Device for producing tailored blanks by cutting welding sheets to be joined

A device for producing tailored blanks with a workpiece carrier for the sheets (15a, 15b) that are to be joined into the tailored blank in the butt joint by welding and with a plurality of laser welding heads (14a, 14b) which are arranged one behind the other above the workpiece carrier and along the butt joint seam to be welded and can be moved with an advancing device (11a, 11b), wherein the heads can each be aligned with the joint using positioning means,

• wherein at least two combined laser cutting and welding heads (14a, 14b) are carried by extension arms (16a, 16b), which are carried by at least two independent arms (13a, 13b), which are each associated with independent units (11a, 11b) of the advancing device, wherein the extension arms (16a, 16b) are designed to be movable on the arms (13a, 13b), and in that the positioning means can adjust the distances of the units (11a, 11b) in the direction of the butt joint and also the distances of the cutting and welding heads (14a, 14b) in the transverse direction to the butt joint wherein the laser cutting and welding heads (14a, 14b) are carried by the extension arms (16a, 16b) with displacement in the advance direction with respect to the arms (13a, 13b) in such way that they can assume a position directly side by side relative to the advance direction or can be readjusted to be in line in the advance direction.