Automatic welding method and controller

Abstract

The embodiment of the invention provides an automatic welding method and a controller, the automatic welding method is applied to a welding workstation, and the welding workstation comprises a positioning system and a welding system; the automatic welding method comprises the steps that the positioning system is controlled to fix a workpiece to be welded to a welding station; and after the positioning system fixes the to-be-welded workpiece to the welding station, the welding system is controlled to weld the to-be-welded workpiece. According to the embodiment of the invention, automatic control and one-time welding complete penetration in the welding process can be realized, welding deformation is reduced, the welding speed is increased, the welding wire consumption is reduced, two procedures of groove milling and backing welding are canceled, equipment, personnel and sites are reduced, and the production efficiency is improved. The time of two working procedures of groove milling and backing welding and the time for transferring and waiting for traveling caused by the two working procedures are saved, welding spatter is little, and only one person is needed for guarding.

Description

technical field [0001] The invention relates to the field of welding technology, in particular to an automatic welding method and a controller. Background technique [0002] The welding technology in the prior art has the following disadvantages, especially for the welding of long cylindrical workpieces with a length of more than 9 meters or a plate with a wall thickness of less than 10 mm: the butt weld of long and thin-walled members cannot be completely melted in one weld. penetration, it is difficult to achieve automatic welding, there are many processes that require manual participation, the quality of the weld is difficult to guarantee, and it is easy to produce welding defects without penetration, the back is difficult to penetrate, and the quality of the back of the weld is unstable and inefficient in manual rooting welding. Problems such as low efficiency of ordinary MAG welding have become the bottleneck for raising the capacity of the boom. The existing boom is ma...

AI Technical Summary

Problems solved by technology

[0002] The welding technology in the prior art has the following disadvantages, especially for the welding of long cylindrical workpieces with a length of more than 9 meters or a plate with a wall thickness of less than 10 mm: the butt weld of long and thin-walled members cannot be completely melted in one weld. penetration, it is difficult to realize automatic welding, there are many processes that require manual participation, the quality of the weld is difficult to guarantee, and it is easy to produce welding defects without penetration, the back is difficult to penetrate, and the quality of the back of the weld is unstable and inefficient in manual rooting welding. Problems such as low efficiency of ordinary MAG welding have become the bottleneck of boom capacity improvement. The existing boom is manually grounded and then automatically welded to cover the surface. The process takes a long time and the welding filling is large, which easily leads to welding deformation. Most of the deformation is more than 5mm, and it is a typical wave-like instability deformation. It is difficult to correct after welding. Driving takes a lot of time, affects the efficiency of the entire production line, and takes up a lot of space, the amount of welding wire is large, and there is a lot of spatter after welding

Images