Research advance on geometric error recognition algorithm for CNC machine tools

Error recognition, as the basis of error compensation, is very important for improving the forming accuracy of CNC machines. To improve the accuracy of error recognition, this paper provides an overview of the current research algorithms. Firstly, it briefly introduces the importance of geometric error recognition. Secondly, it classifies and summarizes the geometric error recognition algorithm based on five related devices such as ball bars, R-test device, on-machine measurement system, machine vision system, and others. Finally, the research trend of the geometric error recognition algorithm for CNC machine tools has prospected. It is pointed out that the application of machine vision technology on geometric error recognition will be the focus of future research.