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| Number | Title | Issue Date |
| 6923362 | Integral channels in metal components and fabrication thereof An internal channel in a metal body for use in applications where internal fluid flow within a metal body is desired, as in a heat exchanger. The internal channel is formed in the metal body by frictionally stirring with a pin plunged into the metal body, and traver... | 08/02/2005 |
| 6923605 | Clamping device A clamping device for releasibly fixing one first machine part containing a cone-shape drilled shank to a second machine part containing a female bore. The clamping device comprises an axially movable clamping sleeve inside the second machine part and several clampi... | 08/02/2005 |
| 6923451 | Tool holder In order to provide a tool holder which greatly reduces frictional resistance between a locknut and a taper collet, and eliminates a twisting of the taper collet during tightening of the locknut, in a tool holder comprising a locknut 13 which pushes a taper c... | 08/02/2005 |
| 6913268 | Rotation-independent actuation of a machine element The invention relates to rotating machine element that contains a mechanism actuated by a fluid pressure. The aim of the invention is to allow for a supply of actuation fluid also during the rotation. To this end, a non-rotating control element (2) is mounted... | 07/05/2005 |
| 6910839 | Internal, active, and compensatory method and device for the rotational main-shaft of a cutting tool with axial bias-and-swing The invention, relating to an internal, active, compensatory and method and device for the rotational main-shaft of a cutting tool with axial bias-and-swing, mainly applies an active technique to a gas-floating main-shaft to thereby control its bias-and-swing. A sen... | 06/28/2005 |
| 6896455 | Rotatable machine spindle including a gas spring in which a lubricant-containing gas is confined A machine spindle includes a rotatable casing in which a clamping device is mounted. The clamping device includes a drawbar for securing a cutting tool. The drawbar is axially displaced by a gas spring which includes a chamber in which a lubricant-containing gas med... | 05/24/2005 |
| 6860683 | Spindle assembly for machine tool A spindle assembly for a machine tool wherein a rear end portion of the spindle is structured to allow the spindle to be operated at higher speeds, thereby enhancing precision. The spindle assembly includes a spindle mounted within a spindle housing able to undergo ... | 03/01/2005 |
| 6843623 | High-speed spindle unit for machine tools A high-speed spindle unit for milling and drilling machines. The spindle unit has a spindle housing on the front end portion of which a terminating ring detachably mounted and a rotationally driven tool spindle which is supported in at least a front roller bearing i... | 01/18/2005 |
| 6832433 | Machining apparatus and method of using same The present invention comprises a machining apparatus including a work piece holder having an adapter body with an axial bore and a translating portion located within the axial bore of the adapter body. The translating portion has a proximal end for coupling with a ... | 12/21/2004 |
| 6820325 | Integrated air flow control for a pick and place spindle assembly A spindle assembly for a component pick and place machine includes a housing containing a spindle for movement therein along a longitudinal axis of the spindle; the housing accommodating a valve for controlling the flow of air to an inner bore of the spindle; the in... | 11/23/2004 |
| 6814528 | Device for supporting a machine part when subjected to force The invention relates to a device for supporting a first machine part when a second machine part is subjected to force, the second machine part being mounted on the first machine part or being accommodated therein, in particular device for supporting a shaft (1 | 11/09/2004 |
| 6813965 | HSK spindle tension testing kit A HSK spindle tension testing kit for measuring the force exerted by the drawbar assembly on the spindle on a CNC machine. The kit includes an upper frame member, a clevis, a pressure jack, a guide piece, a grip-housing, and a transfer rod. The guide piece is aligne... | 11/09/2004 |
