Research Progress on Positioning Error Compensation Technology of Industrial Robot

Abstract

Industrial robots play an important role in promoting the development of industrial automation, flexibility and intelligence. The positioning error of robot is the key factor that hinders its application in the manufacturing field. The positioning accuracy of robot determines the quality and accuracy of the products. Error compensation technology is of great significance to improve the positioning accuracy of robots. Based on the clue of positioning error measurement-prediction-compensation, the research progress of open-loop measurement and closed-loop measurement technology, model-based error prediction and non-model-based error prediction methods, online compensation and offline compensation technology is summarized in detail. Finally, the development trends are prospected in order to provide reference for the research of positioning error compensation of industrial robot.