• CN: 11-2187/TH
  • ISSN: 0577-6686

Journal of Mechanical Engineering ›› 2025, Vol. 61 ›› Issue (19): 202-228.doi: 10.3901/JME.2025.19.202

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Research Progress on Spatial Error Modeling and Identification Methods for CNC Machine Tools Based on Error Compensation

SUN Guangming1,2, HAN Bing1, ZHANG Dawei2, TIAN Wenjie2,3, GUO Xin2,4, ZHAO Jian1, HE Gaiyun2, GAO Weiguo2, SU Zhe2,4   

  1. 1. School of Control and Mechanical Engineering, Tianjin Chengjian University, Tianjin 300384;
    2. Key Laboratory of Mechanism Theory and Equipment Design of Ministry of Education, Tianjin University, Tianjin 300072;
    3. School of Marine Science and Technology, Tianjin University, Tianjin 300072;
    4. Shenyang Machine Tool Zhongjie Friendship Factory Co., Ltd., Shenyang 110142
  • Received:2024-08-30 Revised:2025-02-06 Published:2025-11-24

Abstract: The modeling analysis and identification of the spatial errors of CNC machine tools have always been important steps in error compensation. Firstly, the research history and technological development of the modeling theories and identification methods for machine tool spatial errors are discussed. Secondly, the modeling and analysis of machine tool spatial errors is an important prerequisite for error compensation. The modeling theory of machine tool spatial errors has been comprehensively reviewed and analyzed, including methods such as rigid body kinematics theory, homogeneous coordinate change theory, D-H transformation theory, multi-body theory, and screw theory. Thirdly, the accurate measurement and precise identification of spatial error elements in machine tools are key to achieving effective control. The current status and development trends of key measurement and identification methods for machine tool spatial errors are specifically introduced and comprehensively evaluated, including laser interferometer multi line method, body diagonal method, as well as ball bar method, laser tracker method, and other methods. Finally, the modeling, detection, and identification of spatial errors in integrated machine tools are systematically analyzed to identify the problems that still need to be solved in improving the spatial accuracy of existing CNC machine tools. The importance of technological innovation in improving measurement efficiency and accuracy is emphasized; And prospects for future development directions have certain guiding significance for improving the accuracy of CNC machine tools.

Key words: CNC machine tool, error modeling, error detection and identification, space error compensation

CLC Number: