Review on Thermal Error Suppression and Modeling Compensation Methods of High-Speed Motorized Spindle

Abstract: The internal structure of a high-speed motorized spindle is compact, and a large amount of heat is generated in the process of high-speed operation, which causes thermal deformation of the parts. The thermal characteristics of the motorized spindle become worse when the temperature increases, which seriously affects its machining accuracy. It is difficult to avoid the thermal error of motorized spindle and it accounts for a large proportion of the total error. How to restrain the thermal elongation of motorized spindle and establish an accurate thermal error model is particularly important. This paper reviews the methods of thermal error prevention and thermal error modeling compensation for the motorized spindle. By introducing several methods of thermal error suppression, optimization of temperature measurement points, and thermal error modeling theory, analyzes and discusses the advantages and disadvantages of various methods. Finally, prospects the future development of thermal error research of motorized spindle.