Abstract: The invention is directed to an apparatus (100) and a method for manufacturing a partial nest or a nest (5) of pin conductors (1, 1i, 1o) for forming a stator. The apparatus (100) comprises a stator core template (10) with a block body (11) and radially extending ribs (12) forming slots (13) there between for insertion of legs (2, 2i, 2o) of the pin conductors (1, 1i, 1o). The apparatus (100) comprises at least one ring element (25, 33, 42) being arranged to provide an outer radial abutment face for inserted pin conductors (1, 1i, 1o).

Abstract: A supporting basket for an end winding of a stator winding of an electrical machine, the supporting basket including: at least one supporting ring; a plurality of supporting brackets arranged circumferentially distributed along the at least one supporting ring and attached to the at least one supporting ring; and a plurality of round connectors arranged radially externally on the supporting brackets, the round connectors extending circumferentially and being attached to the supporting brackets; wherein the supporting brackets, the at least one supporting ring, and the round connectors comprise an impregnation formed by dip-impregnation as a preassembled unit.

Abstract: It is described a clamping system (30) of special conductors (S1, S2, S3) for a stator or rotor bar winding (U1, S1, S2, S3) for an electric machine, such as connection terminals (S1), jumpers (S2), neutrals or star points (S3), etc. The system (30) allows the special conductors (S1, S2, S3) to be clamped during a twisting step and/or a step of picking up such conductors from a twisting device (250). The system comprises a system axis (T-T), a plurality of grippers (10) aligned or able to be aligned along a circumference lying on a plane substantially perpendicular to the system axis (T-T) and actuation elements (50, 60, 70, 80, 90) of the grippers (10). Each gripper includes a pair of jaws (32, 33) mounted so as to be mobile in a plane transversal to said system axis (T-T).

Abstract: A fixture for removing slip ring assemblies from rotating electrical machinery. The fixture attaches directly to the slip ring assembly through bolted connection points for ease of installation and removal. A jacking mechanism provides mechanical leverage to pry the slip ring from its heat-shrunk fit mounting location in a manner that is reliable and safe for the service worker and the slip ring assembly. The fixture is lightweight and portable, facilitating use with electrical generators in the field and especially with wind turbine generators located on a wind turbine tower.

Abstract: A method of preparing a plurality of bar-wound stator conductors for electrical interconnection includes inserting the plurality of conductors into a stator, twisting a conductor such that a first conductor of a first row is adjacent to a second conductor of a second row; trimming the adjacent first and second conductors to a common length using a trimming device; and grinding the trimmed first and second conductors to a pre-determined surface profile using a rotary cutting tool.

Abstract: A lead wire insertion device includes a first chuck member and a second chuck member, each of which is separable, and connects a coil terminal of a cassette coil to a terminal of a connection terminal. The first chuck member is divided into the first chuck inner member and a first chuck outer member at a first division position that is inside both ends of a cross section of the coil terminal in a lateral direction, and that is offset from a center of the cross section in the lateral direction. The second chuck member is divided into the second chuck inner member and a second chuck outer member at a second division position that is inside the both ends of the cross section of the coil terminal in the lateral direction, and that is offset from a center of the cross section in the lateral direction.

Abstract: A machine to form the heads of coils made of relatively large rectangular wire so that it fits within the slots of the stator of an electric machine is described herein. The machine receives a coil having unformed first and second heads separated by first and second legs and apply controlled deformation thereto to yield properly shaped heads. The machine comprises first and second leg support mechanisms for gripping the first and second legs and four head forming elements for contacting portions of the heads of the wire coil while the first and second legs are gripped by the leg support. The head forming elements are mounted to the first and second leg support mechanisms for relative movement therebetween. Actuators, coupled to a controller so as to be controlled therefrom are provided for moving the head forming elements and the first and second heads between spaced apart relationships and forming relationships.

