CN1098034A - The method of punching arc sheetmetal - Google Patents
The method of punching arc sheetmetal Download PDFInfo
- Publication number
- CN1098034A CN1098034A CN 94105682 CN94105682A CN1098034A CN 1098034 A CN1098034 A CN 1098034A CN 94105682 CN94105682 CN 94105682 CN 94105682 A CN94105682 A CN 94105682A CN 1098034 A CN1098034 A CN 1098034A
- Authority
- CN
- China
- Prior art keywords
- cloth pad
- punching
- arc sheetmetal
- punching press
- punch
- 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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- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The present invention is to use the method for cloth pad punching arc sheetmetal, and technical scheme is: the thin and uniform cloth pad of varied in thickness in thick middle two ends is put in the middle part between the sheet-metal blank.When carrying out punching press, thin plate will produce excessive punching press.Like this, just can obtain qualified curved thin plate through bounce-back again after the workpiece demoulding, when using the inventive method punching arc sheetmetal, need not revise mould itself, thereby Sheet Metal Forming Technology is simple, the once mounting test can be finished the typing of cloth pad, cost is low, and is suitable for general pressing equipment.
Description
The present invention relates to a kind of metal stamping formed method, particularly use method flexible or the elastic insert punching arc sheetmetal.
The method of known punching arc sheetmetal is: carry out punch test earlier, the metallic plate rebound amount of measuring according to punch test first removes to revise mould, the radius of the radian of mould is increased or reduce, and then carry out punch test and revise mould once more according to test situation, until producing qualified curved metal spare, at last with mould shape.With this processing method punching arc sheetmetal, generally need to revise typing at last several times, the test period is long, the cost height.
Chinese patent CN1043646A discloses a kind of method and apparatus of pressing sheet material with deformable punch under ram, this method is that cushion is installed in a working portion that makes it to become punch die on the drift, with solving the negative pressure appearance that creases distortion and produce that occurs in the complicated shallow drawing process, this punching course needs two steps to finish, and can only be applied to a kind of specific two moving pressing equipment.
The object of the invention is to overcome above-mentioned shortcoming of the prior art and provides a kind of Sheet Metal Forming Technology simple, and cost is low and be suitable for the method for the punching arc sheetmetal of all pressing equipments.
The present invention seeks to be achieved through the following technical solutions: sheet-metal blank is placed between punch and the die, put into the thin and uniform cloth pad of varied in thickness in thick middle two ends in the punch and the middle part between the sheet billet of mould.When carrying out punching press, thin plate will produce excessive punching press.Like this, just can obtain qualified curved thin plate through bounce-back again after the workpiece demoulding.
Need not revise mould itself during punching arc sheetmetal of the present invention, thus single between Sheet Metal Forming Technology, the once mounting test can be finished the typing of cloth pad, and cost is low, and is suitable for general pressing equipment.
Accompanying drawing is the structural representation of one embodiment of the invention.
Below in conjunction with accompanying drawing, further specify the present invention by embodiment.
Sheet-metal blank (3) is placed between punch (1) and the die (5), put into the thin and uniform cloth pad of varied in thickness (2) in thick middle two ends in the punch (1) and the middle part between the sheet billet (3) of mould.Two ends between die (5) and sheet billet (3) add the thin and uniform cloth pad of varied in thickness (4) of the thick end of an end respectively, cloth pad (2) and the combination cloth pad of cloth pad (4) for being sewed together with the several layers textile, the maximum ga(u)ge of cloth pad is slightly larger than this metal sheet radian rebound amount, carry out punch test then, according to the size that records the thin plate rebound amount after the punching press thicken or attenuate cloth pad when stamping out the arc of required radian, with this cloth pad (2), (4) typing, when the metallic plate of punching press identical radian measure, add the cloth pad as stated above in mould, the demoulding gets final product after the punching press.
Claims (2)
1, a kind of method of using liner punching arc sheetmetal on punch press that elastomeric material makes, sheet-metal blank (3) is placed between punch (1) and the die (5), technical process comprises punching press, the demoulding, the punch (1) and the mid portion between the sheet billet (3) that it is characterized in that mould are put into the thin and uniform cloth pad of varied in thickness (2) in thick middle two ends, two ends between die (5) and thin plate (3) add the thin and uniform cloth pad of varied in thickness (4) of the thick end of an end respectively, during punching press, thin plate produces excessive punching press, the demoulding then.
2,, it is characterized in that said cloth pad (2), (4) combination cloth pad for being sewed together with the several layers textile according to the method for the described punching arc sheetmetal of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94105682 CN1098034A (en) | 1994-05-27 | 1994-05-27 | The method of punching arc sheetmetal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94105682 CN1098034A (en) | 1994-05-27 | 1994-05-27 | The method of punching arc sheetmetal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1098034A true CN1098034A (en) | 1995-02-01 |
Family
ID=5032146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94105682 Pending CN1098034A (en) | 1994-05-27 | 1994-05-27 | The method of punching arc sheetmetal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1098034A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103658330A (en) * | 2012-08-29 | 2014-03-26 | 北京市太阳能研究所集团有限公司 | Forming die and method for solar curved surface light condensing plate |
| CN106061640A (en) * | 2014-01-30 | 2016-10-26 | 杰富意钢铁株式会社 | Press-forming method and method of manufacturing press-formed product |
-
1994
- 1994-05-27 CN CN 94105682 patent/CN1098034A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103658330A (en) * | 2012-08-29 | 2014-03-26 | 北京市太阳能研究所集团有限公司 | Forming die and method for solar curved surface light condensing plate |
| CN106061640A (en) * | 2014-01-30 | 2016-10-26 | 杰富意钢铁株式会社 | Press-forming method and method of manufacturing press-formed product |
| US10413956B2 (en) | 2014-01-30 | 2019-09-17 | Jfe Corporation | Press forming method and method of manufacturing press formed product |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |