CN202984327U - Eccentric spring collet - Google Patents
Eccentric spring collet Download PDFInfo
- Publication number
- CN202984327U CN202984327U CN 201220703122 CN201220703122U CN202984327U CN 202984327 U CN202984327 U CN 202984327U CN 201220703122 CN201220703122 CN 201220703122 CN 201220703122 U CN201220703122 U CN 201220703122U CN 202984327 U CN202984327 U CN 202984327U
- Authority
- CN
- China
- Prior art keywords
- collet
- chuck
- collet body
- preshoot
- front stamping
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses an eccentric spring collet. The spring collet comprises a front stamping rod and a lining bar, wherein a spring collet body is sleeved outside the front stamping rod, the outer surface of the spring collet body is a conical surface, the spring collet and the lining bar are sleeved in a front stamping collet body, an inner hole in the front segment of the front stamping collet is provided with a conical hole matched with the conical surface of the spring collet body, the central line of an excircle surface of the rear segment of the front stamping collet body is derived from the central line of an inner hole in the rear segment of the front stamping collet body, the central lines of the inner holes in the front and rear segments of the front stamping collet body are overlapped with the central line of the spring collet body and the central line of the front stamping rod, an eccentric bush is arranged outside of an excircle at the rear segment of the front stamping collet body, and a locking nut penetrates through the front stamping rod to fix the spring collet body and the front stamping collet body. By adopting the eccentric spring collet disclosed by the utility model, only the spring collet body matched with the front stamping rod needs to be replaced, the front stamping collet body does not need to be replaced, and therefore, the concentricity of the front stamping rod and a rear mold cavity does not need to be readjusted again, and the conditioning efficiency and the stability are improved.
Description
Technical field
The utility model relates to a kind of fitting cold extrusion shaping machine fixture, is a kind of eccentric collet specifically.
Background technology
In fitting cold extrusion shaping machine, collet can improve the efficient of cold-forming machine die debugging and the precision of cold-forming machine processing parts.The principle of cold-forming machine processing parts is: pediment stick squeezes into rear die cavity to the blank material and makes forming parts, so the concentricity requirement of pediment stick and rear die cavity is high; When pediment stick squeezed into the blank material rear die cavity and makes forming parts, pediment stick was stressed large, so high to the stability requirement of pediment stick position relationship.
The chuck body structure of traditional collet is after concentricity is adjusted, change pediment stick or lining bar as needs, just must take out whole collet body, when reloading, due to can not be just the same with position before, therefore the center of pediment stick must be adjusted once again; So existing collet is inefficiency in reality is used, and concentricity, poor stability.
The utility model content
The utility model purpose: the purpose of this utility model is to overcome existing collet when changing pediment stick, lining bar, need to readjust the center, and then cause the problem of inefficiency, thereby a kind of novel eccentric collet is provided.
Technical scheme: in order to address the above problem, the utility model has adopted following technical scheme:
A kind of eccentric collet comprises the pediment stick and the lining bar that are fixed together, and pediment stick is arranged with collet outward, and spring clip comprises collet body and chuck end, and the outer surface of the collet body of collet is taper seat; Collet, lining bar are set in the preshoot chuck, and the leading portion endoporus of preshoot chuck is provided with the conical bore adaptive with the taper seat of collet; The center line of preshoot chuck back segment outer round surface and the center line of back segment endoporus depart from; The center line of preshoot chuck leading portion endoporus, the center line of back segment endoporus overlap with the center line of collet, pediment stick; Preshoot chuck back segment cylindrical is provided with eccentric watt outward, and locking nut passes pediment stick collet and preshoot chuck are fixed.
Wherein, the chuck end outer surface of described collet is provided with arc surface, and the locking nut endoporus is provided with and the adaptive concave panel of preshoot chuck arc surface.
The position relationship of pediment stick of the present utility model and rear die cavity is to control the center of pediment stick by eccentric watt with the rotation of preshoot chuck, thereby realize the adjusting of pediment stick and rear die cavity concentricity.
Beneficial effect: 1, the utility model is when changing pediment stick, only need to change the collet supporting with pediment stick, the preshoot chuck need not changed, and like this concentricity of pediment stick and rear die cavity just need not again to readjust, improve efficient and the stability of debugging, saved cost.
2, improve the clamping precision of pediment stick, make position relationship, positional precision and the stability of pediment stick higher.
3, the utility model is applied in fitting cold extrusion shaping machine, has improved greatly the efficient of cold-forming machine die debugging and the precision of cold-forming machine processing parts.
Description of drawings
Fig. 1 is structural representation of the present utility model.
The specific embodiment:
Below in conjunction with accompanying drawing, the utility model is done further and explained.
