CN112894616A - Automatic clamping and positioning device for take-up crank - Google Patents
Automatic clamping and positioning device for take-up crank Download PDFInfo
- Publication number
- CN112894616A CN112894616A CN202011403716.8A CN202011403716A CN112894616A CN 112894616 A CN112894616 A CN 112894616A CN 202011403716 A CN202011403716 A CN 202011403716A CN 112894616 A CN112894616 A CN 112894616A
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- Prior art keywords
- clamping
- shaft end
- clamp
- clamping jaw
- workpiece
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- 210000000078 claw Anatomy 0.000 claims abstract description 27
- 238000000034 method Methods 0.000 description 5
- 238000009713 electroplating Methods 0.000 description 4
- 238000003754 machining Methods 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention discloses an automatic clamping and positioning device for a take-up crank, which comprises a clamp main body and a clamping claw, wherein the clamping claw is of a wire cutter structure and is arranged on the outer side of the end part of the clamp main body; the clamp is characterized in that a workpiece is arranged in the middle of the clamp body, a short shaft end is arranged on one side, close to the clamping jaw, of the workpiece, the opening side of the clamping jaw is clamped with the two outer sides of the short shaft end, and an adjusting cylinder for supporting the clamping jaw to clamp the short shaft end is arranged on one side, far away from the clamp body, of the clamp body. Has the advantages that: according to the invention, the outer side of the clamp main body is provided with the ejection column which is coincident with the axis of the grinding machine main shaft, the outer side of the ejection column is provided with the clamping claw which is used for locking the short shaft end outside the workpiece, and the short shaft end is subjected to auxiliary positioning through the clamping claw, so that the positioning difficulty of the short shaft end is reduced, the labor capacity of workers is reduced, the processing efficiency is improved, and the practicability is strong.
Description
Technical Field
The invention relates to the field of workpiece processing equipment, in particular to an automatic clamping and positioning device for a take-up crank.
Background
In the sewing machine industry, the thread take-up lever component has large usage amount, the thread take-up crank small component needs to be electroplated with hard chrome because the wear resistance of the thread take-up crank small component is ensured, the thread take-up crank small component needs to be finely processed and ground after being electroplated, in order to ensure the uniformity of the electroplated layer, each single product needs to be round, the processing efficiency is very low, the production period is long, and the method becomes an important ring for restricting the productivity, because the thickness of the finished product electroplated layer is ensured to be 0.03 mm-0.05 mm, grinding the outer diameter size to be 0.2mm smaller than the size of the finished product before electroplating, then taking out the electroplating, electroplating to be 0.2mm larger than the size of the finished product, because the thickness of the plating layer is very thick, the problems of flash and uneven plating layer on the periphery of the shaft neck head can occur, in the fine machining process, in order to ensure the completeness of the finished product electroplated layer, because the two sides of the long shaft end are provided with the central holes, the thimble is directly arranged, the runout of the product can be ensured, the short shaft end is mainly required, each product needs to be aligned by a table, and the runout is within the range of 0.1 mm. The requirement on the technical skill of an operator is high, the operator can be aligned quickly after the operator is technically good, and the operator can be aligned repeatedly after the operator is technically poor, so that the efficiency is low.
Disclosure of Invention
The invention aims to solve the problems and provide an automatic clamping and positioning device for a take-up crank, which reduces the positioning difficulty of a short shaft end, reduces the labor capacity of workers, improves the processing efficiency and has strong practicability, and the details are explained in the following.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention provides an automatic clamping and positioning device for a take-up crank, which comprises a clamp main body and a clamping claw, wherein the clamping claw is of a wire cutter structure and is arranged on the outer side of the end part of the clamp main body;
the clamp is characterized in that a workpiece is arranged in the middle of the clamp body, a short shaft end is arranged on one side, close to the clamping jaw, of the workpiece, the opening side of the clamping jaw is clamped with the two outer sides of the short shaft end, and an adjusting cylinder for supporting the clamping jaw to clamp the short shaft end is arranged on one side, far away from the clamp body, of the clamp body.
