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SERVO CONTROL APPARATUS THAT PERFORMS LEARNING CONTROL BY CHANGING REFERENCE AXIS

  • US 20160291573A1
  • Filed: 03/22/2016
  • Published: 10/06/2016
  • Est. Priority Date: 04/02/2015
  • Status: Active Grant
First Claim
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1. A servo control apparatus for a machine that performs machining by driving and controlling a servo motor on the basis of a position command and by causing a plurality of synchronizing axes to operate cooperatively in synchronized relationship with a reference axis, the servo control apparatus comprising:

  • a position detection unit for detecting at least one of the position of the servo motor and the position of a driven body;

    a position error calculation unit for calculating an error between the position command and the position detected by the position detection unit;

    a reference axis position acquisition unit for acquiring the positions of a plurality of reference axes;

    a reference axis selection unit for selecting one reference axis on the basis of a machining condition of the driven body from among the plurality of reference axes whose positions have been acquired; and

    a learning control unit for performing learning control using an angle synchronization method, on the basis of the error and the position of the selected reference axis.

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