| 摘要 |
<p>The present invention concerns a method and a device for automatic exchange of electrode tips for electrodes used during machine point welding, in particular, robot welding. The method during automated exchange of electrode tips during point welding, for example, when robot welding sheet metals, comprising of steps in which an electrode unit comprising holder, shaft and tip is brought into position for removal of the tip and in which the tip is gripped by one gripper (4b), whereby the shaft is gripped by another gripper (4a) and that the grippers are caused to move apart in a straight linear motion demonstrating considerable acceleration, whereby the tip is pulled loose from the shaft. The device demonstrating a demounting device (2) for demounting a tip (6) and a magazine (3) for delivery of new tips, is characterised by the demounting device demonstrating two grippers (4a and 4b) that are arranged next to each other and that can be manoeuvred linearly forwards and backwards in a manner that is rotationally stable, and by the grippers each demonstrating a gripping means (5a and 5b, respectively) for the acceptance of the shaft and the tip, respectively, whereby the gripping means (5b) that holds the tip (6) is able to pull the tip away from the shaft (7) that is held by the other gripping means (5a).</p> |
