Automatic Quantitative Removal Method of Aero-engine Fan Impeller Robot
The dynamic balance difference of aero-engine fan impeller will cause the damage of internal engine bear-ings and blades,resulting in engine vibration and overall performance decline. In this paper,an automatic machining method based on multi-sensor fusion is proposed for the quantitative removal of an aero-engine fan impeller based on dynamic bal-ance. The method is based on a six-degree-of-freedom robot system and a CNC turntable. By integrating the measurement sensor and the mechanical sensor,the robot control technology is used to realize the automatic grinding and polishing of the fan impeller,and the theoretical removal amount is compared with the actual removal amount. The experimental results show that the difference between the theoretical and actual removal amounts is within±1% when the grinding and polishing in-terval is greater than 10°,which verifies the accuracy and feasibility of the proposed machining method. Compared with tra-ditional manual polishing or complex and expensive machine grinding,this method has the advantages of high integration,high efficiency and strong popularity for the fixed point quantitative removal of aero-engine fan impeller,which provides a strong technical support for the manufacture of aero-engine.