Pipeline all-position welding back shielding and back weld observation system

Abstract

The invention provides a pipeline all-position welding back shielding and back weld observation system, and belongs to the technical field of pipeline welding. The system comprises a supporting device, a driving device, a camera device, a sector protective gas hood and a gas guiding pipe; the driving device comprises a servo motor and a drive shaft, the servo motor is connected with the drive shaft in a driving mode, the supporting device and the camera device are mounted on the drive shaft separately, the sector protective gas hood is mounted on the camera device, and the output end of the gas guiding pipe is communicated with the sector protective gas hood. The pipeline all-position welding back shielding and back weld observation system has the advantages that operation is flexible, easy and convenient, the argon consumption is low, the working efficiency is high, the weld quality is good, the automation degree is high, the universality is high, moreover, the welding position of theweld can be observed in real time through the camera device, and convenience is brought to in-time adjustment, so that the quality of weld formation is ensured.

Description

technical field [0001] The invention relates to the technical field of pipeline welding, in particular to a pipeline all-position welding backside protection and backside weld seam observation system. Background technique [0002] Back weld seam protection is required when welding high alloy, titanium and titanium alloy, nickel and nickel alloy pipes. Backside protection is a key factor in ensuring the quality of welded joints. The traditional back argon protection method is commonly used in engineering, that is, argon is filled from one end of the pipe to the weld; the disadvantages of this method are obvious: (1) it is a waste of gas (a large amount of gas); (2) it needs to be inflated in advance , It takes a long time; (3) In the construction of long pipelines, soluble paper should be added to the inner welds to block the air, and the pipelines should be cleaned to remove them after welding. Moreover, in the traditional pipeline welding process, it is impossible to time...

AI Technical Summary

Problems solved by technology

The traditional back argon protection method is commonly used in engineering, that is, argon is filled from one end of the pipe to the weld; the disadvantages of this method are obvious: (1) it is a waste of gas (a large amount of gas); (2) it needs to be inflated in advance , it takes a long time; (3) In the construction of long pipelines, soluble paper should be added to the inner welds to block the air, and the pipelines should be cleaned to remove them after welding.

Moreover, in the traditional pipeline welding process, it is impossible to timely adjust the welding parameters and ensure the quality of the back weld formation by observing the formation of the weld on the back of the pipe in time.

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