Welding seam shooting tool and process thereof

Abstract

The invention discloses a welding seam shooting tool and a welding seam shooting process. The shooting tool comprises a walking trolley (1) walking above a barrel weld joint through a guide mechanism,wherein the walking trolley (1) is an arc-shaped mechanism, a through hole for shooting is formed in the center of the walking trolley (1), a negative film (2) covers the through hole, the guide mechanism comprises an annular guide rail (5) installed along an inner wall of the cylinder body and a guide hook (4) installed on the walking trolley (1), and the guide hook (4) is hooked on the annularguide rail (5). The welding seam shooting tool is advantaged in that the structure is simple, the shooting tool is convenient to use, and 100% flaw detection can be effectively carried out on a welding seam in the cylinder body.

Description

technical field [0001] The invention relates to a tooling and a filming process for flaw detection and filming of welding seams (especially closing seams), and belongs to the technical field of welding quality detection. Background technique [0002] At present, in the processing and manufacturing process of the cylinder of heat exchangers and other equipment, it is necessary to carry out non-destructive inspection of the welded seam; the conventional inspection method is "a kind of photographing of the vertical seam of the side of the ship" adopted by the Chinese patent CN201720605092.5 device", which cannot be directly applied to the cylinder, especially for small-diameter or sealed cylinders with only operating holes, which cannot effectively perform 100% flaw detection, so that the quality of the manufactured products cannot be guaranteed. For this reason, some enterprises have developed a kind of "small and medium diameter submerged arc welded pipe welding seam filming ...

AI Technical Summary

Problems solved by technology

[0002] At present, in the processing and manufacturing process of the cylinder of heat exchangers and other equipment, it is necessary to carry out non-destructive inspection of the welded seam; the conventional inspection method is "a kind of photographing of the vertical seam of the side of the ship" adopted by the Chinese patent CN201720605092.5 device", which cannot be directly applied to the cylinder, especially for small-diameter or sealed cylinders with only operating holes, which cannot effectively carry out 100% flaw detection, so that the quality of the ex-factory products cannot be guaranteed

For this reason, some enterprises have developed a kind of "small and medium diameter submerged arc welded pipe welding seam filming tooling" as disclosed in Chinese patent CN201220173697.9, which effectively utilizes the handle and positioning plate inserted into the pipe body to perform filming inspection of the weld seam. However, its operation method is not flexible and convenient enough, and at the same time, it cannot guarantee that all the welds of the entire ring structure will be filmed 100%

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