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Method for measuring aero-engine compressor blades based on three-coordinate measuring machine

A three-coordinate measuring machine and aero-engine technology, applied in the field of measurement, can solve problems such as low measurement efficiency, and achieve the effect of improving measurement efficiency

Active Publication Date: 2013-07-31
AECC AVIATION POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Low measurement efficiency

Method used

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  • Method for measuring aero-engine compressor blades based on three-coordinate measuring machine
  • Method for measuring aero-engine compressor blades based on three-coordinate measuring machine
  • Method for measuring aero-engine compressor blades based on three-coordinate measuring machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0056] (1) Make a measuring fixture

[0057] The measuring fixture consists of a base plate 1 and two sets of pressing devices and positioning devices of the same structure. The two sets of pressing devices and positioning devices are respectively located on both sides of the center line of the base plate, with one side of the base plate 1 as the reference plane, and the adjacent sides The verticality is within 0.01mm.

[0058] Each set of pressing device includes a support pin 6, a lever 7, a lever support 8, a limit screw 9, a cylindrical pin 10 and a spring 15, the support pin 6 penetrates the upper and lower surfaces of the base plate, and the support pin 6 is located on the pin rod on the lower surface of the base plate Sleeve spring 15, the end of support pin 6 located on the upper surface of the base plate has a V-shaped groove, the angle between the two sides of the V-shaped groove is 90°, the spring 15 is stuck between the lower surface of the base plate 1 and the lev...

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Abstract

The invention belongs to the field of measuring techniques, and relates to a method for measuring aero-engine compressor blades based on a three-coordinate measuring machine and applicable to an aero-engine swallow tail-type rabbet blade three-coordinate measurement. According to the invention, when the blades are measured on the three-coordinate measuring machine, a measuring clamp can be shared through double stations and multiple part numbers, different measuring procedures can be formulated, and one measuring clamp can be used for measuring a plurality of various-typed blades, so that the situation that one type of blades uses a set of three coordinate measuring clamp in the prior art is changed, and cost for designing, manufacturing and safeguarding the measuring clamp is saved. When measuring blades in batches, the double-station measuring clamp enables the measuring machine to measure blades on two stations continuously and alternately by formulating circulating measuring procedure, so that the time of halt for waiting loading and unloading blades after measuring one blade in the prior art is saved, and the measuring efficiency is improved. The measuring method can be popularized to three-coordinate measurement for all parts.

Description

technical field [0001] The invention belongs to the measurement technology, and relates to a measurement method of an aeroengine compressor blade based on a three-coordinate measuring machine, which is applied to the three-coordinate measurement of the dovetail tenon blade of the aeroengine. Background technique [0002] Dovetail tenons account for a large proportion of aeroengine rotor blades. At present, each blade uses a set of three-coordinate measurement fixtures. Due to the high frequency and short cycle of measurement of this type of blades, the design, manufacture, and storage costs of this type of measurement fixtures are high. very high. The currently used three-coordinate measurement fixture can only clamp one blade at a time. After measuring a blade, it stops to wait for loading and unloading of the blade. The downtime accounts for almost 1 / 2 of the measurement time. The measurement efficiency is low. Invention content: [0003] The purpose of the present inv...

Claims

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Application Information

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IPC IPC(8): G01B21/00
Inventor 高晓斐赵赟叶忠宇王素娟崔彩霞毛树根
Owner AECC AVIATION POWER CO LTD
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