Including Screw-actuated Tool Support Patents (Class 72/454)
  • Patent number: 9889483
    Abstract: A paintless vehicle dent repair tool for repairing dents, such as dents caused by hail damage, in the top of a vehicle. The repair tool includes an elongated, annular shaped, tool body. The tool body includes a concave, wedge-shaped end portion for engaging and removing glue from a dent and a hollow opposite end portion. The hollow opposite end portion is used for holding a removable spray bottle of alcohol. A spray of alcohol is used for helping release dried glue from a raised dent on a vehicle.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: February 13, 2018
    Inventor: William Allen
  • Publication number: 20150052966
    Abstract: A portable crimper tool is disclosed having a frame, a crimper anvil and a bolt adapted to engage the frame and connected to the crimper anvil for actuation of the crimper tool.
    Type: Application
    Filed: August 21, 2014
    Publication date: February 26, 2015
    Inventor: Dennis K. SMITH
  • Publication number: 20140298879
    Abstract: A crimping machine system including a set of crimping jaws placed in a circular array and defining a central axis; a flange structure configured to move in parallel with said central axis; a first power transmitting member equipped with inclined guide surfaces, placed between the jaws and the flange structure, and forcing the jaws to move radially towards the central axis; a circular structure configured to rotate around said central axis; and a second power transmitting member equipped with helical guide surfaces and placed between the circular structure and the flange structure, wherein while the circular structure rotates around the central axis, said power transmitting member is configured to force the flange structure to move in parallel with the central axis.
    Type: Application
    Filed: February 21, 2014
    Publication date: October 9, 2014
    Applicant: LILLBACKA POWERCO OY
    Inventors: Jukka JÄRVI, Sami HARRI
  • Patent number: 8820134
    Abstract: A panel bender (10) designed for making bends on sheet metal sheets (13) comprises a substantially C-shaped main structure (11) equipped with a fixed element (12) and a mobile element (14) designed to support and clamp in a preset position a sheet metal sheet (13) to be bent, and also comprises a substantially C-shaped blade holder structure (16) connected to the main structure (11) and mobile in space inside this by means of a series of vertical guides (15) at right angles to the plane of the sheet metal sheet (13) to be bent. The blade holder structure is equipped with an upper blade (26) and a lower blade (27) designed to enter into contact with the surface of the sheet metal sheet (13) to be bent clamped between the mobile and fixed elements (12, 14) of the main structure (11) and to deform the sheet metal sheet by means of a movement with a programmable trajectory.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: September 2, 2014
    Assignee: Finn-Power Italia S.R.L.
    Inventor: Pietro Cabianca
  • Patent number: 8689599
    Abstract: A system for repairing a pipe including a tool, a programmable logic controller and a patch. The tool includes a clamp base having an opening, a first jaw coupled to the clamp base with a first linkage, a second jaw coupled to the clamp base with a second linkage, an operating mechanism carried by the clamp base and operably coupled to the first and second jaws via one or more adjusting links and a junction box carried by the clamp base and operably connected to the controller, wherein the one or more adjusting links are coupled at a first end to either or both of the first and second jaws and at a second end to the operating mechanism, and wherein the first and second jaws are adapted to move, under force of the adjusting links. Methods of repairing pipes are disclosed.
    Type: Grant
    Filed: November 5, 2012
    Date of Patent: April 8, 2014
    Assignee: Timberline Tool, L.L.C.
    Inventor: Kenneth H. Green
  • Patent number: 8381565
    Abstract: A hand and mechanically activated rivet setting device uniquely and integrally designed to set multiple different types of rivets comprising tubular, semi-tubular and solid rivets made entirely or in part from aluminum, brass, steel and stainless steel having multiple different kinds of heads comprising truss, dome and flat rivet heads; in a work product consisting of pieces and components to be riveted together. The device has the means to set rivets from different positional locations within the device and provides the device operator the ability to completely control the rivet setting process, assuring precision rivet setting without damaging the pieces or components being riveted.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: February 26, 2013
    Inventor: Carl Alfred Zander
  • Patent number: 8201604
    Abstract: An apparatus for applying labels to products includes a label application station at which the labels are applied to a product and an application head movably mounted relative to a base for movement between a first operative loading position spaced from the label application station and a second operative application position at which the application head applies at least one label to a product positioned at the label application station. An electrically actuated solenoid is operatively connected to the application head to move the application head between the first and second operative positions.
    Type: Grant
    Filed: July 16, 2010
    Date of Patent: June 19, 2012
    Assignee: Illinois Tool Works Inc.
    Inventors: Timothy J. Green, Joseph M. Fisher, William B. Elliott, Joseph J. Alfieri, Eric K. Spina
  • Publication number: 20110214268
    Abstract: A hand and mechanically activated rivet setting device uniquely and integrally designed to set multiple different types of rivets comprising tubular, semi-tubular and solid rivets made entirely or in part from aluminum, brass, steel and stainless steel having multiple different kinds of heads comprising truss, dome and flat rivet heads; in a work product consisting of pieces and components to be riveted together. The device has the means to set rivets from different positional locations within the device and provides the device operator the ability to completely control the rivet setting process, assuring precision rivet setting without damaging the pieces or components being riveted.
    Type: Application
    Filed: February 28, 2011
    Publication date: September 8, 2011
    Inventor: Carl Alfred Zander
  • Patent number: 8006538
    Abstract: A control device, for a servo die cushion, by which the speed of a die cushion is prevented from largely deviating from the speed of a slide, whereby the press force between the slide and the die cushion is not significantly reduced. The control device includes a slide speed detector for detecting the speed of the slide, a die cushion speed detector for detecting the speed of the die cushion, and a die cushion speed commanding part for controlling the speed of the die cushion. When a tentative speed command of the die cushion is largely deviated from the detected slide speed, the command of the die cushion is corrected such that the absolute value thereof does not exceed the value calculated by adding the absolute value of the detected slide speed to a positive constant.
    Type: Grant
    Filed: September 4, 2007
    Date of Patent: August 30, 2011
    Assignees: Fanuc Ltd, Komatsu Ltd.
    Inventors: Yasusuke Iwashita, Tadashi Okita, Hiroyuki Kawamura, Satoshi Ikai
  • Publication number: 20110107806
    Abstract: A portable handheld device for introducing an external profile into a longitudinal workpiece by noncutting shaping includes a locking element and a profiling tool having a pitchless profile disposed opposite the locking element and disposable at an adjustable angle as a function of a desired lead angle of the external profile within a force transmission plane, wherein the workpiece is disposable and removable between the profiling tool and the locking element, and wherein the profile tool and the locking element are configured to execute a feed movement relative to one another and to be adjustable to a neutral position.
    Type: Application
    Filed: March 3, 2009
    Publication date: May 12, 2011
    Applicant: GOTTFRIED WILHELM LEIBNIZ UNIVERSITAET HANNOVER
    Inventors: Bernd-Arno Behrens, Hagen Schmidt, Philip Silberkuhl, Dietmar Schnier
  • Patent number: 7905126
    Abstract: A die-cushion controlling device includes a position-command-signal outputting section for outputting a position command signal of a die-cushion pad; a position detecting section for detecting a position of the die-cushion pad; a position comparing section for outputting a position deviation signal corresponding to a deviation between a target position value based on the position command signal and a position detection value based on a position detection signal; a position controlling section for outputting a position-speed command signal based on the position deviation signal; a speed controlling section for outputting a motor-current command signal based on the position-speed command signal; a servo amplifier for generating a current corresponding to the motor-current command signal; and an escape-position-command-signal outputting section for outputting a position command signal for commanding the die-cushion pad to escape from a bottom dead center position based on a press signal outputted when a slide ha
    Type: Grant
    Filed: February 26, 2007
    Date of Patent: March 15, 2011
    Assignee: Komatsu Industries Corp.
    Inventor: Yuichi Suzuki
  • Patent number: 7895877
    Abstract: A gun barrel stamping tool includes a die ram having a first U-shaped gun barrel fastener, a die container having a second U-shaped gun barrel fastener, and at least one die ram to die container fastener. The die ram and the die container each include opposing longer sidewalls and an elongate aperture located medially within each longer sidewall, the fastener being received by the elongate aperture. The die ram and die container combine to form an interior space for receiving a punch die. A circular aperture located medially within the shorter sidewall of the die container receives a punch die fastener for securing the punch die against the end wall of the die ram. The die container may include an adjustment mechanism for widening the interior space of the die container. The U-shaped gun barrel fasteners are located on opposing ends of the die ram and die container.
    Type: Grant
    Filed: April 10, 2009
    Date of Patent: March 1, 2011
    Inventor: Carl E. Moreland
  • Patent number: 7856862
    Abstract: The invention relates to a tool, suitable for body shops for correcting damaged vehicle body sheets, but also suitable for saving people trapped in a damaged vehicle and also for other applications that require opposite codirectional forces of high intensity with a rectilinear movement of a movable element, which is practical and independent from external energy sources. The tool (1) uses, as source of rotational movement, a common electric screwer (2) connected in a releasable way within the box (70) of said tool, with its driven shaft connected to a screw mechanism which supports in translational movement a movable element (10). The box of the tool has a front face (8) and a rear face (23), arranged at the lend of the side faces (29, 29?) and the lower face kept together by the four screw pulling elements (28, 28?) tightened by respective four nuts (25). On the front face (8) a fixed element (9) is connected, in which telescopically slides the movable element (17) operated by the screwer (2).
