Abstract: A chucking apparatus for a workpiece with honeycomb structure includes a table that can be supplied with vacuum and a clamping plate which can be placed on the table and which accommodates the workpiece in the region of an already profiled surface determined by the face ends of the honeycombs, whose receiving surface, which corresponds to the profiled surface of the workpiece, is provided with suction openings to the table. In order to provide advantageous chucking conditions, the clamping plate has an open-cell structure.

Abstract: The invention relates to a drill chuck which has a drilling needle receptacle device for removable receiving of a drilling needle (1), a hollow cylindrical magnetic holder for the drilling needle receptacle device and a coupling device for torque transfer from a drive device to the drilling needle receptacle device. The drilling needle receptacle device, in which a drilling needle (1) having a flattened end section (1?) can be received, has a receptacle element (7), at least two clamping bodies (10) and a clamping insert (6). The receptacle element (7) has at least one cylindrical section (72) having a recess (71) and the clamping insert (6) has counter-molded bodies (61) which supplement the clamping bodies (10) and which extend away from a stop disc (62). The stop disc (62) contacts a face of the cylindrical section (72) and has a lead-through opening (63) for the drilling needle (1).

Abstract: A center locator is operated with a hole center for enlarging a round opening and includes a center seat having a through hole centrally defined therein, wherein the through hole is adapted to allow a centering drill of the hole cutter extending through the center seat. At least one adjusting device is longitudinally mounted to the center seat and formed with an engaging portion, wherein the at least one adjusting device is expandable relative to the center seat for adjusting a distance between the engaging portion of the at least one adjusting device and a center of the center seat.

Abstract: A chuck for clamping workpieces or tools in a clamping space with a clamping force (F). The chuck includes at least two chuck jaws movable in translation along one clamping plane (E) in the direction of one center Z of the clamping space and a gear train located at least largely within the chuck for transfer of a driving torque of a drive motor, which can be coupled to the gear train by coupling means of the gear train, to the chuck jaws for movement of the chuck jaws. The coupling means able to be coupled to a corresponding coupling connection of the drive motor. The movement from the maximum size of the clamping space to the minimum size of the clamping space is executed via the gear train from the drive motor.

Abstract: A compact oldham-type floating reamer holder with holder and reamer portions which transfer torque therebetween via a floating member. The floating reamer holder includes an elastic element which axially biases the holder and reamer portions. In an operative position, the floating reamer holder is configured to automatically enable angular misalignment, parallel misalignment and axial translation between the holder and reamer portion axes. In a non-operative position, the reamer portion axis is co-aligned with the holder portion axis. And the elastic element at least partially overlaps the reamer portion.

Abstract: The invention relates to a screw-in tool (1) and to a tool holder (2) for such a screw-in tool. The screw-in tool (1) contains a tool head (3) and a tool shank (4) having an outer thread (5) and a supporting region arranged between the tool head (3) and the outer thread (5). According to the invention, the supporting region is formed by two conical bearing faces (6, 8) having different cone angles.

Abstract: A drilling tool includes at least two chip flutes and a chisel edge with a thinned region. The thinned region merges continuously into the chip flutes in such a way that the thinned region forms the end of the respective chip flute in the region of the chisel edge.

Abstract: The cutting tool (1), especially drill or milling cutter, comprises a base (3) which extends in an axial direction (2) and has an outer shell (14) with at least one interior recess (18) that extends in the axial direction (2), a supporting structure (16) having at least one separating piece (26) which separates a plurality of recesses (18) from each other being formed in the supporting structure. The cutting tool (1) is particularly a solid hard-metal tool. The supporting structure (16) ensures an efficient use of material.

Abstract: A rotary chuck for processing wafer-shaped articles comprises a chuck body having a series of gripping pins that are movable by sliding horizontally and in unison relative to the chuck body from a first position in which the gripping pins are relatively more retracted into the chuck body to a second position in which the gripping pins are relatively more extended from the chuck body and in which the gripping pins are positioned so as to support a wafer-shaped article of a predetermined diameter.

Abstract: Apparatus and methods for performing and controlling the sequence of steps in a multi-step machining process utilizing a plurality of drilling units, where each drilling unit is configured to perform at least one step of the multi-step machining process. Air pressure sensors in each drilling unit measure air pressures at the surface of a workpiece where the cutting tool of the drilling unit is engaged, which measured air pressures indicate air flow at the surface. These air flows in turn indicate the state of the machining at the surface of the workpiece, and based on the state of the machining, a machine control system will determine whether a drilling unit can perform its particular machining operation in the proper sequence on the workpiece.

Abstract: A tool holder for non-positively holding a rotatable tool by a receiving body containing a receiving opening with slits extending radially from the inner wall towards the exterior and running in the longitudinal direction of the receiving body. To permit a simple production process, the receiving body has an insert fixed into a receiving section.

