Title:
METHOD FOR BALANCING EXTERNAL FORCE LOAD IN MACHINE TOOL SPINDLE MOTOR
Document Type and Number:
WIPO Patent Application WO/2016/192308
Kind Code:
A1
Abstract:
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.
Inventors:
LEE KOK MENG (CN)
BAI KUN (CN)
BAI KUN (CN)
Application Number:
PCT/CN2015/094306
Publication Date:
December 08, 2016
Filing Date:
November 11, 2015
Export Citation:
Assignee:
DG-SYGOLE DIGITAL TECH CO LTD (CN)
UNIV HUAZHONG SCIENCE TECH (CN)
UNIV HUAZHONG SCIENCE TECH (CN)
International Classes:
G06F17/50; H02K26/00
Foreign References:
| CN104866677A | 2015-08-26 | |||
| CN103869757A | 2014-06-18 | |||
| CN103115724A | 2013-05-22 | |||
| CN202726639U | 2013-02-13 | |||
| CN103712807A | 2014-04-09 | |||
| JP2012223874A | 2012-11-15 |
Attorney, Agent or Firm:
YOGO PATENT & TRADEMARK AGENCY LIMITED COMPANY (CN)
广州粤高专利商标代理有限公司 (CN)
广州粤高专利商标代理有限公司 (CN)
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