| 摘要 |
PURPOSE:To hold the welding accuracy highly without reducing the welding speed by measuring the arc current and voltage under welding and the feeding speed of welding wire and by comparing with the optimal welding conditions by inputting them into control box. CONSTITUTION:The data of the welding condition factors of the respective welding arc voltage, current, the feeding speed of welding wire 1, etc. concerning two welding torches are inputted into control device 10 in case of the fillet welding of the butt part 5' of flat bar 5 and tube 6 for instance. The control device 10 calculates the displacement quantity to the welding line of each weld ing torch from the empirical formula stored in advance and the data thereof and based on the result thereof, the movement of supporting metal fitting 7 and the angle adjustment of welding tip are performed, the displacement of welding torch is corrected, also the state thereof is fed back to the control device 10 and the adjustment in the projecting quantity of the welding wire 1 from the welding torch and the control of the welding torch position are performed.
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