| 摘要 |
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 adapted to be supported at a distal end of the robot arm, a torch nozzle axially movably and rotatably supported at a distal end of the housing, a shaft axially movably and rotatably mounted in the housing and movable in response to rotation and/or axial movement of the torch nozzle, and a switch or switches mounted in the housing 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.
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