Including Deforming Means Patents (Class 29/736)
  • Patent number: 5282309
    Abstract: A rotor assembly (10, 20) for use in a dynamoelectric machine such as an electric motor has counterweights (18, 28) installed on it to reduce vibrations when the machine is in use. Apparatus (30) is for attaching a counterweight to each end of the assembly to reduce machine vibrations when in use. The apparatus comprises a support (32) on which the rotor assembly and counterweights are installed. The counterweights are installed in a predetermined relationship with the assembly so when they are attached, an unbalanced rotor assembly is produced. The rotor assembly is mounted in a predetermined position on the support. The support is indexed from a first station (S1) at which the rotor assembly and counterweights are installed on the support to a second station (S2) at which the counterweights are attached to the respective ends of the assembly.
    Type: Grant
    Filed: November 25, 1991
    Date of Patent: February 1, 1994
    Assignee: Emerson Electric Co.
    Inventor: Larioux R. La Rue
  • Patent number: 5274907
    Abstract: Apparatus for forming a toroid coil on a toroidal body comprising a wire feeder for feeding the wire forward in the direction of its length toward the toroidal body. The wire is fed along a path which at the toroidal body is generally tangent to the surface of the toroidal body and nonparallel to the radial plane of the toroidal body. A die having a wire forming path defined therein constrains the wire to bend as it is fed forward into the convolutions of a helix extending through the opening in the toroidal body and advancing circumferentially around the toroidal body to form the toroid coil.
    Type: Grant
    Filed: May 23, 1990
    Date of Patent: January 4, 1994
    Assignee: Basler Electric Company
    Inventor: Edward A. Moorehead
  • Patent number: 5245748
    Abstract: Methods and apparatus are provided for connecting a lead wire extending from a coil portion wound on a pole of a stator core to one or more terminals mounted on the stator core, wherein the method includes the steps of: grasping a lead wire; disposing the lead wire adjacent at least a first terminal; partially and then fully engaging the lead wire with the terminal; repeating the steps of disposing and engaging the lead wire with later terminals, if any; and then cutting the lead wire. Apparatus is provided for performing the method steps for complex lead wire connection patterns.
    Type: Grant
    Filed: August 1, 1991
    Date of Patent: September 21, 1993
    Assignee: Axis U.S.A., Inc.
    Inventors: Sabatino Luciani, Antonio Lumini
  • Patent number: 5241486
    Abstract: Methods and apparatus for marking and identifying a commutator hook of an electric motor are provided. A preselected commutator hook is marked by deforming the hook while the armature is in a winding machine, with a known angular position. The marked hook is identified by apparatus which determines whether or not the hook has been deformed while in the winding machine, and thereby recognizing the hook.
    Type: Grant
    Filed: February 25, 1992
    Date of Patent: August 31, 1993
    Assignee: Axis U.S.A., Inc.
    Inventors: Sabatino Luciani, Massimo Lombardi
  • Patent number: 5237740
    Abstract: The present invention generally relates to a coil insertion device for inserting a stator coil into a slot defined within a stator core of an electric rotary machine and to an improvement in a mechanism for inserting a stator coil into a slot.
    Type: Grant
    Filed: August 29, 1991
    Date of Patent: August 24, 1993
    Assignee: Nippondenso Co., Ltd.
    Inventors: Mituyuki Hayashi, Tokusuke Nakamura, Takahiko Shimojyou, Yasushi Oohashi
  • Patent number: 5235738
    Abstract: A method and apparatus for shaping the winding end turns of a stator assembly wherein the outside diameter of the end turns is first engaged by a set of alternate segments in a circular array and is thereafter engaged by a set of intervening segments of the array while the first set remains engaged. The motion and configuration of the segments avoids the risk of pinching a wire of the winding by eliminating relative circumferential closing movement between adjacent segments. The inside diameter of the end turns is shaped by an expandable mandrel assembly that includes interengaged shoes that have a sliding movement in expansion and contraction that also avoids the risk of pinching strands of the winding.
    Type: Grant
    Filed: June 3, 1992
    Date of Patent: August 17, 1993
    Assignee: Pease Windamatic Systems, Inc.
    Inventor: Robert J. Eminger
  • Patent number: 5233751
    Abstract: Methods and apparatus are provided for generating and connecting an intermediate lead wire extending between multiple portions of a coil wound on a pole of a stator core to a slotted terminal mounted on the stator core. Such stator cores, wound by coil winding shuttles, are used in electric motors, generators and similar devices. An intermediate lead wire extending between multiple portions of a coil is first captured by a hook mechanism, aligned with a slotted terminal, and then inserted in the terminal by a wire insertion device. The wire is then held in engagement with the terminal while the next portion of the coil is begun, producing an intermediate lead wire connection wherein a first portion of the lead wire is engaged within a slot in the terminal and the portion extending from the terminal to the next coil portion is wrapped tightly against the exterior of the terminal, with no cutting of the intermediate lead wire required.