    Type: Grant
    Filed: November 15, 2005
    Date of Patent: December 28, 2010
    Inventor: Dino Sodini
  • Patent number: 7845205
    Abstract: A die cushion controller, for driving a die cushion, disposed in opposition to a slide of a press machine, by controlling a servo motor, including: a pressure command portion which prepares a pressure command value for exerting a predetermined pressure to a press material disposed between the slide and the die cushion; a pressure detecting portion which detects an actual pressure exerted on the press material; a speed correction value preparing portion which prepares a speed correction value by multiplying a differential value of the pressure command value prepared by the pressure command portion by a coefficient; and a first speed command portion which prepares a speed command value to be instructed to the servo motor based on the pressure command value prepared by the pressure command portion, the actual pressure detected by the pressure detecting portion, and the speed correction value prepared by the speed correction value preparing portion.
    Type: Grant
    Filed: October 17, 2006
    Date of Patent: December 7, 2010
    Assignee: Fanuc Ltd
    Inventors: Yasusuke Iwashita, Tadashi Okita, Hiroyuki Kawamura, Satoshi Ikai
  • Patent number: 7752881
    Abstract: Press driving modules are provided to permit a standardized press design. The presses of a press line are equipped with always identical press driving modules, and the pressing force of the presses is varied only by the adaptation of the number of press driving modules. The press driving modules each contain two driving devices, respectively, that interact parallel or in series and have different characteristic curves. In particular, they have different maximal traveling speeds and different maximal forces. They can also have a different design with respect to their positioning capability and path resolution. This concept permits not only a standardization of presses of different performance classes within a press line but, beyond that, the largely free definition of characteristic path-time curves of the slides, and thereby finally also a freer design of workpieces, particularly of vehicle body parts.
    Type: Grant
    Filed: August 2, 2006
    Date of Patent: July 13, 2010
    Assignee: Schuler Pressen GmbH & Co. KG
    Inventors: Hans Hofele, Andreas Lauke
  • Patent number: 7748308
    Abstract: An improved method and apparatus are provided for constructing and operating a linear actuator, and equipment incorporating a linear actuator, by operatively connecting a pressure biasing pneumatic arrangement between the driving member and the driven member of a mechanical linear actuator for applying a unidirectional biasing force between the driving and driven members, along an axis of motion, regardless of the location or movement of the driving and driven elements with respect to one another along the axis of motion. The pneumatic biasing arrangement is also configured, connected and operated to reduce the force which must be exerted by the driving and driven members in extending and retracting the linear actuator. The pneumatic biasing arrangement may further be configured for preferentially aiding extension or retraction of the actuator.
    Type: Grant
    Filed: September 25, 2006
    Date of Patent: July 6, 2010
    Assignee: Unico, Inc.
    Inventors: Robb G. Anderson, James P. McCrickard, Thomas L. Beck
  • Patent number: 7739894
    Abstract: Provided is a die cushion controller that controls an ascending/descending speed of a die cushion based on a predetermined pressure pattern 56. The pressure pattern 56 has a low pressure target value PL which is first followed by an increased cushion pressure, a high pressure target value PH corresponding to a requisite cushion pressure for retaining a workpiece, and a complementary target value PC which is followed by the cushion pressure at a substantially linear increase rate for a predetermined period of time T2 until the cushion pressure exceeds the low pressure target value PL and reaches the high pressure target value PH. The cushion pressure overshooting the low pressure target value PL continues to follow the complementary target value PC, so that an overshooting amount occurring at a time point at which the cushion pressure reaches the high pressure target value PH can be reduced. As a result, pressure variation in the cushion pressure can be suppressed.
    Type: Grant
    Filed: March 13, 2006
    Date of Patent: June 22, 2010
    Assignee: Komatsu Ltd.