Abstract: The jig includes an upper jig part, a lower jig part, a support plate, a guide jig part, and a spring. The upper jig part has a pressure protrusion for press-fitting a rotating shaft, and applies pressing force to the rotating shaft. The lower jig part supports a rotor casing in a direction which is opposite the acting direction of the pressing force. The support plate is mounted to the lower jig part, and supports the rotor casing in a direction which is opposite that of the force for press-fitting the rotating shaft. The guide jig part supports the rotor casing in a direction which is opposite that of reaction force generated in the rotor casing by the support plate. The spring elastically biases the guide jig part towards the rotor casing.

Abstract: An apparatus for producing a coil winding for stators is described, in which each coil turn rests, with one fillet (14) each, in two stator slots, and the two fillets (14) are joined by a head portion (16). A plurality of coil turns are made simultaneously by winding up n parallel wires (10) with intermediate spacing onto a rotatable former (20). To obtain small winding heads, alternatingly in a work step A, one fillet (14) and the wire length of one head portion (16) are made from each of the n parallel wires (10) on the former (20). Then in a work step B, the resultant fillets (14) together with the adjoining first end of the respective associated head portions (16), and the wire guide together with the second end of these head portions (16), are displaced relative to one another along the former (20) by n times the intermediate spacing of the wires (10).

Abstract: Method for removing winding conductors from a twisting machine and placing them in a rotor or stator stack. For a plurality of rectangular winding conductors each having a pair of legs separated by an amount equal to the distance between a predetermined number of rotor or stator slots in which they will be inserted, moving a plurality of fingers of a clamping assembly between the legs of a plurality of winding conductors in a twisting fixture to retain the winding conductors, moving the clamping assembly away from the twisting fixture to withdraw the winding conductors from the twisting fixture, providing relative movement of the clamping assembly and a rotor or stator to insert free ends of the winding conductors into a rotor or stator, and moving the fingers of a clamping assembly from between the legs of a plurality of winding conductors. A preferred embodiment of the method is disclosed.

Abstract: According to one embodiment, an electronic apparatus includes a housing, a circuit board accommodated in the hosing and including a first surface and a second surface located on an opposite side to the first surface, a flexible printed wiring board having an elasticity, electrically connected to the circuit board and provided from the first surface of the circuit board over to the second surface, and a pressing portion formed from a part of the flexible printed wiring board as it is bent, and pressing the flexible printed wiring board towards the first surface as it is brought into contact with the inner surface of the housing, which opposes the first surface of the circuit board.

Abstract: Stator coils are inclined with respect to the axial direction of annularly arranged coil holding portions and such that at least parts of the stator coils overlap one another. In setting the stator coils on the coil holder, the stator coils are sequentially set on the coil holder in a predetermined direction, which is a coil setting direction, from the starting stator coil so as to overlap one another. The second section of the ending stator coil is set at the same position as a position where the first section of the starting stator coil is set in the circumferential direction or at a position advanced from the position where the first section of the starting stator coil is set in the circumferential direction. The ending stator coil is set on the coil holder to be further inward than the starting stator coil. Therefore, stator coils are evenly arranged.

Abstract: A method and apparatus for compressing the endplate of an electric generator to relieve the restraining force on a plurality of key blocks that restrain the endplate in compression. The method includes simultaneously applying independent compressive loads at each of the key block locations to the endplate to relieve pressures on the key blocks and removing the key blocks so the endplate can be removed.

Abstract: In a resolver of a motor, a plurality of wires forming a plurality of coils arranged at a resolver stator portion are arranged at a wiring surface which is arranged at a terminal block of a connector portion and extends between an annular shape surface arranged substantially perpendicularly to a central axis at a core back of an insulator and a plurality of terminal pins, and are connected to a control unit via the terminal pins. Each of the wires of the resolver includes a slackened portion formed at a portion thereof between corresponding terminal pins and corresponding coils. The slackened portion is accommodated in a groove portion arranged at the wiring surface of the connector portion in order to minimize the possibility of damaging the wire improving reliability of the connection between the terminal pin and the coil.