    Type: Grant
    Filed: December 17, 1991
    Date of Patent: August 10, 1993
    Assignee: Axis U.S.A., Inc.
    Inventors: Sabatino Luciani, Massimo Ponzio, Antonio Lumini
  • Patent number: 5218752
    Abstract: A device is provided for forming coils which are inserted into radially inwardly open slots of a stator or rotor plate pack of an electric machine. The device enables intermediate forming of coils disposed in specific slots in order to also allow insertion of the coils of a further winding in the same slots and thus allow free forming. The device comprises a holding device for the plate pack and a forming mandrel. The latter includes a plurality of radially extendable laminae distributed about the periphery thereof. Different groups of laminae can be extended by a predetermined radial path length by push rods which can be driven independently of one another in order to force outwardly, and form in certain slots, the coil strands that have been inserted into the slots. Further, forming rings which are axially movable relative to the plate pack are provided to enable forming of winding heads.
    Type: Grant
    Filed: August 7, 1992
    Date of Patent: June 15, 1993
    Assignee: STATOMAT Spezialmaschinen GmbH
    Inventors: Edgar Hensel, Edmund Gassner, Joachim Nasterlack, Gerhard Albert
  • Patent number: 5134769
    Abstract: An apparatus and method for performing and final forming the winding end turns of a stator. The apparatus includes an elongated arbor on the end of which includes a plurality of radially moveable blades and a cam. A pair of outer diameter jaws is positioned around the end turns whereby the arbor initially can move through the end turns to preform the end turns. After the arbor is moved into position, the end turns are final formed by reducing the volume of the end turn spaces defined by the outer diameter jaws. The coils are final formed by the movement of an end turn heights ring into the end turn spaces defined by the outer diameter jaws.
    Type: Grant
    Filed: July 24, 1991
    Date of Patent: August 4, 1992
    Assignee: Advanced Machine and Tool Corporation
    Inventor: Mark A. Scherer
  • Patent number: 5122975
    Abstract: Methods and apparatus for marking and identifying a commutator hook of an electric motor are povided. A preselected commutator hook is marked by deforming the hook while the armature is in a winding machine, with a known angular position. The marked hook is identified by apparatus which determines whether or not the hook has been deformed while in the winding machine, and thereby recognizing the hook.
    Type: Grant
    Filed: November 30, 1989
    Date of Patent: June 16, 1992
    Assignee: Axis USA, Inc.
    Inventors: Sabatino Luciani, Massimo Lombardi
  • Patent number: 5097591
    Abstract: A device for removing a winding of an electric linear motor which winding is arranged in downwardly open grooves of a bundle of laminations fastened to a support. The individual strands of the winding are held fast in the grooves on holders. The holders have feet with webs which extend out of the grooves, the feet engaging in mounted position in undercuts in the grooves. The device includes at least one removal device arranged on a vehicle which is moveable on the support, the device having at least one pressing tool and at least one pulling tool coupled with it. The pressing tool has two bevels extending in V-shape to each other which are intended to come against the webs of the feet, by which bevels, upon the downward movement of the removal device, every two webs present on opposite sides of the holder are pressed towards each other.
    Type: Grant
    Filed: July 19, 1991
    Date of Patent: March 24, 1992
    Assignee: Kabelmetal Electro Gesellschaft mit beschrankter Haftung
    Inventors: Manfred Wcislo, Otto Breitenbach
  • Patent number: 5090108
    Abstract: Connection of stator coil lead wires to terminals with channels is accomplished using an industrial robot and tooling for guiding the lead wires into the terminal channels and for crimping the lead wire to the terminals before the wires are severed. Also, lead wire placing assemblies are provided with hooks at each end of a stator being wound for holding the start wires away from the stator pole pieces.
    Type: Grant
    Filed: October 17, 1990
    Date of Patent: February 25, 1992
    Assignee: Globe Products Inc.
    Inventors: Alvin C. Banner, John W. Bradfute, Patrick A. Dolgas, Lawrence E. Newman
  • Patent number: 5090110
    Abstract: A method for manufacturing a stator for use in a rotating machine provided with a core main body having a plurality of teeth projecting from an outer circumferential side of the core main body and wound with a coil, and a ring member fitted on the outer circumferential portion thereof. The method includes the steps of: inserting a jig into an interior of the core main body; clamping a wind start portion of the coil on one portion of the jig, winding the coil between the teeth, and clamping wind terminating portion of the coil on the other portion of the jig; fitting the ring member over the outer circumferential portion of the core main body; mounting a terminal unit on the stator; winding the end of the coil, clamped on the jig, around respective pins of the terminal unit and soldering the ends of the coil onto the pins; and shaping configuration of the coil wound between the teeth.
