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AssigneeInternational Standard Electric Corporation
InventorsJacob van Ravenzwaay, Larry Ord, Norman Nicol
Estimating the term…
A production line for mechanically assembling pistons into cylinders of an internal combustion engine block and for automatically mounting the split bearing for each piston connecting rod to the crankshaft of the engine. At one end of the line, the engine block is laid on end with the piston cylinders extending horizontally. A magazine with a generally cylindrical sleeve in alignment with each cylinder bore in the engine is supplied with pistons complete with connecting rods. The connecting rods are positioned facing the top of the engine block. A split bearing end cap for each piston is placed in suitable holders on the sides of the magazine. At one station of the line, a ram automatically pushes one or two pistons into the engine block. A nesting receiver is positioned to receive the end of a connecting rod and guide the bearing end of the rod onto the crankshaft. Thereafter the bottom split bearing end cap is carried to the crankshaft for connection to the top end cap of the connecting rod. This procedure is repeated, as necessary, to fit the remaining pistons into the engine cylinders.
A multiple station automatic assembly apparatus for inserting piston sub-assemblies into the bores of a piston engine block in which each piston sub-assembly includes a piston member with piston rings and a connecting rod with the remote end of said rod having one portion of a split bearing affixed thereat and in which the engine block has its crankshaft assembled thereon, the apparatus comprising a platform for holding an engine block on end with the engine crankshaft extending along one side of the engine block with the engine cylinder bores positioned in an alignment, a magazine block resting on said platform a predetermined distance from said engine block, a plurality of openings in said magazine block, a tubular member in each opening adapted to hold a piston sub-assembly axially alignable with a cylinder bore, means at certain of said stations for advancing selected pistons from respective tubular members into bores of said cylinder block, and means at said certain stations movable into the cylinder bores for receiving the bearing portion of a piston sub-assembly being advanced to carry the bearing portion of the piston sub-assembly onto the crankshaft.
An apparatus for assembling piston sub-assembly into the cylinder bore of a piston engine block in which the piston sub-assembly includes piston rings assembled thereon and a connecting rod, comprising a stationary holding member including a tubular passage confronting said cylinder bore and axially spaced therefrom, said passage including sleeve member having a tapering entry section for compressing piston rings as a piston sub-assembly is advanced toward a main section of said sleeve member closely adjacent the cylinder bore, means for advancing said sleeve member axially into abutting relation with said cylinder bore, said advancing means further operative to advance said sub-assembly from said sleeve member into said cylinder bore.
An automatically operable machine for assembling a plurality of piston assemblies into respective bores of an engine block, in which each piston assembly has assembled thereon a plurality of piston rings;
Dependencies are inferred from the claim text.