A kind of blade tenon spray protection fixture and manufacturing method thereof

Abstract

The invention discloses a blade tenon spray protection fixture and a manufacturing method thereof, comprising: a support plate, including a support plate chuck and a support plate pressure handle, and the support plate clamp is fixedly connected to the support plate pressure handle; a pressure plate, including a pressure plate clamp The head and the pressure plate pressure handle, the pressure plate chuck is fixedly connected to the pressure plate pressure handle; among them, the support plate pressure handle and the pressure plate pressure handle are hinged through the hinge shaft to form a hairpin structure; the spring is installed on the hinge shaft, and the spring is used to realize no When external force is applied, the blade tenon spray protection fixture is in a clamped state; both the support plate chuck and the pressure plate chuck are processed with spray windows for spraying coating on the working surface of the blade tenon; the blade tenon spray protection fixture is clamped on the blade When the tenon is used, the inner side walls of the clamp of the support plate and the clamp of the pressure plate are respectively attached to the tenon of the blade. The blade tenon spraying protection jig of the present invention can protect the non-spraying area of ​​the blade tenon during the thermal spraying process, and can improve the consistency of the coating quality of the tenon working surface.

Description

technical field [0001] The invention belongs to the technical field of aero-engines, and relates to a blade tenon tooling fixture, in particular to a blade tenon spraying protection fixture and a manufacturing method thereof. Background technique [0002] With the development of aero-engine technology, the requirements for the service life of the engine are getting higher and higher. As the core part of the engine, the compressor blade has increasingly high requirements on the anti-corrosion performance of its surface. In order to reduce the blade replacement rate and prolong its service life, it is often necessary to spray a lubricating and wear-resistant coating on the tenon working surface, while the non-working surface does not need to be sprayed, that is, it needs to be protected during spraying. [0003] At present, the existing protection method is usually manual protection with high temperature resistant adhesive tape. Due to the complex tenon structure and narrow ...

AI Technical Summary

Problems solved by technology

Due to the complex tenon structure and narrow area, it is difficult to protect the non-sprayed area. The existing methods not only cannot guarantee the consistency of the sprayed area, but also the tape needs to be trimmed later, which will lead to defects such as scratches on the tenon, which will cause serious damage to the blade installation and use. Hidden danger

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