With Feeding Of Tool Or Work Holder Patents (Class 451/11)
  • Patent number: 10293450
    Abstract: A steady rest for supporting, e.g., bearing points on shaft parts of crankshafts, during the grinding of central and/or eccentric workpiece regions. For the grinding, the steady rest is brought from a retracted position to a supporting position against the workpiece region to support the workpiece region at respective circumferential regions. The supporting parts are each arranged on a lateral flank of a prism opening in a fork-like manner on a steady-rest arm in a fixed position in relation to each other and to the steady-rest arm, the supporting parts thus forming an opening angle to each other. The supporting parts are arranged below center with respect to the longitudinal axis of the workpiece region such that an angle bisector between the two supporting parts has a fixed acute angle to the vertical extending through the longitudinal axis of the workpiece region and the CNC-controlled advancement occurs along said angle bisector.
    Type: Grant
    Filed: October 9, 2014
    Date of Patent: May 21, 2019
    Assignee: Erwin Junker Maschinenfabrik GmbH
    Inventor: Erwin Junker
  • Patent number: 10268179
    Abstract: An NC machine tool is provided with a display device capable of displaying processing time individually for each function command of a block of an NC program. The display device of the NC machine tool is capable of displaying processing time for each function command. Thus, an operator is able to identify processing time for each function command via the display device.
    Type: Grant
    Filed: April 15, 2014
    Date of Patent: April 23, 2019
    Assignee: FUJI CORPORATION
    Inventors: Masaharu Ito, Shinya Kumazaki, Kazuyuki Kojima
  • Patent number: 10207382
    Abstract: The invention concerns a method for machining a workpiece (1) by a grinding machine, comprising the step of rotating and translating the workpiece along a first axis (4) toward the first abrasive wheel; rotating an abrasive wheel (6) around a second axis (61) and translating it along a third axis (62) such that the abrasive wheel grinds a peripheral portion (103) of the workpiece; the abrasive wheel being positioned in a position in translation along the third axis; and wherein the position in translation is determined as a function of a position and of an angular position of the workpiece around the first axis. The invention further related to a grinding machine for carrying out such method.
    Type: Grant
    Filed: July 13, 2015
    Date of Patent: February 19, 2019
    Assignee: Rollomatic SA
    Inventors: Jean-Charles Marty, David Bissat
  • Patent number: 10150200
    Abstract: The occurrence of grinding unevenness is prevented even when the movement speed of a robot is changed. Provided is a grinding robot system including: a motor-driven grinder that performs grinding; a robot that grinds a grinding target by means of the grinder in a state in which one of the grinder or the grinding target is attached to a distal end thereof and is moved, and the other is set at a fixed position; and a control unit that controls the robot and the grinder, wherein the control unit calculates a rotational-speed command value for the grinder that changes according to the movement speed of the distal end of the robot and controls the rotational speed of the grinder on the basis of the calculated rotational-speed command value.
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: December 11, 2018
    Assignee: FANUC CORPORATION
    Inventor: Tetsuji Ueda
  • Patent number: 10144109
    Abstract: A polisher includes a wafer carrier, a polishing head, a movement mechanism, and a rotation mechanism. The wafer carrier has a supporting surface. The supporting surface is configured to carry a wafer thereon. The polishing head is present above the wafer carrier. The polishing head has a polishing surface. The polishing surface of the polishing head is smaller than the supporting surface of the wafer carrier. The movement mechanism is configured to move the polishing head relative to the wafer carrier. The rotation mechanism is configured to rotate the polishing head relative to the wafer carrier.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: December 4, 2018
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Teng-Chun Tsai, Shen-Nan Lee, Yung-Cheng Lu, Chia-Chiung Lo, Shwang-Ming Jeng, Yee-Chia Yeo
  • Patent number: 10132167
    Abstract: A method for finishing a film cooled article includes providing a film cooled article including at least one inner cooling plenum and at least one opening connecting the inner cooling plenum to an exterior surface of the film cooled article, positioning a machining element in contact with the exterior surface of the film cooled article, automatically moving the machining element along the exterior surface while maintaining contact between the machining tool and the surface, identifying an actual position of at least one film opening based on sensory feedback from the machining element using a controller, removing material from the exterior surface at the at least one film opening using the machining element, thereby creating a depression at the at least one film opening.
    Type: Grant
    Filed: June 16, 2015
    Date of Patent: November 20, 2018
    Assignee: United Technologies Corporation
    Inventors: John P. Rizzo, Jr., Alan C. Barron
  • Patent number: 10131033
    Abstract: A method and an apparatus for smart automation of robotic surface finishing of a three-dimensional surface of a work piece is described. A three-dimensional motion path is created along the surface of the work piece. A variable contact force profile is specified along the three-dimensional motion path. The three-dimensional motion path is modified based on the specified variable contact force profile. The surface of the work piece is finished using one or more surface finishing tools along the modified three-dimensional motion path. The surface of the work piece includes at least a flat region and a curved region.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: November 20, 2018
    Assignee: Apple Inc.
    Inventors: Max A. Maloney, Howard E. Bujtor, Brian K. Miehm
  • Patent number: 10058974
    Abstract: A method for performing a CMP process is provided. The method includes performing the CMP process. The method further includes during the CMP process detecting a motion of a carrier head about a rotation axis beside a polishing pad. The method also includes producing a control signal corresponding to a detected result of the motion. In addition, the method includes prohibiting the rotation of the carrier head about a rotation axis by a driving motor which is controlled by the control signal. And, the method includes selecting a point of time at which the CMP process is terminated after the control signal is substantially the same as a threshold value.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: August 28, 2018
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD
    Inventors: Chih-Hung Chen, Kei-Wei Chen, Ying-Lang Wang
  • Patent number: 9991110
    Abstract: A mirror-finishing chamfer polishing is applied using an abrasive-grain-free polishing solution to a chamfered portion of a semiconductor wafer having an oxide film on a top side or the top and bottom sides of the semiconductor wafer and having no oxide film on the chamfered portion. Further, prior to the mirror-finishing chamfer polishing, a pre-finish mirror chamfer polishing is applied using an abrasive-grain-containing polishing solution to the chamfered portion of the semiconductor wafer having the oxide film on the top side or the top and bottom sides and on the chamfered portion.
    Type: Grant
    Filed: November 19, 2014
    Date of Patent: June 5, 2018
    Assignee: SUMCO CORPORATION
    Inventors: Kazuaki Kozasa, Syunya Kobuchi, Katsuhisa Sugimori
  • Patent number: 9933618
    Abstract: A cleaning apparatus includes: an accommodation unit that accommodates a cleaning cloth; a drawing-out unit that draws out the cleaning cloth; a cleaning clot setting mechanism unit including an ascend/descend member that ascends and descend together with the cleaning cloth drawn out by the drawing-out unit; and a projection unit that upwardly projects as far as a position between an ascended position and a descended position of the ascend/descend member. When the ascend/descend member is located at the ascended position, the cleaning cloth can be drawn out, and when the ascend/descend member is located at the descended position, the projection unit engages the cleaning cloth, and a robot causes an optical device to be pressed against the cleaning cloth engaged by the projection unit, thereby cleaning the optical device.
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: April 3, 2018
    Assignee: Fanuc Corporation
    Inventor: Makoto Izaki
  • Patent number: 9862087
    Abstract: A device for blocking eyeglass lenses onto blocks using a bonding mass, by which the eyeglass lens is connected to the block in a form-fit and/or force-closed manner, having several stations, between which the eyeglass lens and/or the block is transported, at least one blocking station, in which the block is connected to the eyeglass lens using the bonding mass, a transport arm having a retaining head arranged thereon for positioning the eyeglass lens in the blocking station, wherein the transport arm is designed as a pivot arm and has at least one pivot axis (S1), by means of which the transport arm and the retaining head can be moved between at least two stations, and at least one conveying arm having a retainer for the block or an eyeglass lens, wherein the conveying arm has a pivot axis (S2), which is arranged parallel or coaxial to the pivot axis (S1) and by which the retainer can be moved between at least two stations.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: January 9, 2018
    Assignee: SCHNEIDER GMBH & CO. KG
    Inventors: Gunter Schneider, Helwig Buchenauer, Ulf Börner, Klaus Krämer
  • Patent number: 9855637
    Abstract: A method and system for observing and monitoring thermal characteristics of a machining operation, such as a surface finishing operation, performed on a workpiece is disclosed. The surface finishing operation can be performed on the workpiece in order to remove a surface defect, e.g. a parting line, on a surface of the workpiece and/or to provide a mirror-like finish to the workpiece. In one embodiment, an emissive layer is applied to the workpiece to increase a thermal emissivity of the workpiece. In some embodiments, a finishing surface, such as a polishing or buffing wheel, and/or a lubricant used in a finishing operation is monitored. A thermal profile of the surface of the workpiece, finishing surface and/or lubricant can be obtained. The finishing operation can be modified in response to the monitored thermal characteristics to prevent the occurrence of defects and improve the efficacy of the finishing operation.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: January 2, 2018
    Assignee: Apple Inc.
    Inventors: Lucas Allen Whipple, Simon Regis Louis Lancaster-Larocque, Collin D. Chan, Christopher R. Fagan, Vincent Yan, Ian S. Theilacker, Brian K. Miehm, Shravan Bharadwaj
  • Patent number: 9849926
    Abstract: A robotic device may traverse a path in a direction of locomotion. Sensor data indicative of one or more physical features of the environment in the direction of locomotion may be received. The implementation may further involve determining that traversing the path involves traversing the one or more physical features of the environment. Based on the sensor data indicative of the one or more physical features of the environment in the direction of locomotion, a hydraulic pressure to supply to the one or more hydraulic actuators to traverse the one or more physical features of the environment may be predicted. Before traversing the one or more physical features of the environment, the hydraulic drive system may adjust pressure of supplied hydraulic fluid from the first pressure to the predicted hydraulic pressure.
    Type: Grant
    Filed: July 23, 2014
    Date of Patent: December 26, 2017
    Assignee: Boston Dynamics, Inc.
    Inventors: John Aaron Saunders, Michael Murphy, Steven D. Potter
  • Patent number: 9842746
    Abstract: Provided are a purge gas spraying plate and a fume removing apparatus, and more particularly, a purge gas spraying plate capable of spraying a purge gas, which sprays the purge gas along a curvature of a wafer and efficiently removes fumes remaining on the wafer because a concave portion is formed at one side thereof and a spraying hole and a support member configured to support the wafer are formed in the concave portion, and a fume removing apparatus having the same.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: December 12, 2017
    Inventor: Bum Je Woo
  • Patent number: 9766612
    Abstract: A method of processing structurally identical workpieces using a numerically controlled workpiece processing apparatus includes processing a first workpiece according to a first desired tool path specified for a tool of the numerically controlled workpiece processing apparatus by closed-loop controlling a working distance between the tool and the workpiece to achieve a defined desired distance, such that when processing the first workpiece, the tool is moved along a distance-controlled actual tool path. The method further includes optimizing the first desired tool path for a second workpiece based on the distance-controlled actual tool path of the first workpiece to provide a second desired tool path and processing the second workpiece according to the second desired tool path.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: September 19, 2017
    Assignee: TRUMPF Laser- und Systemtechnik GmbH
    Inventor: Wolf Wadehn
  • Patent number: 9737966
    Abstract: The present invention relates to a fastening tool for dynamically fastening parts for machining, said tool being formed by an annular frame (1) which is fastened to a rotary supporting means (2) arranged around the location of the machining tool (4) on a tool-holder head (3). The annular frame (1) incorporates a tamper formed by a rotating ball (5) and, in a diametrically opposite position, a tilting clamp (6) which incorporates a counter-tamper formed by another rotating ball (8). According to the invention, a cantilevered portion (9.1) of a part can be seized between the balls (5) and (8) of the tamper and counter-tamper in order to prevent bending and vibrations in relation to same during machining.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: August 22, 2017
    Inventor: Manuel Torres Martinez
  • Patent number: 9656367
    Abstract: An assembly includes a carrier device having proximal and distal ends. The carrier device includes a workpiece platform along the proximal end. The workpiece platform supports one or more slider bars. The carrier device attaches to a lapping machine. An adaptive component, including at least one spring, has a first portion that couples to the carrier device and a second portion that couples to a grinding-slicing machine.
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: May 23, 2017
    Assignee: Seagate Technology LLC
    Inventors: Yuhong Xiong, Marc Ronshaugen, Joel Hoehn, Kevin Mayer, Paul Gallup, Gordon Jones
  • Patent number: 9597799
    Abstract: A method for machining a robot-guided component with a tool which is fastened in an articulated manner to a tool holder is disclosed. The method includes detecting a deflection of the tool with respect to the tool holder from a desired position and changing a pose of a robot that is guiding the robot-guided component on a basis of the detected deflection.
    Type: Grant
    Filed: October 26, 2011
    Date of Patent: March 21, 2017
    Assignee: MTU Aero Engines AG
    Inventors: Joerg Windprechtinger, Daniel Hodel
  • Patent number: 9427842
    Abstract: Systems and methods for correcting read/write overlay errors in the manufacture of magnetic transducers for storage drives are provided. One such system includes a twisting tool configured to receive and secure a row bar having an elongated rectangular block shape and including a plurality of magnetic transducers spaced apart along a length of the row bar, and where the twisting tool is configured to twist the row bar at a plurality of areas along the length of the row bar.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: August 30, 2016
    Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.
    Inventors: Mark D. Moravec, Chakkrit Supavasuthi, Theera Yaemglin
  • Patent number: 9366614
    Abstract: A porosity measuring device (10) according to the present invention includes a magnetic field generating section (20), a dispersoid measuring section (30) configured to measure movement of a dispersoid (s) dispersed in a dispersion medium (m) in a state where a magnetic field is generated by the magnetic field generating section (20), and an operating section (40) configured to obtain a porosity of the dispersoid (s) on the basis of a measurement result of the dispersoid measuring section (30). The operating section (40) obtains a magnetophoretic velocity of the dispersoid (s) from the measurement result of the dispersoid measuring section (30). The operating section (40) preferably obtains the magnetophoretic velocity of the dispersoid (s) from the measurement result of the dispersoid measuring section (30).
    Type: Grant
    Filed: August 2, 2012
    Date of Patent: June 14, 2016
    Assignee: OSAKA UNIVERSITY
    Inventors: Makoto Kawano, Hitoshi Watarai
  • Patent number: 9174316
    Abstract: A workpiece is fixed by a retracting mechanical chuck mounted on a spindle head of a five-axis control machining center. The apparent outer diameter of the workpiece is increased by a jig. Clamp surfaces of the jaws and a support surface of the jig are formed on the machining center. A cutting tool is mounted on a spindle by an automatic tool exchanger. The workpiece is rotated about an axis to grind an end surface of the workpiece to approximately a predetermined target shape, which is a spherical surface. A grinder is then mounted on the spindle by the automatic tool exchanger, and the grinder is set relative to the workpiece by five-axis control such that the inclination angle, the offset amount, etc. satisfy a predetermined relationship according to the desired grinding. The grinder is then fed in the Z-axis direction to form the spherical surface by grinding.
    Type: Grant
    Filed: January 21, 2011
    Date of Patent: November 3, 2015
    Assignee: NTN CORPORATION
    Inventors: Kohei Higashi, Satoshi Sugitatsu
  • Patent number: 9108287
    Abstract: Crankshaft rod bearings are pre-ground and finish-ground in a first grinding station and the crankshaft main bearings are then pre-ground and finish-ground in a second grinding station. The crankshaft is first mounted centered between the two points of the rotary drive. The chuck has two support members which can be moved in the radial direction and which are then positioned against the main bearing in a self-equalizing manner. In the engaged position, the support members are locked tightly to the chuck by locking pins. A pivoting clamping member is then clamped with the operating end thereof against the main bearing.
    Type: Grant
    Filed: October 21, 2010
    Date of Patent: August 18, 2015
    Assignee: Erwin Junker Maschinenfabrik GmbH
    Inventor: Georg Himmelsbach
  • Patent number: 9039489
    Abstract: An automated method for reconditioning a plurality of digital discs within a reconditioning apparatus is disclosed. The method comprises holding the digital discs in a load area, and then transferring each of the digital discs from the load area to at least one workstation with a disc transfer mechanism. The method also comprises reconditioning each of the digital discs transferred to the workstation with at least one worktool operable to remove a portion of the protective coating of each of the digital discs without removal of the data underlying the protective coating. The method further comprises transferring each of the digital discs from the workstation to an unload area with the disc transfer mechanism, and then holding the digital discs in the unload area for manual retrieval. Advantageously, the digital discs may be automatically reconditioned within the reconditioning apparatus without manual manipulation of the digital discs during the reconditioning process.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: May 26, 2015
    Assignee: DISC GO TECHNOLOGIES, INC.
    Inventors: Ivan George Cooper, Mark Charles Chaplin
  • Publication number: 20150140901
    Abstract: The method is for sharpening a blade. An automatic sharpening apparatus is provided that has a holder. A blade is placed into the holder. A grinding-wheel driving motor, in operative engagement with a wheel on a spindle, rotates a grinding wheel. A grinding assembly motor moves the grinding wheel in an x-direction towards the blade. A linear motor moves the grinding wheel from a first position to a second position in a z-direction without moving the grinding-wheel driving motor. The rotating grinding wheel engages the blade. The grinding wheel sharpens the blade.
    Type: Application
    Filed: November 5, 2014
    Publication date: May 21, 2015
    Inventor: Magnus Eriksson
  • Patent number: 9033009
    Abstract: Methods are described for mechanically scraping surfaces of boards, such as flooring boards, to impart random-looking scraped profiles therein. An apparatus for mechanically scraping boards to form the scraped board products also is described. A board, such as a flooring board, having a random-looking scraped appearance that includes overlapping multiple scrape patterns is described. Boards, such as flooring boards, having a simulated rustic or distressed appearance made with the methods and apparatus also are described.
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: May 19, 2015
    Assignee: Mannington Mills, Inc.