| 6776553 | Connection point Proposed is a connecting point between two tool parts with a device, comprising an elastic element, for effecting a defined angular position of rotation between the tool parts. Said connecting point is characterized in that the elastic element (23) in a first... | 08/17/2004 |
| 6726415 | Actuating device for a tool or workpiece tensioning jack in a machine tool spindle The invention relates to an actuating device for a tool or a workpiece tensioning jack in a machine tool spindle. The actuating device includes a pressure piston which is arranged inside a housing for actuating the tool or workpiece tensioning jack. In order to prov... | 04/27/2004 |
| 6722827 | Tool clamping device employing gas spring A tool part is held by a clamping mechanism which includes an axially-movable drawbar operably connected to a clamping unit for moving the clamping unit into and out of clamping relationship with the tool part. The drawbar is biased by a spring in the form of compre... | 04/20/2004 |
| 6674189 | Spindle apparatus A spindle apparatus of a machine tool comprises a main spindle rotatably supported in a housing via bearings. A helium circulation system is provided for introducing helium, lower in density and fluid pressure than air, through a helium supply port into a... | 01/06/2004 |
| 6623015 | Clamping chuck A clamping chuck having a central receptacle and a disk arranged around the receptacle and which may be moved from a clamping position, whereby a draw bar inserted into the receptacle is clamped, to a releasing position wherein a draw bar is released from... | 09/23/2003 |
| 6619670 | Chuck unit for automatic machine tools, designed to perform both power tasks and finishing work A chuck unit for automatic machine tools perform both power tasks and high speed finishing of pieces with lubricant/coolant fluid flowing through a chuck shaft. The chuck unit includes a support on which a first chuck for a tool is mounted and driven by a... | 09/16/2003 |
| 6619897 | Error proofing method and apparatus for cutting tools An apparatus and method for aligning a clamping unit and a toolholder to facilitate proper positioning of a cutting tool with respect to a workpiece.... | 09/16/2003 |
| 6568886 | Device of a tool spindle Arrangement for a tool spindle equipped with a rotor (22) of an electric driving motor (32). It is distinguished in that the rotating part (1, 3) of the tool spindle is accommodated in a unit (4) that is stationary in relation to the rotating part, that t... | 05/27/2003 |
| 6568889 | Collet chuck A collet chuck for holding a mounting collar of an object to be rotated has a chuck body centered on and rotatable about an axis and formed with an axially forwardly open socket shaped to receive the collar. A plurality of jaws in the socket have front en... | 05/27/2003 |
| 6568888 | Collet chuck A collet chuck for holding a mounting collar of an object--tool or workpiece--to be rotated has a chuck body centered on and rotatable about an axis and formed with a forwardly open socket shaped to receive the collar. A plurality of jaws in the socket ha... | 05/27/2003 |
| 6533509 | Tool holder unclamp mechanism for a milling machine A tool holder unclamp mechanism for a milling machine eliminates compressive forces upon the coolant seals conventionally installed in integral tool and workpiece coolant systems for such machines. The present mechanism is particularly well adapted for in... | 03/18/2003 |
| 6533507 | Spindle tool holder tension testing kit A spindle tension testing kit designed to allow mill operators to quickly and easily determine the gripping or holding force of the coupler and drawbar assembly on a spindle against the tool holder used with a milling or other machine using this method of... | 03/18/2003 |
| 6517299 | Cutter holder for cutting metal-working machine A cutter holder comprises a coupling shaft, a driving shaft inserted into the coupling shaft, the driving shaft having toothed rails respectively engaged into corresponding radial slots of the coupling shaft, a driving nut mounted on the coupling shaft an... | 02/11/2003 |
| 6497538 | Device of a tool spindle Arrangement for delivering coolant fluid to the rotating part (1,3) of a tool spindle intended to support a tool at one end. It is distinguished in that the end of the rotating part (1,3) that is opposite the tool is accommodated in a unit (4) that is sta... | 12/24/2002 |
