CN103624144B - Automobile front floor sill strip shaping punching compression technology - Google Patents
Automobile front floor sill strip shaping punching compression technology Download PDFInfo
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- CN103624144B CN103624144B CN201310594190.XA CN201310594190A CN103624144B CN 103624144 B CN103624144 B CN 103624144B CN 201310594190 A CN201310594190 A CN 201310594190A CN 103624144 B CN103624144 B CN 103624144B
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- flange
- sill strip
- shaping
- front floor
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Abstract
The invention discloses a kind of automobile front floor sill strip shaping punching compression technology, comprise the steps: 1) blanking: carry out blanking by the size of front floor sill strip, and reserve in the inner side of the one-sided material in blank front end symmetrical to rim charge; 2) flange is shaping: carry out symmetrical flange to blank both sides simultaneously, wherein, and the one-sided material of blank front end and symmetrical flange is formed to rim charge; 3) deburring: excising rim charge after flange is shaping, forms notched front floor, front end sill strip.The invention enables part stress equalization in flange forming process, avoid the one-sided stressed part skew caused, improve the machining accuracy of the part with one-sided flange, part is met the demands in shape and size, improve the stability of product quality.
Description
Technical field
The present invention relates to Machining Technology, refer to a kind of automobile front floor sill strip shaping punching compression technology particularly.
Background technology
Sill strip is the important component part of automobile body-in-white, connect gusset and floor, to reduction body distortion important role in side impact process, its section is generally in " several " font, wherein, its leading inside and environment part lap-joint are designed to be with one-sided flange form jaggy by front floor sill strip usually, the conventional molding process of front floor sill strip is first by part net shape blanking, one little section of one-sided material is formed in front end, then the shaping punching press of flange, this Sheet Metal Forming Technology forms the situation of only carrying out flange in independent side in the front end of part, part front end is one-sided stressed, under the effect of this unbalanced force, part is easily towards the skew of one-sided flange place, make front floor sill strip particularly cannot meet shape of product and tolerance in its front end place, cause part quality unstable.
Summary of the invention
Object of the present invention will provide a kind of automobile front floor sill strip shaping punching compression technology exactly, process avoids accessory size skew, improves part processing precision.
For achieving the above object, the technical solution used in the present invention is: a kind of automobile front floor sill strip shaping punching compression technology, comprises the steps:
1) blanking: carry out blanking by the size of front floor sill strip, and reserve symmetrical to rim charge in the inner side of the one-sided material in blank front end;
2) flange is shaping: carry out symmetrical flange to blank both sides simultaneously, wherein, and the one-sided material of blank front end and symmetrical flange is formed to rim charge;
3) deburring: excising rim charge after flange is shaping, forms notched front floor, front end sill strip.
Further, described step 2) in, after completing symmetrical flange, wedge shaping is carried out to two side flangings simultaneously.
The present invention holds in the sill strip process of notched front floor before processing, by the symmetrical side of one-sided for part front end material being reserved rim charge in blanking operation, then at one-sided material with to carry out flange to rim charge place shaping simultaneously, make two side flanging shape almost symmetries, last in trimming process step content by shaping the excising rim charge of flange, and the one-sided flange of remainder is repaiied be cut into required size, to reach final products requirement; The invention enables part stress equalization in flange forming process, avoid the one-sided stressed part skew caused, improve the machining accuracy of the part with one-sided flange, part is met the demands in shape and size, improve the stability of product quality.
Accompanying drawing explanation
Fig. 1 is the structural representation of the left sill strip in front floor.
Fig. 2 is the partial enlargement structural representation at Fig. 1 front end place.
Fig. 3 is blank shape schematic diagram in blanking and punching operation.
Fig. 4 is blank shape schematic diagram in flange molding procedure.
Fig. 5 is the section configuration schematic diagram of Fig. 4.
Fig. 6 is the section configuration schematic diagram of blank in wedge trimming.
Fig. 7 is punching side blow trimming process step schematic diagram.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in further detail, is convenient to more clearly understand the present invention, but they do not form restriction to the present invention.
Embodiment 1
Fig. 1, Figure 2 shows that the left sill strip 1 in the front floor of east wind passenger car, and the front end of the left sill strip 1 in this front floor is band one-sided flange 2 jaggy, and its shaping punching compression technology comprises the following steps:
1) blanking and punching: as shown in Figure 3, during blanking, carry out blanking by the size of front floor sill strip 1, and reserve in the inside region of the one-sided material 4 in blank 3 front end symmetrical to rim charge 5, that is: compensate a part of material, be convenient to subsequent handling and carry out symmetrical flanging forming herein;
2) flange is shaping: as Fig. 4, shown in Fig. 5, symmetrical flange is carried out to blank both sides simultaneously, complete the main body processing content of the left sill strip 1 in front floor, wherein, the one-sided material of blank front end and symmetrical flange is formed to rim charge, that is: the flange shaping work content of symmetrical side is increased at the shaping place of one-sided flange, ensure that flange is shaping simultaneously in the compensation place left and right sides, producing balanced forces, offsets side-play amount.