    Inventors: Robert J. Peronto, Timothy C. Johnson, Michael D. Compton, Danny R. Smith
  • Patent number: 9033762
    Abstract: A master servo motor and a slave servo motor that synchronously drive for rotation a master main spindle provided with a center that supports one end of a work piece and a slave main spindle provided with a center that supports the other end of the work piece are included. Before grinding, a slip detection cycle that detects a limit current value for the servo motors, at which the work piece and the centers slip, is executed and, during grinding, a grinding condition is changed to prevent a slip between the work piece and the centers in advance at the time when any one of current values of the servo motors has reached a slip threshold value set on the basis of the limit current value.
    Type: Grant
    Filed: June 28, 2010
    Date of Patent: May 19, 2015
    Assignee: JTEKT Corporation
    Inventor: Akira Makiuchi
  • Publication number: 20150133034
    Abstract: The present disclosure relates to a machine tool for machining workpieces, particularly a grinding machine, and to a method for positioning a spindle head of such a machine tool. The machine tool comprises a workpiece holder for receiving a workpiece, and a spindle head for receiving a tool, particularly a grinding wheel, wherein the spindle head is movable by motor with respect to the workpiece holder, wherein a handle is arranged at the spindle head and comprises at least one detector that is arranged to detect an impact on the handle, and wherein a control device is provided that is arranged to move the spindle head in at least one operation mode by motor in a defined manner dependent on the detected impact on the handle.
    Type: Application
    Filed: January 16, 2015
    Publication date: May 14, 2015
    Inventors: Michael LUTHI, Mark SCHNYDER
  • Publication number: 20150133033
    Abstract: A platen assembly includes a platen body, a polishing pad, and a fountain slurry supplier. The platen body has an upper surface. The polishing pad is disposed on the upper surface of the platen body. The fountain slurry supplier is at least partially disposed on the upper surface of the platen body for supplying slurry up onto the polishing pad.
    Type: Application
    Filed: November 13, 2013
    Publication date: May 14, 2015
    Applicant: Taiwan Semiconductor Manufacturing CO., LTD.
    Inventors: Shich-Chang Suen, Chin-Hsiang Chan, Liang-Guang Chen, Yung-Cheng Lu
  • Patent number: 9028295
    Abstract: A grinder for sharpening the blades of reel mowers automatically to grind the underside of the blade of the reel mower.
    Type: Grant
    Filed: February 9, 2012
    Date of Patent: May 12, 2015
    Assignee: Bernhard and Company, Ltd.
    Inventors: Paul Bradnam, Gary Bonfield
  • Patent number: 9017141
    Abstract: A method for deburring a ground metal part includes loading a ground metal part into a carrier, contacting a first planar surface of the ground metal part with a first grinding wheel, and contacting a second planar surface of the ground metal part with a second grinding wheel. The first grinding wheel is rotated in a first rotational direction. The second grinding wheel is rotated also in the first rotational direction. After the first grinding wheel is rotated in the first rotational direction, the first grinding wheel is then rotated in a second rotational direction, which is opposite to the first rotational direction. After the second grinding wheel is rotated in the first rotational direction, the second grinding wheel is also rotated in the second rotational direction.
    Type: Grant
    Filed: January 4, 2013
    Date of Patent: April 28, 2015
    Assignee: White Drive Products, Inc.
    Inventor: Gary Dean Lowe
  • Patent number: 9017138
    Abstract: A load cup apparatus for transferring a substrate in a processing system includes a pedestal assembly having a substrate support, an actuator, and a controller. The actuator is configured to move the pedestal assembly into a loading position in contact with a retaining ring of a carrier head and to generate a retaining ring thickness signal based on a distance travelled by the pedestal assembly. The controller is configured to receive the retaining ring thickness signal from the actuator.
    Type: Grant
    Filed: January 24, 2013
    Date of Patent: April 28, 2015
    Assignee: Applied Materials, Inc.
    Inventors: Hung Chih Chen, Thomas H. Osterheld, Charles C. Garretson, Jason Garcheung Fung
  • Publication number: 20150111471
    Abstract: A smoothing method and a smoothing apparatus uses a belt grinding apparatus, including an endless grinding belt and a press pad that presses the grinding belt against a welded area, and uses this belt grinding apparatus in two different modes after obtaining information on heights of surfaces of two welded members along a weld bead of the two welded members. The first mode corresponds to a bead removing step in which the grinding belt is pressed against a welded area by the press pad to reduce the height of the weld bead. The next mode corresponds to a smoothing step in which the grinding belt presses against the welded area by the press pad while being made to move along the surfaces of the two welded members to smooth the welded area.
