Patent ID: 8910848
Filing Date: 2014-12-16
Classification: B23K,E04B,E04C

Abstract:
1. A system for manufacturing a beam having parts comprising a bottom flange, a top flange, a middle web plate, and at least first and second side web plates, said system comprising: an assembly conveyor that receives at least two of said beam parts, sets them together with pressure rolls of the assembly conveyor to form said beam with a final cross-section, and transfers the joined beam parts to an assembly device; an assembly device which receives the joined beam parts and which assembly device comprises: a welding machine that welds together the joined beam parts by welding the middle web plate at least at one point to the bottom flange, and at least at one point to the top flange to form a jig beam, and by welding a first one of the side web plates to a first edge of the jig beam, and at a distance from the first side web plate, to an opposite, second edge a second one of said side web plates by welding both the first side web plate and the second side web plate on at least one side to the bottom flange and top flange; an adjusting device; and an energy measuring device that measures energy input into the joining point of the parts being connected during the joining and transmits the measured energy amount to said adjusting device; wherein said adjusting device receives from the energy measuring device the measured energy amount, calculates the energy amount to be input into a joining point of the parts being welded at least partly on the basis of the measured energy amount, and transmits the calculated energy amount to be used in welding to the welding machine; further comprising: a turning device that: