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| Number | Title | Issue Date |
| 7195543 | Machine tool with 5 machining axes with a continuous grinding tool profilling system A machine tool for machining a part by on-head and continuous grinding tool profiling includes a part holder support driven into rotation by first driving means around a first axis in a vertical plane, a machining system provided with a grinding tool for machining t... | 03/27/2007 |
| 7089081 | Modeling an abrasive process to achieve controlled material removal In general, techniques are described that allow an abrasive manufacturing process to achieve a controlled performance parameter, e.g., an amount of material removal, without requiring the use of feedback controls within the abrasive manufacturing process. For exampl... | 08/08/2006 |
| 7032279 | Apparatus and methods for repairing compressor airfoils in situ The apparatus includes a track mounted in the inlet of a compressor. A manipulator is mounted for movement about the track and carries three modules, the last of which mounts a tool head for movement in a Cartesian coordinate system and about the track. A measuring ... | 04/25/2006 |
| 6546306 | Method for adjusting incoming film thickness uniformity such that variations across the film after polishing minimized A method comprising determining a polishing profile produced by a polishing tool and manufacturing a process layer with a surface profile prior to polishing operations based upon the determined polishing profile of the polishing tool.... | 04/08/2003 |
| 6478661 | Apparatus and method for processing micro-V grooves A voltage is applied between a cylindrical cutting grindstone 2 that rotates about a vertical axis Y and a cylindrical truing grindstone 6 that rotates about a horizontal axis X. The vertical outer surface 2a and the horizontal lower surface 2b of the cut... | 11/12/2002 |
| 6398622 | Polishing mechanism for vehicle bumper A polishing mechanism for treating a vehicle bumper incorporating with a multi-shaft robot is disclosed. A polishing wheel is rotationally attached to an end of the robot. A rotational positioning device is provided for positioning the bumper in a positio... | 06/04/2002 |
| 6364752 | Method and apparatus for dressing polishing cloth A polishing cloth mounted on a turntable is dressed by bringing a dresser in contact with the polishing cloth for restoring the polishing capability of the polishing cloth. The dressing is performed by measuring heights of a surface of the polishing cloth... | 04/02/2002 |
| 6217412 | Method for characterizing polish pad lots to eliminate or reduce tool requalification after changing a polishing pad The present invention is directed to semiconductor processing operations, and, more particularly, chemical mechanical polishing operations. The present invention is comprised of a method for qualifying new polishing pads used in a polishing tool without t... | 04/17/2001 |
| 5643049 | Floating contact gage for measuring cylindrical workpieces exiting a grinder A gage for a thrufeed centerless grinder for post process gaging of a work piece in which the gage is mounted for movement so as to track along a moving work piece as it is moved along a path of travel from the grinder. The gage is movable in two directio... | 07/01/1997 |
| 5620358 | Method of dressing grindstone for NC grinder A dressing method comprises the steps of rotating a rotary dresser at a high speed for dressing a surface of the grindstone, previous to contact of the rotary dresser with the surface of the grindstone, and detecting a rotational vibration caused by a bea... | 04/15/1997 |
| 5375377 | Internal tray for a vibratory mill A vibratory mill includes a retractable separator basket for removing work parts from the work media after processing of parts has been completed. The basket is concentric with the work chamber bowl and is fitted around and supported by the upturn center ... | 12/27/1994 |
| 5335454 | Procedure for the numerical control of a workpiece on a grinding machine A procedure for the numerically controlled processing of a workpiece on a grinding machine having a workholder for the workpiece as well as a wheelhead equipped with a grinding wheel, the wheelhead being pivoted on a wheelslide and able to be shifted toge... | 08/09/1994 |
| 5183026 | Method and apparatus for dressing an angular grinding wheel A grinding machine having an angular type grinding wheel and a dressing apparatus therefor. The grinding wheel is formed with first and second grinding surfaces usable for grinding a cylindrical surface and shoulder end surface of a workpiece, respectivel... | 02/02/1993 |
