JPS6229874U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an embodiment of the TIG welding device according to the present invention, Fig. 2 is a bottom view of the welding torch section viewed from below, and Fig. 3 shows the arc and wire current waveforms. Fig. 4 is a plan view of a flat plate welded using this device, Fig. 5 is a bottom view of a welding torch for four telephone poles, and Fig. 6 is a diagram of the welding torch that will be the bottom plan. Bottom view showing the position of electrodes due to direction change, A and B are 3 electrodes, C
, D is a drawing showing the case of four electrodes, FIG. 7 is a perspective view showing the concept of the welding torch according to the second embodiment, and FIG.
The figure is a schematic diagram showing the positional relationship between an electrode and a filler wire in normal TIG welding, and FIG. 9 is a plan view of a flat plate with a groove in which the welding method changes midway. 1... Work to be welded, 3... Filler wire, 5, 5,
5... Gate turn-off thyristor, 6... Arc power supply, 7... Wire power supply, 10... Welding torch.

Claims (1)

[Claims for Utility Model Registration] 1. A plurality of tungsten electrodes arranged on a circumference centered on the axis of a wire supplied to a welding torch,
A rotating electrode TI configured so that an arc current is applied to these tungsten electrodes in order to rotate the arc.
G welding equipment. 2 Utility Model Registration In the rotating electrode TIG welding device as set forth in claim 1, a welding torch axis is provided with a path for a filler wire, and a tungsten electrode having an end portion located away from the axis is connected around the axis. A device configured to rotate and move.