| 摘要 |
PURPOSE:To enable changing of direction of feeding of a filler wire according to welding position, by providing a welding torch and a position adjusting mechanism of filler wire feeding tube on the fixed frame of a welding truck and constituting this adjusting mechanism of position adjusting devices of three kinds. CONSTITUTION:A welding truck is moved along a metallic tube with progress of welding, and welding is performed in all position. In this case, the distance between a filler wire feeding tube 18 and a metallic tube 12 is adjusted by the first position adjusting device 22. Then, to change the pointing direction of a filler wire 1 in response to the change of welding position, a clamping screw 38 of the second position adjusting device 24 is loosened, and a frame 36 is oscillated around a fixed axis 34 to set rough pointing direction. Then, the pointing direction of the wire 11 is finely changed by the third position adjusting device 26. That is, a locking rod 52 is loosened by a knob 54 and turned in the direction of the arrow (d), and the pointing direction of the wire 11 is changed by rotating it as A, B, C, D, E, F. |
