Multi-objective Optimization of Machine Tool Spindle-Bearing System

2020 ◽  
Vol 21 (10) ◽  
pp. 1885-1902
Author(s):  
Van-Canh Tong ◽  
Jooho Hwang ◽  
Jongyoup Shim ◽  
Jeong-Seok Oh ◽  
Seong-Wook Hong
Keyword(s):  
Machine Tool ◽  
Multi Objective Optimization ◽  
Multi Objective ◽  
Spindle Bearing ◽  
Machine Tool Spindle ◽  
Bearing System

scholarly journals The bearing parallel misalignment running model–based machine tool spindle thermal error analysis

2018 ◽  
Vol 10 (6) ◽  
pp. 168781401877862
Author(s):  
Yanfang Dong ◽  
Zude Zhou ◽  
Lihai Chen
Keyword(s):  
Machine Tool ◽  
Significant Influence ◽  
Thermal Error ◽  
Simulation Method ◽  
Contact Angles ◽  
Empirical Methods ◽  
Spindle Bearing ◽  
Machine Tool Spindle ◽  
Contact Loads ◽  
Parallel Misalignment

As a key component of the machine tool spindle, bearing has critical influences on the spindle thermal error. In particular, the installation errors of bearing have considerable effects upon the spindle thermal error by altering the bearings’ internal contact angles, contact loads, and friction torques for different ball positions, but have yet to be fully elucidated. In this article, the influence of installation errors on the resulting spindle thermal error was evaluated using both empirical methods and simulation method, with the ultimate aim of reducing installation error. Deviations within the bearing support were used to simulate bearing parallel misalignment; bearing parallel misalignment running model was built, and an analysis and comparison of various conditions were used to determine the influence, showing that the parallel misalignment has significant influence on the spindle Z direction thermal error.

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