Servo-actuated Patents (Class 901/32)
  • Patent number: 11633861
    Abstract: Systems, methods, and associated components for robotic manipulation of physical objects. The physical objects include three-dimensional gripping features configured to be detected by an optics system and gripped by an end-effector of a robotic arm with sufficient gripping force to move the physical objects against the force of gravity. Sets of the physical objects can have different sizes and shapes and, in some examples, include identically constructed three-dimensional gripping features.
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: April 25, 2023
    Assignee: CommScope Technologies LLC
    Inventors: Thierry Mike Declerck, Christiaan Radelet, Rudy Musschebroeck, Peter Merlo, Jozef Christiaan Mathieu Versleegers, Jan Willem Rietveld, Michael Maris
  • Publication number: 20150123416
    Abstract: An inexpensive and compact robot hand and a robot having the robot hand, wherein the robot hand is configured to rotate a cylindrical object gripped by the robot hand and does not negatively affect a cable, etc., connected to the robot hand. N number of fingers are moved by a first drive part so that a circumcircle of a N-sided polygon constituted by the fingers is arranged in a concentric pattern about the center axis of the object. Each first roller is rotatable about an axis parallel to the center axis of the object, and is configured to contact the inner peripheral portion of the object by movement of the finger relative to a hand base. By rotationally driving at least one first roller while a radially outward force is applied to the object, the object may be rotated relative to the hand base.
    Type: Application
    Filed: October 31, 2014
    Publication date: May 7, 2015
    Inventor: Ryoji Kitamura
  • Patent number: 8998561
    Abstract: According to one embodiment, a gripping device grips a rim of a workpiece by opening and closing gripping plates. The device includes a gripping unit, a hoisting and lowering unit and a motion control unit. The gripping unit includes a first and a second gripping plate. The first gripping plate has a first gripper to contact the rim. The second gripping plate has a second gripper to contact the rim. At least one of the first and second gripping plates is moved and the first and second gripper are spaced from each other. The hoisting and lowering unit is configured to hoist and lower the gripping unit. The motion control unit is configured to control open/close operations and hoisting and lowering operations. The motion control unit mechanically controls first first hoisting and lowering operations, controls second the open/close operations, and controls third second hoisting and lowering operations.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: April 7, 2015
    Assignee: Shibaura Mechatronics Corporation
    Inventor: Masaaki Furuya
  • Patent number: 8979151
    Abstract: A robot hand (10) comprises an outside section that is not adapted for entry into a high-temperature area and an entry section adapted for entering the high-temperature area includes a frame (15) extending from the base unit and covering intermediate portions of the shafts; a distal end support (30) provided in the frame and adapted to support near distal end portions of the shafts; and holding units (13, 14) each attached to corresponding each of the shafts for holding a workpiece. The proximal end support is adapted to support the shafts via a bearing. The distal end support includes support holes larger than the outer diameters of the shafts such that the shafts are inserted into the support holes, respectively.
    Type: Grant
    Filed: November 5, 2013
    Date of Patent: March 17, 2015
    Assignee: Fanuc Corporation
    Inventor: Hiroshi Mukou
  • Patent number: 8970089
    Abstract: A drive device includes a movable member, plural piezoelectric motors that cause the movable member to move in a predetermined direction, a drive circuit that drives the plural piezoelectric motors, and plural relays that electrically connect or disconnect at least one of the plural piezoelectric motors to or from the drive circuit.
    Type: Grant
    Filed: December 4, 2012
    Date of Patent: March 3, 2015
    Assignee: Seiko Epson Corporation
    Inventor: Osamu Urano
  • Patent number: 8910984
    Abstract: An object is to provide a robot hand and a robot that are compact and lightweight and can reliably hold various types of workpieces. To achieve this object, the robot hand and the robot include: a plurality of joint portions that rotates about respective rotation axes parallel with each other; a plurality of links that is connected via each of the joint portions in sequence from a distal end; a linking member that links rotations of the joint portions adjacent to each other; and a single drive source that drives only the joint portion at a proximal end to rotate the joint portion.
    Type: Grant
    Filed: January 8, 2014
    Date of Patent: December 16, 2014
    Assignee: Kabushiki Kaisha Yaskawa Denki
    Inventor: Hiromitsu Akae
  • Publication number: 20140232124
    Abstract: The robot hand includes a frame and finger units which are provided on the frame and grasp an object to be grasped. The finger units include a Scott Russell mechanism, a first parallel link mechanism, and a second parallel link mechanism.
