CN107214549B - High-precision rotary chuck - Google Patents
High-precision rotary chuck Download PDFInfo
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- CN107214549B CN107214549B CN201710442434.0A CN201710442434A CN107214549B CN 107214549 B CN107214549 B CN 107214549B CN 201710442434 A CN201710442434 A CN 201710442434A CN 107214549 B CN107214549 B CN 107214549B
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- Prior art keywords
- linear guide
- mounting
- guide rail
- movable piece
- mounting seat
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping On Spindles (AREA)
Abstract
A high precision spin chuck. The problem that current swivel clamp precision is not high is mainly solved. The method is characterized in that: the front end face of the mounting seat is provided with two symmetrically arranged mounting bosses, the outer side of each mounting boss is provided with a first linear guide rail, and the inner side of each mounting boss is provided with a second linear guide rail perpendicular to the first linear guide rail; the clamping plate is arranged between the two mounting bosses and is in sliding fit with the second linear guide rail, the outer side surface of the clamping plate is an inclined surface, and a third linear guide rail is arranged on the inclined surface; the movable piece is in sliding fit with the first linear guide rail and the third linear guide rail. The driving piece slides under the effect of the power source to promote the movable piece through the ejector pin and remove along first linear guide, the movable piece cooperates with the third linear guide on the splint simultaneously, thereby can extrude the inclined plane, makes two splint slide along second linear guide, and its symmetry center remains unchanged throughout, even the duplicate device part also can not change, and stability is better, and the precision is very high.
Description
Technical Field
The invention relates to a clamp for machining parts, in particular to a high-precision rotary chuck.
Background
At present, some precision parts on the market require high precision, so that during secondary processing, a workpiece needs to be positioned by a clamp and then processed.
Particularly, the precision machining of some shaft parts needs to drive the rapid rotation of the shaft parts during machining, and then the machining is carried out by feeding, but most of the existing shaft parts adopt elastic chucks, the elastic chucks are low in precision and poor in symmetry, the repeated clamping is easy to cause center position deviation, and the machining precision of the parts is easy to influence.
Disclosure of Invention
In order to overcome the defects of the background technology, the invention provides a high-precision rotary chuck, which solves the problem of low precision of the existing rotary clamp.
The invention adopts the technical scheme that: a high-precision rotary chuck comprises a mounting seat, a movable piece, two clamping plates and a driving piece; the mounting seat is provided with a first central hole and a plurality of through holes which are uniformly distributed along the circumferential direction of the first central hole, the front end surface of the mounting seat is also provided with two mounting bosses which are symmetrically distributed along the first central hole, the outer sides corresponding to the two mounting bosses are provided with first linear guide rails which extend along the front-back direction, and the inner sides corresponding to the two mounting bosses are provided with second linear guide rails which are perpendicular to the first linear guide rails; the two clamping plates are correspondingly arranged between the two mounting bosses and are in sliding fit with the second linear guide rail, the outer side surfaces of the clamping plates are inclined surfaces, and third linear guide rails extending along the front-rear direction are arranged on the inclined surfaces; the movable piece is sleeved outside the two mounting bosses, and is in sliding fit with the first linear guide rail and the third linear guide rail; the driving piece drives and connects the movable piece, can drive the movable piece to slide back and forth along the first linear guide rail.
The driving piece is arranged at the rear end of the mounting seat and is connected with a power source for driving the driving piece to move back and forth, a second center hole corresponding to the first center hole and a plurality of ejector rods uniformly distributed along the circumference of the second center hole are arranged at the center of the driving piece, and the ejector rods correspond to the through holes and penetrate through the through holes to prop against the movable piece.
And the opposite sides of the 2 clamping plates are provided with arc-shaped grooves extending along the front-back direction.
The front end of the clamping plate is also provided with a clamping block.
The section of the mounting seat along the front-back direction is circular, a first annular baffle plate arranged along the outer edge of the mounting seat is arranged at the front end of the mounting seat, and the outer wall of the movable piece is attached to the inner wall of the first annular baffle plate.
The rear end of mount pad is equipped with the second annular baffle that sets up along its outward flange, the driving piece outer wall is laminated with second annular baffle inner wall mutually.
