Magnetic clamping device

laser weldingautomatic

This customer-specific clamping device is used for laser welding of complete body components for rail vehicles nd it represents a negative of the outer vehicle contour. After the device has ben equipped, this rail-bound device drives into the laser welding cabin on rails. Structure of the device The device consists of a movable base frame with independent drive. The component support is equipped with magnets, which can be switched on in different groups. In the extentionof the clamping device there is a so-called clamping bridge station. This contains various clamping bridges for positioning, clamping nd holdingduring tacking and welding. Furthr assembly parts, which can be fastened to the component support, complete the device. Functions of the welding device All contour-rolled sheets, reinforcements and framework structures are electro-magnetically clamped, controlled by programs. Mounting parts are positioned by the clamping bridges. First, the roof cladding sheets are welded together. Indicator lights show the operator the position and number of clamping bridges required for tacking the cross beams. Then further parts are positioned, clamped, tacked and welded by means of clampingbridges and other device elements. Efficiency through electro-permanents magnets Clamping and unclamping with electro-permanent magnetic clamping plates is done by magnetizing or demagnetizing through a current surge. By subdividing the entire clamping surface into individual magnetic groups, different assembly groups can be welded on the same device. Adjusted to the workpiece contours, regulary distributed high clamping and holding forces are generated.