CN114227333A - Hydraulic chuck capable of clamping square products - Google Patents
Hydraulic chuck capable of clamping square products Download PDFInfo
- Publication number
- CN114227333A CN114227333A CN202111667397.6A CN202111667397A CN114227333A CN 114227333 A CN114227333 A CN 114227333A CN 202111667397 A CN202111667397 A CN 202111667397A CN 114227333 A CN114227333 A CN 114227333A
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- China
- Prior art keywords
- mounting
- clamping
- elastic
- piece
- layer
- 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.)
- Granted
Links
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 claims abstract 2
- 238000003754 machining Methods 0.000 description 12
- 238000009434 installation Methods 0.000 description 10
- 210000000078 claw Anatomy 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/12—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for securing to a spindle in general
Abstract
The invention provides a hydraulic chuck capable of clamping a tetragonal product, which comprises an outer-layer fixing piece, a middle elastic piece, an inner-layer mounting piece and four clamping jaws, wherein the outer-layer fixing piece, the middle elastic piece and the inner-layer mounting piece are coaxially arranged; a first clamping space is formed among the four clamping jaws, so that a square product can be conveniently clamped, and the positioning operation is convenient.
Description
Technical Field
The invention relates to the technical field of machining, in particular to a hydraulic chuck capable of clamping a square product.
Background
In the machining of mechanical parts, the machining clamping device plays an important role, ensures that parts are always in a firmly clamped state, and ensures the machining consistency and the machining quality of the parts. However, when a square part is machined by a lathe at present, the lathe needs to be clamped by four claws, the problems of low clamping efficiency, unstable size, poor machining precision and quality and the like exist, and an operator has high difficulty in clamping the part and is not easy to master.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a hydraulic chuck capable of clamping a square product.
In order to achieve the purpose, the invention adopts the following technical scheme: a hydraulic chuck capable of clamping square products comprises an outer-layer fixing piece, a middle elastic piece, an inner-layer mounting piece and four clamping jaws, wherein the outer-layer fixing piece is of a cylindrical structure, a containing groove is formed in the middle of the outer-layer fixing piece, and an annular bulge is formed in the middle of the end face, far away from the containing groove, of the outer-layer fixing piece; the middle elastic piece is arranged in the accommodating groove, the middle elastic piece and the outer fixing piece are coaxially arranged, the middle elastic piece comprises a base and four elastic chucks, the four elastic chucks are all connected with the base, the four elastic chucks are uniformly distributed on the base along the circumferential direction, the outer side surfaces of the four elastic chucks are all in contact with the wall surface of the accommodating groove, and a fixing groove is formed in the middle of the end surface of the base, close to the four elastic chucks; the inner-layer mounting piece is arranged among the four elastic chucks and coaxially arranged with the middle elastic piece, the inner-layer mounting piece comprises a fixing seat and four mounting blocks, the fixing seat is fixed in the fixing groove, the four mounting blocks are all connected with the fixing seat, the four mounting blocks are uniformly distributed on the fixing seat along the circumferential direction, a clamping gap is formed between every two adjacent mounting blocks, the four mounting blocks correspond to the four elastic chucks one by one, and each mounting block is in contact with the corresponding elastic chuck; four jack catchs and four installation pieces one-to-one, and every jack catch is fixed on its corresponding installation piece, forms first centre gripping space between four jack catchs, and first centre gripping space is the square structure.
Preferably, each mounting block comprises a connecting part and a mounting part, the connecting part is connected with the mounting part belonging to the same mounting block, the inner surface of the connecting part is coplanar with the inner surface of the mounting part belonging to the same mounting block, the distance from the outer surface of the connecting part to the central axis of the mounting part of the inner layer where the connecting part is located is smaller than the distance from the outer surface of the mounting part belonging to the same mounting block to the central axis of the mounting part of the inner layer where the connecting part is located, the connecting part is connected with the fixed seat, the mounting part is in contact with the elastic chuck corresponding to the mounting part, and each clamping jaw is fixed on the mounting part of the corresponding mounting block. Further, the outer surface of each claw is coplanar with the outer surface of the corresponding mounting block, the inner surface of each claw is positioned on the inner side of the inner surface of the corresponding mounting block, and the inner surface of each claw is a plane; the inner surface of the connecting part and the inner surface of the mounting part belonging to the same mounting block are both arc surfaces.
