CN203484500U - Skylight stamping die for top cover of automobile - Google Patents
Skylight stamping die for top cover of automobile Download PDFInfo
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- CN203484500U CN203484500U CN201320261634.3U CN201320261634U CN203484500U CN 203484500 U CN203484500 U CN 203484500U CN 201320261634 U CN201320261634 U CN 201320261634U CN 203484500 U CN203484500 U CN 203484500U
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- skylight
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- deformation
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Abstract
The utility model discloses a skylight stamping die for the top cover of an automobile. The skylight stamping die comprises a punch (6); projections are arranged along the peripheral trimming contour (2) of the punch (6); four corners of the trimming contour (2) are provided with compensation projections (5); and the shape of a drawn product is changed, a compensation effect in a flanging procedure is employed, and skylight deformation problem is solved from the aspects of defect generation reason and deformation result.
Description
Technical field
The utility model belongs to stamping die of automotive covering part field, relates in particular to a kind of automobile roof diel.
Background technology
Blank bank length after the deburring of position, skylight is less than flange profile arc length, and the flanging process that skylight is carried out belongs to stretch flanging.In turn-up process, flange cutter piece base material is Main Deformation, and as shown in Figure 5, material is elongation strain tangentially, between cutter, to produce unidirectional radial drawing stress and radial stress maximum at flange edge numerical value in force transmission region, and flange face edge becomes deathtrap.Radial drawing strain, thickness direction compression strain, illustrates that plate is along the direction elongation strain of flange tool motion and reduced thickness, in order to continue to maintain plastic deformation, just needs local feed sufficient.But the problem that existing technique mainly exists is flange face, and local lacking, expects, and need to will expect from non-flange face, causes the defects such as plate drawing crack, distortion.Along with the difference increase of edge trimming wheel profile arc length and flange outline line arc length, during flange, material tensioning is more serious, and deformation extent is larger.
This defect is prevalent in the vehicle of top cover with skylight, according to the difference of Present site, is divided into two classes: a class is corner area A place, skylight deformation defect, and a class is B place, region, stage casing, skylight deformation defect.The former is due in turn-up process, and the pressure of nitrogen spring cannot accomplish corner area A face to kill completely, and flange face can pull facing down of region A to cause distortion, when serious, there will be face to tear, the angle defect such as subside, as; The latter's deformation principle is basic similar to corner, is all that just deflection is less than corner in theory because stretch flanging lacks the former of material thereby generation.At present the most frequently used method is to suppress processing in mould part, promotes the measures such as coincidence rate of on-the-spot bedding-in, can more effectively solve that bight subsides and the defect such as profile weighs wounded, but still cannot eliminate the slight deformation being caused by stretch flanging.
Utility model content
Technical problem to be solved in the utility model is a kind of non-automobile roof diel of turning over all over facial disfigurement that skylight stretch flanging causes that solves.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of automobile roof diel, comprise punch, the edge trimming wheel profile along surrounding on described punch is provided with a series of projections, and the position, four angles of described edge trimming wheel profile is provided with compensation projection.
Described projection is water-drop-shaped projection, and water-drop-shaped convex surfaces is arc-shaped surface.
Described projection is provided with reinforcement away from a side at punch center.
The utility model has the advantage of, when when stretch flanging process occurs that demand will be expected in part, water-drop-shaped projection is feed in time, has alleviated local state under feeding, by Deformation control within flange face, thereby reduced or fundamentally eliminated the existence of defect.Water droplet shape is evened up after flange stretches, and does not affect the postorder processing of flange face with attractive in appearance.Reinforcement as auxiliary water-drop-shaped projection end layout has strengthened local intensity, has improved the drag to drawing crack and collapse-deformation.
Skylight corner adopts compensation projection, is the punching press compensation pretreatment of doing for deformation of products in moulding in early stage.The corner deformation place that becomes different is raised face to the height (as Fig. 2) of certain numerical value in art shapes, and the plate drawing out is higher than the original profile of product.Can in turn-up process, balance out like this region A that drawing tension the causes deflection that faces down, thereby after flange, reach the requirement of Element Design.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of automobile roof diel of the utility model;
Fig. 2 is the structural representation of four angle compensation projections of Fig. 1 automobile roof diel;
Fig. 3 is the structural representation of the water-drop-shaped projection of Fig. 1 automobile roof diel;
Fig. 4 is that Fig. 2 compensates protruding section structure schematic diagram;
Fig. 5 is flange distressed structure schematic diagram;
Mark in above-mentioned figure is: 1, flange outline line, 2, edge trimming wheel profile, 3, water-drop-shaped projection, 4, reinforcement, 5, compensation projection, 6, punch.
The specific embodiment
Fig. 1～4 are the structural representation of a kind of automobile roof diel of the utility model, comprise punch 6, and the edge trimming wheel profile 2 along surrounding on punch 6 is provided with a series of projections, and the position, four angles of edge trimming wheel profile 2 is provided with compensation projection 5.
Projection is water-drop-shaped projection 3, and water-drop-shaped projection 3 surfaces are arc-shaped surface.Projection is provided with reinforcement 4 away from a side at punch 6 centers.
Be mainly at upper and lower die drawing, to prolong flange face place a kind of " water droplet moulding " mechanism is set, edge trimming wheel profile 2 passes from a succession of water droplet moulding; And in water droplet moulding end, reinforcement 4 is set.Whole mechanism as shown in Figure 1.
