Coaxiality detecting and adjusting method for cartridge receiver of aero-engine

A technology of aero-engine and adjustment method, which is applied to measuring devices, instruments, etc., can solve problems such as low detection efficiency, and achieve the effects of simplifying manual meter loading, reducing worker operations, and improving the degree of automation

Active Publication Date: 2018-05-15
BEIJING INSTITUTE OF TECHNOLOGYGY
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Problems solved by technology

[0005] In view of this, the present invention provides a coaxiality detection and adjustment method suitable for aero-engine casings, which can solve th

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  • Coaxiality detecting and adjusting method for cartridge receiver of aero-engine
  • Coaxiality detecting and adjusting method for cartridge receiver of aero-engine
  • Coaxiality detecting and adjusting method for cartridge receiver of aero-engine

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Embodiment Construction

[0050] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0051] The invention provides a method suitable for detecting and adjusting the coaxiality of the aero-engine casing, which is different from the general rotation axis measurement method. The general rotation measurement first ensures that the reference axis of the casing coincides with the rotation center axis of the turntable through measurement and adjustment, and then By measuring the runout of the parts and performing data processing, it is judged whether the coaxiality of each part of the engine casing is qualified. However, this method is to first establish a coordinate system on the turntable, measure and obtain the coordinates of each measured point of the casing in this coordinate system, and then obtain the casing profile and pose information through the least squares fitting calculation, so as to achieve measurement and adjustment. The purpose ...

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Abstract

The invention discloses a coaxiality detecting and adjusting method for the cartridge receiver of an aero-engine and belongs to the field of manufacturing quality prediction and control. According tothe method, the position coordinates of all points of the cartridge receiver relative to the rotary center of a rotary table are measured. After that, the pose information of the cartridge receiver isobtained through least square method fitting and calculation. As a result, the coaxiality of all components on the cartridge receiver of the aero-engine can be measured and adjusted. Different from acommon rotary axis measuring method, the deviation and the inclination of the cartridge receiver are allowed, while only the detection limit cannot be exceeded. In this way, manually accurate clamping and adjusting steps are reduced, and the technical requirements on workers are reduced. The efficiency is improved. Meanwhile, based on the method, the manual meter installation is simplified, and ameter can be arranged for multiple times. The method is assisted by computer programming in the implementation process, wherein the manual reading, recording, calculation and other operations are reduced. The workload of workers is reduced, and the automation degree is improved. The measurement efficiency is improved.

Description

technical field [0001] The invention relates to a method suitable for detecting and adjusting the coaxiality of an aero-engine casing, and belongs to the technical field of manufacturing quality prediction and control. Background technique [0002] A large number of scientific research and production practices have shown that aero-engines often cause collision and friction between the static and rotor of the engine due to unqualified coaxiality, which causes vibration and affects the operation of the engine. Therefore, coaxiality measurement is of great significance to ensure the normal operation of the engine and improve the reliability of the engine. [0003] Combined with the actual production, in the assembly line of mass-produced aero-engines, it is necessary to detect and adjust the coaxiality of the bearing frame at one end of the engine casing, and now the method of measuring the axis of rotation is used. The method of adjusting the bearing frame is to first measure...

Claims

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Application Information

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IPC IPC(8): G01B21/24
CPCG01B21/24
Inventor 金鑫尚可郭欢张之敬张秋爽
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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