PROTECTIVE DEVICE FOR ROBOT CONTROLLER

摘要

PURPOSE:To prevent the occurrence of a time lag before the feed is interrupted by discontinuing the feed carried out based on a command when an overload detecting means detects that the reaction larger than the set value is applied to a robot. CONSTITUTION:An overload detecting means D delivers a signal after detecting that the reaction larger than the set value is applied to a robot R. Then the means D supplies a signal to a servomotor control part B, and a feed control means E of the part B interrupts the feed which is carried out based on a command of a central computer A and sets the revolving speed of a servomotor C at zero. Thus it is possible to shorten the response time for a period during which the shift is stopped in the indicated direction after the reaction larger than the set value is applied to the robot R. This prevents the malformation or breakage of a working head even in case the robot R has the interference to an obstacle at a comparatively high speed.