CN109746484A - Power tool - Google Patents
Power tool Download PDFInfo
- Publication number
- CN109746484A CN109746484A CN201711068966.9A CN201711068966A CN109746484A CN 109746484 A CN109746484 A CN 109746484A CN 201711068966 A CN201711068966 A CN 201711068966A CN 109746484 A CN109746484 A CN 109746484A
- Authority
- CN
- China
- Prior art keywords
- core
- power tool
- shell
- nut
- fixing sleeve
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 210000000078 claw Anatomy 0.000 claims abstract description 39
- 238000007599 discharging Methods 0.000 claims abstract description 3
- 238000005452 bending Methods 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
Abstract
The present invention relates to a kind of power tools, comprising: shell；Motor；Main shaft；Drill chuck, including connect with main shaft core, be actively set to the multiple claws and operation set of core, operation set is operably driven claw with respect to core movement, is supported in the workpiece of core for locking or discharging；Fixing sleeve, the connection relative to core without rotation, for operationally core to be fixed with respect to shell, fixing sleeve be set to shell and and shell it is least partially overlapped in the projection on main-shaft axis.Above-mentioned power tool, when the relatively fixed set of operation set is in rotary state, claw can move with respect to core and gather or open with clamp or release workpiece.After claw opens, workpiece can be inserted into multiple claws, then proceed to rotation operation set and gather claw to lock workpiece.It is Chong Die with housing parts since fixing sleeve is sheathed on shell, to reduce the volume of the power tool equipped with the drill chuck.
Description
Technical field
The present invention relates to hand-held power tool field, in particular to a kind of power tool.
Background technique
The hand-held power tools such as electric drill have been widely used for the production of people, in life, and by replacement tool heads,
Different work pieces can be processed, there is extensive suitable application area, bring great convenience for the production and living of people.
However, current electric drill generallys use double set collets to lock the workpieces such as workpiece, and double set collets by
There is longer length in self structure defect, thus occupied space is larger, to keep the volume of electric drill excessive and cause to operate
Person is inconvenient for use.
Summary of the invention
Based on this, it is necessary to for the problem that the drill chuck length of electric drill is too long, provide a kind of whole length shorter dynamic
Power tool.
A kind of power tool, comprising:
Shell；
Motor is set in the shell；
Main shaft drives output rotary force by the motor；
Drill chuck, including connect with the main shaft core, be actively set to multiple claws, the Yi Jicao of the core
Cover, it is mobile relative to the core that operation set is operably driven the claw, for lock or discharge be supported in it is described
The workpiece of core；The drill chuck further includes fixing sleeve, and connection of the fixing sleeve relative to the core without rotation is used for
Operationally the relatively described shell of the core is fixed, the fixing sleeve be set to the shell and with the shell in
Projection on main-shaft axis is least partially overlapped.
Above-mentioned power tool, operation set can drive claw to gather or open, and fixing sleeve and core are connected without relative rotation, because
Under external force when the relatively fixed set of operation set is in rotary state, claw can move with respect to core and gather or open for this
With clamp or release workpiece.After claw opens, workpiece can be inserted into multiple claws, then proceed to rotation operation
It covers and gathers claw to lock workpiece.After workpiece is installed, core can be rotated under the drive of main shaft and into
Row processing operation.It is Chong Die with housing parts since fixing sleeve is sheathed on shell, to reduce the power equipped with the drill chuck
The volume of tool brings convenience for the use and storage of the power tool.
The drill chuck further includes being sheathed on the core and being threadedly coupled with the claw in one of the embodiments,
Nut, the nut be equipped with internal screw thread, the claw be equipped with and the matched external screw thread of the internal screw thread.
The power tool further includes nut set in one of the embodiments, and the nut set covers without relative rotation
Set on the nut, the operation set is sheathed on the nut set without relative rotation.
The nut set includes nut set main body and covers the outside of main body set on the nut in one of the embodiments,
The clamping key of wall, the operation set inner sidewall are offered and can be fastened in the matched securing groove of clamping key, the clamping key
In the securing groove.
The clamping key is multiple in one of the embodiments, and multiple clamping keys are along nut set main body week
To interval be arranged, the securing groove be it is multiple, multiple securing grooves along the operation set circumferentially open up and with the clamping key
It corresponds.
