| 摘要 |
A device and method for the low-resistance welding of metal sheets with a high cycle rate, having the following features: a) a U-shaped main body (1), in the two horizontally mounted limbs of which there are arranged a lower stroke drive element (2) and an upper stroke drive element (7) which are situated opposite one another, wherein the lower stroke drive element (2) is followed in the direction of the action of force by a lower electrode holding device (3) and the upper stroke drive element (7) is followed in the direction of the action of force by an upper electrode holding device (6), b) a lower welding electrode (11) which is held by the lower electrode holding device (3) and an upper welding electrode (5) which is held by the upper electrode holding device (6), wherein the lower welding electrode (11) bears an in each case centrally arranged lower stamping head (10) which tapers to a point, and the upper welding electrode (5) bears an upper stamping head (8), c) a joining partner feed device (4) which conveys the joining partners (9) for welding into the intermediate space between the two stamping heads (10, 8), d) a current source which is adapted to the joining partners (9) and which provides the welding current. |