    Type: Application
    Filed: May 22, 2013
    Publication date: April 23, 2015
    Applicant: SHIROKI CORPORATION
    Inventors: Jiro Yoshihara, Isami Mituhashi, Kazuhisa Shirai
  • Patent number: 9011202
    Abstract: A method of controlling a polishing operation includes obtaining a sequence over time of measured spectra with an in-situ optical monitoring system during polishing. For each measured spectrum from the sequence an optical model is fit. The optical model includes dimensions of a repeating structure and the fitting includes calculating a output spectrum using diffraction effects of the repeating structure, and parameters of the optical model include an endpoint parameter and a parameter of the repeating structure. The fitting generates the sequence of fitted endpoint parameter values, and at least one of a polishing endpoint or an adjustment of a pressure to the substrate is determined from the sequence of fitted endpoint parameter values.
    Type: Grant
    Filed: April 25, 2012
    Date of Patent: April 21, 2015
    Assignee: Applied Materials, Inc.
    Inventor: Jeffrey Drue David
  • Publication number: 20150099427
    Abstract: A carrier may be configured and operated to engage a lapping plate with a plurality of physically separated sliders attached to a common adhesive of the carrier. The carrier can be constructed to have at least one finger adjacent to and capable of translating a single slider of the plurality of physically separated sliders.
    Type: Application
    Filed: October 3, 2013
    Publication date: April 9, 2015
    Applicant: Seagate Technology LLC
    Inventor: Mark Allen Herendeen
  • Publication number: 20150065010
    Abstract: A double-side polishing apparatus for a work according to the present invention includes one or more work thickness measuring devices and a control unit. The double-side polishing method for a work includes the steps of: first polishing for polishing both surfaces of the work; first measurement for measuring the thickness of the work; in the first measurement step, when the thickness of the work is found to reach the predetermined thickness, terminating the orbital motion of the carrier plate; second polishing both surfaces of the work while the carrier plate performs only rotational motion; second measurement for measuring the thickness of the work at predetermined position(s); and determining a time for terminating polishing based on the result of the measurement of the thickness of the work in the second measurement step.
    Type: Application
    Filed: August 15, 2014
    Publication date: March 5, 2015
    Inventors: Tomonori MIURA, Hiroto FUKUSHIMA
  • Patent number: 8968052
    Abstract: Systems and methods are provided for use in processing and/or grinding wafers or other work products. Some embodiments provide a grinding apparatus that comprise a base casting; a rotary indexer configured to rotate within the base casting; a work spindle secured with the rotary indexer; a work chuck coupled with the first work spindle, wherein the first work spindle is configured to rotate the first work chuck; a bridge casting secured relative to the base casting, wherein the bridge casting bridges across at least a portion of the rotary indexer and is supported structurally forming a closed stiffness loop; a grind spindle secured with the bridge casting; and a grind wheel cooperated with the grind spindle, wherein the bridge casting secures the grind spindle.
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: March 3, 2015
    Assignee: Strasbaugh
    Inventors: Thomas A. Walsh, Michael R. Vogtmann
  • Publication number: 20150034607
    Abstract: A grinding system includes a welding gun movable relative to a workpiece. A pair of clamp devices move relatively toward each other to clamp a workpiece. A welding tip is disposed on one of the pair of clamp devices. A detector detects a relative movement amount of the welding tip with respect to the other clamp device. A dresser grinds the welding tip. While the dresser is grinding the welding tip, a determinator determines whether to make the dresser end grinding the welding tip based on the movement amount detected by the detector. When the determinator determines to make the dresser end grinding the welding tip, an instructor instructs the dresser to end grinding the welding tip.
    Type: Application
    Filed: July 29, 2014
    Publication date: February 5, 2015
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Yosuke MORI, Teppei SONODA
  • Patent number: 8944887
    Abstract: An apparatus for performing both edge trimming and surface grinding includes two spindles for holding two workpieces, a bridge element laterally movable relative to the spindles, and two grinding wheels coupled to the bridge element. The apparatus may be a surface grinding apparatus that includes a system for enabling the surface grinding apparatus to additionally perform edge trimming. A method for processing the workpieces entails placing the two workpieces on the two spindles of the apparatus, directing the bridge element to move laterally to an edge trimming position to trim the outer edge of one workpiece using one of the grinding wheels, to move laterally to another edge trimming position to trim the outer edge of the other workpiece using one of the grinding wheels, and to move laterally to surface grinding positions to perform surface grinding on both of the workpieces using one or both of the grinding wheels.
