Method for machining thin-wall sleeve type part through wedge type inner supporting mechanism

Abstract

The invention relates to a method for machining a thin-wall sleeve type part through a wedge type inner supporting mechanism. The method includes the following steps that rough machining is conducted on the outer circle face, the inner circle face and the end face of the sleeve type part; heat treatment is conducted on the sleeve type part obtained after rough machining, and the roundness deformation of the sleeve type part is controlled to be within 2 mm; semi-finishing is conducted on the outer shape face, the inner shape face and the end face of the sleeve type part; an opening of the sleeve type part is machined; and finish machining is conducted on the outer shape face, the inner shape face and the end face of the sleeve type part to reach the design sizes. According to the method, the phenomena of chattering, cutter relieving, the uneven wall thickness, deformation and the like when the outer circle of the part is turned can be avoided, and the qualification rate of the part can be improved to 97% or above from 70%.

Description

technical field [0001] The invention relates to the technical field of machining, in particular to a method for processing thin-walled sleeve parts by using a wedge type internal support mechanism. Background technique [0002] At present, in the aerospace manufacturing industry, the structure of parts is developing in the direction of light weight and high precision, and thin-walled sleeve parts are typical structures. Due to the thin wall thickness, the thin-walled sleeve parts generally have the phenomenon of tool letting, part vibration, uneven wall thickness, and part deformation during the machining process. [0003] The processing characteristics of thin-walled sleeve parts have the following characteristics: 1. Thin-walled sleeve parts have large diameters, thin walls, many openings on the outer surface, poor rigidity, and are prone to deformation; 2. The rigidity of the parts is poor, and the surface of the parts is easy to deform after processing. There are chatte...

AI Technical Summary

Problems solved by technology

[0005] The invention provides a method for processing thin-walled sleeve parts by using a wedge-type internal support mechanism, which solves or partially solves the problems caused by the large processing deformation of the parts in the prior art, chatter lines on the surface of the parts after processing, and clamping deformation. The technical problem that the follow-up finishing size is difficult to control has realized the avoidance of vibration, tool gap, uneven wall thickness, deformation and other phenomena during turning the outer circle, and the technical effect of the part qualification rate has increased from 70% to more than 97%.

Images