An inner support type wheel rim spinning machine

Abstract

The invention belongs to the technical field of rim forming and particularly relates to an inner support type rim rotary extrusion machine. In the prior art, an inner die is in contact with a piston capable of pushing the inner die to move in the radial direction instead of being fixedly connected with the piston, although the piston can reset, the piston cannot drive the inner die to reset and retreat actively, after rotary extrusion is finished, the inner die needs to be pushed back to the original position manually for the next time of rotary extrusion operation, in this way, the automation degree of production operation is not high, if a worker pushes the inner die before a rotary drum is completely stopped, potential safety hazards are prone to happening, and accordingly production accidents are caused. According to the inner support type rim rotary extrusion machine provided by the invention, one or more reset springs used for making the inner die reset to the original position are horizontally arranged on the cylindrical face of an upper rotary shaft, and each reset spring is annular, surrounds the rotary shaft and wraps the inner die. The inner support type rim rotary extrusion machine has the advantages that the inner die can reset automatically, operation steps and potential safety hazards are reduced, and safety and reliability are achieved.

Description

technical field [0001] The invention belongs to the technical field of rim forming, in particular to an inner support type rim spinning machine. Background technique [0002] Before the wheel rim is formed, the steel plate is cut into strips, and after rolling, butt welding, and flattening the weld seam, the rim blank ring is made, and the blank ring is put into the rim spinning machine for spinning forming. In the existing wheel rim forming process, the methods adopted include external pressure type and internal support type. The difference is that the outer mold or inner mold is fixed, and the rotation of the inner mold or outer mold is used to plastically transform the blank ring. This patent refers to the inner support type rim spinning machine. The blank ring is placed on the upper part of the rotating drum of the rotating mechanism, and the self-locking positioning device is activated to fix the blank ring. The blank ring is passed through the control device by the inn...

AI Technical Summary

Problems solved by technology

During work, the inner mold and the piston are only in contact and are not fixedly connected. Although the piston can be reset, it cannot drive the inner mold to actively reset and retreat. It is necessary to manually push the inner mold back to its original position after spinning, and wait for the next Spinning operation, so the degree of automation of the production operation is not high, and if the worker pushes the inner mold before the drum stops completely, it will easily cause safety hazards and cause production accidents

Images