Measurement tool for controlling uniformity of coating layer of casing

Abstract

The invention relates to the field of the casing coating layer of the engine stator, particularly to a measurement tool for controlling uniformity of a coating layer of a casing. The measurement tool comprises a measurement rod, a positioning ring, and a measurement tool unit. The measurement tool is characterized in that a measurement rod mandrel is installed on a measurement rod pedestal of the measurement rod; and the positioning ring is arranged on the measurement rod mandrel. One end of a measurement support arm of the measurement tool unit is arranged on the measurement rod mandrel in a sleeving mode and is localized based on the position of the positioning ring; and the other end of the measurement support arm is provided with a measurement head. The measurement tool unit serves as a force bearing and rotation component and is used as a basic limiting device for implementing measurement of the radius of a coating layer. With the measurement tool, phenomena of inner diameter eccentricity of the coating layer and un-uniform local thickness can be reduced and controlled; the number of times of repairing and assembling of the engine is substantially reduced; problems of resource wasting like time and manpower wasting due to repeated assembling and measurement of the engine assembly can be solved effectively; the assembling period of the parts is shortened and the repairing time and cost of the single engine are reduced; the production efficiency is improved; and the assembling quality and using requirement of the engine can be met.

Description

technical field [0001] The invention relates to the field of engine stator casing coating, in particular to a measuring tool for controlling the uniformity of casing coating. Background technique [0002] For many years, the machining measurement of the coating inner diameter of the engine stator casing and the coating damage repair process mainly use the micrometer rod to measure the coating inner diameter, record the actual values ​​of the four diameters evenly distributed at 8 points, and calculate the actual size of the sand Repair guarantee, it is easy to cause local uneven thickness of the casing coating, and eccentricity of the inner diameter of the casing coating. After the engine works, the rotor blades and local coatings are severely scratched, and even the rotor blades are damaged or broken, which seriously affects the working quality of the engine and poses a great safety hazard. Contents of the invention [0003] The purpose of the present invention is to pro...

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Problems solved by technology

[0002] For many years, the machining measurement of the coating inner diameter of the engine stator casing and the coating damage repair process mainly use the micrometer rod to measure the coating inner diameter, record the actual values ​​of the four diameters evenly distributed at 8 points, and calculate the actual size of the sand Repair guarantee, it is easy to cause local uneven thickness of the casing coating, and eccentricity of the inner diameter of the casing coating

After the engine is working, the rotor blades and local coatings are severely scratched, and even the rotor blades are damaged or broken, which seriously affects the working quality of the engine and poses a great safety hazard

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