Abstract: First and second metal portions are tightened integrally on both surfaces of one or plural sheets of electrostrictive element bodies polarized in the thickness direction and divided in two uniform halves using a tightening tool, thereby a flexible vibrator is provided, and a cutting tool is installed to an output end portion of the flexible vibrator and a work is cut by ultrasonic vibration generated in the flexible vibrator. Workability of the cutting working is improved and the structure is simplified, and the device as a whole is made compact.

Abstract: A locking cam for locking a pair of tool elements together is disclosed. The locking cam member is rotatably mounted in one of the tool elements such that a clamping surface engages a female gib surface formed on the other tool element. Clamping screws exert a rotative force on the cam member so as to bring the clamping surface into contact with the female gib surface and forceably lock the tool elements together.

Abstract: A duplicating system, especially for use with a multipurpose woodworking machine capable of performing lathe turning operations. The system includes a support table, a carriage adapted to be slidably mounted on the machine, and a locking rack and pinion for raising and lowering the table relative to the carriage. A tool support is positioned on the table and includes a base having a low friction pad for engaging the table top, a follower for contacting a pattern, and a multi-edge cutting tool rotatably mounted on a tool rod for engaging a workpiece. An insert guide is mounted on the tool rod to hold the cutting tool in position. The base has a set screw which engages a circumferential groove in the shank of the tool rod so that the cutting tool can be quickly and accurately positioned relative to the follower.

Abstract: A cutter head releasably mounted on a tool holder and to be fitted with an exchangeable cutting insert while the tool holder is adapted to be secured to a lathe or the like; a substantially U-shaped bushing being articulatedly mounted in a recess formed in an end of the cutter head so as to define a receiver socket adapted to receive an engaging head of a drawbar longitudinally displaceable within the tool holder; the arrangement being such that with the engaging head of the drawbar located in said receiver socket, a traction force exerted on the drawbar results in transverse abutting surfaces of the bushing being displaced into a clamping abutment with corresponding transverse abutment surfaces formed on the tool holder.

Abstract: A tool assembly which comprises a tool holder and tool block having respective alignable opposed slots and further includes a registration key secured in one pair of aligned slots and a thrust key secured in the other pair of aligned slots, the thrust key having an upper wall section adapted to engage the wall of the other tool holder slot to thereby cause the tool holder to rotate until the wall of the opposite slot is pressed against a corresponding wall of the registration key.

Abstract: A rotationally symmetrical tool assembly includes a first component constituted by a tool holder; a second component constituted by a tool head and being removably attached to the first component such that engagement faces of the first and second components are in a contacting relationship with one another and are oriented perpendicularly to the rotary axis of the tool assembly. A fitting bore is provided in one of the components and a guide bore is provided in the other of the components. A securing pin projects from the fitting bore and extends into the guide bore for determining and maintaining a desired angular position of the second component relative to the first component.

Abstract: A clamping arrangement for clamping a pin mounted cutting insert on a tool holder by means of a plurality of clamping balls located within a ball guide groove formed in the tool holder and displaceable into a clamping abutment with the insert by means of a ball displacing member articulated to the tool holder.

Abstract: A recess attachment with preset quick change tooling for use on a multiple spindle automatic machine includes a base formed and adapted to be mounted at a work station on an automatic machine. The base is movable in a defined direction during a machining operation and has a slide mounting surface in a plane forming a small acute angle with the direction of movement. A slide is positioned on the slide mounting surface and there are springs attached to the base and the slide inhibiting relative movement therebetween. A tool holder is removably mounted on the slide and there is an adjustment member positioned on the tool holder and a cooperating stop on the slide. The tool holder has a tool receiving opening and there are means for fastening a cutting tool in the opening. The base and slide move in unison to a precutting position.

Abstract: An elongated grooving or threading tool has a cutting section and a rearward cemented carbide section which are, respectively, held together in axial alignment by a threaded fastener and a drawbolt which engage the intermediate section and hold the respective connections under compression.

Abstract: The present invention provides an ultrasonic oscillation machining apparatus wherein accurate oscillation machining can be attained using a small vertical ultrasonic oscillating element which oscillates with a high frequency. The ultrasonic oscillation machining apparatus comprises a wide oscillating body divided into a plurality of units by one or more slits formed in said wide oscillating body with opposite end portions left thereon, a plurality of vertical ultrasonic oscillating elements secured to one end faces of said individual units of said wide oscillating body for producing vertical oscillations of such a frequency that said opposite end portions of said wide oscillating body are positioned at loop portions of oscillations of the wide oscillating body, and a bite provided at one of said end portions of said wide oscillating body which is positioned at one of the loop portions of oscillations of said wide oscillating body.

Abstract: A tool is clamped to a holder by a clamping mechanism carried by the holder. The clamping mechanism includes a plurality of clamping jaws having longitudinally extending shanks. The clamping jaws are actuated by a longitudinally reciprocable drawbar carried by the holder. The jaws are normally spring-biased to laterally inward, non-clamping positions and are actuated to a clamping position by means of a longitudinally movable drawbar carried by the holder. Actuation of the jaws occurs in a two-phase operation. In an initial phase, the shanks are displaced laterally outwardly so as to overlie a shoulder of the tool. In a subsequent phase, the shank is moved longitudinally into contact with the tool shoulder to clamp the tool against the holder.

Abstract: A lock rod is provided extending along and reciprocally movable along an axis Y-Y and having a cylindrical cross section near one end. Two circumferentially spaced depressions are located in the cylindrical surface for receiving locking elements in an unlocked position. Extending from the first depression is a ramp inclined with respect to axis Y-Y and from the second depression is a groove parallel to axis Y-Y for driving locking elements radially outwardly to abut against a toolholder shank to lock it onto a tool support member.

Abstract: A locking assembly for locking components of a machine tool together including a rotatable bar having wedges reversibly movable thereon for simultaneously engaging wedge receiving spaces of one of the tool components while a portion of the wedges are secured in corresponding space in another tool component to thereby provide full face to face interlocking engagement of the wedges and the tool components. Machine tool components interlocked with the locking assembly of the invention which may include a vibrational energy dissipating cavity are also disclosed.