    Type: Application
    Filed: May 1, 2014
    Publication date: August 21, 2014
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Yoichiro DAN, Go YAMAGUCHI
  • Patent number: 8789568
    Abstract: Machines for manufacturing photovoltaic modules and methods for manufacturing photovoltaic modules can include tape handling components.
    Type: Grant
    Filed: August 5, 2011
    Date of Patent: July 29, 2014
    Assignee: First Solar, Inc.
    Inventor: Richard S. Malik, Jr.
  • Patent number: 8766786
    Abstract: A user interface comprising a display arranged to display visual content and a tactile surface arranged to convey a tactile representation, wherein said tactile representation is based on said visual content. This has the advantage of enabling a user to perceive content being displayed to him with less cognitive effort.
    Type: Grant
    Filed: February 4, 2008
    Date of Patent: July 1, 2014
    Assignee: Nokia Corporation
    Inventor: Zoran Radivojevic
  • Publication number: 20140156066
    Abstract: When a gripping instruction is issued, a position feedback control is performed so that an actuator of an electric hand is driven and a finger portion is moved toward a predetermined position target value. When the finger portion comes into contact with a target, the contact is determined by a force sensor. Then, the position feedback control is switched to a force feedback control, and the actuator is driven so that a force detection value obtained by the force sensor matches a predetermined force target value, so that the target may be gripped by an accurate gripping force.
    Type: Application
    Filed: November 27, 2013
    Publication date: June 5, 2014
    Applicant: FANUC CORPORATION
    Inventor: Tesuro SAKANO
  • Publication number: 20140148951
    Abstract: A manipulator device has an arm portion and a hand portion The hand portion includes one or more finger portions that manipulate a target object. Each finger portion includes a slip sensor and multiple contact sensors, with at least one contact sensor at a position proximate to the slip sensor and at least another contact sensor at a position remote from the slip sensor. When the contact sensors at the positions remote from the slip sensor detect contact of the target object and the contact sensors arranged at the positions proximate to the slip sensors do not detect contact, a position of the finger portion is moved by a distance corresponding to the distance between the contact sensors detecting contact of the target object and the contact sensors arranged at the positions proximate to the slip such that a detecting position of the slip sensor is coincident with a position of the target object.
    Type: Application
    Filed: April 18, 2012
    Publication date: May 29, 2014
    Inventor: Makoto Saen
  • Patent number: 8725296
    Abstract: There is provided a gripping judgment apparatus including a plan unit that generates a target orbit for moving a gripping unit in a state in which an object as a gripping target is gripped by the gripping unit, an observation unit that measures movement of the gripping unit driven based on the target orbit, a gripping state judgment unit that judges whether or not an object as a gripping target is grippable based on a target value of the gripping unit derived from the target orbit and an actual measured value measured by the observation unit, and a gripping state change unit that changes a gripping state of an object gripped by the gripping unit based on a judgment result obtained by the gripping state judgment unit.
    Type: Grant
    Filed: February 9, 2011
    Date of Patent: May 13, 2014
    Assignee: Sony Corporation
    Inventors: Kenichiro Nagasaka, Toshimitsu Tsuboi, Atsushi Miyamoto, Yasunori Kawanami, Tetsuharu Fukushima, Kenta Kawamoto
  • Patent number: 8690213
    Abstract: A robot hand and a robot according to an embodiment include a set of sliding parts, supporting units, a rotary unit, and a plurality of holding claws. The sliding parts slide in a direction to come close to or move away from each other. The supporting units are secured to the respective sliding parts. The rotary unit is attached to an end portion of at least one of the supporting units and rotates around an axis of rotation parallel to sliding shafts of the sliding parts. The holding claws are attached in directions orthogonal to the axis of rotation and different from one another.
    Type: Grant
    Filed: February 8, 2012
    Date of Patent: April 8, 2014
    Assignee: Kabushiki Kaisha Yaskawa Denki
    Inventors: Toshiyuki Harada, Kenichi Motonaga
  • Patent number: 8616599
    Abstract: A hand according to an embodiment includes a pair of supporting units, a pair of capturing claws, an opening-and-closing mechanism, and a reciprocating mechanism. The pair of capturing claws are supported on the inner surfaces of the pair of respective supporting units and capture a part. The opening-and-closing mechanism opens and closes the pair of supporting units along a reciprocating axis intersecting with longitudinal directions of the supporting units. The reciprocating mechanism causes the pair of capturing claws to rotate about the reciprocating axis to change the direction of each tip of the capturing claws.