    Type: Grant
    Filed: October 15, 1990
    Date of Patent: February 25, 1992
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Toshiichi Murakoshi, Hiroshi Kawazoe, Toshihiro Takahata, Shigeo Inaki, Tatsuo Yamashita, Yoshinori Doi
  • Patent number: 5090107
    Abstract: Connection of stator coil lead wires to terminals with channels is accomplished using an industrial robot and tooling for guiding the lead wires into the terminal channels and for protecting the terminals from being snagged by the wire or being bent by the pulling of the wire by the robot. During an early stage of movement of the robot to effect connection of a lead wire to a terminal, the tooling is partly retracted to expose part of the terminal in order to simplify the movements of the robot. The lead wires are cut and crimped by tabs on the terminals using the end effector of the robot.
    Type: Grant
    Filed: December 26, 1990
    Date of Patent: February 25, 1992
    Assignee: Globe Products Inc.
    Inventors: John M. Beakes, Howard S. Hunter
  • Patent number: 5065503
    Abstract: Methods and apparatus are provided for connecting a lead wire extending from a coil portion wound on a pole of a stator core to one or more terminals mounted on the stator core, wherein the method includes the steps of: grasping a lead wire; disposing the lead wire adjacent at least a first terminal; partially and then fully engaging the lead wire with the terminal; repeating the steps of disposing and engaging the lead wire with later terminals, if any; and then cutting the lead wire. Apparatus is provided for performing the method steps for complex lead wire connection patterns.
    Type: Grant
    Filed: August 1, 1990
    Date of Patent: November 19, 1991
    Assignee: Axis, U.S.A., Inc.
    Inventors: Sabatino Luciani, Antonio Lumini
  • Patent number: 5065499
    Abstract: A pallet system for supporting a workpiece (such as an electric motor stator or rotor) during processing of the workpiece includes a pallet member on which a workpiece holder can be removably placed. The workpiece holder may have multiple workpiece-engaging sites, each of which is adapted to hold a differently configured workpiece, and multiple pallet-engaging sites, each of which is associated with a respective one of the workpiece-engaging sites and any one of which can be used to engage the pallet so that the workpiece holder can hold a workpiece of the appropriate configuration at the associated workpiece-engaging site. Methods and apparatus for storing and manipulating the workpiece holders are also shown and described.
    Type: Grant
    Filed: October 1, 1990
    Date of Patent: November 19, 1991
    Assignee: Axis S.p.A.
    Inventors: Santandrea Luciano, Lombardi Massimo
  • Patent number: 5056212
    Abstract: An apparatus and method for preforming and final forming the winding end turns of a stator. The apparatus includes an elongated arbor whose end includes a plurality of radially moveable blades and a cam. A pair of outer diameter jaws is positioned around the end turns whereby the arbor initially can move through the end turns to preform the end turns. After the arbor is moved into position, the end turns are final formed by reducing the volume of the end turn spaces defined by the outer diameter jaws. The coils are final formed by the movement of the end turn height rings into the end turn spaces defined by the outer diameter jaws.
    Type: Grant
    Filed: September 20, 1990
    Date of Patent: October 15, 1991
    Assignee: Advanced Machine & Tool Corporation
    Inventor: Mark A. Scherer
  • Patent number: 5022139
    Abstract: A method for winding a stator that may be used for single-phase and three-phase motors. The stator windings are spread across several slots of the stator so that some of the slots receive winding portions of several phase windings. The windings are made by using a mandrel that has step-formed portions with a plurality of winding surfaces. Some of the winding surfaces lie in the same plane so as to permit the windings wound thereon to fit properly into the slots of the stator.
    Type: Grant
    Filed: July 6, 1990
    Date of Patent: June 11, 1991
    Assignee: Grundfos International A/S
    Inventor: Niels D. Jensen
  • Patent number: 5010639
    Abstract: A transfer and introduction tooling for transporting coils from a winding machine and for drawing the coils into a variety of stators of electric motors includes a set of carrier arrangements of differing diameters and a number of interchangeable parts forming a transfer tool, an introduction tool and a cover-strip magazine. Each carrier arrangement has a central opening and a plurality of identical receiving locations disposed about its periphery. The transfer tool is formed by combining a carrier arrangement with a plurality of transfer forks where each transfer fork has two spaced fork prongs and an extension which can be releasably fastened to the receiving locations of the carrier arrangements to form a transfer tool.
    Type: Grant
    Filed: April 14, 1989
    Date of Patent: April 30, 1991
    Inventor: Franz Veser
  • Patent number: 4984353
    Abstract: A production line capable of producing more than one variation of a particular type of electric motor component (e.g., more than one variation of armature or more than one variation of stator) is provided. The line includes at each workstation either a machine adjustable to the different variations to be produced, or more than one machine. Workpieces are carried down the line on coded pallets from which it can be determined automatically which variation it is, so that the workstation can be adjusted to perform the correct operation, or so that the pallet can be directed to the correct machine.
