| 摘要 |
<p>This invention provides an orbit controlling method of a robot which method can execute a welding work by moving a work along a predetermined orbit with respect to a fixed welding torch. The welding torch (1) is fixedly disposed while a work (W) is clamped by a robot hand. Before the welding work is started, the work is located to each target point (a1, a2) and work coordinates positions (T1, T2) corresponding to the hand operation positions are taught at each target position. When the welding work is carried out, various robot operation portions inclusive of the robot arms and robot hand are driven in such a fashion that the moving position of the work coincides with a series of calculated work coordinates positions, by utilizing the playback function of the robot. As a result, welding is carried out along a predetermined orbit on the work, although the work position relative to the tip of the arm (4) changes with the movement of the work.</p> |
