Universal adjustable box beam splicing and welding device

Abstract

The invention discloses a universal adjustable box beam splicing and welding device, comprising a web inner clamping device, a web positioning device, and a flange plate positioning and clamping device. The web positioning device comprises clamping boards of a bottom part and an upper part, which are connected with each other; a T-shaped boss is arranged at the center of the bottom part; through holes II are formed at the both sides of the bottom part; the flange board positioning and clamping device comprises clamping blocks; a through hole I and a T-shaped groove are formed on each clamping block; the T-shaped boss is matched with the T-shaped grooves to form double-rectangular sliding rail fit; the two clamping blocks are connected with a screw rod III through the through holes I; an outer extending lug plate is arranged at the outer side of each clamping block; connection holes are formed on the lug plates; the connection holes are connected with a screw rod II; the through hole II 1 is connected with the screw rod II; the screw rod II is matched with a nut II; the web inner clamping device comprises two inner splints; the two inner splints are connected through the screw rod I; and the inner splints are matched with the clamping blocks in position. The universal adjustable box beam splicing and welding device is applicable to assembling and pairing box beams with various sizes, so that the splicing precision and the welding speed of the box beams can be improved.

Description

technical field [0001] The invention relates to the technical field of machinery, in particular to a universal adjustable box beam assembly and welding device. Background technique [0002] The box girder structure is widely used in the field of hoisting machinery due to its simple manufacturing process and strong bearing capacity, and its characteristics are more obvious in the field of bridge cranes and portal cranes. In the manufacturing process of bridge cranes and portal cranes, the assembly and welding of main girders, end girders, and outriggers takes a long time. Most of these structures are box girders, so simplifying the manufacturing process of box girders can be used to reduce product costs. a breakthrough point. In the traditional box girder assembly and welding process, the verticality between the web and the flange plate and the verticality between the partition plate and the flange plate need to be guaranteed by their own tooling, which increases the difficu...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to aim at the box girder assembling and welding process existing in the prior art, the verticality between the web and the flange plate and the verticality between the partition plate and the flange plate need to be guaranteed by tooling, and the production is difficult. Time-consuming and labor-intensive, as well as the problem of low assembly accuracy; provide a universal adjustable box girder assembly and welding device; it can assemble box girders of various sizes, and improve the assembly accuracy and welding speed of box girders

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