JP2005143263A - Manufacturing equipment for stators for rotating electrical machines - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To form a coil in a simple procedure in a short working time and to connect and cut a lead wire to a terminal. <P>SOLUTION: In an apparatus for manufacturing a stator for a rotary electric machine, a lead wire guide jig 34 mounted on the axial center of a stator core 12, includes lead wire guide members 86a-86l protruding in an outward radial direction and brought at the axial end face into contact with the terminal T, and a first relay pin 82a and a second relay pin 82b for holding and relaying the lead wire L. The lead wire L is spread along the side faces 89 of the lead wire guide members 86a-86l, then pulled in a predetermined direction, thereby removed from the side face 89 and inserted into the terminal T. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an apparatus for manufacturing a stator for a rotating electrical machine in which an end of a coil is joined to a terminal.

  An outer rotor type stator for a rotating electrical machine forms a coil by winding a conductive wire around a tooth formed on a stator core, and the conductive wire at the end of the coil is connected to a terminal for connecting to an external device such as a battery or a changeover switch. Has been.

  Generally, it is known that the terminal and the conductive wire are connected by pressure bonding or fusion bonding (soldering or the like) (for example, see Patent Document 1).

JP-A-11-150904

  According to the above-mentioned Patent Document 1, it is preferable that the number of work steps can be considerably reduced and the arrangement space of the terminal can be reduced.

  On the other hand, in a conventional general manufacturing apparatus for a rotating electrical machine stator, for example, after the end of the conducting wire is engaged with a predetermined holding means, the conducting wire is wound around the teeth, and then the winding end conducting wire is inserted into the terminal. At the same time, the end portion is engaged with a predetermined holding means, and the extra conductor is cut.

  When manufacturing a stator for a three-phase rotating electrical machine using this type of manufacturing apparatus, the wire end engagement work, coil winding work, and terminal operation are individually performed for the U phase, V phase, and W phase. It is necessary to perform a connecting operation, a cutting operation of the winding start portion of the conducting wire, and a cutting operation of the winding winding end portion of the conducting wire. For convenience, at least 15 operations are necessary, and the procedure is complicated and the working time is long. Moreover, in order to insert a conducting wire reliably with respect to a terminal, arrangement | positioning of a terminal is limited on a design.

  The present invention has been made in consideration of such problems, and in a manufacturing apparatus of a stator for a rotating electrical machine having a stator core in which an end portion of a coil is joined to a terminal, a conductor is reliably inserted into the terminal. An object of the present invention is to provide an apparatus for manufacturing a stator for a rotating electrical machine that has a high degree of freedom in setting the terminal arrangement. It is another object of the present invention to provide an apparatus for manufacturing a stator for a rotating electrical machine that can form a coil and connect and disconnect a conductor to and from a terminal with a simpler procedure and with a shorter work time.

  In the manufacturing apparatus for a stator for a rotating electrical machine according to the present invention, for a plurality of terminals provided on an end surface in the axial direction, the ends of the coil conductors formed on the teeth on the outer diameter side of the terminals are joined to the terminals. In the stator manufacturing apparatus for a rotating electrical machine including the stator core, the conductor guide jig mounted on the axial center portion of the stator core, the conductor guide jig protrudes in the outer diameter direction, and the axial end face is the A guide portion disposed close to or in contact with the terminal; and a holding portion that holds the conductive wire, and the conductive wire held by the holding portion is stretched along a side surface of the guide portion. After that, by pulling in a predetermined direction, it is detached from the side surface and inserted into the terminal.

  Thus, the conducting wire held by the holding portion is stretched on the side surface of the guide portion, and then the conducting wire can be inserted into the terminal by pulling the conducting wire in an appropriate direction. Moreover, since a conducting wire is inserted into the terminal from the side surface of the guide portion, the degree of freedom in arranging the terminal is large in design.

  In this case, the conducting wire is stretched between the two coils of different phases via the two guide portions and the holding portion, and the holding portion is substantially in the middle of the two guide portions. It is good to act as a relay part that changes the direction of the.

  Thereby, it is not necessary to connect, cut, and hold the lead wire between the respective phases while keeping the tension of the lead wire moderately, and the coils of each phase can be continuously formed. Therefore, the coil can be formed with a simple procedure and in a short working time. In addition, the connection, disconnection, and holding of the conductive wire can be performed collectively after all the coils are formed, and the working efficiency is improved.

  A rotating means for intermittently rotating the stator core; and a rotatable winding means provided in the outer diameter direction of the stator core for winding the conductive wire around the teeth to form the coil. The winding means can be configured to be simple and inexpensive if the conductor is made to follow the side surface of the guide portion in conjunction with the rotating means.

  Further, the guide unit is provided in a number corresponding to the number of phases of the stator for the rotating electrical machine, and the guide unit is set between the two coils so that the height in the axial direction is different corresponding to each phase. It is possible to reliably and easily carry out the work of stretching the lead wires.