    Type: Grant
    Filed: August 12, 2011
    Date of Patent: February 3, 2015
    Assignee: Axus Technology, LLC
    Inventors: Daniel R. Trojan, Richard Ciszek, Clifford Daniel
  • Patent number: 8944315
    Abstract: A device and a method for processing an optical lens are proposed, whereby lens-production data and/or geometric data of the lens are determined from desired optical data of the lens when a corresponding activation code is acquired. Preferably, the lens or a block piece and/or an assigned shipping container is/are provided with the activation code and/or other information relative to the lenses that are to be processed.
    Type: Grant
    Filed: September 29, 2011
    Date of Patent: February 3, 2015
    Assignee: Schneider GmbH & Co. KG
    Inventor: Gunter Schneider
  • Patent number: 8943998
    Abstract: An apparatus for cladding the interior surfaces of a curved pipe section includes a flexible track that is positioned longitudinally within the curved pipe and supported at opposite ends to corresponding opposite ends of the curved pipe. The flexible track is caused to bend and conform to the radius of curvature of an interior surface of the curved pipe. A robotic crawler is supported on the track section and carries a material applicator head. The robotic crawler is driven back-and-forth across the track section while the material applicator head applies an overlay material to the interior surface of the curved pipe. In a method, the position of the curved pipe in space, the travel direction and speed of the crawler and the position of the application head are all coordinated to maintain the application of the overlay material in the “flat plane” position.
    Type: Grant
    Filed: November 15, 2010
    Date of Patent: February 3, 2015
    Inventor: Don Gano
  • Patent number: 8944884
    Abstract: A method of controlling a polishing operation includes polishing a first layer of a substrate, during polishing, obtaining a sequence over time of measured spectra with an in-situ optical monitoring system, for each measured spectrum from the sequence of measured spectra, fitting an optical model to the measured spectrum, the fitting including finding parameters that provide a minimum difference between an output spectrum of the optical model and the measured spectrum, the parameters including an endpoint parameter and at least one non-endpoint parameter, the fitting generating a sequence of fitted endpoint parameter values, each endpoint parameter value of the sequence associated with one of the spectra of the sequence of measured spectra, and determining at least one of a polishing endpoint or an adjustment of a pressure to the substrate from the sequence of fitted endpoint parameter values.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: February 3, 2015
    Assignee: Applied Materials, Inc.
    Inventors: Jeffrey Drue David, Dominic J. Benvegnu
  • Patent number: 8920211
    Abstract: A truing device of a grinding machine includes: a truer that corrects a shape of a grinding wheel; a swivel table that supports the truer such that the truer is swivelable about a swivel axis Ac; detecting means for directly detecting a distance from a truing edge position of the truer, which contacts the grinding wheel during correction of the shape of the grinding wheel, to a swivel center O of the swivel table; and control means for controlling the truing edge position of the truer with respect to the grinding wheel based on the distance L detected by the detecting means to true the grinding wheel.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: December 30, 2014
    Assignee: JTEKT Corporation
    Inventors: Yoshio Wakazono, Tetsuro Furuhata, Hisanobu Kobayashi
  • Patent number: 8915767
    Abstract: A sandpaper replacement device is used for replacing sandpaper of a polishing device, including a support platform, a driver, a driving detector sensor, a clamping member, a clamping detector and a controller. The driver includes a cylinder body and an extension rod movably positioned on the cylinder body. The cylinder body is positioned on the support platform, and the extension rod passing through and protruding out from the support platform. The driving detector sensor is positioned on the support platform adjacent to the extension rod. The clamping member includes a main body and two claws positioned oppositely to each other on the main body. The main body is mounted on the support platform away from the cylinder body. The clamping detector is positioned adjacent to the two claws. The controller is electrically connected to the driver, the driving detector sensor, the clamping detector and the clamping member.
    Type: Grant
    Filed: March 19, 2013
    Date of Patent: December 23, 2014
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Chao Shen
  • Patent number: 8915768
    Abstract: Provided is a method of phasing a threaded grinding stone, as well as a device therefor, the aforementioned method and device being such that contact or non-contact of a threaded grinding stone with a disk dresser can be detected with high accuracy, with the result that the phasing of the threaded grinding stone can be accurately performed. For the purpose of achieving the above, a threaded grinding stone (14) is phased with respect to a disk dresser (32) prior to the engagement of the threaded grinding stone (14) with the disk dresser (32) during dressing. In performing this phasing, it is determined whether or not the threaded grinding stone (14) contacted the disk dresser (32), on the basis of a voltage (V) which is commensurate with the amplitude of the elastic wave generated in the threaded grinding stone (14) at the time when the threaded grinding stone (14) contacted the disk dresser (32).
    Type: Grant
    Filed: September 28, 2009
    Date of Patent: December 23, 2014
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Yoshikoto Yanase, Kazuyuki Ishizu, Tomohito Tani
  • Patent number: 8912790
    Abstract: A measuring device for measuring a film thickness of a silicon wafer (1) comprises: position and velocity sensors (4) linearly arranged along a longitudinal direction into first and second position and velocity sensor arrays spaced apart from each other in a lateral direction, in which the position and velocity sensors (4) in the first position and velocity sensor array are in one-to-one correspondence with the position and velocity sensors (4) in the second position and velocity sensor array in the lateral direction; an eddy current sensor (2) disposed in a symmetrical plane between the first position and velocity sensor array and the second position and velocity sensor array and perpendicular to the lateral direction; and a controller connected to the position and velocity sensors (4) and the eddy current sensor (2) respectively for controlling measurement of the thickness of the film according to detection signals from the position and velocity sensors (4) and the eddy current sensor (2).
    Type: Grant
    Filed: June 9, 2011
    Date of Patent: December 16, 2014
    Assignee: Tsinghua University
    Inventors: Xinchun Lu, Pan Shen
  • Patent number: 8910552
    Abstract: Disclosed is a movable cutting tool apparatus and/or methods for cutting workpieces; either generally including a cutting tool apparatus having a cutting tool unit support apparatus including at least a substantially stationary support structure and one or more rear-mount glide rails; a cutting tool unit which is supported by the support apparatus; a cutting implement held by the cutting tool unit, whereby the cutting tool unit operates and controls the cutting implement; and, at least one fluid coolant and/or lubricant tube connected to the cutting tool unit and adapted to flow a fluid to the cutting implement in operation; wherein the cutting tool unit and the cutting implement are directly movable with the glide rails to provide reciprocal and translational movability for the cutting tool unit and the cutting implement.
    Type: Grant
    Filed: March 1, 2005
    Date of Patent: December 16, 2014
    Assignee: Blue Collar Ventures, L.L.C.
    Inventor: Michael E. Hogan
  • Patent number: 8900034
    Abstract: A control unit that relatively moves a headstock and tailstock and a tool to thereby machine a peripheral surface of a workpiece in a radial direction executes control such that a relative feed speed of the tool in the radial direction in a transitional state where an amount of warpage of the workpiece in the radial direction at a machining position increases is faster than a relative feed speed of the tool in the radial direction in a steady state where an amount of warpage of the workpiece in the radial direction at the machining position is constant. By so doing, it is possible to reduce a machining time at the time of the start of machining.
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: December 2, 2014
    Assignee: JTEKT Corporation
    Inventors: Toshiki Kumeno, Masashi Yoritsune, Takashi Matsumoto, Kazuyoshi Ohtsubo
  • Publication number: 20140349552
    Abstract: A dressing apparatus capable of bringing an overall dressing surface of a dresser into uniform sliding contact with a polishing surface of a polishing pad and capable of uniformly dressing the overall polishing surface of the polishing pad is disclosed. The dressing apparatus includes a dresser configured to rub against a polishing surface to dress the polishing surface that is used for polishing a substrate, a dresser shaft that applies a load to the dresser, at least one load-applying device configured to apply a downward load to a part of a peripheral portion of the dresser, and an operation controller configured to control operation of the load-applying device.
    Type: Application
    Filed: May 9, 2014
    Publication date: November 27, 2014
    Inventors: Satoshi Nagai, Suguru Ogura, Kaoru Hamaura
  • Patent number: 8882564
    Abstract: A gear grinding machine, whose tool spindle (18) is supported on a first swivel-motion unit (17) seated on a first linear-motion unit (15), has a second linear-motion unit (19) which is arranged on the first linear-motion unit (15) and carries a dressing spindle (21) that is capable of being driven in rotary movement.
    Type: Grant
    Filed: September 4, 2009
    Date of Patent: November 11, 2014
    Assignee: Gleason-Pfauter Maschinenfabrik GmbH
    Inventor: Claus Kobialka
  • Patent number: 8864552
    Abstract: An apparatus for grinding a cam having an outer surface with outwardly convex and outwardly concave portions has a frame and a main drive on the frame for holding the cam and rotating it about a main axis. A pair of drive motors having respective output axes generally diametrally flank the main axis. Respective carriages carrying the drive motors are shiftable on the frame radially of the main axis. One of the motors is shiftable into an inner position in which the main axis extends through the one drive motor. Respective grinding wheels are rotatable by the motors about the respective axes, and the wheel of the one motor is of substantially smaller diameter than the wheel of the other motor.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: October 21, 2014
    Assignee: EMAG Holding GmbH
    Inventor: Roland Schmitz