A DEVICE FOR WELDING STRUCTURES, SUCH AS MOTOR-VEHICLE BODIES OR PARTS THEREOF, CONSTITUTED BY LOOSELY PREASSEMBLED, PRESSED SHEET-METAL ELEMENTS

摘要

In a device for welding structures, such asmotor-vehicle bodies or parts thereof (for example,sides), constituted by loosely preassembled, pressedsheet-metal elements, a station for welding theelements includes two rotary drums for rapidly changingthe frames for positioning the elements to be welded inthe operative position, according to the type ofstructure to be welded. The various positioning framesare rotated by rotors and guided on annular tracks oneach rotary drum. A sector of each annular track canbe separated and moved along a line transverse theconveyor line for the structures to be welded in orderto bring a certain positioning frame into the operativeposition.