WELDING TORCH WITH BUILT-IN VISUAL SENSOR

PROBLEM TO BE SOLVED: To provide a welding torch with a built-in visual sensor capable of exactly detecting a state of a welding part at all times and detecting image information capable of realizing excellent welding. SOLUTION: The torch is provided with a cylindrical main cylinder 10, a slat 63' which is rotated around a support shaft 61 installed in the center part inside the main cylinder and prevents the collision by changing a spatter track 94 flying to a visual sensor, and a shielding gas supply port 50' which jets the shielding gas from a main cylinder side wall to a direction deviating from the center shaft of the main cylinder and rotates the slat 63'. As a result, the spatter is collided with the slat 63' and spattered, the collision and adhesion with the visual sensor can be prevented, the image information is always detected without blocking a field of view by the adhesion of the sputter, the welding track and a welding condition can be corrected, thereby excellent welding can be realized. COPYRIGHT: (C)2003,JPO