Rib punching device for piston cylinder

A piston cylinder and punching rib technology is applied in the field of machining, which can solve the problems of difficult workpiece processing, high rejection rate, and difficulty in ensuring the dimensional tolerance of the outer diameter of the piston cylinder, so as to reduce the rejection rate, improve production efficiency, and ensure the outer diameter. The effect of dimensional tolerances

Inactive Publication Date: 2015-03-18
TIANJIN YUANDE AUTO PARTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The piston cylinder used for the rear shock absorber of a motor vehicle is made of No. 10 fine-rolled pipe. The requirements for the outer diameter of the piston cylinder are relative

Method used

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  • Rib punching device for piston cylinder
  • Rib punching device for piston cylinder
  • Rib punching device for piston cylinder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0017] Such as figure 1 Shown is the schematic structural view of the upper mold assembly and the lower mold assembly of the piston cylinder punching rib mold. The upper mold assembly includes an upper template 2, and a punch fixing plate 4 is fixed below the upper template 2, and the punch fixing plate 4 is fixed with a punch 5; the periphery of the punch 5 is provided with a locking sleeve 8, and the upper template 2 is provided with a compression rod 3 connected with the locking sleeve 8, and the compression rod 3 The outer circumference is covered with a compression spring 7.

[0018] Such as figure 2 As shown, the lower mold assembly includes a lower template 9, and the top of the lower template 9 is sequentially fixed with a die fixing plate 10; the top of the die fixing plate 10 is provided with a die 13, so Described die 13 is provided with the slit that can stretch out rib; The outer edge of described die 13 is respectively provided with outer positioning plate 11 ...

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PUM

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Abstract

The invention discloses a rib punching device for a piston cylinder. The rib punching device comprises an upper die assembly and a lower die assembly, wherein the lower die assembly comprises a lower die plate, and female die fixing plates are sequentially fixed above of the lower die plate from bottom to top; a female die is arranged above the female die fixing plates, and a gap which is used for enabling a rib to be expanded out is formed in the female die; the outer edge of the female die is respectively provided with an outer positioning plate and an inner positioning plate from bottom to top; the periphery of the female die is provided with locking blocks which are matched with locking sleeves, the tail parts of the locking blocks are connected with spring fixing devices, and the bottom parts of the spring fixing devices are fixedly connected with the outer positioning plate; the spring fixing devices are connected with extension springs. Compared with the prior art, the rib punching device for the piston cylinder, disclosed by the invention, has the advantages that the size tolerance of the outer diameter of the piston cylinder is ensured, the rejection rate is greatly reduced, and the production efficiency is also increased.

Description

technical field [0001] The invention relates to the technical field of mechanical processing, in particular to a piston cylinder punching rib device. Background technique [0002] The piston cylinder used for the rear shock absorber of a motor vehicle is made of No. 10 fine-rolled pipe, and the outer diameter of the piston cylinder is required to be relatively high. It is difficult to guarantee the tolerance of the outer diameter of the piston cylinder during processing, which leads to the processing of the workpiece It is more difficult and the scrap rate is higher. [0003] The device is a rib punching die for the piston cylinder, and the process is difficult to process. That is, the device not only ensures the tolerance of the outer diameter of the piston cylinder, greatly reduces the scrap rate, but also improves the production efficiency. Contents of the invention [0004] The object of the present invention is to aim at the technical defects existing in the prior ar...

Claims

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Application Information

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IPC IPC(8): B21D37/10
CPCB21D37/10
Inventor 杨原
Owner TIANJIN YUANDE AUTO PARTS
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