A seam guide device for longitudinally welded pipe production

Abstract

The invention relates to the technical field of welded pipe welding processing, and specifically proposes a weld guide device for straight seam welded pipe production, including a support frame, an adjustable idler group mechanism assembled on the support frame, and a welding guide mechanism assembled on the support frame And the welding walking device assembled on the welding guide mechanism; the adjustable roller group mechanism can support the welded pipe horizontally to realize the parallel positioning of the weld seam, and the welding walking device is assembled on the welding guide mechanism, and the submerged arc welding Part of the welding walking device can be used as a supporting carrier, and the long frame-shaped guide rail cooperates with the welding walking device for walking guidance, thereby replacing the manual automatic guiding welding of the welding position of the welded pipe. The welding quality is controllable and is not affected by human factors. In addition , There are two coaming plate assemblies arranged on the welding walking device, so the flux can be collected and reused in a centralized manner during the whole welding process, which improves the utilization rate of the flux and avoids waste.

Description

technical field [0001] The invention relates to the technical field of welding processing of welded pipes, and specifically proposes a welding seam guiding device for production of straight seam welded pipes. Background technique [0002] Longitudinal welded pipes, steel pipes made of hot-rolled or cold-rolled steel plates or steel strips, and pipes obtained by straight seam welding on welding equipment are called straight seam welded pipes, named for their welds in a straight line; this The invention provides a weld guiding device for the production of straight seam welded pipes, which is mainly used for guiding welding of large diameter straight seam welded pipes. During the production and manufacturing process of large diameter straight seam welded pipes, after being bent and formed, the welding butt joint position is a line parallel to the axial direction. During the welding process, after the pre-welding of the weld seam position is completed, it is necessary to weld th...

AI Technical Summary

Problems solved by technology

[0003] Under the existing technology, submerged arc welding is basically used for welding the inner and outer sides of welded pipes. In the traditional welding process, manual welding is mainly carried out by using semi-automatic submerged arc welding equipment. When welding, the direction of the weld seam needs to pass Manual control, so the quality of the weld seam is greatly affected by manual operation, and it is more difficult to weld the inside of the pipe than the outside of the pipe, and the operation is more inconvenient. In addition, during the submerged arc welding process, it is necessary to lay Sprinkle flux, and the torch head always pushes the flux on both sides outward during the welding process. Therefore, in the actual welding process, more flux does not actually participate in the welding process, and there is an obvious waste of flux

Images