  The guide portion is provided so as to be movable in the axial direction by receiving a force from a predetermined pressing means, and when the guide portion moves in the axial direction, the axial end surface presses the plurality of terminals. When the wire and the conductive wire are crimped at once, the crimping operation can be performed easily and in a short time.

  Furthermore, it has a cutting jig which cuts the conducting wires inserted into the plurality of terminals at a time in the vicinity of each terminal by being pressed in the axial direction by the pressing means, and the cutting jig has the axial direction After the terminal and the conducting wire are fixed by the end face, the conducting wire may be cut. Thereby, the cutting | disconnection operation | work can be performed easily and for a short time. In addition, the conductor does not come apart after cutting, and the tension of the conductor can be kept uniform.

  According to the stator for a rotating electrical machine according to the present invention, the conducting wire held by the holding portion is stretched on the side surface of the guide portion, and then the conducting wire is pulled in an appropriate direction so that the conducting wire is reliably inserted into the terminal. In addition, the degree of freedom in setting the terminal layout is great.

  Further, by relaying the conducting wire between the coils of different phases by the holding portion, it is possible to continuously form the coil while keeping the tension of the conducting wire moderately. Thereby, it is not necessary to connect, cut and hold the conductive wire between the respective phases, and the coil can be formed with a simple procedure and in a short working time. In addition, the connection, disconnection, and holding of the conductive wire can be performed collectively after all the coils are formed, and the working efficiency is improved.

  Hereinafter, an embodiment of a manufacturing apparatus for a stator for a rotating electrical machine according to the present invention will be described with reference to FIGS.

  As shown in FIG. 1, the stator 10 for a rotating electrical machine according to the present embodiment includes a stator core 12 that is a workpiece, a motor 14 that can intermittently rotate the stator core 12 in the direction of arrow A, and the stator core 12. A teeth positioning mechanism 16 that positions the teeth 44 with respect to the position P, a winding machine body 17, and a winding nozzle 18 that feeds a conductive wire (for example, a copper wire having an enamel coating) L unwound from a reel 19. The winding nozzle 18 forms a coil 20 (see FIG. 2) by winding a conductive wire L around the teeth 44 and adjusts the relative position with respect to the stator core 12, and the coil 20 is connected to the stator core. 12 and a winding coil pushing mechanism 24 that pushes in the center direction. In addition, the rotating electrical machine stator manufacturing apparatus 10 rotates the winding nozzle 18 and a first drive mechanism 28 that advances and retracts the winding nozzle 18 in the direction of arrow B, which is a normal direction with respect to the stator core 12. A second drive mechanism 30. The stator core 12 is used as a stator for a rotating electrical machine such as a motor or a generator.

  The rotating electrical machine stator manufacturing apparatus 10 also includes a mounting base 32 for mounting the stator core 12 to the motor 14, a wire guide jig 34 provided at the axial center of the stator core 12, and the coil 20 on the stator core 12. A cutting jig 36 for connecting the lead wire L to the terminal T and cutting it at a predetermined position after forming, and a press 38 for pressing the cutting jig 36 against the lead guide jig 34 and the stator core 12 are provided. .

  As shown in FIG. 2, the stator core 12 forms a circuit of two star connections by winding a conducting wire L to form a coil 20. That is, a first circuit 40 having external terminals Tu1, Tv1, and Tw1 corresponding to each phase and neutral point terminals Tn11, Tn12, and Tn13 connected to each other, and external terminals Tu2, Tv2, and Tw2 corresponding to each phase. And neutral point terminals Tn21, Tn22, and Tn23 connected to each other (hereinafter, the external terminals Tu1-Tw1, Tu2-Tw2 and the neutral point terminals Tn11-Tn13, Tn21-Tn23 are collectively referred to simply as a terminal T). The 2nd circuit 42 which has these is comprised. The coils connected to the external terminal Tu1 are actually composed of five coils 20, and are identified as series coils u1 to u5 (see FIG. 3), respectively. Similarly, the coils connected to the terminals Tv1, Tw1 are identified as series coils v1-v5 and coils w1-W5. The coils connected to the terminals Tu2, Tv2, and Tw2 are identified as serial coils u6 to u10, coils v6 to v10, and coils w6 to w10, and have 30 coils 20 for convenience.

  As shown in FIG. 3, each coil 20 is provided in an annular shape with an interval of 12 °, and the coil u <b> 1 is formed on a tooth 44 in the vicinity of a conductor guide member 86 c (described later). The coils u2 to u10 are formed in the order of every two counterclockwise with respect to the coil u1. The coil v1 and the coil w1 are formed on the teeth 44 at positions adjacent to the coil u1 in order counterclockwise. The coils v2 to v10 and the coils w2 to w10 are formed in the order of every two counterclockwise with respect to the coil v1 and the coil w1, respectively. The stator core 12 shown in FIG. 3 is in a state after the coil 20 is formed as will be described later and before the lead wire L and the terminal T are crimped and the extra lead wire L is cut.

