Portable Automatic Girth Welding Machine

Abstract

The invention relates to a portable automatic circular seam welder. Each of a welder fixing ring and a welder rotating ring is an open ring, one ends of the open rings are in hinged connection while the other ends of the same are in bolt connection, the welder fixing ring and the welder rotating ring are rotatably connected through a rolling wheel seat and a rolling wheel, hexagonal socket set screws with cone points are arranged on the welder fixing ring at 120-degree intervals, a tooth groove is formed in the welder rotating ring which is connected with a motor driving wheel through the tooth groove, and a welding gun is adjustably connected with the welder rotating ring through a welding gun clamp. The portable automatic circular seam welder is of an open structure and is suitable for welding of pipe fittings which are placed transversely, vertically and obliquely, so that working environment adaptability of the welder is improved greatly; a wire feeder and the welding gun are fixed on the welder rotating ring, so that supplying of welding wires is enabled to be free of influence of rotating of the welder, continuity in welding is guaranteed, and working efficiency is improved; under constraints of specific size of pipes, the welder is enabled to be wider in application range by bidirectionally adjusting height of a set screw and the welding gun.

Description

technical field [0001] The invention relates to a circular seam welding machine, in particular to a portable automatic circular seam welding device. Background technique [0002] In the field of mechanical manufacturing, welding is a very important process, and its application fields are quite common. Various welding devices have been developed for welding products of different shapes. Among various welding products, products with circumferential welds are more common. [0003] For the welding process of products with circumferential welds, the rotary welding device is commonly used. This type of device is usually driven by a motor to rotate a worktable. The workpiece to be welded is fixed on the worktable and rotates with the worktable. The welding torch is not fixed. It moves and completes the welding of the circumferential weld seam on the workpiece during the rotation of the workpiece. [0004] In production practice, it is found that girth welding is the bottleneck o...

AI Technical Summary

Problems solved by technology

[0004] In production practice, it is found that girth welding is the bottleneck of the entire manufacturing process. On the one hand, there are too many human factors in the current tooling and welding methods, and the level of worker operation in the production process will restrict production efficiency and production quality. On the other hand, in recent years The increase in labor cost and the reduction of skilled workers have also greatly increased the production cost of the factory, so it is urgent to develop a rotary welding machine with a high degree of automation and stable weld quality

Images