CN109454252B - Clamping device of chuck and chuck - Google Patents
Clamping device of chuck and chuck Download PDFInfo
- Publication number
- CN109454252B CN109454252B CN201811482151.XA CN201811482151A CN109454252B CN 109454252 B CN109454252 B CN 109454252B CN 201811482151 A CN201811482151 A CN 201811482151A CN 109454252 B CN109454252 B CN 109454252B
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- China
- Prior art keywords
- clamping
- clamping device
- piece
- nut sleeve
- positioning groove
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- 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.)
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Links
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000003754 machining Methods 0.000 description 3
- 238000003801 milling Methods 0.000 description 3
- 238000005553 drilling Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
- B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
- B23B31/1207—Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving obliquely to the axis of the chuck in a plane containing this axis
- B23B31/123—Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving obliquely to the axis of the chuck in a plane containing this axis with locking arrangements
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
- Clamps And Clips (AREA)
Abstract
The invention provides a clamping device and a chuck with the same. The clamping device is used for clamping the clamped piece, the clamping device is provided with a locking state for clamping the clamping head and a releasing state for loosening the clamping head, and the clamping device comprises: the shell is of a cylindrical structure with a middle through space, and a first positioning groove and a second positioning groove which are arranged at intervals with the first positioning groove are arranged on the inner wall surface of the shell; the anti-loosening device comprises an anti-loosening piece, wherein the anti-loosening piece is positioned in the shell, an elastic bulge is arranged on the anti-loosening piece, and the anti-loosening piece is rotatably arranged relative to the shell, so that the elastic bulge is switched between a first positioning groove and a second positioning groove, and the switching of the clamping device between a release state and a locking state is realized. By applying the technical scheme of the invention, the problem that the clamped piece in the prior art is easy to loosen or generates axial movement, so that the clamped piece cannot work normally can be solved.
Description
Technical Field
The invention relates to the technical field of clamps, in particular to a clamping device of a clamping head and the clamping head.
Background
When drilling, milling and other operations are performed by using tools such as a machine tool, an electric drill and the like in a machining activity, a clamping head is often used for clamping and positioning a clamped piece (such as a drill bit, a milling cutter and the like) so as to improve the accuracy of drilling or milling. In actual operation, vibration and friction exist in the machining process, so that the clamped piece is easy to loose, the normal work of a machine tool or an electric drill is affected, and the machining precision cannot be guaranteed.
Disclosure of Invention
The invention mainly aims to provide a clamping device of a clamping head and the clamping head, so as to solve the problem that a clamped piece in the prior art is easy to loosen, and therefore cannot work normally.
In order to achieve the above object, according to one aspect of the present invention, there is provided a clamping device of a chuck for clamping a clamped member, the clamping device having a locked state for clamping the clamped member and a released state for releasing the clamped member, the clamping device comprising: the shell is of a cylindrical structure with a middle through space, and a first positioning groove and a second positioning groove which are arranged at intervals with the first positioning groove are arranged on the inner wall surface of the shell; the anti-loosening device comprises an anti-loosening piece, wherein the anti-loosening piece is positioned in the shell, an elastic bulge is arranged on the anti-loosening piece, and the anti-loosening piece is rotatably arranged relative to the shell, so that the elastic bulge is switched between a first positioning groove and a second positioning groove, and the switching of the clamping device between a release state and a locking state is realized.
Further, the locking piece is provided with a plurality of elastic protrusions, and when the locking piece rotates relative to the shell, one of the elastic protrusions is optionally matched with the first positioning groove or the second positioning groove, so that the clamping device is in a release state or a locking state.
Further, the clamping device further comprises a nut sleeve, the nut sleeve is located in the shell, and the nut sleeve is connected with the anti-loose piece to drive the anti-loose piece to rotate relative to the shell.
Further, the nut is provided with a mounting hole, and the locking piece is provided with a fixing protrusion corresponding to the mounting hole, and the fixing protrusion is matched with the mounting hole in a clamping manner so as to connect the locking piece to the nut.
Further, the nut sleeve is provided with a plurality of mounting holes, and the locking piece is provided with a plurality of fixing protrusions.
