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| Number | Title | Issue Date |
| 8079789 | Tool coupling The invention relates to a tool coupling for connecting a tool carrier which can be driven in a rotating manner, in particular a milling tool with a machine spindle or an adapter connected to a spindle, wherein four drivers in a crosswise formation are provided for ... | 12/20/2011 |
| 7883303 | Machine tool spindle structure capable of monitoring working state in real time A machine tool spindle structure capable of monitoring a working state in real time includes a spindle body, a rotating mandrel, a cutter base, and an internal inspecting device. The cutter base is combined with the rotating mandrel and rotates with the rotating man... | 02/08/2011 |
| 7766586 | Quick change power tool chuck An improved quick change power tool chuck is provided which is principally used on a wood working router but could also be used in many other power tool applications. Key features of the quick change chuck include the unique way that it secures the cutting bit from ... | 08/03/2010 |
| 7766587 | Small radius end mill tool An end mill including a shank having one end gripped by a chuck which is rotatable about a predetermined rotation axis, and a blade body attached to the other end of the shank and rotatable together with the shank. The blade body has a shape in which the area of a c... | 08/03/2010 |
| 7748934 | Machine friction tool, interchangeable head and shaft A machine reaming tool includes a reaming head or interchangeable head (1) and a shaft (2), wherein the interchangeable head (1) is of one piece and may be exchanged, and in an axial direction and at each location, thus including means for the e... | 07/06/2010 |
| 7740428 | Rotor A rotor, used particularly in a rotating tool for machining workpieces, includes a rotor base body with locations, which are formed on the periphery thereof in an interspaced manner and which are suited for fitting the rotor with functional elements. The rotor base ... | 06/22/2010 |
| 7478983 | Tool assembly A tool assembly in which a tool is releasably mounted on a tool holder. The tool is supported by the tool holder at two spaced apart regions which are formed independently therefore alignment between the axes of the tool and tool holder does not rely on tight manufa... | 01/20/2009 |
| 7473059 | Small radius end mill tool An end mill including a shank having one end gripped by a chuck which is rotatable about a predetermined rotation axis, and a blade body attached to the other end of the shank and rotatable together with the shank. The blade body has a shape in which the area of a c... | 01/06/2009 |
| 7396197 | Force-balanced air supply for pneumatic tools The non-axial force exerted on a pneumatic tool by a non-axial air supply is balanced to allow for uniformly radially distributed compliance forces on the tool. An annular air ring is disposed around the pneumatic tool, covering an air inlet port. Air is supplied by... | 07/08/2008 |
| 7387479 | Quick-release tool holder for rotary tools An apparatus for changing cutting tool bits rapidly on milling machines, lathes, drills and other types of rotary power tools includes a first portion that is attached to the rotary power tool and retained thereto. A second portion includes the tool bit attached the... | 06/17/2008 |
| 7373707 | Milling apparatus The milling apparatus (10) is arranged in such a manner that the deep groove cutter (21) is attached to the milling cutter (20) and the rotational drive shaft (23a) is approximately orthogonal to a spine (16a) of a sh... | 05/20/2008 |
| 7374378 | Dust prevention mechanism of spindle device A dust prevention mechanism of a spindle device that ensures prevention of cutting liquid etc. from entering an inner portion of the spindle device, which saves energy and reduces noise upon stop of rotation of a spindle is provided. In a dust prevention mechanism | 05/20/2008 |
| 7371036 | Tool holding device and method for positioning a tool Disclosed is a tool holding device (22, 50, 58) for retaining a tool (24) on a tool chuck (20). Said tool holding device (22, 50, 58) comprises a tool-accommodating area (32, 52, 66) for at least partly receiving the tool (24 | 05/13/2008 |
| 7367102 | Method for mounting object and spindle device A spindle device to mount and rotate an object, including: a housing; a main shaft supported by the housing rotatably to the housing wherein the main shaft includes a through hole which goes through from an end to the other end thereof, and an opening of the through... | 05/06/2008 |
| 7338419 | Tool coupler for connecting tool heads, such as drills, reamers, millers, turn-cutters, dies, and rams, to a tool holder A tool coupler for connecting tool heads, such as drills, reamers, millers, turn-cutters, dies, and rams, to a tool holder. The tool coupler has a hollow shaft, a ring-shaped collar, and a gripper groove, in which gripper groove are disposed two diametrically opposi... | 03/04/2008 |
| 7338420 | Versatile toolholder for numerically controlled machine tool for holding tool through collet A versatile toolholder system is provided that is used by a numerically controlled machine tool. The toolholder system has an attachment portion that has a standardized shape to allow the toolholder to be used by conventional numerically controlled machine tools. Th... | 03/04/2008 |
| 7339441 | Circuit and method for quickly turning off MOS device An OTA driving an MOS device needs to turn it off quickly to minimize overshoot during a heavy to light load state. The drains of the MOS device can be used to accelerate turning off the MOS device. A first drain is connected to the gate of the MOS device. A second ... | 03/04/2008 |
| 7331742 | Spindle unit of machine tool A hollow portion of a spindle through which a draw bar and a disc spring assembly are inserted has a closed chamber structure and constitutes an oil pool chamber in which a lubricating oil is filled. The bearing portions that support the draw bar in the oil pool on ... | 02/19/2008 |
| 7326010 | Motor spindle A motor spindle for machine tool. The motor spindle having a spindle housing mounted on a machine part, a work spindle supported in the spindle housing in axially spaced roller bearings, an electric drive motor the stator of which is fixed in the spindle housing and... | 02/05/2008 |
