Welding seam positioning device and welding method using welding seam positioning device

Abstract

The invention relates to a welding seam positioning device and a welding method using the welding seam positioning device. The welding seam positioning device comprises a ceramic liner, a high-strength flat plate and a suction mechanism; the ceramic liner is fixed at the bottoms of a first plate unit and a second plate unit; the high-strength flat plate is pressed at the tops of the first plate unit and the second plate unit, and the suction mechanism comprises a first magnetic suction cup, a second magnetic suction cup and a handle fixedly connected with the first magnetic suction cup and thesecond magnetic suction cup. The welding method comprises the steps that the high-strength flat plate is pressed at the tops of the first plate unit and the second plate unit, the first plate unit and the second plate unit are sucked and tightly attached to the bottom surface of the high-strength flat plate through the first magnetic suction cup and the second magnetic suction cup of the suctionmechanism, the ceramic liner is fixed at the bottoms of the first plate unit and the second plate unit, and then welding starts to be conducted. By means of the welding seam positioning device and thewelding method, welding seams are continuous, the welding defects are effectively reduced, the risk of damaging base materials of steel plates is avoided, and the automation degree is significantly increased.

Description

technical field [0001] The invention relates to the field of welding technology, in particular to a welding seam positioning device and a welding method using the welding seam positioning device. Background technique [0002] Generally, in order to solve the problem of misalignment of the steel plates on both sides of the butt weld when the panels (usually the bottom plate or the roof) of the bridge project are butt-jointed, a horse-board is usually used to assemble the bottom plate to be welded. However, in actual construction, the horse-board is more harmful. Large, the installation and removal of the horse plate itself is labor-intensive and time-consuming, and there is a risk of damage to the base metal of the steel plate. At the same time, because of the existence of the horse plate, the weld seam is discontinuous, and the automatic welding operation cannot be realized. On both sides of the plate, the welding arc is started and extinguished continuously, and the arc is ...

AI Technical Summary

Problems solved by technology

[0004] The invention provides a welding seam positioning device and a welding method using the welding seam positioning device, which solves or partially solves the problem of discontinuous welding seam and easy welding seam defect caused by the assembly and positioning of the bottom plate in the prior art when the bottom plate is butt jointed. , there is a technical problem of the risk of damage to the base metal of the steel plate

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