  As shown in FIGS. 4 and 5, the stator core 12 includes a yoke 46 provided with 30 teeth 44 projecting radially in the outer diameter direction, and an insulator 48 provided on the upper surface of the yoke 46. The yoke 46 has a substantially cylindrical shape, and four protrusions 50 protrude in the inner diameter direction at 90 ° intervals on the inner surface side. A mounting hole 52 is provided at each base portion of the protrusion 50. The yoke 46 is formed by laminating thin laminated steel plates, and the surface of each tooth 44 is covered with a thin insulating material.

  The insulator 48 has a shape in which four hollow attachment portions 56 protrude below the thin annular portion 54, and the insulator 48 is attached to the yoke 46 by inserting each hollow attachment portion 56 between the protrusions 50. It is done. The annular portion 54 is provided with a hole 54 a at a position corresponding to the attachment hole 52, so that the upper surface of the attachment hole 52 is not blocked. The outer diameter of the annular portion 54 is set such that the teeth 44 are exposed when viewed from above.

  Terminal groups 58 a, 58 b, 58 c, and 58 d are provided in an annular order at positions corresponding to above the four hollow mounting portions 56 on the upper surface of the annular portion 54. The terminal group 58a includes the neutral point terminals Tn11, Tn12, and Tn13, the terminal group 58b includes the external terminals Tu1, Tv1, and Tw1, and the terminal group 58c includes the neutral point terminals Tn21, Tn22, and Tn23. The terminal group 58d is composed of the external terminals Tu2, Tv2, and Tw2.

  A V-shaped portion 59, which is a connection portion of the conducting wire L in the external terminals Tu1, Tv1, Tw1, Tu2, Tv2, and Tw2, opens in a substantially clockwise direction (substantially circumferential direction) when viewed from above, and is a neutral point terminal Tn11. , Tn12, Tn13, Tn21, Tn22, and Tn23, the V-shaped portion 59 opens in a substantially counterclockwise direction (substantially circumferential direction). Further, as described above, the neutral point terminals Tn11, Tn12, Tn13 and the neutral point terminals Tn21, Tn22, Tn23 are connected to each other. The V-shaped part 59 here is a part of a shape including a U-shaped, C-shaped or the like having an opening on one side.

  On the other hand, as shown in FIG. 4, the mounting table 32 for mounting the stator core 12 to the motor 14 includes four bosses 60 for positioning and mounting the stator core 12 through the mounting holes 52, and the wire guide jig 34. And 12 support poles 64 disposed inside the hollow mounting portion 56 for supporting each terminal T from below. The mounting base 62 is provided with a positioning hole 62a. The outer diameter of the mounting table 32 is set such that the teeth 44 are exposed when viewed from the lower surface.

  As shown in FIGS. 4, 6, and 7, the conductive wire guide jig 34 attached to the axial center portion of the stator core 12 includes a cylindrical body 65 and an annular ring provided on the upper surface portion of the body 65. Positioned by the auxiliary strut 72, the blade 66, the intermediate elevating part 76 partially inserted into the center strut 70 and the auxiliary strut 72 extending upward from the bottom plate 68 of the body 65 and supported by the spring 74. And an upper surface plate 78 held and fixed to the central column 70. The spring constant of the spring 74 is large, and the amount of compression of the spring 74 due to the weight of the intermediate elevating unit 76 is extremely small. A positioning pin 68a inserted into the positioning hole 62a extends on the lower surface of the bottom plate 68. The annular inner blade 66 has a slightly larger outer diameter than the body 65, and the outer periphery of the annular inner blade 66 is set near the V-shaped portion 59 of the terminal T on the annular portion 54 of the insulator 48.

  The upper surface plate 78 has two arms 80 projecting in the outer diameter direction from the body 65, and extends downward at an end of the arm 80 and is inserted into the mounting hole 52. A pole 80a for positioning and fixing with respect to is provided.

  Further, on the upper surface of the upper surface plate 78, a first relay pin (holding portion, relay portion) 82a and second relay pin 82b extending upward, and a positioning used when the cutting jig 36 is placed. And a hole 84. The two arms 80, the first relay pin 82a, and the second relay pin 82b are arranged symmetrically on a line centering on the axis, and the first relay pin 82a and the second relay pin 82b are each of the radius of the body 65. It is provided at a location having a diameter of approximately 1/3.

  The intermediate elevating unit 76 includes twelve conductor guide members 86 a to 86 l that extend slightly above the upper surface plate 78 and project from the body 65 in a substantially outer diameter direction. The conducting wire guide members 86a to 86l are sequentially arranged in the clockwise direction, and the axial end surfaces 92 at the outer end portions 90a to 90l through the respective arms 88 are in turn the neutral point terminals Tn11, Tn12, Tn13, and the external terminals. Tu2, Tv2, Tw2, the neutral point terminals Tn21, Tn22, Tn23 and the upper surfaces of the external terminals Tu1, Tv1, Tw1 are in contact with or close to each other. As described above, since the compression amount of the spring 74 due to the weight of the intermediate elevating unit 76 is extremely small, the height of the axial end surface 92 is set by the height of the spring 74.

