CN101633017A - Punching method for preventing plate corner part in car door from wrinkling - Google Patents
Punching method for preventing plate corner part in car door from wrinkling Download PDFInfo
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- CN101633017A CN101633017A CN200910017806A CN200910017806A CN101633017A CN 101633017 A CN101633017 A CN 101633017A CN 200910017806 A CN200910017806 A CN 200910017806A CN 200910017806 A CN200910017806 A CN 200910017806A CN 101633017 A CN101633017 A CN 101633017A
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- car door
- convex tendon
- wrinkling
- inner plate
- plate corner
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Abstract
The invention discloses a punching method for preventing a plate corner in a car door from wrinkling. In the method, craft rib supplement is added in modeling by a drawing procedure to completely draw out the shape of the plate corner in the car door, and only a root fillet needs to be machined in subsequent reshaping, thus reducing the reshaping load in the subsequent procedure, changing the technical problems of the existing business such as shallow drawing, a traditional great shaping process method and easy drawing but difficulty in reshaping, and effectively solving the problem of wrinkling of products which troubles the traditional process for a long time and can not be solved.
Description
Technical field
The present invention relates to a kind of processing method for stamping of automobile panel.
Background technology
Inner plate of car door belongs to the category-B spare in the automobile panel, has complex-shapedly, and the hole is many, and drawing depth is big, is difficult for the wrinkling problem of drawing in the characteristics, especially the inner plate of car door bight that are shaped, is the technical barrier that each inner plate of car door all can run into and be difficult to again solve.
The inner plate of car door shape realizes by drawing, and drawing is by mould plate to be applied complicated outside force, plate is produced flow.When plate flows in the plate complicated stress state can appear.Compare very little thin plate for the thickness of slab size with other sizes, thickness direction instability during moulding, in forming process, when material be difficult to ideal surface (smooth surface of envelope punch die) flow or plate in keep the stress state of ideal surface and will produce wrinkle when unstable.
And have the stamping parts of wrinkle, then following defective can appear:
1. the size of part and surface configuration are bad, influence the outward appearance of product.
2. owing to the variation of part wrinkle place thickness of slab tissue, when part bears various load, can produce fatigue failure at first herein and cause part breaking, thereby serious traffic accident takes place in the automobile that causes in travelling, and causes casualties, and has potential safety hazard.
3. cause the processing difficulties of later process.
4. the wrinkling place of inner plate of car door die face serious wear causes the aging in advance and ultimate failure of mould.
Summary of the invention
Technical problem to be solved by this invention provides the process for stamping that a kind of technology is simply avoided plate corner part in car door from wrinkling.
For solving the problems of the technologies described above, technical scheme of the present invention is: the process for stamping of avoiding plate corner part in car door from wrinkling, described method comprises: increase the technology convex tendon and replenish when the drawing operation moulding, described technology convex tendon is the arc convex tendon that is arranged on periphery, described inner plate of car door bight, and described arc convex tendon is a center arrangement with described inner plate of car door bight.
As optimized technical scheme, the two ends of described arc convex tendon have the transition convex tendon that extends to the inner plate of car door straight flange along the end points of described arc convex tendon, and the height of projection of described transition convex tendon and width gradual change are zero.
As to improvement of the technical scheme, the angle of described two transition convex tendons is not more than the angle in described inner plate of car door bight.
Owing to adopted technique scheme, the present invention replenishes by increase the technology convex tendon when the drawing operation moulding, realized the shape in inner plate of car door bight is all drawn out, only whole root fillet during the postorder shaping, thereby reduced subsequent handling shaping amount, change present industry shallow recessing, big shaping traditional handicraft way and drawn the technical barrier of easy shaping difficulty, efficiently solved the long-term puzzlement of traditional handicraft and the wrinkling problem of insurmountable product.
Description of drawings
Accompanying drawing is the structural representation after inner plate of car door that the embodiment of the invention is suitable for draws.
The specific embodiment
As shown in drawings, in the present embodiment, adopt two inner plate of car door 2 about sheet material 1 punch forming, the sheet material of described inner plate of car door 2 peripheries is provided with around bead 3.For avoiding inner plate of car door bight 21 wrinkling, the method that present embodiment adopts comprises: increase the technology convex tendon and replenish when the drawing operation moulding, described technology convex tendon is the arc convex tendon 4 that is arranged on 21 peripheries, described inner plate of car door bight, and described arc convex tendon 4 is a center arrangement with described inner plate of car door bight 21.
Wherein, the two ends of described arc convex tendon 4 have the transition convex tendon 41 that extends to the inner plate of car door straight flange along the end points of described arc convex tendon 4, and the height of projection of described transition convex tendon 41 and width gradual change are zero.The angle of described two transition convex tendons 41 is not more than the angle in described inner plate of car door bight 21.
