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| Number | Title | Issue Date |
| 7201547 | Opening actuator for collet chuck A chuck actuator has a hollow housing having a chamber and having a front end and a rear end. A ring in the chamber forms with the front end thereof a front compartment and a piston in the chamber between the ring and the rear end forms an intermediate compartment w... | 04/10/2007 |
| 7195431 | Clamping device The invention relates to a device for clamping a hollow shaft tool (1) or tool holder provided with a conical hollow shaft (3) in a machine spindle (2) provided with a taper bore (4), especially for use in a machine tool. The device compr... | 03/27/2007 |
| 7192226 | Shrink fit holder and methods of drilling and reaming A drill has a unitary drill bit and chuck structure that includes a drill bit and a chuck. The chuck encloses a portion of the drill bit and has a thread. A rotatable drive element having a thread engages the thread of the chuck. The chuck is heat shrunk onto the dr... | 03/20/2007 |
| 7189039 | Tool coupling for rotating tools A tool assembly includes first and second tool bodies, a tool coupling interconnecting the tool bodies, and a drawing member for drawing the tool bodies together along a common longitudinal axis. The tool coupling includes a male portion disposed on one of the tool ... | 03/13/2007 |
| 7175184 | Collect tool holder and method of making same A tool holder for a tool with a recess having detent disposed therein for holding the tool axially, and having a sleeve telescoped over a collet which has flexible fingers and with the sleeve and the fingers having camming surfaces for effecting clamping onto the to... | 02/13/2007 |
| 7175375 | Structure of a spindle of a machining center A spindle of a machining center is equipped with a clutch, which is fitted to a main spindle housing, and directly connected to a power source for separable engagement with a shaft coupling sleeve, and which is guided by sloping guiding trenches of a clutch disk suc... | 02/13/2007 |
| 7175579 | Machine tool with gripper and/or tool magazine system A tool magazine system and a gripper for a machining spindle. The gripper is fed to the tool laterally with respect to the rotational or longitudinal axes of the tool, particularly substantially at right angles to the axis, and should grasp the tool. ... | 02/13/2007 |
| 7165921 | Collet chuck A holder for a collar having an axially forwardly directed shoulder and axially rearward thereof a radially outwardly directed centering surface has a drive sleeve fitted over the collar and a plurality of angularly spaced jaws each formed with an axially rearwardly... | 01/23/2007 |
| 7165922 | Cutting tool assembly having construction enabling cutting tool to have large diameter A cutting tool assembly including: (a) an arbor including a tapered shank portion which has a taper of 7/24 and a size of No. 30; (b) a cutting tool having at least one cutting blade and fastened to the arbor; (c) a fastener for fastening the cutting tool to the arb... | 01/23/2007 |
| 7150590 | Machining tool, especially a milling tool A machining tool, especially a milling tool, includes a shaft-like holder defining a longitudinal axis (13). A seat (9) is provided in the front face of the holder for a cutting plate that can be inserted into the holder. The cutting plate has a coupli... | 12/19/2006 |
| 7144207 | Fluid chuck device and method In a valve disposed between a fluid supply and a socket of a chuck and configured to regulate the flow of the fluid to the socket. There is a seal screw for modulating a preload tension. This seal screw has a first sealing surface. The valve further includes a secon... | 12/05/2006 |
| 7137632 | Force limiting workpiece holding device A force limiting workpiece holding device for holding a workpiece in a workpiece processing assembly having a spindle and a closer that applies a force, comprises a workpiece holder slidably mounted to the spindle. The workpiece holder includes a plurality of circum... | 11/21/2006 |
| 7125211 | Apparatus and method for damping vibration in a machine tool A machine tool for performing a machine tool function including components adapted to cooperate with each other to execute the machine tool function. The machine tool has a number of constituent parts and a number of sheets of damping material. Each component includ... | 10/24/2006 |
| 7125208 | Machine tool and tool holder for said machine tool A machine tool has a spindle which has a tool receptacle for an interchangeable tool holder. The tool holder is chucked into the tool receptacle during operation of the machine tool. A first passage having an outlet opening is arranged in the interior of the spindle... | 10/24/2006 |
| 7124486 | Fast and automated tool-changing device with standard conical tool support for digitally controlled bending machine A digitally controlled machine for bending, forming, folding or coiling a bar conventionally includes a frame, and a rotary bending tool for producing bends in different planes. A bar is moved along an axis and is brought through a bending snout associated with the ... | 10/24/2006 |
| 7115083 | Cutting tool holder for a machining center A cutting tool holder for a machining center has a body and a fastening device. The fastening device is mounted in the body and has a base, at least two positioning elements and a locking element. The base has an annular wall, a through hole and at least two positio... | 10/03/2006 |
| 7112019 | Pneumatic spindle with means to direct the bearing air towards the tool-holding collet A spindle (1) in which the moving part (2) fixed to the tool-holding collet (3) is supported by one or more aerostatic bushes (4) on cushions of air generated by a jet of compressed air that circulates continuously along the air gaps (... | 09/26/2006 |
| 7108108 | Rod clamping device A device for clamping a rod to stop axial and/or rotative movement between the rod and the device. The device includes pressure and clamp units, the clamp unit having a bushing fixed therein and provided with a radially resilient center section normally sized to per... | 09/19/2006 |
| 7101127 | Interchangeable blade cutting tool and blade section installed thereon Eccentricity is not allowed to occur in a blade section, and a blade section is maintained in a stable installation state. A hook section 124, which is composed of a shaft section 125 and an end section 126 provided with a corner section 132 | 09/05/2006 |
| 7101128 | Cutting tool and cutting head thereto A tool such as a milling or drilling tool includes a shaft having a front recess in which a cutting head is disposed. A drawbar disposed in the shaft includes a plurality of flexible tongues disposed in the recess. The tongues form a recess in which a rear knob of t... | 09/05/2006 |