Abstract: A forming machine for forming a loop winding having a plurality of meandering parts and disposed in a stator of a motor which includes: a first die unit having a plurality of first dies spaced from each other at regular intervals in a circumferential direction; and a second die unit having a plurality of second dies which are spaced from each other at the same intervals as the regular intervals in a circumferential direction and which are each disposed between adjacent ones of the first dies, wherein each of the second dies has a winding holding part for holding a loop winding; and the first die unit and the second die unit are each provided with a winding diameter reducing means for reducing the loop winding in the radial direction thereof according to a displacement of the first die unit in the axial direction relative to the loop winding held by the winding holding parts.

Abstract: An object of the present invention is to provide a small, high-power rotating electrical machine by suitably forming a distributed winding coil such that two stator magnetic poles each formed of in-phase coil turns are arranged within an electric angle of 360 degrees formed by magnetic poles of the rotor. The present invention provides a method for manufacturing a stator, the method including a first step of placing a distributed winding coil 207 composed of a wire wound around a reel 210, as a whole, inside a stator core 202, and a second step of moving an insertion blade 213 so as to spread the distributed winding coil 207 in the radial direction of the stator core 202, thus inserting the distributed winding coil 207 into a stator core slot 206.

Abstract: A lead wire insertion device includes a first chuck member and a second chuck member, each of which is separable, and connects a coil terminal of a cassette coil to a terminal of a connection terminal. The first chuck member is divided into the first chuck inner member and a first chuck outer member at a first division position that is inside both ends of a cross section of the coil terminal in a lateral direction, and that is offset from a center of the cross section in the lateral direction. The second chuck member is divided into the second chuck inner member and a second chuck outer member at a second division position that is inside the both ends of the cross section of the coil terminal in the lateral direction, and that is offset from a center of the cross section in the lateral direction.

Abstract: Disclosed herein is a jig for assembling a rotor. The jig includes an upper jig part, a lower jig part, a support plate, a guide jig part, and a spring. The upper jig part has a pressure protrusion for press-fitting a rotating shaft, and applies pressing force to the rotating shaft. The lower jig part supports a rotor casing in a direction which is opposite the acting direction of the pressing force. The support plate is mounted to the lower jig part, and supports the rotor casing in a direction which is opposite that of the force for press-fitting the rotating shaft. The guide jig part supports the rotor casing in a direction which is opposite that of reaction force generated in the rotor casing by the support plate. The spring elastically biases the guide jig part towards the rotor casing.

Abstract: The invention provides a distributed winding stator using a rectangle conductor as coil, realizing a miniaturized coil end and reduced current density compared to the prior art stator, so as to obtain a miniaturized rotation electric machine with high power. The distributed winding stator is formed by wave winding a conductor source wire having a rectangular cross-section, wherein the wire is cranked so that parietal regions on both ends are displaced corresponding to the width of the source wire and that the length is within the range of intervals between adjacent slots, and inserting the wave winding coil into slots of the stator.

Abstract: A stator manufacturing device including a winding unit for forming a winding coil made up of a plurality of unipolar coils formed by winding wire, an insertion unit for receiving the winding coil from the winding unit and inserting the winding coil into a stator core, a shaping unit for shaping an outline of the winding coil that has been inserted into the stator core, and a transfer unit that is movable towards the insertion unit and the shaping unit, such that, in a state of holding the stator core, the transfer unit, by relatively moving to the insertion unit, moves the winding coil into a position for insertion into the stator core, and, by moving relative to the shaping unit, forms an outline of the winding coil.

Abstract: After a winding machine connects a winding wire to a terminal pin, a slackening member is moved in a substantially horizontal direction substantially orthogonal to a direction of a terminal block being extended so as to be located on an orbit of the winding wire. Then, a led part of the winding wire radially between the terminal pin and teeth is extended to the teeth while in contact with a curved surface of a tip of the slackening member. That is, the led part is extended while bent in the substantially horizontal direction. After the winding wire is wound around the respective teeth, the slackening member is moved out of the orbit.

Abstract: A method and apparatus for compressing the endplate of an electric generator to relieve the restraining force on a plurality of key blocks that restrain the endplate in compression. The method includes simultaneously applying independent compressive loads at each of the key block locations to the endplate to relieve pressures on the key blocks and removing the key blocks so the endplate can be removed.

Abstract: A forming machine for forming a loop winding having a plurality of meandering parts and disposed in a stator of a motor which includes: a first die unit having a plurality of first dies spaced from each other at regular intervals in a circumferential direction; and a second die unit having a plurality of second dies which are spaced from each other at the same intervals as the regular intervals in a circumferential direction and which are each disposed between adjacent ones of the first dies, wherein each of the second dies has a winding holding part for holding a loop winding; and the first die unit and the second die unit are each provided with a winding diameter reducing means for reducing the loop winding in the radial direction thereof according to a displacement of the first die unit in the axial direction relative to the loop winding held by the winding holding parts.

Abstract: A holding jig is made into cylindrical body that has a conductor insertion aperture, and a conductor end portion is inserted into the conductor insertion aperture in a loosely-fitted state and held. The holding jig is moved along an arc that has a radius L that is centered around a projecting root portion of the conductor end portion to a vicinity of a coil end to bend and form the conductor end portion into a desired lead around shape.

Abstract: The wedge removal apparatus includes an elongated frame having telescopic elements at opposite ends with cylinders to engage pads along opposite sides of the frame against diametrically opposed wedges of stator core slots. The frame mounts a linear drive assembly carrying a carriage for longitudinal movement relative to the drive assembly and frame. The carriage mounts diametrically opposed heads and a cylinder displaces the heads radially outwardly to engage the wedges and compress underlying ripple springs. Saws carried by the heads cut through the wedges as the carriage is displaced along the frame and without binding because of the force applied to the wedges compressing the ripple springs. The linear drive assembly is rotated to discrete circumferential positions to cut the wedges of additional diametrically opposed slots.

Abstract: A number of embodiments of rotating electrical machines and methods for winding them that provides a high space utilization and very effective winding with less likelihood of damage to the insulation of the wire of the winding during the winding process. The arrangement basically does not require the winding needle to be moved back and forth in the slot between the poles but rather employs insulating inserts that are positioned on the axial faces of the poles outside of the gaps for guiding the wire from one end to the other so as to provide the high space utilization.

Abstract: A technique for separating the stator leads of an electric motor during the manufacturing process. The technique comprises a system having a lead gathering assembly, a lead separator, and a drive mechanism. The lead gathering assembly is adapted to gather together a plurality of stator windings extending from a stator. The lead separator having a plurality of teeth adapted to separate a stator winding from the plurality of stator windings gathered together by the lead gathering assembly. The drive mechanism is adapted to drive the lead separator into the plurality of stator windings. The lead separator has teeth to separate each of the stator windings gathered together by the lead gathering assembly.

Abstract: A device for manufacturing a motor is disclosed. The motors to be manufactured have a stator body including a stator of the motor, field cores that protrude from the inside surface of the stator body, pole pieces that extend from the field cores to cross with the field cores, coil receiving parts defined by a space facing the field cores, the pole pieces and the inside surface of the stator body, and coils retained in the coil receiving parts. The device has first jigs that extend in the longitudinal direction of the stator body and retain the pole pieces as well as a second jig that extends in the longitudinal direction of the stator body. The second jig has a pressing part corresponding to the arcuate shape of the pole pieces. The device further includes a pressing mechanism that presses the first jigs retaining the pole pieces away from the coil receiving parts, thereby bending the pole pieces away from the coil receiving parts.

Abstract: A stator stack and stator jig assembly provide a consistent amount of slack in stator coil wires without increasing the complexity of coil-winding machines or adding production steps, and prevent crossing of the stator coil wires in the slack areas. A stator stack having magnetic pole teeth is mounted in a stator installation jig, and the ends of slack forming plates having grooves are made to project above the top surface of the stator stack to thrust stator coil wires upwardly. The coil-winding machine winds stator coil wires around the magnetic pole teeth, and after the stator coil wires are wound, the ends of the stator coil wires are passed through grooves in the ends of the plates to output pins. The coil-winding machine wraps the ends of the stator coil wires around the output pins. On removing the stator from the stator installation jig, the parts of the stator coil wires which where thrust upward become slack areas.

Abstract: An apparatus for shaping coil ends of a generator's stator having a plurality of sets of U-shaped large and small conductor segments. The apparatus includes four twister cylinders holding connection ends of the large and small conductor segments in four radial layers at an axial end of the stator, a rotating mechanism rotating the twister cylinders alternately in opposite directions, an elevating mechanism moving the twister cylinders in the axial direction of the stator, and a controller synchronously controlling the rotating mechanism and elevating mechanism.

Abstract: A method of manufacturing a layered core. The method includes the steps of: arranging a first plurality of yoke parts to define a first configuration magnetic pole sheet layer having first and second oppositely facing sides; arranging a second plurality of yoke parts to define a second configuration pole sheet layer having third and fourth oppositely facing sides; stacking the first plurality of yoke parts upon the second plurality of yoke parts so that the second side of the first configuration magnetic pole sheet layer is placed against the third side of the second configuration magnetic pole sheet layer; providing a circumferentially opening first female connector on a first yoke part; providing a first male connector on a second yoke part; and directing the first male connector into the first female connector.

Abstract: A device is provided for installing at least one linear motor line in the grooves (14) of an inductor (15) which is situated underneath a cover plate (10). The device includes a vehicle (31) which can be moved on the cover plate (10), a supply (34) of line (16), a device (36, 40) for forming the meander of the line (16), a device (35) for drawing the line (16) from the supply (34) and for delivering the line (16) to the device (36) and a tool (42) for pressing the line (16) into the grooves (14). The line may be installed automatically, even if the spacing of the grooves varies in dimension, by providing for an assembly slide (46) which can be moved in relation to the vehicle (31). The slide is located at least partially under the cover plate (10) and the device (36, 40) and tool (42) are located thereon.

Abstract: A core includes a ring body and a plurality of teeth. The teeth extend radially outward form the outer circumference of the ring body. The core is formed by assembling a first core member and a second core member. Each core member has part of the teeth the number of which is half the total number of the teeth. Each tooth includes a tooth body about which the coil is wound, and a magnetism converging portion provided at the distal end of the tooth body. The tooth height of each tooth body gradually increases from a distal section to a proximal section of the tooth body. The tooth width gradually decreases from the distal section to the proximal section. The wire is wound about each of the teeth of the first and second core members. Then, the first and second core members are assembled to form the core. Accordingly, a rotor core having a high coil accommodation efficiency and a high coil space factor is obtained.

Abstract: A rotating electric machine (1) has a rotor, a stator (2), and stator windings (3, 4). The windings (3, 4) include high voltage cable drawn through slots (5, 6) in the stator (2). Support members (8) are arranged inside the slots (5, 6) along and in contact with the windings (3, 4), said support members (8) comprising a hose (8?) with a substantially triangular cross-section. A wire (9) is extending through and being attached to each support member (8). When mounting the support members (8) air inside a support member (8) is evacuated in order to shrink the support member (8). Then the wire (9) extending through the support member (8) is used to pull the evacuated support member (8) into a slot (5, 6), whereupon the evacuated support member (8) is expanded by releasing the vacuum inside in order to make it clamp a cable inside a slot (5, 6) of the stator (2).

Abstract: A method of manufacturing a winding of a rotary electric machine includes steps of pressing a portion of a conductor segment in a predetermined direction to reduce its dimension in the direction, inserting the conductor segment into a slot of a stator core, bending the conductor segments and joining ends of the conductor segments. In the pressing step, the conductor segment is pressed with a punch in a condition that it is held in a die that has curved inside corner portions to restrict deformation of corners of the pressed portion.

Abstract: An apparatus for gripping temporarily the wire in an armature winding machine. The machine is of the type comprising a gripper formed by an arm (11) having an end (13) connected to a support (14) and the other free end (12) for gripping the wire. The free end (12) moves between a first position where it is approached to a winding zone and a second position where it is withdrawn from the winding zone. The gripper (12) translates then parallel to itself and integrally to the support (14), in vertical direction. The translation is operated by rotation of a driven axis (17) according to a predetermined function movement/time, whereby at each angular position of the axis a position of the gripper (12) univocally corresponds intermediate between the first and second position.