The power tool further includes fixing piece in one of the embodiments, and the fixing piece covers without relative rotation
Set on the core, the fixing sleeve is sheathed on the fixing piece without relative rotation.
The fixing piece includes mount body and the limit set on the fixing piece edge in one of the embodiments,
Structure, the fixing sleeve inner sidewall, which is offered, can be limited in institute with the matched limiting slot of the position limiting structure, the position limiting structure
It states in limiting slot.
The position limiting structure is multiple in one of the embodiments, and multiple position limiting structures are circumferentially set along the fixing piece
It sets.
The position limiting structure includes protruding portion and the bending part for being connected to the protruding portion in one of the embodiments,
The protruding portion self-retaining part main body extends radially outwards, and the bending part is from the both ends of the protruding portion along the axis of the drill body
The bending of line direction extends.
The fixing sleeve includes big end and the small end that is set to the big end side in one of the embodiments, described big
The internal diameter at end is greater than the small end, and the big end is rotationally sheathed on the shell, and the limiting slot is opened in described small
End.
Detailed description of the invention
Fig. 1 is the schematic diagram of the power tool of an embodiment；
Fig. 2 is the cross-sectional view of power tool shown in FIG. 1；
Fig. 3 is the schematic diagram of the drill chuck of power tool shown in FIG. 1；
Fig. 4 is the exploded view of drill chuck shown in Fig. 3；
Fig. 5 is the cross-sectional view under the claw releasing orientation of drill chuck shown in Fig. 3；
Fig. 6 is that the claw of drill chuck shown in Fig. 3 gathers the cross-sectional view under state.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing
Give preferred embodiment of the invention.But the invention can be realized in many different forms, however it is not limited to herein
Described embodiment.On the contrary, purpose of providing these embodiments is keeps the understanding to the disclosure more saturating
It is thorough comprehensive.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement are for illustrative purposes only.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more phases
Any and all combinations of the listed item of pass.
As shown in Figures 1 and 2, a kind of power tool 100 of this better embodiment, including shell 22, motor 242, master
Axis 244 and drill chuck 40, drill chuck 40 are used to clamp the workpieces such as workpiece, and in the driving of motor 242 and main shaft 244
Under various processing operations are carried out to work piece.
Motor 242 is set in shell 22, and main shaft 244 drives output rotary force by motor 242.Specifically, main shaft 244 is logical
It crosses the drive mechanisms such as gear set and is indirectly coupled to motor 242, motor is by drive mechanism output torque to main shaft 244, and then band
Dynamic drill chuck 40 works.
Fig. 3 and Fig. 4 is please referred to, drill chuck 40 includes that drill body 41, operation set 42 and fixing sleeve 43, drill body 41 can pass through screw thread
It is fixedly connected on main shaft 244 with back-pressure screw, realizes the connection (as shown in Figure 2) of drill chuck 40 and tool body 20.
Specifically, drill body 41 includes core 412 and claw 413, and core 412 is connected to main shaft 244, and multiple claws 413 are living
It is dynamic to be set in core 412.The movement of 413 cabinet core 412 of claw is operably driven in operation set 42, for locking or discharging branch
It supports in the workpiece of core 412.
Wherein, drill chuck 40 further includes with core 412 without the fixing sleeve 43 for relatively rotating connection, and fixing sleeve 43 is for that can grasp
Make ground and core 412 is fixed with respect to shell 22, fixing sleeve 43 is sheathed on shell 22 and with shell 22 on 244 axis of main shaft
Projection it is least partially overlapped.
Above-mentioned power tool 100, operation set 42 can drive claw 413 to gather or open, and fixing sleeve 43 is with core 412 without phase
To rotation connection, therefore under external force when the relatively fixed set 43 of operation set 42 is in rotary state, claw 413 can be opposite
Core 412 moves and gathers or open with clamp or release workpiece.After claw 413 opens, workpiece can be inserted into
In multiple claws 413, then proceedes to rotation operation set 42 and gather claw 413 to lock workpiece.Workpiece installation
After the completion, core 412 can rotate under the drive of main shaft 244 and carry out processing operation.Since fixing sleeve 43 is sheathed on shell 22
And partly overlap with shell 22, so that the volume of the power tool 100 equipped with the drill chuck 40 is reduced, for the power tool
100 use and storage brings convenience.
