Tailor welding device applied to box girder

Abstract

The invention discloses a tailor welding device applied to a box girder, comprising: an external pressing system for pressing each plate of the box girder during the tailor welding process and an external pressing system for forming each plate of the box girder The inner cavity forming system of the inner cavity forming, the external pressing system includes the gantry, the pressing mechanism and a pair of clamping mechanisms, and the pressing mechanism is set above the box beam; the inner cavity forming system includes the inner tube of the workpiece, the traction frame and Traction mechanism, one end of the inner tube of the workpiece is connected with one end of the traction frame, and the other end of the traction frame is connected with the traction mechanism, the inner tube of the workpiece and the traction frame move in the inner cavity of the box beam under the traction of the traction mechanism, and when the inner tube of the workpiece moves , The gantry moves synchronously with the inner tube of the workpiece, and the gantry drives the pressing mechanism of the external pressing system and a pair of clamping mechanisms to move synchronously with the inner tube of the workpiece. The device has the advantages of high degree of automation, good forming of the box beam workpiece, small deformation, convenient operation and high efficiency.

Description

technical field [0001] The invention relates to the technical field of box girders, in particular to a tailor welding device applied to box girders. Background technique [0002] The cross-sectional shape of the box girder is the same as the usual box section, and generally consists of an upper cover plate, left and right side plates and a lower bottom plate. The box girder inner cavity forming system can give a forming force to the inner cavity of the box girder, preventing the box girder from being deformed to the inner cavity by external force during the forming process of the box girder, and at the same time ensuring the position of the plate during the tailor welding process . [0003] It is difficult to ensure the cross-sectional shape of the box girder during the welding process. There are problems such as welding thermal deformation, deviation of the plates during the welding process, and difficulty in correcting the long plates during the splicing process. Conten...

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Problems solved by technology

[0003] It is difficult to ensure the cross-sectional shape of the box girder during the welding process, and there are problems such as welding thermal deformation, deviation of the plates during the welding process, and difficulty in correcting the long plates during the splicing process, etc.

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