    Inventor: Yuichi Suzuki
  • Patent number: 7685860
    Abstract: A control device for a press machine, by which one of the slide and the die cushion is suitably controlled, when a malfunction occurs in the other, such that the force between the slide and the die cushion does not excessively increase. The control device includes a slide control part for controlling the motion of the slide and a die cushion control part for controlling the motion of the die cushion. A first transmitter transmits an abnormal signal from the die cushion control part to the slide control part when a first detector detects a malfunction of the die cushion. The slide control part is configured to move the slide, when receiving the abnormal signal, such that the slide is away from the position of the die cushion at the time of receiving the abnormal signal by a certain distance and, to stop the slide.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: March 30, 2010
    Assignee: Fanuc Ltd
    Inventors: Yasusuke Iwashita, Tadashi Okita, Hiroyuki Kawamura, Satoshi Ikai
  • Patent number: 7631528
    Abstract: A control apparatus for controlling a die cushion mechanism including a servo-motor as a drive source and producing a force adapted to be applied outside. The control apparatus includes a force commanding section for commanding a force to be produced by the die cushion mechanism; a force detecting section for detecting a force produced by the die cushion mechanism; a force controlling section for executing a force control on the servo-motor, based on a force command value commanded by the force commanding section and a force detected value detected by the force detecting section; and an abnormality preventing section for preventing, in association with a control state of the servo-motor, the die cushion mechanism from producing an abnormal force.
    Type: Grant
    Filed: November 3, 2005
    Date of Patent: December 15, 2009
    Assignees: Fanuc Ltd, Komatsu Ltd, Komatsu Industries Corporation
    Inventors: Yasusuke Iwashita, Tadashi Okita, Hiroyuki Kawamura, Satoshi Ikai
  • Patent number: 7574891
    Abstract: A pressing apparatus using a motor, in which a driving device for fast feed, which lowers a upper die to a position immediately before pressing, and a motor for pressing, which performs a pressing operation, are used to cause the driving device for fast feed and the motor for pressing to operate cooperatively, and only one position detector, which detects a present position of a slider, is provided for a set of the driving device for fast feed and the motor for pressing. A lock device is provided so as to lock the slider and the screw shaft while the motor for pressing is operating for pressing a work piece.
    Type: Grant
    Filed: August 30, 2004
    Date of Patent: August 18, 2009
    Assignee: Hoden Seimitsu Kako Kenkyusho Co., Ltd.
    Inventors: Shoji Futamura, Hiromitsu Kaneko
  • Publication number: 20090126434
    Abstract: A press machine in which the service life of a ball thread mechanism is extended. The press machine includes a die 2, a punch 4, a press drive mechanism 6, a height position changing mechanism 21, and a die height position control device 32. The press drive mechanism 6 is configured to move the punch up and down. The press drive mechanism includes at least one ball thread mechanism 10 in which a nut 13 is threaded via balls 12 onto a threaded shaft 11. A rotational drive source 14 is provided to rotate one of the threaded shaft 11 and the nut 13. The position changing mechanism 32 is configured to change the height of the die 2. The die position control device 32 controls the height of the die 2 via the position changing mechanism 21 so that the position varies where the balls 12 come into contact with the inner face of the thread grooves 11a of the threaded shaft 11 during pressing.
    Type: Application
    Filed: October 31, 2008
    Publication date: May 21, 2009
    Applicant: Murata Machinery, Ltd.
    Inventor: Takayuki KAWASAKI
  • Patent number: 7506530
    Abstract: A device for controlling a die cushion mechanism including a servo-motor as a drive source and producing a force adapted to be applied to a slide in a press machine. The device includes a section for commanding a force to be produced by the die cushion mechanism; a section for detecting a force produced by the die cushion mechanism and applied to the slide; a section for detecting a moving speed of the slide; and a section for executing a force control on the servo-motor. The force controlling section executes force controls in mutually different modes on the servo-motor, through mutually different control loops, one mode being provided for an initial stage defined from an instant when the die cushion mechanism starts producing the force to be applied to the slide until a predetermined subsequent instant, and another mode being provided for a succeeding stage defined after the predetermined subsequent instant, by using at least a slide-speed detected value detected by the slide-speed detecting section.
    Type: Grant
    Filed: July 3, 2006
    Date of Patent: March 24, 2009
    Assignee: Fanuc Ltd
    Inventors: Yasusuke Iwashita, Tadashi Okita, Hiroyuki Kawamura, Satoshi Ikai
  • Patent number: 7506531
    Abstract: A tool is provided for forming a dimple on the edge of a metal sheet to facilitate projection welding of the sheet to an adjacent metal sheet. A reversible drill motor has a housing and chuck. A mounting bracket clamps onto the housing and a base is attached to the mounting bracket. A frame is attached to the base and has spaced apart arms. A first dimple forming die is mounted on one of the arms and a second dimple forming die is slidably mounted on the other of the arms. A driveshaft has a threaded end engaged in a threaded aperture of the second dimple forming die and a drive end captured in the chuck. Rotation of the driveshaft in one direction advances the second dimple forming die toward the first dimple forming to form a dimple in a sheet edge interposed between the dies.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: March 24, 2009
    Assignee: GM Global Technology Operations, Inc.
