JP5628096B2 - Coil conductor winding method and winding device - Google Patents

Description

  The present invention relates to a winding method and a winding device for a coil conductor, and more specifically, a coil conductor wound around a split core portion constituting a stator core of a rotating electrical machine is wound around a pulley at the time of manufacturing the split core portion. The present invention relates to a winding method for winding and a winding device.

  2. Description of the Related Art Conventionally, a stator core incorporated in a rotating electrical machine is formed by arranging a plurality of divided core portions in a ring shape having a divided iron core, an insulator surrounding a part of the divided iron core, and a coil wire wound around the insulator. Is done.

  Patent Document 1 discloses an attachment / detachment station for removing one split core portion from a gripping jig, a winding station for forming a coil by winding a coil conductor around an insulator, and one end and the other end of the wound coil conductor. A stator core manufacturing apparatus is disclosed in which an end forming station for moving a coil conductor to a terminal and an end connection station for connecting one end and the other end of a coil conductor to each terminal are provided concentrically spaced apart at 90 ° intervals. Yes. Therefore, this stator core manufacturing apparatus is configured to manufacture one split core part by connecting one end and the other end of the coil conductor to the two terminals after winding the coil conductor around the insulator.

JP 2009-65732 A

  By the way, after arranging a plurality of divided core portions around which the coil conductors are wound around the insulator in an annular shape, the end portions of the coil conductors are housed in the grooves formed along the circumferential direction on the outer peripheral surface of each insulator. In the stator core manufactured by being routed to the position of the connection terminal, when the divided core portions are arranged in an annular shape, the ends of the coil conductors of the divided core portions respectively extend in the outer diameter direction of the stator core. It becomes a state. Therefore, it is desirable to save space when manufacturing the stator core by winding the end of the coil conductor around the pulley in advance.

  However, in the stator core manufacturing apparatus of Patent Document 1, after each divided core portion is arranged in an annular shape, the end portion of the coil conductor is housed in the groove portion formed on the outer peripheral surface of each insulator and routed to the position of the connection terminal. It is not an assumed device configuration.

  Also, when winding the end of the coil conductor around the pulley, it is desirable to rotate the pulley with the tip of the end of the coil conductor fixed to the pulley to wind the coil conductor. Providing a special mechanism increases the manufacturing cost.

  The present invention has been made in consideration of such a problem. The end of the coil conductor is housed in a groove formed on the outer peripheral surface of the insulator, and the stator core is routed to the position of the connection terminal of the rotating electrical machine. To provide a winding method and a winding device for a coil conductor that can be wound with a simple device configuration in which the end of the end of the coil conductor is fixed to a pulley with a simple device configuration. With the goal.

In order to achieve the above object, the present invention provides a winding method for winding a coil conductor around a pulley,
A first step of inserting an end of the coil conductor into a conductor end holding groove provided inward from the outer peripheral side of the pulley;
A second step of loosening a part of the coil conductor extending from the conductor end holding groove by moving the pulley in a state where the end of the coil conductor is inserted into the conductor end holding groove; ,
A third step of winding the coil conductor around the pulley by rotating the pulley in a state where a part of the coil conductor is loosened;
It is characterized by that.

Further, the present invention is a winding device for winding the coil conductor around the pulley,
A pulley support mechanism for supporting the pulley rotatably and movablely;
In the pulley, a conductor end holding groove into which an end of the coil conductor can be inserted is provided from the outer peripheral side of the pulley toward the inside,
The pulley support mechanism moves a part of the coil conductor extending from the conductor end holding groove by moving the pulley in a state where the end of the coil conductor is inserted into the conductor end holding groove. The coil conductor is wound around the pulley by loosening and rotating the pulley in a state where a part of the coil conductor is loosened.

  According to the present invention, the pulley is moved in a state where the end portion of the coil conductor is inserted into the conductor end holding groove, and a part of the coil conductor is loosened. The end of the coil conductor is bent in the vicinity of the insertion opening of the conductor end holding groove while applying the force to insert the coil conductor into the end of the conductor end holding groove with the stiffness of the conductor. be able to. As a result, even if the pulley is rotated, the coil conductor can be wound around the pulley without the end of the coil conductor coming out of the conductor end holding groove. Therefore, according to the present invention, it is possible to wind the coil conductor by fixing the tip of the end of the coil conductor to the pulley with a simple device configuration.