Further, one end of the nut sleeve facing the anti-loose piece is provided with a clamping port, the anti-loose piece is provided with a plug-in portion, and the side wall surface of the plug-in portion is attached to the inner wall surface of the clamping port, so that when the nut sleeve rotates, the nut sleeve drives the anti-loose piece to rotate relative to the shell.
Further, the clamping device further comprises a built-in clamp spring, the built-in clamp spring is located in the shell and connected with the anti-loose piece to limit the anti-loose piece to move relative to the axis direction of the nut sleeve.
Further, the clamping device further comprises a clamping body, the clamping body is located in the shell, and the anti-loose piece is connected with one end, far away from the clamping body, of the nut sleeve or one end, close to the clamping body, of the nut sleeve along the axis direction of the clamping body.
Further, the clamping device further comprises a clamping spring, and the clamping spring is clamped on the periphery of the clamped piece to limit movement of the nut sleeve relative to the axial direction of the shell.
Further, the clamping device further comprises a plurality of clamping jaws, a plurality of clamping holes for penetrating the clamping jaws are formed in the clamping body, and the clamping jaws move along the axial direction of the clamping holes so as to clamp or loosen the clamped piece.
According to another aspect of the present invention, there is provided a chuck including a gripped member and a clamping device for clamping the gripped member, the clamping device being the clamping device described above.
By adopting the technical scheme, the elastic bulge on the locking piece can be selectively switched with the first positioning groove or the second positioning groove on the shell due to the locking piece, so that when the chuck works, the elastic bulge is combined with the second positioning groove, the clamping device is in a locking state, the clamped piece is ensured not to be loosened or moved, and the normal work and the working precision of the clamped piece are ensured; when the clamped piece needs to be replaced or loosened, the elastic bulge is matched with the first positioning groove, so that the clamping device is in a release state, and the clamped piece can be conveniently detached or replaced. Therefore, through the arrangement, the clamping device is guaranteed to have good anti-loosening effect in the high-speed working process of the clamping head, so that the clamped piece is guaranteed not to fall off or generate axial movement, and the clamped piece is guaranteed to accurately and precisely finish the work.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:
fig. 1 shows a schematic cross-sectional structure of an embodiment one of a clamping device of a chuck according to the present invention;
FIG. 2 shows an exploded view of the collet of FIG. 1;
FIG. 3 shows a schematic structural view of the housing of the clamping device of FIG. 1;
FIG. 4 shows a schematic bottom view of the chuck of FIG. 1 (with the clamping device in a locked condition);
FIG. 5 shows a schematic bottom view of the chuck of FIG. 1 (with the clamping device in a released state);
FIG. 6 shows a schematic structural view of a locking element of the clamping device of FIG. 1;
FIG. 7 shows a schematic structural view of a screw sleeve of the clamping device of FIG. 2;
fig. 8 shows a schematic cross-sectional structure of a second embodiment of a clamping device of a chuck according to the invention;
Fig. 9 shows a schematic structural view one of a third embodiment of a clamping device of a chuck according to the present invention (wherein only the mating structure of the chuck body, the anti-loose member and the nut is shown); and
Fig. 10 shows a second structural schematic diagram of a third embodiment of the clamping device of the chuck according to the invention (wherein only the mating structure of the clamping body, the anti-loose member and the nut is shown).
Wherein the above figures include the following reference numerals:
1. Clamping the body; 2. a housing; 21. a first positioning groove; 22. a second positioning groove; 3. a locking piece; 31. an elastic protrusion; 32. a fixing protrusion; 33. a plug-in part; 4. a nut sleeve; 41. a mounting hole; 42. a card interface; 5. a spring plate; 6. clamping springs; 61. a clamp spring is arranged in the clamp spring; 7. a gasket; 8. a nut; 9. a clamping jaw; 10. and (3) a bearing.