| 6481940 | Spindle in a machine tool A spindle (10) is arranged in a machine tool, said spindle (10) having an axis (46), a receptacle arranged in the axis (46) and provided for receiving a shaft of a tool holder (14), and a clamping mechanism for axial fixation of the shaft in the receptacl... | 11/19/2002 |
| 6473951 | Spindle device for machine tools A spindle device for machine tools that can eliminate the need for laborious air bleeding work and labor-demanding fitting/removing work for maintenance. The spindle device for machine tools includes a drawbar that is axially movably inserted into an axia... | 11/05/2002 |
| 6436021 | Method and apparatus for supplying lubricant A lubricant supply apparatus 1 includes a tank holder portion 3 and a lubricant tank portion 2. In case where a tool holder clamp device 62 provided on a spindle shaft 61 pushes against an abutting member 35 disposed in the lubricant supply apparatus 1, l... | 08/20/2002 |
| 6431803 | Instantaneous clamping/unclamping mechanism for CNC machine spindle tool units An instantaneous clamping/unclamping mechanism for a CNC machine tools is provided. The two stage procedure tool separating function includes an oil cylinder with a piston rod passing through its inner part and engaged with a first piston for tool separat... | 08/13/2002 |
| 6419430 | Holder for collar of workpiece or tool A tool or workpiece having a mounting collar centered on an axis and for internally with an axially directed shoulder is mounted on a bolder having a drive sleeve also centered on an axis and fitted coaxially over the collar and a plurality of angularly s... | 07/16/2002 |
| 6413028 | Device for a tool spindle Tool spindle with a moveable pulling rod (3) axially displaceable in the spindle axle (1) for firmly attaching a toot at the axle of the spindle. The end (10) of the pulling rod (3) that is opposite to the tool extends into a unit (4) that accommodates th... | 07/02/2002 |
| 6413027 | Device for a tool spindle Arrangement for a tool spindle with a pulling rod (3) axially displaceable in the spindle axle (1) for firmly attaching a tool at the spindle of the tool whereby the end of the pulling rod (3) that is opposite to the tool is accommodated in a stationary u... | 07/02/2002 |
| 6413026 | Device for a tool spindle Tool spindle with a moveable pulling rod (3) axially displaceable in the spindle axle (1) for firmly attaching a tool at the axle of the spindle. The end (10) of the pulling rod (3) that is opposite to the tool extends into a unit (4) that accommodates th... | 07/02/2002 |
| 6413025 | Device of a tool spindle Supply unit for a tool spindle wholly or partially equipped with a moveable pulling rod (3) axially displaceable in the spindle axle (1) for firmly attaching the tool with a fluid supply system for displacing the pulling rod (3), with a fluid supply syste... | 07/02/2002 |
| 6409441 | Device of a tool spindle Arrangement for a tool spindle with a moveable pulling rod (3) axially displaceable in the spindle axle (1) for firmly attaching the tool. The pulling rod is surrounded by at least one spool (9) that is stationary in relation to the axial displacement of ... | 06/25/2002 |
| 6402442 | Machine tool The present invention provides a machine tool which is adapted to detect the end of the service life of a spring of a clamp unit for fixing a tool to a spindle for systematic replacement of the spring. The machine tool comprises a clamp unit (47) for fixi... | 06/11/2002 |
| 6398468 | Machine tool quill spindle A quill spindle includes a quill assembly within which a spindle assembly is rotationally mounted. The quill assembly includes a coolant flow path, and the spindle assembly includes a plurality of coolant flow paths. The quill assembly flow path and one o... | 06/04/2002 |
| 6385506 | Robot A motion deciding means is provided to decide a motion based on transmitted information which is transmitted from another robot apparatus, so that it is possible to realize a robot apparatus which operates in cooperation with other robot apparatuses regar... | 05/07/2002 |
| 6370995 | Holder including a hydraulic piston for the detachable assembly of cutting tools A holder for the detachable assembly of cutting tools includes a clamping mechanism, which has a piston axially movable by applying oil pressure on either of two opposite sides thereof. A projection of the piston includes a cone surface with a moderate co... | 04/16/2002 |
