Rib punching device for piston cylinder

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...

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 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 Difficulty, high scrap rate

Images