    Type: Grant
    Filed: September 8, 2011
    Date of Patent: December 31, 2013
    Assignee: Kabushiki Kaisha Yaskawa Denki
    Inventors: Kenichi Motonaga, Takashi Baba, Toshiyuki Harada, Yoichiro Dan, Yoshiaki Kubota, Jun Tijiwa
  • Publication number: 20130140953
    Abstract: An actuator includes a vibrating piezoelectric element and a holding section configured to hold the piezoelectric element. The holding section includes a first supporting section arranged on a vibrating surface of the piezoelectric element and arranged on one side of the piezoelectric element and a second supporting section arranged on the other side of the piezoelectric element.
    Type: Application
    Filed: December 3, 2012
    Publication date: June 6, 2013
    Applicant: Seiko Epson Corporation
    Inventor: Seiko Epson Corporation
  • Publication number: 20130140949
    Abstract: A drive device includes a movable member, plural piezoelectric motors that cause the movable member to move in a predetermined direction, a drive circuit that drives the plural piezoelectric motors, and plural relays that electrically connect or disconnect at least one of the plural piezoelectric motors to or from the drive circuit.
    Type: Application
    Filed: December 4, 2012
    Publication date: June 6, 2013
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Seiko Epson Corporation
  • Publication number: 20130141717
    Abstract: A vibrating body is accommodated in a vibrating body case in a state where both sides of the vibrating body containing a piezoelectric material are sandwiched between buffer portions from a direction intersecting a bending direction of the vibrating body, and the buffer portions are pressed against the vibrating body using a pressing lid through elastic portions. Pressing plates are provided between the buffer portions and the elastic portions to restrict the movement of the pressing plates in a vibration direction of the vibrating body.
    Type: Application
    Filed: December 5, 2012
    Publication date: June 6, 2013
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Seiko Epson Corporation
  • Publication number: 20130141716
    Abstract: A piezoelectric motor includes a piezoelectric element, electrodes provided in the piezoelectric element, electric wires connected to the electrodes, bond portions which bond the electrodes and the electrical wires, a storage case which stores the piezoelectric element, and support portions which are provided between the piezoelectric element and the storage case, wherein the bond portion and the electric wires are provided in the gap between the electrodes and the storage case.
    Type: Application
    Filed: December 4, 2012
    Publication date: June 6, 2013
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Seiko Epson Corporation
  • Publication number: 20130140954
    Abstract: An actuator includes a vibrating piezoelectric element, and a holding unit that holds the piezoelectric element, in which the holding unit is disposed on a vibrating surface of the piezoelectric element, and includes a first support unit and a second support unit that are disposed on one side of the piezoelectric element, and a third support unit and a fourth support unit that are disposed on the other side of the piezoelectric element.
    Type: Application
    Filed: December 5, 2012
    Publication date: June 6, 2013
    Applicant: SEIKO EPSON CORPORATION
    Inventor: SEIKO EPSON CORPORATION
  • Publication number: 20130082476
    Abstract: A robot claw includes a base seat, more than one elastic assemblies, and at least two first clamping assemblies. The base seat includes a first fastening surface and a second fastening surface opposite to the first fastening surface. Each first clamping assembly includes a sliding unit fastened to the first fastening surface of the base seat and a clamping member fastened to the sliding unit. The sliding unit includes a guide rail. Two elastic assemblies are loaded at two opposite ends of each guide rail; when each of the clamping member slides to one end thereof, one elastic assembly elastically resists with an air cylinder to drive the air cylinder with the clamping member to slide towards the other end of the guide rail of the sliding unit.
    Type: Application
    Filed: June 27, 2012
    Publication date: April 4, 2013
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD.
    Inventors: YONG XIE, XIAO-BIN WU
  • Patent number: 8412376
    Abstract: A method is provided for distributing tension among tendons of a tendon-driven finger in a robotic system, wherein the finger characterized by n degrees of freedom and n+1 tendons. The method includes determining a maximum functional tension and a minimum functional tension of each tendon of the finger, and then using a controller to distribute tension among the tendons, such that each tendon is assigned a tension value less than the maximum functional tension and greater than or equal to the minimum functional tension. The method satisfies the minimum functional tension while minimizing the internal tension in the robotic system, and satisfies the maximum functional tension without introducing a coupled disturbance to the joint torques. A robotic system includes a robot having at least one tendon-driven finger characterized by n degrees of freedom and n+1 tendons, and a controller having an algorithm for controlling the tendons as set forth above.
    Type: Grant
    Filed: March 10, 2010
    Date of Patent: April 2, 2013
    Assignees: GM Global Technology Operations LLC, The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Muhammad E. Abdallah, Robert Platt, Charles W. Wampler, II
  • Patent number: 8355817
    Abstract: A robot system including a robot arm driven by a servo motor; and a robot controller controlling an operation of the robot arm. The robot system further comprises a first detection section detecting a rotation amount of the servo motor; a second detection section attached to a tip portion of the robot arm, and detecting a velocity or acceleration of the tip portion of the robot arm; a computation section computing the velocity or acceleration of the tip portion of the robot arm based on values detected by the first detection section, and computing a deviation between this computed velocity or acceleration and the velocity or acceleration detected by the second detection section; and an emergency stop section for bringing the servo motor to an emergency stop when a magnitude of the deviation computed by the computation section is greater than a reference value.
    Type: Grant
    Filed: March 11, 2011
    Date of Patent: January 15, 2013
    Assignee: FANUC Corporation
    Inventors: Ryo Nihei, Tetsuaki Kato, Takeaki Aramaki, Tomoyuki Yamamoto
  • Patent number: 8348931
    Abstract: A robotic surgery system comprises a mounting base, a plurality of surgical instruments, and an articulate support assembly. Each instrument is insertable into a patient through an associated minimally invasive aperture to a desired internal surgical site. The articulate support assembly movably supports the instruments relative to the base. The support generally comprises an orienting platform, a platform linkage movably supporting the orienting platform relative to the base, and a plurality of manipulators mounted to the orienting platform, wherein each manipulator movably supports an associated instrument.
    Type: Grant
    Filed: January 29, 2009
    Date of Patent: January 8, 2013
    Assignee: Intuitive Surgical Operations, Inc.
    Inventors: Thomas G. Cooper, Stephen J. Blumenkranz, Gary S. Guthart, David J. Rosa
  • Publication number: 20120205929
    Abstract: The disclosure relates to a gripping device comprising holders which exhibit a two-directional elasticity for picking up products with large dimensional tolerances.
    Type: Application
    Filed: February 14, 2012
    Publication date: August 16, 2012
    Applicant: MULTIVAC SEPP HAGGENMUELLER GMBH & CO. KG
    Inventors: Michael Sdahl, Johannes Mühlschlegel
  • Patent number: 8242730
    Abstract: A robot teach tool is provided that enables automatic teaching of pick and place positions for a robot. The automated robot teach tool obviates the need for manual operation of the robot during the teaching. The result is an automated process that is much faster, more accurate, more repeatable and less taxing on a robot operator.
    Type: Grant
    Filed: June 9, 2009
    Date of Patent: August 14, 2012
    Inventors: Michael J. Nichols, Louis J. Guarracina
  • Publication number: 20120112485
    Abstract: A robot hand including a frame, a link member moving relative to the frame, a joint unit provided between the frame and the link member, a drive unit supplying power to the joint unit so as to rotate the link member, and a backlash removal unit supplying constant torque to the joint unit, even if a relative position of the link member to the frame is changed as the link member is rotated.
    Type: Application
    Filed: October 27, 2011
    Publication date: May 10, 2012
    Applicant: Samsung Electronics Co.,Ltd.
    Inventors: Youn Baek LEE, Yong Jae Kim, Jeong Hun Kim, Heum Yong Park
  • Publication number: 20120041595
    Abstract: A pistol-grip controller for the control of a robotic or virtual hand has multiple dual-action switching mechanisms positioned to simulate intuitively the motion of grasping and releasing an object. An externally-projecting switch trigger of each switching mechanism is hook-shaped to facilitate the operator donning and doffing the controller. These switches move in response to gripping and releasing movements of the associated fingers so as to close or open peripherals (fingers) of the end effector hand. A rocker switch allows an operator to toggle conveniently between commonly used modes of a virtual or robot hand, or the like. The mode toggling is complemented by a control to adjust between the commonly used modes of operation. To make the manipulation of the end effector more intuitive, the controller remaps the switching mechanisms to different functionalities on the end effector based on the mode of operation. The transition between switch to end effector mappings is hysteretic.