Abstract: A method and a corresponding apparatus provide for both the automatic lacing of a toroidal coil of a stator of a dynamo-electric machine, and the knotting of the end lacing terminal of the lacing cord, by using the same needle and the same thread-guide tube. The apparatus for lacing and knotting comprises an automatic control system that, accomplished the whole lacing operation on the coil, stops the rotation movement of the stator and drives the lacing needle according to a sequence of movements in order to form a plurality of linked rings closed one on the other for obtaining a closing chain on said end lacing terminal. A particular cutting system allows not generating scrap, i.e. undesired cord portions, accelerating the production process and increasing the system reliability.

Abstract: A method of connecting phases of a segmented stator electric machine includes providing a stator core. An end cap assembly is attached to the stator core. Winding wire is wound around the end cap assembly and the stator core to form a stator segment assembly. A plurality of the stator segment assemblies are assembled into a stator including first, second and third phases. A phase wire stitching machine is used to connect opposite ends of the winding wire of each of the stator segment assemblies to form the first, second and third phases of the stator. The phase wires can be attached to the stator segment assemblies using terminals, IDCs, hook terminals, and/or directly to the winding wire.

Abstract: Insertion devices may be used to insert portions of pre-wound coils into the slots of dynamoelectric machine components. Some machine components may have poles that have pole tips that extend away from the pole in a peripheral direction. Such pole tips may obstruct access to the slots from the axial region of the bore. The coil insertion devices may have a ram that has a longitudinal axis and may be configured to insert a portion of a stretch of pre-wound coil into a bore of the machine component. The coil insertion devices may have pushing members that move in a direction having a circumferential component with respect to the axis. The pushing members may insert portions of stretches of pre-wound coils into machine component slots that are difficult to access from the axial region of the bore.

Abstract: Hollow cylindrical dynamo-electric machine stator cores may be made by superimposing at least two strips of core material to produce a composite strip. One or more of the strips may be run through a pressure roller structure prior to super-positioning of the strips. The composite strip is coiled helically to produce the hollow cylindrical stator core. By pressure rolling at least one strip, the internal diameter of the stator core can be adjusted to reduce irregularities. By superimposing strips prior to coiling, thinner strips can be used without requiring the stator forming machine to operate longer or faster to produce stator cores of a given size. The pressure rolling aspects of the invention are also applicable to coiling apparatus that uses only a single strip. Stator cores may also be made by coaxially assembling and joining two coils with a hollow annular lamination disposed between the two axially spaced coils.

Abstract: A segment 33 of electric conductors having insulating coats 37 on surfaces thereof is received in each of slots 35 formed in a stator core 32 along its circumferential direction so as to form coil ends by protruding portions of the electric conductors from an end surface of the stator core. A first copying surface curved along a bending direction is formed in a slot opening forming cut of each slot arranged on the end surface of the stator core. A second copying surface curved along the bending direction is formed on a bending member 208 inserted into an area between two groups of coil ends of the two adjacent slots for each pair of slots. Each electric conductor is bent along a successively-curved shape formed out of the first copying surface and the second copying surface.

Abstract: The invention provides an apparatus for manufacturing a magnetic wound core of a toroidal transformer. The apparatus in accordance with a preferred embodiment of the invention comprises a control device for controlling the apparatus based on parameters of the core material and the wound core, a supplying device for providing the core material ribbon, a grinding device for grinding the lateral edges of the core material ribbon under the control of the control device, and a winding device for receiving and winding the core material ribbon into the wound core.

Abstract: An armature coil winder for winding coils at high density while restricting coil ends within a restricted space in an armature core assembly having a plurality of slots in an outer circumference thereof and a series of continuous coils, the coil winder including a fixed former for guiding one of the continuous coils into two of the slots, and a movable former for restricting a position of a coil end of one of the continuous coils between the two slots by moving in the fixed former along both end surfaces of the armature core assembly toward a center of the core assembly; a former slider including a flyer for winding one of the continuous coils around the fixed former; and a coil shaping mechanism including coil shaping blades for shaping one of the continuous coils in the slots relative to the armature core assembly. The use of such a winder to form coils of an armature core assembly is also described.

Abstract: A method for manufacturing a motor has a stator in which coils are inserted into slots provided in an inner peripheral surface of a ring-shaped motor core.

Abstract: A stator stack and stator jig assembly provide a consistent amount of slack in stator coil wires without increasing the complexity of coil-winding machines or adding production steps, and prevent crossing of the stator coil wires in the slack areas. A stator stack having magnetic pole teeth is mounted in a stator installation jig, and the ends of slack forming plates having grooves are made to project above the top surface of the stator stack to thrust stator coil wires upwardly. The coil-winding machine winds stator coil wires around the magnetic pole teeth, and after the stator coil wires are wound, the ends of the stator coil wires are passed through grooves in the ends of the plates to output pins. The coil-winding machine wraps the ends of the stator coil wires around the output pins. On removing the stator from the stator installation jig, the parts of the stator coil wires which where thrust upward become slack areas.

Abstract: A method and a corresponding apparatus provide for both the automatic lacing of a toroidal coil of a stator of a dynamo-electric machine, and the knotting of the end lacing terminal of the lacing cord, by using the same needle and the same thread-guide tube. The apparatus for lacing and knotting comprises an automatic control system that, accomplished the whole lacing operation on the coil, stops the rotation movement of the stator and drives the lacing needle according to a sequence of movements in order to form a plurality of linked rings closed one on the other for obtaining a closing chain on said end lacing terminal. A particular cutting system allows not generating scrap, i.e. undesired cord portions, accelerating the production process and increasing the system reliability.

Abstract: A cutter mounting bar (18) is attached between both left and right side walls of an outer shield (16) in an armature winding apparatus to be swingably rotatable, and it is biased in a direction in which a movable blade (21) provided integrally with a tip end portion is away from an axis X by a compression spring (19). When an inner shield (15) is rotated, a cam surface presses an adjustment screw (23) outward to swing a cutter mounting bar (18) in a direction in which the movable blade (21) approaches the axis X. In this state, when an armature (1) is rotated and a wire (7) connecting a hook wire connection portion and a gripper (30) is inserted between the movable blade (21) and a backing blade (22) to advance the outer shield (16) rightward, the backing blade (22) abuts against a groove bottom surface of the inner shield (15) and stops, and only the movable blade (21) advances rightward and severs the wire (7) at a position close to the hook wire connection portion.

Abstract: A method for making an armature assembly is provided that reduces the level of acoustic noise during initial engagement of the armature, during slippage, and during disengagement. The armature assembly includes an armature disc, an annulus of sound damping material, and a hub assembly having a flexible spider with a web portion. The armature assembly is made by first forming the annulus of sound damping material with a plurality of angularly spaced molding tabs. The annulus is affixed to the web portion of the hub assembly using the molding tabs and is then compressed by securing the armature disc to the web portion such that one side of the annulus is disposed against the web portion and a second side of the annulus is disposed against the armature disc.

Abstract: A technique for separating the stator leads of an electric motor during the manufacturing process. The technique comprises a system having a lead gathering assembly, a lead separator, and a drive mechanism. The lead gathering assembly is adapted to gather together a plurality of stator windings extending from a stator. The lead separator having a plurality of teeth adapted to separate a stator winding from the plurality of stator windings gathered together by the lead gathering assembly. The drive mechanism is adapted to drive the lead separator into the plurality of stator windings. The lead separator has teeth to separate each of the stator windings gathered together by the lead gathering assembly.

Abstract: Methods and apparatus are presented that improve the efficiency of stator production by connecting stator coil leads to final attachment devices before the coils are inserted into a stator core. After coil insertion, the final attachment devices are merely mounted to the stator receiving the stator core, eliminating most if not all post-coil-insertion lead identification and manipulation processes. The final attachment devices can be terminal receivers that include a plurality of wire sockets for receiving a plurality of coil leads. Coil leads are connected to final attachment devices during the coil winding stage. Such connections add little or no additional time to the winding stage.