Overview of Research Methods for Geometric and Thermal Errors of CNC Machine Tools
The machining accuracy of CNC machine tools is a key indicator to measure the performance of machine tools.There are various error sources affecting machining accuracy,and the most significant ones are geometric errors and thermal errors,accounting for 60％to 70％of the total error of machine tools.Error compensation is considered an effective and economical means to improve the ma-chining accuracy of machine tools.Accurate measurement of errors and the establishment of error models are the foundation and prereq-uisite for error compensation.The measurement,modeling,and compensation processes of comprehensive errors in CNC machine tools were summarized,the advantages and disadvantages of measurement tools,modeling,and compensation schemes were analyzed,some key issues in accuracy optimization of CNC machine tools were pointed out,and the future research directions were discussed.
NETL
NSTL
万方数据
