CN107414745B - Chuck device and electric tool provided with same - Google Patents
Chuck device and electric tool provided with same Download PDFInfo
- Publication number
- CN107414745B CN107414745B CN201610347179.7A CN201610347179A CN107414745B CN 107414745 B CN107414745 B CN 107414745B CN 201610347179 A CN201610347179 A CN 201610347179A CN 107414745 B CN107414745 B CN 107414745B
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- chuck device
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- 238000013459 approach Methods 0.000 claims abstract description 3
- 230000007423 decrease Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000003754 machining Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000007847 structural defect Effects 0.000 description 1
Classifications
-
- 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
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- 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
- B25F5/001—Gearings, speed selectors, clutches or the like specially adapted for rotary tools
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping On Spindles (AREA)
- Drilling And Boring (AREA)
Abstract
The invention relates to a chuck device and an electric tool provided with the chuck device, wherein the chuck device comprises: a housing; the clamping jaw mechanism is used for clamping the working head and comprises clamping jaws and a chuck body, the chuck body is provided with a guide groove which extends along the rotating shaft and gradually approaches the rotating shaft, and the clamping jaws can move along the guide groove to change the inner diameter; the rotating main shaft is rotatably arranged on the shell; the clamping mechanism is respectively matched with the rotating main shaft and the clamping jaw, and the rotating main shaft can drive the clamping jaw to move along the guide groove through the clamping mechanism; the rotating mechanism is connected with the chuck body and can be selectively fixedly connected with or separated from the rotating main shaft, and when the rotating mechanism is fixedly connected with the rotating main shaft, the rotating main shaft can drive the chuck body to rotate through the rotating mechanism. The chuck device can be rapidly switched between a clamping state and a working state, and the working head can be rapidly and conveniently installed through the rotation of the rotary main shaft, so that various inconveniences caused by manual clamping of the working head are avoided, and an additional fastening device is not required.
Description
Technical Field
The invention relates to the field of machining tools, in particular to a chuck device and an electric tool provided with the chuck device.
Background
With the development of society and the progress of manufacturing industry, more and more hand-held electric tools are used in manufacturing and life of people. Rotary tools such as impact drills, electric hammers and the like usually utilize drill chucks to clamp drill bits, screwdriver heads and the like to drill holes, fasten screws and the like, and bring great convenience to the production and life of people.
The existing rotary electric tool drill chucks such as impact drills, electric hammers and the like have the defects of weak clamping force, inconvenient clamping operation and the like due to structural defects. The hand-tightening drill chuck is small in clamping, and when the drill bit is subjected to large torsion or vibration, the drill bit is easy to loose or fall off, so that potential safety hazards are brought while the machining efficiency and quality are influenced. The clamping force of the spanner type drill chuck is large, but the spanner type drill chuck needs to be screwed by fastening tools such as a spanner when the drill bit is dismounted, so that inconvenience is brought to a user.
Disclosure of Invention
Accordingly, it is desirable to provide a chuck device capable of providing a sufficient holding force and rapidly mounting a drill bit, and an electric tool provided with the chuck device, in order to solve the problem that the drill bit cannot be rapidly mounted while providing a sufficient holding force.
A chuck device for holding a working head, comprising:
a housing;
the clamping jaw mechanism is used for clamping the working head, the working head can rotate relative to the shell around the rotating shaft, the clamping jaw mechanism comprises clamping jaws and a clamping head body sleeved on the clamping jaws, the clamping head body is provided with a guide groove which extends along the rotating shaft and gradually approaches the rotating shaft, and the clamping jaws can move along the guide groove to change the inner diameter;
the rotating main shaft is rotatably arranged on the shell;
the clamping mechanism is respectively matched with the rotary main shaft and the clamping jaw, and the rotary main shaft can drive the clamping jaw to move along the guide groove through the clamping mechanism;
and the rotating mechanism is connected with the chuck body, and is selectively fixedly connected with or separated from the rotating main shaft, and when the rotating mechanism is fixedly connected with the rotating main shaft, the rotating main shaft can drive the chuck body to rotate through the rotating mechanism.