| 7322779 | Interface between two parts of a tool system The invention relates to an interface between two parts of a tool system, in particular to a metal cutting tool (1). Said interface comprises a holder (3) provided with a cavity (31), an interchangeable head (5) which is arranged on the a... | 01/29/2008 |
| 7320568 | 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... | 01/22/2008 |
| 7318691 | Tool apparatus for milling machine The present invention provides an automated-torque controlled tool for attachment to a milling machine. The tool comprises an elongated hollow housing defined by a neck section, a middle section, and a bottom section. The neck section is adapted to engage a spindle ... | 01/15/2008 |
| 7293944 | Power tool with tool bit holder operator A power tool having a body, a tool bit holder protruding from the tool body for holding and rotating a tool bit about an axis of rotation, and an operator for operating the bit holder. The operator includes an annular member rotationally engageable with the bit hold... | 11/13/2007 |
| 7293943 | Tool holder In a tool holder, when oil supplied via an oil supply passage and an oil introducing passage reaches an atomizing space, the oil is atomized by an air flow of carrier gas consisting of compressed air, and then water supplied from a water supply passage and a water i... | 11/13/2007 |
| 7290968 | Extension fixture for turning tool An extension fixture for a turning tool includes a shank, a pull rod, a clamping sleeve, and a fixing member. Thus, the fixing member presses the rotation head of the pull rod to prevent the pull rod from being rotated, thereby preventing the clamping sleeve from be... | 11/06/2007 |
| 7287941 | Apparatus for amplifying the pull back force on a lock rod used to secure a toolholder An apparatus for pneumatically amplifying the force acting upon a lock rod to retain a toolholder within a toolholder receiving member has a spindle extending from the toolholder receiving member and at least two in-line dual acting piston/cylinder modules within a ... | 10/30/2007 |
| 7281888 | Tool for cutting machining The tool exhibits a first tool part (2) and a second tool part (3), which possess a common axis of rotation (A). The first tool part (2) is provided with an alignment pin (4) and exhibits at its root an annular surface (5). The sec... | 10/16/2007 |
| 7278196 | Interlocking tool holder An end mill chucking structure for chucking an end mill. The chucking structure includes an end mill holder; a shank receivable in an axial opening in the holder; a cone having an exterior cone shape adapted to be received in a drive spindle and an axial opening tha... | 10/09/2007 |
| 7270506 | Tool assembly A tool assembly in which a tool is removably secured to a tool holder. A sleeve of the tool is first fitted onto a shaft of the tool holder and then, by symmetrically radially expanding the shaft, the tool is secured to the tool holder. ... | 09/18/2007 |
| 7267642 | Automatic tool changing device and working machine An automatic tool changing device (30) has a tool storage device (31) with a plurality of tools stored therein, a tool chucking unit (41) and a tool unchucking unit (51) both capable of advancing/retreating between the tool storage device... | 09/11/2007 |
| 7258515 | Tool holding fixture and insert tool The invention is based on a tool holder for a power tool (i0), in particular for a hand-guided power angle grinder, having a slaving device (12) by way of which an inserted tool (14), which has a disklike hub (64), can be operatively conn... | 08/21/2007 |
| 7244083 | Cutting head assembly A cutting head assembly for use in cutting plate glass has a simplified drive train, all positioned about the vertical rotational centerline. The drive train includes a hollow bore drive motor having a drive adaptor directly engaged with a spline shaft that extends ... | 07/17/2007 |
| 7240594 | Toolholder assembly An apparatus is disclosed for releasably holding a toolholder shank having a lockable surface and a releasable surface utilizing an actuating bolt with an associated threaded actuating nut. When the actuating bolt is rotated in a locking direction, the actuating nut... | 07/10/2007 |
| 7234902 | Milling tool holder with camming plug A milling tool holder apparatus includes a tool holder having a male structure received in a female opening of a shank, and a camming plug received in a transverse plug-receiving opening in the shank and the tool holder. Turning the camming plug in one direction mov... | 06/26/2007 |
| 7228776 | Punch assembly A Punch Assembly and the method of use thereof is disclosed. Also disclosed is. The device is designed to be accepted within the chuck of a powder-actuated tool. The device can create a hole in steel decking when the device is shot into the decking by a powder-actua... | 06/12/2007 |
| 7220089 | Tool mounting device for turning center To provide a tool mounting device for a turning center that allows a rotating tool to be clamped/fixed using a shared clamp mechanism (8), and a turning tool (1B) to be clamped/fixed in an engaged/locked state in a turning center. In the turning center... | 05/22/2007 |
| 7210212 | Bayonet collet pickup tool for agile fixturing A bayonet collet pickup tool includes a collet chuck having a collet portion including a bore disposed therein. A collet is held in the bore and is operable therein. A bayonet cap is mounted to an outer surface of the collet chuck proximate the bore. The bayonet cap... | 05/01/2007 |
| 7207754 | Tool for machining workpieces A tool for the machining of workpieces is provided with a coolant/lubricant supply and an actuation unit for the activation of supplementary functions of the tool, with an actuation element and an actuation medium circuit. The actuation unit is separated from the co... | 04/24/2007 |
| 7207755 | Tool arrangement and tool for chip removal In a cutting tool arrangement and a tool for chip removing machining, the cutting tool arrangement comprises a tool, fastening arrangement, and a shank. The tool is a one-piece unit. The axial channel is of non-circular cross-section to provide a key grip. An end of... | 04/24/2007 |
| 7189038 | Orbital machining apparatus with drive element with drive pins An orbital machining apparatus for producing a workpiece hole with a cutting tool, including: a first actuator for rotating the tool about its longitudinal center axis during the machining of the hole; a second actuator for moving the tool in an axial feed direction... | 03/13/2007 |