    Type: Grant
    Filed: November 20, 1989
    Date of Patent: January 15, 1991
    Assignee: Axis S.p.A.
    Inventors: Luciano Santandrea, Massimo Lombardi
  • Patent number: 4979285
    Abstract: A method of retaining a series of plates together in a stacked relationship, using integral projections and mating recesses formed by punching dies. As each plate is added to the stack, a restriking die is driven against the exposed face of the newly added plate to form transverse notches in the plate surface. The plate is thus deformed so that material flows into previously formed notches in a subjacent plate. The displaced material acts as a frictional interlock with the subjacent plate.
    Type: Grant
    Filed: July 20, 1990
    Date of Patent: December 25, 1990
    Inventor: Benson D. Martin
  • Patent number: 4974313
    Abstract: A lead guide actuating mechanism for use on armature winding machines is mounted on the same non-rotating structure that supports the wire guide forms at the end of the flyer drive shaft. An axially movable piston surrounds the flyer motor drive shaft. The piston, when actuated, contacts rollers mounted on a diametrical arranged arm mounted for rotation with the flyer drive shaft. There is no contact between the piston and the rollers until the piston is actuated. The lead guide is attached to an extension of an axially aligned pin that has a bearing surface on its end which engages the arm; it is also moved axially when the piston is actuated, and thus the lead guide is moved into position in response to the action of the piston. The lead guide and the wire guide forms are mounted on a common non-rotating structure that can be quickly removed from the flyer drive shaft.
    Type: Grant
    Filed: September 21, 1989
    Date of Patent: December 4, 1990
    Assignee: Odawara Automation, Inc.
    Inventor: Arthur C. Reiger, Jr.
  • Patent number: 4970774
    Abstract: A plurality of phase insulators are inserted in the cavities of the stator of a dynamo-electric machine by means of an insertion device which includes a plurality of guide blades displaced circumferentially around a central axis and an insertion member slidable between the series of guide blades and having a circumferential series of axial grooves in its outer surface in which the various blades are engaged. The insertion member is disposed initially in a rest position in which it allows a phase insulator to be positioned above the guide blades, after which it is moved to an operative position so as to cause the phase insulators to slide along the guide blades and to be inserted in the cavities of the stator.
    Type: Grant
    Filed: December 21, 1989
    Date of Patent: November 20, 1990
    Assignee: Officine Meccaniche Pavesi & C. S.p.A.
    Inventor: Giorgio Barrera
  • Patent number: 4967469
    Abstract: The insertion finger is made of a striptype heart (10) and sheet metal lips (16) connected thereto. It is intended for use with a device for inserting coils in stators of electrical machines. More specifically, it is used for the insertion of coils into grooves of helical stator sheet packages. For that purpose, the heart (10) is composed of a plurality of segments (20) axially disposed in side-by-side relationship and movable relative to one another. This construction causes the insertion finger to follow a helical stator tooth, insuring at the same time a safe and non-resilient guidance of the coils during the process of insertion and a uniform support of the forces to be absorbed throughout the length of the insertion finger so that there is relatively low wear.
    Type: Grant
    Filed: July 21, 1989
    Date of Patent: November 6, 1990
    Assignee: Statomat Spezialmaschinen GmbH
    Inventor: Filippo Leame
  • Patent number: 4955130
    Abstract: A blade replacement technique for removing and replacing the wedge guide, coil feeder and/or pusher blades of coil inserter tooling is disclosed. The tooling includes a circular array of coil feeder blades and a circular array of wedge guide blades, with the wedge guide blades being in face-to-face apposition with the feeder blades and being radially outwardly of the feeder blades. A collet encircles the wedge guide blades and has a first surface restraining an intermediate portion of each wedge guide blade against axial and radial displacement and second surface facing and spaced from each wedge guide blade and defining a clearance zone. Each wedge guide blade is supported and restrained at its proximal end by being received in an annular groove in a support plate. Each coil feeder blade has its proximal end received in a slotted ring and each feeder blade is axially restrained by a pin projecting radially outwardly in each slot.
    Type: Grant
    Filed: January 29, 1990
    Date of Patent: September 11, 1990
    Assignee: Pease Windamatic Systems, Inc.
    Inventors: Cedric L. Bricker, Timothy K. Pease, Donald L. Kammeyer
  • Patent number: 4944085
    Abstract: A method of manufacturing fractional horsepower motors involves using each stator to customize the length of a rotor/shaft to match the thickness of the specific stator with which it will be used. This is accomplished by providing a fixture which receives the stator in a gauging position. The rotor/shaft, with a compressible member thereon, is placed on the fixture which is then closed over a distance fixed by the gage formed by the stator. As the fixture closes, a compressible member is compressed to exactly fit the length of the rotor/shaft assembly to the stator thickness. The compressible member is a preferably nylon or metal plug which is pushed into a metal cup and mounted at the end of the rotor as the fixture closes.
