Automated welding workstation used for large tank and adopting robot

Abstract

An automated welding workstation used for a large tank and adopting a robot comprises a welding system and an automatic PLC (programmable logic controller) system, wherein the automatic PLC system is connected with a welding system through a network bus. The automated welding workstation is characterized in that the welding system comprises slide rails, positioners and a rack, the slide rails are sleeved with the rack, the positioners are located on center lines of the two slide rails, a six-axis linkage robot is mounted on the rack, and a welding gun is fixed on the six-axis linkage robot. Full automation of the welding system can be realized, welding seams are more smooth and flat, the welding accuracy is high, the space positioning accuracy can be 0.1 mm, the welding quality is good, and deformation is small; the six-axis linkage robot moves flexibly in space, so that the welding gun can move to all positions of the tank and can weld welding seams in various forms.

Description

technical field [0001] The invention relates to machinery in the technical field of automobile manufacturing, in particular to a robot automatic welding workstation for a large tank body. Background technique [0002] In the production process of tank cars, the technologies related to tank cars mainly include production technology, design technology and testing technology. In the production technology, the welding production of the tank body is particularly important. The quality of the tank body welding is directly related to the quality of the entire project, Construction efficiency, construction cost, safety reliability and economic benefits during operation. In the prior art, two methods are usually used for tank body welding: ① Manual welding is used. Manual welding has the following disadvantages, the welding speed is very slow, the welding efficiency is low, the welding production cycle is long, and the time cost is high. All welding is performed manually Production...

AI Technical Summary

Problems solved by technology

Although the special machine for automatic welding of girth welds and the special machine for automatic welding of longitudinal welds have faster welding speed, which saves time and cost to a certain extent, the scope of their welding processing is limited to a single girth weld or longitudinal weld. The degree of welding is too low, and the welding quality still cannot fully meet the needs of the tank welding process; while the automatic welding machine for girth welds and longitudinal welds also has a relatively fast welding speed, and can also complete girth welds and longitudinal welds at the same time Automatic welding work, but some equipment has strict restrictions on the length of the tank, and cannot process some large tanks, and its welding range is limited to girth welds and longitudinal welds, and other accessories and fillet welds cannot be realized Fully automated welding, welding does not have "flexibility" and cannot be welded according to the actual situation of the weld, and the welding quality cannot fully meet the needs of the tank welding process, and the cost performance is not high

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