  The angle between the conductor guide member 86a and the conductor guide member 86l and the angle between the conductor guide member 86f and the conductor guide member 86g are set to be slightly larger corresponding to the protrusion 50 (see FIG. 4). Similarly, the angle between the conductor guide member 86c and the conductor guide member 86d and the angle between the conductor guide member 86i and the conductor guide member 86j are set slightly larger, and the arm 80 is provided therebetween. Yes.

  Of the end portions 90a to 90l, the end portions 90a, 90f, 90g, and 90l have the same height as the arm 88, the end portions 90b, 90e, 90h, and 90k slightly protrude upward, and the height of the end portions 90a, 90f, 90g, and 90k It is approximately 1.5 times and is substantially equal to the height of the first relay pin 82a and the second relay pin 82b. The remaining end portions 90 c, 90 d, 90 i and 90 j protrude higher than the end portions 90 b, 90 e, 90 h and 90 k, and the height thereof is approximately twice that of the arm 88.

  As shown in FIG. 7, when viewed from above, the end portions 90a, 90b, 90c, 90g, 90h, and 90i have a smooth shape that slightly bulges counterclockwise from the arm 88, and the other end portions 90d, 90e, 90f, 90j, 90k, and 90l have smooth shapes that slightly bulge clockwise from the arm 88. Further, the conductive wire guide members 86a to 86f and the conductive wire guide members 86g to 86l protrude outward with the first relay pin 82a and the second relay pin 82b as substantially centers, respectively.

  As shown in FIGS. 4 and 6, the cutting jig 36 includes a crown-shaped body 100, positioning pins 102 that protrude downward from the lower surface 101 of the body 100, and twelve protrusions that protrude downward from the outer periphery of the body 100. And an outer blade 104. When the cutting jig 36 is placed on the conducting wire guide jig 34, the lower surface 101 abuts on the upper surface 88 a of the arm 88, and the positioning pin 102 is inserted into the positioning hole 84. Positioning is done. Each outer blade 104 is disposed on the inner diameter side of the end portions 90a to 90l (see FIG. 18), and the tip blade 106 of each outer blade 104 is disposed slightly above the inner ring blade 66. Each outer blade 104 is replaceable.

  The lower surface recess 100a of the body 100 is set to a size that does not interfere with the first relay pin 82a and the second relay pin 82b. The body 100 is provided with a notch 100b at a position facing the arm 80, and the notch 100b is set to a size such that the body 100 and the arm 80 do not interfere with each other.

  Next, a procedure for manufacturing the stator core 12 by using the rotating electrical machine stator manufacturing apparatus 10 configured as described above will be described. In the description using FIGS. 8, 9, 11 to 13, and 15 to 17, the direction of the winding machine body 17 (see FIG. 1 (arrow B1 direction) is the lower side, and the opposite direction is the upper side. Further, the direction is expressed with the center point of the stator core 12 as a reference, for example, “upper left direction”.

  First, as shown in FIG. 1, the stator core 12 is mounted on the mounting table 32, and the wire guide jig 34 is attached to the axial center portion of the stator core 12. As described above, the end surface 92 in the axial direction is in contact with the upper surface of each terminal T and lightly pressed, so that the terminal T does not come out of the insulator 48 in the subsequent steps.

  After the conductor guide jig 34 is mounted, the conductor L is drawn from the winding nozzle 18 to the vicinity of the stator core 12.

  Next, as shown in FIG. 8, the end portion of the conducting wire L is wound around the first relay pin 82a by a predetermined automatic machine or manually and held. At this time, the winding nozzle 18 and the first relay pin 82a are arranged in the lower left direction and the upper left direction, respectively, and the lead wire L between the first relay pin 82a and the winding nozzle 18 is connected to the lead guide member 86a. It passes between the conductor guide members 86l.

  The position of the winding nozzle 18 is set by the second drive mechanism 30. The angle of the first relay pin 82 a, that is, the angle of the stator core 12 is set by the motor 14 and is fixed by the teeth positioning mechanism 16.

  Next, as shown in FIG. 9, the stator core 12 is rotated counterclockwise, and the teeth 44 for forming the coil u <b> 1 are disposed at the lower position P. The position P is a position where the winding is wound around the teeth 44 and is an intermediate position between both ends of the two wing formers 22. At this time, the conducting wire L is pulled with an appropriate tension after contacting the inner diameter side end 87 and the side surfaces 89 of the end portions 90a to 90l in the conducting wire guide member 86a, and a part of the conducting wire L passes through the position P. Is set as follows.