The inner wall of the second annular baffle is provided with a plurality of limit bosses uniformly distributed in the circumferential direction, and the outer wall of the driving piece is provided with limit grooves matched with the limit bosses.
Still be equipped with the connecting seat, the connecting seat is equipped with a plurality of circumference evenly arranged's mounting hole, mount pad fixed mounting is on the connecting seat, driving piece terminal surface center is equipped with and passes the connecting seat and slide complex annular boss with the connecting seat.
The beneficial effects of the invention are as follows: by adopting the scheme, the driving piece slides under the effect of the power source to promote the moving piece through the ejector pin and remove along first linear guide, the moving piece cooperates with the third linear guide on the splint simultaneously, thereby can extrude the inclined plane, makes two splint slide along second linear guide, and its symmetry center remains unchanged throughout, even the repetition device part also can not change, stability is better, and the precision is very high.
Drawings
Fig. 1 is a schematic diagram of a high precision spin chuck according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a front structure of a high-precision spin chuck according to an embodiment of the present invention.
Fig. 3 is a schematic cross-sectional view of the structure at A-A in fig. 2.
Fig. 4 is a schematic cross-sectional view of the structure at B-B in fig. 2.
Fig. 5 is a schematic view of the structure of the high precision spin chuck according to the embodiment of the invention after removal of the movable member.
Fig. 6 is a schematic structural diagram of a mounting base according to an embodiment of the invention.
Fig. 7 is a schematic structural diagram of a driving member according to an embodiment of the present invention.
Fig. 8 is a schematic structural view of a splint according to an embodiment of the present invention.
In the figure, 1-mounting seat, 11-first center hole, 12-through hole, 13-mounting boss, 14-first annular baffle, 15-second annular baffle, 16-spacing boss, 2-movable piece, 3-splint, 31-inclined plane, 32-arc recess, 4-driving piece, 41-second center hole, 42-ejector pin, 43-spacing recess, 44-annular boss, 5-first straight line guide rail, 6-second straight line guide rail, 7-third straight line guide rail, 8-clamp splice, 9-connecting seat, 91-mounting hole.
Detailed Description
To make the above objects, features and advantages of the present invention more comprehensible, the present invention is further described in detail with reference to the accompanying drawings, and the following examples are given for illustrative purpose only and are not to be construed as limiting the scope of the present invention.
In the description of the present invention, it should be noted that the azimuth or positional relationship indicated by the terms "rear", "front", "inner", "outer", etc. are azimuth positions when the high-precision spin chuck is normally used, such as "front" being a position close to the processing end, and then being a position far from the processing end, and "inner" being a position close to the center, and "outer" being a position far from the center, are provided for convenience in describing the present invention and for simplifying the description, and are not indicative or implying that the apparatus or element being referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in the figure, the high-precision rotary chuck comprises a mounting seat 1, a movable part 2, two clamping plates 3 and a driving part 4.
The section of the mounting seat 1 along the front and rear direction is circular, a first central hole 11 and a plurality of through holes 12 which are uniformly distributed along the circumferential direction of the first central hole 11 are arranged, two mounting bosses 13 which are symmetrically distributed along the first central hole 11 are also arranged on the front end surface of the mounting seat 1, a first linear guide rail 5 which extends along the front and rear direction is arranged on the outer side corresponding to the two mounting bosses 13, and a second linear guide rail 6 which is perpendicular to the first linear guide rail 5 is arranged on the inner side corresponding to the two mounting bosses 13; the two clamping plates 3 are correspondingly arranged between the two mounting bosses 13 and are in sliding fit with the second linear guide rail 6, the clamping plates 3 are symmetrically arranged along the first central hole 11, the outer side surfaces of the clamping plates are inclined surfaces 31, and the inclined surfaces 31 are provided with third linear guide rails 7 extending along the front-rear direction; the movable piece 2 is sleeved outside the two mounting bosses 13, and the movable piece 2 is in sliding fit with the first linear guide rail 5 and the third linear guide rail 7; the driving piece 4 is arranged at the rear end of the mounting seat 1 and is connected with a power source for driving the driving piece to move forwards and backwards, a second center hole 41 corresponding to the first center hole 11 and a plurality of ejector rods 42 uniformly distributed along the circumference of the second center hole 41 are arranged at the center of the driving piece 4, and the ejector rods 42 correspond to the through holes 12 and penetrate through the through holes 12 to support the movable piece 2.