    Inventors: Joseph M. Lendway, IV, Alexander D. Khakhalev, Don Reams
  • Patent number: 7461530
    Abstract: A control apparatus for controlling a die cushion mechanism including a servo-motor as a drive source and producing a force adapted to be applied to a slide in a press machine. The control apparatus includes a force commanding section for commanding a force to be produced by the die cushion mechanism; a force detecting section for detecting the force produced by the die cushion mechanism; a motor-speed detecting section for detecting an operating speed of the servo-motor; a slide-speed detecting section for detecting a moving speed of the slide; and a force controlling section for executing a force control on the servo-motor, based on a force command value commanded by the force commanding section, a force detected value detected by the force detecting section, a motor-speed detected value detected by the motor-speed detecting section and a slide-speed detected value detected by the slide-speed detecting section.
    Type: Grant
    Filed: November 3, 2005
    Date of Patent: December 9, 2008
    Assignee: Fanuc Ltd
    Inventors: Yasusuke Iwashita, Tadashi Okita, Hiroyuki Kawamura, Satoshi Ikai
  • Patent number: 7421878
    Abstract: A control device of a die cushion mechanism, by which a force between a slide and a die cushion may follow a commanded value even in the rapid acceleration or deceleration of the slide and, moreover, a problem such as vibration of the mechanism may be prevented in the gradual acceleration or deceleration of the slide. The control device includes a slide position detecting part, such as a position sensor, for detecting the position of the slide and a correcting part for correcting a current commanded value using an acceleration of the slide, obtained by second-order differentiation of the position of the slide detected by the position sensor.
    Type: Grant
    Filed: June 22, 2006
    Date of Patent: September 9, 2008
    Assignee: Fanuc Ltd
    Inventors: Yasusuke Iwashita, Tadashi Okita, Hiroyuki Kawamura, Satoshi Ikai
  • Patent number: 7415862
    Abstract: In a press device for pressing a slider with a plurality of motors as driving sources, pressing is performed while a slider is kept horizontal even if an eccentric load is applied.
    Type: Grant
    Filed: August 26, 2005
    Date of Patent: August 26, 2008
    Assignee: Hoden Semitsu Kako Kenkyusho Co., Ltd.
    Inventors: Shoji Futamura, Keizo Ohtani
  • Patent number: 7401492
    Abstract: A control device (10) for a die cushion mechanism that produces a force for a slide (24) in a press machine, comprising slide velocity command-forming means (61) for forming a velocity command for the slide (24), die cushion velocity command-forming means (62) for forming a velocity command for said die cushion (20), and velocity relation calculation means (65) for calculating a velocity relation between the velocity of the slide and the velocity of the die cushion based on a rate of increase (dF) in the force produced between the slide and the die cushion immediately after the collision of the slide with the die cushion. The cushion velocity command-forming means forms the velocity command for the die cushion based upon the slide velocity command formed by the slide velocity command-forming means and upon the velocity relation calculated by the velocity relation-calculation means. This makes it possible to form an optimum velocity command for the slide and/or the die cushion.
    Type: Grant
    Filed: September 6, 2006
    Date of Patent: July 22, 2008
    Assignee: Fanuc Ltd
    Inventors: Yasusuke Iwashita, Tadashi Okita, Hiroyuki Kawamura, Satoshi Ikai
  • Patent number: 7398667
    Abstract: A die cushion drive system provided with a servo motor serving as a source of drive power for a die cushion of a press machine and a power circuit with a regeneration function which regenerates energy from the servo motor and returns it to an AC power supply, whereby it is possible to power the die cushion drive system by a servo motor and return the regenerated energy of this servo motor to the power source so as to save on energy.
    Type: Grant
    Filed: November 21, 2005
    Date of Patent: July 15, 2008
    Assignee: Fanuc Ltd
    Inventors: Shunsuke Matsubara, Shinichi Horikoshi, Takashi Okamoto, Yuuichi Yamada
  • Patent number: 7392684
    Abstract: A control system, for a press machine including a plurality of die cushions, by which force control and position control may be suitably switched from one to another in each control device for each of the die cushions. The control system includes a plurality of control devices for controlling a servomotor of each die cushion and a switching signal generating part capable of collecting the judgment result of each control device. The switching signal generating part transmits a switching signal to each control device, in order to switch the control mode of each control device.
