；在正常状态下，定位件126在弹性件(图中未示出)的作用力保持于凸出于弧形槽522的锁定位置，板砂底板6a能够相对主体部1a锁定；操作部61可操作地控制定位件126由锁定位置移动至释放位置，此时定位件126处于退出弧形槽522的位置，板砂底板6a能够从主体部1a释放锁定，从而可与主体部1a拆卸或分离。
砂光机100’的主体部1a四个对角上的摆动脚12a两两连接，并且分别与板砂底板6a的第二配接部52的位置相对应。两个相互靠近的摆动脚12a之间设置有弧形连接部124，弧形连接部124的中间部位设置有一个与弧形槽522滑动配接的凸块125。
进一步参照图55，圆砂底板4b和板砂底板6a的围绕中心圆槽47的区域设置有相同的用于与驱动组件3a配接部。配接部包括凸环54，凸环54沿周向分布有若干个与驱动组件3a配接的第二卡接部55，第二卡接部55由凸环54的上端壁径向向内伸展一定距离形成，第二卡接部55的数量分别与驱动组件3a中的张紧环34a上的槽口351相对应，以方便板砂底板6a或者圆砂底板4b与驱动组件3a配接。第二卡接部55一端设置成具有坡度的导向面551，卡接面552与导向面551相连接，卡接面552由第二卡接部55的内侧壁形成。凸环54的内侧壁上设置有若干个沿竖直方向延伸的限位部553，限位部553一端与卡接面552相连接。位于第二卡接部55下方凸环54的内侧壁上沿周向分布有若干个径向延伸的凸台559，凸台559的朝向中心圆槽47的一侧为凸台侧壁559a。
参照图56、图57所示，将板砂底板6a安装于砂光机100’的主体部1a时， 释放组件2a处于释放状态，锁定部38与输出头本体31的卡槽31a配接，从而工作头组件3a处于非转状态。此时需要先将摆动脚接合部12a之间的凸块125与板砂底板6a的弧形槽522相对后插入该弧形槽522中远离限位壁523的一端，然后按图中箭头R2所示方向旋转板砂底板6a，凸块125在弧形槽522中滑动。本实施例箭头R2所示的旋转方向为逆时针方向，但是旋转方向并不是本发明的一种限定方式，本领域技述人员是可以根据设计的需要作改变的。
参照图58所示，当板砂底板6a旋转至使其凸环54上的第二卡接部55与张紧环34a的槽口351相正对时，第二卡接部55上的导向面551会沿着张紧环34a上的导向面353爬坡，经过连接面354，直至第二卡接部55的内侧卡接面552爬至与张紧环34a卡接面355抵接啮合，从而阻止了板砂底板6a与驱动组件3a轴向分离；卡接面552与与张紧环34a卡接面355抵接啮合消除了驱动组件3a与工作底板之间的轴向间隙。此时，凸块125在弧形槽522中滑动至与限位壁523相抵接的位置，并且凸块125的侧端面与第一配接部51的内侧端面相抵接，此时摆动脚12a与第二配接部52一一对应抵接。另外，凸块125在弧形槽522中这一位置由定位件126在弹性件作用下进行限定，以阻止砂光机100’在工作过程中摆动脚122相对板砂底板6a沿弧形槽522滑动而产生晃动，从而使得摆动脚122只能带动板砂底板6a摆动，而不能作其它方式的运动。在整个工作底板的安装过程中，驱动组件3a的张紧环34a由弹性件35a支撑、且远离工作底板的初始位置沿马达轴11轴向靠近工作底板运动至第二位置，此时弹性件35a被压缩。一旦安装到位，操作者释放板砂底板6a，张紧环34a在弹性件35a的作用下，会带动板砂底板6a一起由第二位置回复至初始位置；此时，支撑件37的外围锥面371与工作底板的凸台侧壁559a相抵接，这样就消除了驱动组件3a与工作底板之间的径向间隙。在砂光机100’工作过程中，驱动组件3a带动板砂底板6a旋转，限位部553与张紧环34a的槽壁352啮合配接用于传递扭矩。
参照图59所示，将板砂底板6a从砂光机100’的主体部1a上拆卸时，需要按图中指示方向滑动操作部61，即解除定位件126对凸块125在弧形槽522滑动的限定；然后按箭头R2’所示方向旋转板砂底板6a一定角度，当凸块125滑 动至弧形槽522的始端，第二卡接件55的卡接面552与张紧环34a上的卡接面355进行脱开，从而允许板砂底板6a沿马达轴轴向与驱动组件3a进行分离、拆卸。本实施例箭头R2’所示的旋转方向为顺时针方向，但并不是本发明对实施例的一种限定，本领域技术人员可以进行设计更改。
综上所述，安装工作底板时，将工作底板4b,6a相对驱动组件3a沿马达轴11轴向移动至配接位置，然后将工作底板相对驱动组件3a旋转至锁定位置。拆卸板砂底板6a时，通过移动设置于板砂底板6a的操作部61解除板砂底板6a的位置锁定，使板砂底板6a绕底板中心线反向旋转，将板砂底板6a相对驱动组件3a沿马达轴11轴向分离。拆卸圆砂底板4b时，使圆砂底板4b绕底板中心线反向旋转，将圆砂底板4b相对驱动组件3a沿马达轴11轴向分离。
实施例九
参照图60，本实施例具有与第一实施例类似的结构，其中相同的结构以同一编号表示并不作赘述。不同之处在马达于砂光机100a的机壳110a内横向设置，输出轴11b与马达轴11a呈角度设置。本实旋例的输出轴11b与马达轴11a之间呈90度直角，当然，本领域技术人中也可以根据实际需求，将输出轴11b与马达轴11a设置成锐角或钝角。马达轴11a上设置有第一锥齿轮127，输出轴11b上设置有与第一锥齿轮127啮合的第二锥齿轮128，马达的旋转运动通过一对锥齿轮127、128传动至输出轴11b。本领域技术人员可以获知，本实施例的锥齿轮也可以其它传动装置或齿轮形式进行替换。
风扇14紧配于输出轴11b并具有一个提供旋转的偏心输出端141；驱动组件3通过轴承32偏心地连接于该偏心输出端141。工作底板包括圆砂底板和板砂底板与砂光机100a的主体部可拆卸地连接。
实施例十
参照图61、62及63所示，本实施例具有与第二实施例类似的结构，其中相同的结构以同一编号表示，并不作赘述。在本实施例中，砂光机还包括控制开关720及开关锁定结构740。
具体地，控制开关720包括触发件722与开关724，触发件722可在第一方向上滑动地设于机身1以抵持或脱离开关724。开关锁定结构740设于机身1， 可选择地限位触发件722，以使触发件722脱离或抵持开关724，使开关724在抵持触发件722的可启动状态与脱离触发件724的不可启动状态之间切换。当开关724处于可启动状态时，可通过按压触发件722而触发开关724以启动该砂光机。当开关724处于不可启动状态时，无法按压触发件722而触发开关724启动砂光机。
如此，触发件722可相对机身主体部1滑动而启动或断开开关724。当触发件722启动开关724时，操作者可通过触发件722触发开关724，当触发件722脱离开关724时，操作者无法通过触发件722触发开关724。如此，触发件722脱离开关724时，避免了误触开关724的安全隐患，保证了使用者的人身安全。
如图62、图63及图64所示，开关锁定结构740包括可沿第二方向滑动的第一开关锁定结构742。
如图62及图63所示，当工作底板未配接于驱动安装部时，第一开关锁定结构742抵持于触发件722，以使触发件722脱离开关724，从而使开关724处于不可启动状态中而无法启动该砂光机。在本实施例中，第二方向与第一方向垂直，且第一方向为与工作底板的轴线垂直，第二方向为与工作底板的轴线平行。
如图63、图64及图65所示，当工作底板配接于驱动安装部时，第一开关锁定结构742沿第二方向让位，从而使触发件722可向抵持开关724的一侧滑动。
开关锁定结构740还包括可沿第二方向滑动设置于机身主体部1的第二开关锁定结构744，该第二开关锁定结构744位于第一开关锁定结构742远离触发件722一侧。释放组件2可择一地处于工作底板与驱动安装部配接的第一位置及工作底板与驱动安装部分离的第二位置。释放组件2由第二位置切换至第一位置时，驱动第一开关锁定结构742由与触发件722脱离位置滑动至与触发件722抵持。
具体地，当工作底板固接于驱动安装部上时，第二开关锁定结构744脱离触发件722，以使触发件722可抵持于开关724，而使开关724处于可启动状态。当工作底板未固接于驱动安装部而由机身1待拆卸时，第二开关锁定结构744 抵持触发件722，以使触发件722脱离开关724，使开关724处于不可启动状态，以防止在拆卸过程中因误操作使电动工作被启动。
如此，当工作底板固接于驱动安装部上时，触发件722抵持于开关724使开关724处于可启动状态。当工作底板未连接于驱动安装部上，或并未与机身1固接但仍连接于机身1上待拆卸时，触发件722均脱离开关724，使开关724处于不可启动状态。
请参阅图61、图62及图63，具体地，第一开关锁定结构744可抵持触发件722的一端设有相邻的第一开口7422与第一抵持部7424，且第一开口7422位于第一抵持部7424靠近工作底板的一侧，第一开关锁定结构相对机身1在第二方向上移动，从而使第一开口7422或第一抵持部7424择一地与第一锁定结构对应。
当工作底板未连接于驱动安装部时，第一开关锁定结构742沿第二方向下落，第一抵持部7424向靠近工作底板方向移动而抵持于触发件722，从而使触发件722无法继续滑动而处于断开位置。当工作底板连接于驱动安装部时，第一开关锁定结构742在工作底板的抵持下向上(即远离工作底板方向)移动，从而使触发件722沿第一方向可穿过第一开口7422。
如此，当驱动安装部上未连接有工作底板时，第一开关锁定结构742可阻挡触发件722沿第一方向滑动以脱离开关724，避免在未连接工作的情况下启动该砂光机。当驱动安装部连接有工作底板时，控制开关720可从第一锁定结构的第一开口7422中穿过。
如图61、图63、图64及图65所示，具体地，解锁扳手222一端铰接于机身1，且以其与机身1的铰接点为转动中心转动。当解锁扳手222转动至第一位置时，第二开关锁定结构744抵持解锁扳手222，并在解锁扳手222的带动下向远离工作底板方向移动，形成与第一开口7422对应的第二开口7442，第一开口7422与第二开口7442连通以共同形成移动通道。控制开关720可从该移动通道中穿过而处于连接位置，从而可处于连接状态而可启动砂光机。
当解锁扳手222转动至第二置时，第二开关锁定结构744脱离解锁扳手222，并在自身重力作用下向靠近工作底板方向移动，进而接触并抵持于机身1，从而 封闭第二开口7442，使触发件722即使在通过第一开口7422的情况下也受到阻挡而无法抵持于开关724。
上述砂光机，开关锁定结构740可根据工作底板的不同情况而锁定或解锁控制开关720，避免工作人员在机身1未固接有工作底板的情况下启动该砂光机而造成安全隐患。
实施例十一
