Automatic Positioning and Polishing System of Laser Displacement Measurement Robot for Aviation Complex Curved Surface Workpiece
Aiming at the problems of low positioning accuracy and difficult positioning of large aero-engine pipe parts with rotary surface in high precision machining technology,a method of precise measurement and automatic position adjustment of workpiece based on laser displacement sensor was proposed.A robot grinding center was constructed as a grinding platform for the key components of the aero engine,and a non-contact laser displacement measurement system was used to collect data,and the radial and angular deviations were calculated through data fitting.ln order to realize non-contact automatic tool setting,the positioning clamping slider mechanism was designed to determine the moving amount of positioning clamping block at each station.Finally,the above robot intelligent processing and intelligent detection functions were innovatively integrated through software.The results of four-station simulation and three-station actu-al grinding show that this method can significantly improve the precision,efficiency and grinding quality of large rotary workpiece.