    Type: Grant
    Filed: July 10, 2006
    Date of Patent: July 1, 2008
    Assignee: Fanuc Ltd.
    Inventors: Yasusuke Iwashita, Tadashi Okita, Hiroyuki Kawamura, Satoshi Ikai
  • Patent number: 7360391
    Abstract: A control device, for a servo die cushion, for precisely performing force control without using a force detector. The control device includes a slide position detecting part for detecting the position of the slide, a storing part for storing information representing a relation between the position of the slide and the speed of the die cushion, the information being predetermined such that the force between the slide and the die cushion is set to a desired force and a die cushion speed commanding part for generating a speed command of the die cushion based on the information and the position of the slide detected by the slide position detecting part.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: April 22, 2008
    Assignee: Fanuc Ltd
    Inventors: Yasusuke Iwashita, Tadashi Okita, Hiroyuki Kawamura, Satoshi Ikai
  • 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: 7331208
    Abstract: A die cushion controller uses position control to position die cushion members for placement of a metal sheet. A pressing process starts and the upper die is lowered. When a position detector detects a position at which the upper die touches the sheet metal, the die cushion controller switches over from position control to pressure control and applies a preset pressure to the sheet metal. When the position detector detects that the upper die has risen to a preset position, the die cushion controller clears the positional deviation accumulated in position control to zero, then moves the die cushion members to preset positions and holds them there.
    Type: Grant
    Filed: October 27, 2005
    Date of Patent: February 19, 2008
    Assignee: Fanuc Ltd
    Inventors: Kentaro Fujibayashi, Tetsuo Hishikawa, Keisuke Tsujikawa, Noboru Hirose
  • Patent number: 7293447
    Abstract: A control device for a die cushion mechanism, for carrying out force control with high accuracy and at a high speed. The control device for controlling the force generated by the die cushion mechanism utilizes a press working cycle which is repeatedly carried out. A correcting part of the control device corrects each deviation in one working cycle based on a time-series of deviation data in the just before press working cycle. By repeating this operation, the deviation between the detected value and the commanded value may be converged toward zero. Therefore, the deviation may become smaller than that of the conventional feedback control, whereby it is possible to respond to a change in the commanded value in a short time.
    Type: Grant
    Filed: November 21, 2005
    Date of Patent: November 13, 2007
    Assignee: Fanuc Ltd
    Inventors: Yasusuke Iwashita, Tadashi Okita, Yukio Toyozawa, Naoto Sonoda
  • Patent number: 7293500
    Abstract: A pressing apparatus using a motor, in which a fast feed drive lowers an upper die to a position immediately before pressing, and a motor for pressing performs a pressing operation. The fast feed drive and the motor for pressing operate cooperatively, and only one position detector, which detects a present position of a slider, is provided for a set of the fast feed drive and the motor for pressing.
    Type: Grant
    Filed: July 8, 2004
    Date of Patent: November 13, 2007
    Assignee: Hoden Seimitsu Kako Kenkyusho Co., Ltd.
    Inventors: Shoji Futamura, Takeo Matsumoto
  • Patent number: 7284407
    Abstract: A reciprocating drive mechanism for converting motor rotation into linear motions to produce a reciprocating drive force, and a press machine using the mechanism. The rotation of a first motor (20A) out of two motors (20A) and (20B) is converted into a high-speed low-torque rotational output and transmitted to a ball screw mechanism (50) by a first power transmission mechanism (30). The rotation of the second motor (20B) is converted into a low-speed high-torque rotational output and transmitted to the ball screw mechanism (50) by a second power transmission mechanism (40). The ball screw mechanism (50) is made of a feed screw (52) supported in a screw hole of a nut member (51) so as to be capable of screw-fed rotation. The feed screw (52) and the nut member (51) are coupled with the first power transmission mechanism (30) and the second power transmission mechanism (40), respectively.
    Type: Grant
    Filed: December 1, 2003
    Date of Patent: October 23, 2007
    Assignee: Toyokoki Co., Ltd.
    Inventor: Wataru Imaeda
  • Patent number: 7189195
    Abstract: A corrugated sheet forming unit used in a corrugated sheet material making machine for processing a metal sheet material into a corrugated sheet is disclosed to include a table vertically movable to fit the elevation of the conveyer and receiving unit of the machine and to carry first shape forming roller sets or second shape forming roller sets into the working position for processing the supplied sheet material into a corrugated sheet of a first pattern or a corrugated sheet of a second pattern selectively.
