metal twisting device

Abstract

The invention provides a metal twisting and bending device. The device comprises a cylindrical fixing column which is vertically assembled, wherein a rotating rod is assembled to the upper part of thefixing column and can rotate around an axis of the fixing column; a limiting column which is at the same height as the fixing column is connected to the lower part of the rotating rod; a horizontal discharging rail is assembled at one side of the fixing column; a workpiece to be processed is assembled on the discharging rail in a sliding manner; a cylindrical fixing mounting chamber is processedin the fixing column; a cam which can rotate relative to the axis of the fixing column is assembled in the fixing mounting chamber; a horizontal cylindrical fixing sliding hole is processed in the annular wall of the fixing column and passes though the inside and the outside; a knocking block is assembled into the fixing sliding hole in a sliding manner. When the device performs bending, the inside, subjected to stress concentration, of the workpiece in twisting and bending is knocked through the knocked block, and thus the stress in the workpiece bending part can be released.

Description

technical field [0001] The invention belongs to the technical field of processing equipment, and in particular relates to a metal twisting and bending device. Background technique [0002] Twisting and bending equipment is a processing equipment often used in mechanical production. Twisting and bending equipment is usually used to twist and bend metal materials. And if it is some tubular metal materials with larger thickness or diameter, usually the metal material will be bent into arc corners during bending. During the twisting process of the metal material, due to the extrusion deformation of the inner corner surface and the stretching deformation of the outer corner surface, the metal material forms a twisted structure, but the metal material may be in the process of extrusion and stretching. Internal stress is formed, and these stresses accumulate on the corner surface of the twisted metal material, which not only makes these twisted parts prone to cracks during the twi...

AI Technical Summary

Problems solved by technology

In the process of twisting and bending, the metal material forms a twisted structure due to the extrusion deformation of the inner corner surface and the tensile deformation of the outer corner surface, but the metal material may be in the process of extrusion and stretching. Internal stress is formed, and these stresses are accumulated on the corner surface of the twisted metal material, which not only makes these twisted parts prone to cracks during the twisting process, but also once there is stress inside these twisted workpieces, once these twisted workpieces encounter a collision Cracks can detonate stress causing irreparable damage to the torsion

Especially for some bent pipe parts that need to contain high-pressure liquid, once cracks appear, the whole bent pipe part cannot be used

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