参照图66、图67所示，本实施例是直流手持式砂光机100b，包括主体部1b，以及连接于主体部1b的电池包10。其中主体部1b包括机身马达809，以及动力组件；机身包括头壳806、以及握持部800；动力组件，设置于机身头壳806中；动力组件包括马达809，以及将马达809的动力至工作底板808的驱动组件，马达809沿砂光机100b的高度方向竖直设置。工作底板808，安装于头壳806，本实施例的工作底板808是圆砂底板。握持部800远离头壳806的一端设置有安装部800a，电池包10可拆卸地连接于安装部800a；头壳806、握持部800、电池包10沿砂光机100b纵长方向依次设置。机身进一步包括连接于头壳806的集尘盒818，集尘盒818沿砂光机的高度方向位于握持部800的下侧，集尘盒818与握持部800的延伸方向大致平行。
如此，工作底板808在头壳806的底端，马达809及驱动组件收容于头壳806内，安装部800a位于机身一侧，且与握持部800连接，从而使电池包10与马达16相对地设置于机身握持部800的两端，握持更加便利，且符合人体工学，提高操作者使用该手持式砂光机100b的稳定性。
具体地，该机身可为注塑件，呈壳状，前端为头壳806，中间为握持部800后端为安装部800a，本实施例中机身为两个半壳构成。马达809为电机，驱动组件包括偏心传动轴以及连接于偏心轴承以及平衡块(图未标)，马达809收容于头壳806的上部，驱动组件收容于头壳806的下部，以将马达809的旋转输出传递至工作底板808。握持部800上设置有控制电池包10向马达809提供动力的开关组件(图未标)，操作者在正常的握持方式下，手持的指尖位于开关组 件附近。
本实施例中，安装部800a包括用于装设电池包10的安装槽，电池包10卡入安装槽内，从而实现固定。安装部800a还具有与电池包20对接的接口，以实现电导通。当然，在其他一些实施例中，还可以采取其他的固定方式，例如，安装位为电池腔，电池包10容置于电池腔内，或者电池包10通过导轨或其他连接装置装设于安装位。
优选地，该工作底板808位于马达809的输出轴的一端，安装部800a位于马达809的输出轴的一侧。其中，该工作底板808位于头壳806的底端，且位于马达809的输出轴的一端，也就是说，马达809沿如图66、67所示的上下方向布设。如此，在操作者握持住握持部800时，头壳806一边的重力方向沿竖直方向向下，从而使操作者操作更加舒适，不易感到疲劳。
优选地，该手持式砂光机100b在连接电池包10后，重心位于握持部800或靠近握持部的头壳806部位。
手持式手持式砂光机100b的重量主要集中于以下几个构件：马达、驱动组件、工作底板等。马达、驱动组件、工作底板沿竖直方向，使机身的重心较为集中。将用于安装电池包10的安装部800a与头壳806相对设置，从而使电池包10连接于安装部800a后，整机的中心向机身握持部800集中，进而操作者正常握持情况下即可有效地在手持式砂光机100b的重力作用下挤压被加工工件，提高工作效率且操作更加舒适。
优选地，该电池包10安装于安装部800a的安装方向与马达809的输出轴轴向方向平行。本实施例中，电池包10具有纵长延伸的电池包主体，该电池包主体的纵长延伸方向与马达809的输出轴轴线方向平行。在安装过程中，将电池包主体纵长延伸的一端沿与马达809的输出轴轴向方向平行的方向插入安装部800a远离头壳806另一侧的安装槽内。即沿竖直方向插入，如此，使用便利，且进一步地使头壳806一侧与安装部800a一侧可有效平衡，整机的中心向机身握持部800集中，保证操作的舒适性及稳定性。
应当理解的是，在其他一些实施例中，该电池包10安装于安装位的安装方向也可与马达809的输出轴轴线方向呈夹角设置。具体地，电池包10安装于安 装位的安装方向相对马达809的输出轴轴向方向，即竖直方向，向前或向后倾斜一定角度。
优选地，该头壳806与安装部800a之间还设有加强部828。本实施例中，该加强部828为连接筋板，加强部828与握持部800间隔设置。该加强部828一端连接于头壳806的下端一侧，另一端连接于安装部800的下端一侧。作为一个较佳的实施方式，该加强部828大致与握持部800平行，进一步地增强该手持式手持式砂光机100b的连接强度及稳定性。
需要指出的是，本实施例中，头壳806、握持部800、加强部828及安装部800a均为中空的壳体结构，即机身由两个半壳状壳体配合而成。如此，节省了成本，且降低了机身的重量，提高了使用的便利性。
上述砂光机100b，工作底板808在头壳806的底端，马达809及驱动组件收容于头壳806内，安装部800a位于机身一侧的握持部800末端，从而使电池包10与马达809相对分体设置，使操作者正常握持情况下即可有效保持平衡，操作更加舒适、便利，且符合人体工学，提高操作者使用该手持式砂光机的稳定性。驱动组件还包括与工作底板808配接的张紧环805，用于支撑张紧环805的支撑盘811，以及设置于支撑盘811上用于抵接张紧环805的弹簧8111，其中张紧环805上设置吊钩面851，工作底板808上相应地设置有吊钩面881，当工作底板808没有安装于头壳806时，工作底板808的吊钩面881没有勾住张紧环805的吊钩面851，张紧环805在弹簧8111的作用下处在高位。当工作底板808安装于头壳806时，吊钩面881与吊钩面851相互啮合，张紧环805下移。