Detailed Description
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
Example 1
As shown in fig. 1 to 7, a first embodiment of the present invention provides a clamping device of a chuck for clamping a clamped member. The clamping device of the first embodiment has a locked state of clamping the clamped member and a released state of releasing the clamped member, and includes a housing 2 and a locking member 3. The shell 2 is of a tubular structure with a middle through space, and a first positioning groove 21 and a second positioning groove 22 which is arranged at intervals with the first positioning groove 21 are arranged on the inner wall surface of the shell 2; the locking piece 3 is located in the shell 2, an elastic bulge 31 is arranged on the locking piece 3, and the locking piece 3 is rotatably arranged relative to the shell 2, so that the elastic bulge 31 is switched between the first positioning groove 21 and the second positioning groove 22, and the clamping device is switched between a release state and a locking state.
In this embodiment, since the locking piece 3 is provided, the elastic protrusion 31 on the locking piece 3 can be selectively switched with the first positioning groove 21 or the second positioning groove 22 on the housing 2, so that when the clamped piece works, the elastic protrusion 31 is combined with the second positioning groove 22, so that the clamping device is in a locking state, the clamped piece is ensured not to be loosened or moved, and the normal work and the working precision of the clamped piece are ensured; when the clamped piece needs to be replaced or loosened, the elastic protrusions 31 are matched with the first positioning grooves 21, so that the clamping device is in a release state, and the clamped piece can be conveniently detached or replaced. Therefore, through the arrangement, the clamping device has good anti-loosening effect in the high-speed working process of the clamped piece, so that the clamped piece is prevented from falling off or generating axial float, and the clamped piece is ensured to accurately and precisely finish the work.
As shown in fig. 2 to 6, in the first embodiment, the locking member 3 is provided with a plurality of elastic protrusions 31, and when the locking member 3 rotates relative to the housing 2, one of the plurality of elastic protrusions 31 selectively cooperates with the first positioning groove 21 or the second positioning groove 22 to bring the clamping device into a released state or a locked state.
Specifically, as shown in fig. 4, the elastic protrusion 31 on the locking member 3 is engaged with the first positioning groove 21 in the housing 2, and at this time, the clamping device is in a released state, and the clamped member can be disassembled or replaced; as shown in fig. 5, the elastic projection 31 of the locking piece 3 is engaged with the second positioning groove 22 in the housing 2, and at this time, the clamping device is in the advanced state. By rotating the locking member 3, the elastic protrusions 31 are selectively engaged with the first positioning groove 21 or the second positioning groove 22, so that the clamping device can be switched between different states. Moreover, due to the arrangement of the anti-loosening element 3, when the elastic bulge 31 is matched with the second positioning groove 22, good anti-loosening performance of the clamp device can be ensured, the clamped element is ensured not to loosen or axially float, and further the normal work of the clamped element is ensured.
As shown in fig. 1,2 and 7, in the first embodiment, the clamping device further includes a nut sleeve 4, the nut sleeve 4 is located in the housing 2, and the nut sleeve 4 is connected with the anti-loosening element 3 to drive the anti-loosening element 3 to rotate relative to the housing 2.
In this embodiment, the nut sleeve 4 is rotatably disposed relative to the housing 2, and the locking piece 3 and the nut sleeve 4 are relatively fixed, so that the locking piece 3 can rotate relative to the housing 2 under the driving of the nut sleeve 4, and the elastic protrusion 31 can be switched between the first positioning groove 21 and the second positioning groove 22, so as to realize the switching of different states of the clamping device.
As shown in fig. 6 and 7, in the first embodiment, the nut sleeve 4 is provided with a mounting hole 41, the locking member 3 is provided with a fixing protrusion 32 corresponding to the mounting hole 41, and the fixing protrusion 32 is engaged with the mounting hole 41 in a clamping manner so as to connect the locking member 3 to the nut sleeve 4.
Specifically, the locking piece 3 is of an annular structure, the outer wall surface of the locking piece 3 is of a step structure, and the fixing boss 32 is arranged on a small-diameter section of the step structure. The fixing protrusion 32 is in clamping fit with the mounting hole 41, so that when the nut sleeve 4 rotates, the locking piece 3 and the nut sleeve 4 do not move relatively, and the nut sleeve 4 can drive the locking piece 3 to rotate relative to the shell 2, so that the clamping device can be switched between a locking state and a releasing state.
