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Aero-engine blade robot autonomous measurement method and system

A technology of aero-engines and measurement methods, which is applied in the direction of measuring devices, instruments, and optical devices, and can solve problems such as low detection efficiency and complex measurement path planning

Active Publication Date: 2021-01-29
HUNAN UNIV
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Problems solved by technology

This detection method has high precision, good repeatability, and strong versatility. It can complete the comprehensive measurement of the aero-engine blade profile. It is currently one of the methods with the highest accuracy for aero-engine blade profile measurement. Complicated, the accuracy of probe radius compensation directly affects the measurement results

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  • Aero-engine blade robot autonomous measurement method and system
  • Aero-engine blade robot autonomous measurement method and system
  • Aero-engine blade robot autonomous measurement method and system

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Embodiment Construction

[0087] In order to make the technical solution of the present invention clearer and clearer to those skilled in the art, the present invention will be described in further detail below in conjunction with the embodiments and accompanying drawings. The features in the example can be combined with each other.

[0088] refer to figure 1 , figure 1 An autonomous measurement method for an aeroengine blade robot provided in this embodiment includes the following steps:

[0089] S1: Calibrate the servo rotary table 1, the structured light 3D scanner 4 and the robot 5;

[0090] S2: Arrange measurement points according to the design model of the aeroengine blade;

[0091] S3: planning the path measured by the robot 5;

[0092] S4: Measure the three-dimensional shape of the aeroengine blade;

[0093] S5: Process the measurement data of the aeroengine blade.

[0094] Further, refer to figure 2 , the calibration of the servo rotary table 1, the structured light three-dimensional s...

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Abstract

The invention discloses an aero-engine blade robot autonomous measurement method and system. The method comprises the steps: calibrating a servo rotary workbench, a structured light three-dimensionalscanner and a robot, arranging measurement points according to an aero-engine blade design model, planning a robot measurement path, measuring the three-dimensional morphology of the aero-engine blade, and processing measurement data of the aero-engine blade. The system comprises a hardware system and a software system, wherein the hardware system comprises a servo rotary worktable, a blade measuring clamp, a structured light three-dimensional scanner, a robot, a robot control cabinet and an industrial computer; the software system comprises a measurement system calibration module, a measurement point layout module, a robot measurement path planning module, a point cloud data processing and visualization module, a three-dimensional model format conversion module, a man-machine interactionmodule and a measurement process control module. Measurement points are automatically arranged according to a product design model, a robot measurement path is generated, and robot autonomous measurement is achieved.

Description

technical field [0001] The invention relates to the technical field of three-dimensional measurement of robots, in particular to an autonomous measurement method and system for an aeroengine blade robot. Background technique [0002] Aeroengine blades are the core parts of aeroengines, which directly determine the aerodynamic performance and operating life of aeroengines. They are usually made of titanium alloys, superalloys and other materials, and their manufacturing volume accounts for about 30% of the total aeroengine manufacturing. The blades work in the harsh environment of high temperature and high pressure for a long time, and they are prone to thermal barrier coating peeling, ablation, cracks, corrosion and other damages, which will lead to blade breakage in severe cases. The measurement of three-dimensional shape of the blade is the key to evaluate and improve the processing quality of the blade. Obtaining the damage data of the blade surface is also of great signi...

Claims

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Application Information

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IPC IPC(8): G01B11/24
CPCG01B11/2433
Inventor 王耀南唐永鹏缪志强毛建旭朱青张辉周显恩江一鸣彭伟星刘学兵林杰
Owner HUNAN UNIV
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