    Type: Application
    Filed: August 11, 2011
    Publication date: February 16, 2012
    Inventors: Daniel Greeley, Daniel Fourie, Bryce Lee, Yevgeniy Kozlenko, David Wilkinson, William T. Townsend
  • Publication number: 20110288683
    Abstract: The grip position calculator determines a grip position where the fingers can grip a workpiece in any orientation of the workpiece. The calculator then determines an initial position where the finger tips can grip the workpiece and set the initial position as a point of calculation. Then an allowable gripping force is calculated which is an index that indicates an allowable force to be applied to the workpiece at point. Then other allowable forces are calculated for a plurality of points near the point of calculation. Then the point of calculation is selected as a possible gripping position if the allowable force a point is greater than any of the allowable forces. Otherwise, one of the points is selected for another point of calculation where the greatest allowable force (De) has been calculated and return to calculating an allowable gripping force.
    Type: Application
    Filed: January 28, 2010
    Publication date: November 24, 2011
    Applicants: NATIONAL UNIVERSITY CORPORATION, HONDA MOTOR CO., LTD.
    Inventors: Toshiyuki Kondo, Shinji Sawada, Nobuhiro Nanba, Yoshikazu Hayakawa, Kenji Fujimoto, Akira Nakashima, Takashi Uno
  • Patent number: 8049601
    Abstract: Systems and methods are provided for controlling one or more servos coupled to a model vehicle. An input signal having a series of input pulses encoded at an input pulse repetition frequency is received at a receiver coupled to a model vehicle having one or more servos. The input signal is decoded at the receiver. A servo control pulse is generated using at least one of the input pulses at the receiver. The servo control pulse is outputted to at least one of the servos at an output pulse repetition frequency that is different from the input pulse repetition frequency.
    Type: Grant
    Filed: April 27, 2007
    Date of Patent: November 1, 2011
    Assignee: Castle Creations, Inc.
    Inventors: Richard A. Hofer, Jonathan R. Feldkamp
  • Patent number: 8034210
    Abstract: Apparatus and method for visualizing air stream by little threads on aerodynamic surfaces such that strips of adhesive tape populated with threads are automatically fabricated.
    Type: Grant
    Filed: June 4, 2010
    Date of Patent: October 11, 2011
    Assignee: Airbus Deutschland GmbH
    Inventors: Eva Marie Montilla Mendez, Susanne Wyrembek, Tim Moenning
  • Publication number: 20110068595
    Abstract: A robotic hand includes a finger with first, second, and third phalanges. A first joint rotatably connects the first phalange to a base structure. A second joint rotatably connects the first phalange to the second phalange. A third joint rotatably connects the third phalange to the second phalange. The second joint and the third joint are kinematically linked such that the position of the third phalange with respect to the second phalange is determined by the position of the second phalange with respect to the first phalange.
    Type: Application
    Filed: September 22, 2009
    Publication date: March 24, 2011
    Applicants: GM GLOBAL TECHNOLOGY OPERATIONS, INC., The U.S.A. As Represented by the Administrator of the National Aeronautics and Space Administraion, Oceaneering International, Inc.
    Inventors: Chris A. Ihrke, Lyndon Bridgwater, Myron A. Diftler, Douglas Martin Linn, Robert Platt, Brian Hargrave, Scott R. Askew, Michael C. Valvo
  • Patent number: 7890235
    Abstract: A system for controlling a work machine and work tool from a remote controller. The remote controller sends a control signal to a receiver assembly and machine controller. The machine controller processes the control signal to determine the location of the remote controller relative to the receiver assembly and to alter operational characteristics of the machine or work tool based on the control signal or the location of the remote controller relative to the receiver assembly. The system may include a tag system to detect the presence of workers at the jobsite and to alter operation of the machine and work tool based upon the location of the workers relative to the machine or work tool. In another embodiment, a signal may be transmitted from the work machine and detected by a remote receiver assembly. A processor uses the detected signal to determine the position of the remote receiver assembly relative to the work machine.
    Type: Grant
    Filed: May 26, 2006
    Date of Patent: February 15, 2011
    Assignee: The Charles Machine Works, Inc.
    Inventors: Kelvin P. Self, Nathan Kiner
  • Publication number: 20100280659
    Abstract: A method is provided for distributing tension among tendons of a tendon-driven finger in a robotic system, wherein the finger characterized by n degrees of freedom and n+1 tendons. The method includes determining a maximum functional tension and a minimum functional tension of each tendon of the finger, and then using a controller to distribute tension among the tendons, such that each tendon is assigned a tension value less than the maximum functional tension and greater than or equal to the minimum functional tension. The method satisfies the minimum functional tension while minimizing the internal tension in the robotic system, and satisfies the maximum functional tension without introducing a coupled disturbance to the joint torques. A robotic system includes a robot having at least one tendon-driven finger characterized by n degrees of freedom and n+1 tendons, and a controller having an algorithm for controlling the tendons as set forth above.