    Type: Grant
    Filed: June 22, 2005
    Date of Patent: March 13, 2007
    Inventor: Sen-Jung Chuang
  • Patent number: 7181951
    Abstract: In a system and method for removing a dent from an automotive vehicle body surface, first and second suction elements are each formed of a flexible disc, a support disc, and a pull stud attached to the support disc. A releasable lever engagement member is provided at an end of the pull stud. Each flexible disc has a vehicle body facing surface which is continuous without air exits. The first and second suction elements are placed on the vehicle surface, with at least one of the suction elements at the dent. A lever bar is inserted through the releasable lever engagement members at ends of the respective pull studs where it is loosely retained.
    Type: Grant
    Filed: July 25, 2005
    Date of Patent: February 27, 2007
    Inventor: Michael J. Schmidt
  • Patent number: 7143617
    Abstract: A press forming machines includes displacement measuring means for measuring a displacement between a slide plate and a reference plate. Control means measures a positional displacement of each of the driving sources by using the displacement measuring means in each of a plurality of operating steps during the molding operation, detects a desired displacement position of the entire slide plate, extracts control data including a correction amount to maintain the entire slide plate at the desired displacement position, the correction amount corresponding to a change in load on each of the driving sources, stores the control data in the memory, supplies the control data to the driving sources, and separately drives the driving sources. Since an actual molding operation can be performed using control data generated in a trial molding operation, the cycle time of the actual molding can be shortened.
    Type: Grant
    Filed: February 13, 2003
    Date of Patent: December 5, 2006
    Assignee: Institute of Technology Precision Electrical Discharge Work's
    Inventors: Shoji Futamura, Keizo Unno
  • Patent number: 7089641
    Abstract: An adhesively mounted single-sided clamp-like device for producing a compressive force or tensile force includes a body, a plunger movably connected with the body, and a double-sided stretch releasing adhesive attached to at least one of the body and the plunger. The body and/or plunger can be firmly adhesively bonded to a surface or object and later cleanly removed from the surface or plunger without damaging the surface and without leaving adhesive residue by stretching the adhesive.
    Type: Grant
    Filed: November 7, 2003
    Date of Patent: August 15, 2006
    Assignee: 3M Innovative Properties Company
    Inventor: Michael D. Hamerski
  • Patent number: 7082809
    Abstract: A drive arrangement for a hemming press uses a ballscrew drive arrangement with a longitudinal axis. A first gimbal connected to the externally threaded screw shaft connects the externally threaded screw shaft to a stationary member. The platen is movable with respect to the stationary member. A second gimbal connected to the internally threaded nut connects the internally threaded nut to the platen. The gimbals accommodate transaxial displacement of the screw drive arrangement. A motor applies torque to the ballscrew drive arrangement. Transaxial loading of the screw drive arrangement is accommodated by the first and/or second gimbals. Severe forces resulting from crashes are accommodated by force limiting arrangements and resilient devices.
    Type: Grant
    Filed: June 12, 2003
    Date of Patent: August 1, 2006
    Assignee: Beaver Aerospace & Defense, Inc.
    Inventor: Mircea G. Balasu
  • Patent number: 7055360
    Abstract: A method of applying a tensile or compressive force to a selected location of a work piece or surface without damaging the work piece or the surface and without leaving adhesive residue thereon includes providing a device including a body member and a force applying member movably connected with the body member, attaching the body member and/or the force applying member to the work piece and/or surface using a double-sided stretch releasing adhesive such that one end of the force applying member is adjacent the selected location, and moving the force applying member toward the work piece or surface to generate a compressive force, or moving the force applying member away from the work piece or surface to generate a tensile force.
    Type: Grant
    Filed: December 31, 2003
    Date of Patent: June 6, 2006
    Assignee: 3M Innovative Properties Company
    Inventors: Michael D. Hamerski, James L. Bries, James F. Pitzen, Ronald C. Johansson
  • Patent number: 6964186
    Abstract: The invention relates to a device for deformation, in particular for restoring deformed bodywork regions, having a pulling device to which an adhesive bolt can be fastened, the adhesive bolt being fastenable by adhesion to the bodywork region to be deformed.