As shown in Figures 4 and 5, further, drill body 41 further includes nut 414, and nut 414 is sheathed on 412 outside of core
And be threadedly coupled with claw 413, nut 414 is equipped with internal screw thread, and claw 413 is equipped with and the matched external screw thread of internal screw thread.Specifically,
Claw 413 is tilted along the cylindrical hole of the tilted extension of core 412 to be extended, and 413 one end of claw is equipped with the spiral shell cooperated with nut 414
Line, thus rotate operation set 42 when, the nut 414 of rotation can drive cylindrical hole of the claw 413 in core 412 it is oblique move from
And gathers or open.
Power tool 100 further includes nut set 44 in one of the embodiments, and nut set 44 is arranged without relative rotation
In nut 414, operation set 42 is sheathed on nut set 44 without relative rotation, to be rotated by 44 driving nut 414 of nut set.
Specifically, nut set 44 includes the card of cricoid nut set main body 442 and the lateral wall set on nut set main body 442
Hold key 444.Nut set main body 442 is sheathed on nut 414 and is interference fitted with nut 414, so as to drive nut set 44 around brill
The axis of body 41 rotates.Operation set 42 inner sidewalls offer with the matched securing groove 422 of clamping key 444, clamping key 444 can clamping
In in securing groove 422, thus make between nut set main body 442 and operation set 42 there is no the rotation of the axis around drill body 41, because
This rotation operation set 42 can drive 44 rotation of nut set, and then drive the rotation of nut 414 to control the state of claw 413.It can
To understand, nut set 44 and the connection type of operation set 42 are without being limited thereto, can be set as needed.
In the present embodiment, clamping key 444 is multiple, and main body 442 is circumferentially-spaced sets along nut set for multiple clamping keys 444
It sets, also to be multiple, multiple securing grooves 422 are opened up and corresponded with clamping key 444 along operation set 42 is circumferential securing groove 422.More
Specifically, clamping key 444 and securing groove 422 are three, and the cross section of clamping key 444 and securing groove 422 is rectangle.It can be with
Understand, clamping key 444 and the quantity and shape of securing groove 422 are without being limited thereto, can be set as needed.
Power tool 100 further includes fixing piece 45 in one of the embodiments, and fixing piece 45 is arranged without relative rotation
In core 412, fixing sleeve 43 is sheathed on fixing piece 45 without relative rotation.In this way, core 412 and fixing sleeve 43 turn without opposite
It moves, and since operation set 32 and nut cover 44 without relative rotation, when rotation process covers 42, nut 414 is in nut set 44
Effect is lower to produce relative rotation between core 412, and then claw 413 is made to gather or separate along 412 axis of core.
Specifically, fixing piece 45 includes mount body 452 and the position limiting structure 454 set on 45 edge of fixing piece, is fixed
Covering 43 inner sidewalls and offering can be limited in limiting slot 432 with the matched limiting slot 432 of position limiting structure 454, position limiting structure 454.
In this way, mount body 452 avoids fixing set 43 relatively around the center axis thereof of drill body 41 by position limiting structure 454.
In the present embodiment, position limiting structure 454 is multiple, and multiple position limiting structures 454 are along the circumferential setting of fixing piece 45.Tool
Body, position limiting structure 454 includes protruding portion 4542 and the bending part 4544 for being connected to protruding portion 4542,4542 self-retaining of protruding portion
Part main body 452 extends radially outwards, and bending part 4544, which is bent from the both ends of protruding portion 4542 along the axis direction of drill body 41, to be extended.
In this way, bending part 4544 can be held in the side wall of limiting slot 432, to make fixing piece 45 and fixing sleeve 43 without relative rotation.Gu
Surely set 43 includes the biggish big end of internal diameter and the lesser small end of internal diameter, and wherein big end is rotationally sheathed on shell 22, limit
Slot 432 is opened in small end to be sheathed on fixing piece 45.
