Resistance seam welding machine

Details Resistance seam welding machine Resistance seam welding machine

B - Operations, Transporting

23

K

327/78

B23K 11/06 (2006.01) B23K 11/08 (2006.01) B23K 11/30 (2006.01)

Patent

CA 2023806

21 ELPATRONIC AG, Baarerstrasse 117, CH-6300 Zug, Switzerland Case 89-145/CH Switzerland Resistance Seam Welding Machine Abstract What is described is a compact resistance seam welding machine wherein the upper electrode roller (14) is provided on a pivotally mounted arm (12) instead of on a pendulum roller head. The lower electrode roller (16), which is disposed below the upper electrode roller (14), is provided on a rigid lower arm (8) as usual. The pivotal mounting (10) of the arm (12) consists of a stack of copper foils (102) on the side adjacent to the lower arm (8) and of a steel strip (101) on the side remote from the lower arm (8). The steel strip (101) and the copper foils (102) are each clamped, on the one side to the machine frame (4) and on the other side to the opposite end of the arm (12). The arm (12) is therefore pivotally mounted on the principle of a parallelogram linkage, while the pivotal mounting (10) serves for the transmission of welding current to the upper electrode roller (14) at the same time. The pivotal mounting (10) only permits the upper electrode roller (14) a vertical movement up and down. The construction described renders it possible to avoid an expensive pendulum roller head and to make the 22 resistance seam welding machine more compact in construction without losing satisfactory guidance of the upper electrode roller (14) vertically and in the welding direction. Fig. 3

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