As shown in fig. 6 and 7, in the first embodiment, the nut housing 4 is provided with a plurality of mounting holes 41, and the locking member 3 is provided with a plurality of fixing protrusions 32.
Preferably, the plurality of mounting holes 41 are provided in one-to-one correspondence with the plurality of fixing protrusions 32, which ensures the connection strength between the nut housing 4 and the locking member 3.
Of course, in an alternative embodiment not shown in the drawings, the number of the mounting holes 41 and the number of the fixing protrusions 32 may be set to be different, for example, the number of the mounting holes 41 is greater than the number of the fixing protrusions 32, so that the fixing protrusions 32 may be selectively matched with the mounting holes 41, and connection failure caused by loose clamping between the fixing protrusions 32 and one of the mounting holes 41 is avoided.
As shown in fig. 6 and 7, in the first embodiment, a clamping port 42 is provided at one end of the nut sleeve 4 facing the locking member 3, a plugging portion 33 is provided on the locking member 3, and a side wall surface of the plugging portion 33 is attached to an inner wall surface of the clamping port 42, so that the nut sleeve 4 drives the locking member 3 to rotate relative to the housing 2 when the nut sleeve 4 rotates.
Specifically, when the nut sleeve 4 is matched with the locking piece 3, the plug-in part 33 is inserted into the clamping interface 42, and when the nut sleeve 4 is rotated, the inner wall of the clamping interface 42 faces the side wall surface of the plug-in part 33 to play a driving role, so that the nut sleeve 4 drives the locking piece 3 to rotate relative to the shell.
Preferably, as shown in fig. 1 and 2, in the first embodiment, the clamping device further includes a clamping body 1, the clamping body 1 is located in the housing 2, and the anti-loose member 3 is connected to an end of the nut sleeve 4 away from the clamping body 1 along an axial direction of the clamping body 1.
As shown in fig. 1 and 2, in the first embodiment, the clamping device further includes a clamp spring 6, and the clamp spring 6 is clamped on the outer periphery of the clamped member to limit the movement of the nut sleeve 4 relative to the housing 2 in the axial direction.
Through the arrangement, the position of the nut sleeve 4 in the shell 2 is limited, so that the movement of the nut sleeve 4 in the axial direction relative to the shell 2 is effectively avoided, and the normal operation of the clamping device is ensured.
As shown in fig. 1 and 2, in the first embodiment, the clamping device further includes a plurality of clamping jaws 9, and the clamping body 1 is provided with a plurality of clamping holes for penetrating the plurality of clamping jaws 9, and the plurality of clamping jaws 9 move along the axial direction of the clamping holes to clamp or unclamp the clamped member.
Preferably, the clamping device in the first embodiment includes three clamping jaws 9, the clamping body 1 is provided with clamping holes corresponding to the three clamping jaws 9, the three clamping jaws 9 are installed in the clamping holes, and move in the clamping holes along the axial direction of the clamping holes relative to the clamping body 1, so as to clamp or unclamp the clamped piece.
The first embodiment of the invention also provides a chuck, which comprises a clamped piece and a clamping device for clamping the clamped piece, wherein the clamping device is the clamping device.
In the first embodiment, the locking piece 3 is provided, so that the elastic protrusion 31 on the locking piece 3 can be selectively switched with the first positioning groove 21 or the second positioning groove 22 on the housing 2, when the clamped piece works, the elastic protrusion 31 is combined with the second positioning groove 22, the clamping device is in a locking state, the clamped piece is ensured not to be loosened or moved, and the normal work and the working precision of the clamped piece are ensured; when the clamped piece needs to be replaced or loosened, the elastic protrusions 31 are matched with the first positioning grooves 21, so that the clamping device is in a release state, and the clamped piece can be conveniently detached or replaced.
Therefore, a chuck having the above-described clamping device also has the above-described advantages.
Example two
The second embodiment differs from the first embodiment in that:
As shown in fig. 8, in the second embodiment, the clamping device further includes a built-in clip spring 61, the built-in clip spring 61 is located in the housing 2, and the built-in clip spring 61 is connected with the locking member 3 to restrict the movement of the locking member 3 relative to the axial direction of the nut sleeve 4.
