CN103042066A - Eccentric spring chuck - Google Patents
Eccentric spring chuck Download PDFInfo
- Publication number
- CN103042066A CN103042066A CN2012105516440A CN201210551644A CN103042066A CN 103042066 A CN103042066 A CN 103042066A CN 2012105516440 A CN2012105516440 A CN 2012105516440A CN 201210551644 A CN201210551644 A CN 201210551644A CN 103042066 A CN103042066 A CN 103042066A
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- CN
- China
- Prior art keywords
- chuck
- preshoot
- collet
- rod
- eccentric
- 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.)
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Abstract
The invention discloses an eccentric spring chuck which comprises a preshoot rod and a lining bar which are fixed into a whole body. A spring chuck is sleeved outside the preshoot rod; the outer surface of the spring chuck adopts a conical surface; the spring chuck and the lining bar are sleeved in a preshoot chuck; a conical bore matched with the conical surface of the spring chuck is formed in an inner hole of the front section of the preshoot chuck; the center line of the excircle surface of the rear section of the preshoot chuck is deviated from the center line of an inner hole of the rear section of the preshoot chuck; center lines of the inner holes of the front and rear sections of the preshoot chuck are coincident with center lines of the spring chuck and the preshoot rod; an eccentric tile is formed outside the excircle of the rear section of the preshoot chuck; and a locking nut penetrates the preshoot rod and then fixes the spring chuck to the preshoot chuck. The eccentric spring chuck has the advantages that when the preshoot rod is replaced, the only thing to do is to replace the spring chuck matched with the preshoot rod, and the preshoot chuck is not required to be replaced, so that the concentricity of the preshoot rod and a rear die cavity is not required to be adjusted again, and the debugging efficiency and stability are improved.
Description
Technical field
The present invention relates to a kind of fitting cold extrusion shaping machine anchor clamps, 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 such as needs, just must take out whole collet body, when reloading, since can not be just the same with position before, so the center of pediment stick must be adjusted once again; So existing collet is inefficiency in reality is used, and concentricity, poor stability.
Summary of the invention
Goal of the invention: the objective of the invention 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 present invention 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 central lines of the center line of preshoot chuck leading portion endoporus, the center line of back segment endoporus and 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 invention 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 present invention 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 present invention 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 invention.
The specific embodiment:
Below in conjunction with accompanying drawing the present invention is done further explanation.
As shown in Figure 1, a kind of eccentric collet of the present invention comprises the pediment stick 1 and the lining bar 6 that are fixed together, the pediment stick 1 outer collet 3 that is arranged with; 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 the 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 central lines of the center line of preshoot chuck 4 leading portion endoporus, the center line of back segment endoporus and collet 3, pediment stick 1; Preshoot chuck 4 back segment outer round surface are provided with eccentric watt 5 outward, and it is fixing with preshoot chuck 4 with collet 3 that locking nut 2 passes pediment stick 1, thus so that pediment stick 1 firm being clamped in the collet 3.
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, so that the taper seat of the collet body of collet 3 and preshoot chuck 4 conical bores closely cooperate, force pediment stick 1 self-centering being pressed abd fixed in the preshoot chuck 4 in collet 3.
Among the present invention, the taper seat that collet 3 cooperates with preshoot chuck 4 screws direction toward centroclinal along locking nut 2; Collet 3 cooperates with locking nut 2 and is the cooperation of inside and outside circular arc.The clamping of pediment stick 1 by the cooperating of the conical bore of the taper seat of collet 3 and preshoot chuck 4 front ends, and cooperate to come 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 the clamping is higher.
The above only is preferred embodiment of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (2)
1. eccentric collet, comprise the pediment stick (1) and the lining bar (6) that are fixed together, it is characterized in that: pediment stick (1) is outer to be arranged with collet (3), and collet (3) comprises 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 the 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 central lines of the center line of preshoot chuck (4) leading portion endoporus, the center line of back segment endoporus and collet (3), pediment stick (1); Preshoot chuck (4) back segment cylindrical is provided with eccentric watt (5) outward, and it is fixing with collet (3) and preshoot chuck (4) that locking nut (2) passes pediment stick (1).
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 |
|---|---|---|---|
| CN2012105516440A CN103042066A (en) | 2012-12-18 | 2012-12-18 | Eccentric spring chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105516440A CN103042066A (en) | 2012-12-18 | 2012-12-18 | Eccentric spring chuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103042066A true CN103042066A (en) | 2013-04-17 |
Family
ID=48055060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105516440A Pending CN103042066A (en) | 2012-12-18 | 2012-12-18 | Eccentric spring chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103042066A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104550525A (en) * | 2015-01-20 | 2015-04-29 | 优德精密工业（昆山）股份有限公司 | Resetting chuck of high-precision die and processing method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001137970A (en) * | 1999-11-05 | 2001-05-22 | Amada Co Ltd | Punch die |
| JP2003191226A (en) * | 2001-12-27 | 2003-07-08 | Misumi Tokushu:Kk | Splicing equipment connecting core drill to rotation driving part of drilling machine |
| CN201702601U (en) * | 2010-01-26 | 2011-01-12 | 福建省飞驰机械工业有限公司 | Adjustable eccentric fixture for engine lathe |
| CN202427787U (en) * | 2012-01-09 | 2012-09-12 | 无锡南天安全设施有限公司 | Clamping mechanism for thin-wall pipe fittings |
| CN202984327U (en) * | 2012-12-18 | 2013-06-12 | 南京天尔科技有限责任公司 | Eccentric spring collet |
-
2012
- 2012-12-18 CN CN2012105516440A patent/CN103042066A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001137970A (en) * | 1999-11-05 | 2001-05-22 | Amada Co Ltd | Punch die |
| JP2003191226A (en) * | 2001-12-27 | 2003-07-08 | Misumi Tokushu:Kk | Splicing equipment connecting core drill to rotation driving part of drilling machine |
| CN201702601U (en) * | 2010-01-26 | 2011-01-12 | 福建省飞驰机械工业有限公司 | Adjustable eccentric fixture for engine lathe |
| CN202427787U (en) * | 2012-01-09 | 2012-09-12 | 无锡南天安全设施有限公司 | Clamping mechanism for thin-wall pipe fittings |
| CN202984327U (en) * | 2012-12-18 | 2013-06-12 | 南京天尔科技有限责任公司 | Eccentric spring collet |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104550525A (en) * | 2015-01-20 | 2015-04-29 | 优德精密工业（昆山）股份有限公司 | Resetting chuck of high-precision die and processing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| AD01 | Patent right deemed abandoned |
Effective date of abandoning: 20160615 |
|
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |