Thin-wall sealing ring machining system and machining method

Abstract

The invention discloses a thin-wall sealing ring machining system and method. The machining method comprises the steps that a blank is obtained, the outer circumferential face is subjected to rough turning, and a large end face clamping edge and a small end face clamping edge are formed; the inner peripheral surface near the large end surface is roughly turned to form an axial step near the small end surface of the inner peripheral surface; axial steps, close to the small end face, of the outer side and the inner circumferential surface of the small end face clamping edge are clamped, and a large end face groove and a small end face groove are roughly turned; two axial end faces of a part are clamped, and a large end face boss and a small end face boss are milled; finish turning is carried out on a process standard; the finish turning is carried out to a target size; and the part is divided into two parts through linear cutting. According to the method, a stable treatment procedure is canceled, the part machining period is shortened, the process route is optimized, and all shapes, positions and sizes are machined in one procedure; by adjusting the machining sequence of numerical milling and numerical turning, the situation that after numerical milling machining, the size of the numerical turning procedure is deformed, and consequently parts are out of tolerance is effectively prevented; and a feeding mode of the numerical turning program is optimized, and deformation of the part is reduced.

Description

technical field [0001] The invention relates to the field of aviation parts processing, in particular to a thin-wall sealing ring processing system and processing method. Background technique [0002] The aero engine is the "heart" of the aircraft, known as the "pearl" on the "crown" of the aviation industry, and its advanced nature is an important symbol to measure a country's industrial level and capability. Splitting the thin-walled sealing ring in half of the aero-engine is a new design concept. However, this new structure leads to poor rigidity of the thin-walled sealing ring system, which is prone to deformation during processing, and the structure of the special-shaped groove on the end face of the thin-walled sealing ring is complicated. , The design of the tool is difficult, and the parts are severely deformed after being cut. In addition, the parts are prone to serious deformation in the natural state and cannot meet the precision requirements. [0003] In the pri...

AI Technical Summary

Problems solved by technology

The existing fixtures rebound severely after the parts are cut, the accuracy of the assembled fixtures is poor, and there are processing errors. The technicians perform three-dimensional conversions, and there are quality risks.

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