By adopting the automatic clamping and positioning device for the take-up crank, when a workpiece needs to be loaded into the clamp main body in the using process, the clamping jaw is supported and positioned by the ejection column of the adjusting cylinder, the central line of the grinding machine main shaft is ensured to be crossed at the central position of the opening side of the clamping jaw, so that the center of the short shaft end of the workpiece is ensured to be coincided with the rotation center of the grinding machine main shaft, then an operator controls the ejection column at the telescopic end of the adjusting cylinder to extend outwards, so that the ejection column moves forwards to pull the outer side adjusting rod to move, the opening of the clamping jaw is pulled to be closed by the adjusting rod, meanwhile, the ejection column drives the clamping jaw to move towards the direction close to the workpiece through the adjusting rod, so that the opening at the end part of the clamping jaw is clamped into two sides outside the short shaft end, and the short shaft, and then, a long shaft end at the back of the workpiece is locked and clamped through a pneumatic clamping device at the rear of the clamp main body, and then the adjusting cylinder is controlled to contract to pull the adjusting rod to support the opening side of the clamping claw to open, so that the short shaft end is loosened, the return action of the clamping claw is realized, and the clamping process of the workpiece to the clamp main body is completed.
Preferably, a long shaft end is arranged on one side of the workpiece, which is far away from the short shaft end, the long shaft end transversely penetrates through the clamp main body, and one end of the long shaft end, which is far away from the workpiece, extends to the rear of the clamp main body.
Preferably, a pneumatic clamping device is arranged on one side of the back of the clamp main body, the long shaft end extends into the inner side of the pneumatic clamping device, and the long shaft end is tightly clamped with the pneumatic clamping device.
Preferably, one end of the adjusting cylinder, which is close to the clamping jaw, is provided with a cylinder top post, and the inner side of the clamping jaw is provided with two groups of adjusting rods which are hinged with the clamping jaw.
Preferably, the number of the two groups of adjusting rods is two, the two groups of adjusting rods are symmetrically arranged on the inner side of the clamping claw, and the end parts of the inner sides of the two groups of adjusting rods are respectively hinged to the outer side of the cylinder top post and the outer side of the adjusting cylinder.
Preferably, the thickness of the front end of the clamping claw is smaller than the length of the short shaft end, and two groups of arc-shaped base plates attached to the outer circumference side of the short shaft end are symmetrically arranged on two sides of the opening of the front end of the clamping claw.
Has the advantages that: according to the invention, the outer side of the clamp main body is provided with the ejection column which is coincident with the axis of the grinding machine main shaft, the outer side of the ejection column is provided with the clamping claw which is used for locking the short shaft end outside the workpiece, and the short shaft end is subjected to auxiliary positioning through the clamping claw, so that the positioning difficulty of the short shaft end is reduced, the labor capacity of workers is reduced, the processing efficiency is improved, and the practicability is strong.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic perspective view of the present invention;
fig. 2 is a front view structural view of the workpiece of the present invention.
The reference numerals are explained below:
1. a clamp body; 2. a workpiece; 3. an adjusting cylinder; 4. a top pillar; 5. a clamping jaw; 6. a stub shaft end; 7. the long shaft end.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
Referring to fig. 1-2, the invention provides an automatic clamping and positioning device for a take-up crank, which comprises a clamp main body 1 and a clamping jaw 5, wherein the clamp main body 1 is a grinding machine clamp, the clamping jaw 5 is a wire cutter structure, and the clamping jaw 5 is arranged on the outer side of the end part of the clamp main body 1;
the middle part of the clamp main body 1 is provided with a workpiece 2, one side of the workpiece 2, which is close to the clamping claw 5, is provided with a short shaft end 6, the opening side of the clamping claw 5 is clamped with the two outer sides of the short shaft end 6, and one side of the clamping claw 5, which is far away from the clamp main body 1, is provided with an adjusting cylinder 3 for supporting the clamping short shaft end 6 of the clamping claw 5.
As an optional implementation manner, a long shaft end 7 is arranged on one side of the workpiece 2, which is far away from the short shaft end 6, the long shaft end 7 transversely penetrates through the fixture main body 1, one end of the long shaft end 7, which is far away from the workpiece 2, extends to the rear of the fixture main body 1, a pneumatic clamping device is arranged on one side of the back of the fixture main body 1, the long shaft end 7 extends into the inner side of the pneumatic clamping device, and the long shaft end 7 is clamped with the pneumatic clamping device, which is the prior art in the field and is not described herein;
an air cylinder top post 4 is arranged at one end, close to a clamping jaw 5, of an adjusting air cylinder 3, two groups of adjusting rods are arranged on the inner side of the clamping jaw 5 and hinged to the clamping jaw 5, the number of the two groups of adjusting rods is two, the two groups of adjusting rods are symmetrically arranged on the inner side of the clamping jaw 5, the inner side end portions of the two groups of adjusting rods are hinged to the outer side of the air cylinder top post 4 and the outer side of the adjusting air cylinder 3 respectively, so that when the supporting top post 4 at the telescopic end of the air cylinder extends outwards, the adjusting rods are driven by the top post 4 to move and rotate towards the direction close to a workpiece 2, the two groups of rotating arms of the clamping jaw 5 are pulled by the adjusting rods to rotate towards the direction close to each other, the width of the opening side of;
the thickness of the front end of the clamping claw 5 is smaller than the length of the stub shaft end 6, so that the clamping claw 5 can conveniently clamp the stub shaft end 6 to avoid the flash caused by electroplating of the stub shaft end 6, and two groups of arc-shaped base plates attached to the outer circumferential side of the stub shaft end 6 are symmetrically arranged on two sides of the front end opening of the clamping claw 5, so that the clamping stability of the clamping claw 5 to the stub shaft end 6 is improved.
By adopting the structure, when a workpiece 2 needs to be loaded into the clamp main body 1 in the using process, the clamping jaw 5 is supported and positioned by the top column 4 of the adjusting cylinder 3, the central position of the opening side of the clamping jaw 5 is ensured to cross the central line of the grinding machine main shaft, so as to ensure that the center of the short shaft end 6 of the workpiece 2 is coincided with the rotation center of the grinding machine main shaft, then an operator controls the telescopic end top column 4 of the adjusting cylinder 3 to extend outwards, so that the top column 4 moves forwards to pull the outer side adjusting rod to move, so that the opening of the clamping jaw 5 is drawn and closed by the adjusting rod, meanwhile, the top column 4 drives the clamping jaw 5 to move towards the direction close to the workpiece 2 by the adjusting rod, so that the opening at the end part of the clamping jaw 5 is clamped into the two outer sides of the short shaft end 6, so as to position and lock the short shaft end 6 by the clamping jaw 5, then, the ejection column 4 of the adjusting cylinder 3 is controlled to contract to pull the opening side of the adjusting rod supporting clamping jaw 5 to open, so that the short shaft end 6 is loosened, the returning action of the clamping jaw 5 is realized, and the clamping process of the workpiece 2 to the clamp body 1 is completed;
through setting up the fore-set 4 with the coincidence of grinding machine main shaft axis in the anchor clamps main part 1 outside, set up the clamping jaw 5 of the outside stub axle head 6 of lock solid work piece 2 in the fore-set 4 outside, carry out assistance-localization real-time to stub axle head 6 through clamping jaw 5, reduce stub axle head 6 and fix a position the degree of difficulty, reduce workman's amount of labour, improve machining efficiency, the practicality is strong.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (6)
1. The utility model provides an automatic centre gripping positioner of take-up crank which characterized in that: the clamp comprises a clamp main body (1) and a clamping claw (5), wherein the clamping claw (5) is of a wire cutter structure, and the clamping claw (5) is arranged on the outer side of the end part of the clamp main body (1);
the clamp is characterized in that a workpiece (2) is arranged in the middle of the clamp body (1), the workpiece (2) is close to one side of the clamping jaw (5) and is provided with a stub shaft end (6), the opening side of the clamping jaw (5) is connected with the two outer sides of the stub shaft end (6) in a clamped mode, the clamping jaw (5) is far away from one side of the clamp body (1) and is provided with an adjusting cylinder (3) for supporting the clamping jaw (5) to clamp the stub shaft end (6).
2. The automatic clamping and positioning device for the take-up crank as claimed in claim 1, wherein: one side, far away from the short shaft end (6), of the workpiece (2) is provided with a long shaft end (7), the long shaft end (7) transversely penetrates through the clamp main body (1), and one end, far away from the workpiece (2), of the long shaft end (7) extends to the rear of the clamp main body (1).
3. The automatic clamping and positioning device for the take-up crank as claimed in claim 2, wherein: the pneumatic clamping device is arranged on one side of the back of the clamp main body (1), the long shaft end (7) extends into the inner side of the pneumatic clamping device, and the long shaft end (7) is clamped with the pneumatic clamping device.
4. The automatic clamping and positioning device for the take-up crank as claimed in claim 1, wherein: the adjusting cylinder (3) is close to one end of the clamping jaw (5) and is provided with a cylinder jack-post (4), and two groups of adjusting rods are arranged on the inner side of the clamping jaw (5) and are hinged to the clamping jaw (5).
