基于标准芯棒的校准测量方法

By adjusting the center position of the hydraulic fixture using a standard mandrel and changing the measurement benchmark and method, the problem of measurement deviation in the air-bearing turntable was solved, thus improving the success rate and accuracy of rotor assembly.

CN115077440BActive Publication Date: 2026-07-17INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI
Filing Date
2021-03-11
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

During the assembly of gas turbine and aero-engine compressor and turbine rotors, the center position deviation between the air-bearing turntable and the hydraulic fixture leads to large deviations in measurement results, which cannot meet the assembly requirements and affect the rotor assembly accuracy and success rate.

Method used

The center position of the hydraulic fixture is adjusted by using a standard mandrel. By changing the measurement reference and measurement method, the influence of the hydraulic fixture's own machining error is eliminated, thereby improving the accuracy of the center position.

Benefits of technology

By eliminating machining errors in hydraulic fixtures, the accuracy of the center position of the air-bearing turntable and the hydraulic fixture is improved, increasing the success rate and precision of rotor assembly.

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Abstract

本发明提供了一种基于标准芯棒的校准测量方法,其中,标准芯棒用于调整液压夹具的中心位置,该方法包括:将液压夹具固定于气浮转台上并进行找正;将标准芯棒的一端装入液压夹具中,并以液压夹具的内圆柱面为基准,测量标准芯棒的端面跳动值,利用标准芯棒的端面跳动值得到校准参考芯棒的径向跳动值;通过调整液压夹具在气浮转台上的位置,使得校准参考芯棒的径向跳动值达到预设径向跳动值,确定液压夹具的中心位置。
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