砂光机100b主体部1b还设置有摆动组件，用于当工作底板808更换为板砂底板时，将板砂底板连接于头壳806从而可以作板砂使用。摆动组件包括摆动脚807a、与摆动脚807a相连接的摆动板807，以及与摆动板807相连接的限位柱807b，限位柱807b与板砂底板808配接。本实施例中摆动脚807a、摆动板807及限位柱807b为一体结构。
砂光机100b设置有控制系统，包括设置于头壳806的顶部且远离握持部800 一端的操作件，本实施例的操作件设置成操作扳手的形式，具体地，为枢转设置的凸轮扳手841，凸轮扳手841面向头壳806的一侧设置有抵触部412；以及设置在凸轮扳手841与张紧环805之间的传动装置，用于将凸轮扳手841的枢转运动转换并进行传递，使张紧环805沿马达轴线方向作移动。传动装置包括设置在头壳806内与凸轮扳手841的凸轮部841a抵接的凸轮抵杆842，由凸轮抵杆842驱动作枢转运动的压板843、以及由压板843驱动沿马达轴线方向移动的压块844。凸轮抵杆842位于头壳806内马达809的一侧，凸轮抵杆842由凸轮扳手841的凸轮部841a驱动，能够在头壳806内沿马达轴线的方向运动，从而驱动压板843绕转轴432相对头壳806作枢转运动，压板843的运动驱动压块844沿平行于马达轴线的方向运动，压块844的底端面442通过与张紧环端面852抵接从使推动张紧环805沿马达轴线的方向运动。本实施例的压板843设置为大致形成一环形臂，其环形臂相对的两侧分别设置有通孔431，一对压块844分别通过成形于其上的凸柱441与压板843的通孔431配接，压块844如此设置使得能将压板843的运动通过压块844更稳定且均匀的传递至张紧环805。头壳806内与凸轮抵杆842相对的马达809另一侧设置有沿头壳806高度方向延伸的第二互锁件803，并且第二互锁件803能够沿马达轴线的方向运动；第二互锁件803的顶部枢转设置有第一互锁件802。
第二互锁件803大致为杆状件，由高度方向分别设置有阻挡部831，支撑部832，定位部833和抵触部835，其中支撑部832上套设有弹性件834。第一互锁件802设置于大致位于头壳806与机身握持部800的交界处，第一互锁件802大致呈一翘板件，包括分别位于枢转轴两端的阻挡部822以及抵触部821。握持部800内设置有主开关804，触发扳机801设置于握持部800上，方便操作者握持砂光机100b时滑动操作。触发扳机801朝向第一互锁件802的一侧设置有抵接部，用于与第一互锁件802抵接时阻止触发扳机801移动。抵接部包括分别大致平行延伸 设置的第一延伸部812及第二延伸部813。本实施例的抵接部与触发扳机801一体设置，从而结构紧凑，操作方便。当然本领域技术人员也可以将抵接通部与触发扳机801分体设置。其中第二延伸部813相对第一延伸部812更靠近主开关804，第二延伸部813的运动直接导致主开关804在断开与触发状态之间变化。握持部800内设置有用于容纳第一延伸部812并允许在其中移动的第一通道133，以及容纳第二延伸部813并允许在其中移动的第二通道122。
进一步参照图68所示，当凸轮扳手841枢转至与头壳806顶部闭合的位置，凸轮扳手841的抵触部412抵接头壳806顶部表面，而第一互锁件802的抵触部821则伸入设置于凸轮扳手841的抵触部412上方在卡槽824内，此时第二通道122打开，触发扳机的第一延伸部812与第二互锁件阻挡部822相分离。此时，由于工作底盘808已安装到位，张紧环5下移，第二互锁件803在弹性件834的弹性偏压力作用向下移动，此时第二通道122打开，第二互锁件803的定位部833移动至与头壳806内筋板相抵接。第一通道133及第二通道122的打开，从而允许触发扳机801朝向图中箭头M所示方向移动从而触发主开关804。
参照图69所示，当触发扳机801移动至触发主开关804的位置时，触发扳机的第一延伸部812与第一互锁件802阻挡部822相抵接，相应地，触发扳机的第二延伸部813移动至第二互锁件803的正上方并且阻断了第二互锁件803向上移动的通路。触发扳机801、第一互锁件802、凸轮扳手841如此设置，使得主开关804被触发启动时，第二互锁件803的阻挡部822及抵触部821都受限制而无法运动，从而使得与抵触部821的通过卡槽824卡接的凸轮扳手841也无法枢转至打开状态，张紧环805无法下压而不能使工作底板808从驱动组件上拆除。从而实现了在主开关804启动的状态下，由于触发扳机801、与第一互锁件802及凸轮扳手841之间形成第一种互锁关系，使得工作底板808无法 与张紧环805分离，从而保证的工作底板808的安全运作。
参照图70所示，只有当触发扳机801沿箭头M’所示方向移动至初始位置时，也就是说，触发扳机801移动至使主开关804断开的位置时，第一通道133和第二通道122分别打开，从而提供第一互锁件802的阻挡部822枢转的空间，第一互锁件802在压簧815的作用下产生枢转，从而阻挡部822将第二通道122进行了阻挡，第一互锁件802枢转的同时使得其抵触部821与凸轮扳手841的卡槽824脱开，从而凸轮扳手841被解除了锁定可以沿箭头R所示方向绕其枢轴枢转。当凸轮扳手841枢转至时预设极限位置时，凸轮扳手841的枢转运动通过传动装置传递至张紧环805，即张紧环805被下压移动至使工作底板808可以从张紧环805上脱离的位置。
