CN101209469A - Method for forming part drawing modeling with dent structure - Google Patents
Method for forming part drawing modeling with dent structure Download PDFInfo
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- CN101209469A CN101209469A CNA2006101673324A CN200610167332A CN101209469A CN 101209469 A CN101209469 A CN 101209469A CN A2006101673324 A CNA2006101673324 A CN A2006101673324A CN 200610167332 A CN200610167332 A CN 200610167332A CN 101209469 A CN101209469 A CN 101209469A
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Abstract
The invention relates to a molding method for drawing and molding a part with depressed structure. The molding method comprises the steps that: a panel is draw and molded, the draw and molded part comprises a depressed area (5) and a protruding area (6) located around the depressed area (5), and a material gathering bar (7) is formed in the depressed area (5); then the draw and molded part is die cut so as to die cut the material gathering bar (7). During the drawing and molding process of the molding method for drawing and molding the part with the depressed structure, as the gathering bar is formed in the depressed area of the part, so the flow of the material can be well controlled during the drawing process; therefore, material accumulation is hard to occur in the transitional part from the protruding area to the depressed area, thus avoiding the wrinkle and laminated material on the surface of the part after drawing molding, enhancing the molding quality of the parts and reducing the defective rate.
Description
Technical field
The present invention relates to the part forming method, more particularly, relate to a kind of drawing modeling and have sunk structure, be i.e. low high part forming method on every side in the middle of the drawing modeling.
Background technology
Sheet Metal Forming Technology is widely used in auto manufacturing in recent years, and many coverings and inner plate in the vehicle all utilize the mould drawing.Usually, complicated parts generally all needs just can finish shaping through drawing modeling, deburring, flange, shaping or the like multistep operation.Yet some part is owing to the restriction of shape, structure in the actual production, and after through the draw forming operation, undesirable condition will appear in the product surface, therefore will cause end product quality to reduce, even waste product occur.
For example, the drawing modeling 1 of a kind of part shown in Fig. 1, it has sunk structure, and is high around the centre is low, promptly has depressed part 2 and is positioned at depressed part 2 protuberance 3 on every side.This drawing modeling is because whole shape mask has certain height poor, so in the draw forming process, flowing of material can not be well controlled, to the part of depressed part 2 transition poly-material is appearring easily from protuberance 3, wrinkling and folded material phenomenon appears in the product surface after therefore will causing drawing, thereby have a strong impact on final part forming quality, increase defect rate.
Summary of the invention
The purpose of this invention is to provide and a kind ofly can improve the part forming quality, thereby the drawing modeling that reduces the back part defect rate that is shaped has the part forming method of sunk structure.
Drawing modeling provided by the invention has the part forming method of sunk structure, wherein, described method comprises carries out drawing modeling to plate, and wherein the product behind the drawing modeling comprises the depressed area and is positioned at described depressed area protruding segments on every side, and is formed with the suction muscle in the described depressed area; Afterwards the product behind the described drawing modeling is carried out die-cut, so that described suction muscle is cut.
The beneficial effect that drawing modeling provided by the invention has the part forming method of sunk structure is, because when drawing modeling, in the depressed area of product, formed the suction muscle, so in drawing process, flowing of material will be well controlled, therefore be not easy to occur poly-material from protruding segments to the part of depressed area transition, thereby avoiding the product surface behind the draw forming wrinkling and folded material phenomenon to occur.And, because the position at described suction muscle place is a garbage area, after die-cut operation in can be punched fall, so can not produce any influence, but also improve the part forming quality the shape of final products, reduced defect rate.And, when the depression direction of described suction muscle being arranged to its bending direction and depressed area is consistent, can prevent more effectively that wrinkling and folded material from appearring in the product surface.
Description of drawings
Fig. 1 is a kind of schematic cross-section of drawing modeling of the part with sunk structure;
Fig. 2 is the schematic cross-section of the drawing modeling of the part with sunk structure provided by the invention;
Fig. 3 is the schematic cross-section of the drawing modeling of the part with sunk structure provided by the invention;
Fig. 4 is the floor map of the drawing modeling of the part with sunk structure provided by the invention.
The specific embodiment
Below, in conjunction with the accompanying drawings, the part forming method that drawing modeling provided by the invention is had sunk structure is described in detail.
The part forming method that drawing modeling provided by the invention has sunk structure comprises: plate is carried out drawing modeling, wherein the product behind the drawing modeling comprises depressed area 5 and is positioned at described depressed area 5 protruding segments 6 on every side, and is formed with suction muscle 7 in the described depressed area 5; Afterwards the product behind the described drawing modeling is carried out die-cut, so that described suction muscle 7 is cut.
Because the drawing modeling of the part that the present invention was suitable for has sunk structure, high around the centre is low as shown in Figure 1, promptly have depressed part 2 and be positioned at depressed part 2 protuberance 3 on every side.So when plate is carried out drawing modeling, it need be molded into corresponding shape, promptly shown in Fig. 2 and 3, the product behind the drawing modeling comprises depressed area 5 and is positioned at described depressed area 5 protruding segments 6 on every side.And, in described depressed area 5, be formed with suction muscle 7, as shown in Figure 4.In the process of drawing, because suction muscle 7 can be controlled flowing of material, absorb unnecessary material, therefore be not easy to occur poly-material to the part of depressed area 5 transition, thereby avoiding the product surface behind the drawing modeling wrinkling and folded material phenomenon to occur from protruding segments 6.
