| 摘要 |
PURPOSE:To weld an ejected product which is released of tentative fastening to an exactly assembled member having no deviation with high efficiency by fastening tentatively both ends of a lower flange material welded with partition plates to rotary type auxiliary means for holding and welding respectively the web materials on both sides and the upper flange material which are tentatively fastened. CONSTITUTION:Both ends 4 of a lower flange material 1 welded with a prescribed number of partition plates 9 are tentatively bolted to rotary type auxiliary means 10, 16 for holding. Web materials 2 on both sides are tentatively bolted to the means 10 and are rotated so that the members are welded in an easy position. An upper flange material 3 is likewise bolted to said means and is welded in an easy position. The tentative fastening bolts are removed and the flange part of the means 10 is retreated and is horizontally held by a suitable ejecting base 20, by which said part is ejected. The assembly is made with high efficiency and the bolt holes are positioned exactly without deviation by tentative fastening. The assembly in the post stage is thus made easy. |
