Abstract: A manufacturing plant, in accordance with one embodiment, includes a turntable, interchangeable pick-up, and clamping devices for assemblies at several working locations. The pick-up and clamping devices are assigned at least one processing robot, set up for joining operations, which performs the joining operations on the assemblies held by the pick-up and clamping devices. The turntables 1, 2 are assigned interchange stations, with which the pick-up and clamping devices on turntables can be replaced by others. The interchange stations are preferably designed as turntables with different storage locations for the pickup and clamping devices to be replaced. The different pick-up and clamping devices needed for processing various types of assemblies as well as grippers for the handling robots are introduced exclusively from outside in exactly the same way as the pre-fabricated parts being processed, if a change from one type of assemblies to another type is required.

Abstract: A roof module for a motor vehicle body (3) includes a reinforcing frame (2) and a roof panel (1) that is fastened thereto. The reinforcing frame (2) can be fastened to the motor vehicle body (3) by screw connections (8) and adhesive bonds (5). A roof module, which is both prefabricated with all accessories as well as painted and which can be placed onto the motor vehicle body (3) during final assembly is provided with the reinforcing frame (2) or the roof panel (1) having, on the edge thereof, a folded flange (11), which is shaped so that it has a U-shaped profile (12). An edge strip (10, 13) of the roof panel (1) or of the reinforcing frame (2) engages inside the U-shaped profile (12) and is bonded therein to the reinforcing frame (2) or to the roof panel (1). The roof module is larger in a vertical projection than a roof opening in the motor vehicle body (3).

Abstract: In a method for cutting structural components to be joined by laser radiation that is guided by a computer-controlled manipulation system provided with a nominal path for each structural component corresponding to a joining line that is curved as a result of at least one of the structural components being three-dimensionally shaped, the structural component surfaces of the structural components including the joining line are determined measuring technologically. Based on measuring results, the nominal path corresponding to a penetration line of the structural components to be joined is calculated. A marking is formed on a first one of the structural component surfaces. When performing the cut on the structural component surface provided with the marking, the resulting cutting gap and the marking are determining measuring technologically. When a deviation of the cutting gap from the nominal path is detected, the manipulation system is controlled to correct the deviation.