Controlling method and apparatus for positioning a robot

摘要

A controlling method and a controlling apparatus both for positioning a robot are provided that can output an optimal speed instruction for controlling a residual vibration after completion of a moving operation, achieve reduction in tact Lime for the moving operation, and shorten the length of setting time. The method is a controlling method for positioning a robot (1) for performing a point-to-point moving operation of the robot (1), comprising: performing a test operation to measure a frequency of a residual vibration of the robot (1) that is stopped at a target position; measuring a magnitude of the residual vibration based on the frequency during each of different lengths of moving time for a predetermined moving distance of the robot (1) to find a relationship between the length of moving time and the magnitude of the vibration; calculating a shortest moving time at which the magnitude of the vibration becomes a minimum value; and performing the point-to-point operation of the robot (1) for the calculated shortest moving time, thereby to position the robot (1) at the target position.