According to the chuck device, the clamping jaw is driven to move along the guide groove by the rotating main shaft to clamp or unclamp the working head, or the clamping jaw mechanism is driven to rotate to enable the chuck device to be in a working state to drill a workpiece and other processing procedures. Therefore, the chuck device can be rapidly switched between a clamping state and a working state, and the working head can be rapidly and conveniently installed through the rotation of the rotary main shaft, so that various inconveniences caused by manual clamping of the working head are avoided, an additional fastening device is not needed, great convenience is provided for a user, and the potential safety hazard of loosening of the working head is avoided.
In one embodiment, the chuck device further comprises a switching mechanism, wherein the switching mechanism comprises a switching piece arranged on the rotary main shaft, and the switching piece can be selectively connected with or disconnected from the rotating mechanism so as to enable the rotary main shaft to be fixedly connected with or disconnected from the rotating mechanism.
In one embodiment, the rotating main shaft and the rotating mechanism form a containing space together, and the switching piece can move in the containing space so as to make the rotating main shaft fixedly connected with or separated from the rotating mechanism.
In one embodiment, the chuck device further comprises a locking mechanism comprising a locking member movably disposed on the housing to selectively secure or disengage the chuck body relative to the housing.
In one embodiment, the locking member is an adjusting gear, the adjusting gear is sleeved on the rotating main shaft, and the outer edge of the adjusting gear is connected with the shell.
In one embodiment, the chuck device further includes a fixing cover, the fixing cover is disposed at one side of the housing at intervals, one end of the fixing cover is fixedly connected with the chuck body, one end of the locking member is connected to the housing, the other end of the locking member can be fixedly connected with or separated from one end of the fixing cover, which is not fixedly connected with the chuck body, the locking member is connected to one end of the housing, an abutting portion is provided with the switching member, and the abutting portion cooperates with the switching member to drive the switching member to be selectively connected with or separated from the rotating mechanism.
In one embodiment, the distance between the abutting portion and the rotating main shaft gradually decreases from the side close to the housing toward the fixed cover along the rotating shaft direction so as to abut against the switching member.
In one embodiment, the rotating mechanism comprises a connecting rod inserted into the rotating main shaft and capable of rotating relative to the rotating main shaft, an inward concave accommodating groove is formed in the side wall of the connecting rod, a through hole corresponding to the accommodating groove is formed in the side wall of the rotating main shaft, and the accommodating groove and the through hole jointly form the accommodating space.
In one embodiment, the clamping mechanism comprises a clamping nut fixed in the extending direction of the rotating shaft, the clamping nut is sleeved on the clamping jaw and is rotatably connected with the clamping jaw, and the rotating main shaft can drive the clamping nut to rotate.
In one embodiment, the clamping mechanism further comprises a planetary gear assembly, the planetary gear assembly is connected with the rotating main shaft and the clamping nut, and the rotating main shaft drives the clamping nut to rotate through the planetary gear assembly.
In one embodiment, the planetary gear assembly comprises a planetary gear carrier and planetary gears arranged on the planetary gear carrier, the planetary gears are meshed with the rotating main shaft, and the rotating main shaft drives the planetary gear carrier to rotate around the rotating shaft through the planetary gears.
In one embodiment, the planet carrier comprises a first end and a second end with an outer diameter larger than that of the first end, the planet wheel is sleeved on the first end of the planet carrier, and the second end of the planet carrier is sleeved on the clamping nut.
An electric tool comprises the chuck device.
Drawings
FIG. 1 is a schematic view of a chuck device according to an embodiment in a clamped state;
FIG. 2 is a schematic view of the chuck device shown in FIG. 1 in an operative state;
FIG. 3 is a schematic view of a chuck device according to another embodiment;
fig. 4 is a schematic structural view of a chuck device according to still another embodiment.
Detailed Description
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1 and 2, a chuck device 100 according to the present preferred embodiment is configured to be mounted on a power tool to clamp a working head 200. The chuck device 100 includes a housing 10, a jaw mechanism 20, a rotating spindle 30, a clamping mechanism 40, a rotating mechanism (not shown) and an adjustment and fixation mechanism.
The clamping jaw mechanism 20 is used for clamping a working head 200, the working head 200 can rotate relative to the housing 10 around a rotation shaft, and the clamping jaw mechanism 20 comprises clamping jaws 22 and a chuck body 24 sleeved on the clamping jaws 22. The chuck body 24 is provided with a guide groove (not shown) extending along and gradually approaching the rotation shaft, along which the jaws 22 can be moved to change the inner diameter size, thereby clamping or unclamping the working head 200.
The rotary spindle 30 is driven by a motor and is rotatably provided to the housing 10. The clamping mechanism 40 is respectively matched with the rotating main shaft 30 and the clamping jaw 22, and the rotating main shaft 30 can drive the clamping jaw 22 to move along the guide groove through the clamping mechanism 40. One end of the rotating mechanism is connected with the chuck body 24 and is selectively fixedly connected with or separated from the rotating main shaft 30, and when the rotating mechanism is fixedly connected with the rotating main shaft 30, the rotating main shaft 30 can drive the chuck body 24 to rotate through the rotating mechanism.
In the chuck device 100, the spindle 30 is rotated to drive the clamping jaw 22 to move along the guide groove to clamp or unclamp the working head 200, or to drive the clamping jaw mechanism 20 to rotate to make the chuck device 100 in a working state to drill a workpiece. Thus, the chuck device 100 can be rapidly switched between a clamping state and a working state, and the working head 200 can be rapidly and conveniently installed by rotating the rotary spindle 30, so that various inconveniences caused by manual clamping of the working head 200 are avoided, no additional fastening device is needed, great convenience is provided for a user, and potential safety hazards of loosening of the working head 200 are avoided.
The cartridge device 100 also includes a switching mechanism (not shown). The switching mechanism comprises a switching member 62 arranged on the rotary main shaft 30, and the switching member 62 can be selectively connected with or disconnected from the rotary mechanism so as to fixedly connect or disconnect the rotary main shaft 30 with or from the rotary mechanism.
In this embodiment, the rotating spindle 30 and the rotating mechanism together form a receiving space, and the switching member 62 is movable in the receiving space to fix or separate the rotating spindle 30 and the rotating mechanism. When the switching member 62 is completely accommodated in the rotary main shaft 30, the rotary main shaft 30 is separated from the rotating mechanism. When the switching member 62 is partially disposed on the rotating main shaft 30 and partially disposed in the rotating mechanism, the rotating main shaft 30 is fixedly connected to the rotating mechanism, so as to drive the rotating mechanism to rotate.
In this way, when the rotary spindle 30 is fixedly connected with the rotating mechanism through the switching mechanism, the rotating mechanism can be driven to rotate, so that the chuck device 100 is in a working state that the working head 200 rotates. When the rotary spindle 30 is separated from the rotating mechanism, the rotating mechanism cannot be driven to rotate, and thus the working head 200 cannot be driven to rotate.
The cartridge device 100 also includes a locking mechanism (not shown). The locking mechanism includes a locking member 64, the locking member 64 being movably disposed on the housing 10 to selectively secure or disengage the chuck body 24 relative to the housing 10. When the locking member 64 is fixed relative to the chuck body 24, the chuck body 24 is fixed relative to the housing 10 by the locking member 64 so as to prevent rotation with the chuck 40. When the locking member 64 is disengaged from the chuck body 24, the chuck body 24 can rotate relative to the housing 10, so that the chuck body can rotate under the driving of the rotating mechanism, and the working head 200 can be driven to rotate.
In this embodiment, the locking member 64 is an adjusting gear. The adjusting gear is sleeved on the rotating main shaft 30, and the outer edge of the adjusting gear is connected with the shell.
The chuck device 100 further includes a fixing cover 70, where the fixing cover 70 is disposed at a side of the housing 10 at intervals, and one end of the fixing cover 70 is fixedly connected with the chuck body 24. One end of the locking member 64 is connected to the housing 10, and the other end of the locking member is fixedly connected to or separated from the end of the fixing cover 70, which is not fixedly connected to the chuck body 24. The locking member 64 is connected to one end of the housing 10 and has an abutment portion 642, and the abutment portion 642 cooperates with the switching member 62 to drive the switching member 62 to selectively connect to or disconnect from the rotating mechanism.
Specifically, the housing 10 and the fixing cover 70 are respectively provided with fixing grooves (not shown), and the locking member 64 is provided with keys corresponding to the fixing grooves to be engaged with the housing 10 and the fixing cover 70. The key at one end of the locking member 64 is slidably retained in the fixing groove on the housing 10, and the locking member 64 can slide toward one end of the fixing cover 70 and is retained in the fixing groove formed on the fixing cover 70, so that the fixing cover 70 is fixedly connected to the locking member 64 in the circumferential direction, and is further fixed relative to the housing 10, so that the chuck device 100 is in a clamping state. When the locking member 64 slides in the direction of the housing 10 to disengage the retaining cap 70, the retaining cap 70 disengages the housing 10 and can rotate with the chuck body 24.
The abutment portion 642 of the lock 64 is gradually reduced in distance from the rotation main shaft 30 side toward the housing 10 side along the rotation axial fixing cover 70 side to be engaged with the switching piece 62.
Specifically, the abutment portion 642 is provided with a horizontal abutment surface (not shown) and an arc-shaped abutment surface (not shown) connected to a side of the horizontal abutment surface near the jaw mechanism 20. The horizontal abutment surface is parallel to the direction of extension of the rotation axis of the working head 200, and the distance between the arc-shaped abutment surface and the rotation spindle 30 gradually decreases from one end connected with the horizontal abutment surface along the direction of extension of the rotation axis until the arc-shaped abutment surface is tangent to the side wall of the rotation spindle 30.
In this way, when the horizontal contact surface is positioned at the position corresponding to the regulator 62, the centrifugal force generated by the rotation of the rotary spindle 30 moves the regulator 62 away from the rotation axis and contacts the horizontal contact surface, and the rotary spindle 30 is disconnected from the rotation mechanism. When the arc-shaped abutting surface is positioned at the corresponding position with the adjusting piece 62, the arc-shaped abutting surface abuts the adjusting piece 62 in the rotating mechanism, so that the rotating main shaft 30 and the rotating mechanism are fixedly connected, and the rotating mechanism can rotate under the drive of the rotating main shaft 30. In this embodiment, the adjustment member 62 is an adjustment steel ball.
The rotating mechanism comprises a connecting rod 52 which is inserted into the rotating main shaft 30 and can rotate relative to the rotating main shaft 30, one end of the connecting rod 52 is fixedly connected with the rotating main shaft 30 through a switching mechanism, and the other end of the connecting rod 52 is fixedly connected with the chuck body 24 so as to drive the chuck body 24 to rotate. When the rotary spindle 30 is fixedly connected with the connecting rod 52 through the switching mechanism, the connecting rod 52 can be driven to rotate through the rotation of the rotary spindle, so that the chuck body 24 is driven to rotate, and finally the working head 200 is driven to rotate for processing. In this way, the rotating mechanism drives the chuck body 24 and the clamping mechanism 40 to rotate synchronously through the rotating main shaft 30, so as to drive the drill bit to rotate and prevent the clamping jaw 22 from moving relative to the guide groove of the chuck body 24.
The connecting rod 52 side wall of the rotating mechanism is provided with an inwards concave accommodating groove 522, the rotating main shaft 30 is provided with a through hole corresponding to the accommodating groove 522, and the accommodating groove 522 and the through hole jointly form an accommodating space. When the arc-shaped abutting surface of the abutting portion 642 of the locking member 64 abuts against the switching member 62, so that a part of the switching member 62 is positioned in the accommodating groove 522 and the other part is positioned in the through hole, the connecting rod 52 rotates synchronously with the rotating main shaft 30. When the switching member 62 is disengaged from the accommodating groove 522 and abuts against the horizontal abutment surface of the abutment portion 642, the connection between the connecting rod 52 and the rotating spindle 30 is disconnected, and the rotation of the rotating spindle 30 cannot drive the connecting rod 52 to rotate synchronously.
The chuck 40 includes a chuck nut 42 fixed in the extension direction of the rotation shaft of the working head 200. The clamping nut 42 is sleeved on the clamping jaw 22 and is rotatably connected with the clamping jaw 22, and the rotating main shaft 30 can drive the clamping nut 42 to rotate so that the clamping jaw 22 moves relative to the clamping head body 24 when the clamping head body 24 is fixed relative to the shell 10.