  Here, the conductor end holding groove is provided to be inclined with respect to a radial direction from the outer periphery of the pulley toward the center of the pulley, and in the pulley support mechanism (the third step), the conductor end It is preferable to rotate the pulley in a direction opposite to the inclination direction of the part holding groove. Thereby, the end of the coil conductor can be easily bent near the insertion opening of the conductor end holding groove.

  Moreover, it is preferable to provide the conducting wire guide part which expanded toward the outer-diameter direction from this insertion port in the vicinity of the insertion port of the said conducting wire end part holding groove in the said pulley. Thereby, the edge part of the said coil conducting wire can be easily inserted in the said conducting wire end holding groove.

  Furthermore, it is preferable to provide a relief portion that is recessed toward the center of the pulley along the winding direction of the coil conductor near the insertion opening of the conductor end holding groove in the pulley. Thereby, when the coil conductor is overlapped and wound around the pulley due to the bulge of the end of the coil conductor bent near the insertion opening, the coil conductor can be prevented from protruding from the pulley.

  According to the present invention, it is possible to wind the coil conductor in a state where the end of the coil conductor is fixed to the pulley with a simple device configuration.

It is a top view of the stator integrated in a rotary electric machine. It is a perspective view of the division | segmentation core part of FIG. It is a disassembled perspective view of the division | segmentation core part of FIG. It is a partial perspective view of the insulator of FIG. It is a schematic front view of the winding device concerning this embodiment. It is the top view which expanded and illustrated a part of 1st and 2nd pulley. 7A and 7B are enlarged plan views illustrating the vicinity of the conductor end holding grooves in the first and second pulleys. FIG. 8A is a perspective view illustrating a state in which the split core portion is disposed on the temporary winding pulley, and FIG. 8B is a perspective view illustrating a state in which the starting end portion of the coil wire is spirally wound around the temporary winding pulley. . FIG. 9A is a perspective view showing a state in which the starting end portion of the coil strand is wound, and FIG. 9B is a perspective view showing a state in which the starting end portion of the coil strand is wound up to the insulator. FIG. 10A is a perspective view showing a state in which the terminal end of the coil wire is wound, and FIG. 10B is a perspective view showing a state in which the starting end and the terminal end of the coil strand intersect. It is a perspective view which shows the state by which the starting end part and terminal part of the coil strand were wound by the temporary winding pulley. 12A and 12B are perspective views showing a state in which the winding of the coil wire around the insulator and the temporary winding pulley is completed. FIG. 13A is a plan view schematically showing the insertion of the end of the coil wire into the conductor end holding groove, and FIG. 13B schematically shows a state in which the end of the coil wire is slackened. FIG. 14A and 14B are plan views schematically showing the bending of the end of the coil wire. It is the top view which illustrated typically the start of winding of the coil strand to a 1st pulley or a 2nd pulley. FIG. 16A is a plan view schematically illustrating a state in which the winding of the coil wire around the insulator and the temporary winding pulley is completed, and FIG. 16B is a diagram illustrating a state in which the starting end portion of the coil wire is held at the conductor end portion of the first pulley. It is a top view which shows typically the state which inserted in the groove | channel and the terminal part of the coil strand was inserted in the conducting wire end holding groove of the 2nd pulley. 17A and 17B are plan views schematically showing rotation of the split core portion and the temporary winding pulley, revolution and rotation of the first pulley, and rotation of the second pulley. 18A and 18B are plan views schematically showing a state in which the winding of the starting end of the coil wire to the first pulley and the winding of the terminal end of the coil strand to the second pulley are completed. It is. It is a top view which shows the state which has arrange | positioned the division | segmentation core part, the 1st pulley, and the 2nd pulley on the pallet.

  BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of a coil conductor winding method and winding device according to the present invention will be described below in detail with reference to the accompanying drawings.

  FIG. 1 is a plan view of a stator 10 including a split core portion 14 manufactured by a winding method and a winding device according to the present embodiment. The stator 10 constitutes a rotating electric machine in combination with a rotor (not shown) provided therein, and is used as, for example, an electric motor or a generator.

  The stator 10 is a so-called three-phase Y-connection salient-pole stator, and forms a neutral point with a hollow holder 12 and three-phase input terminals U, V, and W as shown in FIG. And a stator core 16 formed by annularly arranging a plurality (18 in FIG. 1) of divided core portions 14 along the inner peripheral surface 12a of the holder 12.

  The stator core 16 includes six divided core portions 14 each having U-phase, V-phase, and W-phase coils 18. In this case, in the stator core 16, the plurality of divided core portions 14 are arranged in a ring shape, whereby a U phase (U1 phase to U6 phase), a V phase (V1 phase to V6 phase), and a W phase (W1 phase to W6). 1 are arranged in the order of U1, V1, W1, U2,..., U6, V6, W6 in the clockwise direction of FIG.

  Next, among the divided core portions 14 having the coils 18 of the U1 phase to the U6 phase, the V1 phase to the V6 phase, and the W1 phase to the W6 phase, the configuration of one divided core portion 14 is typically shown in FIG. Description will be given with reference to FIG. In addition, the structure of the split core part 14 demonstrated here is a structure common to the split core part 14 of all the phases.

  The split core portion 14 includes a split iron core 24 configured by laminating a plurality of substantially T-shaped metal plates (steel plates) 22 punched by a press, an insulator 26 that electrically insulates the split iron core 24, and an insulator 26. And a coil 18 composed of a coil wire (coil conductor) 18a wound around the split iron core 24. The coil wire 18a is a rectangular wire having a rectangular cross section.

  The substantially T-shaped split iron core 24 includes a yoke portion 24a extending along the arrow C direction (the circumferential direction of the stator core 16) on the arrow B1 direction (direction toward the outside of the stator core 16) side, and an arrow from the yoke portion 24a. It is comprised from the magnetic pole part 24b extended toward B2 direction (direction toward the inner side of the stator core 16). Also, a substantially semicircular fitting recess 32 is formed at the end of the yoke portion 24a in the arrow C2 direction, and an approximately half corresponding to the fitting recess 32 is formed at the end of the yoke portion 24a in the arrow C1 direction. A circular fitting convex portion 34 is formed.

  The insulator 26 is made of an electrically insulating material such as a flexible resin. The insulator 26 protrudes in the direction of arrow B1 from the winding portion 38 around which the coil wire 18a is wound, and the end portion (starting end portion or terminal end portion) of the coil strand 18a extends in the arrow C direction. And a routing portion 40 for routing to the locations of the input terminals U, V, W and the neutral terminal N.

  The winding portion 38 includes an upper winding portion 38a and a lower winding portion 38b that can be fitted in the direction of arrow A (vertical direction).

  The upper winding portion 38a includes an upper winding portion main body 42a having a substantially U-shaped cross section, an upper inner peripheral wall 44a erected at an end in the arrow B2 direction of the upper winding portion main body 42a, and an upper inner peripheral wall. And an upper outer peripheral wall 46a erected on the end of the upper winding portion main body 42a in the direction of the arrow B1 so as to face 44a.

  The lower winding portion 38b has a lower winding portion main body 42b formed in a substantially U-shaped cross section so as to face the upper winding portion main body 42a and a lower winding portion so as to face the upper inner peripheral wall 44a. A lower inner peripheral wall 44b erected at the end in the arrow B2 direction of the part main body 42b, and a lower erected at the end in the arrow B1 direction of the lower winding part main body 42b so as to face the lower inner peripheral wall 44b. Side outer peripheral wall 46b.

  Therefore, when the upper winding portion 38a and the lower winding portion 38b are fitted so as to sandwich the magnetic pole portion 24b of the split iron core 24, the upper winding portion main body 42a, the lower winding portion main body 42b, and the upper inner peripheral wall 44a and the lower inner peripheral wall 44b, and the upper outer peripheral wall 46a and the lower outer peripheral wall 46b are partially overlapped and joined. That is, by inserting the lower winding portion 38b from below the upper winding portion 38a, the upper winding portion 38a and the lower winding portion 38b are integrated to form the winding portion 38. A hole 48 is formed in the center of the winding portion 38 along the direction of arrow B. Thereby, while the magnetic pole part 24b fits in the hole 48, the coil is formed at a location between the upper inner peripheral wall 44a and the lower inner peripheral wall 44b and the upper outer peripheral wall 46a and the lower outer peripheral wall 46b in the winding part 38. The coil 18 is configured by winding the wire 18a.