Abstract: An ultrasonic machining module that includes an ultrasonic transducer, wherein the ultrasonic transducer is adapted to receive a machining tool; a vibration-isolating housing adapted to be both compatible with a machining system and to receive the ultrasonic transducer therein, wherein the housing further includes at least one modification for isolating all vibrations generated by the ultrasonic transducer when the device is in operation except axial vibrations transmitted to the machining tool, thereby preventing unwanted vibrations from traveling backward or upward into the machining system; and a connector in electrical communication with the ultrasonic transducer, wherein the connector is operative to supply electrical energy to the ultrasonic transducer, and wherein the connector is adapted to rotate at a predetermined rate of speed.

Abstract: The invention provides a clamping system (1) for a rotary tool (70), for example a milling cutter or drill. The clamping system (1) includes a base element (10), a collet (30) and a clamping nut (50), said clamping nut (50) friction-locking the rotary tool (70) within the base element (10) with the collet (30). In order to avoid a relative rotation of the base element (10) and the collet (30), the clamping system (1) has a form locking anti-twist protection which blocks a rotation of the collet (30) relative to the base element (10).

Abstract: Disclosed is a steering knuckle drilling device, including a drilling machine, a bottom plate, guide rails, hydraulic cylinders, fixtures, a support post and a support block. When in use, the present invention can simultaneously drill the left and right symmetric workpieces of a steering knuckle and can conveniently install and dismount the workpieces.

Abstract: A drill has a central axis, a front side, a circumferential surface, at least two main edges on the front side, which reach up to the circumferential surface and merge there with secondary edges, at least two central edges extending from the end of the main edge facing away from the circumferential surface, cutting surfaces associated with the main edges and central edges, chip flutes associated with the main edges and central edges and introduced into the circumferential surface, at least one cross edge adjoined by the ends of the central edges facing away from the main edges which passes through the central axis, a point thinning and chip run-up shoulders associated with at least the cutting surfaces of the central edges. An angle ? of the chip run-up shoulder decreases in the region of the point thinning towards the central axis as the distance from the front side increases.

Abstract: A tool gripping mechanism includes a tool holder and a shaft to which the tool holder is attached. The shaft is fixed to a rotary shaft of a spindle device. A plurality of magnets are disposed in pairs on concentric circles on surfaces of the tool holder and the shaft which face each other. When the tool holder is in a specific phase with respect to the shaft, the magnets of the tool holder and the magnets of the shaft attract each other, and the tool holder is aligned with respect to the shaft in that phase.

Abstract: A clamping device for releasably holding a tool holder shank is formed with an engagement bore in a rear end, and includes a housing having a bore in a forward end for receiving the tool holder shank, a drawbar reciprocally movable inside the housing and which in a forward end is provided with engagement means arranged to engage with an engagement formation inside the engagement bore of the tool holder shank, and which is formed with a drawbar aperture extending through the drawbar in a transverse direction of the same, and a cam shaft extending through the drawbar aperture. The cam shaft includes three cam formations and more precisely first and second spaced apart cam formations, which are journalled in seating apertures in the housing on opposite sides of the drawbar, and an intermediate third cam formation located between the first and second cam formations and positioned within the aperture of the drawbar. The drawbar is insertable into the bore from the forward end.

Abstract: A float type clamping mechanism is provided, comprising a workpiece pallet having a central post provided on its bottom surface and a chuck. The chuck can be releasably coupled to the central post. The chuck has a base, a top seat, a piston seat with spring members provided between the piston seat and the top seat, a movable socket having movable detents provided around its periphery, and a bottom cover. When the central post of the workpiece pallet is inserted into the movable socket, the movable detents displaced inward to detent the central post so as to allow the movable socket to float upward slightly, and the movable socket is pressed downward through simple mechanism to clamp the central post firmly so that zero clamping effect between the workpiece pallet and the chuck can be achieved.

Abstract: A compression punch for a rotary press, with a shaft, a punch head disposed at one shaft end and a compression zone disposed at the other shaft end, wherein the punch head features an upper mirror surface, an outer cylinder surface and a curved transition zone between the mirror surface and the cylinder surface, wherein the mirror surface and the transition zone form a three-dimensional surface, whose course in at least one radial direction can be described by a mathematical function whose second derivative is continuous.

Abstract: A chuck with a chuck body having a guide opening and an actuating element, and with at least one interchangeable clamp that can be inserted into the guide opening. The clamp has associated therewith a rotary disk with a blocking element that secures the rotary disk against rotation relative to the chuck body during insertion of the clamp into the guide opening. This makes it possible that, upon a rotation of the clamp about the longitudinal axis in the guide opening, a segment can be displaced outward toward the chuck body by the rotation relative to the rotary disk, via which the clamp is detachably secured on the chuck body. A clamp with a clamp body, a pivot body located in the clamp body, and a chucking element is also provided. The clamp has, at the opposite end of the clamping element, a locking unit that carries the pivot body.