The operation principle of present embodiment:
By changing the angle of described two transition convex tendons 41, can control the flow direction of plate, stop extraneous material to flow to the inside, avoid material to flow into and cause material to assemble and the accumulation wrinkle of initiation.(wrinkle is divided into the unstability wrinkle and piles up wrinkle by forming reason.The unstability wrinkle, the unstability wrinkle is created in the periphery of blank usually by the caused wrinkle of plate internal stress, and before wrinkle occurring, material very big displacement does not take place and flows.Piling up wrinkle then is that material produces bigger flowing to the position that forms wrinkle, and when material and punch die surface were close to fully, surface area was superfluous and periphery can not absorb superfluous material, so formed wrinkle.The wrinkle that the present invention discussed belongs to piles up wrinkle)
As can be seen from Figure, the angle of described two transition convex tendons 41 is more little, and it is just strong more to control the mobile to the inside ability of extraneous material, and it is just good more that the control panel stockpile amasss wrinkling effect; Otherwise then.
By regulating the height of arc convex tendon 4, can change the ability that the bight absorbs excess stock, thereby reach the control corrugation effect.As seen from the figure, increase arc convex tendon 4 height, can strengthen the ability that absorbs excess stock, strengthen the wrinkling effect of control, the back part breaks but the 4 too high meetings of arc convex tendon cause being shaped; Reduce arc convex tendon 4 height, the ability that absorbs excess stock also decreases, though the back part that can not cause being shaped breaks, can not effectively solve wrinkle.Therefore,, can find the optimum height of convex tendon, thereby stamp out qualified part by the die trial of limited number of time.
The adjusting of the selection of described two transition convex tendons, 41 angles and arc convex tendon 4 height, be that the stamping technology field is selected one of customary means of optimum technology parameter according to different designs of part with different materials, do not have inventive and novelty, do not do detailed description at this.
In a word; below be only used for illustrating spirit of the present invention for example; be not limiting the scope of the invention, protection scope of the present invention is as the criterion with the content of claim, and any equivalence techniques conversion of making based on spirit of the present invention is all within protection scope of the present invention.
Claims (3)
1. avoid the process for stamping of plate corner part in car door from wrinkling, it is characterized in that, described method comprises: increase the technology convex tendon and replenish when the drawing operation moulding, described technology convex tendon is the arc convex tendon that is arranged on periphery, described inner plate of car door bight, and described arc convex tendon is a center arrangement with described inner plate of car door bight.
2. the process for stamping of avoiding plate corner part in car door from wrinkling as claimed in claim 1, it is characterized in that: the two ends of described arc convex tendon have the transition convex tendon that extends to the inner plate of car door straight flange along the end points of described arc convex tendon, and the height of projection of described transition convex tendon and width gradual change are zero.
3. the process for stamping of avoiding plate corner part in car door from wrinkling as claimed in claim 2 is characterized in that: the angle of described two transition convex tendons is not more than the angle in described inner plate of car door bight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910017806A CN101633017A (en) | 2009-08-04 | 2009-08-04 | Punching method for preventing plate corner part in car door from wrinkling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910017806A CN101633017A (en) | 2009-08-04 | 2009-08-04 | Punching method for preventing plate corner part in car door from wrinkling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101633017A true CN101633017A (en) | 2010-01-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910017806A Pending CN101633017A (en) | 2009-08-04 | 2009-08-04 | Punching method for preventing plate corner part in car door from wrinkling |
Country Status (1)
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101856698A (en) * | 2010-04-30 | 2010-10-13 | 奇瑞汽车股份有限公司 | Door inner panel lower part and manufacturing method thereof |
| CN101972823A (en) * | 2010-06-07 | 2011-02-16 | 浙江吉利汽车有限公司 | Technological process for improving rigidity of skylight part on car roof |
| CN101982328A (en) * | 2010-10-19 | 2011-03-02 | 奇瑞汽车股份有限公司 | Automobile door internal plate understructure |
| CN102000731A (en) * | 2010-09-25 | 2011-04-06 | 山东潍坊福田模具有限责任公司 | Method for stamping dash middle board of automobile |