  On the other hand, the routing portion 40 is provided so as to protrude in the arrow B1 direction from the vicinity of the upper end portion of the upper outer peripheral wall 46a.

  The lead-out portion 40 is formed on the plate-like member 50 and the plate-like member 50, and is substantially U-shaped in the plan view of FIG. 1, and behind the lead wire storage portion 52 (on the back in the direction of arrow B2). And a terminal fixing portion 54 that fixes the terminal portion of the coil wire 18 a wound around the winding portion 38.

  The conducting wire storage portion 52 is configured to be able to store the starting end portion (one end) or the terminating end portion (the other end) of the coil wire 18 a wound around the winding portion 38 in the arrow C direction.

  That is, the conducting wire storage part 52 connects the blocks 52a and 52b standing on the arrow C2 direction side and the arrow C1 direction side of the plate-like member 50 respectively, and the connecting part 52c connecting the back surfaces of the blocks 52a and 52b in the arrow B2 direction. It consists of. The block 52a extends in the direction of the arrow C, and has a width (length along the direction of the arrow A) and a depth (direction of the arrow B) that can accommodate the start end or the end of the rectangular coil wire 18a. Conductive wire end holding grooves 56a to 62a having a depth along the arrow A are provided at predetermined intervals. On the other hand, similarly to the block 52a, the block 52b extends in the direction of the arrow C, and has a width and depth that can accommodate the start end or the end of the coil wire 18a. 62b are provided at predetermined intervals in the arrow A direction. 2 and 3, the conductor end holding groove 56a and the conductor end holding groove 56b, the conductor end holding groove 58a and the conductor end holding groove 58b, the conductor end holding groove 60a and the conductor end. The holding groove 60b, the conductor end holding groove 62a, and the conductor end holding groove 62b are formed at substantially the same height.

  In addition, the portions that define the conductive wire end holding grooves 56a to 62a in the block 52a are bowl-shaped wall portions 66a to 74a that extend in a flat plate shape from the main body portion 64a of the block 52a in the arrow B1 direction and the arrow C2 direction. Configured as Also in the block 52b, as in the case of the block 52a, the portions defining the conductive wire end holding grooves 56b to 62b extend from the main body 64b of the block 52b in a flat plate shape in the arrow B1 direction and the arrow C1 direction. It is comprised as a shape | molded wall part 66b-74b. The wall portions 72a and 72b are connected in the direction of arrow C by a connecting portion 76.

  By the way, in the stator core 16, in each divided core part 14, the coil wire 18a of the rectangular wire of the same shape is each wound, and the coil 18 is comprised. In the conducting wire storage portion 52, the leading end portion or the terminating end portion of the coil wire 18a is routed in the direction of the arrow C in a state where the long side of the rectangular wire is along the direction of the arrow A, and the conducting wire end holding grooves 56a to 62a, It accommodates in 56b-62b. Therefore, each conducting wire end holding groove 56a to 62a, 56b to 62b has substantially the same width (height). Of the conductor end holding grooves 56a to 62a and 56b to 62b, the uppermost conductor end holding grooves 56a and 56b have the same depth as the other conductor end holding grooves 58a to 62a and 58b to 62b. Deeper than this, the other conductor end holding grooves 58a to 62a and 58b to 62b are set to substantially the same depth.

  The conductor end holding groove 56a and the conductor end holding groove 56b, the conductor end holding groove 58a and the conductor end holding groove 58b, the conductor end holding groove 60a, the conductor end holding groove 60b, and the conductor end holding groove 62a. And the conducting wire end holding groove 62b draw and house the starting end or terminating end of the same coil wire 18a.