    Type: Application
    Filed: March 10, 2010
    Publication date: November 4, 2010
    Applicants: GM GLOBAL TECHNOLOGY OPERATIONS, INC., The U.S.A. As Represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Muhammad E. Abdallah, Robert J. Platt, JR., Charles W. Wampler, II
  • Publication number: 20100156125
    Abstract: Disclosed are a robot hand and a humanoid robot having the same. The robot hand includes a plurality of finger members and a base member to which one end of the finger members is rotatably coupled, respectively. The finger members are rotated through pneumatic pressure so that intervals between adjacent finger members are changed. If the finger members are not used, the intervals between the finger members are widened so that the finger members are prevented from being damaged when the finger members collide with walls or objects.
    Type: Application
    Filed: November 20, 2009
    Publication date: June 24, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ja Woo Lee, Yong Jae Kim, Kang Min Park
  • Publication number: 20100109360
    Abstract: In a gripping device, a displacement-type force sensor is provided on a side of a driving mechanism opposite fingers to which the driving mechanism is connected to form a grip section. The driving mechanism is supported on a housing with an elastic member being disposed therebetween at a position closer to the fingers than the center of gravity of the grip section.
    Type: Application
    Filed: October 26, 2009
    Publication date: May 6, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Ken Meisho
  • Patent number: 7696860
    Abstract: Tactile communication methods, systems and devices for wireless touch communication which include an array of electromechanical transducers each independently capable of producing a vibration for communicating qualitative and quantitative tactile cues to a user, at least one electromagnetic field sensor coupled with at least one of the array of transducers for monitoring a change in an electromagnetic field of the array of electromechanical transducers and producing an output signals when a change is detected, wherein a change in a position of a transducer contactor produces the change in the electromagnetic field and a vibrotactile waistbelt for housing the array of electromechanical transducers and sensors, wherein the vibrotactile waistbelt is worn by a user to receive and send wireless touch communication respectively from and to a remotely located controller.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: April 13, 2010
    Assignee: University of Central Florida Research Foundation, Inc
    Inventors: Richard D. Gilson, J. Christopher Brill, Gary A. Zets, Bruce J. P. Mortimer
  • Publication number: 20100025383
    Abstract: The clamp comprises a balancing module that provides one degree of freedom between the mounting and the mobile subassembly that connects together the fixed and mobile arms and a main actuator, and this module has a device for moving this mobile subassembly relative to the mounting in this degree of freedom, for example in translation, the balancing system comprising a flexible device which is connected to the mobile subassembly and which applies a force, in said degree of freedom, to at least one member connected to the mounting, and, in addition, at least one balancing actuator for moving the mobile subassembly to a balanced position relative to the mounting. Particularly applicable to electrical resistance welding clamps.
    Type: Application
    Filed: June 29, 2007
    Publication date: February 4, 2010
    Applicant: ARO Welding Technologies
    Inventor: Olivier Tiberghien
  • Patent number: 7574250
    Abstract: An input device of a teleoperator system can be operatively associated with an image of a surgical worksite. Movement of the image may correspond to movement of the input device so that the worksite image appears substantially connected to the input device. The operator can manipulate the worksite into a desired position, typically by repositioning of an image capture device. Dedicated input devices may be provided for a surgical instrument.
    Type: Grant
    Filed: February 4, 2003
    Date of Patent: August 11, 2009
    Assignee: Intuitive Surgical, Inc.
    Inventor: Gunter D. Niemeyer
  • Publication number: 20080188985
    Abstract: A robot control unit (10) having a designated speed adjusting means for adjusting a designated speed, which is contained in a robot command program, to a value not more than the designated speed, comprises: a decoding means (38) for decoding a movement stopping command of stopping a movement of the robot (1) according to a force detection value detected by a force sensor (2) attached to a wrist of the robot (1); a movement command means (36) for generating a movement command of moving the robot by the designated speed in the designated direction contained in the program without activating the designated speed adjusting means; a force calculation means (31) for calculating a change in a force detection value from a reference value as a present force value; and a comparison means (32) for comparing a present force value, which is repeatedly calculated at a predetermined period by the force calculation means, with a predetermined force designated value while the robot is moving.
