| 摘要 |
PURPOSE:To execute automtic welding with high welding efficiency, without generating any unwelded part, by detecting the center between parallel members at all times, running a moving truck on a platelike member along the center, and welding both the members by a welding torch on the truck. CONSTITUTION:A welding device 1 is suspended between long materials L, is stopped once in the upper part of a bottom plate P, positioning rods 4, 5 are advanced, and when projections 4A, 5A are brought into press-contact with the end face of the longe material L, the device 1 is set in parallel in the center between the materials L. Subsequently, the device 1 is set down on the bottom face P, and from the welding start position, fillet welding of the material of both sides is started at the same time. When a truck 3 reaches the end part of the material L, a transfer material T is detected by a detector, and the truck 3 stops running automatically. Subsequently, the rods 4, 5 are drawn in, a welding device 6 is run along guide rails 7, 8 and the remaining welding is executed continuously. |
