| 摘要 |
PURPOSE:To reduce the number of workers and working time in manufacturing structures such as beams etc., by arranging processes such as assembling, surface welding, reversing, back welding etc. on a consecutive line, and performing carrying of the machines for work by a roller conveyor etc. CONSTITUTION:A web 1 and upper and lower flanges 2 are tacked by an assembler 10, carried to a surface welding machine 20 by a roller conveyor 7, and upper face of the web 1 and flanges 2 are welded continuously. Then, it is inserted to a reversing device 30 by the conveyor 7, rotated by 180 deg., carried to a back side welding machine 40, and both sides of the back of the web 1 are applied with fillet weld. It is then carried to a chamfering and piercing device 50, and chamfering and piercing and applied automatically by gas cutting. Then, it is shifted to assembling position 60 by the conveyor 7 and a stiffener 4 is welded to one side of the web 1. Next, it is inverted by a monorail hoist 8 etc., and carried to an assembling position 70. A stiffener is welded to the back of the web 1 and loaded on a pallet 80. |