    Type: Grant
    Filed: April 25, 1989
    Date of Patent: July 31, 1990
    Assignee: Uppco Incorporated
    Inventors: Max Lautner, Fred Hoffman, Edward Melnikov
  • Patent number: 4921178
    Abstract: A machine for winding a rotor core for a rotating electrical machine, the rotor core having axially extending winding slots and to be provided with a winding comprising a number of coils corresponding to the number of winding slots, includes two mutually similar winding devices (2, 3) arranged coaxially opposite another. The winding devices can be brought together and moved apart in the axial direction and each device includes a wire guide ring (16) having an inner diameter larger than the outer diameter of the rotor core (13) and provided in its surface thereof facing the other winding device with radially extending wire guide grooves (17) corresponding to the winding slots of the rotor core. The inner surface of the ring (16) has provided thereon, opposite each guide groove (17), a radially and inwardly projecting lug (18) with radial extension exceeding the clearance between the inner surface of the ring (16) and the outer surface of the rotor core (13).
    Type: Grant
    Filed: April 4, 1989
    Date of Patent: May 1, 1990
    Assignee: Garphyttan Industrier AB
    Inventors: Roland Holm, Josef E. Enhardt
  • Patent number: 4918802
    Abstract: This disclosure relates to a method and apparatus for assembling a rotor for a rotating electric machine, the rotor including a plurality of permanent magnet segments, and an outer sleeve or cylinder. A thin-walled metal cylinder is fashioned and arcuate magnet segments are positioned in angularly spaced relation against the interior surface of the cylinder. The segments are displaced radially outwardly to stretch or expand the outer cylinder, and the segments are then supported in the outwardly displaced positions. The segments may be displaced by a variety of devices including an expanding mandrel, a tapered part of a shaft and a tapered ring.
    Type: Grant
    Filed: February 6, 1989
    Date of Patent: April 24, 1990
    Assignee: Franklin Electric Co., Inc.
    Inventor: Edward J. Schaefer
  • Patent number: 4918835
    Abstract: A method of making a multiphase winding package and placing it into the grooves of a linear stator being mounted, with open grooves facing down, on the underside of a support and carrier plate, includes storing and paying individual ones of a plurality of separate cables on a vehicle while moving the vehicle on the carrier; the cables are bent individually commensurate with a desired meander configuration for each of them in a winding package; the meander shaped cables are then superimposed corresponding to the winding pattern to be attained; ribbon connection as well as holding elements are provided at fixed distances onto runglike portions of the cables; the thus, in situ assembled winding package is mounted to the stator by placing these runglike portions with holders into the grooves of the stator.
    Type: Grant
    Filed: May 23, 1989
    Date of Patent: April 24, 1990
    Assignees: Kabelmetal Electro GmbH, Thyssen Industrie AG
    Inventors: Hans G. Raschbichler, Luitpold Miller, Manfred Wcislo, Otto Breitenbach
  • Patent number: 4909057
    Abstract: A method of continuouly forming edgewise wound cores from a continuous lanced strip of a ferromagnetic material having a pair of opposite faces interposed between a pair of opposite edges at least in part extending lengthwise of the lanced strip. In practicing this method, the lanced strip is continuously drawn through a bending zone in which at least the opposite edges are constrained, and the lanced strip is continuously deformed generally edgewise thereof about an axis of the bending zone so as to continuously from a plurality of helical convolutions. At least as the lanced strip travels beyond the bending zone, the lanced strip is pressed against a rotatable surface to effect the continuous drawing of the lanced strip through the bending zone.A core, a lanced strip, and apparatus are also disclosed.
    Type: Grant
    Filed: August 26, 1988
    Date of Patent: March 20, 1990
    Assignee: General Electric Company
    Inventor: Harold L. Fritzsche
  • Patent number: 4905365
    Abstract: Hoist assist mechanism which assists in the manual movement of a coil insertion tool assembly to and from an operational position. The hoist assist mechanism has a rotatable base, to which is attached an upwardly extending post. At the upper portion of the post is a sheave, Also, attached to the base, adjacent the post, is a support arm which supports a coil insertion tool assembly. The support arm is pivotally attached to the rotatable base. A cable is attached to the arm. The cable extends over the sheave and is also attached to a spring which assists in pivotal movement of the arm. The spring is adjacent the post or enclosed by the post. Preferably, plurality of posts and arms are pivotally attached to the base. Each pivotal arm supports a coil insertion tool assembly. Thus, coil insertion tool assemblies for different stator cores can be easily and readily moved into and out of operational position as desired.