  Next, the winding nozzle 18 starts to rotate in the direction of arrow C in FIG. At this time, in FIG. 9, the winding nozzle 18 starts to move toward the back of the page. Accordingly, as shown in FIG. 10, the conducting wire L in contact with the side surface 89 is pulled downward from the position indicated by the two-dot chain line, that is, vertically downward, from the side surface 89, and the neutral point terminal Tn11. The V-shaped portion 59 is inserted.

  Thus, since the end portion 90a of the conductor guide member 86a is provided directly above the neutral point terminal Tn11, the conductor L can be reliably inserted into the V-shaped portion 59 along the side surface 89. Moreover, since the conducting wire L is held by the first relay pin 82a, an appropriate tension is maintained on the conducting wire L. Moreover, since the V-shaped part 59 is opening in the circumferential direction, it is easy to insert the conducting wire L. Further, even when the upper surface of the terminal T and the lower surface of the axial end surface 92 are slightly separated from each other, the shape is set such that the axial end surface 92 covers the upper surface of the terminal T (see FIG. 21A). Thus, the conducting wire L can be inserted into the V-shaped portion 59 around each axis.

  Thereafter, the winding nozzle 18 is rotated a predetermined number of times, and the wing former 22 and the winding coil pushing mechanism 24 (see FIG. 1) are interlocked to wind the conductive wire L around the teeth 44, as shown in FIG. Thus, the coil u1 is formed.

  Next, as shown in FIG. 12, the stator core 12 is intermittently rotated clockwise by 36 °, and the conductive wire L is wound around the teeth 44 arranged at the position P in order to form the coils u2, u3, u4 and u5. To do. The conducting wires L forming the coils u1 to u5 are connected to the lower surface of the stator core 12 (the back surface of the paper) and are connected in series. At this time, the winding nozzle 18 is stopped in a direction in front of the paper surface in FIG.

  Next, as shown in FIG. 13, the stator core 12 is rotated approximately 150 ° counterclockwise, and the winding nozzle 18 is rotated in the direction of arrow C in FIG. 1 to reach a position Q2 where the height in the vertical direction is slightly lower. Move. At this time, the conducting wire L is hooked on the end portion 90j of the conducting wire guide member 86j, descends along the side surface 89, is detached from the side surface 89, and is inserted into the external terminal Tu1. Because, as shown in FIG. 14, the winding nozzle 18 is initially arranged at a high position Q1, the two-dot chain line conductor L is the end of the conductor guide member 86j having a large upward protruding amount. The end 90j is pulled only by 90j, and the lead wire L is drawn with the rotation of the stator core 12. At this time, since the winding nozzle 18 is lowered from the position Q1 to the position Q2, the conductor L is detached from the side surface 89 of the end portion 90j and is inserted into the V-shaped portion 59 (see FIG. 10) of the external terminal Tu1. Become.

  Moreover, the conducting wire L does not interfere with the end portion 90d that is symmetrical to the end portion 90j around the axis. Furthermore, as shown in FIG. 13, the conducting wire L is set so as to pass between the first relay pin 82a and the second relay pin 82b.

  In addition, when the conducting wire L is removed from the side surface 89 of the end portion 90j and inserted into the external terminal Tu1, the conducting wire L is held by the end portion of the coil u5, so that an appropriate tension is maintained. That is, compared with the time of insertion of the conducting wire L to the neutral point terminal Tn11 (see FIG. 10), the coil u5 functions as a holding portion for the conducting wire L, similarly to the first relay pin 82a.

  Next, as shown in FIG. 15, the stator core 12 is rotated approximately 180 ° counterclockwise, and the winding nozzle 18 is slightly rotated in the direction of arrow C in FIG. Thereby, the direction of the conducting wire L is changed by relaying the second relay pin 82b, and is pulled counterclockwise while engaging the side surface 89 of the conducting wire guide member 86g. In the state shown in FIG. 15, the second relay pin 82b corresponds to the first relay pin 82a and the conductor guide member 86g corresponds to the conductor guide member 86a when compared with the state shown in FIG. The position of the winding nozzle 18 is the same. Accordingly, the coil u6 can be formed on the tooth 44 at the position P in the same manner as the procedure for forming the coil u1 (see FIGS. 10 and 11). At this time, the conducting wire L is removed from the side surface 89 and inserted into the neutral point terminal Tn21. Thereafter, the coils u7 to u10 are formed by the same procedure as the coils u2 to u5.

  Further, thereafter, as shown in FIG. 16, while the stator core 12 is rotated counterclockwise so that the teeth 44 for forming the coil v1 are arranged at the position P, the lead L is turned into the lead guide member 86d, One relay pin 82a and the conductor guide member 86b are routed. This procedure is substantially the same as the procedure described with reference to FIGS. 12 to 14, but the height of the winding nozzle 18 is appropriately adjusted so that the conductor L is engaged with the side surface 89 of the conductor guide member 86 b. . That is, after the conductor L is relayed by the first relay pin 82a, the height of the conductor L is adjusted to be higher than the conductor guide member 86a and lower than the conductor guide member 86b.