  Specifically, the starting end portion of each coil wire 18a constituting the U1 phase to U6 phase coil 18 is connected to the input terminal U, and the starting end portion of each coil wire 18a constituting the V1 phase to V6 phase coil 18 is connected. Is connected to the input terminal V, and the starting end of each coil wire 18a constituting the W1 phase to W6 phase coil 18 is connected to the input terminal W, and all phases (U1 to U6 phase, V1 to V6 phase, W1) are connected. The terminal portion of each coil wire 18 a constituting the coil 18 of (˜W6 phase) is connected to the neutral terminal N.

  Therefore, in the deepest conductive wire end holding grooves 56a and 56b, the terminal portions of 18 coil wires 18a in total are drawn and stored from all phases. In this case, an end fixing portion 54 for fixing the end portion of the coil wire 18a is disposed behind the block 52b. As shown in FIG. 4, the terminal fixing portion 54 has a width substantially the same as the width of the long side of the coil wire 18 a, and a standing portion 54 a that stands in the direction of arrow A along the block 52 b, It is comprised from the wall part 54b bulging from the arrow B2 direction side of the standing part 54a. Therefore, in each divided core portion 14, the terminal portion of the coil wire 18 a wound around its own winding portion 38 has the long side of the rectangular wire along the surface of the standing portion 54 a and the short side. The side is fixed to the terminal fixing portion 54 in a state along the wall portion 54b and the block 52b, and is drawn around the conductor end holding grooves 56a and 56b.

  Also, with respect to the other conductor end portion holding grooves 58a to 62a and 58b to 62b having a depth shallower than that of the conductor end portion holding grooves 56a and 56b, the conductor end portion holding grooves 58a and 58b have U1 phase to U6 phase. In total, the start ends of the six coil strands 18a are routed and stored, and the lead end holding grooves 60a, 60b have the start ends of the six coil strands 18a in total from the V1 phase to the V6 phase. The leading end portions of the six coil wires 18a in total in the W1 phase to W6 phase are routed and stored in the conductor end holding grooves 62a and 62b.

  As shown in FIG. 4, the upper end portion of the upper outer peripheral wall 46a on the arrow C2 direction side extends upward from the upper winding portion main body 42a, whereby the coil wire 18a is wound around the winding portion 38. It is configured as a start end fixing portion 80 that locks the start portion (start end portion of the coil wire 18a).

  The split core part 14 which comprises the stator 10 is comprised as mentioned above, and next, about the winding apparatus 100 which concerns on this embodiment used for manufacture of the split core part 14, FIGS. Will be described with reference to FIG.

  FIG. 5 is a schematic side view of the winding device 100.

  In the winding device 100, the coil wire 18 a is wound around the winding portion 38 of one split core portion 14 disposed on the temporary winding pulley 102 to constitute the coil 18, while the starting end of the coil strand 18 a is formed. Are wound around the outer peripheral surface of the temporary winding pulley 102 in the same direction, and the coil strand 18 is wound around the first pulley 104 at the same time as the starting end of the coil wire 18a wound around the temporary winding pulley 102 is wound. This is a device capable of winding the terminal end of 18 a around the second pulley 106.

  The winding device 100 revolves the periphery of the split core portion 14 and the temporary winding pulley 102 with the rotation support mechanism 108 that rotatably supports the split core portion (winding frame) 14 and the temporary winding pulley 102, and the first pulley 104. A first pulley rotation mechanism (pulley support mechanism) 110 that rotates while rotating, and a second pulley rotation mechanism (pulley support mechanism) 112 that rotates the second pulley 106.

  Here, the first pulley 104 and the second pulley 106 will be described with reference to FIGS.

  On the outer peripheral surface of the first pulley 104, a groove 152 for winding up the starting end of the coil wire 18a is formed. In addition, on the disc-shaped shaft portion 210 that forms the bottom surface of the groove portion 152, a conductor end holding groove 190 for inserting and holding the tip of the starting end portion of the coil wire 18a faces inward from the groove portion 152. Is formed. In this case, the conducting wire end holding groove 190 is provided so as to be inclined with respect to the radial direction of the first pulley 104 (direction toward the center of the first pulley 104). Further, in the vicinity of the insertion port 212 at the start end of the coil wire 18a in the conductive wire end holding groove 190, a conductive wire guide portion 214 that is expanded from the insertion port 212 toward the outer diameter direction of the first pulley 104 is formed. ing. Further, in the vicinity of the insertion port 212, the relief slightly recessed toward the center of the first pulley 104 along the direction (the counterclockwise direction in FIGS. 7A and 7B) in which the starting end of the coil wire 18a is wound up. A portion 216 is also formed.

