摘要 |
An end effector includes a pair of machining tools. The pair of machining tools is separated by an interval in one direction perpendicular to a tool rotational axis and rotatable around the tool rotational axis. The pair of machining tools is position-controlled, and is force-controlled in a machining direction perpendicular to the one direction and an axial direction of the tool rotational axis, and is torque-controlled around the tool rotational axis. |