  Thus, the conducting wire L is stretched between the U-phase coil u10 and the V-phase coil v1 via the conducting wire guide member 86d, the first relay pin 82a, and the conducting wire guide member 86b, and the first relay pin 82a. Acts as a relay portion that changes the direction of the conductor L approximately in the middle between the conductor guide member 86a and the conductor guide member 86b. Thereby, it is not necessary to connect, cut and hold the conductive wire L between different phases while maintaining the tension of the conductive wire L moderately, and the coils 20 of different phases can be formed continuously.

  Since the direction of the conducting wire L is changed in the middle by the first relay pin 82a, the positions of the conducting wire guide member 86d and the conducting wire guide member 86b are not restricted to each other, and the degree of freedom of arrangement of the corresponding terminal T Is big.

  Thereafter, the coils v1 to v5 are formed in the same manner as the procedure for forming the coils u1 to u5.

  Next, as shown in FIG. 17, while the stator core 12 is rotated counterclockwise so that the teeth 44 for forming the coil v <b> 6 are arranged at the position P, the conductor L is connected to the conductor guide member 86 k and the second relay. The pin 82b and the conductor guide member 86h are routed. This procedure is substantially the same as the procedure described with reference to FIGS. 12 to 14 as described above, but in this procedure, the winding nozzle 18 is moved to engage the conductor L with the conductor guide member 86j. In the current procedure, the initial position of the winding nozzle 18 is set to the position Q1 in order to engage the conductor L with the end portion 90k of the conductor guide member 86k, which is disposed at the high position Q1 (see FIG. 14). Lower position Q3 (see FIG. 14).

  In addition, when the conductor L is engaged with the conductor guide member 86h after the conductor L is relayed by the second relay pin 82b, the height of the winding nozzle 18 is set in the same manner as the procedure of engaging with the conductor guide member 86b. Adjust as appropriate.

  Thereafter, the coils v6 to v10, the coils w1 to w5 and the coils w6 to w10 are formed by the same procedure as described above, and the end of the winding end conductor L is engaged with the first relay pin 82a. By cutting, all the coils u1 to u10, the coils v1 to v10, and the coils w1 to w10 are formed as shown in FIG. As is apparent from the above description and FIG. 3, the conducting wire L is continuous without being cut halfway from the coil u1 formed first to the coil w10 formed last. The ends of the coils u1, v1, w1 and the coils u6, v6, w6 are securely inserted into the V-shaped portions 59 of the intermediate terminals Tn11, Tn12, Tn13 and the external terminals Tu1, Tv1, Tw1, respectively. The ends of u6, v6, w6 and coils u10, v10, w10 are securely inserted into the V-shaped portions 59 of the intermediate terminals Tn21, Tn22, Tn23 and the external terminals Tu2, Tv2, Tw2, respectively.

  Further, the apparent six conductive wires L at the portion where the first relay pin 82a and the second relay pin 82b are relayed are relayed by being uniformly pulled by the winding nozzle 18, so that the tension becomes uniform. . Therefore, the impedance of each coil 20 becomes uniform, and stable quality as the stator core 12 can be maintained.

  Furthermore, each conductor L is in contact with the inner diameter side end 87 of the conductor guide members 86a to 86l between the terminal T and the first relay pin 82a or the second relay pin 82b, and the angle is slightly bent. L is inserted in parallel with the V-shaped portion 59 of the terminal T.

  Next, as shown in FIG. 18, a cutting jig 36 is attached to the conducting wire guide jig 34 from above. At this time, by inserting the positioning pin 102 (see FIG. 4) into the positioning hole 84, the cutting jig 36 is positioned, and the first relay pin 82a (see FIG. 19), the second relay pin 82b, and the arm 80 are positioned. Fits into the lower surface recess 100a (see FIG. 19) and the notch 100b of the conductor guide jig 34 and does not interfere with each other.

  As shown in FIG. 19, by attaching the cutting jig 36 to the wire guide jig 34, the lower surface 101 of the body 100 is in contact with or close to the upper surface 88a of the arm 88 (see FIG. 20A). The tip blade 106 of 104 is arrange | positioned in the close position above the conducting wire L (refer FIG. 20B). As is clear from FIG. 19, the conducting wire L is disposed so as to pass over the upper surface of the annular inner blade 66. Further, as described above, the axial end surfaces 92 are in contact with the upper surface of the terminal T, respectively.

  Next, the spring 74 is compressed by pressing the upper surface of the cutting jig 36 with the press 38, and the intermediate lifting unit 76 is lowered together with the cutting jig 36. Accordingly, first, as shown in FIG. 21A, the V-shaped portion 59 of the terminal T is slightly compressed by the axial end surface 92 and the support pole 64, and the conducting wire L is sandwiched and fixed. Thus, in a state where the conducting wire L is already fixed, as shown in FIG. 21B, the leading edge blade 106 of the outer blade 104 contacts the upper surface of the conducting wire L, and the conducting wire L is connected to the leading edge blade 106 and the annular inner blade 66. Sandwiched between.

