Rectifying blade body end face position measuring device and method

Abstract

The invention discloses a rectifying blade body end face position measuring device and method, and the device comprises a first positioning V-shaped block and a second positioning V-shaped block whichare respectively used for positioning an upper shaft neck and a lower shaft neck of a rectifying blade, and also comprises a positioning unit; an upper shaft neck side blade body end face limiting block and a lower shaft neck side blade body end face limiting block are arranged on the outer side of the first positioning V-shaped block and the outer side of the second positioning V-shaped block respectively and connected with a first gauge stand and a second gauge stand respectively in a matched mode; the upper sides of the first gauge stand and the second gauge stand are respectively connected with dial gauges used for measuring an upper shaft neck side blade body end face and a lower shaft neck side blade body end face, an upper shaft neck side blade body end face gauge checking member and a lower shaft neck side blade body end face gauge checking member are arranged between the upper shaft neck side blade body end face limiting block and the lower shaft neck side blade body end facelimiting block.

Description

technical field [0001] The invention belongs to the technical field of engine rectifying blade measurement, and in particular relates to a device and method for measuring the position of a rectifying blade blade body end surface. Background technique [0002] With the development of my country's aviation industry, the performance requirements of the engine are also increasing, and the gap between the end face of the blade body and the casing and the inner ring increases, which reduces the performance of the engine. The size of the end surface of the blade airfoil is the main factor affecting the clearance between the engine blade and the casing and the inner ring, and it is particularly important to control the position of the end surface of the blade airfoil. The end face of the airfoil is a spatial conical surface, and the accuracy requirements for position size and surface roughness are getting higher and higher. The first common measurement method is to use a template t...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a device and method for measuring the position of the end surface of the rectifying blade blade body, so as to solve the problem that the gap between the end surface of the blade body and the casing and the inner ring is out of tolerance in batches after the blade is installed. Accurately measure the actual value at each position of the end surface of the airfoil to improve the inspection accuracy of the parts

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