Method for machining elastic expansion ring workpiece

Abstract

The invention relates to the field of machining, in particular to a method for machining an elastic expansion ring workpiece. The method comprises the following steps of rough turning: roughly turning various portions, machining an excircle of a left end at the position of 4mm until the size of the excircle meets requirements, and performing follow-up machining on a pressure table under the condition that the allowance of rest portions is 2mm-3mm; heat treatment: performing tempering by 225-285HB under the conditions that tissues are uniform and crystalline grains are refined, and eliminating stress; finish turning: performing finish turning on the various portions, turning an excircle of the left end at the position of 4mm until the size of the excircle meets requirements so that the excircle has a clamping effect when an inner hole is formed, turning an excircle of a right end under the condition that the grinding allowance of the excircle of the right end is 0.6mm-0.8mm until the size of the excircle of the right end is suitable, forming the inner hole under the condition that the allowance of the inner hole is 0.5mm-0.6mm, clearing a root groove, forming a taper hole under the condition that the grinding allowance of the taper hole is 0.6mm-0.8mm and the length allowance is 0.8mm-1.2mm, and placing the rest part on the left end at the position of 4mm; and lineation: drawing holes and grooved lines. By the method for machining the elastic expansion ring workpiece, potential quality hazards caused by the original machining technology and the original operation method are avoided, quenching deformation, machining stress deformation and clamping deformation can be eliminated well, and the machining quality of parts is guaranteed.

Description

technical field [0001] The invention relates to the field of mechanical processing, in particular to a processing method for an elastic expansion ring workpiece. Background technique [0002] There are many varieties of elastic expansion rings, which are mainly used to process middle-body tubes, middle barrels and other parts of various military products, and their manufacturing quality directly affects the processing quality and performance of subsequent products. The elastic expansion ring is a thin-walled multi-notch part. During the cold / hot joining process, due to various stresses and improper clamping of the workpiece, the processing deformation of the elastic expansion ring is serious, and the scrap rate is as high as 70% to 80%. . Manufacturers often adopt the "five guarantees and one" production method, resulting in large economic losses. Contents of the invention [0003] In order to solve the above problems, the present invention provides a method that solves ...

AI Technical Summary

Problems solved by technology

The elastic expansion ring is a thin-walled multi-notch part. During the cold / hot joining process, due to various stresses and improper clamping of the workpiece, the processing deformation of the elastic expansion ring is serious, and the scrap rate is as high as 70% to 80%.

Manufacturers often adopt the "five guarantees and one" production method, resulting in greater economic losses