Six station broaching machine

A machine tool for machining a plurality of relatively angularly disposed surfaces on each of a plurality of identical workpieces in a succession of identical repeated machine cycles, which comprises:

• a stationary frame,
• a rotatable table,
• index mechanism for successively rotatively indexing said table about an axis in predetermined equal steps such that said table completes exactly 360.degree. rotation in a predetermined number of index rotations,
• a plurality of machining mechanisms mounted on said frame for rectilinear traverse relative to said table in identical parallel forward machining strokes perpendicular to the axis of said table and return idle strokes,
• a plurality of work holders on said table each effective to clamp a workpiece on said table in fixed relation thereto, said work holders being equally spaced radially from the axis of rotation of said table and equally angularly spaced thereon,
• each of said machining mechanisms comprising means for machining surfaces at each traverse stroke on a plurality of workpieces which are perpendicular to the axis of the table but which surfaces, due to the different indexed positions of the workpieces, are angularly positioned with respect to each other on each workpiece by an amount related to the index rotation of each workpiece between successive cuts,
• means for alternately actuating said machining mechanisms in rectilinear machining strokes and for actuating said index mechanism in repeated cycles to machine surfaces of said workpieces at each cycle which are angularly disposed to surfaces machined during a contiguous cycle.