| 摘要 |
PROBLEM TO BE SOLVED: To simultaneously and automatically effect the vertical fillet welding on both sides, and to efficiently assemble and manufacture a box girder structure. SOLUTION: A vertical fillet automatic welding equipment for box girder which is installed in a main girder 10 in an attachable/detachable manner and simultaneously executes the fillet welding in the vertical direction on right and left sides, is provided with a setting bar 11 to be attachably/detachably fixed in the perpendicular direction between an upper flange 3 and a lower flange 1 of a box girder structure, an elevating/lowering truck 13 which is arranged in an elevating/lowering manner along the setting bar 11 and elevated/ lowered corresponding to the welding speed by an elevating/lowering device 14, a folding arm device 18 in which a horizontal arm 15 is attachably/ detachably fitted to the elevating/lowering truck 13 and both tip parts can be moved respectively at an arbitrary position by driving a plurality of turning arms 17A-17C, and a torch head 19 fitted to the tip part of the folding arm device 18.
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