Corner area A place, skylight adopts the method for doing regional compensation projection 5, in yielding district, four bights, pass through the pre-treatment of product in early stage, drawing modeling profile is out of shape to reverse punching press compensation, the most relative major defect region A distortion that faces down, so be compensation projection 5, as shown in Figure 2 herein.
Operation principle:
At the corresponding mould of skylight straight portion, draw flange face and added " water droplet moulding ", water-drop-shaped projection 3 surfaces are arc-shaped surface, as Fig. 3.Because edge trimming wheel profile 2 continues to pass through all water droplet moulding, objectively increased the curve total length of drawn component edge trimming wheel profile 2, blank shape in single local location deburring becomes space curved surface from plane simultaneously, increased the volume of blank in unit are, thereby having formed local " remaining meat ", is in fact a kind of remaining meat buildup compensation mechanism.
When stretch flanging process occurs that demand will be expected in part, Yu Rou mechanism is feed in time, has alleviated local state under feeding, by Deformation control within flange face, thereby reduced or fundamentally eliminated the existence of defect.Water droplet shape is evened up after flange stretches, and does not affect the postorder processing of flange face with attractive in appearance.Reinforcement 4 as auxiliary water droplet end layout has strengthened local intensity, has improved the drag to drawing crack and collapse-deformation.
Skylight corner adopts compensation projection 5, is the punching press compensation pretreatment of doing for deformation of products in moulding in early stage.The corner deformation place that becomes different is raised face to the height of certain numerical value in art shapes, and as Fig. 2, the plate drawing out is higher than the original profile of product.Can in turn-up process, offset like this region A that drawing tension the causes deflection that faces down, thereby after flange, reach the requirement of Element Design.
Adopt after such structure, the shape of drawing rear product by change is utilized compensating effect thereby realize in overturning process, the reason producing from defect and result two solution skylight, the aspect problem on deformation of distortion.
By reference to the accompanying drawings the utility model is exemplarily described above; obviously the utility model specific implementation is not subject to the restrictions described above; as long as adopted the improvement of the various unsubstantialities that method of the present utility model design and technical scheme carry out; or without improving, design of the present utility model and technical scheme are directly applied to other occasion, all within protection domain of the present utility model.
Claims (3)
1. an automobile roof diel, comprises punch (6), it is characterized in that, the upper edge trimming wheel profile (2) along surrounding of described punch (6) is provided with a series of projections, and the position, four angles of described edge trimming wheel profile (2) is provided with compensation projection (5).
2. automobile roof diel as claimed in claim 1, is characterized in that, described projection is water-drop-shaped projection (3), and water-drop-shaped projection (3) surface is arc-shaped surface.
3. automobile roof diel as claimed in claim 1 or 2, is characterized in that, described projection is provided with reinforcement (4) away from a side at punch (6) center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320261634.3U CN203484500U (en) | 2013-05-14 | 2013-05-14 | Skylight stamping die for top cover of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320261634.3U CN203484500U (en) | 2013-05-14 | 2013-05-14 | Skylight stamping die for top cover of automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203484500U true CN203484500U (en) | 2014-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320261634.3U Expired - Fee Related CN203484500U (en) | 2013-05-14 | 2013-05-14 | Skylight stamping die for top cover of automobile |
Country Status (1)
| Country | Link |
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| CN (1) | CN203484500U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110293171A (en) * | 2019-06-15 | 2019-10-01 | 柳州职业技术学院 | The Sheet Metal Forming Technology type face compensation method of automobile top cover with skylight |
| CN111687600A (en) * | 2020-06-09 | 2020-09-22 | 安徽江淮汽车集团股份有限公司 | Automobile top cover forming process method and automobile top cover |
| CN112676454A (en) * | 2020-12-09 | 2021-04-20 | 东风(武汉)实业有限公司 | Swing arm stamping process method and swing arm |
| CN114749553A (en) * | 2022-03-17 | 2022-07-15 | 中国第一汽车股份有限公司 | Technological method and compensation method for controlling contour dimension of top cover |
-
2013
- 2013-05-14 CN CN201320261634.3U patent/CN203484500U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110293171A (en) * | 2019-06-15 | 2019-10-01 | 柳州职业技术学院 | The Sheet Metal Forming Technology type face compensation method of automobile top cover with skylight |
| CN110293171B (en) * | 2019-06-15 | 2020-11-27 | 柳州职业技术学院 | Stamping process profile compensation method for automobile roof with skylight |
| CN111687600A (en) * | 2020-06-09 | 2020-09-22 | 安徽江淮汽车集团股份有限公司 | Automobile top cover forming process method and automobile top cover |
| CN111687600B (en) * | 2020-06-09 | 2021-07-30 | 安徽江淮汽车集团股份有限公司 | Automobile top cover forming process method and automobile top cover |
| CN112676454A (en) * | 2020-12-09 | 2021-04-20 | 东风(武汉)实业有限公司 | Swing arm stamping process method and swing arm |
| CN114749553A (en) * | 2022-03-17 | 2022-07-15 | 中国第一汽车股份有限公司 | Technological method and compensation method for controlling contour dimension of top cover |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 241009 Anhui city of Wuhu Province Silver Lake Economic and Technological Development Zone No. 22 North Road Patentee after: RAYHOO MOTOR DIES CO.,LTD. Address before: 241009 Anhui city of Wuhu Province Silver Lake Economic and Technological Development Zone No. 22 North Road Patentee before: RAYHOO MOTOR DIES Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140319 |