Work Grasping Patents (Class 72/405.09)
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Patent number: 11273482Abstract: This transfer device is a transfer device which transfers an object to be transferred and includes a pivoting arm supported by a frame and configured to be rotatably driven around a pivot axis, a main arm which is rotatably connected to the pivoting arm and to which a support part which supports the object to be transferred is connected at a distal end portion, and an inclination adjustment part which is slidably connected to the main arm in a longitudinal direction of the main arm and has a parallel link mechanism to adjust an inclination of the main arm.Type: GrantFiled: April 24, 2018Date of Patent: March 15, 2022Assignee: IHI LOGISTICS & MACHINERY CORPORATIONInventors: Yuuji Utsumi, Yasushi Dodo
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Patent number: 9764373Abstract: It is a subject to provide a workpiece conveying device capable of linearly conveying a workpiece with a light-weight and simple configuration. The present invention is a workpiece conveying device 100 for conveying a workpiece W, the workpiece conveying device 100 comprising a main body portion 10; a rail portion 1 mounted to an upper portion of the main body portion 10; a guide portion 1a slidable along the rail portion 1; an arm 3 in which a first pivotally attaching portion 3b at the upper end thereof is pivotally attached to the guide portion 1a; a holding means 4 which is mounted to a second shall 3a at a lower end of the arm 3 and which can hold the workpiece W; an auxiliary arm 20 mounted to a first shaft 2b of the main body portion 10 to be rotatable; a slider portion 2a slidable along the auxiliary arm 20; and servomotors for driving the auxiliary arm 20, wherein a second pivotally attaching portion 3c at approximately a center of the arm 3 is pivotally attached to the slider portion 2a.Type: GrantFiled: October 23, 2013Date of Patent: September 19, 2017Assignee: HITACHI ZOSEN FUKUI CORPORATIONInventor: Syoichiro Fujii
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Patent number: 8925363Abstract: A split idle station assembly for a transfer press assembly includes a track assembly, a first base assembly slidably connected to the track assembly and a second base assembly slidably connected to the track assembly. The first and second base assemblies have a support configuration with the first base assembly adjacent the second base assembly forming a work piece support assembly for supporting a work piece thereon between work stations of the transfer press assembly. The first and second base assemblies have a split configuration where the first base assembly is moved apart from the second base assembly along the track assembly.Type: GrantFiled: October 17, 2012Date of Patent: January 6, 2015Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.Inventor: Thoney R. Charles
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Patent number: 8584502Abstract: A forming device for cup-shaped hollow bodies (7) having a machine frame (2), a drive device (15), a workpiece rotary table (3) and having a tool holder (4) for accommodating processing tools (10), wherein the workpiece rotary table (3) and the tool holder (4) face one another and can be turned about a rotational axis (5) in relation to one another and can be linearly moved in relation to one another along the rotational axis (5), wherein the drive device (15) is designed for providing a rotary step movement and a cyclical linear movement between workpiece rotary table (3) and tool holder (4), in order to enable the hollow bodies (7) to be formed by means of the processing tools (10) in a plurality of consecutive processing steps, and wherein the workpiece holder (6) has a recess (16) for accommodating a hollow body (7) and a wall section (42), which limits the recess (16) in certain areas, has an adjustable geometry, which is designed to narrow the cross-section of the recess (16), in order to enable the holType: GrantFiled: March 8, 2011Date of Patent: November 19, 2013Assignee: Hinterkopf GmbHInventors: Helmut Aichele, Josef Schulz, Alexander Traxler
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Patent number: 8561450Abstract: A system for annealing a formable panel includes a stamping press configured to pre-form the panel using a first die and a second die. The system also includes a transfer device configured to engage the pre-formed panel and transfer the panel from the stamping press. The transfer device includes a heating element configured to anneal the pre-formed panel. The heating element anneals the pre-formed panel in the stamping press after the first die is disengaged from the panel and while the panel is being supported by the second die. A method of processing a formable panel and a method of processing a pre-formed panel in a multi-stage stamping operation, each using the system, are also disclosed.Type: GrantFiled: March 11, 2011Date of Patent: October 22, 2013Assignee: GM Global Technology Operations LLCInventors: Theresa M. Lee, John E. Carsley
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Patent number: 8522679Abstract: A press with gripper rails for grasping and relocating workpieces onto a work table, the gripper rails being movable in a horizontal plane and vertically by a transfer device. The gripper rails are connected to the respective parts of the transfer device by gripper rail couplings, a locking mechanism with a tie rod being provided, which locks or frees the gripper rail coupling. To actuate the locking mechanism, an actuating element is provided which displaces the tie rod between a holding position and a releasing position and which can be actuated by the gripper rail coupling being lowered or raised. Furthermore, the locking mechanism has a spring element which holds the tie rod in the holding position. Finally, the locking mechanism has a latching mechanism with a detent, which fixes the tie rod in the releasing position and which is freed automatically when the gripper rail coupling is being coupled.Type: GrantFiled: January 22, 2009Date of Patent: September 3, 2013Assignee: Erdrich Beteiligungs GmbHInventors: Uwe Zeibig, Klemens Nock
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Patent number: 8272244Abstract: The invention describes an apparatus for stamping can lids or the like, having a bridge (10) supported on a frame and carrying stamping tools (1) actuated vertically in a continuously repeating manner, having a longitudinal conveying device (30) gradually transporting metal sheets (11, 12) under said tools (1) in each case with the latter opened, and having a transverse conveying device (20, 40) laterally displacing to a limited extent the metal sheet (11, 12) moving or moved longitudinally in each case, wherein a separately controllable transverse conveying device (20, 40) is arranged in a stationary position in each case on the feed and discharge side approximately symmetrically to the tools (1) close in front of and behind the latter, said transverse conveying device (20, 40) in each case carrying a driving roller pair (31, 32; 51, 52) as the longitudinal conveying device (30, 50), which delivers the metal sheet (11, 12) in a controlled clamping manner or releases it in a controlled manner.Type: GrantFiled: March 22, 2007Date of Patent: September 25, 2012Inventor: Frank Hoffman
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Patent number: 8113029Abstract: The invention relates a drop forging method by means of a forging device provided with a hammer and a forging die, wherein a part placed in the forging die is shaped with a hammer blow, several engravings are formed in the die, a blank is initially inserted into the first engraving and said blank is moved along the other engravings to the last engraving, and then said blank picked up during shaping by a forging gripper. In order to obtain an optimum operating mode, the invention is characterized in that the part is received in a plurality of engravings with each hammer blow. In order to obtain a symmetrical distribution of the hammer load between occupied and non-occupied engravings, the parts are gripped respectively during shaping by the forging grippers.Type: GrantFiled: May 31, 2006Date of Patent: February 14, 2012Assignee: KNIPEX-Werk C. Gustav Putsch KGInventor: Wolfgang Lorbach
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Patent number: 8074484Abstract: The invention relates to a manipulation device (3) for manipulating a workpiece (4) on a bending press (2), comprising multiple successive moving elements (17), in particular articulated arms (18), connected to one another via articulated joints (19), wherein one moving element (22) has a rotary head (23) which is rotatable about a rotational axis (24) which at least approximately coincides with a center axis (25) of the moving element (22), and comprising a gripping device (27) connected thereto having a gripping zone (34), formed by one or more gripping elements (32), by means of which the workpiece (4) may be held.Type: GrantFiled: October 22, 2007Date of Patent: December 13, 2011Assignee: Trumpf Maschinen Austria GmbH & Co. KGInventors: Thomas Denkmeier, Bernhard Fischereder
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Patent number: 7971468Abstract: A transfer assembly (22) for moving a work-piece (26) between stations of a hydroforming and/or hydrotrimming assembly. The transfer assembly (22) includes left and right posts (40, 42) spaced from and parallel to each other and extending vertically. A left top arm (56) and a left bottom arm (58) and a right top arm (62) and a right bottom arm (64) extend in spaced and parallel relationship with each other transversely to the posts (40, 42) to distal ends (60, 84). An upper rail (80) extends between the distal ends (60) of the top arms (56, 62) and a lower rail (82) extends between the distal ends (60) of the bottom arms (58, 64). The rails (80, 82) each include a plurality of part grabbers (86, 88) for engaging the work-piece (26). A transfer module interconnects each arm with the associated post for moving the arms (56, 58, 62, 64) vertically up and down and for moving the arms (56, 58, 62, 64) in and out.Type: GrantFiled: July 23, 2008Date of Patent: July 5, 2011Assignee: HMS Products Co.Inventors: Glen Coalson, David A. Sofy
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Patent number: 7841274Abstract: In a press installation including a press with at least one press station and a multi-station press between arranged at a distance from each other which is a non-integral multiple of the press station distance of the multi-stage press. The installation also includes a transport arrangement for moving workpieces from press station to press-station concurrently by a step corresponding to the distance between the press station of the multi-station press. To compensate for an increased distance between the press station of the press and the adjacent press station of the multi-station press a deposit stage is arranged between the press and the multi-station press and includes a movable support an which the workpiece removed from the press can be deposited and from which, after appropriate movement of the support in the transport direction, it can be picked up by the transport arrangement for placement in the adjacent press station of the multi-stage press.Type: GrantFiled: March 14, 2008Date of Patent: November 30, 2010Assignee: Schuler Pressen GmbH & Co. KGInventors: Dirk Haller, Martin Schmeink, Andreas Lauke
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Patent number: 7802460Abstract: A fixed-side connecting portion 151 is provided on an end of the fixed bar 141 while a movable-side connecting portion 152 is provided on an end of the movable bar 142. An air clamp 16 is housed within the fixed bar 141. By pneumatically driving the air clamp 16 while the movable-side connecting portion 152 is superimposed on an upper side of the fixed-side connecting portion 151, a clamp member 165 protrudes from a case 161 to be downwardly rotated and holds the movable-side connecting portion 152 against the fixed-side connecting portion 151. Since the clamp member 165 is pneumatically driven, a die replacement time can be shortened. In addition, since the air clamp 16 is housed within the fixed bar 141, the size of a transfer feeder 41 can be reduced.Type: GrantFiled: February 17, 2006Date of Patent: September 28, 2010Assignee: Komatsu Industries Corp.Inventors: Hidekazu Tokunaga, Masaaki Kashiwa
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Patent number: 7721584Abstract: A plurality of workpiece holders 52 are attached on a slide plate 71 on a bar 14 and connected to a movable plate 72 by a plate connecting portion 73. The plate connecting portion 73 includes an engaging portion 731 that is provided on the movable plate 72 and an engaged portion 732 that is provided on the slide plate 71 and engaged with the engaging portion 731. By moving a fixed bar 141 downward relative to a movable bar 142, the movable bar 142 is detached and the engagement of the engaging portion 731 with the engaged portion 732 is released. Since both of the movable bar 142 and the slide plate 71 can be detached by a single downward movement of the fixed bar 141, no actuator is required, thereby simplifying the structure.Type: GrantFiled: April 10, 2006Date of Patent: May 25, 2010Assignee: Komatsu Industries Corp.Inventors: Hidekazu Tokunaga, Masaaki Kashiwa
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Publication number: 20090107206Abstract: A mechanical arrangement for processing sheet metal includes a sheet metal processing device, a transport device configured to position a sheet metal workpiece relative to the sheet metal processing device, the transport device including at least one workpiece carrier that is movable along a transport path that extends along a first transport line and a second transport line, and at least two X-guides and at least two Y-guides, the X-guides arranged parallel with the first transport line and the Y-guides arranged parallel with the second transport line. The at least two X-guides and the at least two Y-guides are configured to be coupled to each other by a transfer device to form a transport course, the workpiece carrier circulates along the X-guides and the Y-guides, and the transfer device is configured to move the workpiece carrier from one of the X-guides to one of the Y-guides.Type: ApplicationFiled: October 17, 2008Publication date: April 30, 2009Applicants: TRUMPF SACHSEN GMBH, TRUMPF WERKZEUGMASCHINEN GMBH + CO. KGInventors: Harry Thonig, Klaus Vogel, Norbert Gruhl, Michael Haecker, Wolf Klaiber, Eberhard Wahl, Utz Schorn, Martin Petera, Karel Vincke
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Publication number: 20090064753Abstract: A plurality of workpiece holders 52 are attached on a slide plate 71 on a bar 14 and connected to a movable plate 72 by a plate connecting portion 73. The plate connecting portion 73 includes an engaging portion 731 that is provided on the movable plate 72 and an engaged portion 732 that is provided on the slide plate 71 and engaged with the engaging portion 731. By moving a fixed bar 141 downward relative to a movable bar 142, the movable bar 142 is detached and the engagement of the engaging portion 731 with the engaged portion 732 is released. Since both of the movable bar 142 and the slide plate 71 can be detached by a single downward movement of the fixed bar 141, no actuator is required, thereby simplifying the structure.Type: ApplicationFiled: April 10, 2006Publication date: March 12, 2009Inventors: Hidekazu Tokunaga, Masaaki Kashiwa
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Patent number: 7484922Abstract: The invention relates to an articulated arm transport device which is especially provided for the automation of large component transfer presses. Said articulated arm transport device is characterized by a kinematics and design that do not require any additional clearance between the press rams and pillars and that permit an introduction or extraction of workpieces even with a small clearance between the upper and lower tool. The articulated arm transport device is mounted above the workpiece transport plane on the press stands. The articulated arm part linked with the cross-member is shorter than the articulated arm part and makes a pivoting movement substantially above the common pivot. A lifting and/or pivoting movement can be carried out by means of controlled lift drives that are functionally linked with transmission means.Type: GrantFiled: November 11, 2004Date of Patent: February 3, 2009Assignee: Mueller Weingarten AGInventors: Erich Harsch, Rainer Reichenbach
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Publication number: 20080264274Abstract: In a press installation including a press with at least one press station and a multi-station press between arranged at a distance from each other which is a non-integral multiple of the press station distance of the multi-stage press. The installation also includes a transport arrangement for moving workpieces from press station to press-station concurrently by a step corresponding to the distance between the press station of the multi-station press. To compensate for an increased distance between the press station of the press and the adjacent press station of the multi-station press a deposit stage is arranged between the press and the multi-station press and includes a movable support an which the workpiece removed from the press can be deposited and from which, after appropriate movement of the support in the transport direction, it can be picked up by the transport arrangement for placement in the adjacent press station of the multi-stage press.Type: ApplicationFiled: March 14, 2008Publication date: October 30, 2008Inventors: Dirk Haller, Martin Schmeink, Andreas Lauke
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Publication number: 20080250840Abstract: A mechanism for forming thin metallic skin enclosures from blanks. The apparatus includes a forming assembly including a plurality of die stations. The stations are stepped farther away from an axis along which blanks being processed are positioned at a plurality of die stations. Grippers spaced from each other along the axis and away from the axis at distances substantially the same as die stations are carried by the transfer assembly. A pneumatic actuator can be used to move the transfer assembly reciprocally in directions generally parallel to the axis between first and second axial positions. In the first position the grippers are registered with corresponding die stations. In a second position the grippers are registered with die stations adjacent the ones with which they are registered when the transfer assembly is in its first position. A ram is provided to move the transfer assembly between first and second stepped positions relative to the axis.Type: ApplicationFiled: April 11, 2007Publication date: October 16, 2008Inventors: Thomas J. Nelson, Matthew Klun
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Patent number: 7316149Abstract: The present invention provides a work transfer device for transferring a work between adjoining pressing machines including a work holder (30) for holding a work W, a carrier (23) provided between the adjoining pressing machines (10) and capable of being linearly moved in a direction orthogonal to a work transfer direction with a driving mechanism, and a swinging body (71) with a swinging center shaft thereof provided on this carrier (23) and capable of being driven for swinging by a swinging mechanism (84) along the work transfer direction, and the work holder (30) is provided in the swinging body (71). Because of this configuration, it is not necessary to secure a trajectory for swiveling like in a robot arm type of transfer device, not to extend a lift beam up to a position close to a slide like in the feeder type of transfer device, so that it is not necessary to widen a clearance between uprights (12) and a tandem press (1) can be size-reduced as a whole.Type: GrantFiled: January 25, 2005Date of Patent: January 8, 2008Assignee: Komatsu Ltd.Inventors: Kiyokazu Baba, Kazuhiko Shiroza, Takashi Moriyasu, Shuuji Mizuguchi
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Publication number: 20070277582Abstract: A workpiece gripper arrangement for the automatization of presses, including a transfer arrangement for transferring components between workstations, the transfer arrangement includes a girder or carrier with gripper means for holding the components and the gripper means is supported via coupling parts of which one is connected to the girder and the other to the gripper means and a mechanical locking structure is provided which is operable by relative movement of the coupling arrangement with respect to a support frame on which the gripper means can be deposited.Type: ApplicationFiled: May 19, 2007Publication date: December 6, 2007Inventor: Andreas Dangelmayr
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Patent number: 7278288Abstract: Aspects of the invention relate to a method and a device for transferring workpieces. In the method, at least one first handling device positions and/or securely holds at least one workpiece in a working region of a shaping machine, and, in at least one shaping process in the shaping machine, the at least one first handling device subsequently transfers the workpiece to at least one second handling device. The at least one workpiece is then aligned in a predetermined (or predeterminable) position when it is received by the at least one second handling device with the assistance of the at least one positioning means and a positioning aid.Type: GrantFiled: July 21, 2005Date of Patent: October 9, 2007Assignee: Langenstein & Schemann GmbHInventor: Frank Reissenweber
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Patent number: 7237479Abstract: A device for successively transporting sheets in a platen press includes gripper bars with respective ends fixedly attached to two flexible of endless loop elements. Each loop element is engaged respectively with an intermittent drive wheel and at least one free wheel. A rectangular working chase and a movable platen arranged on both sides of the path of the grippers of the said bar. Nozzles are connected to a compressed air supply, for directing air jets towards the movable platen during a stopping phase of the gripper bars, in order to successively stop the sheets between the working chase and the movable platen. The nozzles are located below the transverse rear edge of the working chase.Type: GrantFiled: April 28, 2005Date of Patent: July 3, 2007Assignee: Bobst S.A.Inventor: Jean-Francois Pollien
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Patent number: 7036350Abstract: A device for producing cut-out and/or shaped workpieces, especially for producing rotors and stators of a generator or electric motor, with at least one cutting device and/or at least one shaping device, at least one gripping device for picking up and setting down raw material and/or finished workpieces and at least one transfer device, at which at least one gripping device can travel and be driven.Type: GrantFiled: September 4, 2003Date of Patent: May 2, 2006Assignee: Schuler Pressen GmbH & Co.Inventors: Hans-Martin Dommer, Helmut Elsaesser, Gerhard Pick, Wolfgang Muehlhaeuser, Joerg Voegele
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Patent number: 7017383Abstract: A mounting and method for a multistation stamping press part transfer system in which transfer drive modules are mounted to pivotal supports so that rail-gripper assemblies connected to pairs of modules can be oriented to transfer blanks/parts through the press in either of two orthogonal directions.Type: GrantFiled: April 27, 2004Date of Patent: March 28, 2006Inventor: Luciano Trindade de Sousa Monteiro
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Patent number: 6968725Abstract: The invention proposes a transporting apparatus for transporting single or double workpieces through processing stations of presses, in which apparatus up to 9 degrees of freedom are integrated in the transporting system. Necessary changes in position for, for example, feeding into dies can take place directly by way of the transporting apparatus. It is possible to dispense with intermediate set-down locations or orienting stations.Type: GrantFiled: January 24, 2001Date of Patent: November 29, 2005Assignee: Mueller Weingarten AGInventors: Erich Harsch, Rainer Reichenbach
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Patent number: 6799450Abstract: A method of stretch forming an aluminum metal sheet that includes the steps of placing an aluminum metal sheet in a hot forming tool, forming a shaped part at an elevated temperature, removing the hot shaped part from the forming tool, and thereafter transferring the hot shaped part to a cooling fixture. The transfer and removal steps are performed at a speed that is variable based on a correlation of the temperature and strength of the aluminum metal sheet and the speed at which the hot shaped part may be transferred without distortion of its shape due to inertia.Type: GrantFiled: October 11, 2002Date of Patent: October 5, 2004Assignee: General Motors CorporationInventors: Nelson T. Brinas, Edward Frank Ryntz
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Publication number: 20040187550Abstract: A workpiece transfer assembly (12, 112) moves workpieces through a press (10) and includes a pair of spaced pulleys (42) and an endless belt (43) entrained about the pulleys (43) and a clamp (46) connecting the belt (43) to a trolley (34, 134) for horizontally moving a pair of trolleys (34, 134) and the arms (24, 124) supported thereby. The clamp (46) is clamped to one reach of the endless belt (43) for moving back and forth along the between the pulleys (42). A biasing device (56) urges a male cam member (52) into driving engagement with a female cam member (54) to connect the belt (43) and the arms (24, 124) and allows the cam members (52 and 54) to react with one another in a camming fashion to move out of the driving engagement to allow the belt (43) to move without moving the arms (24, 124) in response to the predetermined force resisting movement of the arms (24, 124).Type: ApplicationFiled: March 27, 2003Publication date: September 30, 2004Inventor: Glen Coalson
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Patent number: 6792787Abstract: A workpiece transfer assembly (12, 112) moves workpieces through a press (10) and includes a pair of spaced pulleys (42) and an endless belt (43) entrained about the pulleys (42) and a clamp (46) connecting the belt (43) to a trolley (34, 134) for horizontally moving a pair of trolleys (34, 134) and the arms (24, 124) supported thereby. The clamp (46) is clamped to one reach of the endless belt (43) for moving back and forth along the between the pulleys (42). A biasing device (56) urges a male cam member (52) into driving engagement with a female cam member (54) to connect the belt (43) and the arms (24, 124) and allows the cam members (52 and 54) to react with one another in a camming fashion to move out of the driving engagement to allow the belt (43) to move without moving the arms (24, 124) in response to the predetermined force resisting movement of the arms (24, 124).Type: GrantFiled: March 27, 2003Date of Patent: September 21, 2004Assignee: HMS Products, Co.Inventor: Glen Coalson
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Publication number: 20040177669Abstract: There is provided a workpiece carrier apparatus for transfer press machine in which carrier motion for each press station can be individually set. A guide beam can be raised and lowered by a lifting device so that all levels can be adjusted to match the dies. A guide rail is attached to the guide beam, and carriers are fitted so as to be movable in the feed direction of a press line along the guide rail. A most upstream side carrier on the press line is moved in the feed direction by a first carrier mechanism, and the remaining carriers are connected together by connecting rods so as to be movable in the feed direction as one unit by a second carrier mechanism. Each of the carriers have a servo motor and the amount of raising and lowering of the cross bars can be individually set.Type: ApplicationFiled: September 16, 2003Publication date: September 16, 2004Inventors: Masaru Suzuki, Shigeki Narishma, Kohji Osada
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Patent number: 6742457Abstract: A transfer press having a plurality of slides, and comprising slide drives being drive sources provided every slide, and a control device for controlling the slide drives to synchronously drive and/or singly drive the slides individually.Type: GrantFiled: April 16, 2002Date of Patent: June 1, 2004Assignee: Komatsu Ltd.Inventor: Kazuhiko Shiroza
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Publication number: 20040074277Abstract: The invention relates to a method in a sheet metal working centre, wherein a sheet (3) secured to mounting means of a moving carriage arrangement (2) in connection with said sheet metal working centre is transferred in accordance with a predetermined program substantially in the orthogonal coordinates X,Y in the main plane of the sheet (3) in order to carry out machinings ax or the like directed to the sheet (3) by means of machining units or the like.Type: ApplicationFiled: May 2, 2003Publication date: April 22, 2004Inventors: Juha Makitalo, Kari Liinamaa
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Patent number: 6418611Abstract: An apparatus for serially making formed parts from a web of deformable material with a stud mounted therein having a plurality of progressive die forming stations for forming multiple parts from the web by advancing the web through each forming station. In one embodiment, the apparatus has feeding, driving and transfer mechanisms for controlling the feeding and insertion of studs at spaced locations into the web.Type: GrantFiled: June 16, 1998Date of Patent: July 16, 2002Assignee: GR Spring & Stamping, Inc.Inventors: Ronald E. Weber, Wade R. Pennington, Dennis M. Willyard, Jeffrey A. Lawrence
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Patent number: 6247578Abstract: In an apparatus for automatically transporting workpieces in a multi-stage forming machine, a tong casing (1) is fitted on a transverse transporting tube (2). The tong casing (1) comprises a tong-casing basic body (10) on which there are arranged exchangeable tong modules (12a, 12b, 12c) each with one set of tongs by means of which a workpiece (W2, W3) can be seized laterally from above. Each set of tongs is connected, via a coupling location (19), to associated transmission means which, are in operative connection with a control shaft (3), mounted rotatably in the transverse transporting tube (2), for controlling the opening and closing movements of the tongs. The operation of transporting, from one forming station (U1, U2, U3) to the adjacent forming station (U2, U3, U4), a workpiece (W2, W3) seized by tongs with pairs of interacting tong grippers (130, 140) and the operation of moving the tongs back take place by the transverse transporting tube (2) moving back and forth.Type: GrantFiled: January 15, 1999Date of Patent: June 19, 2001Assignee: Hatebur Unformmaschinen AGInventors: Ulrich Steinhauser, Stefan Stöckle, Christoph Pergher
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Patent number: 6223582Abstract: A transfer system, particularly for the transfer of workpieces in multi-station presses, includes several transfer modules, each of which has a workpiece holding device carried by at least one lever mechanism. Each lever mechanism transmits the adjusting movement of two mutually independent drives to the workpiece holding device. One of the drives is disposed in a stationary manner and the other drive is moved by the stationarily disposed drive.Type: GrantFiled: November 10, 1999Date of Patent: May 1, 2001Assignee: Schuler Pressen GmbH & Co.Inventors: Hans Hofele, Andreas Dangelmayr, Jürgen Eltze, Karl Thudium
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Patent number: 6192285Abstract: A controller for a work transfer system, capable of performing precise positioning of feed bars during sole driving of the transfer system and simplified in structure to contribute to savings in installation space and cost. The controller has a cam angle detector mounted on a cam shaft for feed cams and controls servo motors for respective lift bars according to information which is related to cam angle of the feed cams detected by the cam angle detector and looked up in a motion table set by a transfer controlling PLC serving as a motion table setting means.Type: GrantFiled: October 26, 1998Date of Patent: February 20, 2001Assignee: Komatsu Ltd.Inventor: Yukiyoshi Takayama
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Patent number: 6182491Abstract: A tool mount for mounting tool assemblies on a transfer press, or other type of automated assembly line, includes a bayonet which can be selectively inserted into a receiver mounted on the transfer press rail. The receiver includes a generally tapered channel which receives a tapered portion of the bayonet. The receiver and the bayonet thereby form a dove tail type of junction. The direction of taper is oriented such that the bayonet must be inserted from the back end of the receiver and pushed forwardly to secure it therein. A lock selectively secures the bayonet within the receiver. The lock includes a latch that engages a first cam surface to push the bayonet inwardly into the receiver and thereby prevent it from being removed, while simultaneously insuring a tight fit between the receiver and the bayonet. The lock latch further engages a second cam surface of the bayonet when the bayonet is to be removed from the receiver.Type: GrantFiled: November 12, 1999Date of Patent: February 6, 2001Assignee: CPI Products, L.C.Inventors: Maurice Perlman, Don Hufford