一旦工作底板808与张紧环805分离，张紧环805在弹簧8111的作用下，克服弹性件834的作用力向上移动，从而将第二互锁件803向上顶起，此时第二互锁件803的定位部833移动至与头壳806内筋板分离，第二互锁件803的顶部伸入第二通道122阻挡了第二延伸部813沿箭头M方向移动，也就是说，工作底板808在拆卸后或者没有安装配接至张紧环805时，触发扳机801无法移动，从而无法触发主开关804。这就在第二互锁件803、触发扳机801、张紧环805之间又形成第二种互锁关系。
参照图71所示，当工作底板808没有连接于张紧环805时，即使凸轮扳手841枢转到闭合位置，由张紧环端面852与第一互锁件的抵触部835抵接从而将第二互锁件803顶起，第二通道122裤第二互锁件803阻挡，从而触发扳机801仍然无法沿箭头M方向移动而触发主开关804。
综上，第一种互锁关系，解决了砂光机工作时，保证了工作底板的安全运行；第二种互锁关系，体现了只有工作底板808安装到位的前提下，即工作底 板802与张紧环805配接，且凸轮扳手841回复至闭合位置时，主开关804才能被启动执行开机工作，保证了砂光机工作的有效性。
其中，作为操作件的凸轮扳手841相对壳体转动可以有固定的枢转轴，也可以枢转轴不固定，也就是说，操作件可以相对壳体翻转设置。
实施例十二
参见图72至图75所示，作为本发明又一实施例中的砂光机，包括机壳900、设置在机壳900内的电机、以及设置在机壳900下方的打磨元件，即工作底板902对物件进行砂光操作。控制器设置在机壳900上，电机与控制器电连接，由控制器控制，控制器可以控制电机的转速及转向。所述砂光机还包括检测传感器905，检测传感器905用于检测工作底板902是否安装，当工作底板902处于安装状态时，检测传感器905输出第一检测信号；当工作底板902处于非安装状态时，检测传感器905输出第二检测信号，当检测传感器输出第二检测信号时，控制器控制电机不运转。
砂光机通过检测传感器905检测工作底板902是否安装，对电机是否启动进行控制。当工作底板902未安装时，控制电机使其无法运转，防止电机异常启动运转，带动裸露的输出端旋转产生安全问题。
在一个实施例中，检测传感器905包括检测元件，工作底板902上安装有触发元件，当检测元件感应到触发元件时，检测传感器输出第一检测信号，此时电机能够运转。当检测元件未感应到触发元件时，检测传感器输出第二检测信号，控制器控制电机不运转。
具体地，检测元件与触发元件为接触式触发。优选地，检测元件为微动开关，触发元件为触发杆件966。当工作底板902处于安装状态时，触发杆件966能够与微动开关接触，并使微动开关输出第一检测信号，此时控制器可以控制电机运转。当工作底板902处于未安装状态时，触发杆件966与微动开关脱离，并使微动开关输出第二检测信号，此时控制器控制电机不运转。如图75，具体地，微动开关串联于控制器与电机之间的控制电路中，通过微动开关闭合或断开控制电路。当未检测到工作底板902安装时，微动开关断开控制电路，此时 控制器无法控制电机启动运转。砂光机上还设置有主开关909，主开关909与控制电路电连接，用于控制控制电路的通断。当工作底板902安装后，微动开关处于接通状态，此时开启的主开关，控制电路连通，控制电机运转带动工作底板902进行砂光操作。当将工作底板902卸载后，微动开关处于断开状态，此时即使开启主开关，控制电路也是处于断开状态，此时电机不能运转。
触发杆件966的位置还可以设置在砂光机的壳体900上。具体地，砂光机还包括驱动盘907，电机的输出端与驱动盘907连接，驱动盘907与工作底板902连接，触发杆件966设置在砂光机的摆动脚906与驱动盘907之间，且与工作底板902垂直设置。工作底板902安装时，工作底板902将触发杆件966顶起，进而接通微动开关，微动开关输出第一检测信号，即连通控制电路，控制器能够控制电机运转。工作底板902卸载后，触发杆件966复位，微动开关处于断开状态，微动开关输出第二检测信号，进而断开控制电路，控制器控制电机不运转。具体地，壳体900上设置通孔，导杆一端从通孔伸出，能够控制微动开关接通和断开，工作底板902安装后，工作底板902上表面将导杆顶起。导杆上设置弹性件，如弹簧，可以在工作底板902卸载后，通过弹性力使导杆复位脱离微动开关。
检测元件与触发元件也可以为非接触式触发。优选地，检测元件为霍尔传感器，触发元件为磁钢。当霍尔传感器检测到磁钢时，霍尔传感器输出第一检测信号此时控制器可以控制电机运转。当霍尔传感器未检测到磁钢时，霍尔传感器输出第二检测信号，此时控制器控制电机不运转。检测传感器500还可以为电磁式、光电式、差动变压器式、电涡流式、电容式、干簧管式等非接触式传感器，通过上述检测传感器检测工作底板902是否安装。
工作底板902包括砂板、砂轮、砂带或抛光轮。
进一步地，如图72和图74，砂光机还设置有识别传感器908，识别传感器908与控制器电连接。识别传感器908用于识别工作底板902是否设置有感应元件981。当工作底板902上安装有感应元件981时，识别传感器908输出第一识别信号。当工作底板902上没有安装感应元件981时，识别传感器908输出第二识别信号。控制器能够根据第一识别信号和第二识别信号相对应地控制输出 电机的第一速度和第二速度。
