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| Number | Title | Issue Date |
| 5061125 | Boring device A boring device adapted to mount boring tools for automatic tool changing, in which an eccentric mounting of relatively rotatable inner spindle 11 and main spindle (2) allows radial adjustment of the tool. Relative rotation of inner and outer spindles is ... | 10/29/1991 |
| 5054344 | Quick change clamping mechanism A clamping assembly for releasably holding a tool holder having a shank includes a tool support member having a bore extending along a longitudinal axis. A locking mechanism is disposed in the axial bore for securing the tool holder to the support member.... | 10/08/1991 |
| 5052866 | Actuating arrangement for a clamping device in a machine tool spindle An actuating arrangement for a tool clamping device (1) has a clamping bar (3) which is axially displaceable in a clamping direction in a machine tool spindle (2) under the effect of a spring arrangement (11), and a wedge transmission assembly (9) which i... | 10/01/1991 |
| 5044841 | Valve seat bushing machining apparatus Apparatus for machining a valve seat and valve stem guide all from the valve seat side of a head or block. The valve seat is machined in one pass by a single point cutting tool which is moved on two axes and, the valve guide bore is machined by a reamer. ... | 09/03/1991 |
| 5039261 | Spindle device for use in machine tool A spindle device providing a hydraulic system for moving a drawbar in a tool holding direction. The drawbar extends through a spindle shaft and is slidably provided therein. A piston is fixedly connected to the drawbar, and a pressure chamber is defined b... | 08/13/1991 |
| 5037254 | Tool clamping device A tool clamping device comprises an axial sleeve having a forwardly tapering internal surface. A radially compressible ring is disposed on the internal surface. An axially compressible spring opposes axial movement of the ring while permitting axial rearw... | 08/06/1991 |
| 5035557 | Chuck for axially clamping a tool to a machine tool spindle A rotary chuck for axially clamping a tool includes a spindle terminus forming part of a rotary machine tool spindle; a clamping element holder immobilized in the central bore of the spindle terminus; and a plurality of clamping elements circumferentially... | 07/30/1991 |
| 5033922 | Apparatus for driving spindles of machine tools In apparatus for driving a spindle of a machine tool, the spindle being rotatably supported in a spindle housing and received in a took mounting opening adapted to be inserted with a pull stud at a front end thereof, including a took clamping drawbar prov... | 07/23/1991 |
| 5026223 | Bayonet tool locking device A device for locking a tool to a cutting machine. During a locking action a drawbar is rotated to bring a radial lock pin into registry with oppositely directed bayonet slots formed in a tool that has been inserted into a pocket in the end face of a tool ... | 06/25/1991 |
| 5022278 | Draw bar mechanism In a wedge ring mechanism for providing a collet clamping force in a machine tool spindle, a sleeve member retains a plurality of steel balls. A mechanical advantage is realized as the balls are wedged between obliquely inclined surfaces. The sleeve membe... | 06/11/1991 |
| 5018916 | Actuating arrangement for a tool or workpiece clamping device in a machine tool spindle The actuating arrangement for a tool clamping device (1) has a clamping bar (3) which is axially displaceable in a clamping direction in a machine tool spindle (2) under the effect of a spring arrangement (11) and a firsst wedge transmission assembly (9) ... | 05/28/1991 |
| 5002444 | Machine tool holder with automatic hook-up The present invention relates to a system for attaching a tool holder to a machine tool which includes an automatic hook-up of an electrical, pneumatic or hydraulic connector to supply power to the tool holder. The system includes an attaching sleeve slid... | 03/26/1991 |
| 4997325 | Chuck for axially clamping two machine parts which are releasable from each other In a chuck for axially clamping two machine parts which are releasable from each other, on the first machine part (1) are provided a hollow centring attachment (3), a contact face (6) surrounding the attachment, and an annular groove (8) formed on the ins... | 03/05/1991 |
| 4993132 | Device for connecting a tool to a robot arm A tool is to be automatically connected to a robot arm in well-defined angular position such that a sufficiently high torque is transmitted. The robot arm has a conical recess extending over a tool cone. A threaded sleeve is rectilinearly guided in the to... | 02/19/1991 |
| 4986704 | Tool mounting apparatus A tool mounting apparatus for fixedly mounting a tool, an abrasive wheel and the like to a spindle of a machine such as a machine tool, by making use of a resilient means incorporated into the spindle. The resilient means is constituted to create a resili... | 01/22/1991 |
| 4978262 | Tool coupling between a toolholder and a machine spindle A tool clamping device for machine tools comprises a draw bar that is axially displaceable inside a machine spindle and a locking element arranged in cooperation with the draw bar. The device becomes secured to a toolholder by effecting a relative movemen... | 12/18/1990 |
| 4976575 | Tool holding system for automatic tool changing The invention relates to a tool holding system for automatic tool changing in a machine tool, stamping machine or other such machine, wherein the machine has a spindle which has at its free end a gripping means in the form of a sleeve for a tool which can... | 12/11/1990 |
| 4957398 | Two-section tool spindle having a channel for carrying pressurized fluid The invention relates to a tool-spindle arrangement comprising a main spindle rotatably supported in a spindle housing and an electrical drive motor drivingly connected to the main spindle. The main spindle is constructed hollow to receive operating eleme... | 09/18/1990 |
| 4932295 | Automatic clamping unit for receiving and holding a tool holder The present invention relates to an automatic clamping unit of the type having a spring loaded lock rod that is movable between an unlocked and locked position. A pair of locking balls are confined about the locking rod and are operative to move outwardly... | 06/12/1990 |