3) wedge shaping: as shown in Figure 6, wedge trimming is the flange profile angle requirement failing to realize to realize flange molding procedure, after completing symmetrical flange, wedge shaping is carried out to two side flangings simultaneously, to reach the flange profile angle requirement of the left sill strip 1 in front floor, wherein, also symmetrical wedge shaping is carried out together to rim charge place.
4) punching side blow deburring: as shown in Figure 7, excising rim charge 5 after flange is shaping, forms notched front floor, front end sill strip 1, and what pare off pre-compensation above is realize product net shape size to ensure to rim charge 5.
The left sill strip of the right sill strip in front floor and front floor is symmetrical structure, and the structure of its front end is consistent, and therefore the inventive method is equally applicable to the right sill strip in front floor.The present invention is a kind of Sheet Metal Forming Technology preventing cold stamping part from causing size offset in process of production because friction stree is unbalanced, this process increases part processing precision, ensure that the stability of part quality.
Claims (1)
1. an automobile front floor sill strip shaping punching compression technology, comprises the steps:
1) blanking: carry out blanking by the size of front floor sill strip, and reserve symmetrical to rim charge in the inner side of the one-sided material in blank front end;
2) flange is shaping: carry out symmetrical flange to blank both sides simultaneously, wherein, and the one-sided material of blank front end and symmetrical flange is formed to rim charge; After completing symmetrical flange, wedge shaping is carried out to two side flangings simultaneously;
3) deburring: excising rim charge after flange is shaping, forms notched front floor, front end sill strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310594190.XA CN103624144B (en) | 2013-11-21 | 2013-11-21 | Automobile front floor sill strip shaping punching compression technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310594190.XA CN103624144B (en) | 2013-11-21 | 2013-11-21 | Automobile front floor sill strip shaping punching compression technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103624144A CN103624144A (en) | 2014-03-12 |
| CN103624144B true CN103624144B (en) | 2015-09-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310594190.XA Active CN103624144B (en) | 2013-11-21 | 2013-11-21 | Automobile front floor sill strip shaping punching compression technology |
Country Status (1)
| Country | Link |
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| CN (1) | CN103624144B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106513500B (en) * | 2016-11-18 | 2018-05-08 | 安徽江淮汽车集团股份有限公司 | A kind of MPV vehicles cross-beam connecting plate punch forming process and Trimming Die |
| CN112139352A (en) * | 2020-08-20 | 2020-12-29 | 一汽奔腾轿车有限公司 | Stamping process of automobile front floor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001321845A (en) * | 2000-05-18 | 2001-11-20 | Mitsubishi Motors Corp | Reinforcing member and vehicle structure using reinforcing member |
| JP2002282981A (en) * | 2001-03-21 | 2002-10-02 | Honda Motor Co Ltd | Manufacturing method for panel member for automobile |
| CN1642804A (en) * | 2002-04-05 | 2005-07-20 | 莲花汽车有限公司 | A method of manufacture of an automobile structure and an automobile structure made by the method |
| CN101952066A (en) * | 2007-12-20 | 2011-01-19 | 株式会社神户制钢所 | Process for producing shaped components from high-strength and ultra high-strength steels |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6505564B2 (en) * | 2001-05-23 | 2003-01-14 | National Steel Car Limited | Well car with cross member |
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2013
- 2013-11-21 CN CN201310594190.XA patent/CN103624144B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001321845A (en) * | 2000-05-18 | 2001-11-20 | Mitsubishi Motors Corp | Reinforcing member and vehicle structure using reinforcing member |
| JP2002282981A (en) * | 2001-03-21 | 2002-10-02 | Honda Motor Co Ltd | Manufacturing method for panel member for automobile |
| CN1642804A (en) * | 2002-04-05 | 2005-07-20 | 莲花汽车有限公司 | A method of manufacture of an automobile structure and an automobile structure made by the method |
| CN101952066A (en) * | 2007-12-20 | 2011-01-19 | 株式会社神户制钢所 | Process for producing shaped components from high-strength and ultra high-strength steels |
Non-Patent Citations (1)
| Title |
|---|
| 郑展等.级进模.《冷冲模具设计与应用实例(第1版)》.机械工业出版社,2012,第310-312页. * |
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| CN103624144A (en) | 2014-03-12 |
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