A review on spindle thermal error compensation in machine tools |
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| Affiliation: | 1. State Key Laboratory for Manufacturing System Engineering, Xi''an Jiaotong University, Xi''an, Shaanxi 710054, China;2. S.M. Wu Manufacturing Research Center, College of Engineering, The University of Michigan, Ann Arbor, MI 48109-2125, USA;1. College of Mechanical Science and Engineering, Jilin University, Changchun 130025, PR China;2. State Key Laboratory, Shenyang Machine Tool (Group) Co., Ltd., Shenyang 110142, PR China;3. College of Mechanical Engineering and Automation, Northeastern University, Shenyang 110819, PR China;1. Key Laboratory of Mechanism Theory and Equipment Design of Ministry of Education, Tianjin University, Tianjin 300355, China;2. School of Mechanical Engineering, Hebei University of Technology, Tianjin 300130, China;3. School of Electrical Engineering and Automation, Tianjin University, Tianjin 300072, China;4. Beijing Precision Machinery & Engineering Research Co., Ltd., Beijing 101312, China;5. School of Engineering, University of Warwick, Coventry CV4 7AL, UK;1. School of Mechanical and Precision Instrument Engineering, Xi’an University of Technology, Xi’an, Shaanxi 710048, China;2. College of Engineering, Qufu Normal University, Rizhao, Shandong 276800, China |
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| Abstract: | Thermal error caused by the thermal deformation is one of the most significant factors influencing the accuracy of the machine tool. Among all the heat sources which lead to the thermal distortions, the spindle is the main one. This paper presents an overview of the research about the compensation of the spindle thermal error. Thermal error compensation is considered as a more convenient, effective and cost-efficient way to reduce the thermal error compared with other thermal error control and reduction methods. Based on the analytical calculation, numerical analysis and experimental tests of the spindle thermal error, the thermal error models are established and then applied for implementing the thermal error compensation. Different kinds of methods adopted in testing, modeling and compensating are listed and discussed. In addition, because the thermal key points are vital to the temperature testing, thermal error modeling, and even influence the effectiveness of compensation, various approaches of selecting thermal key points are introduced as well. This paper aims to give a basic introduction of the whole process of the spindle thermal error compensation and presents a summary of methods applied on different topics of it. |
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| Keywords: | Review Spindle thermal error Temperatures and thermal errors measurements Thermal error modeling Thermal error compensation Thermal key points |
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