Upsetting and lower-ejection blind hole punching device

Abstract

The invention discloses an upsetting and lower-ejection blind hole punching device. The upsetting and lower-ejection blind hole punching device is capable of carrying out upsetting working and blind hole punching working on a forged piece simultaneously, and comprises a press machine punch pin installed on the upper part of a press machine, wherein a press machine workbench is arranged below the press machine punch pin; a longitudinally-formed central hole is formed in the central part of the press machine workbench; a lower punch pin capable of moving in the up-down direction of the central hole is arranged in the central hole in a matching manner; the lower end of the lower punch pin is fixedly connected with an upper end head of a piston rod; the lower end of a hydraulic cylinder matched with the piston rod is fixedly connected with a seat of the press machine; and the hydraulic cylinder is connected with a hydraulic control mechanism. Compared with the prior art, the device has theadvantages of saving the time and labor, increasing the working efficiency, avoiding intermediate heating, and saving the energy.

Description

technical field [0001] The invention relates to a forging processing device, in particular to an upsetting and blind hole punching device, which is mainly used for forging of bearing rings. Background technique [0002] At present, the forging process of the bearing ring includes upsetting, that is, heating a certain length of cylindrical blank, and then placing it on the worktable of the press. With a certain temperature blank, its outer diameter becomes thicker. After upsetting, transfer to the next station to punch blind holes. After the blind hole is punched, the non-hole part is cut off to form an annular bearing ring blank. For large bearing rings, it is very difficult to move from an upsetting station to a blind hole punching station, which takes time and effort. When reaching the blind hole punching station, its temperature drops significantly, resulting in the temperature required for blind hole punching not being reached. Often additional heating is required. T...

AI Technical Summary

Problems solved by technology

For large bearing rings, it is very difficult to move from an upsetting station to a blind hole punching station, which takes time and effort. When reaching the blind hole punching station, its temperature drops significantly, resulting in the temperature required for blind hole punching not being reached. Often requires additional heating

This method is not only time-consuming and labor-intensive, but also has low work efficiency and wastes energy.

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