Mechanical connection type connection pipe inner wall surfacing auxiliary device and method for conducting connection pipe inner wall surfacing through mechanical connection type connection pipe inner wall surfacing auxiliary device

Abstract

The invention discloses a mechanical connection type connection pipe inner wall surfacing auxiliary device and a method for conducting connection pipe inner wall surfacing through the mechanical connection type connection pipe inner wall surfacing auxiliary device. The auxiliary device comprises a cylinder (1) and a plurality of connecting devices. A connection pipe end positioning device (6) is arranged on an opening of one end of the cylinder (1). A plurality of cylinder connection fulcrums (9) matched with the connecting devices are arranged on the outer wall of the cylinder (1). Each connecting device comprises a cylinder connection pull plate (2), a connection pipe connection pull plate (3) and a connecting rod for connecting the cylinder connection pull plate (2) with the connection pipe connection pull plate (3), wherein the cylinder connection pull plate (2) and the corresponding cylinder connection fulcrum (9) are movably connected. The mechanical connection type connection pipe inner wall surfacing auxiliary device and the method have the advantages that production cost is reduced, production efficiency is improved, and the work environment is improved.

Description

technical field [0001] The invention relates to an auxiliary device for surfacing welding, in particular to a mechanically connected auxiliary device for surfacing welding on the inner wall of a connecting pipe and a method for using the device to perform surfacing welding on the inner wall of a connecting pipe. Background technique [0002] At present, for the inlet and outlet nozzles of pressure vessels with stepped outer walls, stainless steel surfacing on the inner wall of the nozzles needs to be carried out on idlers. The original method is to weld and connect the ribs between the connecting pipe and the cylinder. Each time the welding is completed, the connecting ribs will be cut off by gas, which cannot be reused, and there is a waste of time; the time required for welding and gas cutting to connect the ribs is relatively long Long, affecting production efficiency; and the surfacing welding of the inner wall of the connecting pipe is carried out in a heated state, and...

AI Technical Summary

Problems solved by technology

The original method is to weld and connect the ribs between the connecting pipe and the cylinder. Each time the welding is completed, the connecting ribs will be cut off by gas, which cannot be reused, and there is a waste of time; the time required for welding and gas cutting to connect the ribs is relatively long long, which affects production efficiency; and the surfacing welding of the inner wall of the pipe is carried out under heating, and the working environment temperature is high

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