DG-SYGOLE DIGITAL TECHNOLOGY CO., LTD;HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
发明人:
LEE, Kok Meng,BAI, Kun
申请号：
WO2015CN94306
公开号：
WO2016192308(A1)
申请日:
2015.11.11
申请国别(地区):
世界知识产权组织国际局
年份:
2016
代理人:
摘要：
Disclosed is a method for balancing an external force load in a machine tool spindle motor, which belongs to the field of spindle motor control. In the method, a multidimensional electromagnetic force output of a motor is used, and a current in a coil of the motor is controlled so that the electromagnetic force counteracts cutting forces applied to a workpiece from different directions in a cutting process while the rotation of the spindle motor is maintained. Therefore, the force sustained by a spindle bearing is reduced, and the purposes of reducing bearing wear and vibration in the cutting process are achieved. In the present invention, it is unnecessary to add another extra device to a machine tool spindle system, and the cutting forces can be counteracted by just controlling the current in the coil of the motor, and thus the service life of the spindle system can be greatly prolonged while the cutting quality is improved.