Because the position at described suction muscle 7 places is a garbage area, thus also need to be provided with subsequent handling, so that this suction muscle 7 and peripheral region thereof the shape need according to part is cut.Therefore described suction muscle is set can't produce any influence to the shape of final products, but also has avoided the product surface wrinkling and folded material phenomenon to occur, has improved the forming parts quality, has reduced defect rate.
The bending direction of described suction muscle 7 can be opposite with the depression direction of described depressed area 5, as shown in Figure 2, and also can be consistent with the depression direction of described depressed area 5, as shown in Figure 3.
Bending direction at suction muscle 7 shown in Figure 2 is opposite with the depression direction of depressed area 5, promptly under the situation of suction muscle 7 epireliefs, has three a, b, c on the product at high, has formed the cross sectional shape that is roughly the W type.Therefore between height point a and b and high some c and b, two recess parts have been formed, the material of these two recess parts was in state more freely before being drawn into the end, therefore original just many material, and along with the continuation of drawing process, also surface current is moving inwards for the material of outside, so the many especially material of these two recess parts.Therefore the suction muscle of this epirelief only could absorb the unnecessary material of a part when drawing fast end.
Bending direction at suction muscle 7 shown in Figure 3 is consistent with the depression direction of depressed area 5, promptly under the recessed situation of suction muscle 7, has two d, f and a low spot e on the product at high, has formed the cross sectional shape that is roughly the type of falling A.So just avoided two recess parts occurring in the situation shown in Figure 2, therefore in the process of drawing, the material of depressed part will flow downward all the time, and distortion of materials is in the tensile stress state.Thereby this recessed suction muscle can better control flowing of material in the draw forming process, better plays the effect of suction, and then more effectively avoids the product surface wrinkling and folded material phenomenon to occur, improved the surface quality of product.
Therefore, under the preferable case, the bending direction of described suction muscle 7 is consistent with the depression direction of described depressed area 5.
Generally, described suction muscle 7 can have various shape of cross section as required, as circular arc, rectangle etc., is preferably circular arc.
In addition, known as those skilled in the art, the drawing modeling and die-cut operation that the moulding of described part is mentioned, according to the shape need of concrete part, can also comprise some other operation, as punching, deburring, flange, shaping or the like in comprising the present invention.And the front and back of these operations order also can be arranged according to specific circumstances.
Claims (3)
1. a drawing modeling has the part forming method of sunk structure, it is characterized in that, described method comprises carries out drawing modeling to plate, wherein the product behind the drawing modeling comprises depressed area (5) and is positioned at described depressed area (5) protruding segments (6) on every side, and is formed with suction muscle (7) in described depressed area (5); Afterwards the product behind the described drawing modeling is carried out die-cutly, described suction muscle (7) is cut.
2. drawing modeling according to claim 1 has the part forming method of sunk structure, and wherein, the bending direction of described suction muscle (7) is consistent with the depression direction of described depressed area (5).
3. drawing modeling according to claim 1 has the part forming method of sunk structure, and wherein, the shape of cross section of described suction muscle (7) is a circular arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101673324A CN101209469A (en) | 2006-12-27 | 2006-12-27 | Method for forming part drawing modeling with dent structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101673324A CN101209469A (en) | 2006-12-27 | 2006-12-27 | Method for forming part drawing modeling with dent structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101209469A true CN101209469A (en) | 2008-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006101673324A Pending CN101209469A (en) | 2006-12-27 | 2006-12-27 | Method for forming part drawing modeling with dent structure |
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| CN (1) | CN101209469A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105396928A (en) * | 2014-09-09 | 2016-03-16 | 本田技研工业株式会社 | Press drawing method |
| CN106650051A (en) * | 2016-12-06 | 2017-05-10 | 阿尔特汽车技术股份有限公司 | Reverse material adding process of drawing die |
| CN109967611A (en) * | 2017-12-28 | 2019-07-05 | 上海众大汽车配件有限公司 | A kind of automobile storage battery panel Safety mold |
| 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 |
| CN112916707A (en) * | 2019-11-20 | 2021-06-08 | 上海赛科利汽车模具技术应用有限公司 | Part forming method for preventing vertical surface of stretching model from cracking and wrinkling |
| CN113441617A (en) * | 2021-06-10 | 2021-09-28 | 东风柳州汽车有限公司 | Oil filler seat and stamping method thereof |
-
2006
- 2006-12-27 CN CNA2006101673324A patent/CN101209469A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105396928A (en) * | 2014-09-09 | 2016-03-16 | 本田技研工业株式会社 | Press drawing method |
| CN106650051A (en) * | 2016-12-06 | 2017-05-10 | 阿尔特汽车技术股份有限公司 | Reverse material adding process of drawing die |
| CN109967611A (en) * | 2017-12-28 | 2019-07-05 | 上海众大汽车配件有限公司 | A kind of automobile storage battery panel Safety mold |
| CN109967611B (en) * | 2017-12-28 | 2023-10-20 | 上海众大汽车配件有限公司 | Safety mould for automobile storage battery panel |
| 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 |
| CN112916707A (en) * | 2019-11-20 | 2021-06-08 | 上海赛科利汽车模具技术应用有限公司 | Part forming method for preventing vertical surface of stretching model from cracking and wrinkling |
| CN113441617A (en) * | 2021-06-10 | 2021-09-28 | 东风柳州汽车有限公司 | Oil filler seat and stamping method thereof |
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Open date: 20080702 |