Movable robot

A movable robot comprising:

• a robot arm which performs an operation for a machine tool;
• a carriage which supports the robot arm and which moves the robot arm to a predetermined installation position so that the robot arm can perform the operation;
• a vision sensor which is supported by the carriage together with the robot arm and which captures an image of recognition information provided on the machine tool when the robot arm is placed at the predetermined installation position;
• a partner information receiving section which receives a partner information regarding the machine tool for which the robot performs the operation;
• and
• a controller which determines whether the image captured by the vision sensor or information derived from the image corresponds with the partner information received by the partner information receiving section at the time the robot arm is placed at the predetermined installation position by the carriage and which sets the robot arm to be a state in which the robot arm can perform the operation.