Robotic intelligent grinding and testing equipment for aero-engine blades

Abstract

The invention discloses an aero-engine blade robot intelligent grinding and testing equipment, comprising: a blade conveying device for storing the blades to be processed and finished blades; an image acquisition device for acquiring images of the blades to be processed; A robot for processing blades; a grinding device for grinding the blades to be processed; and a digital template inspection machine for judging whether the blades to be processed are finished blades; the working routes of the robot cover the blade conveying device and the image acquisition device, the image Acquisition device and grinding device, image acquisition device and digital template inspection machine, digital template inspection machine and grinding device, digital template inspection machine and blade conveying device. The invention realizes the self-adaptive closed-loop and unmanned processing of "measurement-processing" of the blade to be processed, protects the health of workers, reduces labor costs, does not require multiple disassembly and assembly, has small clamping error, and has high machining accuracy and yield.

Description

technical field [0001] The invention belongs to the technical field of aero-engine blade grinding and detection, and more particularly relates to an aero-engine blade robot intelligent grinding and detection equipment. Background technique [0002] The aero-engine blade is the core component of the aircraft power system. The aero-engine relies on the gas flow to generate thrust. The air flow enters from the air inlet, is compressed by the compressor, combusted in the combustion chamber, and then expanded by the turbine to do work, discharged from the exhaust port, and work in the air flow. In the process, the multi-stage blades in the compressor and turbine provide the main power output for the engine. The blades in aero-engines are of various types, large numbers and complex shapes, which make the processing and measurement of blades very difficult. [0003] At present, most blade processing in the blade manufacturing industry at home and abroad is still dominated by manua...

AI Technical Summary

Problems solved by technology

The blades in the aero-engine are of various types, large in number and complex in shape, which makes the machining and measurement of the blades very difficult

[0003] At present, most of the blade processing in the blade manufacturing industry at home and abroad is still dominated by manual grinding and polishing. Manual grinding and polishing mainly has the following disadvantages: (1) A large amount of dust and noise will be generated during blade grinding and polishing, which is harmful to the health of workers on the production line. Very unfavorable; (2) Manual grinding and polishing usually determines the grinding and polishing force and grinding and polishing trajectory according to the experience of the workers. It is difficult to guarantee the consistency of the surface of the blades polished by workers with different levels of proficiency, which seriously affects the quality and power of the aero-engine performance; (3) Workers cannot determine whether the size of the workpiece meets the processing requirements in time after grinding and polishing, and need to be sent to the measurement room to be tested by a three-coordinate measuring machine, resulting in complicated procedures and low processing efficiency

The three-coordinate measuring machine has high precision and large measurement range, and is widely used in industrial measurement. It is mainly composed of three-axis precision air-floating platform, contact probe, control system and software. The environmental requirements are high, and it needs to be installed in a clean room with constant temperature and humidity, so it can only be detected by offline measurement

The processing quality of the profiling method depends on the accuracy of the template. The manufacturing accuracy and running loss of the template will affect the final forming quality of the blade, and its versatility is poor, so it is difficult to meet the processing requirements of small batches and multiple specifications of blades.

Multi-axis linkage universal CNC grinding equipment has good flexibility and high precision, but it is limited by the high price of foreign high-end CNC equipment, the lack of functions of domestic alternative products, and the difficulty of process programming, it is difficult to quickly convert processes, and the lack of "measurement-processing "Adaptive closed-loop processing capabilities and other reasons have not replaced manual grinding and polishing, and cannot be widely used

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