Patent ID: 7643946
Filing Date: 2010-01-05
Classification: B25J,G05B

Abstract:
1. A method for appraising axle wear of a robot arm of an industrial robot, which comprises the steps of: taking a bi-directional torque profile of at least one axle of the robot arm during at least one working cycle of the industrial robot and providing the torque profile to an evaluation device for an analysis; with the evaluation device, analyzing the torque profile for portions of the torque profile that exceed a previously fixed torque band; with the evaluation device, determining current axle wear by assessing a frequency and/or a curve profile of the portions of the torque profile; with the evaluation device, appraising axle wear of the robot arm based on the current axle wear for determining maintenance requirements; and storing the torque profile within the evaluation device for later use by a user.