Centering device for steel tube welding

Abstract

The invention discloses a centering device for steel tube welding. The device comprises a bottom plate, wherein a workbench is fixed on the upper part of the bottom plate; an arc-shaped groove is formed in the upper surface of the workbench; the workbench is cylindrical; three grooves are formed in the outer ring of the workbench at intervals; the three grooves from bottom to top of the workbenchare rotationally connected with an annular ring A, an annular ring B and an annular ring C respectively; the side end of the annular ring A is in threaded connection with a fixing screw A, the side end of the annular ring B is in threaded connection with a fixing screw B, and the side end of the annular ring C is in threaded connection with a fixing screw C; a supporting rod A perpendicular to theannular ring B is fixed at the side end of the annular ring B; a sleeve A is fixed on the supporting rod A; the sleeve A is in threaded connection with a locking screw A; and a supporting rod B perpendicular to the annular ring C is fixed at the side end of the annular ring C. According to the centering device for steel tube welding, the centering angle of two steel tubes is accurately controlled, more convenience is brought to the welding process, centering of the steel tubes is more accurate, operation is simpler, and the labor is saved; and the cutting angle of the head of the steel tube is better controlled, cutting is relatively convenient, and the welding speed of the steel tubes is improved.

Description

technical field [0001] The invention relates to the field of steel pipes, in particular to a steel pipe welding centering device. Background technique [0002] In the field of steel pipes, it is necessary to weld two steel pipes of different lengths together. During the welding process, the two steel pipes need to be centered. In traditional welding, one heats the two steel pipes against each other, and the other person welds them again, especially When welding two steel pipes at an angle, the welding process is cumbersome. In the past, the welder lay down on the ground and checked whether the two pipes were skewed when connecting two pipes. The environment is unfavorable, it is difficult for us to find a relatively flat ground, and it requires two people to operate at the same time, which is time-consuming and laborious. When the two steel pipes to be welded form a certain angle, it is necessary to additionally cut the head of the steel pipe to form a certain angle, and Th...

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Problems solved by technology

[0002] In the field of steel pipes, it is necessary to weld two steel pipes of different lengths together. During the welding process, the two steel pipes need to be centered. In traditional welding, one heats the two steel pipes against each other, and the other person welds them again, especially When welding two steel pipes at an angle, the welding process is cumbersome. In the past, the welder lay down on the ground and checked whether the two pipes were skewed when connecting two pipes. The environment is unfavorable, it is difficult for us to find a relatively flat ground, and it requires two people to operate at the same time, which is time-consuming and laborious. When the two steel pipes to be welded form a certain angle, it is necessary to additionally cut the head of the steel pipe to form a certain angle, and The cutting angle is not easy to control, and the cutting is time-consuming and laborious

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