Circular pipe butt welding rapid positioning device and circular pipe butt welding method

Abstract

The invention relates to a round pipe butt welding quick alignment and positioning device and a round pipe butt welding method. The device includes a positioning sleeve, a clamping device, and a tensioning device. The positioning sleeve is a combined structure of two and a half positioning sleeves. Its axis direction has left and right symmetrical taper holes. There is a coaxial round hole between the two taper holes, thereby forming two There are a number of radial stepped holes intersecting with the two tapered holes and round holes on the outer periphery of the positioning sleeve; the joints on one side of the two and a half positioning sleeves are hinged; the clamping device includes ear plates on the two and a half positioning sleeves and Screw and nut mechanism connecting lugs. This round pipe butt welding method utilizes the structural characteristics of the taper hole and the step seam of the device, combines the bevel shape of the round pipe to be welded, and uses the clamping device and the tensioning device to realize the rapid and accurate alignment of the round pipe during butt welding. Positioning and tensioning solve the problems of poor accuracy, high labor intensity and low efficiency of manual alignment, positioning and tensioning operations, and meet the requirements of concentricity, weld gap size and no misalignment of round pipe butt welding.

Description

technical field [0001] The invention relates to a welding auxiliary device and a welding technology, in particular to a quick alignment and positioning device for butt welding of round pipes and a method for butt welding of round pipes. Background technique [0002] In the known technology, when the round pipe is butt-welded on site, the round pipe to be butt-welded is mainly moved manually, and the butt-welding is carried out through human observation, so the coaxiality is difficult to guarantee, and the labor intensity of the workers is very high; Seam gap control is mainly achieved by clamping welding rods or steel strips, which is easy to loose and lacks accuracy, which may eventually result in substandard products and waste. In short, the entire butt welding process is difficult to operate, the overall accuracy is poor, and the requirements for workers' operating levels are also very high. Contents of the invention [0003] The purpose of the present invention is to ...

AI Technical Summary

Problems solved by technology

[0002] In the known technology, when the round pipe is butt-welded on site, the round pipe to be butt-welded is mainly moved manually, and the butt-welding is carried out through human observation, so the coaxiality is difficult to guarantee, and the labor intensity of the workers is very high; Seam gap control is mainly achieved by clamping welding rods or steel strips, which is easy to loose and lacks accuracy, which may eventually result in substandard products and waste

In short, the whole butt welding process is difficult to operate, the overall accuracy is poor, and the requirements for workers' operation level are also very high

Images