CN102744319B - Cold stamping assistive device and stamping process thereof - Google Patents
Cold stamping assistive device and stamping process thereof Download PDFInfo
- Publication number
- CN102744319B CN102744319B CN201210222576.3A CN201210222576A CN102744319B CN 102744319 B CN102744319 B CN 102744319B CN 201210222576 A CN201210222576 A CN 201210222576A CN 102744319 B CN102744319 B CN 102744319B
- Authority
- CN
- China
- Prior art keywords
- stamping parts
- stamping
- punch
- pad
- punching press
- 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
Links
- 238000000034 method Methods 0.000 title abstract description 12
- 238000004080 punching Methods 0.000 claims description 19
- 238000007493 shaping process Methods 0.000 claims description 11
- 238000005516 engineering process Methods 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 239000004568 cement Substances 0.000 claims description 3
- 229920001971 elastomer Polymers 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims 3
- 238000003754 machining Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 12
- 238000005452 bending Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
Landscapes
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention discloses a cold stamping assistive device and a stamping process thereof. The assistive device is a gasket located between a stamping piece and a convex mold; the contact surface of the gasket and the stamping piece is matched with the stamping piece in shape; and the contact surface between the gasket and the convex mold is a plane. With the adoption of the assistive device and a machining method, the product quality is improved; after being shaped, a product which is stamped by using the process can meet the requirements of components, so as to meet the requirements of clients; and moreover the working procedures are reduced; and the cost is reduced.
Description
Technical field
The present invention relates to cold stamping field, in particular, relate to a kind of by the accessory of former for camber line material bending ram and Sheet Metal Forming Technology thereof.
Background technology
In the technique that cold stamping is shaped; when the cross section strip piece that is camber line is carried out rushing curved; the shape face of stamping parts often there will be the phenomenon of cracking, fold, folded material; these phenomenons can have influence on outward appearance, the quality of finished product; finished product even can be made to scrap; the measure taked at present carries out reinforcement, Jia Bao when punching press to shape face, adds drawing groove, even increases by one preform treatment process, but still can not reach ideal effect.
Summary of the invention
Technical problem to be solved by this invention realizes a kind ofly guaranteeing that cross section is that the strip piece of camber line carries out rushing curved without cracking, fold, folded punching press accessory and process thereof of expecting phenomenon.
To achieve these goals, the technical solution used in the present invention is: a kind of cold stamping accessory, and this accessory is the pad between stamping parts and punch, and described pad and the contact surface of stamping parts and stamping parts shape adapt, and are plane with the contact surface of punch.
Described pad is by having elasticity and the polyurethane of quality softness, rubber or plastic cement are made.
Stamping parts length before described pad and punching press, thickness error are ± 10%.
Utilize a Sheet Metal Forming Technology for accessory, comprising:
Step 1, adjustment mold stroke, be adjusted to when mould matched moulds is to end of travel, under concave, convex, intermode has the gap of 15-30% spacer thickness;
Step 2, stamping parts to be placed between concave, convex counterdie, then pad is placed between stamping parts and punch, form punching press;
Step 3, adjustment mold stroke, being adjusted to mould can matched moulds completely;
Step 4, the stamping parts after shaping and punching is placed between concave, convex counterdie, carries out shaping punching press.
During described step 2 shaping and punching, burn close time needs more than 3 seconds.
The invention has the advantages that this accessory and processing method thereof improve product quality, by the product taking this technique to suppress out, again after shaping, meet the requirement of part completely, thus meet the requirement of client, and decrease operation, reduce cost, specifically, the shape face of some part, need to increase several roads piece pre-forming die, just can reach the shape face requirement of part; Also to amplify the scantling of product, to meet the requirement of flanging, like this, even if compressing, also must increase trimming die.Thus considerably increase cost (raw material, processing, the cost such as artificial); And the appearance of this new technology just changes everything well.First, after shimming is shaped substantially, shaping need only be carried out just passable on same pair of mould; Tablet needed for product does not need to bleed off pressure limit surplus afterwards, is directly put into position disposable for the spread material of part, as long as can meet the dimensional requirement of part.
