Abstract: A quick-change tool holder includes locating means for repeatably locating a cutting unit at a predetermined angular position with respect to a support member. The support member includes an axial bore for receiving a tubular shank on the cutting unit. The tubular shank of the cutting unit includes a keyway having a first locating surface along one side thereof. The clamping mechanism includes a key having a second locating surface along one side thereof. Upon actuation, the clamping mechanism imposes a torque force on the cutting unit to rotate the first locating surface on the cutting unit into abutting relationship with the second locating surface on the key to repeatably locate the cutting unit at a predetermined angular location. The torque force imposed on the cutting unit by the clamping mechanism therefore overcomes any inaccuracies in center-height adjustment attributable to the tolerance between the key and its corresponding keyway.

Abstract: A quick-change tool holder includes a center-height adjustment mechanism for adjusting the center height of the cutting tool. The quick-change tool holder includes a tool support member which is adapted to be mounted on a lathe turret or mounting block of a machine, a cutting head formed with a seat for receiving a cutting tool, and a clamping mechanism for clamping the cutting head to the support member. The tool support member includes an axial bore which receives a tubular shank of the cutting unit. The clamping mechanism is disposed within the axial bore and includes a pair of radially expandable locking elements to engage the tubular shank of the cutting unit. The clamping mechanism includes a key which engages with a corresponding keyway on the tubular shank for angularly locating the cutting unit. An adjustment mechanism is provided for rotating the clamping means about a longitudinal axis of the support member to change the angular location of the cutting unit.

Abstract: An apparatus is provided for transmitting rotation about and translation along a first axis from a driver to a toolholder with a spindle along an axis non-parallel from the first axis. A shaft is rotatably mounted within a sleeve which is slidably mounted within a bore along the first axis. The sleeve has an inclined surface at one end which when the sleeve is translated engages an interface member to provide displacement.

Abstract: A milling cutter having a cutter body rotatable about its central axis with a peripheral wall on the cutter body and insert pockets and clamp recesses located in the peripheral wall. The insert pockets have locating surfaces for positioning an insert when placed in the pocket. There is also a clamp for releasably clamping an insert when the insert is placed in position in the pocket. The clamp freely assumes an orientation identical to that of the insert so that planar contact is made with the insert.