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Robot controlling method, robot apparatus, program, recording medium, and method for manufacturing assembly component

  • US 9,718,187 B2
  • Filed: 06/08/2015
  • Issued: 08/01/2017
  • Est. Priority Date: 06/11/2014
  • Status: Active Grant
First Claim
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1. A robot controlling method for controlling an articulated robot, the articulated robot including joint driving devices configured to drive respective joints of the articulated robot each including a servomotor, a reduction gear, a motor-side angle detector configured to detect an output angle of the servomotor, and a reduction gear-side angle detector configured to detect an output angle of the reduction gear, the robot controlling method comprising:

  • a feedback control step of carrying out feedback control on motion of the servomotors such that detection angles detected by the respective motor-side angle detectors become target angles;

    a leading end position calculation step of obtaining a position of a leading end of the articulated robot based on detection angles detected by the respective reduction gear-side angle detectors;

    a timing step of obtaining a time from a reference time point to a time point at which a vibration width, relative to a positioning completion position, of the position of the leading end of the articulated robot calculated in the leading end position calculation step converges within a convergence range;

    a setting step of setting the time obtained in the timing step as a stopping duration, anda control step of stopping the articulated robot for the stopping duration and thereafter returning to the feedback control step.

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