Preferably, evenly be equipped with a plurality of first through-holes along circumference on the lateral wall of outer mounting piece, evenly be equipped with a plurality of second through-holes along circumference on the lateral wall of inlayer installed part, first through-hole and second through-hole one-to-one, every first through-hole passes through the connecting block with its second through-hole that corresponds and is connected. Further, the second through holes are all located below the clamping gap between every two adjacent mounting blocks.
Preferably, the middle part of the end face, far away from the four elastic chucks, of the base is provided with a cross-shaped protrusion, the middle part of the bottom surface of the accommodating groove is provided with a cross-shaped recess, and the cross-shaped protrusion is matched with the cross-shaped recess.
Preferably, the distance from the end face of each elastic chuck far away from the base to the base is greater than the distance from the end face of the corresponding mounting block far away from the base to the base.
Compared with the prior art, the invention has the beneficial effects that: through the design that a clamping gap is formed between every two adjacent mounting blocks, each clamping jaw is fixed on the corresponding mounting block, and each mounting block is in contact with the corresponding elastic chuck, the mounting blocks can move inwards conveniently through the elastic chucks, so that the clamping jaws clamp square products, the machining precision is guaranteed, the parts can be quickly clamped, and the machining efficiency is improved; a first clamping space is formed among the four clamping jaws, so that a square product can be conveniently clamped, and the positioning operation is convenient.
Drawings
FIG. 1 is a schematic structural diagram of a hydraulic chuck capable of holding square products according to an embodiment of the present invention;
FIG. 2 is an internal structural view of FIG. 1;
FIG. 3 is a schematic view of the structure of FIG. 1 from another perspective;
FIG. 4 is a schematic structural diagram of an outer fixing element according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of an intermediate elastic member according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of an inner layer clamping member according to an embodiment of the invention.
Detailed Description
In order to further understand the objects, structures, features and functions of the present invention, the following embodiments are described in detail.
Referring to fig. 1 to 6, the hydraulic chuck for clamping square products of the present invention includes an outer fixing member 1, an intermediate elastic member 2, an inner mounting member 3, and four jaws 4.
Middle elastic component 2 sets up in storage tank 11, and middle elastic component 2 sets up with outer mounting 1 is coaxial, and middle elastic component 2 includes base 21 and four collet chuck 22, and four collet chucks 22 all are connected with base 21, and four collet chucks 22 evenly lay on base 21 along circumference, and four collet chuck 22's lateral surface all contacts with the groove wall of storage tank 11, and the base 21 is close to the terminal surface middle part of four collet chucks 22 and is equipped with fixed slot 211.
In a preferred embodiment, referring to fig. 4 and fig. 5, the central portion of the end surface of the base 21 away from the four elastic chucks 22 is provided with a cross-shaped protrusion 212, the central portion of the bottom surface of the accommodating groove 11 is provided with a cross-shaped recess 111, and the cross-shaped protrusion 212 and the cross-shaped recess 111 are matched with each other to prevent the intermediate elastic member 2 from rotating in the accommodating groove 11, thereby ensuring the clamping and fixing effect on the square product.
Inner layer installed part 3 sets up between four collet 22, inner layer installed part 3 sets up with middle elastic component 2 is coaxial, inner layer installed part 3 includes fixing base 31 and four installation piece 32, fixing base 31 is fixed in fixed slot 211, four installation piece 32 all are connected with fixing base 31, four installation piece 32 are evenly laid on fixing base 31 along circumference, all be equipped with centre gripping clearance 33 between two adjacent installation piece 32, four installation piece 32 and four collet 22 one-to-one, every installation piece 32 all contacts rather than the collet 22 that corresponds, in order to move to the inboard under collet 22's effect.
Four jack catchs 4 and four installation pieces 32 one-to-one, and every jack catch 4 is fixed on its corresponding installation piece 32, forms first centre gripping space 41 between four jack catchs 4, and first centre gripping space 41 is the square structure.
According to the hydraulic chuck of the embodiment, the clamping gap 321 is formed between the two adjacent mounting blocks 32, each clamping jaw 4 is fixed on the corresponding mounting block 32, and each mounting block 32 is in contact with the corresponding elastic chuck 22, so that the mounting blocks 32 can move inwards through the elastic chucks 22, the clamping jaws 4 clamp square products, the machining precision is guaranteed, the parts are quickly clamped, and the machining efficiency is improved; a first clamping space 41 is formed among the four clamping jaws, so that a square product can be clamped conveniently, and the positioning operation is convenient.
In a preferred embodiment, referring to fig. 6, each mounting block 32 comprises a connecting portion 321 and a mounting portion 322, the connecting portion 321 is connected with the mounting portion 322 belonging to the same mounting block 32, the inner surface of the connecting portion 321 is coplanar with the inner surface of the mounting portion 322 belonging to the same mounting block 32, the distance from the outer surface of the connecting portion 321 to the central axis of the inner-layer mounting member 3 is less than the distance from the outer surface of the mounting portion 322 belonging to the same mounting block 32 to the central axis of the inner-layer mounting member 3, the connecting portion 321 is connected with the fixed base 31, the mounting portion 322 is in contact with the corresponding collet 22, each jaw 4 is fixed on the mounting portion 322 of the corresponding mounting block 32, so that the contact area between the mounting block 32 and the collet 22 is smaller, and the mounting block 32 is more easily moved inwards by the collet 22, so that the jaws 4 grip the square product.
Referring to fig. 1 and fig. 6, two fixing holes 3221 are disposed on the mounting portion 322, mounting holes 42 are disposed on the claws 4 at positions corresponding to the two fixing holes 3221 on the mounting portion 322, and the mounting holes 42 are connected to the corresponding fixing holes 3221 through bolts.
With continued reference to fig. 6, the inner surface of the connecting portion 321 and the inner surface of the mounting portion 322 belonging to the same mounting block 32 are both arc surfaces, so as to facilitate manufacturing and mounting of various types of jaws.
Referring to fig. 1 and 6, the outer surface of each jaw 4 is coplanar with the outer surface of its corresponding mounting block 32, the inner surface of each jaw 4 is located inside the inner surface of its corresponding mounting block 32, and the inner surface of each jaw 4 is a plane, so as to ensure the stability of the hydraulic chuck structure and the clamping effect on square products.
Preferably, referring to fig. 1 and fig. 6 in combination, a plurality of first through holes 13 are uniformly formed in the sidewall of the outer fixing member 1 along the circumferential direction, a plurality of second through holes 34 are uniformly formed in the sidewall of the inner mounting member 3 along the circumferential direction, the plurality of first through holes 13 correspond to the plurality of second through holes 34 one to one, and each first through hole 13 is connected to the corresponding second through hole 34 through a connecting block (not shown in the figure) so as to combine the outer fixing member 1, the middle elastic member 2 and the inner mounting member 3 together, thereby ensuring the structural stability of the hydraulic chuck.
In order that the connecting block does not affect the movement of the mounting blocks 32, the plurality of second through holes 34 are each located below the clamping gap 33 between two adjacent mounting blocks 32.
Preferably, referring to fig. 1, the distance from the end surface of each collet 22 away from the base 21 to the base 21 is greater than the distance from the end surface of the corresponding claw 32 away from the base 21 to the base 21, so that the collet 22 easily pushes the claws 32 to move inward, thereby enabling the spacer 4 to clamp the square product.
