To enable one worker to consistently perform works from an auto matic inspection to automatic welding, which are suitable for the high quality welding of piping having a small diameter at a narrow place.
The tube edge holding mechanisms 1, 2 of piping 9A, 9B are connected with connecting bars 3 constituted by putting plural bars in parallel, and an inspection welding head 4 movable on the connecting bars 3 is provided. The tube edge holding mechanisms are provided with means for holding a tube shaft at a specific position and fixing the edges of the piping regardlessly of a tube diameter, and the positions of the tube edge holding mechanisms are made adjustable in the X, Y and Z directions to the connecting bars. The straight line drive means of a fixing part and the rotating drive means 8 of a rotating part are given by the inspection, welding head to the fixing part 41 moving on the connecting bars and the rotating part 42 rotating around the shaft of the piping. A groove inspection sensor 5 for inspecting a gap between butted grooves and the apparent shift of a shaft and a TIG welding torch 6 are mounted on the rotating part.
TAKEUCHI ITSURO
FUJISAWA HIROSHI
KOIKE MICHIHIRO
AKIYOSHI KOJI
IGARASHI MIKIO
YAMAUCHI SHINYA
HIRASAWA YOSHIHIRO
MORITA MEITOKU
NIKKI CONSTRUCTION CO LTD
AIKO ENGINEERING KK