Stand for welding machine head of equipment for automatically welding large elbow

A technology of automatic welding and welding head, applied in welding equipment, auxiliary welding equipment, welding/cutting auxiliary equipment, etc., can solve the problems of undiscovered and automatic welding difficulties, achieve low manufacturing cost, improve welding quality, and simple structure Effect
CN101045275AInactive Publication Date: 2007-10-03ๆŽๆ–‡็ง€
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
ๆŽๆ–‡็ง€
Publication Date
2007-10-03
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

A weld head supporting frame for the automatic welder of great elbow is composed of a beginning segment, an intermediate segment, a regulating plate, a final segment and a base. It features that said all segments are sequentially linked to become an arc shape whose circular center is coincident with that of great elbow, so ensuring that the welding direction is always perpendicular to welded seam, resulting in high weld quality.
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Description

technical field

[0001] The invention relates to a device for automatic welding technology, in particular to a welding machine head support for automatic welding of the inner welding seam of a large elbow. Background technique

[0002] At present, the welding of large elbow welds in my country adopts manual welding. The so-called large elbow is a large-diameter high-pressure steel pipe connector used in high-pressure pipelines such as oil transportation, gas transportation, and coal slurry transportation. The pipe diameter is above 630mm. These pipes usually withstand high pressure above 100MPa. As shown in Figure 1, the large elbow is formed by molding and welded by two semi-elbows with upper and lower symmetry. There are four welds, which are longitudinal arch welds AA' arc, CC' arc and longitudinal concave weld. Seam BB' arc and DD' arc, where AA' and DD' arcs are longitudinal outer welds, and BB' arc and CC' arcs are longitudinal inner welds. These four longitudinal wel...

Claims

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