In actual use, the outer fixing member 1 is a chuck body, and the hydraulic chuck works to clamp the elastic chuck 22 so that the mounting block 32 moves inwards, and the clamping jaws 4 clamp the square product.
According to the hydraulic chuck capable of clamping the square product, due to the design that the clamping gap is formed between every two adjacent mounting blocks, each clamping jaw is fixed on the corresponding mounting block, and each mounting block is in contact with the corresponding elastic chuck, the mounting blocks can move inwards conveniently through the elastic chucks, so that the clamping jaws clamp the square product, the machining precision is guaranteed, the parts are quickly clamped, and the machining efficiency is improved; a first clamping space is formed among the four clamping jaws, so that a square product can be conveniently clamped, and the positioning operation is convenient.
The present invention has been described in relation to the above embodiments, which are only exemplary of the implementation of the present invention. It should be noted that the disclosed embodiments do not limit the scope of the invention. Rather, it is intended that all such modifications and variations be included within the spirit and scope of this invention.
Claims (8)
1. A hydraulic chuck capable of clamping square products is characterized by comprising an outer layer fixing piece, a middle elastic piece, an inner layer mounting piece and four clamping jaws,
the outer-layer fixing piece is of a cylindrical structure, a containing groove is formed in the middle of the outer-layer fixing piece, and an annular bulge is formed in the middle of the end face, far away from the containing groove, of the outer-layer fixing piece;
the middle elastic piece is arranged in the accommodating groove, the middle elastic piece and the outer fixing piece are coaxially arranged, the middle elastic piece comprises a base and four elastic chucks, the four elastic chucks are all connected with the base, the four elastic chucks are uniformly distributed on the base along the circumferential direction, the outer side surfaces of the four elastic chucks are all in contact with the wall surface of the accommodating groove, and a fixing groove is formed in the middle of the end surface of the base, which is close to the four elastic chucks;
the inner-layer mounting piece is arranged among the four elastic chucks, the inner-layer mounting piece and the middle elastic piece are coaxially arranged, the inner-layer mounting piece comprises a fixing seat and four mounting blocks, the fixing seat is fixed in the fixing groove, the four mounting blocks are all connected with the fixing seat, the four mounting blocks are uniformly distributed on the fixing seat along the circumferential direction, a clamping gap is arranged between every two adjacent mounting blocks, the four mounting blocks correspond to the four elastic chucks one by one, and each mounting block is in contact with the corresponding elastic chuck;
the four clamping jaws correspond to the four mounting blocks one by one, each clamping jaw is fixed on the corresponding mounting block, a first clamping space is formed between the four clamping jaws, and the first clamping space is of a square structure.
2. The hydraulic chuck for clamping tetragonal products according to claim 1, wherein each mounting block includes a connection portion and a mounting portion, the connection portion is connected with the mounting portion belonging to the same mounting block, the inner surface of the connection portion is coplanar with the inner surface of the mounting portion belonging to the same mounting block, the distance from the outer surface of the connection portion to the central axis of the mounting member of the inner layer is less than the distance from the outer surface of the mounting portion belonging to the same mounting block to the central axis of the mounting member of the inner layer, the connection portion is connected with the fixed base, the mounting portion is contacted with the corresponding elastic collet, and each clamping jaw is mounted on the mounting portion of the corresponding mounting block.
3. The hydraulic chuck for holding square products of claim 2, wherein the outer surface of each jaw is coplanar with the outer surface of its corresponding mounting block, the inner surface of each jaw is located inside the inner surface of its corresponding mounting block, and the inner surface of each jaw is planar.
4. The hydraulic chuck according to claim 2, wherein the inner surface of the connecting portion and the inner surface of the mounting portion belonging to the same mounting block are both circular arc surfaces.