| 5105584 | Lens cutting assembly and method and apparatus for effecting rapid replacement of lens cutting tools Quick-change methods and apparatus enable the cutting tool of a lens cutting machine to be exchanged with minimal down time of the machine. A replacement cutting tool is gauged in an off-machine gauging mechanism while the machine is able to continue an o... | 04/21/1992 |
| 5072548 | Process and apparatus for finish grinding splines or gear teeth A process and apparatus for finish grinding splines or teeth on workpieces is disclosed which includes a device to check the cross-sectional shape of the grinding portion of the grinding wheel between grinding steps. When a grinding wheel is withdrawn fro... | 12/17/1991 |
| 4926604 | Method for correcting abrasion in a robot having a wearing tool mounted thereon Burring by way of a grind stone using a robot has been rarely practiced because the correction of abrasion of the grind stone involves a problem. There has been hitherto proposed a method for correction of abrasion by making use of a force sensor or a spe... | 05/22/1990 |
| 4899718 | Apparatus for truing grinding wheel A truing apparatus for an angle grinding wheel with two grinding surfaces is provided with an AE sensor for detecting the contact of a truing tool with each of the grinding surfaces. The truing tool is provided on a follow slide which is mounted on a trav... | 02/13/1990 |
| 4858391 | Sizing apparatus for an internal grinder Sizing apparatus for an internal grinder having an oscillation motor for oscillating a grinder wheel contacting the inner peripheral surface of an annular work piece, a sizing device to generate sizing signals for measuring the bore of the work piece, a m... | 08/22/1989 |
| 4827751 | Device for machining rolls in a rolling stand A device for machining a plurality of rolls (4) which are mounted ready for use in a rolling stand (3) and form a common sizing pass (6) has at least one tool (5) which is disposed outside the sizing pass (6) for machining the working surfaces of the roll... | 05/09/1989 |
| 4815239 | Apparatus for production of involute gear tooth flanks An apparatus is disclosed in which only one working point or machining point on a machining tool, which in general can comprise a grinding wheel or disc, is in machining contact with a workpiece such as a gear blank during a machining operation. The posit... | 03/28/1989 |
| 4802311 | Method of grinding rotary workpieces The grinding of successive workpieces in a surface grinding machine with automatic transport of workpieces to and from the grinding station is interrupted at preselected intervals to replace the workpiece at the grinding station with a pattern which is co... | 02/07/1989 |
| 4751647 | Method for determining tool size and for machining The method involves moving a reference or dummy tool of known size on a toolhead slide from a known position to actuate a limit switch, moving a working tool of unknown size on the same toolhead slide from the same known position to again actuate the limi... | 06/14/1988 |
| 4750298 | Method and device for controlling the drive of different successively operated grinding disks A method and a device for controlling a drive of successively operated grinding disks which are made of different compositions. The condition, for example metallic inclusions or the like, in each individual grinding disk is scanned by means of a sensor th... | 06/14/1988 |
| 4731954 | Method and apparatus for initiating an operation for dressing a grinding wheel in conformity with its degree of bluntness In the method for introducing an operation for dressing a grinding wheel, actual differential value is formed from its infeed distance and the material removed from a workpiece, which value is compared with a desired differential value. As soon as the ac... | 03/22/1988 |
| 4676030 | Apparatus and method for detecting a tool edge A force transducer and circuit are used to detect the edge of a rotating grinding wheel. The force transducer produces an output signal indicative of a force applied thereto. The output signal is filtered by a high pass filter coupled to the output of the... | 06/30/1987 |
| 4651472 | Method of and machine for grinding rotary workpieces The grinding of successive workpieces in a surface grinding machine with automatic transport of workpieces to and from the grinding station is interrupted at preselected intervals to replace the workpiece at the grinding station with a pattern which is co... | 03/24/1987 |
