Welding Patents (Class 901/42)
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Patent number: 8338743Abstract: The invention relates to a method for controlling robots for welding three-dimensional workpieces, comprising the following steps: positioning and tacking profiles to a plate in order to form the workpiece to be welded, depicting the workpiece by means of a three-dimensional imaging system in the form of three-dimensional pixels, determining the geometric data of the plate and profiles, including the allocation of cutouts and final cutting shapes from the three-dimensional pixels, determining the weld seam data from the geometric data while considering the profile placement lines and the contact lines of profiles, allocating the weld seam data to parameterizable specifications for the weld plan into stored predefined movement patterns of the robot, and into commands for the control of the welding process.Type: GrantFiled: February 19, 2008Date of Patent: December 25, 2012Assignees: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung E.V., Universitaet RostockInventors: Martin Christoph Wanner, Alexander Zych, Uwe Pfletscher
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Patent number: 8326454Abstract: Provided are a power assist apparatus and its control method, which realize improvements in positioning precision and in workability while reducing the burden of a work positioning operation on a operator by burdening a portion of the positioning work on the power assist apparatus and while making good use of the decision or experience (or institution or knack) by the operator when the operator positions the work by using the power assist apparatus. The power assist apparatus thus autonomously cooperated with the working action of the operator comprises a transfer tool including an articulated robot, a sucking jig and a free joint for gripping and transferring windows, and a control device for controlling the actions of the transfer tool. The control device divides and stores a series of working tasks into a plurality of working section, and sets control logics for the individual working sections and for the individual working directions, in which the power assist apparatus has degrees of freedom.Type: GrantFiled: July 25, 2008Date of Patent: December 4, 2012Assignee: Toyota Jidosha Kabushiki KaishaInventor: Tadashi Odashima
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Patent number: 8321054Abstract: A method for adjusting a program including program instructions for controlling an industrial robot to carry out work at a plurality of target points on a work object. The robot includes a tool having two arms adapted to clamp the work object and at least one of the arms is arranged movable relative the other arm in an opening and a closing direction, a manipulator adapted to hold the tool or the work object, and a controller controlling the movements of the manipulator and the tool arm and configured to switch between a normal control mode and a compliant control mode in which the manipulator has a reduced stiffness in at least one direction. The method includes moving the manipulator and the tool according to the program instructions until one of the target points is reached.Type: GrantFiled: February 14, 2012Date of Patent: November 27, 2012Assignee: ABB Technology Ltd.Inventors: Tony Selnes, Ake Olofsson
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Publication number: 20120296471Abstract: A robot (100) has a robot mechanism unit (1) having a sensor (10) and a control unit (2), and the control unit (2) includes a normal control unit (4) that controls the operation of the robot mechanism unit, and a learning control unit (3) that, when the robot mechanism unit (1) is operated by a speed command that is given by multiplying a teaching speed designated in a task program by a speed change ratio, performs learning to calculate, from a detection result by the sensor (10), a learning correction amount for making the trajectory or position of the control target in the robot mechanism unit (1) approach the target trajectory or target position, or for reducing the vibration of the control target, and performs processes so that the control target position of the robot mechanism unit (1) moves along a fixed trajectory regardless of the speed change ratio.Type: ApplicationFiled: May 11, 2012Publication date: November 22, 2012Applicant: FANUC CORPORATIONInventors: Kiyonori INABA, Masakazu ICHINOSE
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Patent number: 8302281Abstract: A method and apparatus for providing motor vehicle sub-assemblies with unrestricted model mix and quick changeover between models. The apparatus includes a track; a carriage mounted for longitudinal movement along the track between first and second positions; and first and second turrets rotatably mounted on the carriage at longitudinally spaced locations and each including a plurality of circumferentially spaced individual faces and unique tooling fixtures on the respective faces for receiving unique work piece components corresponding to a plurality of motor vehicle body styles.Type: GrantFiled: October 11, 2011Date of Patent: November 6, 2012Assignee: Comau, Inc.Inventor: Velibor Kilibarda
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Patent number: 8288687Abstract: An arc welding robot having a welding wire conduit which has a bend radius above a certain level and arranged so that disadvantageous stress is not applied to the conduit by the motion of the robot arm. A conduit for a welding wire is inserted through a hole of a robot pedestal from the rear side of the robot, is supported by a second support member arranged on the pedestal, extends near the front side of a rotating body of the robot, and is supported by a first support member on the upper part of the rotating body while having a required minimum bend radius. The conduit after passing through the first support member is introduced to the rear side of the upper arm and is connected to a connector at the rear side of a wire feeder while having the required minimum radius, whereby the conduit presents a generally S-shape.Type: GrantFiled: June 22, 2009Date of Patent: October 16, 2012Assignee: FANUC LtdInventors: Toshihiko Inoue, Kazutaka Nakayama, Takatoshi Iwayama
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Patent number: 8286527Abstract: An exemplary manipulator includes arms, an inlet conduit, and sealing members. The arms are rotatably joined. The inlet conduit extends into one of the arms and non-combustible gas is introduced into the arms via the inlet conduit. The sealing members are disposed where two corresponding of the arms are rotatably joined together. The manipulator is doubly protected from infiltration by unwanted gases by the high pressure gas in the manipulator and by the sealing members.Type: GrantFiled: January 11, 2010Date of Patent: October 16, 2012Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co. Ltd.Inventors: Zhen-Xing Liu, Yong Zhang
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Publication number: 20120255937Abstract: This robot system includes a robot, a laser emitting portion moved by the robot, capable of scanning a welding locus with a laser beam at least in a state where the laser emitting portion is not moving, and a control portion controlling the laser emitting portion to scan the welding locus with the laser beam in order to perform welding with weaving on the welding locus at least in the state where the laser emitting portion is not moving.Type: ApplicationFiled: February 13, 2012Publication date: October 11, 2012Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Yuki Oe, Keiji Makino
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Patent number: 8274009Abstract: An automotive body framing system includes a setter supported by parallel spaced tracks for movement from a work position to a standby position and to a gate change position and driven by corresponding racks and synchronized pinion drive units. Opposing gate storage belt shuttles are located at the gate change position for receiving the setter therebetween, and a gate staging cart is supported in back of the setter by parallel tracks and is also moved between opposing gate storage belt shuttles by synchronized rack and pinion drive units. Power operated registration units are positioned on the setter to register each gate received at precise horizontal and vertical positions, and the setter, staging cart and gate storage belt shuttles each have a series of resilient guide and support rollers to provide for quiet operation during rapid transfer of the gates on the setter, staging cart and belt shuttles.Type: GrantFiled: July 13, 2010Date of Patent: September 25, 2012Assignee: Easom Automation Systems, Inc.Inventor: Reginald D. Kelley
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Patent number: 8263898Abstract: The invention relates to a device and a method for producing tailored blanks. The device comprises a workpiece carrier for the sheets (15a, 15b) that are to be joined into tailored blanks in the butt joint by welding. The invention further comprises a plurality of laser welding heads (14a, 14b), which are arranged one behind the other over the workpiece carrier and along the butt joint to be welded and can be moved with an advancing device (11a, 11b), wherein the heads can be aligned with the joint using positioning means, wherein at least two combined laser cutting and welding heads (14a, 14b) are carried by at least two independent arms (13a, 13b), each associated with independent units (11a, 11b) of the advancing device, and wherein the positioning means can adjust the distances of the units (11a, 11b) in the direction of the butt joint and also the distances of the cutting and welding heads (14a, 14b) in the transversal direction to the butt joint.Type: GrantFiled: May 15, 2008Date of Patent: September 11, 2012Assignee: ThyssenKrupp Lasertechnik GmbHInventor: Gerhard Alber
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Patent number: 8214081Abstract: A wall climbing robot using an Indoor Global Positioning System (IGPS) provided in a room is disclosed. The wall climbing robot includes a navigation receiver configured to receive rotating fan beams emitted from one or more navigation transmitters of the indoor global positioning system, and recognize the rotating fan beams as IGPS signals; a robot frame provided with the navigation receiver mounted; a mobile controller configured to be installed on the robot frame, and to recognize and determine its own position using the IGPS signals; and a drive mechanism configured to travel along the surfaces of the room under control of the mobile controller. The mobile controller includes a central processing unit, an input/output unit, a motion control unit, a drive control unit, a navigation control unit, a sensor signal processor, an emergency processing unit, and an alarm generator.Type: GrantFiled: September 21, 2007Date of Patent: July 3, 2012Assignee: Samsung Heavy Ind. Co., Ltd.Inventors: Doo-jin Choi, Seong-jong Han, Yun-Seo Choi, Young-jun Park, Jae-hoon Kim
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Patent number: 8207475Abstract: A wire feeding unit for feeding a welding wire in a torch cable of a welding robot, the torch cable passing through the inside of an upper arm in its direction, includes a body member, which is mounted on an inner periphery of the upper arm in a state of being freely pivotable around the axis of the upper arm, and to which the torch cable is installed, and a feed roller mounted to the body member in a state of being freely rotatable around an axis orthogonal to the axis of the arm. Here, the welding wire exposed out of the torch cable is in contact with the circumferential surface of the feed roller and is fed by the rotation of the feed roller in a direction of the axis of the upper arm. According to the configuration like this, when an arm is pivoted, the torch cable passing through the arm is able to be prevented from being twisted.Type: GrantFiled: January 26, 2009Date of Patent: June 26, 2012Assignee: Kobe Steel, Ltd.Inventors: Tatsuji Minato, Makoto Kondo
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Patent number: 8191504Abstract: A coating end effector may be carried by a robot. A plasma spray head is mounted by a joint to the end effector. A plurality of actuators couple the end effector and plasma spray head to provide articulation of the joint. The apparatus may be used to coat an airfoil cluster of a gas turbine engine. The coating may include passing the head between the airfoils.Type: GrantFiled: November 27, 2006Date of Patent: June 5, 2012Assignee: United Technologies CorporationInventor: Donn R. Blankenship
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Patent number: 8168918Abstract: A laser processing head mounted on a robot arm moves from with a constant speed in a direction from a welding point to a next welding point, while a reflection mirror continuously turns in order to maintain laser beams focused on the welding point until the welding at the welding point is completed, and the reflection mirror quickly turns to shift the focus of the laser beams onto the next welding point when the welding at the welding point is completed.Type: GrantFiled: December 14, 2005Date of Patent: May 1, 2012Assignee: Nissan Motor Co., Ltd.Inventor: Hitoshi Kawai
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Publication number: 20120067157Abstract: A robot includes a base; a swivel unit rotatably arranged on the base; a lower arm having a base end portion, a tip end portion and a side surface, the base end portion rotatably supported on the swivel unit to enable the lower arm to swing in a front-rear direction; and first and second cable bundles arranged on the side surface of the lower arm to extend along a longitudinal direction of the lower arm. The robot further includes a cable bundle support mechanism including a guide unit for supporting the first and second cable bundles to move in the longitudinal direction of the lower arm.Type: ApplicationFiled: September 9, 2011Publication date: March 22, 2012Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Hidetoshi SUZUKI, Ryuta Kagawa, Takashi Sanada
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Publication number: 20120029674Abstract: A welding line can be rapidly extracted using three-dimensional CAD data constituted of a large number of line sections containing welding line candidates. The method of choosing a welding line includes: a step (S110) of specifying one face (first face constituting a reference face) from two faces of a member where a welding line is to be formed; a step (S120) of specifying the other face (second face constituting a groove face) from the two faces of the number where a welding line is to be formed; a step. (S130) of extracting an edge line; a step (S140) of selecting an edge line zone where welding is possible; a step (S150) of creating welding line information by unifying edge lines where welding is possible; and a step (S160) of correcting welding line information in accordance with the groove shape.Type: ApplicationFiled: February 12, 2010Publication date: February 2, 2012Inventor: Masatoshi Hida
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Patent number: 8099184Abstract: Disclosed is a method and system for compensating for the load a part places on a part positioner system that positions the part for work operations by a robot. The part positioner system rotates a part holding assembly about the axis of rotation of a shoulder drive. The part holding assembly may have a column that extends perpendicular to the shoulder center line. A counter weight system is incorporated into the column that includes a counter weight pack that is moved along the length of the column. The shoulder drive drives the part and part holding assembly load in order to measure a torque applied to the shoulder drive. A load offset may be calculated based on the applied torque. The counter weight pack may then be moved to a position on the column calculated to balance the load of the part and part holding assembly.Type: GrantFiled: April 13, 2009Date of Patent: January 17, 2012Assignee: Rimrock Automation, Inc.Inventors: John Schoening, Lance F. Guymon
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Publication number: 20110301733Abstract: The movement of a single electrode by a welding robot system (a) is followed by the movement of a single electrode by another welding robot system (b). By constructing the single electrode of one welding robot system (a) and the single electrode of the another welding robot system (b) to perform welding simultaneously in the same direction on the same welding line, the degrees of freedom of the robots are not restricted, the available welding range becomes wide, and constraints on the posture of the robots are eliminated, compared with a case where a tandem welding-dedicated torch is used.Type: ApplicationFiled: February 16, 2010Publication date: December 8, 2011Applicant: Panasonic CorporationInventors: Kazumasa Yoshima, Toshiaki Masai
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Patent number: 8020466Abstract: An umbilical-member processing structure for an industrial robot which includes a forearm having a tool managing and relaying device and a wrist with proximal end rotatably connected to the forearm and having a work tool mounted on the distal end thereof, with an umbilical-member connected to the work tool being disposed to run along the wrist via the tool managing and relaying device: wherein the forearm has a first reduction gear which reduces the rotational speed of a driving source to drive the forearm in rotation; the first reduction gear having a first insertion hole for passing the umbilical-member therein; and wherein the wrist comprises a first wrist element having a through-path in communication with the first insertion hole and rotatably connected to the forearm, and a second wrist element having a second insertion hole in communication with the through-path and rotatably connected to the first wrist element.Type: GrantFiled: July 9, 2008Date of Patent: September 20, 2011Assignee: FANUC LtdInventors: Toshihiko Inoue, Kazutaka Nakayama, Takatoshi Iwayama
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Patent number: 8015688Abstract: An apparatus and method is provided for hemming together a pair of panels and immediately sealing the hemmed joint against the intrusion of moisture. A tool mount is attached to a multi-axis manipulator such as a robot for moving the tool mount along the edge portions of the panels. A hemming roller is mounted on the tool mount and adapted to be moved along the edge portions of the panels by the multi axis manipulator to fold the flanged edge portion of the outer panel onto the edge portion of inner panel as the tool mount traverses the edge portions of the panels. A sealing mechanism is mounted on the tool mount adjacent to the hemming roller to seal the hemmed joint immediately after the flanged edge portion is folded onto the inner panel. The sealing mechanism may be a dispenser of adhesive sealer or a friction stir welder.Type: GrantFiled: June 30, 2006Date of Patent: September 13, 2011Assignee: GM Global Technology Operations LLCInventors: Yen-Lung Chen, John E. Carsley, Mark W. Verbrugge, Xiaohong Q. Gayden
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Patent number: 8011558Abstract: A robotic welding system and method includes multiple welding cells equidistantly spaced in a circular arrangement, multiple perimeter light curtains to provide safety protection around the welding cells, a turntable centrally located in the circular arrangement, and multiple welding robots attached to the turntable. The welding system and method further includes a first welding process and a second welding process whereby both the first welding process and the second welding process each include a primary welding operation and a secondary welding operation whereby the turntable rotates between the welding cells to perform the primary and secondary welding operations.Type: GrantFiled: March 30, 2010Date of Patent: September 6, 2011Assignee: Honda Motor Co., Ltd.Inventors: George Charbel, Yoshinori Ishihata, Julia Zoldak
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Patent number: 7965055Abstract: A control device of a work positioning apparatus includes an operating limit line storage unit for storing position coordinates of an operating limit line, a speed reduction zone storage unit for storing a width of a speed reduction zone ranging from a reduction start position to the operating limit line, a check point storage unit for storing position coordinates of check points set in the work, a check point updating unit for determining position coordinates of the check points moved in accordance with an operation of the work positioning apparatus by calculation, an in-speed-reduction-zone determining unit for determining whether the check points enter the speed reduction zone in accordance with the updated position coordinates of the check points, and a work positioning apparatus control unit for instructing a work positioning apparatus motor to reduce a speed if the check points are determined to enter the speed reduction zone.Type: GrantFiled: February 13, 2008Date of Patent: June 21, 2011Assignee: Kobe Steel, Ltd.Inventors: Takeshi Koike, Masayuki Shigeyoshi, Masaki Shibaike
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Publication number: 20110031298Abstract: Adjustable, elongate, beam-offset jig structure for assisting, under manual, or appropriate computer, control, in welding a pair of beam-end, column-interface components to the opposite ends of an elongate beam. The jig structure includes spaced, adjustable head-stock and tail-stock structures, each capable of holding such a component adjacent a beam end for adjustment to an infinite number of different, pre-weld angular-offset dispositions relative to such a beam end in order to accommodate planned horizontal and vertical beam offsets which will be encountered when such beams are installed in a building frame. A computer-controlled, robotic welder may be provided adjacent each end of the jig structure to implement appropriate welding when any and all offset angles have been jig-established.Type: ApplicationFiled: October 15, 2010Publication date: February 10, 2011Applicant: ConXtech, Inc.Inventor: Robert J. Simmons
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Publication number: 20110029132Abstract: A system for calibrating a robotic tool includes a housing including an aperture for receiving the robotic tool, an image generating device disposed in the housing and positioned to generate an image of the robotic tool received through the aperture of the housing, wherein the image generating device generates an image signal representing the image of the robotic tool, a light source disposed in the housing to backlight the robotic tool received through the aperture of the housing, and a processor responsive to the image signal for calculating and monitoring a configuration of the robotic tool.Type: ApplicationFiled: August 2, 2010Publication date: February 3, 2011Inventors: Thomas Nemmers, Donald E. Jenkins, Terry L. Tupper
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Publication number: 20100312391Abstract: A lead-through teaching device for an industrial robot is calibrated by moving the device to each of a predetermined number of reference poses. A controller responds to a signal from the device induced by gravity at each of the reference poses to calibrate the device to a predetermined coordinate frame. If necessary, a removable weight can be mounted to the device. The robot can hold either the tool that is to perform work on a workpiece or the workpiece. In those applications where the tool has a removable component, the lead-through teaching device can replace the removable component during its calibration to the predetermined coordinate frame.Type: ApplicationFiled: June 5, 2009Publication date: December 9, 2010Applicant: ABB Research Ltd.Inventors: Sangeun Choi, Thomas A. Fuhlbrigge, William Eakins, Gregory Rossano
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Patent number: 7810697Abstract: A robotic welding system is provided that includes multiple welding cells equidistantly spaced in a circular arrangement, multiple perimeter light curtains to provide safety protection around the welding cells, a turntable centrally located in the circular arrangement, and multiple welding robots attached to the turntable. The welding system further includes a first welding process and a second welding process whereby both the first welding process and the second welding process each include a primary welding operation and a secondary welding operation whereby the turntable rotates between the welding cells to perform the primary and secondary welding operations.Type: GrantFiled: August 22, 2008Date of Patent: October 12, 2010Assignee: Honda Motor Co., Ltd.Inventors: George Charbel, Yoshinori Ishihata, Julia Zoldak
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Patent number: 7802364Abstract: A vehicle framing system for framing an automotive vehicle body from a plurality of separate body components wherein the body components each include a reference surface. The system includes an assembly station having spaced-apart frame members positioned so that, when a vehicle carrier supporting the vehicle body components is positioned at the assembly station, the frame members extend along opposite sides of the vehicle carrier. At least two docking stations are secured to each frame member at predetermined locations. A robot mounts its associated tool arm with a docking station. At least one set of reference block and framing clamp is secured to each tool arm and these framing clamps maintain the reference surfaces of the vehicle body components against the reference blocks to hold the vehicle components at a predetermined position relative to each other.Type: GrantFiled: June 19, 2006Date of Patent: September 28, 2010Assignee: Valiant CorporationInventor: Dominique Baulier
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Publication number: 20100229671Abstract: The present invention provides an industrial robot, wherein a cable or the like spanned between an end effector and an upper arm has less bending due to a motion of a wrist portion, wherein the cable or the like does not twine around the upper arm, and wherein the cable or the like does not interfere with a peripheral device. A passage opening 25, through which a cable or the like 12 for supplying power, signals or materials to an end effector 9 attached to a rotating element 7 is drawn out of a body 6, is opened at a position, at which the body 6 intersects with a center of a first axis (an R-axis). The cable or the like 12 drawn out of the passage opening 25 is extended to the end effector 9.Type: ApplicationFiled: May 24, 2010Publication date: September 16, 2010Applicant: Kabushiki Kaisha Yaskawa DenkiInventors: Kazuhiro HANIYA, Atsushi Ichibangase, Koichi Yamaguchi
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Patent number: 7755002Abstract: A panel gripping jig for gripping a panel, regardless of the size and shape of the panel, includes a welding unit for temporarily holding the panel. A separation unit releases the coupling state of the panel and the welding unit. A mounting arm has the welding unit mounted thereon, moves the welding unit in a longitudinal direction thereof, and has a connection part to connect the mounting arm to a working robot. A displacement unit adjusts the position of the welding unit on the mounting arm. A control board outputs control signals to operate the welding unit, the separation unit, and the displacement unit according to a user input.Type: GrantFiled: December 26, 2006Date of Patent: July 13, 2010Assignee: Kia Motors CorporationInventor: Jae-Ho Jeong
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Publication number: 20100174395Abstract: A method of testing a physical manufacturing automation system for manufactured work pieces is provided via a testing system and includes connecting a computer-simulated manufacturing automation system to a controller of the physical manufacturing automation system, wherein the computer-simulated manufacturing automation system is configured to represent a portion of the physical manufacturing automation system, including a simulated work piece. The method then includes concurrently running the physical manufacturing automation system and the computer-simulated manufacturing automation system via the controller, with the physical automation system running in the absence of the physical work pieces.Type: ApplicationFiled: January 6, 2009Publication date: July 8, 2010Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: Fangming Gu, Chengyin Yuan, Stephan R. Biller