    Type: Application
    Filed: January 31, 2008
    Publication date: August 7, 2008
    Inventor: Tetsuro Sakano
  • Patent number: 7278203
    Abstract: A chip transfer apparatus includes a first carrier for feeding chips and a second carrier for carrying works on it. The transfer apparatus also includes a transfer engine including two or more coaxial revolvers, which can revolve coaxially with each other. Each of the coaxial revolvers includes an end-effector for receiving a chip from the first carrier and transferring the received chip onto a work on the second carrier. The end-effectors of the coaxial revolvers are arranged in a circle coaxial with the revolvers. The end-effectors sequentially receive chips from the first carrier at substantially zero speed relative to the first carrier and transfer the received chips onto works on the second carrier at substantially zero speed relative to the second carrier. While the end-effectors are revolving, they undergo periodic speed change control for timing adjustment and speed adjustment for the chip reception and transfer.
    Type: Grant
    Filed: October 2, 2003
    Date of Patent: October 9, 2007
    Assignee: Hallys Corporation
    Inventors: Hiroshi Aoyama, Ryoichi Nishigawa
  • Patent number: 6841964
    Abstract: Then an end effecter is used to operate a heavy object, a large bending moment may act on arms of a manipulator to bend them. Consequently, an operating section cannot precisely control positions. Thus, according to the present invention, three arms 14 are attached to a base section 11, each of the arms 14 being composed of a first link section 15 having one end connected to a rotating shaft 12 on the base section 11 and a second link section 17 connected to the first link section 15 via another rotating shaft 16. These arms 14 support an operating section 19. The second link section 17 is connected to the rotating shaft 16 and to the operating section 19 using universal joints 18a and 18b. Direct acting driving means 13 is composed of a driving shaft 13a and a driving source that advances and retreats the driving shaft 13a. The driving shaft 13a is driven to advance and retreat to move the operating section 19 to a desired position.
    Type: Grant
    Filed: April 18, 2003
    Date of Patent: January 11, 2005
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventors: Koichi Osuka, Yoichi Nakamura
  • Patent number: 6584378
    Abstract: When determining coordinates of a point of an object (2) in a reference system of coordinates and the orientation of the object in the space in a measuring position assumed by the object, the object is moved from a start position having known coordinates and a known orientation to a measuring position while detecting this movement. Said coordinates and the orientation of the object in the measuring position are calculated from information from this detection and about the start position. Furthermore, the acceleration and retardation of the object are measured during the movement, and the coordinates and the orientation of the object in the measuring position are calculated from information from this measurement.
    Type: Grant
    Filed: April 22, 2002
    Date of Patent: June 24, 2003
    Assignee: ABB Flexible Automation
    Inventor: Ole Arnt Anfindsen
  • Patent number: 6570356
    Abstract: The robot system including a 6-axis robot has a swingable arm for transferring a workpiece between first and second positions, a wrist on a distal end of the arm, that is driven to rotate around a predetermined axis, and a transfer device at the wrist. The transfer device has a link mechanism having first and second links and holding means attached to a distal end of the second link. A proximal end of the first link is attached to the wrist so as to rotate around the predetermined axis. A distal end of the first link and a proximal end of the second link are rotatably connected to each other. In accordance with a swinging motion of the arm, the first link rotates in a first rotational direction with respect to the arm and the second link rotates in a second rotational direction opposite to the first rotational direction with respect to the first link, so as to transfer the workpiece along a straight line linking the first and second positions.
    Type: Grant
    Filed: April 4, 2001
    Date of Patent: May 27, 2003
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventor: Koji Doi
  • Patent number: 6530615
    Abstract: A fluid pressure actuated gripper employed in automated workpiece handling systems. The gripper clampingly grips and transfers workpieces from one station to another. A pair of jaw members are positioned in the gripper device which has a pressure-actuated mechanism, a base plate and removable side plate members. A pair of axially offset cam pin members attached to the end of a piston rod and actuated by the pressure-actuated mechanism is used to open and close the gripper jaw members. Pivot pins or shafts pivotably connect the jaw members to the side plate members.
    Type: Grant
    Filed: January 17, 2001
    Date of Patent: March 11, 2003
    Assignee: Syron Engineering & Mfg., LLC
    Inventors: Michael A. Filipiak, Mansoor Eslami
  • Patent number: 6345213
    Abstract: A method provides an exact measurement of the tool center point (TCP) being carried out, preferably in the whole working area of the robot. In this measurement, the robot moves very slowly so that little heat is generated by the driving assemblies and the temperature gradients are as low as possible. The measurement can be made, for example, using a high-precision laser distance and angle measurement system. The measurement is carried out such that a measuring point is moved to working area points and then the deviations of the positions and/or orientations of the measuring point are determined using the laser distance and angle measurement system, i.e. a nominal/actual comparison is made. The TCP can preferably serve as the measuring point. The point must always be selected so that the positioning and orientation deviations of the kinematic chain with respect to the PCT can be determined with sufficient accuracy.
