Double-metal mechanical composite pipe end inner wall surfacing device

Abstract

The invention discloses a bimetal mechanical composite pipe end inner wall surfacing welding device; it includes: a welding mechanism: the welding mechanism includes a welding torch, a welding torch adjusting rod for adjusting the angle of the welding torch, and a welding power source electrically connected to the welding torch adjusting rod ; Welding torch horizontal rotation mechanism: the welding torch horizontal rotation mechanism includes a first drive mechanism and a second transmission mechanism, the first drive mechanism is provided with a driving roller, and the second transmission mechanism is provided with a driven roller, and the driving roller It is perpendicular to the driven roll and meshes with each other. The second transmission mechanism is provided with a dovetail plate, and the dovetail plate is fixedly connected with the welding torch adjustment rod; wire feeding mechanism: the wire feeding mechanism includes a wire guide pipe and The four-roller wire feeder that feeds the welding wire used for surfacing welding into the wire guide pipe; the invention has reasonable design, convenient operation and strong practicability, can complete the automatic surfacing welding of the inner wall of the pipeline, and greatly reduces the surfacing welding Labor intensity, high welding efficiency.

Description

technical field [0001] The invention relates to the technical field of surfacing welding, in particular to a surfacing device for the inner wall of a bimetal mechanical composite pipe end. Background technique [0002] The bimetallic composite pipe is composed of an outer carbon steel base pipe and an inner corrosion-resistant alloy liner in a mechanical or metallurgical manner. It organically combines the anti-corrosion performance of corrosion-resistant alloy steel with the excellent mechanical properties of carbon steel pipe. Bimetallic mechanical composite pipes have been rapidly applied and developed in the fields of petroleum, natural gas, and chemical industry due to their high cost performance. The problem of welding technology is usually solved by sealing welding or surfacing welding on the inner wall of the pipe end. However, if manual surfacing is used for surfacing, on the one hand, the surfacing efficiency is low, and on the other hand, the quality is difficult...

AI Technical Summary

Problems solved by technology

The advantage of this technical solution is that it can continuously complete the welding of multiple surfaces of the workpiece at one time, but its disadvantages are that the structure of the fully automatic surfacing welding machine is complex, the frame and support take up a large space, and it uses multiple drives The motor drives the welding torch to move in all directions, the manufacturing cost is high, and the surfacing speed is slow, and the thickness of the surfacing layer cannot be adjusted. Therefore, for the existing automatic surfacing machine, while achieving automatic surfacing welding, it is also necessary to reduce the Cost, reduce the volume of the surfacing welding machine, adopt automatic surfacing welding and automatic wire feeding at the same time, improve the surfacing welding efficiency, simple structure of the surfacing welding machine, adjustable surfacing layer thickness, etc., to further improve the existing

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