US Patent 10960553 Robot control device and robot system

A robot control device includes a processor that is configured to calculate, based on magnitude of a target force in force control performed based on an output of a force sensor, a direction of the target force, a position where the force control is started, a posture in which the force control is started, and peculiar information including values of a plurality of allowable torques corresponding to a plurality of joints included in the robot, values of a plurality of torques generated in the plurality of joints when the force control is executed at the magnitude of the target force and in the direction of the target force in the position where the force control is started and the posture in which the force control is started.