Pretreatment device used before metal pipeline welding operation

Abstract

The invention relates to the technical field of welding pretreatment devices, and discloses a pretreatment device used before metal pipeline welding operation. The pretreatment device comprises a containing base, a supporting block is slidably connected to the upper surface of the containing base, and a rotating block is rotationally connected to the surface of the side, facing a containing block,of the supporting block. Two movable blocks are slidably connected to the surface of the side, back to the supporting block, of the rotating block, arc-shaped clamping blocks are fixedly connected tothe surfaces of the sides, back to the rotating block, of the movable blocks, two connecting movable blocks are fixedly connected to the surfaces of the sides, facing the rotating block, of the two movable blocks correspondingly, and the ends, away from connecting rotating blocks, of two rotating rods are rotationally connected with the two connecting movable blocks correspondingly. According tothe pretreatment device used before metal pipeline welding operation, rust on the outer surface of a metal pipeline is comprehensively polished, the effect of later-period welding of the metal pipeline is improved, and meanwhile the working pressure of workers during pretreatment before metal pipeline welding is reduced.

Description

technical field [0001] The invention relates to the technical field of welding pretreatment devices, in particular to a pretreatment device used for metal pipeline welding operations. Background technique [0002] Metal pipes are commonly used materials for construction, water supply, and industrial equipment. Generally, metal pipes are connected by welding when they are connected. Rust, if the rust on the outer surface of the metal pipe is not removed during welding, it will affect the welding effect of the metal pipe and cause the welding to be weak. Most of the existing pretreatment methods for metal pipes before welding are manual rust removal. And then increased the working pressure of the staff when welding, slowed down the speed of metal pipeline welding. Contents of the invention [0003] (1) Solved technical problems [0004] Aiming at the deficiencies of the prior art, the present invention provides a pretreatment device for metal pipes before welding, which ha...

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Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a pretreatment device for metal pipe welding, which has the advantages of comprehensively grinding and rusting the metal pipe before welding, and solves the problem of rust on the outer surface of the metal pipe before welding. Troublesome problems with trace handling

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