| CN102019317A (en) * | 2010-09-25 | 2011-04-20 | 山东潍坊福田模具有限责任公司 | Anti-cracking forming method of automobile cavity-shaped internal covering piece corner part |
| CN102909309A (en) * | 2012-10-17 | 2013-02-06 | 盐城理研精密锻造有限公司 | Universal joint forging method and shaping mould |
| CN103212625A (en) * | 2013-05-10 | 2013-07-24 | 奇瑞汽车股份有限公司 | Stamping technology treatment method of skylight on automobile top cover |
| CN103357735A (en) * | 2012-04-01 | 2013-10-23 | 上海赛科利汽车模具技术应用有限公司 | Opening drawing and forming process of vehicle door inner plate |
| CN106944549A (en) * | 2017-04-25 | 2017-07-14 | 安徽江淮汽车集团股份有限公司 | A kind of beam piece drawing die |
| CN108994207A (en) * | 2018-08-01 | 2018-12-14 | 吉林大学 | The method for adjusting relative bearing between shape and plate fiber orientation in drawn component |
| CN110202044A (en) * | 2019-05-11 | 2019-09-06 | 一汽轿车股份有限公司 | A kind of removing method of inner plate of car door percussion mark |
| CN110227771A (en) * | 2018-03-06 | 2019-09-13 | 上海赛科利汽车模具技术应用有限公司 | A kind of exterior panel die face formative method |
| CN110576103A (en) * | 2018-06-08 | 2019-12-17 | 标致雪铁龙汽车股份有限公司 | Forming method of vehicle body side wall structure, vehicle body side wall structure and vehicle |
| CN110695177A (en) * | 2019-10-18 | 2020-01-17 | 芜湖创挚汽车科技有限公司 | Processing method for preventing stretching, stamping and wrinkling at corners of inner door panel |
| CN111515303A (en) * | 2020-03-23 | 2020-08-11 | 一汽奔腾轿车有限公司 | Die structure for eliminating wrinkles on outer vertical wall of inner plate and window frame of vehicle door |
| CN114535391A (en) * | 2022-02-17 | 2022-05-27 | 四川国腾设备制造有限公司 | Drawing forming method of aluminum alloy aircraft engine hood |
| CN114618944A (en) * | 2022-03-15 | 2022-06-14 | 东风柳州汽车有限公司 | Die surface of drawing die for inner plate of vehicle door |
-
2009
- 2009-08-04 CN CN200910017806A patent/CN101633017A/en active Pending
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101856698A (en) * | 2010-04-30 | 2010-10-13 | 奇瑞汽车股份有限公司 | Door inner panel lower part and manufacturing method thereof |
| CN101856698B (en) * | 2010-04-30 | 2013-01-02 | 奇瑞汽车股份有限公司 | Door inner panel lower part and manufacturing method thereof |
| CN101972823A (en) * | 2010-06-07 | 2011-02-16 | 浙江吉利汽车有限公司 | Technological process for improving rigidity of skylight part on car roof |
| CN101972823B (en) * | 2010-06-07 | 2012-09-26 | 浙江吉利汽车有限公司 | Technological process for improving rigidity of skylight part on car roof |
| CN102000731A (en) * | 2010-09-25 | 2011-04-06 | 山东潍坊福田模具有限责任公司 | Method for stamping dash middle board of automobile |
| CN102019317A (en) * | 2010-09-25 | 2011-04-20 | 山东潍坊福田模具有限责任公司 | Anti-cracking forming method of automobile cavity-shaped internal covering piece corner part |
| CN101982328A (en) * | 2010-10-19 | 2011-03-02 | 奇瑞汽车股份有限公司 | Automobile door internal plate understructure |
| CN103357735B (en) * | 2012-04-01 | 2015-05-13 | 上海赛科利汽车模具技术应用有限公司 | Opening drawing and forming process of vehicle door inner plate |
| CN103357735A (en) * | 2012-04-01 | 2013-10-23 | 上海赛科利汽车模具技术应用有限公司 | Opening drawing and forming process of vehicle door inner plate |
| CN102909309A (en) * | 2012-10-17 | 2013-02-06 | 盐城理研精密锻造有限公司 | Universal joint forging method and shaping mould |
| CN102909309B (en) * | 2012-10-17 | 2015-09-02 | 盐城理研精密锻造有限公司 | Universal joint forging method and shaping mould |
| CN103212625A (en) * | 2013-05-10 | 2013-07-24 | 奇瑞汽车股份有限公司 | Stamping technology treatment method of skylight on automobile top cover |
| CN106944549A (en) * | 2017-04-25 | 2017-07-14 | 安徽江淮汽车集团股份有限公司 | A kind of beam piece drawing die |
| CN110227771A (en) * | 2018-03-06 | 2019-09-13 | 上海赛科利汽车模具技术应用有限公司 | A kind of exterior panel die face formative method |
| CN110227771B (en) * | 2018-03-06 | 2021-07-06 | 上海赛科利汽车模具技术应用有限公司 | Outer plate die surface modeling method |
| CN110576103A (en) * | 2018-06-08 | 2019-12-17 | 标致雪铁龙汽车股份有限公司 | Forming method of vehicle body side wall structure, vehicle body side wall structure and vehicle |
| CN108994207B (en) * | 2018-08-01 | 2019-10-11 | 吉林大学 | The method for adjusting relative bearing between shape and plate fiber orientation in drawn component |
| CN108994207A (en) * | 2018-08-01 | 2018-12-14 | 吉林大学 | The method for adjusting relative bearing between shape and plate fiber orientation in drawn component |
| CN110202044A (en) * | 2019-05-11 | 2019-09-06 | 一汽轿车股份有限公司 | A kind of removing method of inner plate of car door percussion mark |
| CN110695177A (en) * | 2019-10-18 | 2020-01-17 | 芜湖创挚汽车科技有限公司 | Processing method for preventing stretching, stamping and wrinkling at corners of inner door panel |
| CN111515303A (en) * | 2020-03-23 | 2020-08-11 | 一汽奔腾轿车有限公司 | Die structure for eliminating wrinkles on outer vertical wall of inner plate and window frame of vehicle door |
| CN114535391A (en) * | 2022-02-17 | 2022-05-27 | 四川国腾设备制造有限公司 | Drawing forming method of aluminum alloy aircraft engine hood |
| CN114618944A (en) * | 2022-03-15 | 2022-06-14 | 东风柳州汽车有限公司 | Die surface of drawing die for inner plate of vehicle door |
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Open date: 20100127 |