This paper aims to solve the problem of abnormal rotation error that occurred in a domestic brand motorized spindle.The abnormal rotation error of the motorized spindle is caused by the gas seal failing to play a good sealing effect,which causes the front bearing and disc spring polluted by grinding oil,thus resulting in the failure of the front bearing,the worn of the spindle shaft and the decay of broaching force.By improving gas seal pressure,the material of the spindle shaft,and the structure of the broach,the service life of a motoried spindle is increased by more than 100%.
关键词
电主轴/主轴回转精度/轴承失效/轴芯磨损/拉刀力衰减
Key words
motorized spindle/spindle rotary error/failure of bearing/spindle shaft worn/decay of the broaching force