  Further, by pressing and lowering the cutting jig 36 with the press 38, the axial end face 92 compresses the terminal T and slightly deforms the conductor L as shown in FIGS. Secure and crimp. At this time, as shown in FIG. 23B, cutting is performed by the tip blade 106 and the annular inner blade 66.

  Note that the pressing process by the press 38 does not need to be performed with the mounting table 32 attached to the motor 14 as shown in FIG. 1, and may be performed on a predetermined bench.

  Thus, by pressing the cutting jig 36 with the press 38, the crimping operation and the cutting operation of the conducting wire L at 12 locations can be performed at a time. Moreover, since the conducting wire L is fixed first by performing the crimping operation slightly earlier than the cutting operation, the conducting wire L does not come apart after cutting, and the conducting wire L can be kept in a uniform and appropriate tension. it can.

  Further, as described above, since the outer periphery of the annular inner blade 66 is disposed on the annular portion 54, the conducting wire L is cut on the annular portion 54, and the end portion of the cut conducting wire L is the stator core 12. It does not protrude to the inner diameter side. Therefore, the conducting wire L does not interfere with or short-circuit the member provided on the inner diameter side of the stator core 12. Since each conducting wire L is inserted in parallel with the terminal T, it is surely crimped and it is difficult for bonding failure to occur.

  Further, since the annular inner blade 66 is set in the vicinity of the V-shaped portion 59 of the terminal T, an extra portion protruding from the V-shaped portion 59 can be shortened as much as possible.

  As described above, according to the rotating electrical machine stator manufacturing apparatus 10 according to the present embodiment, the conductor L can be reliably inserted into the terminal T by the conductor guide members 86 a to 86 l of the conductor guide jig 34. Further, by relaying the first relay pin 82a and the second relay pin 82b, the directions of the conductor guide members 86a to 86l and the terminal T can be freely set in design.

  Furthermore, the stator manufacturing apparatus 10 for a rotating electrical machine can basically form each coil 20 by interlocking only a total of two axes of the motor 14 and the winding nozzle 18, and has a simple and inexpensive configuration. can do.

  Furthermore, in the process of forming each coil 20, the conducting wire L is continuously wound around each tooth 44 through the first relay pin 82a and the second relay pin 82b, and the conducting wire L is cut for each phase. Since it is not necessary, the winding operation can be performed efficiently without being interrupted.

  Since the end portions 90a to 90l of the conducting wire guide members 86a to 86l are set to different heights according to the process corresponding to each phase, the work of extending the conducting wire L between the two coils 20 is ensured, and It can be done easily.

  In addition, by using the cutting jig 36, the work of crimping the lead wire L to the terminal T and the work of cutting the lead wire L at once and in a very short time regardless of the number of phases or the number of terminals T. Can do. In addition, since the cutting jig 36 and the press 38 are used after all the coils 20 are formed, the cutting jig 36 and the press 38 are substantially the winding machine body 17 (see FIG. 1) and the winding nozzle. The winding machine main body 17 and the winding nozzle 18 can have a simple configuration.

  The circuit of the stator core 12 has been described as being composed of the first circuit 40 and the second circuit 42 as shown in FIG. 2, but it goes without saying that it may be a single circuit. In this case, as shown in FIG. 24, between the coil u5 and the coil u6, between the coil v5 and the coil v6, and between the coil w5 and the coil w6 are continuously wound, The two relay pins 82b and the conductor guide members 86g to 86l can be omitted.

  The stator manufacturing apparatus for a rotating electrical machine according to the present invention is not limited to the above-described embodiment, but can of course adopt various configurations without departing from the gist of the present invention.