Specifically, the built-in clip spring 61 can restrict the movement of the locking piece 3 with respect to the axial direction of the nut case 4, and can drive the locking piece 3 to rotate together when the nut case 4 is rotated. Therefore, in the second embodiment, the built-in clip spring 61 can replace the fitting structure of the mounting hole 41 and the fixing boss 32 in the first embodiment, ensure that the locking member 3 can rotate following the nut sleeve 4, and can effectively restrict the play of the locking member 3 in the axial direction.
Other structures of the second embodiment are the same as those of the first embodiment, and will not be described here again.
Example III
The third embodiment differs from the first embodiment in that:
as shown in fig. 9 and 10, in the third embodiment, the locking member 3 is connected to one end of the nut housing 4 near the clamping body 1.
The above arrangement also ensures that the locking member 3 is arranged so that the clamping device can be switched between the locked state and the released state by only correspondingly changing the positions of the first positioning groove 21 and the second positioning groove 22 on the housing 2.
Other structures of the third embodiment are the same as those of the first embodiment, and will not be described here again.
From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:
The anti-loose piece is arranged, so that the elastic bulge on the anti-loose piece can be selectively switched with the first positioning groove or the second positioning groove on the shell, and when the chuck works, the elastic bulge is combined with the second positioning groove, so that the clamping device is in a locking state, the clamped piece is prevented from loosening, and the normal work and the working precision of the chuck are ensured; when the clamped piece needs to be replaced or loosened, the elastic bulge is matched with the first positioning groove, so that the clamping device is in a release state, and the clamped piece can be conveniently detached or replaced. Therefore, through the arrangement, the clamping device is guaranteed to have good anti-loosening effect in the high-speed working process of the clamping head, so that the clamped piece is guaranteed not to fall off or generate axial movement, and the clamped piece is guaranteed to accurately and precisely finish the work.
The clamping device can play a role in increasing anti-loose in the locking process of the clamping head, and improves the usability of the product. The clamping device has good locking performance and good anti-loosening effect. That is, the product can effectively prevent the shell from loosening in the high-speed rotation process of the electric drill in the use process, thereby ensuring that the clamped piece cannot fall out of the clamping head and completing the preset work.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A clamping device of a chuck for clamping a clamped member, the clamping device having a locked state for clamping the clamped member and a released state for releasing the clamped member, the clamping device comprising:
The shell (2) is of a cylindrical structure with a middle through space, and a first positioning groove (21) and a second positioning groove (22) which are arranged at intervals with the first positioning groove (21) are arranged on the inner wall surface of the shell (2);
The anti-loosening device comprises an anti-loosening piece (3), wherein the anti-loosening piece (3) is positioned in a shell (2), an elastic bulge (31) is arranged on the anti-loosening piece (3), the anti-loosening piece (3) is rotatably arranged relative to the shell (2) so that the elastic bulge (31) is switched between a first positioning groove (21) and a second positioning groove (22), and the clamping device is switched between the release state and the locking state;
The clamping device further comprises a nut sleeve (4), the nut sleeve (4) is positioned in the shell (2), and the nut sleeve (4) is connected with the anti-loose piece (3) so as to drive the anti-loose piece (3) to rotate relative to the shell (2);
The anti-loose piece (3) and the nut sleeve (4) are arranged in a split mode.
2. Clamping device according to claim 1, wherein the anti-loose member (3) is provided with a plurality of said elastic protrusions (31), one of the plurality of elastic protrusions (31) being selectively engageable with the first detent (21) or the second detent (22) when the anti-loose member (3) is rotated relative to the housing (2) to bring the clamping device into the released state or into the locked state.
3. Clamping device according to claim 1, characterized in that the nut sleeve (4) is provided with a mounting hole (41), the locking piece (3) is provided with a fixing protrusion (32) corresponding to the mounting hole (41), and the fixing protrusion (32) is in clamping fit with the mounting hole (41) so as to connect the locking piece (3) to the nut sleeve (4).
