Abstract: A loader-unloader system for loading and unloading workpieces, into a machine tool wherein each workpiece is held in position for rotation about a longitudinal axis during which various machine operations may be performed. The tool comprising a loading chute or conveyor adapted to deliver articles in succession to a loading position, an unloading chute or conveyor adapted to receive workpieces, and a loader-unloader assembly. The loader-unloader assembly comprises a track extending along an axis parallel to the longitudinal axis of the machine, a trolley movable along the track and means for moving said trolley back and forth along the said track. A loader clamping head assembly is mounted on the trolley, and an unloader head assembly is mounted on the trolley. Each assembly includes a head for gripping a workpiece, means on the trolley for mounting said head for swinging movement into and out of position adjacent the machine and for reciprocating movement toward and away from the axis of said machine.

Abstract: A loader-unloader system for loading and unloading work pieces, particularly work pieces having thin portions, in a machine tool wherein each work piece is held in position for rotation about a longitudinal axis during which various machine operations may be performed by the tool comprising a loading conveyor adapted to deliver articles in succession to a loading position, an unloading conveyor adapted to receive work pieces, and a loader-unloader assembly. The loader-unloader assembly comprises a track extending along an axis parallel to the longitudinal axis of the machine, a trolley movable along the track and means for moving said trolley back and forth along the said track. A load-vacuum clamping head assembly is mounted on the trolley, and an unload-vacuum head assembly is mounted on the trolley.