| 摘要 |
<p>A welding torch for use in a welding robot is prevented from being deformed or otherwise damaged on collision with the work while the welding robot is being taught. The welding torch comprises a housing (2K) adapted to be supported at a distal end of the robot arm (3), a torch nozzle (2a) axially movably and rotatably supported at an end of the housing, a shaft means (2f, 2g) axially movably and preferably rotatably mounted in the housing (2K) and movable in response to rotation and/or axial movement of the torch nozzle (2a). and at least one switch (2i, 2A) mounted in the housing (2K) and actuatable in response to rotation and/or axial movement of the shaft for generating a signal to stop the movement of the robot arm. When the torch nozzle collides with the work, the switch means is actuated to stop the movement of the robot arm.</p> |