4. A clamping device according to claim 3, characterized in that the nut sleeve (4) is provided with a plurality of mounting holes (41), and the locking element (3) is provided with a plurality of fixing protrusions (32).
5. Clamping device according to claim 1, characterized in that one end of the nut sleeve (4) facing the anti-loose piece (3) is provided with a clamping interface (42), the anti-loose piece (3) is provided with a plug-in part (33), and the side wall surface of the plug-in part (33) is attached to the inner wall surface of the clamping interface (42), so that when the nut sleeve (4) rotates, the nut sleeve (4) drives the anti-loose piece (3) to rotate relative to the shell (2).
6. Clamping device according to claim 1, characterized in that it further comprises a built-in snap spring (61), said built-in snap spring (61) being located within said housing (2), said built-in snap spring (61) being connected with said anti-loose element (3) to limit the movement of said anti-loose element (3) with respect to the axial direction of said nut sleeve (4).
7. Clamping device according to claim 1, characterized in that the clamping device further comprises a clamping body (1), wherein the clamping body (1) is located in the housing (2), and the anti-loose piece (3) is connected with one end of the nut sleeve (4) far away from the clamping body (1) or one end of the nut sleeve (4) close to the clamping body (1) along the axial direction of the clamping body (1).
8. Clamping device according to any of claims 1 to 7, characterized in that it further comprises a snap spring (6), which snap spring (6) is snapped onto the outer circumference of the clamped piece to limit the movement of the nut sleeve (4) in the axial direction with respect to the housing (2).
9. Clamping device according to claim 7, characterized in that the clamping device further comprises a plurality of clamping jaws (9), wherein the clamping body (1) is provided with a plurality of clamping holes for penetrating the clamping jaws (9), and the clamping jaws (9) move along the axial direction of the clamping holes so as to clamp or unclamp the clamped piece.
10. A chuck comprising a clamped part and a clamping device for clamping the clamped part, characterized in that the clamping device is a clamping device according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811482151.XA CN109454252B (en) | 2018-12-05 | 2018-12-05 | Clamping device of chuck and chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811482151.XA CN109454252B (en) | 2018-12-05 | 2018-12-05 | Clamping device of chuck and chuck |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109454252A CN109454252A (en) | 2019-03-12 |
| CN109454252B true CN109454252B (en) | 2024-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811482151.XA Active CN109454252B (en) | 2018-12-05 | 2018-12-05 | Clamping device of chuck and chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109454252B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11511402B2 (en) | 2019-03-26 | 2022-11-29 | Black & Decker Inc. | Screwdriver and tool holder |
| CN110508839A (en) * | 2019-07-02 | 2019-11-29 | 山东威达雷姆机械有限公司 | A kind of anti-loosening locking drill chuck |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105345100A (en) * | 2015-12-18 | 2016-02-24 | 山东威达机械股份有限公司 | Lock-carried hand-tight drill chuck capable of releasing deformation force |
| CN209239098U (en) * | 2018-12-05 | 2019-08-13 | 山东威达机械股份有限公司 | The clamping device and collet of collet |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2403525Y (en) * | 2000-01-19 | 2000-11-01 | 山东威达机床工具集团总公司 | locking type drill chuck |
| WO2014094201A1 (en) * | 2012-12-17 | 2014-06-26 | 威海达旺五金制品有限责任公司 | Self-locking wrench drill chuck |
| ES2610053B2 (en) * | 2015-09-22 | 2019-11-27 | Stryker Corp | KEYBOARD HOLDER WITH LOCK DEVICE |
-
2018
- 2018-12-05 CN CN201811482151.XA patent/CN109454252B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105345100A (en) * | 2015-12-18 | 2016-02-24 | 山东威达机械股份有限公司 | Lock-carried hand-tight drill chuck capable of releasing deformation force |
| CN209239098U (en) * | 2018-12-05 | 2019-08-13 | 山东威达机械股份有限公司 | The clamping device and collet of collet |
Also Published As
| Publication number | Publication date |
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| CN109454252A (en) | 2019-03-12 |
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