    Type: Grant
    Filed: May 18, 1989
    Date of Patent: March 6, 1990
    Assignee: Machine Products Corporation
    Inventors: Robert C. Appenzeller, Curtis R. Bailey
  • Patent number: 4901433
    Abstract: A plurality of phase insulators are inserted in the cavities of the stator of a dynamo-electric machine by means of an insertion device which includes a plurality of guide blades displaced circumferentially around a central axis and an insertion member slidable between the series of guide blades and having a circumferential series of axial grooves in its outer surface in which the various blades are engaged. The insertion member is disposed initially in a rest position in which it allows a phase insulator to be positioned above the guide blades, after which it is moved to an operative position so as to cause the phase insulators to slide along the guide blades and to be inserted in the cavities of the stator.
    Type: Grant
    Filed: June 24, 1988
    Date of Patent: February 20, 1990
    Assignee: Officine Meccanishe Pavesi & C. S.p.A.
    Inventor: Giorgio Barrera
  • Patent number: 4882833
    Abstract: A coil mounting method and apparatus is disclosed, for example, for mounting coils to the inner periphery of a cylindrical core in assembling a cylindrical rotary transformer of a VTR cylinder. A wire is wound round the outer periphery of a coil holding jig that is capable of opening and closing in a radial direction. After the coil is formed, the coil holding jig is inserted into a cylindrical article and opened radially to have the coil fitted in a coil groove formed in the inner periphery of the cylindrical article. The mounting of the coil to the inner periphery of a cylindrical article can be done in a short time through a reduced number of steps.
    Type: Grant
    Filed: May 13, 1988
    Date of Patent: November 28, 1989
    Assignee: Hitachi, Ltd.
    Inventors: Hiromichi Hiramatsu, Hitoshi Odashima, Kuniaki Hirayama, Toshio Ohji
  • Patent number: 4858307
    Abstract: Hoist assist mechanism which assists in the manual movement of a coil insertion tool assembly to and from an operational position. The hoist assist mechanism has a rotatable base, to which is attached an upwardly extending post. At the upper portion of the post is a sheave. Also, attached to the base, adjacent the post, is a support arm which supports a coil insertion tool assembly. The support arm is pivotally attached to the rotatable base. A cable is attached to the arm. The cable extends over the sheave and is also attached to a spring which assists in pivotal movement of the arm. The spring is adjacent the post or enclosed by the post. Preferably, plurality of posts and arms are pivotally attached to the base. Each pivotal arm supports a coil insertion tool assembly. Thus, coil insertion tool assemblies for different stator cores can be easily and readily moved into and out of operational position as desired.
    Type: Grant
    Filed: February 9, 1989
    Date of Patent: August 22, 1989
    Assignee: Machine Products Corporation
    Inventors: Robert C. Appenzeller, Curtis R. Bailey
  • Patent number: 4827601
    Abstract: Wire trimmer blades having sharp edges are located at the forward end of the inner commutator shield of an armature winding machine. Clamps gripping the start and finish wires of the armature are moved to cause the wire segments gripped by the clamps to be stretched and then severed at the sharp edges.
    Type: Grant
    Filed: October 13, 1987
    Date of Patent: May 9, 1989
    Assignee: Statomat-Globe, Inc.
    Inventor: Alvin C. Banner
  • Patent number: 4818905
    Abstract: Slotless and toothless wound stators for electrical machines, in particular brushless DC motors, include removable temporary teeth at opposite ends of an iron cylinder with smooth inner wall end-to-end, an electrical winding without sypporting form against the inner wall and between and around the teeth, an expandable cylinder for retaining the winding against the smooth inner wall. The completed stators lack teeth and slots from end-to-end of the iron cylinder, have the winding placed against the smooth inner wall of the iron cylinder, and have the reformed plastic cylinder pressing and retaining the winding against the smooth inner wall.
    Type: Grant
    Filed: December 13, 1985
    Date of Patent: April 4, 1989
    Assignee: EDO Corporation
    Inventor: Robert J. Lender
  • Patent number: 4817256
    Abstract: An automatic machine for forming induction windings in the axial slots of rotors of dynamo-electric machines, such as electric motors, alternators and the like, comprises a wire-guiding unit for supplying an array of conductor wires to a winding station at which motor-driven take-up means operate to engage the radially innermost ends of the wires, and chuck means for gripping the shaft of the rotor and effecting the operating cycle of forming the windings. The take-up means have associated motor-driven cutting means for cutting the ends of the wires at the end of a cycle, and a member for attachment to the shaft of the rotor to drive the translation and rotation of the take-up means from the chuck means during the forming cycle.
