| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem of requiring a presser member for pressing down a metallic housing and a metallic holder, and of causing risk of interfering between a laser beam emission unit and a shield gas spray nozzle in the presser member, in a laser welder for welding the metallic housing and the metallic holder being a metallic thin plate.SOLUTION: The metallic housing having a projection having a recessed groove and the metallic holder are combined, and a notch part of a presser plate is inserted into the groove of the projection projected from the holder by penetrating through a hole of the holder. The presser plate is provided with a hole for screwing in a plunger, and when screwing in the plunger, the metallic housing and the metallic holder are fixed. The fixed metallic housing and the metallic holder are set on a rotary shaft of a rotational driving body. Since the laser welder does not require the presser member, the laser beam emission unit and a shield gas spray do not interfere with the presser member. |
