ELECTRIC RIVET WELDING APPARATUS Russian patent published in 1995 - IPC

FIELD: welding of metal products. SUBSTANCE: apparatus has two pneumatic drives with casings pivotally attached with their dead ends on opposite ends of bench. Pneumatic drives have hollow stems pivotally secured on casing and connected with pneumatic manifold. Apparatus is further provided with article datuming and retaining mechanism formed by two power cylinders. One cylinder is rigidly fixed on bench, with retainer rigidly attached to stem end of this cylinder. Other cylinder is pivotally secured on bench, with pressure member pivotally secured on stem end of this cylinder. EFFECT: increased efficiency, enhanced reliability in operation and simplified construction. 3 dwg