Cooling strategy and experiment of high-speed motorized spindle

The motorized spindle generates heat during high-speed operation, and the thermal deformation caused by temperature rise will seriously affect the machining accuracy of the motorized spindle. Therefore, in order to reduce the influence of the heating of the motorized spindle on the machining performance, the temperature field distribution of the motorized spindle is analyzed. Taking the motorized 170SD30 spindle as the research object, the temperature field of the motorized spindle was simulated by COMSOL software. The motorized spindle automatic test system was used to carry out the spindle cooling test. The motorized spindle cooling experiment showed the temperature distribution of the spindle in three common speed states. The higher the spindle speed runs, the higher the temperature of the spindle is; the higher the temperature of the cooling water is, the higher the temperature of the spindle is. The higher the flow rate of the cooling water is, the lower the spindle temperature is.