Accompanying drawing explanation
Mark in the content expressed every width accompanying drawing in description of the present invention below and figure is briefly described:
Fig. 1 is cold stamping accessory using state explosive view;
Fig. 2,3 is stamping parts finished product schematic diagram;
Mark in above-mentioned figure is: 1, punch; 2, die; 3, pad; 4, stamping parts.
Detailed description of the invention
Known see Fig. 1-3, cold stamping accessory is the pad 3 between stamping parts 4 and punch 1, stamping parts 4 is one has been circular arc through a punching press cross section, the metal blank of the shapes such as wavy or special-shaped arc-shaped, the bending stamping procedure completing the bending punching press different directions with first time under punch 1 of the present invention and die 2 punching press is needed during two times punch, but knee, arc line shaped face can produce unnecessary material, before punch 1 and die 2 are not incorporated into the end, these unnecessary material, the gap of mould will be deposited in, when treating that mould is incorporated into the end, these unnecessary material will be superimposed, form folded material or fold.And add pad 3 between stamping parts 4 and punch 1 after, mould can be eliminated and be incorporated into space before the end between stamping parts 4 and mould, force stamping parts 4 all the time with open and flat, full state conformal.Therefore this pad 3 and the contact surface shape of stamping parts 4 need to adapt with stamping parts 4, such as in semi-cylindrical, wavy or arc line shaped, the contact surface of another side and punch 1 is plane, two end faces are also plane, and the thickness of pad 3, stamping parts 4 thickness (height of whole) before length and punching press, error in length is ± 10%, preferred pad 3 is slightly less than the size of stamping parts 4, be advisable to fill up stamping parts 4 cavity, such matched moulds process Intermediate gasket 3 can fill whole die cavity, therefore the material require softness making pad 3 has flexible nonmetallic materials, can select there is elasticity and the polyurethane of quality softness, rubber or plastic cement.
Pad 3 must be placed between stamping parts 4 and punch 1, because stamping parts 4 and pad 3 contact surface are concave surface, is easy to place pad, to place and be difficult to locate, affect punch forming effect if be placed between stamping parts 4 and die 2; Pad 3 must be substantially in semi-cylindrical, need to adapt with stamping parts 4 with the contact surface shape of stamping parts 4, itself and punch 1 contact surface are plane, ensure that and add pad 3 integral thickness, solidness, because such shape is the most stable, firm, not easily crushed, simultaneously also can with stamping parts 4 close contact, avoid folded material, if change to semi-annular shape, its service life can reduce greatly, easily crushed, if use other shapes, may affect conformal effect.
Utilize above-mentioned pad 3 to carry out adding man-hour, be mainly divided into following four steps:
Step 1, on punch press, install mould after play punch 1, and adjust mold stroke, be adjusted to when mould matched moulds is to end of travel, the gap of 15-30% pad 3 thickness is had between concave, convex counterdie 2,1, the preferably gap of 20%, thus stamping parts 4 just one-step forming can be guaranteed, pad 3 can be avoided again crushed;
Step 2, stamping parts 4 is placed between concave, convex counterdie 2,1, again pad 3 is placed between stamping parts 4 and punch 1, form punching press, because stroke adjusts, now mould can not matched moulds completely, and mould and stamping parts 4 have been positioned over and have flexible pad 3, therefore need to maintain matched moulds state after matched moulds and need more than 3 seconds, preferably 5 seconds, to guarantee the bending basic configuration of stamping parts 4 out;
Step 3, adjustment mold stroke, being adjusted to mould can matched moulds completely, the stroke state namely during normal ram;
Step 4, the stamping parts 4 after step 2 shaping and punching is placed between concave, convex counterdie 2,1, carry out shaping punching press, now mould is there to be basic curved shape, the matched moulds when not having pad 3, also can not occur folded material or buckling phenomena again, after shaping punching press, stamping parts 4 completes shaping, product surface is bright and clean, smooth, and product percent of pass can reach nearly 100%.
It should be noted that: my this new Sheet Metal Forming Technology is suitable only for the book plate of below 1.0mm (more book is better); Material can be gold, silver, copper, aluminium, iron, 409L(to hard metal material, effect is bad).
Above by reference to the accompanying drawings to invention has been exemplary description; obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present invention is conceived and technical scheme is carried out; or design of the present invention and technical scheme directly applied to other occasion, all within protection scope of the present invention without to improve.
Claims (1)
1. utilize a Sheet Metal Forming Technology for cold stamping accessory, it is characterized in that:
Described accessory is for being positioned at the pad (3) between stamping parts (4) and punch (1), and contact surface and stamping parts (4) shape of described pad (3) and stamping parts (4) adapt, and are plane with the contact surface of punch (1);
Sheet Metal Forming Technology step is as follows:
Step 1, adjustment mold stroke, be adjusted to when mould matched moulds is to end of travel, have the gap of 15-30% pad (3) thickness between punch and matrix (2,1);
Step 2, to be placed between punch and matrix (2,1) by stamping parts (4), then to be placed between stamping parts (4) and punch (1) by pad (3), form punching press, burn close time needs more than 3 seconds;
Step 3, adjustment mold stroke, being adjusted to mould can matched moulds completely;
Step 4, the stamping parts (4) after shaping and punching to be placed between punch and matrix (2,1), to carry out shaping punching press;
Described pad (3) is by having elasticity and the polyurethane of quality softness, rubber or plastic cement are made;
Stamping parts (4) length before described pad (3) and punching press, thickness error are ± 10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210222576.3A CN102744319B (en) | 2012-06-29 | 2012-06-29 | Cold stamping assistive device and stamping process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210222576.3A CN102744319B (en) | 2012-06-29 | 2012-06-29 | Cold stamping assistive device and stamping process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102744319A CN102744319A (en) | 2012-10-24 |
| CN102744319B true CN102744319B (en) | 2015-03-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210222576.3A Expired - Fee Related CN102744319B (en) | 2012-06-29 | 2012-06-29 | Cold stamping assistive device and stamping process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102744319B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106111808A (en) * | 2016-07-01 | 2016-11-16 | 中航飞机股份有限公司西安飞机分公司 | A kind of anti-fold bending semicanal shaping dies and manufacturing process |
| CN106975700A (en) * | 2017-04-13 | 2017-07-25 | 滁州市东华模具制造有限公司 | A kind of cold punching die process for stamping of anti-tripping waste |
| WO2019178819A1 (en) * | 2018-03-22 | 2019-09-26 | 深圳市瑞德丰精密制造有限公司 | Compression method for battery cover plate and raw material thereof, and battery cover plate |
| CN109396267B (en) * | 2018-12-05 | 2024-04-12 | 云南南天电子信息产业股份有限公司 | Spherical workpiece machining die and machining method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2641215A1 (en) * | 1988-12-30 | 1990-07-06 | Isoform | DEVICE FOR STAMPING SHEET MATERIALS |
| TWI232140B (en) * | 2002-11-21 | 2005-05-11 | Ting-Fang Wang | Method for shaping a seamless aluminum alloy wheel rim |
| CN201558908U (en) * | 2009-12-07 | 2010-08-25 | 青岛海立达冲压件有限公司 | Machining die for screw socket at opening part of stretching part |
| CN102441609A (en) * | 2010-10-09 | 2012-05-09 | 侯召海 | Mould for bending thin-wall pipe |
| CN202639062U (en) * | 2012-06-29 | 2013-01-02 | 袁志龙 | Cold stamping auxiliary tool |
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2012
- 2012-06-29 CN CN201210222576.3A patent/CN102744319B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN102744319A (en) | 2012-10-24 |
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Granted publication date: 20150325 |