Patent ID: 6070496
Filing Date: 2000-06-06
Classification: B23Q,B24B,Y10T

Abstract:
A crank pin phase indexing apparatus comprising:a main spindle, which is driven by a drive motor, wherein the main spindle rotates about a main spindle axis;a chuck attached to the main spindle for holding an end of a crankshaft;a phasing rotary shaft connectable to the chuck, wherein the phasing rotary shaft rotates about an axis offset from the main spindle axis;a lock device for locking the phasing rotary shaft against rotation about its own axis, wherein the lock device includes a phase indexing shaft that is coaxial with the main spindle; anda releasable coupling for releasably connecting the phasing rotary shaft with the shuck, wherein the releasable coupling is a meshing coupling having a pair of opposed coupling plates, at least one of which is movable toward and away from the other, wherein each coupling plate has a set of teeth facing the opposite coupling plate such that the teeth of one coupling plate mate with those of the other coupling plate when the coupling plate are apart by a predetermined distance.