A quick-change fixture for plasma spraying of aviation engine blades

By designing the quick change fixture for the aviation engine blade plasma spray, and using the structure of the quick change base and the main body of the fixture, the problems of clamping in the existing technology that the time to clamping is consumed, fixed-point spraying is difficult to achieve and replace the clamping time, and rapid clamping, fixed-point spraying and efficient replacement are achieved, and production efficiency and applicability are improved.

CN116288126BActive Publication Date: 2025-03-28CHINA HANGFA GUIZHOU LIYANG AVIATION POWER CO LTD
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Patent Information

Application Number
CN202211532123.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-12-01
Publication Date
2025-03-28
Estimated Expiration
2042-12-01

AI Technical Summary

Technical Problem

The clamping process of existing plasma spray rotary fixtures takes a long time, is inconvenient to clamp, and cannot achieve fixed-point spraying. It is difficult to position, takes a long time to replace the fixtures, and is not very adaptable, which limits production efficiency and increases production costs.

Method used

Design a quick change fixture for plasma spraying of aero engine blades, including a quick change base and fixture body. It uses positioning columns, slots, spokes and airflow outer baffles to achieve rapid positioning and protection of spray-free areas and support quick change of different blade parts.

Benefits of technology

It achieves a shortening of clamping time, convenient clamping process, improves positioning efficiency and speed of fixture replacement, reduces production costs, and is suitable for tenon coating spraying of various types of blades.

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Abstract

A quick-change fixture for plasma spraying of aircraft engine blades, comprising a quick-change base and a fixture body arranged on the quick-change base; a positioning column and a card slot are arranged on the quick-change base; the fixture body comprises an annular bottom plate and a blade placement ring on the annular bottom plate, and a plurality of openings for placing blades are evenly distributed in an annular pattern on the outer circumference of the blade placement ring; an outer airflow baffle is arranged on the outer side of the blade placement ring at a position corresponding to the opening, and an inner airflow baffle is arranged on the inner side; a plurality of spokes are arranged inside the annular bottom plate, and a positioning hole is arranged at the center of the spokes, the positioning column can be movably inserted into the positioning hole, and one of the spokes is card-engaged in the card slot. In actual use, the blade only needs to be installed on the opening of the blade placement ring, and then the fixture body is installed on the quick-change base to complete the clamping of the blade. During the clamping process, the blade does not need to be fixed with bolts, and the clamping process is short in time and convenient.
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