    Type: Grant
    Filed: November 9, 2000
    Date of Patent: November 15, 2005
    Assignee: MV Marketing und Vertriebs-GmbH & Co. KG
    Inventors: Martin Strasser, Michael Gabriel
  • Patent number: 6938531
    Abstract: A reciprocal-movement power tool includes a movable blade reciprocally movably provided on a main body. A receiving plate that supports an angle iron to be cut is supported on the main body at a position in front of the movable blade. The movable blade is fixed on a front tip of a rod-shaped shuttle screw. The shuttle screw moves back and forth in the axial direction within a tubular screw shaft. The screw shaft is carved with a female screw portion and is rotated through a joint spindle that is deceleratingly rotated upon rotation of the motor through a deceleration means. The shuttle screw has a male screw portion that is threadingly engageable with the female screw portion.
    Type: Grant
    Filed: February 2, 2001
    Date of Patent: September 6, 2005
    Assignee: Hitachi Koki Co., Ltd.
    Inventors: Chikai Yoshimizu, Masao Kikumoto, Takahiko Shimada
  • Patent number: 6907766
    Abstract: The present invention relates to the field of tools used to modify the magazines of firearms. A die and anvil are configured to engage and form the lips of magazines, like that of the M16A4 and M4A1, to correct damage and enhance the feed angle of rounds to improve feeding and accuracy. The die and anvil are provided with a means to align them during the forming process to minimize the attempts necessary to complete the forming process. The anvil is configured to enter from the base of a magazine and to engage the side walls with sufficient tolerance to allow for free movement, but tight enough to detect deformation in the side walls. The anvil can be used as a rigid surface to correct deformation of the side walls with a non-marring tool. The preferred embodiment provides sufficient force to form the feed lips of the magazine without the need for additional tools.
    Type: Grant
    Filed: April 8, 2003
    Date of Patent: June 21, 2005
    Inventors: Sandy Alexander Garrett, Jr., Robert Hudson Garrett
  • Patent number: 6901784
    Abstract: A countersinking tool for countersinking openings into a hollow metal door frame in order to insert wall anchors through the openings to lie flush with the door frame. The countersinking tool has two parts. The nut is a base with a threaded opening extending lengthwise through its center. The bolt has a hexagonal-sided top that tapers to a threaded screw insertable into the threaded opening of the nut.
    Type: Grant
    Filed: February 2, 2004
    Date of Patent: June 7, 2005
    Inventor: Mark Justice
  • Patent number: 6871586
    Abstract: A slide drive apparatus and a slide drive method for a pressing machine capable of enhancing positioning precision at the time of adjustment of die height, and responding to pressing work at high stroke per minute. For this purpose, the drive apparatus includes a slide (4), a servo motor (21) for controlling slide motion, a mechanical power transmission mechanism (3, 5, 6) for converting rotational power of the servo motor for controlling slide motion into reciprocating motion of the slide, and a servo motor (31) for adjusting die height, which performs die height adjustment of the slide by a position control.
    Type: Grant
    Filed: September 23, 2002
    Date of Patent: March 29, 2005
    Assignees: Komatsu Ltd., Komatsu Industries Corp.
    Inventor: Kenichi Teraoka
  • Patent number: 6862790
    Abstract: A dimpling device is provided with a slide rod, a first workpiece holder, and a second workpiece holder. The slide rod is slidably fitted around a center pin running through rivet holes. The first workpiece holder is slidably and detachably fitted around the slide rod. The second workpiece holder is detachably fixed to the center pin. The first and second workpiece holders have holding surfaces with curvatures that have been preselected to conform to the curvatures of the surfaces of workpieces. The slide rod has a punch and the second workpiece holder has a die. When the workpieces are held together by the holding surfaces, a nut is rotated to move the punch into a cooperative relationship with the die, thereby dimpling the surroundings of the rivet holes.
    Type: Grant
    Filed: August 2, 2002
    Date of Patent: March 8, 2005
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventor: Hiroshi Kato
  • Publication number: 20040231397
    Abstract: The upper platen of a press is driven by a ballscrew that is rotated by an electric motor. The ballscrew is suspended from the crown of the press, and the force on the ballscrew shaft when the upper platen is driven into the workpiece causes the crown to flex upward. The flexure of the crown is sensed by a position transducer mounted on a cantilever support. The position transducer generates a signal that can be used to determine the tonnage force developed by the press.
    Type: Application
    Filed: May 23, 2003
    Publication date: November 25, 2004
    Inventors: William M. Faitel, Douglas J. Schrandt
  • 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: RE38562
    Abstract: A press has a press ram actuated by a drive apparatus and a dosing system to be actuated by the drive apparatus for lubricating at least the drive apparatus.
    Type: Grant
    Filed: June 3, 2003
    Date of Patent: August 10, 2004
    Assignee: Gebr. Schmidt Fabrik für Feinmechanik
    Inventors: Hartmut Babiel, Thomas Elsässer, Erich Weisser