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Molding die for processing high-tension plate parts

A molding die and high tension technology, applied in the stamping field of automobile structural parts, can solve the problems of insufficient plastic deformation molding, difficult molding of high tension plate parts, warping of flange edges, etc., to achieve simple manufacturing process and low maintenance cost. , the effect of sufficient blank holder force

Active Publication Date: 2014-02-05
CHERY AUTOMOBILE CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0012] The present invention designs a forming mold for processing high-tension plate parts, which solves the problems of difficult forming of high-tension plate parts, insufficient plastic deformation during forming, and warping and wrinkling of flange edges of formed parts

Method used

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  • Molding die for processing high-tension plate parts
  • Molding die for processing high-tension plate parts
  • Molding die for processing high-tension plate parts

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Embodiment Construction

[0036] Below in conjunction with accompanying drawing, the present invention will be further described:

[0037] image 3 and Figure 4 It shows a structural schematic diagram of a molding die for processing high-tensile plate parts, including an upper die base 11, a pressing core 13, an upper die fixing plate 14, a lower die base 15, a punch 17, a pressing plate 18 and an upper die block 19. The upper mold fixing plate 14 is arranged between the upper mold base 11 and the upper mold knife block 19 , and the pressing core 13 passes through the upper mold fixing plate 14 . At least one first nitrogen gas spring 12 is arranged between the pressing core 13 and the upper die base 11 , and the pressing core 13 can move vertically relative to the upper die fixing plate 14 under the action of the first nitrogen gas spring 12 . At least two second nitrogen gas springs 16 are arranged between the binder plate 18 and the lower mold base 15, and at least two second nitrogen gas springs...

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Abstract

The invention relates to a molding die for processing high-tension plate parts, which comprises an upper die seat (11), a material press core (13), an upper die fixing plate (14), a lower die seat (15), a convex die (17), a material press plate (18) and an upper die knife block (19), wherein the upper die fixing plate (14) is arranged between the upper die seat (11) and the upper die knife block (19), at least one nitrogen spring (12) is arranged between the material press core (3) and the upper die seat (11), at least two nitrogen springs (16) are arranged between the material press plate (18) and the lower die seat (15), a locking unit (21) is manufactured on the material press plate (18) and the upper die knife block (19), a material plate (20) locked between the material press core (13) and the locking unit (21) in molding can be fully stretched for plastic deformation, and the large springback amount after molding is overcome.

Description

technical field [0001] The invention belongs to the stamping technical field of automobile structural parts, and relates to a cold stamping die structure in the field, more specifically, the invention relates to a forming die for processing high-tensile plate parts. Background technique [0002] At present, in order to reduce automobile exhaust emissions and improve the collision safety performance of automobiles, automobile design strives to reduce the weight of various parts of automobiles as much as possible while ensuring automobile safety. In view of this, the use of high-tensile materials will become the trend of automotive materials. [0003] According to the international research on ultra-light steel automobiles (ULSAB-AVC), steel plates with a yield strength in the range of 210-550N / mm2 are called high-strength steel plates, that is, high-tensile materials; steel plates with a yield strength greater than 550N / mm2 are called Ultra-high strength steel plate. Accord...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D37/10
Inventor 沈左军谢伟刘丽莉
Owner CHERY AUTOMOBILE CO LTD
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