通过采用识别传感器908识别感应元件981的方式，可以智能控制改变电机的运行速度。更换不同类型的工作底板902后，不再需要人工调整，通过识别传感器908的识别，即能通过控制器将电机速度正确调整到不同工作底板902所需的合理速度上，智能方便，安全可靠，效率高。
第一速度和所述第二速度预先设定在控制器内。
识别传感器908也可以识别不同的感应元件产生不同的识别信息，识别传感器800将识别信息传递给所述控制器，控制器根据不同的识别信息控制电机的运行速度。识别传感器908可以为RFID传感器，感应元件为射频标签，RFID传感器读取不同的射频标签，将识别信息传递给控制器，控制器根据不同的识别信息控制电机，使电机以不同的速度运行。
其中，砂板为圆砂板或板砂板。安装不同形状的砂板，针对不同的研磨工况，实现多功能研磨。板砂板和圆砂板在研磨过程中所需要的转速是不同的，一般圆砂板高速旋转，板砂板低速旋转。为了实现按照不同砂板进行智能配速的功能，圆砂板和板砂板中，一个设置有感应元件981，一个无感应元件981，识别传感器908因此可以通过有无感应元件981识别出是板砂板还是圆砂板。识别传感器908进而控制控制器改变电机的预设速度，控制电机以不同砂板所需的合适速度运转。
感应元件981优选设置在板砂板上，因为圆砂板为圆形对称结构，设置在圆砂板上时，需要将圆砂板旋转到合适位置使感应元件981与识别传感器908相对，板砂板922安装时相对容易使感应元件981与识别传感器908相对。此时第二速度大于第一速度，更换为圆砂板时，识别传感器908没有识别到感应元件981，识别传感器908输出第二识别信号，控制器控制电机以第二速度运转，为高速运转。更换为板砂板时，识别传感器908识别到感应元件981时，识别传感器908输出第一识别信号，控制器控制电机以第一速度运转，为低速运转。
识别传感器908优选为霍尔传感器，感应元件981为磁钢。当霍尔传感器检测到带有磁钢的板砂板时，霍尔传感器输出第一识别信号，使控制器控制电机速度为第一速度。识别传感器908还可以为光电传感器，优选为反光板型光 电开关，感应元件981为反光板，当没有带反光板的圆砂板被安装时，反光板型光电开关发出的光被圆砂板挡住无法回收，此时反光板型光电开关输出第二识别信号，使控制器控制电机速度为第二速度。
砂光机还包括一连接柱982，连接柱982具有一端向工作底板902延伸，识别传感器908设置于连接柱982靠近工作底板902的一端。
砂光机还包括驱动盘907，电机的输出端与驱动盘907连接，驱动盘907与工作底板902连接，在砂光机的摆动脚906与驱动盘907之间设置连接柱982。
识别传感器908和感应元件981正对设置。
实施例十三
参照图76、77所示，本实施例是第十一实施例的砂光机安全互锁机构的一种变形，本实施例中安全互锁机构省去了第二互锁件，并且以电子控制装置替代了第一互锁件，其它相同的结构以同一编号表示且不作赘述。
本实施例中的电子控制装置设置于壳体内，也就是第十一实施例中的第一互锁件的位置，具体地，位于握持部与头壳部的连接位置处，电子控制装置包括第一功能模块、以及第二功能模块。其中第一功能模块包括用于检测操作件、即凸轮扳手841位置的位置传感器，以及通电后产生磁性的电磁铁。另外凸轮扳手841的自由端与第一功能模块配接的部位设有磁铁824a。本实施例的第二功能模块包括一个与开关804串联的联动开关822a，联动开关822a与开关804同时由触发件801触发。
参照图77所示，其中本实施例中的位置传感器设置成微动开关821a的形式。当凸轮扳手841处于与第一功能模块配接的第一状态时，凸轮扳手841的自由末端触发微动开关821a；此时如果操作触发件801使其向开关804方向移动则能够触发开关804；一旦开关804处于触发状态，联动开关822a同时被触发件801触发，从而使砂光机的工作电路被导通，电磁铁通电而产生磁性与凸轮扳手841的自由端的磁铁824a磁性相吸，从而阻止处于第一状态的凸轮扳手841转换至第一功能模块821a分离的第二状态。
当凸轮扳手841处于与第一功能模块分离的第二状态，微动开关821a处于断开状态，因此即使触发件801触发，电路仍然无法导通，因此，马达无法被 启动。
实施例十四
参照图78至图80所示，本实施例是十三实施例中砂光机安全互锁机构的另一种变形。相同的结构以同一编号表示且不作赘述。
操作件841a相对砂光机壳体(未图示)滑动地设置，当操作件841a沿图78所示的箭头M1所示的方向由第一状态滑动至第二状态，触发件801a能够沿箭头M2所述的方向触发开关804a。操作件841a由第一状态向第二状态移动过程中克服弹簧921作用力。当开关804a处于触发位置时，由于触发件801a的一端与操作件841a的凹槽912相啮合，从而阻止了操作件841a由第二状态向第一状态滑动。
参照图79所示，当需要更换操作件841a的状态时，即由第二状态向第一状态转换时，需要先释放触发件801a，使触发件801a在自带弹性力的作用下沿与箭头M2相反方向回复至断开开关804a的位置，也就是说，使触发件801a的一端与操作件841a的凹槽912相脱开啮合。
