Portable clamp assisting cross beam and longitudinal beam assembling and welding

Abstract

The invention provides a portable fixture for assisting the assembly and welding of transverse and longitudinal beams, which includes a supporting beam, a jack and a clamping mechanism, the supporting beam is arranged on the top of the jack and is perpendicular to the jack, and the clamping mechanism includes two claws provided with folding hooks , the two claws are rotatably connected with the support beam respectively, and the two claws are separated from the two sides of the jack in the form of folding hooks, and a clamp for clamping the T-shaped bar is formed between the two claws. Based on the above structure, the fixture can reduce the gap between the longitudinal beam and the panel, make the gap close to zero, and improve the welding quality of the longitudinal beam; at the same time, the fixture does not affect the continuity of the welding operation, which is beneficial to the operation of the welding robot , but also saves the work of making, dismantling, and grinding the diagonal brace, which improves the welding efficiency and saves costs; in addition, the fixture is easy to operate, safe, low in labor intensity, compact in overall appearance, and can be used repeatedly , can be produced in batches, easy to promote, and has high economic efficiency.

Description

technical field [0001] The invention relates to the technical field of ship welding equipment, in particular to a portable fixture for assisting the welding of transverse and longitudinal beams. Background technique [0002] In the current ship construction, most of the beams and longitudinal beams on the ship sections adopt T-shaped structure, and the two generally adopt the method of cross assembly welding for installation: first draw the installation position lines of the beams and longitudinal beams on the panel, and then The web side of the beam and the longitudinal beam is aligned with the installation position line, and the web is perpendicular to the panel, and then the joint between the web of the beam and the panel is fixed by tack welding, and then the longitudinal beam is welded in the same way . When the above method is used for cross assembly welding, after the beam is welded, the panel area of ​​the welded beam web will have obvious wavy deformation, resultin...

AI Technical Summary

Problems solved by technology

When the above method is used for cross assembly welding, after the beam is welded, the panel area of ​​the welded beam web will have obvious wavy deformation, resulting in gaps of different sizes between the longitudinal beam web and the panel (according to the production department On-site measurement feedback shows that the gap size is between 6 and 12mm. For details, please refer to figure 2 ), which further increases the welding difficulty of the longitudinal beam, resulting in uneven weld size after welding of the longitudinal beam, defects such as incomplete penetration, slag inclusion, and notch stress concentration in the weld, which seriously affects the welding quality of the longitudinal beam and reduces the beam structure. fatigue re

Images