| 4571891 | Apparatus for compensating for dressing tool wear during the dressing of grinding wheels The dressing tool is mounted on a cross-slide so as to be displaceable in parallel and normally with respect to the working surface or face of the grinding wheel which is to be dressed. After each dressing operation the grinding wheel is re-adjusted so as... | 02/25/1986 |
| 4571892 | Method of dressing grinding wheels in grinding machines In a grinding machine wherein a first carriage for the grinding wheel is movable at right angles to the axis of the grinding wheel toward and away from a second carriage which supports a dressing tool as well as the reciprocable or pivotable sensor of a d... | 02/25/1986 |
| 4559919 | Grinding wheel profiler A profiler for moving a dresser into and across a rotating grinding wheel to form or dress a predetermined configuration in the grinding wheel for use in grinding workpieces. The dresser is moved along two axes at a right angle to each other by lead screw... | 12/24/1985 |
| 4539779 | Method of compensating for dressing tool wear during the dressing of grinding wheels The dressing tool is mounted on a cross-slide so as to be displaceable in parallel and normally with respect to the working surface or face of the grinding wheel which is to be dressed. After each dressing operation the grinding wheel is re-adjusted so as... | 09/10/1985 |
| 4535571 | Grinding control methods and apparatus Grinding control methods and apparatus pertaining generally to maintaining the shape and sharpness of a grinding wheel, despite the tendency of the wheel face to deteriorate from the desired shape and sharpness, as grinding of a given workpiece or a succe... | 08/20/1985 |
| 4535572 | Grinding control methods and apparatus Grinding control methods and apparatus pertaining generally to maintaining the shape and sharpness of a grinding wheel, despite the tendency of the wheel face to deteriorate from the desired shape and sharpness, as grinding of a given workpiece or a succe... | 08/20/1985 |
| 4502458 | Apparatus for truing a grinding wheel An apparatus for truing a grinding wheel includes a stylus movable in response to movement of a truer in synchronism therewith, and a template disposed in confronting relation to the stylus with a gap left therebetween. The truer is controlled in its moti... | 03/05/1985 |
| 4502125 | Numerical controller for an angular slide grinding machine A numerical controller for an angular slide grinding machine capable of controlling movement of a work table with a dressing tool in a machine coordinate system in a dressing operation and a workpiece coordinate system in a grinding operation. When the wo... | 02/26/1985 |
| 4498259 | Numerical controller for a grinding machine In a computerized numerical controller for a grinding machine, various grinding modes in which a plurality of portions on a cylindrical workpiece are respectively ground and plural sets of machining data each for use in machining a corresponding one of th... | 02/12/1985 |
| 4490946 | Grinding wheel feeder in grinding machines Wear on the dressing tool is derived from an amount of movement that a grinding wheel is advanced until issuance of a signal from a sizing device for correcting data on the radius of the grinding wheel. The data on the radius of the grinding wheel is thus... | 01/01/1985 |
| 4461125 | Control circuit for an apparatus for adjusting and dressing a grinding wheel A control circuit contains, instead of the otherwise conventional feeler or scanner contact, a displacement pick-up or displacement path transmitter which delivers pulsating signals representative of the irregularities of the scanned grinding wheel. The e... | 07/24/1984 |
| 4423570 | Apparatus for dressing and adjusting a grinding wheel at a tooth flank-grinding machine An apparatus for dressing and adjusting a dished or plate-shaped grinding wheel at a tooth flank-grinding machine for a gear has an adjustable grinding wheel support at which there is mounted the grinding wheel, and a dressing carriage which is adjustable... | 01/03/1984 |
| 4420910 | Control device for a grinding machine A device for controlling the feeding of a grinding wheel (2, 16) relative to a truing device (8, 19) for the grinding wheel at truing operations in a grinding machine incorporating a measuring apparatus (9, 9a) for indicating the finished size of the grou... | 12/20/1983 |
| 4358912 | Grindstone clearance correcting device for spring grinding machine A grindstone clearance correcting device for spring grinding machine comprises a drive unit for driving a pair of grindstones for grinding both ends of a coil spring in a direction perpendicular to flat surface of a work table, and an extra length spring ... | 11/16/1982 |
