This paper reviews the research progress of model-based industrial robot error parameter calibration technology to improve the end-effector control accuracy, and summarizes the key problems when industrial robot is applied to high-precision machining and manufacturing, such as incomplete error parameters, high calibration cost and calibration accuracy. Moreover, the paper analyzes the modeling method of error parameter calibration model, end-effector's pose measurement technology, error parameter identification technology and error compensation technology. And the main difficulties of model-based error parameter model calibration technology in dealing with complex calibration tasks are discussed Finally, aimed at some existing problems, a method to efficiently obtain and process the measured error data is proposed and a feasible development direction is also prospected.

industrial robot  /  error model  /  error parameter calibration  /  parameter measurement  /  parameter calibration  /  error compensation