CN102581123A - Die punching device - Google Patents
Die punching device Download PDFInfo
- Publication number
- CN102581123A CN102581123A CN2011104630923A CN201110463092A CN102581123A CN 102581123 A CN102581123 A CN 102581123A CN 2011104630923 A CN2011104630923 A CN 2011104630923A CN 201110463092 A CN201110463092 A CN 201110463092A CN 102581123 A CN102581123 A CN 102581123A
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- CN
- China
- Prior art keywords
- die sleeve
- die
- drift
- elastic force
- punching head
- 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.)
- Pending
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Abstract
The invention relates to a die punching device which comprises a punching head and a die sleeve, wherein the punching head is axially and movably arranged in the die sleeve on which a screw hole connected with an air path is arranged, an air channel is arranged on the side wall between the inner end of the punching head and the bottom of an inner cavity of the die sleeve and communicated with the screw hole, compressed air supplied to the punching head as an elastic force is introduced to the air channel, the inner end of the punching head is provided with a step to form a piston, and a sealing fit is formed between the upper end surface of the step and the upper plane of the inner cavity of the die sleeve. The die punching device has the beneficial effects that because the elastic force supplied to the punching head is the compressed air, and after being set, the pressure of the compressed air always keeps stable and can be regulated according to the formation needs of different workpieces, and therefore the die punching device has the advantages of being stable in elastic force, good in adaptability and long in service life.
Description
Technical field
The present invention relates to a kind of mould, relate in particular to a kind of preformed die set.
Background technology
As shown in Figure 1, the die set of prior art generally comprises drift, die sleeve, and drift places die sleeve axially and movably; Between the intracavity bottom of the inner end of drift and die sleeve, be provided with the compression spring, the compression spring makes drift obtain elastic force, and the size of this elastic force and stability directly influence the Forming Quality of workpiece; Because of punch die in the high speed frequent movement; The compression spring can decay even damage because of elastic force after reaching fatigue limit, causes unstable product quality, and serious also waster can occur.
Summary of the invention
Technical problem to be solved by this invention is the deficiency that overcomes prior art, provides that a kind of elastic force is stable, the die set of long service life.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: a kind of die set; Comprise drift, die sleeve, drift places die sleeve axially and movably, on die sleeve, is provided with the screw that connects gas circuit; On the inner end of drift and the sidewall between the die sleeve intracavity bottom, being provided with air flue is communicated with screw; Access offers the Compressed Gas of drift elastic force, and the inner end of drift is provided with step and constitutes piston, constitutes between the upper surface of step and the die sleeve inner chamber upper plane to be sealed and matched.
Useful technique effect of the present invention is: owing to offer the elastic force of drift is Compressed Gas; The pressure of Compressed Gas is after setting; Remain stablely, and can regulate, thereby have that elastic force is stable, adaptability is good, the advantage of long service life according to the moulding needs of different workpieces.
Description of drawings
Fig. 1 is the prior art constructions sketch map;
Fig. 2 is a structural representation of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is further described:
As shown in Figure 2, a kind of die set comprises drift 1, die sleeve 2; Drift 1 places die sleeve 2 axially and movably; On die sleeve 2, be provided with the screw 3 that connects gas circuit, on the inner end of drift 1 and the sidewall between die sleeve 2 intracavity bottoms, be provided with air flue 4 and be communicated with screw 3, access offers the Compressed Gas of drift elastic force; The inner end of drift 1 is provided with step 5 and constitutes piston, constitutes between the upper surface 6 of step 5 and the die sleeve 2 inner chamber upper plane 7 to be sealed and matched.
Gap between described step cylindrical 8 and the die sleeve inner chamber is 0.02-0.03mm.
Gap between described drift cylindrical 9 and the die sleeve endoporus is 0.02-0.03mm.
Claims (3)
1. die set; Comprise drift, die sleeve, drift places die sleeve axially and movably, it is characterized in that: on die sleeve, be provided with the screw that connects gas circuit; On the inner end of drift and the sidewall between the die sleeve intracavity bottom, being provided with air flue is communicated with screw; Access offers the Compressed Gas of drift elastic force, and the inner end of drift is provided with step and constitutes piston, constitutes between the upper surface of step and the die sleeve inner chamber upper plane to be sealed and matched.
2. a kind of die set according to claim 1 is characterized in that: the gap between described step cylindrical and the die sleeve inner chamber is 0.02-0.03mm.
3. a kind of die set according to claim 1 and 2 is characterized in that: the gap between described drift cylindrical and the die sleeve endoporus is 0.02-0.03mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104630923A CN102581123A (en) | 2011-12-13 | 2011-12-13 | Die punching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104630923A CN102581123A (en) | 2011-12-13 | 2011-12-13 | Die punching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102581123A true CN102581123A (en) | 2012-07-18 |
Family
ID=46470668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104630923A Pending CN102581123A (en) | 2011-12-13 | 2011-12-13 | Die punching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102581123A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103624162A (en) * | 2013-12-05 | 2014-03-12 | 昆山市珍和模具五金机械有限公司 | Pneumatic demolding type constant-pressure cup punching mold |
| CN103658400A (en) * | 2013-12-05 | 2014-03-26 | 昆山市珍和模具五金机械有限公司 | Constant pressure type cup punching die |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1093649A (en) * | 1993-04-13 | 1994-10-19 | 张景顺 | The shock-dampening method of percussion tool and vibration absorption unit |
| JPH07246500A (en) * | 1994-03-09 | 1995-09-26 | Aioi Seiki Kk | Cushion cylinder device of press machine |
| JPH10305397A (en) * | 1997-05-12 | 1998-11-17 | Pascal Kk | Die cushion device |
| EP1089837B1 (en) * | 1998-06-23 | 2002-05-22 | Mate Precision Tooling Inc. | Tool holder with punching units |
| CA2390044A1 (en) * | 2001-07-02 | 2003-01-02 | Ishikawajima-Harima Heavy Industries Co., Ltd. | Die cushion apparatus |
| CN202387850U (en) * | 2011-12-13 | 2012-08-22 | 温州市长江标准件有限公司 | Die stamping device |
-
2011
- 2011-12-13 CN CN2011104630923A patent/CN102581123A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1093649A (en) * | 1993-04-13 | 1994-10-19 | 张景顺 | The shock-dampening method of percussion tool and vibration absorption unit |
| JPH07246500A (en) * | 1994-03-09 | 1995-09-26 | Aioi Seiki Kk | Cushion cylinder device of press machine |
| JPH10305397A (en) * | 1997-05-12 | 1998-11-17 | Pascal Kk | Die cushion device |
| EP1089837B1 (en) * | 1998-06-23 | 2002-05-22 | Mate Precision Tooling Inc. | Tool holder with punching units |
| CA2390044A1 (en) * | 2001-07-02 | 2003-01-02 | Ishikawajima-Harima Heavy Industries Co., Ltd. | Die cushion apparatus |
| CN202387850U (en) * | 2011-12-13 | 2012-08-22 | 温州市长江标准件有限公司 | Die stamping device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103624162A (en) * | 2013-12-05 | 2014-03-12 | 昆山市珍和模具五金机械有限公司 | Pneumatic demolding type constant-pressure cup punching mold |
| CN103658400A (en) * | 2013-12-05 | 2014-03-26 | 昆山市珍和模具五金机械有限公司 | Constant pressure type cup punching die |
| CN103658400B (en) * | 2013-12-05 | 2017-10-27 | 广东泓睿科技有限公司 | A kind of Constant pressure type cup punching die |
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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 | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120718 |