As shown in Figure 1, a kind of eccentric collet of the present utility model comprises the pediment stick 1 and the lining bar 6 that are fixed together, the outer collet 3 that is arranged with of pediment stick 1; Described collet 3 comprises chuck end and collet body, and the outer surface of collet body is taper seat; The collet body of collet 3, lining bar 6 are set in preshoot chuck 4, and the front end endoporus of preshoot chuck 4 is provided with the conical bore adaptive with the taper seat of the collet body of collet 3.The center line of preshoot chuck 4 back segment outer round surface and the center line of back segment endoporus depart from; The center line of preshoot chuck 4 leading portion endoporus, the center line of back segment endoporus overlap with the center line of collet 3, pediment stick 1; Preshoot chuck 4 back segment outer round surface are provided with eccentric watt 5 outward, and locking nut 2 passes pediment stick 1, and collet 3 is fixing with preshoot chuck 4, thereby makes firm being clamped in collet 3 of pediment stick 1.
Wherein, the outer surface of the chuck end of described collet 3 is provided with arc surface, and locking nut 2 endoporus are provided with the concave panel adaptive with preshoot chuck 4 chuck end arc surfaces.In a single day locking nut 2 screws, under the cooperation of the chuck end of collet 3 and locking nut bore circular arc face, make taper seat and preshoot chuck 4 conical bores of the collet body of collet 3 closely cooperate, force pediment stick 1 self-centering being pressed abd fixed in preshoot chuck 4 in collet 3.
Collet 3 closely cooperates with pediment stick 1, is matched in clearance between lining bar 6 and preshoot chuck 4.By rotating eccentric watt 5 and preshoot chuck 4, thereby adjust the height of preshoot chuck 4 front end inner circle taper holes and the position of left and right, and then adjust the position of its center line, make the position of center line of preshoot chuck 4 front end inner circle taper holes consistent with the position of center line of rear die cavity, the position of center line that is arranged on pediment stick 1 in preshoot chuck 4, lining bar 6 is just consistent with the position of center line of rear die cavity.
In the utility model, the taper seat that collet 3 coordinates with preshoot chuck 4 screws direction toward centroclinal along locking nut 2; Collet 3 coordinates with locking nut 2 and is the cooperation of inside and outside circular arc.The clamping of pediment stick 1 by the coordinating of the conical bore of the taper seat of collet 3 and preshoot chuck 4 front ends, and coordinate the endoporus to collet 3 to compress and self-centering with the circular arc of locking nut 2, this structure can guarantee the position of pediment stick 1 and dismantle uniformity with the front position; When changing pediment stick 1 and lining bar 6, only need locking nut 2 is screwed off, just can directly take out pediment stick 1 and lining bar 6 from front end, avoided dismounting preshoot chuck 4, avoided the center of pediment stick 1 is adjusted again.Adopt this collet 3 clamping pediment sticks 1 that tapering is arranged, can be so that the position relationship of pediment stick 1 to be more firm, pediment stick 1 positional precision after clamping is higher.
The above is only preferred embodiment of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (2)
1. eccentric collet, comprise the pediment stick (1) and the lining bar (6) that are fixed together, it is characterized in that: the outer collet (3) that is arranged with of pediment stick (1), collet (3) comprise collet body and chuck end, and the outer surface of the collet body of collet (3) is taper seat; Collet (3), lining bar (6) are set in preshoot chuck (4), and the leading portion endoporus of preshoot chuck (4) is provided with the conical bore adaptive with the taper seat of collet (3); The center line of preshoot chuck (4) back segment outer round surface and the center line of back segment endoporus depart from; The center line of preshoot chuck (4) leading portion endoporus, the center line of back segment endoporus overlap with the center line of collet (3), pediment stick (1); Preshoot chuck (4) back segment cylindrical is provided with eccentric watt (5) outward, and locking nut (2) passes pediment stick (1), and collet (3) and preshoot chuck (4) is fixing.
2. a kind of eccentric collet according to claim 1, it is characterized in that: described collet (3) chuck end outer surface is provided with arc surface, and locking nut (2) endoporus is provided with and the adaptive concave panel of preshoot chuck (4) arc surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220703122 CN202984327U (en) | 2012-12-18 | 2012-12-18 | Eccentric spring collet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220703122 CN202984327U (en) | 2012-12-18 | 2012-12-18 | Eccentric spring collet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202984327U true CN202984327U (en) | 2013-06-12 |
Family
ID=48555550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220703122 Expired - Fee Related CN202984327U (en) | 2012-12-18 | 2012-12-18 | Eccentric spring collet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202984327U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103042066A (en) * | 2012-12-18 | 2013-04-17 | 南京天尔科技有限责任公司 | Eccentric spring chuck |
| CN103722340A (en) * | 2013-11-27 | 2014-04-16 | 江苏锐成机械有限公司 | Anti-slip clamping device for oilless bearing sleeve of friction welding machine |
-
2012
- 2012-12-18 CN CN 201220703122 patent/CN202984327U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103042066A (en) * | 2012-12-18 | 2013-04-17 | 南京天尔科技有限责任公司 | Eccentric spring chuck |
| CN103722340A (en) * | 2013-11-27 | 2014-04-16 | 江苏锐成机械有限公司 | Anti-slip clamping device for oilless bearing sleeve of friction welding machine |
| CN103722340B (en) * | 2013-11-27 | 2016-05-18 | 江苏锐成机械有限公司 | The anti-skidding clamping device of friction-welding machine oilless bearing sleeve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20151218 |
|
| EXPY | Termination of patent right or utility model |