| 摘要 |
PURPOSE:To reduce the size and weight of a welding device for metallic plates by traveling a plasma cutting device having plural torches roughly in parallel with clamping devices and cutting the clamped tail end of the preceding plate and the front end of the succeeding plate. CONSTITUTION:The tail end of a preceding metallic plate 1 and the front end of a succeeding metallic plate 2 which are held adequately projected are securely clamped to clamping devices 3, 4. The tail end of the plate 1 and the front end of the plate 2 are cut by a plasma cutting device which travels roughly in parallel with the devices 3, 4 and is provided with torches 8A, 8B. The device 4 clamping the succeeding metal 2 is parallel moved by a moving device 6 in the device 3 direction of the plate 1 and the cut surfaces of both cut plates 1, 2 are butted. A laser beam is irradiated to the butt part from a traveling laser working head 7 by which the butt part is welded. |
