A wheel rim inner support type spinning machine

Abstract

The invention provides a rim inner support type spinning machine and belongs to the technical field of rim moulding. The prior art has the defects that an internal mould can not be automatically reset and an external mould is poor in locking effect. The rim inner support type spinning machine provided by the invention is characterized in that more than one reset spring used for resetting the original position of the internal mould is horizontally arranged on the cylindrical surface of a rotating shaft at the upper part, and the reset spring is circular and circled at the periphery of the rotating shaft and surrounds the internal mould inside; and an indent locking groove is formed in the locking surface of the external mould at one side in the positioning device, a convex locking part is arranged on the corresponding locking surface of the external mould at the other side, and shapes and positions of the locking groove and the locking convex part are in fit accordingly. The rim inner support type spinning machine provided by the invention has the advantages of high automation degree, simple structure, stable stationary fit of all the devices, high product yield and the like.

Description

technical field [0001] The invention belongs to the technical field of rim forming, in particular to a rim inner support type 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 inne...

AI Technical Summary

Problems solved by technology

Due to manufacturing errors or technological level, the sliding accuracy of the slider on the slideway or slider is not high. The extrusion force generated by the outer mold when the rolling ring is formed will cause the displacement of the outer mold in the front, rear, left, and right directions, resulting in It cannot be completely in a self-locking state, which has a great impact on the forming process of the steel ring rolling ring, which may cause irregular forming of the steel ring, serious direct rolling failure, and affect production efficiency

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