Device and method for grinding and finishing coating of low-pressure turbine case of engine

A low-pressure turbine and dressing device technology, which is applied in the direction of grinding/polishing safety devices, grinding workpiece supports, grinding machine parts, etc., can solve the problems of low manual measurement accuracy and high labor intensity, and avoid affecting the environment. Improve the effect of low efficiency and improve the trimming accuracy

Inactive Publication Date: 2022-05-06
天津仁爱学院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The object of the present invention is: in order to solve the problems of low manual measurement accuracy and high labor intensity, a kind of engine low-pressure turbine case coating grinding and finishing device and method thereof are proposed

Method used

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  • Device and method for grinding and finishing coating of low-pressure turbine case of engine
  • Device and method for grinding and finishing coating of low-pressure turbine case of engine
  • Device and method for grinding and finishing coating of low-pressure turbine case of engine

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Embodiment approach

[0046] The implementation method is as follows: the actual situation of the casing coating is measured in real time through the accompanying device, and then the coating grinding tool trajectory driven by the machining geometric features is realized through the secondary development of UG / CAM, and the post-processing generates NC codes to drive the body of the device to complete the casing The accompanying grinding and dressing of the coating improves the coating dressing efficiency and dressing accuracy, and reduces the cost and labor intensity of workers at the same time.

[0047] The X-axis component 32 includes the X-axis drive side bearing seat 323 and the X-axis rear end bearing seat 328, the X-axis drive side bearing seat 323 and the X-axis rear end bearing seat 328 are fixedly connected to the top of the L-shaped base 31, and the X-axis drive side The inside of the bearing seat 323 and the X-axis rear end bearing seat 328 is fixedly installed with the X-axis bearing 326...

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Abstract

The invention discloses an engine low-pressure turbine case coating grinding and finishing device and method, and belongs to the technical field of engines, the engine low-pressure turbine case coating grinding and finishing device comprises a device body, a control device is fixedly installed on one side of the device body, and a dust removal device is fixedly installed on the other side of the device body; the top of one side of the device body is fixedly connected with an accompanying measuring device. According to the method, deformation data of the reference A of the inner ring of the casing coating is obtained in a non-contact measurement mode, data point cloud reflecting real deformation is obtained by processing the deformation data, a machining geometric curve is obtained through NURBS curve fitting, and then a coating grinding tool path driven by machining geometric characteristics is achieved through UG/CAM secondary development. NC codes are generated through post-processing to drive the device body to complete follow-up grinding and finishing of the casing coating, the finishing efficiency and finishing precision of the coating are improved, and meanwhile the cost and the labor intensity of workers are reduced.

Description

technical field [0001] The invention belongs to the technical field of engines, and in particular relates to a coating grinding and finishing device and method for a low-pressure turbine casing of an engine. Background technique [0002] Civil aviation engines have the characteristics of high manufacturing precision, high operating speed and high operating temperature. The radial gap between the rotor blade tip and the casing (gas path sealing gap) has a great influence on its working efficiency, power consumption and other indicators. In order to reduce the sealing gap of the gas path, a sealing coating, also called a sealing coating, is generally introduced into the gap part of the engine air flow channel. The abradable sealing coating is applied between the stator part and the rotor part as a sacrificial coating, which can not only effectively reduce the gap between the blade tip and the casing to improve the engine efficiency, but also when the engine rotor blades collid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B19/00B24B41/06B24B49/02B24B55/06G06F30/17
CPCB24B19/00B24B41/06B24B49/02B24B55/06G06F30/17
Inventor 刘民杰马超陈晔季宁吴国鹏
Owner 天津仁爱学院
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