  In the first pulley 104, the leading end of the coil wire 18a is inserted into the conducting wire end holding groove 190 via the conducting wire guide portion 214 and the insertion port 212, and the starting end of the coil wire 18a is near the insertion port 212. After the portion is bent, the starting end portion of the coil wire 18 a is wound around the first pulley 104. In this case, in the first pulley 104, the start end of the coil wire 18 a is wound around the temporary winding pulley 102 by winding the start end of the coil wire 18 a along the groove 152. At this time, the relief portion 216 is formed to prevent the start end portion of the coil wire 18a from bulging near the insertion port 212.

  On the other hand, the second pulley 106 has substantially the same shape as the first pulley 104. That is, a groove 180 for winding the terminal end of the coil wire 18 a is formed on the outer peripheral surface of the second pulley 106, and the disk-shaped shaft portion 220 that forms the bottom surface of the groove 180 has a coil element. A conducting wire end holding groove 192 for inserting and holding the end of the end portion of the wire 18a is formed from the groove portion 180 inward. The conducting wire end holding groove 192 is provided so as to be inclined with respect to the radial direction of the second pulley 106 (direction toward the center of the second pulley 106). Further, in the vicinity of the insertion port 222 at the end of the coil element wire 18a in the conductive wire end holding groove 192, a conductive wire guide portion 224 that is expanded from the insertion port 222 toward the outer diameter direction of the second pulley 106 is formed. ing. Further, in the vicinity of the insertion opening 222, the relief slightly recessed toward the center of the second pulley 106 along the direction (the counterclockwise direction in FIGS. 7A and 7B) in which the end portion of the coil wire 18a is wound up. A portion 226 is also formed.

  In the second pulley 106 as well, the end of the terminal end of the coil wire 18a is inserted into the conductor end holding groove 192 via the conductor lead-in portion 224 and the insertion port 222, and the coil strand 18a near the insertion port 222 is inserted. After the end portion is bent, the end portion of the coil wire 18 a is wound around the second pulley 106. In this case, in the second pulley 106, the terminal portion of the coil wire 18 a is wound up from the temporary winding pulley 102 by overlappingly winding the terminal portion of the coil wire 18 a along the groove portion 180. At this time, the relief portion 226 is formed to prevent the terminal portion of the coil wire 18a from bulging near the insertion port 222.

  For ease of explanation, in FIG. 6, the upper plate portions of the first pulley 104 and the second pulley 106 are broken to form the groove portions 152 and 180, the conductor end holding grooves 190 and 192, and the shaft portion 210, In FIG. 7A and FIG. 7B, the vicinity of the conductive wire end holding grooves 190 and 192 is shown enlarged.

  Returning to FIG. 5, the rotation support mechanism 108 includes a drive source 114, a rotation shaft 116 extending upward from the drive source 114, a fixed core portion 14 and a temporary winding pulley 102 fixed to the tip of the rotation shaft 116. The mounting jig 118 is arranged.

  As shown in FIG. 5, FIG. 12A and FIG. 12B, the mounting jig 118 is attached to the tip of the rotating shaft 116 by fitting the spindle shaft 120 extending downward substantially coaxially with the rotating shaft 116. Fixed.

  The mounting jig 118 includes a base 122 fixed to the tip of the spindle shaft 120, a substantially ring-shaped mounting table 126 supported above by a plurality of spacers 124 erected from the outer peripheral side of the base 122, And a split core portion support base 128 disposed in the center portion. Further, the distal end portion of one spacer 124 extends upward through the mounting table 126 and constitutes a locking portion 130.

  A substantially ring-shaped fitting member 131 is disposed on the mounting table 126. By fitting the substantially ring-shaped temporary winding pulley 102 inside the fitting member 131, the temporary winding pulley 102 is placed on the mounting table 126. Can be arranged.

