Virtual motor control for the machine tool table with three linear servo motors

Keisuke Umezawa, Yasuhiro Kakinuma, Seiichiro Katsura, Kohei Ohnishi, Tojiro Aoyama, Katsuhiko Yokoi

Research output: Contribution to conferencePaper

Abstract

The linear motor driving mechanism has been adopted as a positioning mechanism of machine tools to realize high speed and precise positioning due to the absence of friction and backlash. However, when two or more linear motors are used, minute differences between the thrust forces of each motor causes the generation of micro vibration and the change of velocity of each linear motor due to yawing around the center of gravity. This study proposes a virtual motor control method that uses three linear motors for the driving table to control the position of the center of gravity, bending and yawing independently.

Original languageEnglish
Publication statusPublished - 2007 Dec 1
Event4th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2007 - Fukuoka, Japan
Duration: 2007 Nov 72007 Nov 9

Other

Other4th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2007
CountryJapan
CityFukuoka
Period07/11/707/11/9

Keywords

  • Disturbance observer
  • Feedback control
  • Feedforward control
  • Machine tools
  • Motion control

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering

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