CN102814377A - Method for drawing and forming wide flange panel-shaped parts - Google Patents
Method for drawing and forming wide flange panel-shaped parts Download PDFInfo
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- CN102814377A CN102814377A CN2012102353920A CN201210235392A CN102814377A CN 102814377 A CN102814377 A CN 102814377A CN 2012102353920 A CN2012102353920 A CN 2012102353920A CN 201210235392 A CN201210235392 A CN 201210235392A CN 102814377 A CN102814377 A CN 102814377A
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Abstract
The invention relates to a method for drawing and forming wide flange panel-shaped parts. The method comprises the steps as follows: arranging convex die embedding blocks on the positions on a lower die plate of a drawing die and corresponding to a convex hull on a flange face of the wide flange panel-shaped parts, and keeping the material pressing face of the parts in a smoothness state, so as to ensure the mobility of the material on the material pressing face, and as a result, the parts can be fully formed, and the requirement on rigidity of the parts can be ensured. The method is an effective technical method for drawing and forming plate-shaped parts under a complex parts. By adopting the method, the influence of the convex hull on the flange face to the forming effect during drawing and forming processes of the wide flange panel-shaped parts can be effectively solved; the method is specially suitable for being applied to drawing and forming thin-plate type cold punching parts with thickness less than 2mm under the condition that the convex hull on the flange face is 10 to 40mm in height.
Description
Technical field
The present invention relates to a kind of method of wide flange panel-like product draw forming, belong to the material forming field.
Background technology
The wide model of process for stamping and forming of material be applied to the every field in the commercial production, yet when some have the product stretch forming of wide flange face, if protruding convex closure is arranged on its flange face; And when requiring this flange face as binder surface on the technology, this convex closure will seriously influence flowing of material on the binder surface, if strengthen pressure-pad-force; Plate cracking on the binder surface can't continue to draw, if reduce pressure-pad-force; The material that then can occur on the binder surface is wrinkling, can't realize equally drawing.The example that a kind of typical wide flange panel-like product draws is the draw forming of automobile front floor.
The automobile industry of China is maked rapid progress in recent years; Meanwhile, the consumer also requires increasingly high to the quality of automobile, and the mould design and manufacturing technology is the core technology of modern punching production; Automobile front floor is a floor member more important on the automobile; Requirement to this part must guarantee that it is wrinkle resistant, excessive attenuation phenomenon do not occur, also needs enough rigidity simultaneously.
The characteristics of automobile front floor are that the product degree of depth is dark, and shape rises and falls big, and product flange face width is big, and protruding convex closure is arranged on flange face.Generally, in order to guarantee forming effect preferably, generally be flange face as binder surface, therefore require can not have on the binder surface too significantly convex closure, in order to avoid influence the mobile of material.But generally, protruding convex closure is arranged on the flange face, these convex closures badly influence flowing of material when drawing, and when pressure-plate-force was big, convex closure place material breaks caused the product cracking to be shaped, and when pressure-plate-force hour, this place's windrow is wrinkling.The shaping of the product that rigidity is intact need let material fully be out of shape under certain pressure.
Summary of the invention
Technical problem to be solved by this invention provides a kind of method of wide flange panel-like product draw forming; Flange face is the plane or the almost plane of the outside of middle part plane or almost plane that protruding or recessed product shape is arranged; The present invention can prevent when wide flange panel-like product from drawing wrinkling, and can keep the product favorable rigidity.
The technical scheme that the present invention solves the problems of the technologies described above is following: a kind of method of wide flange panel-like product draw forming, and its step is following:
On the lower bolster of drawing die, with the flange face of said wide flange panel-like product on the corresponding position of convex closure be provided with punch insert;
Said wide flange panel-like product is stretched;
When said wide flange panel-like product is stretched to the height of convex closure on the flange face that equals said wide flange panel-like product apart from the distance of shaping position; Said punch insert begins the jack-up that makes progress of the wide flange panel-like product in drawing; Said convex closure is shaped gradually, until drawing end.
Further, the height of convex closure is 10mm-40mm on the flange face of said wide flange panel-like product.
The invention has the beneficial effects as follows: the present invention is owing to separate the convex closure on the flange face; The form fix of inserting with convex closure is on die shoe; Therefore guarantee the flowability of material on binder surface, thereby realized the abundant shaping of product, guaranteed the rigidity requirement of product.For realizing that an effective process has been found in the stretch forming of platy under the complex situations.When effectively having solved wide flange panel-like product draw forming; Convex closure on the flange face is to the influence of forming effect; Be more suitable in sheet thickness below 2mm, the convex closure height is in the stretch forming of the thin plate class wide flange face cold stamping part of 10mm-40mm on the flange face.
Description of drawings
Fig. 1 is the plane of the bed die on the preceding floor of the present invention;
The axonometric drawing that Fig. 2 blocks along the A_A position among Fig. 1 for the preceding floor of the present invention;
Fig. 3 is the sectional view of the upper and lower mould on the preceding floor of the present invention along the A_A position among Fig. 1.
In the accompanying drawing, the list of parts of each label representative is following:
1, push rod, 2, blank holder, 3, draw die, 4, the punch insert holder, 5, punch insert, 6, draw the punch holder, 7, draw punch, 8, wide flange panel-like product.
The specific embodiment
Below in conjunction with accompanying drawing principle of the present invention and characteristic are described, institute gives an actual example and only is used to explain the present invention, is not to be used to limit scope of the present invention.
The rectangle convex closure that two 300*120*30 are arranged on the flange face of wide flange panel-like product in the present embodiment when drawing, is a mold above the wide flange panel-like product 8; Be bed die below, punch insert 5 is fixed on above the punch insert holder 4 of lower bolster, draws punch 7 and is fixed on and draws above the punch holder 6; During work, push rod 1 is blank holder 2 jack-up, ejection height 250mm (effectively impulse stroke 240mm); Draw die 3 descending beginnings and stretch, when stretching 210mm finished to also have 30mm apart from being shaped, the punch insert 5 of bottom was started working; The shape that upwards will locate becomes out, finishes until stretching.So far, the shape of this product end that all is shaped.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (2)
1. the method for a wide flange panel-like product draw forming is characterized in that,
On the lower bolster of drawing die, with the flange face of said wide flange panel-like product on the corresponding position of convex closure be provided with punch insert;
Said wide flange panel-like product is stretched;
When said wide flange panel-like product is stretched to the height of convex closure on the flange face that equals said wide flange panel-like product apart from the distance of shaping position; Said punch insert begins the jack-up that makes progress of the wide flange panel-like product in drawing; Said convex closure is shaped gradually, until drawing end.
2. the method for wide flange panel-like product draw forming as claimed in claim 1 is characterized in that the height of convex closure on the flange face of said wide flange panel-like product is 10mm-40mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102353920A CN102814377A (en) | 2012-07-09 | 2012-07-09 | Method for drawing and forming wide flange panel-shaped parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102353920A CN102814377A (en) | 2012-07-09 | 2012-07-09 | Method for drawing and forming wide flange panel-shaped parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102814377A true CN102814377A (en) | 2012-12-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102353920A Pending CN102814377A (en) | 2012-07-09 | 2012-07-09 | Method for drawing and forming wide flange panel-shaped parts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102814377A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106694710A (en) * | 2016-11-30 | 2017-05-24 | 汽-大众汽车有限公司 | Automobile side wall outer plate drawing die provided with auxiliary drawing male die |
| CN107052159A (en) * | 2017-04-21 | 2017-08-18 | 烟台泰利汽车模具股份有限公司 | A kind of drawing die slow tiner and application process |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2206421C2 (en) * | 2001-05-16 | 2003-06-20 | Акционерное общество "АвтоВАЗ" | Method for drawing hollow part at holding them |
| US20100064759A1 (en) * | 2008-09-18 | 2010-03-18 | Benteler Automobiltechnik Gmbh | Method and device for press-hardening a metallic formed structure |
| CN201664731U (en) * | 2010-04-15 | 2010-12-08 | 重庆理工大学 | Solid particle male-die forming die with a movable draw bead |
| CN201815594U (en) * | 2010-09-17 | 2011-05-04 | 浙江吉利汽车研究院有限公司 | Structure for stamping binder surface of drawing die |
| CN102151752A (en) * | 2010-12-10 | 2011-08-17 | 重庆大学 | Stamping mould with movable draw bead |
| CN202224531U (en) * | 2011-09-30 | 2012-05-23 | 联伟汽车零部件(重庆)有限公司 | Drawing die for processing parts made of high-tension material |
| CN202263837U (en) * | 2011-09-06 | 2012-06-06 | 浙江黄岩冲模厂 | Over-drawing die with movable drawing rib for high-strength plate |
-
2012
- 2012-07-09 CN CN2012102353920A patent/CN102814377A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2206421C2 (en) * | 2001-05-16 | 2003-06-20 | Акционерное общество "АвтоВАЗ" | Method for drawing hollow part at holding them |
| US20100064759A1 (en) * | 2008-09-18 | 2010-03-18 | Benteler Automobiltechnik Gmbh | Method and device for press-hardening a metallic formed structure |
| CN201664731U (en) * | 2010-04-15 | 2010-12-08 | 重庆理工大学 | Solid particle male-die forming die with a movable draw bead |
| CN201815594U (en) * | 2010-09-17 | 2011-05-04 | 浙江吉利汽车研究院有限公司 | Structure for stamping binder surface of drawing die |
| CN102151752A (en) * | 2010-12-10 | 2011-08-17 | 重庆大学 | Stamping mould with movable draw bead |
| CN202263837U (en) * | 2011-09-06 | 2012-06-06 | 浙江黄岩冲模厂 | Over-drawing die with movable drawing rib for high-strength plate |
| CN202224531U (en) * | 2011-09-30 | 2012-05-23 | 联伟汽车零部件(重庆)有限公司 | Drawing die for processing parts made of high-tension material |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106694710A (en) * | 2016-11-30 | 2017-05-24 | 汽-大众汽车有限公司 | Automobile side wall outer plate drawing die provided with auxiliary drawing male die |
| CN107052159A (en) * | 2017-04-21 | 2017-08-18 | 烟台泰利汽车模具股份有限公司 | A kind of drawing die slow tiner and application process |
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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 | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 264003, No. 42, pioneering Road, hi tech Zone, Shandong, Yantai Applicant after: YANTAI TAILI AUTOMOTIVE MOLD MANUFACTURING CO.,LTD. Address before: 264670, No. 42, pioneering Road, hi tech Zone, Shandong, Yantai Applicant before: Yantai thyrite automobile die Manufacturing Co., Ltd |
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| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: YANTAI TAILI AUTOMOBILE TOOLING CO., LTD. TO: YANTAI TAILI AUTOMOBILE MOULD CO., LTD. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20121212 |