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Patent number: 7748593Abstract: A friction stir welding apparatus and a method of operating the friction stir welding apparatus are disclosed. The friction stir welding apparatus includes a rotary tool whose extremity constitutes a probe, a retaining arm which supports the rotary tool, and a roller provided at a position of the retaining arm opposite the rotary tool. The method includes adjusting the retaining arm so as to position workpieces between the rotary tool and the roller while adjusting the roller to turn in a direction where a joint line of the workpieces extends, rotating the rotary tool and lowering the probe until the probe presses the workpieces, gradually inserting the probe into the joint line, and moving the probe along the joint line.Type: GrantFiled: January 31, 2007Date of Patent: July 6, 2010Assignee: Honda Motor Co., Ltd.Inventors: Mitsuru Sayama, Tetsuya Miyahara, Fumiaki Fukuchi
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Publication number: 20100152870Abstract: The invention relates to a method for controlling robots for welding three-dimensional workpieces, comprising the following steps: positioning and tacking profiles to a plate in order to form the workpiece to be welded, depicting the workpiece by means of a three-dimensional imaging system in the form of three-dimensional pixels, determining the geometric data of the plate and profiles, including the allocation of cutouts and final cutting shapes from the three-dimensional pixels, determining the weld seam data from the geometric data while considering the profile placement lines and the contact lines of profiles, allocating the weld seam data to parameterizable specifications for the weld plan into stored predefined movement patterns of the robot, and into commands for the control of the welding process.Type: ApplicationFiled: February 19, 2008Publication date: June 17, 2010Applicants: FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V., UNIVERSITAET ROSTOCKInventors: Martin Christoph Wanner, Alexander Zych, Uwe Pfletscher
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Patent number: 7738996Abstract: A method for joining together at least two sheets with a tool controlled by an industrial robot and including a first arm and a second arm that are mutually movable in relation to each other. An actual position of the sheets is detected by bringing one of the arms to sense the actual position of the sheets. The distance between an ideal position and the actual position is calculated and the actual position of the tool is moved the calculated distance, whereafter the sheets are joined together.Type: GrantFiled: June 30, 2004Date of Patent: June 15, 2010Assignee: ABB ABInventor: Colin Luthardt
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Patent number: 7734358Abstract: A data processing apparatus for processing data described in a welding operation program of an arc welding robot system.Type: GrantFiled: July 21, 2005Date of Patent: June 8, 2010Assignee: Fanuc LtdInventors: Atsushi Watanabe, Yoshiharu Nagatsuka, Toshiya Takeda
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Publication number: 20100114338Abstract: A system and method for multi-goal path planning of welding robots with automatic sequencing. Input parameters associated with a number of goal points are obtained. The robot is moved through the multiple goal points based on the obtained inputs. One or more allowed cyclic paths are identified based on the obtained inputs. Weights are assigned to pre-defined attributes for path segments for each of the allowed cyclic paths. A cumulative score based on the values and assigned weights of the pre-defined attributes is calculated. An optimal path for the movement of robot across the goal points is identified based on the cumulative score.Type: ApplicationFiled: October 31, 2008Publication date: May 6, 2010Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: SANDIPAN BANDYOPADHYAY, ASHISH GUPTA
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Publication number: 20100106285Abstract: A system and method for the welding of drill bits using an automated robot or robots.Type: ApplicationFiled: October 22, 2009Publication date: April 29, 2010Inventor: Alan J. Massey
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Publication number: 20100065337Abstract: The present invention relates to a system and method for automated or “robotic” application of hardfacing to the surface of a steel-toothed cutter of a rock bit. In particular, the system incorporates a grounded adapter plate and chuck mounted to a robotic arm for grasping and manipulating a rock bit cutter beneath an electrical or photonic energy welding source, such as a plasma arc welding torch manipulated by a positioner. In this configuration, the torch is positioned substantially vertically and oscillated along a horizontal axis as the cutter is manipulated relative along a target path for the distribution of hardfacing. Moving the cutter beneath the torch allows more areas of more teeth to be overlayed, and allows superior placement for operational feedback, such as automatic positioning and parameter correction. In the preferred embodiment, sensors provide data to the control system for identification, positioning, welding program selection, and welding program correction.Type: ApplicationFiled: September 18, 2009Publication date: March 18, 2010Applicant: BAKER HUGHES INCORPORATEDInventors: David K. Luce, Alan J. Massey, Kenneth E. Gilmore, Keith L. Nehring
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Patent number: 7664570Abstract: The safety in robotic operations is enhanced and the floor space in a factory or the like is effectively utilized. A virtual safety barrier 50 including the trajectory of movement of a work or tool 7 mounted on a wrist 5 of a robot 1 in operation is defined in a memory. At least two three-dimensional spatial regions S (S1 to S3) including a part of the robot including the work or tool are defined. Predicted positions of the defined three-dimensional spatial regions obtained by trajectory calculations are matched with the virtual safety barrier 50, and if the predicted position of any one of the defined three-dimensional spatial regions based on trajectory calculations is included in the virtual safety barrier 50, a control is effected to stop the movement of the robot arms 3 and 4.Type: GrantFiled: April 22, 2004Date of Patent: February 16, 2010Assignee: Toyota Jidosha Kabushiki KaishaInventors: Kazutsugu Suita, Morihiko Okura
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Patent number: 7650679Abstract: The invention concerns a method for handling at least one part in a station for fixing two parts one on the other, characterized in that it comprises the following steps: positioning the parts in a station using a support (4); starting the fixing operation; replacing the support with a gripping robot (6) when the fixing operation has progressed sufficiently to lock the relative positioning of the two parts; mounting new parts in the support when the replacement has been made; and after the parts have been fixed, removing the thus fixed parts from the station using the gripping robot.Type: GrantFiled: August 11, 2005Date of Patent: January 26, 2010Assignee: ABB FranceInventors: Daniel Bidaud, GĂ©rard Pinchon, Bernard Negre
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Patent number: 7610108Abstract: A method for providing independent static and dynamic models in a prediction, control and optimization environment utilizes an independent static model (20) and an independent dynamic model (22). The static model (20) is a rigorous predictive model that is trained over a wide range of data, whereas the dynamic model (22) is trained over a narrow range of data. The gain K of the static model (20) is utilized to scale the gain k of the dynamic model (22). The forced dynamic portion of the model (22) referred to as the bi variables are scaled by the ratio of the gains K and k. The bi have a direct effect on the gain of a dynamic model (22). This is facilitated by a coefficient modification block (40). Thereafter, the difference between the new value input to the static model (20) and the prior steady-state value is utilized as an input to the dynamic model (22). The predicted dynamic output is then summed with the previous steady-state value to provide a predicted value Y.Type: GrantFiled: February 21, 2006Date of Patent: October 27, 2009Assignee: Rockwell Automation Technologies, Inc.Inventors: Eugene Boe, Stephen Piche, Gregory D. Martin
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Patent number: 7605347Abstract: The control system includes a welding robot which moves a welding torch along a work for welding the work. A robot controller controls driving of the welding robot. A laser sensor head detects a shape change in the work during welding by the welding torch, and a personal computer obtains instruction information for the welding robot in accordance with the shape change, based on a result of detection by the laser sensor head. The robot controller moves the welding torch by controlling the driving of the working robot, based on the instruction information obtained by the personal computer.Type: GrantFiled: February 5, 2004Date of Patent: October 20, 2009Assignee: Honda Motor Co., Ltd.Inventors: Akinobu Izawa, Tetsuo Era, Koji Ueda, Takeshi Yamagami
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Publication number: 20090234488Abstract: A method and apparatus for managing the delivery of component parts and tooling to a robotic welding assembly positioned on a motor vehicle body assembly line. Automatic guided vehicles deliver component parts from a source of parts to a parts staging area on the robotic welding assembly including a substage awaiting area, a substage in-use area and a substage empty area, and further automatic guided vehicles deliver tooling from a tooling management area to the robotic welding assembly whereafter the tooling, upon model changeover, is moved to a tooling use area proximate the assembly line whereafter, upon further model changeover, the tooling is removed from the tooling use area and loaded onto an automatic guided vehicle for return to the tooling management area.Type: ApplicationFiled: October 31, 2008Publication date: September 17, 2009Applicant: COMAU, INC.Inventor: Velibor Kilibarda
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Patent number: 7574282Abstract: The present disclosure relates to an arrangement and an electronic navigational control system for a self-propelling device (5), preferably a lawn-mowing robot. The system comprises at lease one navigational control system (3) connected to at least one signal generator (1) and a sensing unit arranged at the self-propelling device (5). The sensing unit senses at least one, in the air medium propagating, time and space varying magnetic field, at least transmitted via the navigational control station (3) and in turn retransmits at least one signal processed by the unit to at least one driving source which contributes to the device's movements across the surface. The system comprises structure by which the signal generator (1) sends a current through the navigational control station (3), the current generating the time and space varying magnetic field, whereby the sensing unit comprises structure by which the device (5) is maneuvered based on the properties of the sensed magnetic field.Type: GrantFiled: June 3, 2003Date of Patent: August 11, 2009Assignee: Husqvarna ABInventors: Ulf Petersson, Bengt-Allan Bergvall
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Patent number: 7571025Abstract: A method for controlling a plurality of manipulators, such as multiaxial or multiaxle industrial robots. At least one manipulator functions as the reference manipulator and is moved in a plurality of preset poses within its working area at which internal position values are determined as first desired poses. For each desired pose, subsequently a first actual pose of the reference manipulator is determined by an external measuring system. Subsequently at least one further manipulator moves up to specific poses of the reference manipulator as second desired poses and for each of these poses an actual pose of the further manipulator is determined by an external measuring system. On the basis of actual-desired deviations between the thus determined desired and actual poses of the two manipulators, subsequently a parameter model for the further manipulator is established and with it it is possible to compensate simultaneously both its own errors and those of the reference manipulator.Type: GrantFiled: June 1, 2005Date of Patent: August 4, 2009Assignee: KUKA Roboter GmbHInventor: Rainer Bischoff
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Patent number: 7556557Abstract: A welding robot (1) comprising a stand (2) pivotally receiving a trunk-forming portion (3) having one end (5) of an articulated arm (6) pivotally mounted thereon, the arm having an opposite end (7) provided with a clamp (8) fitted with welding electrodes, the robot including an electrode grinder (9) mounted on a portion (3) of the robot that is situated in a zone that is accessible to the clamp.Type: GrantFiled: October 11, 2004Date of Patent: July 7, 2009Assignee: ABB MCInventor: Hervé Rebiere
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Publication number: 20090118864Abstract: Disclosed is a method and system for finding a relationship between a tool-frame of a tool attached at a wrist of a robot and robot kinematics of the robot using an external camera. The position and orientation of the wrist of the robot define a wrist-frame for the robot that is known. The relationship of the tool-frame and/or the Tool Center Point (TCP) of the tool is initially unknown. For an embodiment, the camera captures an image of the tool. An appropriate point on the image is designated as the TCP of the tool. The robot is moved such that the wrist is placed into a plurality of poses. Each pose of the plurality of poses is constrained such that the TCP point on the image falls within a specified geometric constraint (e.g. a point or a line). A TCP of the tool relative to the wrist frame of the robot is calculated as a function of the specified geometric constraint and as a function of the position and orientation of the wrist for each pose of the plurality of poses.Type: ApplicationFiled: November 3, 2008Publication date: May 7, 2009Inventors: Bryce Eldridge, Steven G. Carey, Lance F. Guymon
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Publication number: 20090114053Abstract: An arm part of a manipulator of an industrial robot has at each end thereof a connector for connecting the arm part to a gear and a stiffener for stiffening the end region of the arm part. At least one aperture is arranged in a hollow structure of the stiffener for providing access to connecting members.Type: ApplicationFiled: October 23, 2006Publication date: May 7, 2009Applicant: ABB ABInventors: Pierre Mikaelsson, Bo Toresson, Magnus Hellberg, Michael Fors, Mats Thulin
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Publication number: 20090069936Abstract: A method of an industrial robot including a control unit and a manipulator including a tool including a defined tool center point and a device for determining a distance error between an inaccurately programmed position for a spot on a surface of a work piece and a corresponding actual position.Type: ApplicationFiled: February 7, 2005Publication date: March 12, 2009Applicant: ABB ABInventors: Sonke Kock, Colin Luthardt, Christian H. Muller, Ake Olofsson
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Publication number: 20090018690Abstract: The invention relates to a method of driving a workstation (1) comprising operational units (2, 3) linked to a drive automaton (7) executing a drive program, the drive program comprising for each operational unit at least one sub-part defining a plurality of strings of actions as a function of synchronization states, the drive method comprising a phase of configuration and a phase of execution of the drive program, the configuration phase comprising the steps of selecting the units to be implemented, of parametrizing the corresponding sub-parts by selecting the string of actions to be carried out and the associated synchronization states, the execution phase comprising the step of executing the drive program thus configured. The subject matter of the invention is also a workstation allowing the implementation of this method.Type: ApplicationFiled: January 30, 2007Publication date: January 15, 2009Applicant: ABB FRANCEInventor: Bernard Negre
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Patent number: 7462803Abstract: A switch-off box for a robot system has a two-part housing and a coupling device resiliently mounted in the housing and connected to a torch body and a hose pack or to a torch handle connected with the hose pack, and having a supporting surface for punctual contact on the housing. There are contacting or switching elements connected to the coupling device. Two oppositely located openings are provided in the housing for connection of the coupling device to the torch body and for connection of the coupling device to the hose pack or the torch handle. The supporting surface is connected with the contacting or switching elements so that a respective contacting or switching element will be activated or deactivated by lifting of the supporting surface from the housing, and a signal will be transmitted from the contacting or switching element to an interfaced control device, or the robot system.Type: GrantFiled: October 6, 2003Date of Patent: December 9, 2008Assignee: Fronius International GmbHInventors: Manfred Hubinger, Georg Binder, Helmut Wimroither