    Type: Grant
    Filed: August 4, 1987
    Date of Patent: April 4, 1989
    Assignee: Industrie Magneti Marelli S.r.l.
    Inventors: Gionfranco Riti, Mario Scampoli
  • Patent number: 4809429
    Abstract: A method and apparatus for manufacturing laminated assemblies having ridges formed on projections which interlock with recesses of adjacent laminations. The improvement to the laminated assembly is a projection with a smaller cross-sectional area than the recess and with a plurality of exterior longitudinal ridges protruding from the projection surface for securing adjacent laminations together by compressive interference fit between the ridges and the recess in interlocking relationship throughout the laminated assembly.
    Type: Grant
    Filed: October 19, 1987
    Date of Patent: March 7, 1989
    Assignee: Carbet Corporation
    Inventor: Benson D. Martin
  • Patent number: 4800646
    Abstract: Transfer and inserter tooling for receiving coil windings from a coil winder such as a shed winder, and for inserting the coils into a dynamoelectric component such as a motor stator. The tooling includes a transfer tool molded of plastic and providing a cylindrical array of cantilever-supported fingers. The coils formed on the winder are positioned in a predetermined arrangement within the spaces between the fingers. Also included is an inserter tool having a cylindrical array of cantilever-mounted fingers and operable to insert coils positioned within the spaces between the fingers into the slots of a stator and the like. The transfer tool and inserter tool fingers are provided with interfitting alignment and guide means which properly position associated fingers of the two tools when the tools are assembled for transfer of the coils from the transfer tool to the inserter tool.
    Type: Grant
    Filed: September 24, 1987
    Date of Patent: January 31, 1989
    Assignee: Pease Windamatic Systems, Inc.
    Inventor: Paul R. Russell
  • Patent number: 4768727
    Abstract: In a device for transferring a pallet-mounted electric motor armature to an armature winding formation station, the armature is made rigid with the pallet by members which enable it to be released therefrom, and the frame carrying the winding arms comprises a vertical gripper for gripping the armature and connected to drive means which cause it to rotate about its axis between said winding arms; means are also provided for vertically transferring either the armature alone or the armature rigid with the pallet from the conveyor belt to the winding arm zone in which the armature becomes released from the pallet and secured to the vertical gripper.
    Type: Grant
    Filed: March 18, 1986
    Date of Patent: September 6, 1988
    Assignee: Axis S.p.A.
    Inventors: Luciano Santandrea, Sabatino Luciani
  • Patent number: 4759116
    Abstract: A method of applying a pre-tensioned, metal containment shroud to a rotor of a permanent magnet machine where pressure is applied to the inside of the shroud to stretch it so that the rotor may be inserted. This pressurization can also be used to size the shroud if the yield strength of the containment shroud is exceeded during the stretching process. The containment cylinder is proportioned such that on the removal of the pressure, the cylinder will have the required tension to clamp the permanent magnets to the rotor.
    Type: Grant
    Filed: November 3, 1983
    Date of Patent: July 26, 1988
    Assignee: General Electric Company
    Inventor: Donald W. Jones
  • Patent number: 4750258
    Abstract: Apparatus is disclosed for the simultaneous, axial insertion of multiple pole, multiple phase windings into the slots of a stator of an electric motor or other dynamoelectric machine. Coil groups are placed on a circular array of fingers of an axial coil inserter, with chord segments of the coil groups extending across the circular opening of the circular array of fingers. The coil groups are arranged in pairs with each pair being angularly and axially offset with respect to one another. A stripper is axially movable within the circular array of fingers so as to substantially simultaneously engage portions of the chord segments of the coil groups thereby to insert the coil groups into the slots of the stator.
    Type: Grant
    Filed: October 14, 1986
    Date of Patent: June 14, 1988
    Assignee: Emerson Electric Co.
    Inventor: Eugene W. Anderson
  • Patent number: 4741098
    Abstract: In a device for inserting prewound coils in the cavities of a stator of a dynamo-electric machine, of the type comprising an annular series of coil guide blades for receiving the prewound coils to be inserted in the cavities of the stator, an annular series of key guide blades surrounding the series of coil guide blades, and a thrust member slidable axially into the series of coil guide blades to insert the coils in the stator cavities, there are also provided an outer auxiliary coil guide member having an annular body locatable around the key guide blades and having an inner surface spaced from the outer surface of the key guide blades so as to define a first annular passage for guiding the coils during the insertion operation, and an inner auxiliary coil guide member movable with the thrust member into the series of coil guide blades and having an outer surface spaced from the inner surface of the coil guide blades so as to define a second annular passage for guiding the coils during the insertion operation
    Type: Grant
    Filed: August 12, 1986
    Date of Patent: May 3, 1988
    Assignee: Officine Meccaniche Pavesi & C. S.p.A.
