Robot automatic welding workstation for large tank and welding method using robot automatic welding workstation for large tank

Abstract

The invention discloses a robot automatic welding workstation for a large tank and a welding method using the robot automatic welding workstation for the large tank. The robot automatic welding workstation for the large tank comprises a welding system and a PLC automatic control system which is connected with the welding system through a network bus. The robot automatic welding workstation for the large tank is characterized in that the welding system comprises sliding rails, positioners and a rack; the rack is installed on the sliding rails in a sleeved mode; the positioners are located on the center line of the two sliding rails; the rack is provided with a six-axis linkage robot fixedly provided with a welding gun. The PLC automatic control system controls the welding route of the welding system through a driver. By the adoption of the robot automatic welding workstation for the large tank and the welding method using the robot automatic welding workstation for the large tank, full automation of the welding system can be achieved; welding joints are more smooth and flatter; the welding precision is high; the space positioning accuracy can reach 0.1 mm; the welding quality is good; deformation is small; as the space actions of the six-axis linkage robot are flexible, the welding gun can be moved to each portion of the tank and can weld welding joints of 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. [0002] The invention also relates to a method for realizing welding by using the automatic welding workstation of the large-scale tank robot. Background technique [0003] 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 sl...

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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