Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
SERVO CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/091941
Kind Code:
A1
Abstract:
Regarding a backlash amount measurement system provided in the servo control device of the drive motor of machine tools and industrial machines, a technical problem is to accurately measure the backlash amount at the time of inversion of a drive shaft by means of a backlash amount measurement system having a simpler configuration with a small number of detectors. The above technical problem can be solved by a backlash amount measuring unit equipped with an inversion detection unit which detects the start of inversion of the shaft, an arrival detection unit which detects that the backlash end has been reached from the start of inversion, and a time/distance measurement unit which measures the time from when the inversion detection unit detects the start of inversion until the arrival detection unit detects that the backlash end has been reached, or the distance.

Inventors:
TAKARAZAWA SHUN (JP)
IKAI SATOSHI (JP)
Application Number:
PCT/JP2021/038960
Publication Date:
May 05, 2022
Filing Date:
October 21, 2021
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
FANUC CORP (JP)
International Classes:
G05D3/12; G05B19/18
Foreign References:
JP2007058278A2007-03-08
JP2010079845A2010-04-08
JP2011221612A2011-11-04
JP2017212812A2017-11-30
US20140039666A12014-02-06
Attorney, Agent or Firm:
SHOBAYASHI Masayuki et al. (JP)
Download PDF: