Sensing Tool Or Tool-linked Part Patents (Class 72/17.2)
  • Patent number: 8342000
    Abstract: A servo-press machine determining whether or not a drive power supply voltage between a positive power supply path and a negative power supply path that connect a power supply device and a motor rotation control section is lower than an induced voltage of a servomotor, and correcting speed-related data based on slide motion information when the servo-press machine has determined that the drive power supply voltage is lower than the induced voltage.
    Type: Grant
    Filed: January 22, 2009
    Date of Patent: January 1, 2013
    Assignee: Aida Engineering, Ltd.
    Inventor: Kazuhiro Kuboe
  • Patent number: 8096233
    Abstract: A servo press line operation control device includes a normal press operation control section, a normal transfer operation control section, an upward movement step delay determination section, a downstream-side transfer step delay correction control section, an upstream-side transfer step delay determination section, a slide downward movement step delay correction control section, and the like.
    Type: Grant
    Filed: July 6, 2009
    Date of Patent: January 17, 2012
    Assignee: Aida Engineering, Ltd.
    Inventor: Sotoyuki Kaneko
  • Patent number: 8091395
    Abstract: A system, method and software arrangement are provided for generating press-formed parts having a more consistent quality based on improved determination of processing conditions. For example, an apparatus can be configured to compare actual performance values of material properties provided by a material property database with standard values, and to adjust forming conditions such as a forming speed and a blank-holder pressure in accordance with the compared result. A control arrangement can be provided to control a press-forming device using the adjusted forming conditions. Accordingly, it may be possible to reduce occurrences of defects such as cracks and wrinkles when press-forming materials, and to obtain products having consistent quality and substantially identical shapes.
    Type: Grant
    Filed: December 27, 2010
    Date of Patent: January 10, 2012
    Assignees: Nippon Steel Corporation, Arcelor France
    Inventors: Noriyuki Suzuki, Akihiro Uenishi, Yukihisa Kuriyama, Toshiyuki Niwa, Takuya Kuwayama
  • Patent number: 7891223
    Abstract: A transfer press machine which can accurately and promptly check interference and can be easily handled is provided.
    Type: Grant
    Filed: October 28, 2005
    Date of Patent: February 22, 2011
    Assignee: Aida Engineering, Ltd.
    Inventors: Sotoyuki Kaneko, Hiroshi Hosoya, Kazuhiro Kuboe
  • Patent number: 7886564
    Abstract: A system, method and software arrangement are provided for generating press-formed parts having a more consistent quality based on improved determination of processing conditions. For example, an apparatus can be configured to compare actual performance values of material properties provided by a material property database with standard values, and to adjust forming conditions such as a forming speed and a blank -holder pressure in accordance with the compared result. A control arrangement can be provided to control a press-forming device using the adjusted forming conditions. Accordingly, it may be possible to reduce occurrences of defects such as cracks and wrinkles when press-forming materials, and to obtain products having consistent quality and substantially identical shapes.
    Type: Grant
    Filed: September 8, 2005
    Date of Patent: February 15, 2011
    Assignees: Nippon Steel Corporation, Arcelor France
    Inventors: Noriyuki Suzuki, Akihiro Uenishi, Yukihisa Kuriyama, Toshiyuki Niwa, Takuya Kuwayama
  • Patent number: 7779660
    Abstract: The invention relates to a method for deep rolling the passes or radii on the transitions between journal and cheeks or flanges of crankshafts by means of a deep rolling device (1) of a deep rolling machine, said deep rolling device having a lazy tongs-type design. The deep rolling device (1) has two tongs arms (2, 3) that are articulated to each other via a pivot joint (24). The corresponding outer ends (4, 5, 9, 10) of the tongs arms (2, 3) are provided with a deep rolling tool (6) or a force generator (11) for generating the deep rolling force. A measuring tape (18) and a sensor (19) which are provided on the pivot joint (24) are used to measure the impression depth of the deep rolling rollers (12) under the effect of the deep rolling force. A measuring device (22) mounted on the exterior (21) of a tongs arm (2) is used to measure the degree by which the tongs arm (2) bends under the effect of the deep rolling force.
    Type: Grant
    Filed: February 1, 2006
    Date of Patent: August 24, 2010
    Assignee: Hegenscheidt-MFD GmbH & Co. KG
    Inventors: Ralf Freitag, Roland Heffe, Alfred Heimann, Theo Nijssen, Frank Risters, Juergen Winnertz
  • Patent number: 7765841
    Abstract: A disclosed device and method are useful for monitoring a tube bending process. An example sensor detects a force associated with moving a mandrel in tubing during at least a portion of a tube bending process. The detected force is used to determine a quality of the tube bending process. For example, a detected pulling force provides an indication of whether a bent portion of a tube is within an acceptable range of a desired configuration. The detected pulling force is also useful to provide an indication of whether a condition of a mandrel or a machine used during the process is as expected.
    Type: Grant
    Filed: February 16, 2007
    Date of Patent: August 3, 2010
    Assignee: OES, Inc.
    Inventors: Paul Hogendoorn, Michael Reeve, Mark Adam Livingston Donkers
  • Patent number: 7357013
    Abstract: A marking device for encoding metallic workpieces with two-dimensional matrix codes includes a striking tool for forming the code recesses, driven by an electromagnetic device. The driving movement is performed against the force of a return device. A positioning device displaceable on two axes (x, y) of a plane perpendicular to the striking direction (z) is used for positioning the striking tool in the desired code positions. An electronic control device for controlling movement of the striking tool includes means for presetting a higher current for the electromagnet device during a first acceleration phase of the striking tool and a lower current during a subsequent moving phase until the workpiece is impinged. In this manner, the precision of the code recesses in the workpiece can be exactly set or maintained, so that readability of the coding is substantially improved.
    Type: Grant
    Filed: November 6, 2003
    Date of Patent: April 15, 2008
    Assignee: Borries Markier-Systeme GmbH
    Inventor: Konrad Fröhlich
  • Patent number: 7353686
    Abstract: A press comprises a servo motor (6), a ball screw (9), and a roller guide (11) in which machining accuracy is enhanced while reducing the overall size and weight, noise and vibration, and power consumption of the press.
    Type: Grant
    Filed: October 24, 2002
    Date of Patent: April 8, 2008
    Assignee: Kanemitsu Corporation
    Inventors: Toshiaki Kanemitsu, Kazuyuki Oda, Keiichiro Yamamura
  • Patent number: 7194882
    Abstract: A cold forging apparatus for forming complex shapes at a single station includes a plurality of multiple function punch assemblies disposed on intersecting axes. Each of the multiple function punch assemblies includes an inner or a center punch and an outer or ring-shaped punch surrounding and in sliding contact with the inner punch. The apparatus also includes a die holder for positioning a mass or slug of metal between the punches. A computer system controls movement of the punches and is programmable to form parts of different shapes at a single station. Off axis punches and angularly offset punches and an additional punch or punch assembly are also disclosed.
    Type: Grant
    Filed: November 5, 2003
    Date of Patent: March 27, 2007
    Inventors: Ray Travis, Paul Stone
  • Patent number: 7181942
    Abstract: An ultrasonic device and method obtains desirable crimp connections between a crimp connector and a wire, or bundle of wires, by assessing the desirability of connections made in a wire-to-wire connection and in other situations where two materials with good acoustic propagation characteristics are joined together via deformation. An embodiment of the device as a crimping tool comprises a compressing means, pulse-generating circuitry, at least one ultrasonic transmitting transducer, at least one ultrasonic receiving transducer, receiving circuitry, and a display. The user may return to a previously crimped connection and assess the desirability of the connection by compressing the device about the connection, sending an acoustic signal through the crimp, and comparing the received signal to a signal obtained from known desirable connections.
    Type: Grant
    Filed: September 9, 2004
    Date of Patent: February 27, 2007
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: William T. Yost, K. Elliott Cramer, Daniel F. Perey
  • Patent number: 7165490
    Abstract: A press forming method is disclosed, wherein press forming can be effected at high speed while maintaining the horizontal state of a slide plate in press-forming a work-piece by a press machine. A press machine is used in which the slide plate is pressed by a plurality of drive sources using servo-motors for driving. The speed of one of the plurality of drive sources is set to a target speed for production forming for the drive source, and by using a function that shows a delay in terms of a speed of the drive source and a load thereon and also using a load separately found, the respective speeds of the drive sources are found so as to eliminate the delay between the drive sources. Trial forming is repeated on the basis of the thus-found speed to derive conditions that enable press-forming at high speed while maintaining the horizontal state of the slide plate.
    Type: Grant
    Filed: October 9, 2003
    Date of Patent: January 23, 2007
    Assignee: Hoden Seimitus Kako Kenkyusho Co., Ltd.
    Inventors: Shoji Futamura, Keizo Unno
  • Patent number: 7152444
    Abstract: A press forming machine comprising driving shafts for pressing three or more respective pressure points and displacement measuring means for measuring a displacement close to the pressure point. A central driving shaft among the driving shafts has a gap (the slack) larger than those of other driving shafts between each of the driving shafts and a pressure plate. During press formation at a trial stage, a positional displacement close to each pressure point is measured by the displacement measuring means and control data is supplied to each driving source for driving a driving shaft to drive the pressure plate. Then, production press-formation is performed in accordance with the above result. Therefore, the central driving source can avoid overload by the slack of the driving shaft with the pressure plate.
    Type: Grant
    Filed: March 23, 2004
    Date of Patent: December 26, 2006
    Assignee: Hoden Seimitsu Kako Kenkyusho Co., Ltd.
    Inventors: Takeo Matsumoto, Shoji Futamura
  • Patent number: 7036226
    Abstract: A crimp state estimation apparatus includes: an information input section for inputting information on an crimp contact terminal, an electric wire, an anvil, and the crimper and an input compression ratio of a core wire of the electric wire; and an estimation unit for calculating a total length of the bottom wall and the pair of crimp pieces after crimp in a cross section orthogonal to the core wire based on the information and the input compression ratio and estimating a cross-sectional shape of the bottom wall and the pair of crimp pieces after crimp based on the total length.
    Type: Grant
    Filed: February 12, 2004
    Date of Patent: May 2, 2006
    Assignee: Yazaki Corporation
    Inventors: Megumi Saito, Naoki Ito
  • Patent number: 6941783
    Abstract: A double action oil hydraulic press is provided having a main cylinder for actuating a slide and a lower part forming cylinder for actuating a lower part forming unit, wherein the operations of the cylinders are controlled through the combined control of the rotation of an oil hydraulic pump of a power unit and servo valves whereby the amount of operation oil that must be used is reduced.
    Type: Grant
    Filed: November 6, 2003
    Date of Patent: September 13, 2005
    Assignee: Kubota Iron Works Co., Ltd.
    Inventors: Shigeaki Yamanaka, Takeshi Kazama
  • Patent number: 6941782
    Abstract: A cold forging apparatus for forming complex shapes at a single station includes a pair of confronting multiple function punch assemblies disposed on a common axis. Each of the multiple function punch assemblies includes an inner or a center punch and an outer or ring-shaped punch surrounding and in sliding contact with the inner punch. The apparatus also includes a die holder for positioning a mass or slug of metal between the punches. A computer system controls movement of the punches and is programmable to form parts of different shapes at a single station.
    Type: Grant
    Filed: November 12, 2002
    Date of Patent: September 13, 2005
    Inventors: Ray Travis, Paul Stone
  • Publication number: 20040221634
    Abstract: A crimp state estimation apparatus includes: an information input section for inputting information on an crimp contact terminal, an electric wire, an anvil, and the crimper and an input compression ratio of a core wire of the electric wire; and an estimation unit for calculating a total length of the bottom wall and the pair of crimp pieces after crimp in a cross section orthogonal to the core wire based on the information and the input compression ratio and estimating a cross-sectional shape of the bottom wall and the pair of crimp pieces after crimp based on the total length.
    Type: Application
    Filed: February 12, 2004
    Publication date: November 11, 2004
    Applicant: YAZAKI CORPORATION
    Inventors: Megumi Saito, Naoki Ito
  • Patent number: 6810704
    Abstract: In a press forming machine for pressing a slide plate, which has a movable mold thereon, by using a plurality of driving sources, a control unit is disclosed, in which when offset load is applied on the slide plate, molding can be performed while the slide plate is maintained at a desired position relative to a fixed mold. In the press forming machine, engaging parts corresponding to the driving sources are provided on the slide plate, and displacement measuring units for measuring a displacement of the slide plate are provided near the engaging parts.
    Type: Grant
    Filed: March 7, 2002
    Date of Patent: November 2, 2004
    Assignee: Institute of Technology Precision Electrical Discharge Work's
    Inventors: Shoji Futamura, Keizo Unno
  • Patent number: 6619088
    Abstract: A bottom dead center correction device for a servo press machine which can correct the bottom dead center with a high precision not achieved by a bottom dead center correction by a slide position detection device provided on a frame includes a bottom dead center sensor (11) and a temperature sensor (12) on a lower mold (10B) of a die (10). The bottom dead center of a set slide motion of slide (3) is corrected by the bottom dead center measurement value of bottom dead center detection sensor (11) and by the temperature drift of bottom dead center detection sensor (11) resulting from the temperature rise of die (10) due to molding and detected by temperature sensor (12). A bottom dead center correction of one micron unit not previously achieved becomes possible. The bottom dead center correction device also can be provided as one which corrects for the fluctuations in the bottom dead center resulting from deformations in all of the construction parts and the die of the servo press.
    Type: Grant
    Filed: October 16, 2000
    Date of Patent: September 16, 2003
    Assignee: Aida Engineering Co., Ltd.
    Inventors: Yasuhiko Oyamada, Kunihiro Suzuki, Youichi Kubota
  • Patent number: 6523384
    Abstract: An apparatus and method for monitoring the carry through state of a mechanical press is disclosed. Actual slide displacement curves under load conditions are continually generated for the press being monitored. Values of rebound height, rebound count, and rebound number for the press slide may then be determined and utilized as indicators of the carry through state of the press. Measured values of rebound height, rebound count, and rebound number can then be displayed and used as indicators that the energy of the slide should be increased to bring the press closer to a carry through state.
    Type: Grant
    Filed: October 4, 2000
    Date of Patent: February 25, 2003
    Assignee: The Minster Machine Company
    Inventor: Daniel A. Schoch
  • Publication number: 20030010077
    Abstract: Disclosed are a slide inclination correcting method and a slide inclination correcting apparatus in press machinery having a slide drive mechanism disposed in a top area of a press machine for driving a slide via a plurality of points to vertically move it up and down, thereby forming a work piece. According to the invention, the method and apparatus include the steps of, and means for, finding by measurement or computation for each of dies or die sets an eccentric load that is to develop in the slide in the process of forming a work piece to prepare a die based slide inclination correcting data for each of the dies or die sets; and on the basis of the die based slide inclination correcting data prepared, pre-imparting to the slide a compensatory amount of inclination which corresponds to a predicted amount of inclination caused the slide due to the eccentric load found.
    Type: Application
    Filed: September 6, 2002
    Publication date: January 16, 2003
    Applicant: Komatsu Ltd.
    Inventors: Yoshiro Mukai, Hiroaki Honma, Katsuhiro Takano
  • Patent number: 6354123
    Abstract: A method and apparatus is provided for automated control and positioning of a mandrel within a pipe during bending operations. Position detection is accomplished by means of a low frequency electromagnetic signal transmission from a coil placed in close proximity parallel to the pipe outer surface. This signal is detected by a pair of orthogonal receiving coils mounted on the mandrel in close proximity to the pipe inner surface. The phases of the received signals with respect to the transmitted signal and the ratio of the amplitudes of the two received signals is used to estimate the relative position of the transmitter and the receivers. Control of the mandrel along with transmission of reference phase information is accomplished via a high frequency direct sequence spread spectrum radio link between a computer console outside the pipe mounted on the bender and a computer unit mounted inside the pipe on the mandrel.
    Type: Grant
    Filed: January 12, 2000
    Date of Patent: March 12, 2002
    Assignee: CRC-Evans Pipeline International, Inc.
    Inventors: Shankar T. Rajagopalan, Sridhar Madala