JPH0293084U - - Google Patents

Description

[Brief explanation of the drawing]

1 and 2 are a side view showing a part of a clamping device for a butt welding machine according to an embodiment of the invention, and a side sectional view showing a main part thereof, respectively;
3 and 4 are a side view and a front view, respectively, showing the conventional clamping device, FIG. 5 is a view showing a welding process, and FIG. 6 is a view showing defects after welding. In the figure, 1 is the material to be welded, 1a, 1b are both ends thereof, 2a, 2b, 7a, 7b are clamp devices, 11a, 11b, 16a, 16b are adjustment devices,
13a etc. are shafts. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims (1)

[Scope of Claim for Utility Model Registration] In order to perform resistance welding by abutting the end faces of plate-shaped workpieces having end faces of a predetermined width against each other, both ends of the workpieces to be welded together are clamped, A pair of adjustment devices are provided on both sides of the material to be welded, which are clamped via shafts that are perpendicular to each other and can freely rotate, and which can be moved toward and away from each other, and these adjustment devices press the end surfaces of the material to be welded together A clamping device for a butt welding machine, characterized in that the two end faces are brought into contact over the predetermined width by abutting each other.