Fixture for end face turning of rotary part and process method

Abstract

The invention discloses a fixture for end face turning of a rotary part. The fixture is used for clamping the rotary part with the diameter gradually decreasing from one end to the other end. The fixture specifically comprises a tightening mechanism and a compression ring mechanism, wherein the tightening mechanism can limit circumferential rotation of the rotary part and axial movement of the rotary part from the big end to the small end, while the compression ring mechanism compresses the rotary surface of the rotary part and limit axial movement of the rotary part from the small end to thebig end, and thus complete limiting of axial and circumferential directions of the rotary part is realized, the situation that the rotary part deviates during turning and affects the processing precision is prevented, and meanwhile the potential safety hazards are reduced. The invention further discloses a process method using the fixture for end face turning of the rotary part.

Description

technical field [0001] The invention relates to the technical field of engines, in particular to a fixture and a process method for end face turning of a rotary part. Background technique [0002] Rotary thin-walled parts are common components of aero-engine casing parts. There are many parts in the aero-engine case body that are welded by the mounting edges at both ends and the middle part of the case body. The middle part of the case body is usually a rotary thin-walled part that is stamped, bulging or suspended. Before welding, It is necessary to turn both ends of the middle casing body to remove excess parts at both ends to obtain flat welding edges. [0003] Before the turning process of the rotary thin-walled parts, due to the stamping bulging or suspension forming, the irregular curved edges at both ends of the part cannot be used as the positioning support during the part processing, so the fixture design can only be based on the busbar characteristics of the part ...

AI Technical Summary

Problems solved by technology

[0005] When the part to be processed is a rotary thin-walled part whose diameter gradually decreases from one end to the other, when the part is clamped or braced, the parts of the fixture that are in contact with the bus bar of the part are all in one direction of the part from the axial view, so the parts Only one direction in the axial direction is under reliable pressure, and the other direction is not under pressure. The part is fixed by friction. When the part is subjected to the axial pressure of the turning tool, a slight axial displacement will occur. When moving in the direction, even a slight displacement may cause most or all of the parts to break away from the fixing mechanism, the friction force disappears, the circumferential fixation of the parts fails, and the parts rotate, which eventually leads to unqualified processing dimensions of the parts, and the axial fixation of the parts may also fail. Causing parts to drop, creating a dangerous situation

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