Specifically, the clamping jaw 22 includes a clamping portion 222 at an end remote from the housing 10 and a mating portion 224 connected to the clamping portion 222. The side wall of the clamping portion 222 is attached to the guide groove of the chuck body 24, and the engaging portion 224 is gradually away from the rotation axis of the working head 200 from one end to the other end of the connecting clamping portion 222. In this embodiment, the clamping nut 42 is in threaded connection with the mating portion 224, since the clamping nut 42 is fixed in the extending direction of the rotation shaft, the clamping jaw 22 can only move along the extending direction of the rotation shaft relative to the chuck body 24 under the limit of the guide groove, and the chuck body 24 is fixed relative to the housing 10 under the effect of the adjusting and fixing mechanism, the rotation of the clamping nut 42 can drive the clamping jaw 22 to move along the guide groove instead of rotating around the rotation shaft as the rotation center. The clamping jaw 22 comprises a plurality of clamping pieces arranged along the circumferential direction, when the clamping jaw 22 moves along the direction of the guide groove towards the shell 10, the clamping pieces are gradually far away from each other due to the inclined surface matching of the clamping jaw 22 and enable the inner diameter of the clamping jaw 22 to be gradually enlarged and larger than the outer diameter of the working head 200, so that the working head 200 can be disassembled and assembled.
The chuck 40 also includes a planetary gear assembly 44. The planetary gear assembly 44 connects the rotating spindle 30 with the clamping nut 42, and the rotating spindle 30 drives the clamping nut 42 to rotate through the planetary gear assembly 44.
Specifically, the planetary gear assembly 44 includes a planetary gear frame 444 and planetary gears 442 disposed on the planetary gear frame 444, the planetary gears 442 mesh with the rotating spindle 30, and the rotating spindle 30 drives the planetary gear frame 444 to rotate around the rotation axis of the working head 200 through the planetary gears 442. In this embodiment, the planetary gear assembly 44 includes at least two planetary gears 442, so that the rotation of the rotating spindle 30 drives the planetary gears 442 to rotate, and further drives the planetary carrier 444 to rotate, and the planetary carrier 444 drives the clamping nut 42 fixedly connected to the planetary carrier 444 to rotate, so as to drive the clamping jaw 22 to move along the chuck body 24.
More specifically, the planet carrier 444 includes a first end and a second end having an outer diameter greater than the first end, the planet wheel 442 is sleeved on the first end, and the second end of the planet carrier 444 is sleeved on the clamping nut 42. In this way, the tightening force output by the rotating spindle 30 can be amplified by the planetary gear assembly 44, preventing the working head 200 from loosening or even falling off.
One end of the locking member 64 is connected to the housing 10 and is movable relative to the housing 10 in the direction in which the rotational shaft of the working head 200 extends, and the locking member 64 is provided with internal threads to engage with the planetary gears 442, and the planetary gears 442 are rotatable along the locking member 64 by the drive of the rotating spindle 30.
In another embodiment, the planetary gear assembly 44 further includes a manual operator (not shown) that the operator can operate to rotate the planetary gears 442, which in turn rotates the planet carrier 444 and the clamping nut 42 to clamp the working head 200.
In another embodiment, as shown in fig. 3, the collet device 100 is not provided with a retaining cap 70 but rather includes a retaining bar 80. The securing lever 80 is removably mounted to the retaining member 64 and the chuck body 24 at both ends. When the two ends of the fixing rod 80 are respectively mounted on the locking member 64 and the chuck body 24, the chuck body 24 can be fixed relative to the locking member 64. When the fixing rod 80 is removed, the chuck body 24 can rotate relative to the housing 10.
In another embodiment, as shown in fig. 4, two ends of the fixing rod 80 are detachably mounted to the housing 10 and the chuck body 24. When both ends of the fixing rod 80 are respectively mounted to the housing 10 and the chuck body 24, the chuck body 24 can be fixed with respect to the housing 10. When the fixing rod 80 is removed, the chuck body 24 can rotate relative to the housing 10.
In the chuck device 100, when the chuck 200 is required to be clamped, the operator moves the locking member 64 toward the fixed cover 70 to fix the fixed cover 70 to the housing 10. The abutting portion 642 of the lock 64 moves in the direction in which the rotation shaft of the work head 200 extends, and the horizontal abutting surface corresponds to the accommodation groove 522. The rotating spindle 30 rotates, the generated centrifugal force makes the adjusting piece 62 separate from the accommodating groove 522 and prop against the horizontal abutting surface, so that the rotating shaft and the connecting rod 52 are in a disconnected state, the rotating spindle 30 rotates to sequentially drive the planet wheel 442, the planet carrier 444 and the clamping nut 42 to rotate, and the clamping nut 42 drives the clamping jaw 22 to move along the sliding groove of the chuck body 24, so that the inner diameter of the clamping jaw 22 is changed, and the working head 200 is dismounted.