5. The hydraulic chuck for clamping square products according to claim 1, wherein a plurality of first through holes are uniformly formed in the side wall of the outer fixing member along the circumferential direction, a plurality of second through holes are uniformly formed in the side wall of the inner mounting member along the circumferential direction, the plurality of first through holes and the plurality of second through holes are in one-to-one correspondence, and each first through hole is connected with the corresponding second through hole through a connecting block.
6. The hydraulic chuck for holding square products of claim 5, wherein the second plurality of through holes are each located below the holding gap between two adjacent mounting blocks.
7. The hydraulic chuck according to claim 1, wherein the base has a cross-shaped protrusion at the middle of the end surface thereof away from the four elastic chucks, and a cross-shaped recess at the middle of the bottom of the receiving groove, wherein the cross-shaped protrusion is engaged with the cross-shaped recess.
8. A hydraulic chuck for holding square products according to claim 1, wherein each collet is spaced from said base by a distance greater than the distance of its corresponding mounting block from the end of said base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111667397.6A CN114227333B (en) | 2021-12-31 | 2021-12-31 | Hydraulic chuck capable of clamping square products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111667397.6A CN114227333B (en) | 2021-12-31 | 2021-12-31 | Hydraulic chuck capable of clamping square products |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114227333A true CN114227333A (en) | 2022-03-25 |
| CN114227333B CN114227333B (en) | 2024-05-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111667397.6A Active CN114227333B (en) | 2021-12-31 | 2021-12-31 | Hydraulic chuck capable of clamping square products |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114227333B (en) |
Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB364925A (en) * | 1930-03-12 | 1932-01-14 | Milton James Matthews | Improvements relating to collets |
| US2832604A (en) * | 1956-02-28 | 1958-04-29 | Ernault Batignolles Sa H | Clamping chuck |
| US3440713A (en) * | 1963-06-11 | 1969-04-29 | Continental Can Co | Method for forming a rivet and attaching a pull tab therewith |
| BE825783R (en) * | 1974-03-01 | 1975-06-16 | PROCESS FOR MANUFACTURING A HOLLOW RIVET FOR THE ASSEMBLY OF TWO SHEETS | |
| US4365401A (en) * | 1980-10-20 | 1982-12-28 | Owatonna Tool Company | Rivet removal and fastening tool |
| DE4239180A1 (en) * | 1992-01-25 | 1993-07-29 | Goetz Metall Anlagen | Clamp for contoured workpieces - is based on jaw block with clamping surface formed by rods pushed back against springs and locked when jaw is forced against work |
| US20090116934A1 (en) * | 2006-05-13 | 2009-05-07 | Henrob Limited | Self-piercing riveting |
| US20100287752A1 (en) * | 2009-05-14 | 2010-11-18 | Stanley Wojciechowski | Rivet system |
| CN204524935U (en) * | 2015-02-05 | 2015-08-05 | 苏州恒远精密数控设备有限公司 | Four sides point middle fixture |
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| CN207239467U (en) * | 2017-07-11 | 2018-04-17 | 东莞市力星激光科技有限公司 | A kind of adjustable big stroke is to heart gripping dogs |