5. The automatic clamping and positioning device for the take-up crank as claimed in claim 1, wherein: the number of the two groups of adjusting rods is two, the two groups of adjusting rods are symmetrically arranged on the inner side of the clamping claw (5), and the end parts of the inner sides of the two groups of adjusting rods are respectively hinged to the outer side of the cylinder top post (4) and the outer side of the adjusting cylinder (3).
6. The automatic clamping and positioning device for the take-up crank as claimed in claim 1, wherein: the thickness of the front end of the clamping claw (5) is smaller than the length of the stub shaft end (6), and two groups of arc-shaped base plates attached to the outer circumference side of the stub shaft end (6) are symmetrically arranged on two sides of the front end opening of the clamping claw (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011403716.8A CN112894616A (en) | 2020-12-04 | 2020-12-04 | Automatic clamping and positioning device for take-up crank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011403716.8A CN112894616A (en) | 2020-12-04 | 2020-12-04 | Automatic clamping and positioning device for take-up crank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112894616A true CN112894616A (en) | 2021-06-04 |
Family
ID=76111392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011403716.8A Pending CN112894616A (en) | 2020-12-04 | 2020-12-04 | Automatic clamping and positioning device for take-up crank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112894616A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0355256A2 (en) * | 1988-08-19 | 1990-02-28 | Günter Horst Röhm | Powered chuck for clamping work pieces excentrically |
| EP0501500A2 (en) * | 1991-03-01 | 1992-09-02 | Kiwa Giken Kabushiki Kaisha | Numerically controlled machine tool and machining method thereof |
| MXPA05013534A (en) * | 2005-09-08 | 2007-03-07 | Advanced Tooling Systems Inc | Fixture for machine tools. |
| CN103273366A (en) * | 2013-05-21 | 2013-09-04 | 宁波海良精机有限公司 | Full-automatic numerically-controlled machine tool for shafts |
| CN106141786A (en) * | 2016-08-18 | 2016-11-23 | 重庆科菲精密机械有限公司 | Automatization's handling equipment of Digit Control Machine Tool |
| CN210499542U (en) * | 2019-07-03 | 2020-05-12 | 昆山岱屹精密机械有限公司 | Crank of bent axle, balancing piece processing apparatus that polishes |
| CN210633517U (en) * | 2019-09-03 | 2020-05-29 | 中际山河科技有限责任公司 | Self-locking clamp |
| CN211804900U (en) * | 2019-12-13 | 2020-10-30 | 宁波三韩合金材料有限公司 | Multi-station self-positioning floating clamping and workpiece self-overturning intelligent tool clamp system |
| CN215825102U (en) * | 2020-12-04 | 2022-02-15 | 苏州洲洋精密机械科技有限公司 | Automatic clamping and positioning device for take-up crank |
-
2020
- 2020-12-04 CN CN202011403716.8A patent/CN112894616A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0355256A2 (en) * | 1988-08-19 | 1990-02-28 | Günter Horst Röhm | Powered chuck for clamping work pieces excentrically |
| EP0501500A2 (en) * | 1991-03-01 | 1992-09-02 | Kiwa Giken Kabushiki Kaisha | Numerically controlled machine tool and machining method thereof |
| MXPA05013534A (en) * | 2005-09-08 | 2007-03-07 | Advanced Tooling Systems Inc | Fixture for machine tools. |
| CN103273366A (en) * | 2013-05-21 | 2013-09-04 | 宁波海良精机有限公司 | Full-automatic numerically-controlled machine tool for shafts |
| CN106141786A (en) * | 2016-08-18 | 2016-11-23 | 重庆科菲精密机械有限公司 | Automatization's handling equipment of Digit Control Machine Tool |
| CN210499542U (en) * | 2019-07-03 | 2020-05-12 | 昆山岱屹精密机械有限公司 | Crank of bent axle, balancing piece processing apparatus that polishes |
| CN210633517U (en) * | 2019-09-03 | 2020-05-29 | 中际山河科技有限责任公司 | Self-locking clamp |
| CN211804900U (en) * | 2019-12-13 | 2020-10-30 | 宁波三韩合金材料有限公司 | Multi-station self-positioning floating clamping and workpiece self-overturning intelligent tool clamp system |
| CN215825102U (en) * | 2020-12-04 | 2022-02-15 | 苏州洲洋精密机械科技有限公司 | Automatic clamping and positioning device for take-up crank |
Non-Patent Citations (1)
| Title |
|---|
| 加藤一郎: "机械手图册", vol. 1, 30 September 1979, 上海科学技术出版社, pages: 92 - 102 * |
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