When the chuck device 100 is in the operating state, the operator can move the locking member 64 in the direction of the housing 10, thereby disengaging the locking member 64 from the fixed cover 70 and rotating it relative to the housing 10. The abutting portion 642 of the locking member 64 moves along the extending direction of the rotation shaft of the working head 200, and the arc-shaped abutting surface corresponds to the accommodating groove 522 to fixedly connect the connecting rod 52 and the rotation spindle 30. The rotary spindle 30 rotates to drive the connecting rod 52 to rotate, and then drives the chuck body 24 fixedly connected with the connecting rod 52 to rotate, so as to drive the working head 200 to rotate.
In the chuck device 100, an operator only needs to move the locking member 64 or the fixing rod to change the state of the chuck body 24 relative to the housing 10, so as to provide a clamping force by rotating the rotary spindle 30, thereby avoiding the easy falling of the working head 200 caused by manually installing the working head 200, and the operation is fast and convenient without using other fastening tools.
As shown in fig. 1 and 2, a power tool (not shown) of the preferred embodiment is provided with the chuck device 100.
The electric tool includes, but is not limited to, rotary electric tools such as impact drills, electric hammers, and pneumatic tools. The working head 200 may be a drill bit or a screw driver.
The electric tool can provide enough clamping force to avoid loosening or falling of the working head 200 by quickly assembling and disassembling the working head 200 through the chuck device 100, and does not need to use an additional fastening tool, thereby being convenient for operators to use.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (10)
1. A chuck device for holding a working head, comprising:
a housing;
the clamping jaw mechanism is used for clamping the working head, the working head can rotate relative to the shell around the rotating shaft, the clamping jaw mechanism comprises clamping jaws and a clamping head body sleeved on the clamping jaws, the clamping head body is provided with a guide groove which extends along the rotating shaft and gradually approaches the rotating shaft, and the clamping jaws can move along the guide groove to change the inner diameter;
the rotating main shaft is rotatably arranged on the shell;
the clamping mechanism is respectively matched with the rotary main shaft and the clamping jaw, and the rotary main shaft can drive the clamping jaw to move along the guide groove through the clamping mechanism;
the rotating mechanism is connected with the chuck body, and is selectively fixedly connected with or separated from the rotating main shaft, when the rotating mechanism is fixedly connected with the rotating main shaft, the rotating main shaft can drive the chuck body to rotate through the rotating mechanism, and the rotating main shaft and the rotating mechanism form an accommodating space together;
the switching mechanism comprises a switching piece arranged on the rotary main shaft, the switching piece can move in the accommodating space, and the switching piece can be selectively connected with or separated from the rotating mechanism so as to ensure that the rotary main shaft is fixedly connected with or separated from the rotating mechanism;
the locking mechanism comprises a locking piece, wherein the locking piece is movably arranged on the shell and is selectively fixed or separated relative to the chuck body so as to fix or separate the chuck body relative to the shell;
the locking piece is connected to the shell at one end, an abutting part is arranged at one end of the locking piece, and the abutting part is matched with the switching piece to drive the switching piece to be selectively connected with or separated from the rotating mechanism.
2. The chuck device as in claim 1, wherein said locking member is an adjusting gear, said adjusting gear is sleeved on said rotating spindle, and an outer edge of said adjusting gear is connected with said housing.
3. The chuck device as in claim 1, further comprising a retaining cap, wherein said retaining cap is disposed at a distance from one side of said housing, one end of said retaining cap is fixedly connected to said chuck body, one end of said retaining member is connected to said housing, and the other end of said retaining member is fixedly connected to or separated from an end of said retaining cap not fixedly connected to said chuck body.
4. A chuck device as in claim 3, wherein the abutment is spaced from the rotary spindle by a distance which gradually decreases from a side closer to the housing toward the fixed cover along the rotational axis to abut the switching member.
5. The chuck device as in claim 4, wherein said rotation mechanism comprises a connecting rod inserted into said rotation spindle and rotatable relative to said rotation spindle, said connecting rod side wall is provided with an inwardly recessed receiving groove, said rotation spindle side wall is provided with a through hole corresponding to said receiving groove, said receiving groove and said through hole together form said receiving space.
