Welding plant for section-variable aluminum alloy long pipe fittings

Abstract

The invention discloses a welding plant for section-variable aluminum alloy long pipe fittings. The welding plant comprises a rotary welding plant and an automatic welding tractor. The automatic welding tractor is provided with a full-automatic welding handle. The rotary welding plant comprises a base and a rotary frame, upright frames are respectively arranged at two ends of the base, two ends of the rotary frame are respectively mounted on the upright frames at the two ends of the base by hollow shafts, and workpiece clamping devices are respectively arranged on two sides of the rotary frame; rails are disposed on one side of the rotary welding plant, the automatic welding tractor is arranged on the guide rails, and a radial adjusting mechanism is arranged between the full-automatic welding handle and the automatic welding tractor; and elastic barriers are respectively arranged on the hollow shafts at two ends of the rotary frame. The welding plant has the advantages that the quality of products is improved under the condition without high-end welding equipment such as welding robots and special welding machines, the production efficiency is improved, and the repair rate and the rejection rate are reduced.

Description

technical field [0001] The invention relates to an aluminum alloy welding device, in particular to a welding device for variable cross-section aluminum alloy long pipe fittings. Background technique [0002] At present, on locomotives such as railway main line EMUs and AC high-power electric locomotives, the welding of aluminum alloy 5083 materials with a plate thickness of 2.5mm and the longitudinal butt welding of variable cross-section aluminum alloy long pipe fittings with butt joints usually use welding robots and welding machines. Otherwise, it is easy to cause welding defects such as incomplete penetration, porosity, incomplete fusion, inclusion, slump and poor back shape, which may easily cause failure of the welded joint, thereby causing the failure of the entire welded structure, which will have a negative impact on driving safety. However, welding robots and welding machines are expensive, which increases production costs. Contents of the invention [0003] The...

AI Technical Summary

Problems solved by technology

[0002] At present, on locomotives such as railway main line EMUs and AC high-power electric locomotives, the welding of aluminum alloy 5083 materials with a plate thickness of 2.5mm and the longitudinal butt welding of variable-section aluminum alloy long pipe fittings with butt joints usually use welding robots and welding machines. Otherwise, it is easy to cause welding defects such as incomplete penetration, porosity, incomplete fusion, inclusion, slump and poor shape of the back, which may easily cause failure of the welded joint, thereby causing the failure of the entire welded structure, which will have a negative impact on driving safety.

However, welding robots and welding machines are expensive, which increases production costs

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