| 4930956 | Device for making a mechanical element integral in rotational movement with a second external, coaxial element by friction A coaxial shaft and housing assembly is adapted to be locked against relative rotation. It comprises a housing or hollow motor shaft (2) having a threaded internal cylindrical surface (5) of a first pitch (m), and a coaxial shaft (10) received in the hous... | 06/05/1990 |
| 4925348 | Apparatus for machining a workpiece of wood, in particular wood beams The drive means (3) is arranged directly on the tool (2) and can be moved together therewith about a plurality of axes (A, B, C and D). The drive means is provided with a tool holding means for automatically delivering or receiving tools in a tool magazin... | 05/15/1990 |
| 4915553 | Tool retention and ejection mechanism The operating mechanism of a tool retention and ejection mechanism for the spindle of a machine tool is located in an annular space between the spindle and the grill. A drawbar is slidably disposed in an axial bore formed in the spindle and is provided wi... | 04/10/1990 |
| 4913605 | Integral spring flexure for use with high speed rotating shafts This invention relates to an improved integral machined spring adapted to be used in high speed spindles employing a tool holding mechanism which rotates with the spindle. The spring assembly includes a plurality of lands and slots arranged circumferentia... | 04/03/1990 |
| 4884899 | Resiliently mounted fluid bearing assembly A fluid bearing assembly, e.g., air or gas, of the hydrostatic or hydrodynamic type, for use as a spindle and the like, includes spaced journals mounted on a shaft for rotation therewith. The housing includes spaced support bearings cooperating with the j... | 12/05/1989 |
| 4863324 | Quick change attachment for clamping chucks Quick change attachment for clamping chucks on a machine spindle in which a locking bush (32) is actuated by an axially shiftable locking piston for actuating the chuck clamping, while an adjusting rod (44) adjustable from the clamping cylinder is provide... | 09/05/1989 |
| 4860429 | Automatic tool changing device A tool changing device for tool systems in which a tool head and a tool holder are connected with one another by means of an automatic clamping mechanism which includes an integrated clamping screw. The tool changing device includes a lifting carriage whi... | 08/29/1989 |
| 4844671 | Coupling device Described is a coupling device between a workpiece support or a tool support, such as for example a tool system module, for example in the form of a basic tool holding fixture, and a handling device, such as for example a machine tool, especially a spindl... | 07/04/1989 |
| 4836068 | Lock rod and apparatus for holding a toolholder 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 unl... | 06/06/1989 |
| 4836723 | Spindle assembly An improved high-speed spindle assembly for a shank-driven cutting tool comprises a hollow spindle for a collet, a titanium alloy drawbar within the spindle for threadingly engaging the collet, and a tubular resilient member within the spindle surrounding... | 06/06/1989 |
| 4822220 | Device for securing tools in metal working machine To be able, in a machine for machining workpieces and showing a spindle with spindle draw bar, to use an arm (10) with a draw bar pin (2) in a machining device for several working operations or separate tool holders (3) or different types of tools, the dr... | 04/18/1989 |
| 4818161 | Tool holder system and method of use An improved tool holder system and method of using the same is disclosed, characterized by use of a plural extension member assemblies which permit the rapid adaptation of conventional machine tool holders for use in both automated machine tool changers a... | 04/04/1989 |
| 4817267 | Tool change apparatus for machining center and the like A tool change apparatus for a machining center and the like comprises a spindle head vertically slidably mounted on a column, and a spindle rotatably mounted in the spindle head. The spindle has at the lower end thereof a tapered tool reception bore in wh... | 04/04/1989 |
| 4812091 | Exchange system on an irremovable machining center An exchange mechanism enables removable members such as a tool member to be secured to an irremovable machining center. The exchange mechanism comprises a cassette connectible to the tool member, and a plurality of locking members and associated actuator ... | 03/14/1989 |
| 4804301 | Central drawbar coupling actuating mechanism Central drawbar operated tooling connection system wherein a pair of wedges are positively driven laterally outward and retracted by reciprocation of a central drawbar. Mechanical advantage of a key slot between drawbar and wedges plus mechanical advantag... | 02/14/1989 |
| 4802801 | Worktable support for machine tool A typical machine tool utilizes a horizontally disposed, elongated, substantially planar worktable which is supported by a knee between the ends of the worktable. When a workpiece is placed on the worktable and the worktable is moved relative to the knee ... | 02/07/1989 |
| 4790700 | Integral spring flexure for use with high speed rotating shafts This invention relates to an improved integral machined spring adapted to be used in high speed spindles employing a tool holding mechanism which rotates with the spindle. The spring assembly includes a plurality of lands and slots arranged circumferentia... | 12/13/1988 |
| 4789280 | Tooling assembly for automatic tool changing A tooling assembly (10) is disclosed having a plurality of tool holders (18, 20) for independently driven cutting tools (14, 16), the tooling assembly adapted for automatic insertion and removal from a spindle assembly (12). The plurality of cutting tools... | 12/06/1988 |
| 4787785 | Machine tool with a spindle head A machine tool has a spindle head pivotable through 180 degrees and having a spindle rotatably mounted in its housing. As a result of the pivoting movement, the spindle head can be shifted from a vertical to a horizontal working position. The spindle head... | 11/29/1988 |
| 4777715 | Tool shank retention mechanism with machine tool therefor A simple, strong and fast acting tool retention subsystem is intended for both original equipment and retrofit applications in machining centers with automatic tool changer systems. A machining center incorporating the invention is described. The inventio... | 10/18/1988 |
| 4764064 | Tool changer A tool changer formed by a power assisted draw bar to obtain and lock, as well as release and expel, standard tapered tool holders used with machine tools. Two components, a collet cylinder and a flared stem, together comprise the locking mechanism and pr... | 08/16/1988 |