6. The chuck device as in claim 1, wherein said chuck comprises a clamping nut fixed in the direction of extension of said rotary shaft, said clamping nut being disposed around said jaws and rotatably coupled thereto, said rotary spindle driving said clamping nut.
7. The chuck device of claim 6, wherein the clamping mechanism further comprises a planetary gear assembly, the planetary gear assembly connecting the rotating spindle with the clamping nut, the rotating spindle driving the clamping nut to rotate via the planetary gear assembly.
8. The chuck device as in claim 7, wherein said planetary gear assembly comprises a planetary gear carrier and planetary gears disposed on said planetary gear carrier, said planetary gears being engaged with said rotating spindle, said rotating spindle driving said planetary gear carrier through said planetary gears to rotate about said rotational axis.
9. The chuck device of claim 8, wherein said planet carrier includes a first end and a second end having an outer diameter greater than said first end, wherein said planet carrier is disposed about said first end of said planet carrier, and wherein said second end of said planet carrier is disposed about said clamping nut.
10. A power tool comprising a chuck device according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610347179.7A CN107414745B (en) | 2016-05-24 | 2016-05-24 | Chuck device and electric tool provided with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610347179.7A CN107414745B (en) | 2016-05-24 | 2016-05-24 | Chuck device and electric tool provided with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107414745A CN107414745A (en) | 2017-12-01 |
| CN107414745B true CN107414745B (en) | 2024-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610347179.7A Active CN107414745B (en) | 2016-05-24 | 2016-05-24 | Chuck device and electric tool provided with same |
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| CN (1) | CN107414745B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108691958A (en) * | 2018-06-27 | 2018-10-23 | 广东广航科技有限公司 | A kind of dismantling device of electric connector |
| CN110261162B (en) * | 2019-07-22 | 2024-05-17 | 福建晋江热电有限公司 | Sampling machine |
| CN110261163B (en) * | 2019-07-22 | 2024-05-17 | 福建晋江热电有限公司 | Sampling device and sampling method |
| EP4364889A1 (en) * | 2021-08-24 | 2024-05-08 | Shandong Weida Machinery Co., Ltd | Clamping mechanism and electric tool |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6196554B1 (en) * | 1998-12-15 | 2001-03-06 | Power Tool Holders Incorporated | Locking chuck |
| CN1978104A (en) * | 2005-09-02 | 2007-06-13 | 雅各布卡盘制造公司 | Chuck with internal nut |
| JP3135402U (en) * | 2007-07-03 | 2007-09-13 | 仲展實業有限公司 | Tool connection device |
| CN101422823A (en) * | 2007-11-01 | 2009-05-06 | 苏州宝时得电动工具有限公司 | Power tool |
| CN101432089A (en) * | 2004-09-27 | 2009-05-13 | 布莱克和戴克公司 | Tool chuck with sleeve and clutch mechanism to remove operator variability |
| CN103252513A (en) * | 2012-02-17 | 2013-08-21 | 山东威达机械股份有限公司 | Chuck device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009029997A1 (en) * | 2007-09-06 | 2009-03-12 | Demain Technology Pty Ltd | A mechanical assembly for a power tool |
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2016
- 2016-05-24 CN CN201610347179.7A patent/CN107414745B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6196554B1 (en) * | 1998-12-15 | 2001-03-06 | Power Tool Holders Incorporated | Locking chuck |
| CN101432089A (en) * | 2004-09-27 | 2009-05-13 | 布莱克和戴克公司 | Tool chuck with sleeve and clutch mechanism to remove operator variability |
| CN1978104A (en) * | 2005-09-02 | 2007-06-13 | 雅各布卡盘制造公司 | Chuck with internal nut |
| JP3135402U (en) * | 2007-07-03 | 2007-09-13 | 仲展實業有限公司 | Tool connection device |
| CN101422823A (en) * | 2007-11-01 | 2009-05-06 | 苏州宝时得电动工具有限公司 | Power tool |
| CN103252513A (en) * | 2012-02-17 | 2013-08-21 | 山东威达机械股份有限公司 | Chuck device |
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| Publication number | Publication date |
|---|---|
| CN107414745A (en) | 2017-12-01 |
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