It is a schematic perspective view of the manufacturing apparatus of the stator for rotary electric machines which concerns on this Embodiment. It is a connection diagram of a stator core. It is a top view of a stator core and a conductor guide jig in a state where all coils are formed. It is a disassembled perspective view of a mounting base, a stator core, a conducting wire guide jig, and a cutting jig. It is a perspective view of the stator core of the previous stage in which a coil is formed. It is sectional drawing of a mounting base, a stator core, a conducting wire guide jig, and a cutting jig. It is a perspective view of a conducting wire guide jig and an insulator. It is a top view which shows the first procedure which winds conducting wire around a stator core. It is a top view which shows the 2nd procedure which winds conducting wire in a stator core. It is a partially expanded perspective view which shows a mode that a conducting wire is inserted in the terminal T from the side surface of a conducting wire guide member. It is a top view which shows the 3rd procedure which winds conducting wire in a stator core. It is a top view which shows the 4th procedure which winds conducting wire in a stator core. It is a top view which shows the 5th procedure which winds conducting wire in a stator core. It is a schematic side view which shows a mode that a conducting wire is made to follow the side surface of the edge part of a conducting wire guide member. It is a top view which shows the 6th procedure which winds conducting wire in a stator core. It is a top view which shows the 7th procedure which winds conducting wire in a stator core. It is a top view which shows the 8th procedure which winds conducting wire in a stator core. It is a partially expanded perspective view which shows the state which mounted | wore the conductor guide jig with the cutting jig. It is a partially expanded sectional view which shows the state which mounted | wore the conducting wire guide jig with the cutting jig. FIG. 20A is a side view showing the positional relationship between the axial end surface of the conductor guide member and the terminal when the cutting jig is attached to the conductor guide jig, and FIG. 20B shows the cutting jig in the conductor guide jig. It is a side view which shows the positional relationship with the front-end | tip blade of an outer blade, a conducting wire, and an annular inner blade at the time of mounting | wearing. FIG. 21A is a side view showing the positional relationship between the axial end surface of the conductor guide member and the terminal while the cutting jig is being pressed by the press, and FIG. 21B is a diagram showing the pressing of the cutting jig by the press. It is a side view which shows the positional relationship with the front-end | tip blade of an outer blade, a conducting wire, and a ring inner blade in the middle. It is a partially expanded sectional view which shows the state which pressed the cutting jig | tool to the axial direction by the press means. FIG. 23A is a side view showing the positional relationship between the axial end surface of the conductor guide member and the terminal when the conductor is cut by the cutting jig, and FIG. 23B is a diagram when the conductor is cut by the cutting jig. It is a side view which shows the positional relationship with the front-end | tip blade of an outer blade, conducting wire, and an annular inner blade. It is a top view which shows the modification of a stator core, and the modification of a conducting wire guide jig.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Manufacturing apparatus 12 ... Stator core 14 ... Motor 18 ... Winding nozzle 20 ... Coil 32 ... Mounting stand 34 ... Conductor guide jig 36 ... Cutting jig 38 ... Press 44 ... Teeth 46 ... Yoke 48 ... Insulator 59 ... V shape Portion 64 ... Support pole 66 ... Ring inner blade 74 ... Spring 76 ... Intermediate lifting / lowering part 82a, 82b ... Relay pins 86a to 86l ... Conducting wire guide member 87 ... Inner diameter side end 89 ... Side 90a to 90l ... End 92 ... Axis Direction end face 104 ... Outer blade 106 ... Tip blade L ... Conductor T ... Terminal

Claims (6)

In an apparatus for manufacturing a stator for a rotating electrical machine, comprising a stator core in which ends of coil conductors formed on teeth on the outer diameter side of a plurality of terminals provided on an axial end surface are joined to the terminals. ,
A conductor guide jig mounted on the axial center of the stator core;
The conducting wire guide jig protrudes in the outer diameter direction, and the guide portion is arranged in such a manner that the axial end surface is close to or in contact with the terminal;
A holding portion for holding the conducting wire;
With
The conducting wire held by the holding portion is stretched along the side surface of the guide portion, and then pulled in a predetermined direction to be detached from the side surface and inserted into the terminal. A device for manufacturing a stator for a rotating electrical machine. In the manufacturing apparatus of the stator for rotary electric machines according to claim 1,
The conducting wire is stretched between the two coils of different phases via the two guide portions and the holding portion,
The said holding | maintenance part acts as a relay part which changes the direction of the said conducting wire in the middle of the two said guide parts, The manufacturing apparatus of the stator for rotary electric machines characterized by the above-mentioned. The apparatus for manufacturing a stator for a rotating electrical machine according to claim 1,
Rotating means for intermittently rotating the stator core;
A rotatable winding means provided in the outer diameter direction of the stator core for winding the conductive wire around the teeth to form the coil;
Have
The said winding means makes the said conducting wire follow the said side surface of the said guide part in response to the said rotation means, The manufacturing apparatus of the stator for rotary electric machines characterized by the above-mentioned. In the manufacturing apparatus of the stator for rotary electric machines according to claim 1,
The guide is provided in a number corresponding to the number of phases of the stator for the rotating electrical machine, and the guide is set so that the height in the axial direction is different corresponding to each phase. Electric stator manufacturing equipment. In the manufacturing apparatus of the stator for rotary electric machines according to claim 1,
The guide portion is provided so as to be movable in the axial direction by receiving a force from a predetermined pressing means, and when the guide portion moves in the axial direction, the axial end surface presses the plurality of terminals to connect the terminals. And a stator for a rotating electrical machine, wherein the lead wire is crimped at once. In the manufacturing apparatus of the stator for rotary electric machines according to claim 5,
Furthermore, it has a cutting jig that cuts the conducting wires inserted into the plurality of terminals at a time in the vicinity of each terminal by being pressed in the axial direction by the pressing means,
The said cutting jig | tool cuts the said conducting wire, after the said terminal and the said conducting wire are fixed by the said axial direction end surface, The manufacturing apparatus of the stator for rotary electric machines characterized by the above-mentioned.

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