    Type: Grant
    Filed: February 14, 2001
    Date of Patent: February 5, 2002
    Assignee: Institut fuer Werkzeugmaschinen und Betriebswissenschaften TU Muenchen
    Inventors: Ralf-Gunter Graeser, Robert Klingel
  • Patent number: 6332636
    Abstract: A robotic arm has a pair of gripper fingers designed to grip a variety of containers, including capped and uncapped test tubes as well as containers having unique gripping means. The fingers each have upper and lower projections separated by a groove, the respective projections facing each other when mounted to grippers on the robotic arm. The projections and groove serve to firmly hold the containers as well as self-align the unique gripping means on initially unaligned containers within the fingers as the fingers close around the containers. The fingers have clearance to avoid contact with caps on capped test tubes. Stops are provided at the top of each finger to engage one another and prevent fully closed fingers from deforming. The robotic arm may be transported along a rail mounted above the instrument and a gripper assembly, having a gripper arm, mounted to the robotic arm may be rotated above the instrument to move the container to various locations within the instrument.
    Type: Grant
    Filed: March 24, 2000
    Date of Patent: December 25, 2001
    Assignee: Bayer Corporation
    Inventors: Beri Cohen, Thomas W. DeYoung, Krunoslav Esteban Draganovic, Lev Vant, Richard S. Antoszewski, Joseph J. Zelezniak, Edward R. Sieger, Jr.
  • Patent number: 6121743
    Abstract: An improvement is set forth in a robotic arm structure which includes at least two links. .theta. motion is provided about a primary axis at the proximal end portion of the proximalmost of the links. R motion proceeds radially from the primary axis whereby the distal end portion of the distalmost of the links can be moved in a radially extending straight line. At least two independent end effectors are pivotally mounted for rotation relative to the distal end portion of the distalmost link about an end effector axis which is parallel to the primary axis. The structure is improved by adding independent yaw motors for rotating the end effectors independently.
    Type: Grant
    Filed: August 4, 1998
    Date of Patent: September 19, 2000
    Assignee: Genmark Automation, Inc.
    Inventors: Genco Genov, deceased, Alexander Todorov, Lubo Kostov, Peter Petkov, Valentin Totev, Eugene Bonev, Zlatko Sotirov
  • Patent number: 5945798
    Abstract: A method for determining if a robot gripper assembly (preferably servo controlled) has acquired a work piece wherein the robot gripper assembly includes at least two opposing fingers comprising the steps of commanding the robot gripper assembly to close the two opposing fingers to a predetermined position to acquire the work piece, the predetermined position being less than or different than the expected work piece dimension; quantifying the movement of the two opposing fingers when the closing step has been completed; comparing the actual position to the predetermined position to determine a position error; and recognizing that a work piece has been acquired by the two opposing fingers if the position error is not zero indicating that the interference of the work piece between the two opposing fingers has prevented the two opposing fingers from achieving the predetermined position.
    Type: Grant
    Filed: August 27, 1998
    Date of Patent: August 31, 1999
    Assignee: Eastman Kodak Company
    Inventors: Joseph E. Stagnitto, Camiel J. Raes, James A. White
  • Patent number: 5672044
    Abstract: An automatic, controlled manipulator includes a power supply controlling motion of a tool head and providing power to a removeable powered tool supported at the end of the arm. The manipulator may be moveable in multiple or all directions. A storage for remotely generated control signals can be accessed to control motors causing 3D motion of the tool head, attachment of the tool, and (if applicable) motion of the manipulator, and also to control power to operate the tool.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: September 30, 1997
    Inventor: Jerome H. Lemelson
  • Patent number: 5671962
    Abstract: A robot hand is provided with a bifinger unit integrally including a pair of fingers for grasping a workpiece therebetween, a finger feed unit for moving the pair of fingers between a predetermined open position and a closed grasping position, a single servomotor driving the feed mechanism to thereby move the pair of fingers so that a constant predetermined holding force is applied to the workpiece from the pair of fingers during the grasping operation of the fingers of the bifinger unit of the robot hand irrespective of the weight, the size, the shape or the surface condition of the workpiece.
    Type: Grant
    Filed: August 22, 1995
    Date of Patent: September 30, 1997
    Assignee: Fanuc Ltd.
    Inventors: Kazuhisa Otsuka, Akira Tanaka