| 7097400 | Tool and method for the finishing of valve seats and guides It is proposed to provide a tool for the final machining of a valve seat and valve guide in a cylinder block of a combustion engine of a motor vehicle, said tool having a first section with at least one first blade for machining the valve seat and a second section w... | 08/29/2006 |
| 7097399 | Cutting machine for gear shaping or the like A cutting machine includes linear electrical actuation for controlling linear reciprocating movement of a spindle and cutting tool. The cutting machine is suited for gear shaping cutting operations and the like. Linear electrical actuation may be used to control pos... | 08/29/2006 |
| 7090448 | Tool holder assembly A tool holder assembly for a cutting tool. The tool holder assembly includes a tool holder, a locating member, and a spring. The spring is configured to bias the locating member to engage the cutting tool to inhibit fluid leakage. ... | 08/15/2006 |
| 7077607 | Key cutting machine A key cutting machine for the cutting of keys includes a spindle adapted to be driven rotatably about an axis thereof. The spindle has an axially extending throughbore. A milling cutter is selectively mountable in the throughbore for corotation therewith. A carriage... | 07/18/2006 |
| 7073797 | Tool holder for annular core bit A tool holder (1) and a shank (8) for quick mounting and dismounting an annular core bit (2) both include cooperating respective guide members (4, 4′) provided at their bit-side ends, flanges (3, 9) arranged coaxially with the gu... | 07/11/2006 |
| 7037053 | Tool holder A tool holder is equipped with a tip run-out correction mechanism for correcting run-out of the tip of the tool. The tip run-out correction mechanism includes an annular stepped portion formed on a cylindrical support portion of a holder body; a ring member rotatabl... | 05/02/2006 |
| 7037052 | Spindle unit of machine tool A column (4) is provided with a hanging jig (holding mechanism) (50) for holding an unclamping apparatus (30) and a spindle head (15) is made to be able to move in an up and down direction by itself by removing a bolt (43) in a sta... | 05/02/2006 |
| 7024783 | Apparatus for changing operating modules on a coordinate positioning machine A storage port (20) for separating a magnetically coupled task module (18) from a modular probe (16) mounted on a machine comprises a housing (22) and arm (24) receivable by the task module (18). A mechanism is provided for ... | 04/11/2006 |
| 7025108 | Method for milling casting moulds The invention relates to a method for producing heat-resistant casting molds from molding sand containing binder, particularly for producing an inner contour of casting molds for prototypes, large volumes and deep grooves often being produced especially in the machi... | 04/11/2006 |
| 7025542 | Guide device for workpiece machining head, machine having the same, and guide method There is provided a guide device for a machining head capable of machining a workpiece such as a cylinder head of an engine accurately, a machine having the guide device, and a guide method. At least one of guide posts formed in a guide post member has an air pressu... | 04/11/2006 |
| 7008153 | Machine spindle having a gas spring-operated tool-clamping mechanism A machine spindle includes a casing and a clamping mechanism disposed in the casing. The clamping mechanism includes front and rear drawbars which are relatively movable axially within the casing. A gas spring biases the rear drawbar rearwardly, and a force transmit... | 03/07/2006 |
| 7004692 | Rotary cutting tool A rotary cutting tool has a cutting head, a screw member and a tool shank. The cutting head has an axially directed through bore with locking wings protruding from the bore surface. Each locking wing having a sloping locking surface and stopper with a stop surface. ... | 02/28/2006 |
| 7000278 | Method and apparatus for end of cycle signal for laundry appliance A method is disclosed for producing an end of cycle for a laundry appliance having a drive motor, a timer motor, and at least one water valve. The method includes determining that the drive motor was previously running and is presently turned off, determining that t... | 02/21/2006 |
| 6979156 | Machine spindle having a force-amplifier drawbar assembly A machine spindle includes a casing and a drawbar assembly disposed in the casing for clamping a tool in place. The drawbar assembly includes a front drawbar having a tool clamp, and a rear drawbar movable rearwardly under a spring force for pulling the front drawba... | 12/27/2005 |
| 6971825 | Milling tool holder with differential screw A milling tool holder having a spindle with a tapered opening and a tool holder having a tapered shank that fits into the spindle opening. The narrow end of the shank has a split collar. The spindle is joined to the tool holder by inserting the shank into the tapere... | 12/06/2005 |
| 6964547 | Milling tool holder with threaded plug A milling tool holder axially having a shank with a tapered female opening, and a tool holder having a tapered male end that fits into the female opening. The narrow end of the male end has a bore. A plug having a threaded opening is inserted in the bore in the tool... | 11/15/2005 |
| 6951256 | Machine tool having coaxial driving device A machine tool includes a housing slidably supported on a table, a moving device may be used to move the housing up and down relative to the table, a tubular shaft is rotatably received within the housing and includes a bore to receive a chuck device which may coupl... | 10/04/2005 |
| 6941629 | Tool assembly unit The present invention provides a tool assembly unit for coupling a tool and a tool holder including a measuring device which determines the position of the tool with respect to the tool holder, an alignment device coupled to the measuring device which receives the t... | 09/13/2005 |
| 6929437 | Spindle with axially acting collet-opening device A spindle for machining at high rotational speeds, includes a tool-holding taper collet with radial slits that is kept closed to clamp a tool by pressing it axially against a seat of complementary shape by the reaction force of precompressed elastic elements interpo... | 08/16/2005 |
| 6929591 | Tool storage holster A tool holster resiliently engages with a tool upon its insertion with the holster. Positive retention is obtained by rotating a threaded shaft to advance a cam to rotate levers to engage the tool. The lever arms are split to allow a degree of misalignment. Springs ... | 08/16/2005 |
