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Forming die with shape-variable male die applying radial thrust by solid particle medium

A solid particle, radial thrust technology, applied in the field of stamping dies, can solve the problems of inability to change the shape of the punch, no radial thrust, etc., and achieve the effects of variable shape, uniform force and extended service life.

Inactive Publication Date: 2010-10-27
CHONGQING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the problem that the existing mold cannot change the shape of the punch and the ordinary forming mold has no radial thrust and the sealing problem of the deep drawing mold with radial hydraulic pressure is difficult to solve, and provides a punch with variable shape and variable amount of solid particles Die, so as to realize variable shape punch, provide radial thrust, solve sealing problem

Method used

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  • Forming die with shape-variable male die applying radial thrust by solid particle medium
  • Forming die with shape-variable male die applying radial thrust by solid particle medium

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Embodiment Construction

[0011] see figure 1 , shown as a variable-shape punch forming die with solid particle medium plus radial thrust, including shaped solid particles 10, die 4, blank holder 6, sealing plate 1, top plate 2, and radial solid particles 3 , Blank 5, lower die base 7, ejector pin 8, briquetting block 9, nitrogen cylinder 11, radial closed space 12, forming closed space 13. The die 4 is installed on the inner slider, the die 4 is movable, the blank holder 6 is arranged under the die 4, the blank 5 is formed in the cavity of the die 4; the lower end of the pressing block 9 is in contact with the lower mold base 7, Be installed on the lower mold base 7. The nitrogen cylinder 11 is also installed on the lower mold base 7, the working end of the nitrogen cylinder 11 passes through the blank holder 6, and withstands the lower surface of the top plate 2 located in the counterbore of the blank holder 6 or is connected with the top plate 2, the nitrogen cylinder 11 Push the top plate 2 to mo...

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Abstract

The invention relates to a forming die with a shape-variable male die applying a radial thrust by a solid particle medium, which comprises a female die, forming solid particles, a clamping ring, a die holder, an ejector pin, a blank, a pressing block, a seal plate, a top plate, radial solid particles, a nitrogen cylinder and the like, wherein the seal plate is installed on the clamping ring, the seal plate, the female die, the clamping ring, the top plate and the blank form a radial closed space in the forming process, and the radial solid particles are arranged in the radial closed space; the pressing block, the blank and the clamping ring form a forming closed space in the forming process, and the forming solid particles are arranged in the forming closed space to be used as the male die. By combining the shape-variable male die and the thrust increased by the radial solid particle medium, the die has a simple structure, the radial thrust can be transferred from the nitrogen cylinder through the solid particle medium to the sheet bar, and the radial thrust and the forming operation can be reliably realized without pollution. Compared with the common forming die, the invention is easier for forming, and the forming quality of the product is obviously improved.

Description

technical field [0001] The invention belongs to stamping die technology, and specifically relates to a variable-shape punch forming die through solid particle medium plus radial thrust, which is mainly aimed at variable-shape punch while providing radial thrust. technical background [0002] Ordinary forming dies have no radial thrust, and the forming is completed by the punch driving the sheet and pulling it toward the die. For drawing dies with radial hydraulic pressure, the radial thrust is realized by hydraulic pressure, and the sealing problem is difficult to solve. [0003] The current stamping die, the ordinary die is made of steel die, and the shape of the punch is unchanged during the drawing process. This kind of mold is prone to uneven stress and cracking during the deep drawing process, and the mold is prone to wear and tear, which reduces the service life of the mold and increases production costs. The sealing problem of the hydraulic deep drawing die cannot b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D37/10B21D22/10
Inventor 李小平彭成允胡建军夏华吴善友张侠
Owner CHONGQING UNIV OF TECH
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