| CN207915073U (en) * | 2018-03-08 | 2018-09-28 | 苏州思珀利尔工业技术有限公司 | The fixture of lathe process square cross |
| CN208020073U (en) * | 2018-04-09 | 2018-10-30 | 方丹卉 | A kind of turntable clamper easy to use |
| CN109226798A (en) * | 2018-11-20 | 2019-01-18 | 陕西海力特精密机械有限公司 | The chuck of anti-workpiece deformation |
| CN208744293U (en) * | 2018-09-27 | 2019-04-16 | 苏州嘉铨精密机械有限公司 | A kind of list cylinder four sides clamping fixture |
| CN208772498U (en) * | 2018-09-06 | 2019-04-23 | 青岛高盛特机械制造有限公司 | A kind of chuck of fast changeable claw |
| CN210817518U (en) * | 2019-08-20 | 2020-06-23 | 瑞智(青岛)精密机电有限公司 | Back-pull type three-jaw chuck |
| CN213857126U (en) * | 2020-11-06 | 2021-08-03 | 德昊通机电(大连)有限公司 | Jack catch clamping mechanism of digit control machine tool |
-
2021
- 2021-12-31 CN CN202111667397.6A patent/CN114227333B/en active Active
Patent Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB364925A (en) * | 1930-03-12 | 1932-01-14 | Milton James Matthews | Improvements relating to collets |
| US2832604A (en) * | 1956-02-28 | 1958-04-29 | Ernault Batignolles Sa H | Clamping chuck |
| US3440713A (en) * | 1963-06-11 | 1969-04-29 | Continental Can Co | Method for forming a rivet and attaching a pull tab therewith |
| BE825783R (en) * | 1974-03-01 | 1975-06-16 | PROCESS FOR MANUFACTURING A HOLLOW RIVET FOR THE ASSEMBLY OF TWO SHEETS | |
| NL7502347A (en) * | 1974-03-01 | 1975-09-03 | Vaw Ver Aluminium Werke Ag | PROCEDURE FOR MANUFACTURING A HOLLOW RIVET FOR ATTACHING A TEAR-OPEN LIP TO THE COVER MIRROR OF A TEAR-OPEN LID OF A BOX. |
| US4365401A (en) * | 1980-10-20 | 1982-12-28 | Owatonna Tool Company | Rivet removal and fastening tool |
| DE4239180A1 (en) * | 1992-01-25 | 1993-07-29 | Goetz Metall Anlagen | Clamp for contoured workpieces - is based on jaw block with clamping surface formed by rods pushed back against springs and locked when jaw is forced against work |
| US20090116934A1 (en) * | 2006-05-13 | 2009-05-07 | Henrob Limited | Self-piercing riveting |
| US20100287752A1 (en) * | 2009-05-14 | 2010-11-18 | Stanley Wojciechowski | Rivet system |
| US20150352642A1 (en) * | 2013-01-25 | 2015-12-10 | Volker Henke | Compensating Chuck |
| CN204524935U (en) * | 2015-02-05 | 2015-08-05 | 苏州恒远精密数控设备有限公司 | Four sides point middle fixture |
| CN205200586U (en) * | 2015-12-14 | 2016-05-04 | 宁波卡斯尔机械制造有限公司 | Three -jaw chuck and numerical control lathe |
| CN207239467U (en) * | 2017-07-11 | 2018-04-17 | 东莞市力星激光科技有限公司 | A kind of adjustable big stroke is to heart gripping dogs |
| CN207915073U (en) * | 2018-03-08 | 2018-09-28 | 苏州思珀利尔工业技术有限公司 | The fixture of lathe process square cross |
| CN208020073U (en) * | 2018-04-09 | 2018-10-30 | 方丹卉 | A kind of turntable clamper easy to use |
| CN208772498U (en) * | 2018-09-06 | 2019-04-23 | 青岛高盛特机械制造有限公司 | A kind of chuck of fast changeable claw |
| CN208744293U (en) * | 2018-09-27 | 2019-04-16 | 苏州嘉铨精密机械有限公司 | A kind of list cylinder four sides clamping fixture |
| CN109226798A (en) * | 2018-11-20 | 2019-01-18 | 陕西海力特精密机械有限公司 | The chuck of anti-workpiece deformation |
| CN210817518U (en) * | 2019-08-20 | 2020-06-23 | 瑞智(青岛)精密机电有限公司 | Back-pull type three-jaw chuck |
| CN213857126U (en) * | 2020-11-06 | 2021-08-03 | 德昊通机电(大连)有限公司 | Jack catch clamping mechanism of digit control machine tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114227333B (en) | 2024-05-03 |
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