Welding control device, welding robot system, and welding control method

A welding control method, wherein

• a welding control device includes a welding DB, a state sensor, a simulated environment, and a motion control unit, and
• the method comprises:
• storing prescribed motion data associated with an object to be welded in the welding DB;
• measuring, by the state sensor, as welding state data, a situation of welding by a robot which executes welding in a real environment according to the prescribed motion data;
• notifying a worker of the welding state data in the simulated environment which imitates the real environment;
• and
• receiving, by the motion control unit, as an input, worker motion data indicating a motion of welding by the worker from the simulated environment, operating the robot in the real environment by using the worker motion data instead of the prescribed motion data, and recording, as new prescribed motion data, the input worker motion data in the welding DB,
• wherein the motion control unit controls the robot by switching between an automatic mode of controlling the robot in accordance with prescribed motion data previously stored, and a manual mode of controlling the robot in accordance with worker motion data input in real time.