    Inventor: Giorgio Barrera
  • Patent number: 4741094
    Abstract: A two pole permanent magnet rotor which utilizes a single cylindrical two pole permanent magnet mounted between two end pieces and surrounded by a retaining hoop. The cylindrical two pole permanent magnet, which is made of high energy product material, is "straight through" diametrically magnetized to provide a sinusoidal air gap flux distribution which eliminates losses due to harmonics. The cylindrical two pole permanent magnet may be made of a plurality of smaller magnet blocks which are stacked and machined to form cylindrical configuration.
    Type: Grant
    Filed: December 22, 1986
    Date of Patent: May 3, 1988
    Assignee: The Garrett Corporation
    Inventors: Joseph Denk, Kenneth L. Wuertz
  • Patent number: 4739549
    Abstract: A method and apparatus for placing prewound windings into the grooves of stator coils and armatures in which needles are employed to insert the stator coils into the grooves. During insertion, the needles are displaced with a feeding movement in a longitudinal direction to the slots thereby obviating damage to the wires during their insertion. During insertion both the needles with the inserted coils and cover slide are enabled to move to promote the insertion procedure and without causing damage to the coils in the process of such insertion.
    Type: Grant
    Filed: August 29, 1984
    Date of Patent: April 26, 1988
    Inventor: Otto Rist
  • Patent number: 4728842
    Abstract: A method and apparatus for manufacturing laminated assemblies having ridges formed on projections which interlock with recesses of adjacent laminations. The improvement to the laminated assembly is a projection with a smaller cross-sectional area than the recess and with a plurality of exterior longitudinal ridges protruding from the projection surface for securing adjacent laminations together by compressive interference fit between the ridges and the recess in interlocking relationship throughout the laminated assembly.
    Type: Grant
    Filed: September 29, 1986
    Date of Patent: March 1, 1988
    Assignee: Carbet Corporation
    Inventor: Benson D. Martin
  • Patent number: 4723354
    Abstract: A method and apparatus for positioning and transferring stator coil leads in a dynamoelectric stator assembling machine. The apparatus includes holding devices for positioning and retaining the stator coil leads after the coils are wound and before they are inserted into the stator core. The apparatus also includes lead pullers for transferring the leads, during insertion of the coils into the stator core, from the inserting equipment to a stator carrying pallet having lead retaining devices herein. The apparatus further includes lead catchers for capturing the leads from the stator pallet lead retaining devices and for transferring the leads from the stator pallet to a lead finishing apparatus.
    Type: Grant
    Filed: January 31, 1986
    Date of Patent: February 9, 1988
    Assignee: Industra Products, Inc.
    Inventor: Keith W. Moser
  • Patent number: 4713883
    Abstract: In a production line for electric motor stators, the stators are rigidly fixed individually, onto respective individual pallets which advance along conveyor belts, in proximity to which the necessary stator-working stations are located; mechanical means are also provided for removing the pallets from the belts and handling them so that the respective stators become disposed in positions corresponding with the working stations located along the line, and in proximity to which said mechanical means are provided.
    Type: Grant
    Filed: March 18, 1986
    Date of Patent: December 22, 1987
    Assignee: Axis S.p.A.
    Inventors: Luciano Santandrea, Sabatino Luciani
  • Patent number: 4694560
    Abstract: A device usable in the manufacture of stators for dynamo-electric machines for fixing end portions of the coils of a stator to a support member carried by the stator comprises means for disposing the end portions of the stator coils in directions parallel to a plane substantially perpendicular to the axis of a stator and facing an end surface of the stator so as to make the end portions project outwardly from the stator, means for moving the end portions in the plane substantiallyperpendicular to the axis of the stator until they are brought into a zone of the end surface of the stator in which the support member is disposed, and means for thrusting the end portions downwardly to fit them into corresponding grooves provided in the support member.
    Type: Grant
    Filed: May 14, 1986
    Date of Patent: September 22, 1987
    Assignee: Officine Meccaniche Pavesi & C. S.p.A.
    Inventor: Giorgio Barrera
  • Patent number: 4688413
    Abstract: Apparatus for continuously forming edgewise wound salient pole cores from a continuous lanced strip of generally thin ferromagnetic material. The lanced strip includes a yoke section extending generally lengthwise thereof and having a pair of sets of segments therein with the segments of one of the segment sets being integrally interposed between the segments of the other of the segment sets, and a set of salient pole teeth integral with the segments of the one segment set so as to extend generally laterally from the yoke section. The apparatus has a pair of means operable generally for effecting generally edgewise deformation of only the segments of the other segment set in the yoke section of the lanced strip upon the continuous passage of at least the yoke section between the edgewise deformation effecting means.
    Type: Grant
    Filed: October 1, 1985
    Date of Patent: August 25, 1987
    Assignee: General Electric Company
    Inventor: Harold L. Fritzsche