参照图80所示，当触发件801a的一端与操作件841a的凹槽912相脱开，操作件841a在弹簧921回复力下沿与箭头M1相反的方向由第二状态转换至第一状态。此时触发件801a的一端与操作件841a的一端相抵接，即操作件841a阻止开关被触发件801a触发。
以上所述实施例仅表达了本发明的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明专利的保护范围应以所附权利要求为准。

Claims (40)

  1. 一种砂光机，包括：
    机身，所述机身包括壳体、设置于所述壳体内的马达、控制马达的开关机构、以及由马达驱动旋转的驱动组件；
    以及与驱动组件配接的工作底板；
    其特征在于：所述机身还包括互锁机构，所述互锁机构包括相对壳体活动设置的操作件，所述操作件可操作地在第一状态与第二状态之间转换，当所述操作件处于第一状态时，所述互锁机构允许所述开关被触发，并且当所述开关处于触发状态时，所述操作件被阻止从第一状态转换至第二状态；当所述操作件处于第二状态时，所述互锁机构阻止所述开关被触发。
  2. 根据权利要求1所述的砂光机，其特征在于，所述开关机构包括触发件以及开关，所述互锁机构包括与操作件可选择配接或者分离的第一互锁件；当所述操作件处于第一状态时，所述第一互锁件与操作件配接，所述第一互锁件允许所述触发件触发所述开关，并且当所述开关处于触发状态时，所述操作件被阻止与第一互锁件分离；当所述操作件处于第二状态时，所述第一互锁件与操作件分离，所述第一互锁件阻止触发件触发所述开关。
  3. 根据权利要求2所述的砂光机，其特征在于，所述互锁机构还包括能够与第一互锁件抵接或分离的抵接件，当所述操作件处于第一状态时，所述抵接件与第一互锁件分离，当所述操作件处于第二状态时，所述抵接件与第一互锁件抵接，从而阻止所述触发件触发所述开关。
  4. 根据权利要求3所述的砂光机，其特征在于，所述抵接件与所述触发件一体设置。
  5. 根据权利要求1所述的砂光机，其特征在于，所述操作件相对所述壳体翻转设置。
  6. 根据权利要求5所述的砂光机，其特征在于，所述操作件设置成凸轮扳手，所述凸轮扳手包括手柄部以及凸轮部，所述凸轮部与所述壳体连接，所述手柄部包括一自由端。
  7. 根据权利要求2所述的砂光机，其特征在于，所述壳体包括收容马达的头壳部，以及设置手柄的握持部，所述操作件设置于所述头壳部，所述触发件设置 于所述握持部。
  8. 根据权利要求7所述的砂光机，其特征在于，所述触发件沿握持部的延伸方向滑动地设置，当所述第一互锁件与操作件配接时，所述第一互锁件允许所述触发件滑动；当所述第一互锁件与操作件分离时，所述第一互锁件阻止所述触发件滑动。
  9. 根据权利要求3所述的砂光机，其特征在于，所述第一互锁件相对所述壳体枢转设置，所述互锁机构还包括与所述第一互锁件抵接的弹性件，当所述操作件与第一互锁件配接时，所述第一互锁件克服所述弹性件偏压力由初始位置枢转至工作位置；当所述操作件与第一互锁件分离，所述第一互锁件受弹性件的偏压力作用由工作位置回复至初始位置。
  10. 根据权利要求9所述的砂光机，其特征在于，所述第一互锁件包括能够与抵接件抵接的第一端，以及能够与操作件啮合的第二端；当所述第一端与抵接件抵接时，所述第一互锁件阻止触发件沿第一方向运动；当所述第二端与操作件啮合时，所述第一互锁件允许触发件沿第一方向运动从而触发所述开关，并且当开关处于触发状态时，所述第一互锁件阻止所述操作件枢转。
  11. 根据权利要求10所述的砂光机，其特征在于，所述第二端设置有抵触部，所述操作件上对应抵触部设置有卡槽，当所述第二端与操作件啮合时，所述抵触部伸入所述卡槽。
  12. 根据权利要求1所述的砂光机，其特征在于，所述工作底板包括至少两种不种形状的底板，所述底板可选一的与所述驱动组件分离或者配接。
  13. 一种砂光机，包括：
    机身，所述机身包括壳体、设置于所述壳体内的马达、控制马达的开关机构、以及由马达驱动旋转的驱动组件，所述马达具有马达轴线；
    以及工作底板，所述工作底板可选择与所述驱动组件分离或者配接；
    其特征在于：所述砂光机还包括互锁机构，所述互锁机构包括相对壳体活动设置的操作件，所述操作件可操作地在第一状态与第二状态之间转换，当所述操作件处于第一状态时，所述互锁机构允许所述开关被触发，并且当所述开关处于触发状态时，所述工作底板被阻止与机身分离或者配接；当所述操作件处于 第二状态时，所述互锁机构允许所述工作底板与机身分离或者配接，并且阻止所述开关被触发。
  14. 根据权利要求13所述的砂光机，其特征在于，所述开关机构包括触发件以及开关，所述互锁机构包括与操作件可选择配接或者分离的第一互锁件；当所述操作件处于第一状态时，所述第一互锁件与操作件配接，所述第一互锁件允许所述触发件运动以触发所述开关，并且当所述开关处于触发状态时，所述操作件被阻止与第一互锁件分离；当所述操作件处于第二状态时，所述第一互锁件与操作件分离，所述第一互锁件阻止触发件运动。
  15. 根据权利要求14所述的砂光机，其特征在于，所述互锁机构还包括能够与第一互锁件抵接或分离的抵接件，当所述操作件处于第一状态时，所述抵接件与第一互锁件分离，当所述操作件处于第二状态时，所述抵接件与第一互锁件抵接，从而阻止所述触发件触发所述开关。
  16. 根据权利要求15所述的砂光机，其特征在于，所述抵接件与所述触发件一体设置。