The part passes second centre bore 41, first centre bore 11 and sets up two between splint 3, driving piece 4 slides under the effect of power supply to promote movable part 2 through ejector pin 42 and remove along first linear guide 5, movable part 2 cooperates with the third linear guide 7 on the splint 3 simultaneously, thereby can extrude inclined plane 31, makes two splint 3 slide along second linear guide 6, and its symmetry center can remain unchanged throughout, even the repetition device part also can not change, and stability is better, and the precision is very high.
As shown in the figure, 2 opposite sides of the clamping plate 3 are provided with arc-shaped grooves 32 extending along the front-rear direction, the parts to be rotationally processed are shaft parts, the parts can be matched with each other better through the arc-shaped grooves 32, and the clamping centering effect is better.
As shown in the figure, the front end of the clamping plate 3 can be detachably provided with a clamping block 8, and more parts can be clamped through the clamping block 8.
As shown in the figure, the front end of the mounting seat 1 is provided with a first annular baffle 14 arranged along the outer edge of the mounting seat, the outer wall of the movable piece 2 is attached to the inner wall of the first annular baffle 14, and the movable piece 2 is further limited by the first annular baffle 14, so that the movable piece is ensured to slide along a straight line, and the clamping precision is ensured.
Likewise, the rear end of the mounting seat 1 is provided with a second annular baffle 15 arranged along the outer edge of the mounting seat, and the outer wall of the driving piece 4 is attached to the inner wall of the second annular baffle 15.
As shown in the figure, the inner wall of the second annular baffle 15 is provided with a plurality of circumferentially uniformly distributed limit bosses 16, the outer wall of the driving piece 4 is provided with limit grooves 43 matched with the limit bosses 16, and the positioning fit is further realized through the limit bosses 16 and the limit grooves 43, so that the installation is convenient.
As shown in the figure, a connecting seat 9 is further provided, the connecting seat 9 is provided with a plurality of circumferentially and uniformly arranged mounting holes 91, the mounting seat 1 is fixedly mounted on the connecting seat 9, and an annular boss 44 penetrating through the connecting seat 9 and in sliding fit with the connecting seat 9 is arranged in the center of the end face of the driving piece 4. The high-precision rotary chuck can be conveniently arranged on the rotary main shaft through the connecting seat 9, and the operation is more convenient.
The examples should not be construed as limiting the invention, but any modifications based on the spirit of the invention should be within the scope of the invention.
Claims (6)
1. A high-precision rotary chuck comprises a mounting seat (1), a movable piece (2), two clamping plates (3) and a driving piece (4);
the method is characterized in that: the mounting seat (1) is provided with a first central hole (11) and a plurality of through holes (12) which are uniformly distributed along the circumferential direction of the first central hole (11), the front end surface of the mounting seat (1) is also provided with two mounting bosses (13) which are symmetrically distributed along the first central hole (11), the outer sides corresponding to the two mounting bosses (13) are provided with first linear guide rails (5) which extend along the front-back direction, and the inner sides corresponding to the two mounting bosses (13) are provided with second linear guide rails (6) which are perpendicular to the first linear guide rails (5);
the two clamping plates (3) are correspondingly arranged between the two mounting bosses (13) and are in sliding fit with the second linear guide rail (6), the outer side surface of each clamping plate (3) is an inclined surface (31), and the inclined surfaces (31) are provided with third linear guide rails (7) extending along the front-rear direction;
the movable piece (2) is sleeved outside the two mounting bosses (13), and the movable piece (2) is in sliding fit with the first linear guide rail (5) and the third linear guide rail (7);
the driving piece (4) is in driving connection with the movable piece (2) and can drive the movable piece (2) to slide back and forth along the first linear guide rail (5);
the driving piece (4) is arranged at the rear end of the mounting seat (1) and is connected with a power source for driving the driving piece to move forwards and backwards, a second center hole (41) corresponding to the first center hole (11) and a plurality of ejector rods (42) uniformly distributed along the circumferential direction of the second center hole (41) are arranged at the center of the driving piece (4), and the ejector rods (42) correspond to the through holes (12) and penetrate through the through holes (12) to prop up the movable piece (2);
the opposite sides of the 2 clamping plates (3) are provided with arc-shaped grooves (32) extending along the front-back direction.
