OIL-RING ASSEMBLY APPARATUS

摘要

The present invention relates to an oil ring assembly apparatus capable of assembling an oil ring consisting of an outer ring and an inner ring accommodated in the inner circumferential groove of the outer ring on a ring groove of a piston. Moreover, the oil ring assembly apparatus comprises: a ring supply unit to vertically stack a plurality of oil rings and to supply the oil rings one by one; an assembly station prepared on one side of the ring supply unit and having an assembly space for the oil ring and the piston; a ring loading unit to move the oil ring transferred from the ring supply unit to the assembly space; and a ring assembly unit to expand the diameter of the oil ring in order to press the inner ring toward the inside of the inner circumferential groove of the outer ring in the assembly space, and to press the outer ring toward a ring groove of the piston while reducing the expanded diameter of the oil ring when the piston is loaded in the assembly space. Provided is the oil ring assembly apparatus having effects of reducing labor costs while significantly improving productivity by quickly, correctly, and automatically assembling an oil ring on a piston; and automatically assembling an oil ring on a piston while completely preventing an inner ring of the oil ring from being separated while the oil ring is assembled in the piston.