Title:
機械剛性の自己測定機能および自己監視機能を有するサーボモータ制御装置
Document Type and Number:
Japanese Patent JP6312548
Kind Code:
B2
Abstract:
A servo motor controller includes a speed command generating unit for generating a speed command value of the servo motor, a speed detecting unit that detects a speed of the servo motor, a torque command generating unit for generating a torque command value, a sine wave generating unit for generating a sinusoidal disturbance value, a frequency response calculating unit for calculating a frequency response when the sinusoidal disturbance value has been input to a speed control loop, a resonance frequency detecting unit for detecting a resonance frequency at which a gain is maximized, a resonance frequency storing unit for storing the resonance frequency, at least one filter for attenuating a specific frequency band component included in the torque command value, and a resonance frequency comparing unit for measuring stiffness of a machine tool based on the resonance frequency and adjusts the filter with respect to the resonance frequency.
Inventors:
Kazunori Iijima
Satoshi Inokai
Satoshi Inokai
Application Number:
JP2014157147A
Publication Date:
April 18, 2018
Filing Date:
July 31, 2014
Export Citation:
Assignee:
FANUC Corporation
International Classes:
H02P29/00; G05B19/18; G05B19/4062
Domestic Patent References:
| JP2009192837A | ||||
| JP2009015448A | ||||
| JP2008109816A | ||||
| JP2010093961A | ||||
| JP2012023834A | ||||
| JP2000278990A |
Attorney, Agent or Firm:
Atsushi Aoki
Jun Tsuruta
Tomohiro Minamiyama
Kenichi Nakamura
Jun Tsuruta
Tomohiro Minamiyama
Kenichi Nakamura