2. The high precision spin chuck of claim 1, wherein: the front end of the clamping plate (3) is also provided with a clamping block (8).
3. The high precision spin chuck of claim 1, wherein: the section of the mounting seat (1) along the front-back direction is circular, a first annular baffle (14) arranged along the outer edge of the mounting seat (1) is arranged at the front end of the mounting seat, and the outer wall of the movable piece (2) is attached to the inner wall of the first annular baffle (14).
4. A high precision spin chuck as claimed in claim 3, wherein: the rear end of the mounting seat (1) is provided with a second annular baffle plate (15) arranged along the outer edge of the mounting seat, and the outer wall of the driving piece (4) is attached to the inner wall of the second annular baffle plate (15).
5. The high precision spin chuck of claim 4, wherein: the inner wall of the second annular baffle plate (15) is provided with a plurality of limit bosses (16) which are uniformly distributed in the circumferential direction, and the outer wall of the driving piece (4) is provided with limit grooves (43) which are matched with the limit bosses (16).
6. The high precision spin chuck of claim 5, wherein: still be equipped with connecting seat (9), connecting seat (9) are equipped with a plurality of circumference evenly arranged's mounting hole (91), mount pad (1) fixed mounting is on connecting seat (9), driving piece (4) terminal surface center is equipped with and passes connecting seat (9) and slide complex annular boss (44) with connecting seat (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710442434.0A CN107214549B (en) | 2017-06-13 | 2017-06-13 | High-precision rotary chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710442434.0A CN107214549B (en) | 2017-06-13 | 2017-06-13 | High-precision rotary chuck |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107214549A CN107214549A (en) | 2017-09-29 |
| CN107214549B true CN107214549B (en) | 2023-05-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710442434.0A Active CN107214549B (en) | 2017-06-13 | 2017-06-13 | High-precision rotary chuck |
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| CN (1) | CN107214549B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108818342A (en) * | 2018-06-27 | 2018-11-16 | 麻城市中达精密机械有限公司 | A kind of fixture |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2513843A (en) * | 2013-04-29 | 2014-11-12 | Univ Sheffield | Mill turn machine |
| CN103706943B (en) * | 2013-11-27 | 2016-02-10 | 江苏锐成机械有限公司 | Friction-welding machine disk spring type wedge shape hydraulic chuck |
| CN204248708U (en) * | 2014-11-08 | 2015-04-08 | 昆明鼎承科技有限公司 | A kind of portable chuck device |
| CN204321644U (en) * | 2014-12-11 | 2015-05-13 | 胡文正 | A kind of elasticity frock claw |
| CN204913312U (en) * | 2015-06-29 | 2015-12-30 | 宝塔实业股份有限公司 | Novel numerical control lathe integrated positioning elasticity anchor clamps device |
| CN204975993U (en) * | 2015-09-08 | 2016-01-20 | 昆山义成工具有限公司 | Turnning and milling all -in -one |
| CN205201144U (en) * | 2015-12-29 | 2016-05-04 | 徐斌 | Collet axial positioning device |
| CN207139376U (en) * | 2017-06-13 | 2018-03-27 | 嘉兴川页奇精密自动化机电有限公司 | High-precision rotary chuck |
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- 2017-06-13 CN CN201710442434.0A patent/CN107214549B/en active Active
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| CN107214549A (en) | 2017-09-29 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20210204 Address after: 314000 423-W, R & D building, Shanghai Jiaotong University (Jiaxing) science and Technology Park, 321, Xiuzhou Road, Jiaxing, Zhejiang. Applicant after: Jiaxing North Yazaki robot Co.,Ltd. Address before: 314000 Xin Nong Road, Xiuzhou District, Jiaxing, Zhejiang Province, No. 508 Applicant before: JIAXING CLG PRECISION AUTOMATION MACHINE WIRING Co.,Ltd. |
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