The process of the installation and removal workpiece of above-mentioned power tool 100 is as follows:
Firstly, as shown in figures 2 and 5, holding fixing sleeve 43 and rotation process set 42.Due to fixing piece 45 and fixing sleeve 43
Without relative rotation, core 412 and fixing piece 45 are without relative rotation, therefore core 412 follows fixing sleeve 43 to move synchronously always, again
Since fixing sleeve 43 is held, opposite shell 22 is fixed namely core 412 is fixed with respect to shell 22, and operates set
42 cover 44 without relative rotation with nut, and for nut set 44 with nut 414 without relative rotation, nut 414 can drive claw 412 to gather,
Therefore claw 412 can gradually be gathered while with the rotation of operation set 42, finally clamp workpiece (as shown in Figure 6).And
It is similar to above-mentioned steps when needing dismantlement work component, it is only necessary to change the direction of relative movement of operation set 42 with fixing sleeve 43
?.
Above-mentioned power tool 100, when installing or removing workpiece, it is only necessary to make operation set 42 is opposite with fixing sleeve 43 to turn
It is dynamic, 413 clamp or release workpiece of claw can be made, to be easily accomplished the installation and removal of workpiece.Due to fixation
It covers 43 one end to be sheathed on shell 22, therefore shortens the length of the power tool 100, facilitate making for the power tool 100
With with storage.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of power tool, comprising:
Shell；
Motor is set in the shell；
Main shaft drives output rotary force by the motor；
Drill chuck, including connect with the main shaft core, actively be set to the core multiple claws and operation
Set, the operation set are operably driven the claw relative to core movement, are supported in the core for locking or discharging
The workpiece of body；It is characterized in that, the drill chuck further includes fixing sleeve, the fixing sleeve is relative to the core without rotation
Connection, for operationally the relatively described shell of the core to be fixed, the fixing sleeve be set to the shell and with
The shell is least partially overlapped in the projection on main-shaft axis.
2. power tool according to claim 1, which is characterized in that the drill chuck further includes being sheathed on the core simultaneously
The nut being threadedly coupled with the claw, the nut are equipped with internal screw thread, and the claw is equipped with matched outer with the internal screw thread
Screw thread.
3. power tool according to claim 2, which is characterized in that the power tool further includes nut set, the spiral shell
Mother set is sheathed on the nut without relative rotation, and the operation set is sheathed on the nut set without relative rotation.
4. power tool according to claim 3, which is characterized in that the nut set includes that nut covers main body and is set to institute
State the clamping key of the lateral wall of nut set main body, the operation cover inner sidewall offer with the matched securing groove of clamping key,
The clamping key can be fastened in the securing groove.
5. power tool according to claim 4, which is characterized in that the clamping key is multiple, multiple clamping keys
Along the nut set main body be provided at circumferentially spaced, the securing groove be it is multiple, multiple securing grooves along the operation set circumferential direction
It opens up and is corresponded with the clamping key.
6. power tool according to claim 1, which is characterized in that the power tool further includes fixing piece, described solid
Determine part and be sheathed on the core without relative rotation, the fixing sleeve is sheathed on the fixing piece without relative rotation.
7. power tool according to claim 6, which is characterized in that the fixing piece include mount body and be set to institute
State the position limiting structure at fixing piece edge, the fixing sleeve inner sidewall offer with the matched limiting slot of the position limiting structure, it is described
Position limiting structure can be limited in the limiting slot.
8. power tool according to claim 7, which is characterized in that the position limiting structure is multiple, multiple position limiting structures
Circumferentially it is arranged along the fixing piece.
9. power tool according to claim 7, which is characterized in that the position limiting structure includes protruding portion and is connected to institute
The bending part of protruding portion is stated, the protruding portion self-retaining part main body extends radially outwards, and the bending part is from the protruding portion
Both ends are bent along the axis direction of the drill body to be extended.
10. power tool according to claim 7, which is characterized in that the fixing sleeve includes big end and is set to described big
The small end of side is held, the internal diameter of the big end is greater than the small end, and the big end is rotationally sheathed on the shell, described
Limiting slot is opened in the small end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711068966.9A CN109746484A (en) | 2017-11-03 | 2017-11-03 | Power tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711068966.9A CN109746484A (en) | 2017-11-03 | 2017-11-03 | Power tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109746484A true CN109746484A (en) | 2019-05-14 |
Family
ID=66398015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711068966.9A Pending CN109746484A (en) | 2017-11-03 | 2017-11-03 | Power tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109746484A (en) |
Citations (22)
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|---|---|---|---|---|
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