  17. 根据权利要求14所述的砂光机，其特征在于，所述第一互锁件能够在与操作件分离的初始位置和与操作件配接的工作位置间枢转运动。
  18. 根据权利要求17所述的砂光机，其特征在于，所述第一互锁件的枢转轴线与第一互锁件相垂直。
  19. 根据权利要求15所述的砂光机，其特征在于，第一互锁件包括靠近抵接件的第一端，以及靠近操作件的第二端，当所述第一互锁件处于初始位置时，所述第一端与抵接件抵接以阻止触发件运动；当所述第一互锁件处于工作位置时，所述第一端与抵接件脱开抵接以允许触发件运动从而触发所述开关，所述第二端与操作件啮合。
  20. 根据权利要求19所述的砂光机，其特征在于，当所述触发件运动至触发开关的位置，所述抵接件与第一端抵接以阻止第一互锁件运动。
  21. 根据权利要求13所述的砂光机，其特征在于，所述互锁机构还包括设置于触发件与工作底板之间的第二互锁件，所述第二互锁件能够在靠近触发件的第一位置和远离触发件的第二位置之间运动；当所述工作底板与机身配接时，所 述第二互锁件处于第二位置，第二互锁件允许触发件运动；当所述工作底板与机身分离时，所述第二互锁件处于第一位置以阻止所述触发件运动。
  22. 根据权利要求21所述的砂光机，其特征在于，所述第二互锁件在第一位置与第二位置之间作线性运动。
  23. 根据权利要求22所述的砂光机，其特征在于，所述第二互锁件作平行于马达轴线的性线运动。
  24. 根据权利要求21所述的砂光机，其特征在于，所述第二互锁件平行于马达轴线设置。
  25. 根据权利要求13所述的砂光机，其特征在于，所述壳体包括收容马达的头壳部，以及设置手柄的握持部，所述操作件设置于所述头壳部，所述触发件设置于所述握持部。
  26. 根据权利要求25所述的砂光机，其特征在于，所述触发件沿握持部的延伸轴线滑动设置。
  27. 根据权利要求13所述的砂光机，其特征在于，所述操作件在第一状态与第二状态转换时相对所述壳体翻转运动。
  28. 根据权利要求27所述的砂光机，其特征在于，所述操作件相对壳体作枢转转动，所述操作件的枢转轴线与所述操作件相垂直。
  29. 根据权利要求27所述的砂光机，其特征在于，所述操作件设置成凸轮扳手，所述凸轮扳手包括手柄部以及凸轮部，所述凸轮部与所述壳体连接。
  30. 根据权利要求29所述的砂光机，其特征在于，所述驱动组件包括用于与工作底板配接的张紧环，所述操作件驱动张紧环作线性运动。
  31. 根据权利要求30所述的砂光机，其特征在于，所述机身还包括连接张紧环的传动装置，通过所述传动装置，所述操作件驱动张紧环作平行于马达轴线的性线运动。
  32. 根据权利要求30所述的砂光机，其特征在于，所述操作件与第一互锁件配接时，所述张紧环处于靠近马达的高位；所述操作件与第一互锁件分离时，所述所述张紧环处于远离马达的低位，从而使所述工作底板可操作地与所述张紧环配接或者分离。
  33. 根据权利要求32所述的砂光机，其特征在于，所述驱动组件进一步包括用于支撑所述张紧环的支撑盘，以及设置于张紧环与支撑盘之间的弹性件，所述弹性件为张紧环提供向所述高位运动的偏压力。
  34. 根据权利要求30所述的砂光机，其特征在于，所述张紧环上设置有第一配接件，所述工作底板上设置有用于与第一配接件卡接的第二配接件，当所述工作底板与所述张紧环配接，所述第一配接件与第二配接件沿马达轴轴线方向至少部分重叠。
  35. 根据权利要求32所述的砂光机，其特征在于，当所述操作件由与第一互锁件分离的位置向与第一互锁件配接的位置枢轴时，所述张紧环由低位运动至高位，从而能够使得与张紧环配接的工作底板锁紧于所述机身。
  36. 一种砂光机的工作底板拆装方法，其特征在于，所述砂光机包括壳体、设置于所述壳体内的马达、控制马达的开关机构、由马达驱动旋转的驱动组件、以及活动地设置于所述壳体的操作件，所述开关机构包括开关、以及用于触发或断开所述开关的触发件，所述操作件可操作地在第一状态与第二状态之间转换，当所述操作件处于第一状态时，所述开关允许被触发，当所述操作件处于第二状态时，所述开关被阻止触发；所述拆装方法包括如下操作步骤：在所述开关断开时操作所述操作件使之处于第二状态；将所述工作底板沿马达轴线方向移动至与驱动组件配接或分离。
  37. 根据权利要求36所述的砂光机的工作底板拆装方法，其特征在于，所述拆装方法还包括如下操作步骤：操作所述操作件使其处于第一状态。
  38. 根据权利要求36所述的砂光机的工作底板拆装方法，其特征在于，操作所述操作件为转动所述操作件。
  39. 一种砂光机的操作方法，其特征在于，所述砂光机包括壳体、设置于所述壳体内的马达、控制马达的开关机构、以及活动地设置于所述壳体的操作件，所述开关机构包括开关、以及用于触发或断开所述开关的触发件，所述操作件可操作地在第一状态与第二状态之间转换，当所述操作件处于第一状态时，所述开关允许被触发，当所述操作件处于第二状态时，所述开关被阻止触发；所述操作方法包括如下操作步骤：操作所述操作件使之处于第一状态；操作所述 触发件使之触发所述开关。
  40. 根据权利要求39所述的砂光机的工作底板操作方法，其特征在于，操作所述操作件为转动所述操作件。
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