Intersecting line dual-annular seam automatic welding machine

Abstract

An intersecting line double annular gaps automatic welding machine relates to a pipe annular gap welding device, comprising a machine tool body component, a dynamic device which is arranged on the machine tool body component, a workpiece platform which is movably arranged on the machine tool body component and operates reciprocating horizontal movements driven by the dynamic device, a primacy workpiece and a secondary workpiece lifting mechanism which are arranged on the workpiece platform and move horizontally with the workpiece platform, a fixture box which is arranged on the machine tool body component, a rotary fixture which is arranged on the fixture box and is driven by the dynamic device to clamp and carry the primacy workpiepce and the secondary workpiece to do rotary movements, a welding torch stent assembly which is arranged on the machine tool body component, an eccentric slide block mechanism which is arranged on the welding torch stent assembly, a welding torch component which is arranged on the slide block of the welding torch stent assembly and is driven by the slide block to realize the horizontal reciprocating movements. The welding torch component is provided with a welding torch which can realize the welding of the intersecting line between the primacy workpiece and the secondary workpiece. The pipe annular gap welding device has the advantages that the whole machine is controlled by a PLC and is welded by a way of rotating workpieces, and the workpiece rotation which is driven by adopting a stepping motor is correct in transmission.

Description

Technical field: [0001] The invention relates to a circular pipe circular seam welding device, in particular to an automatic welding machine for intersecting line double circular seams. Background technique: [0002] At present, for the automatic welding of round pipes, the method of spot welding before welding is adopted, and the workpieces are spot welded together first, and then welded, which is easy to load and unload the workpieces during welding, but the process is complicated. For the welding of pipeline intersecting lines, robots or numerical control systems are usually used to adjust the attitude and position of the welding torch during the welding process. The welding quality is good but the cost is expensive. In the automatic welding technology, the welding torch adjustment mechanism is indispensable. Usually we need to manually adjust the welding torch in a certain range in a certain range. The linear adjustment mechanism currently has a rack and pinion type, a d...

AI Technical Summary

Problems solved by technology

[0002] At present, for the automatic welding of round pipes, the method of spot welding before welding is adopted, and the workpieces are spot welded together first, and then welded. In this way, it is easy to load and unload the workpieces for welding, but the process is complicated.

For the welding of pipeline intersecting lines, robots or numerical control systems are usually used to adjust the posture and position of the welding torch during the welding process. The welding quality is good but the cost is expensive

In the automatic welding technology, the welding torch adjustment mechanism is indispensable. Usually, we need to manually adjust the welding torch in a certain range in a certain range. The linear adjustment mechanism currently has a rack and pinion type, a dovetail slide type, and a double guide. Column slider type, etc. These adjustment structures are strong and durable but are not compact for welding guns that are generally not very heavy

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