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| Number | Title | Issue Date |
| 8152422 | Control method for a machine tool with numerical control A control method for a tool machine is provided. The machine tool includes adjustment devices which are used to produce relative displacement between a machining head and a work piece. The adjustment movements are detected by sensors associated with the adjustment d... | 04/10/2012 |
| 7431545 | Method for producing dentures The invention relates to a method for producing dentures by milling a workpiece. The inventive method is characterized in that in the event of a change in the load on the workpiece or on the milling tool, or on the workpiece and on the milling tool, determined befor... | 10/07/2008 |
| 7364393 | Machine adaptation The invention relates to the transmission of power and/or data from/to a stationary part of a machine tool 200 to/from an accessory 100 mounted in the spindle 210 of the machine tool 200. A first electrical link or interface 1a,... | 04/29/2008 |
| 7258514 | Machine tool comprising parallel tool spindles that can be repositioned in relation to one another A machine tool is provided, in particular for the synchronous machining of workpieces. The tool includes two or more spindle units (2, 3), which run parallel in a machining unit and are designed to hold tools and repositioning devices for the precise adjustme... | 08/21/2007 |
| 7237991 | Machine tool The present invention provides a machine tool capable of reducing residual vibration occurring at the location time, thereby achieving responsiveness to a recent demand for higher acceleration/deceleration speed. The machine tool is configured such that a column ... | 07/03/2007 |
| 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 |
| 7056072 | Method and apparatus for controlling movement of cutting blade and workpiece A method of controlling a relative movement of a cutting blade and a workpiece which are moved relative to each other by a movement device in an operation with a machine tool. The method includes a step of bringing the cutting blade and an object into contact with e... | 06/06/2006 |
| 6932547 | Toolhead assembly for CNC machines having misalignment prevention means A toolhead assembly for a CNC machine displaceable along orthogonal x, y and z-axes generally consisting of a support assembly, a tool carrier supported on the support assembly having a rotatable tool axis and being displaceable relative to the support assembly betw... | 08/23/2005 |
| 6866451 | Device for detecting a thermal linear dilation on part of a machine A device for detecting thermally caused linear expansions of a machine element, wherein the device includes a temperature sensor placed along an expansion direction. The temperature sensor includes a first metallic conductor having an electrical resistance that is p... | 03/15/2005 |
| 6832879 | Machine tool for at least partial contour-dependent cutting or milling A machine tool (1) for the at least partial machining, contour-dependent cutting or milling of a component from a plate-shaped workpiece (2), for example a wood plate, is provided, and includes a suction device used as a clamping device for engaging on... | 12/21/2004 |
| 6758640 | Method and apparatus for controlling movement of cutting blade and workpiece A method of controlling a relative movement of a cutting blade and a workpiece which are moved relative to each other by a movement device in an operation with a machine tool. The method includes a step of bringing the cutting blade and an object into contact with e... | 07/06/2004 |
| 6623251 | Spindle apparatus A rod body (30) is formed of magnetostrictive material and includes one end portion (30a) fixed, and a piston (35) is fixed to the other end portion (35b) of the rod body (30). The piston (35) is slidably disposed within a cylinder (36) in which there is ... | 09/23/2003 |
| 6550118 | Apparatus and method for accurate countersinking and rivet shaving for mechanical assembly operations The apparatus and method includes a spindle portion which holds a cutting tool. The drill is initially moved forwardly of a pressure foot portion of the apparatus. The pressure foot portion is then moved forwardly along with the spindle and drill to clamp... | 04/22/2003 |
| 6508614 | Spindle device and machine tool utilizing the same A spindle device equipped with a combined externally pressurized gas-magnetic bearing assembly, and a machining apparatus utilizing the spindle device. The spindle device is capable of accomplishing a high speed rotation with high rotational precision and... | 01/21/2003 |
| 6506143 | Apparatus for finishing inside diameter of work In a finishing apparatus, a plurality of works are retained at distances from each other in a direction of an X-axis. A single spindle is disposed on a table movable in the direction of the X-axis, the spindle has an axis parallel to an axis of each of bo... | 01/14/2003 |
| 6481939 | Tool tip conductivity contact sensor and method A tool tip conductivity sensor and method for determining when a tool tip of a machine contacts a workpiece. The sensor has at least two external connectors, one to the workpiece and the other to the machine. When the tool tip grazes the workpiece surface... | 11/19/2002 |
| 6478516 | Stator bar insulation stripping machine and method A machine is provided for stripping the ground wall insulation from a stator bar quickly and in such a manner that the copper strands will not be damaged. The apparatus of the invention includes a power driven cutting tool for milling or routing the insul... | 11/12/2002 |
| 6469409 | Brake apparatus for a moving apparatus driven by linear motor A brake apparatus for a moving apparatus driven by a linear motor, to support a headstock. The brake apparatus includes an air cylinder disposed parallel with a travelling direction, a compressor to supply fluid under pressure to the air cylinder, a 2-por... | 10/22/2002 |
| 6424821 | Working machine and its communication method A working machine includes a cutting machine, a tool holder which can be installed to or removed from the spindle of the cutting machine, a transmission and reception mechanism installed in the tool holder, and a controller for performing radio communicat... | 07/23/2002 |
| 6357565 | Shock-absorbing device for spindle headstocks A shock-absorbing device is intended to be mounted on a spindle headstock of a machine tool. The spindle headstock includes a motor driven spindle unit connected to an upright by a support. The shock-absorbing device comprises a yieldable structure connec... | 03/19/2002 |
| 6309151 | Device and method for controlling the machining depth of a machine for machining multilayer printed circuit boards The device includes an operating head movable by a control unit with respect to a board for machining; the operating head includes a board holder device and an electric motor for a tool spindle; the rotor of the motor rotates with respect to the stator on... | 10/30/2001 |
| 6174113 | Method and apparatus for machining a cavity in a smart card A machining method is provided for use with a smart card of the type having at least one conducting winding at some distance from the opposed faces of the card, with the end portions of the winding forming electrical connection pads for an electronic chip... | 01/16/2001 |
| 6015249 | Device and method for controlling the machining depth of a machine for machining multilayer printed circuit boards The device includes an operating head movable by a control unit with respect to a board for machining; the operating head includes a board holder device and an electric motor for a tool spindle; the rotor of the motor rotates with respect to the stator on... | 01/18/2000 |
| 5941151 | Method and apparatus for determining a workpiece's surface position A method and apparatus for determining a workpiece's surface position. One embodiment of the invention includes two conductive bodies that are insulated from each other. During a surface position determining operation, one of these bodies has a first pote... | 08/24/1999 |
| 5897275 | Machine tool for machining panels and plates A machine tool for machining panels, plates and discs, is fitted with a number of workpiece clamping devices (10) that move along a work bench (20) of the machine tool. The machine tool has sensors (8) designed to detect the position of the clamping devic... | 04/27/1999 |
| 5895181 | Dynamic error correcting system in a numerically controlled machine tool A feedrate and travelling distance before the feed orientation of a feed drive axis is obtained by analyzing NC programs when carrying out a machining action, and the lost motion correcting quantity corresponding to said feedrate and travelling distance i... | 04/20/1999 |
| 5879113 | Machine tool A machine tool comprises a spindle unit for raising a spindle on which a cutting tool is mounted by a magnetic force and supporting the spindle. The spindle unit carries out feedback control so as to maintain the spindle in its target position in the radi... | 03/09/1999 |
| 5873685 | Press processing method and press processing device The disclosed press processing method and device can chamfer work, for instance by pressing a chamfering tool against the work at a predetermined contact pressure, without detecting the pressing force of the chamfering tool against the work or without fee... | 02/23/1999 |
| 5829932 | Machine alignment compensation actuator system A machine alignment compensation actuator system is disclosed. The system is designed to selectively orient the tool head of a machine tool to maintain the tool along a desirable axis of alignment. The system includes a framework and a machine slide assem... | 11/03/1998 |
| 5795112 | Method for compensating a component of a machine tool for displacement caused by heat A temperature measuring device measures the temperature of a main shaft as a numerical value based on the outputs from temperature sensors. A temperature recorder stores the value as time series data. When the heat-induced displacement of the main shaft i... | 08/18/1998 |
| 5700117 | Machine tool for machining panels and plates A machine tool for machining panels, plates and discs, is fitted with a number of workpiece clamping devices (10) that move along a work bench (20) of the machine tool. The machine tool has sensors (8) designed to detect the position of the clamping devic... | 12/23/1997 |
| 5518346 | High-speed hydrodynamic spindle and method for machining composite and specialized metallic materials A method for machining is disclosed wherein cutting edges of a cutting tool are oriented at a negative rake of from approximately 0 degrees to -10 degrees. The tool is rotated at a speed of between approximately 15,000 rpm to approximately 30,000 rpm, aft... | 05/21/1996 |
| 5312212 | Axially compliant tool holder An axially compliant tool assembly for a programmable position controller is disclosed. Various construction details have been developed which provide a responsive means to make the tool axially compliant to deviations between the programmed path of the t... | 05/17/1994 |
| 5277529 | Sensor-controlled deburring and cutting sensor to carry out the process The invention relates to a sensor-system for metal workpieces, especially cast components (casting cleansing), and a cutting sensor for its implementation, and is intended to improve deburring quality rationally and effectively. To this end, relatively co... | 01/11/1994 |
| 5240359 | Machining apparatus Machining apparatus comprises a boom displaceable along spaced rails and a carriage displaceable along the boom perpendicularly to the displacement direction of the boom. A machining station is adjustably supported on the carriage by three adjustment mean... | 08/31/1993 |
| 5165829 | End-effector apparatus An end-effector apparatus, used in combination with a machining device and robotic arm, for use in template-guided robotic machining a workpiece. The end-effector apparatus includes a holding means which holds a guide bushing against the machining templat... | 11/24/1992 |
| 5079874 | Process for controlling an automatic machine for cleaning castings An automatic grinding machine for cleaning castings, including a machine stand, supporting mutually adjustable clamping or holding devices for processing a casting, and further including a tool holder, on which a grinding and/or cutting-off disk is adjust... | 01/14/1992 |
| 5044844 | Machining apparatus Machining apparatus comprises a boom rotatable about a pivot support within a cylindrical workpiece with a machining station, such as a milling cutter, mounted on the remote end of the boom. Two angularly spaced wheel units are provided on respective side... | 09/03/1991 |
| 4831785 | Wireless arrangement for controlling the speed of advance of a tool toward a workpiece A vibration sensor, located on a chuck member for a workpiece and rotating therewith, detects the signal emitted at the instant a tool member contacts the workpiece. The vibration sensor produces an output signal to modulate a transmitter and a receiver f... | 05/23/1989 |
| 4784541 | High-precision equipment A high precision processing equipment includes a contactor provided in a numerical control processing unit and moved in a direction parallel to a spindle, so that the contactor is brought into contact with a workpiece or its support member during feeding ... | 11/15/1988 |