  The split core portion 14 is inserted through the hole inside the temporary winding pulley 102 and the hole inside the mounting table 126 with the routing portion 40 and the yoke portion 24a (see FIGS. 2 and 3) facing downward. And it mounts on the division | segmentation core part support stand 128. FIG. When the split core portion 14 is placed on the split core portion support base 128, as shown in FIGS. 5, 8A, 8B, 9B, 10A, and 11 to 12B, the split core portion 14 has an external appearance. In addition, the drawing portion 40 and the yoke portion 24 a are disposed inside the temporary winding pulley 102 and the mounting table 126, and the winding portion 38 is disposed so as to extend upward from the temporary winding pulley 102.

  As shown in FIG. 12B, the locking portion 130 temporarily locks the winding end portion of the terminal portion of the coil wire 18a wound around the temporary winding pulley 102, thereby terminating the terminal end of the coil wire 18a. The part is prevented from unwinding from the temporary winding pulley 102.

  The split core portion 14 and the temporary winding pulley 102 arranged on the mounting jig 118 move up and down by the rotation of the rotating shaft 116 under the driving action of the driving source 114 or rotate by the rotation of the rotating shaft 116. It rotates (rotates) around the shaft 116.

  As shown in FIGS. 8A to 12B, a wide first groove portion 132 formed in the circumferential direction of the temporary winding pulley 102 and wound with the starting end portion of the coil wire 18 a is wound on the outer peripheral surface of the temporary winding pulley 102. A narrow second groove 134 formed in the circumferential direction and around which the terminal end of the coil wire 18a is wound is formed. In this case, the first groove 132 is formed on the lower side of the outer peripheral surface of the temporary winding pulley 102 and the second groove 134 is formed on the upper side. In addition, the starting end portion of the coil wire 18 a and the end portion of the coil wire 18 a are wound in the same direction along the outer peripheral surface of the temporary winding pulley 102.

  The width of the first groove 132 is wide enough to be wound spirally so that the starting end of the coil wire 18a is not overwrapped. On the other hand, the width of the second groove portion 134 is set to the width of the long side of the coil wire 18a so that the terminal portion of the coil wire 18a is overwrapped.

  Further, the outer circumferential surface of the temporary winding pulley 102 is provided with a first routing groove portion 136 for routing the starting end portion of the coil wire 18 a wound around the first groove portion 132 to the winding portion 38 of the split core portion 14. It has been. The first routing groove 136 is a winding end portion of the start end of the coil wire 18a in the first groove 132 in order to prevent the start end of the coil wire 18a from being wrinkled in the vertical direction (edgewise direction). To the winding start portion of the coil wire 18a in the winding portion 38 (the position of the starting end fixing portion 80 shown in FIG. 4), the outer circumferential surface of the temporary winding pulley 102 gradually rises over approximately half a circle. It is a groove formed in an arc shape.

  Further, as a result of the coil 18 being formed on the outer peripheral surface of the temporary winding pulley 102 by winding the coil wire 18 a in the winding portion 38, a terminal portion of the coil wire 18 a extending from the winding portion 38 is provided. A second routing groove 138 for routing to the second groove 134 is provided. The second routing groove portion 138 is located at the end of winding of the coil wire 18a in the winding portion 38 so as to prevent the terminal portion of the coil wire 18a from being wrinkled in the vertical direction (edgewise direction) (see FIG. 4 to the predetermined position at the beginning of winding of the terminal end portion of the coil wire 18a in the second groove portion 134, the outer peripheral surface of the temporary winding pulley 102 is approximately 1/4 turn. It is a groove formed in an arc shape that gently descends.

  As shown in FIG. 10B, the depth of the first routing groove 136 is such that the winding around the first routing groove 136 does not cause winding to the starting end and the terminal end of the coil wire 18a. It is desirable that the depth is such that the starting end portion of the coil wire 18a to be touched and the terminal portion of the coil wire 18a wound around the second groove portion 134 and the second routing groove portion 138 are not in contact with each other.

  The first pulley rotating mechanism 110 is moved forward and backward with respect to the rotating shaft 116 by sliding along the arm 140 supported by the rotating shaft 116, a rail 142 disposed on the arm 140, and the rail 142. And a rotary drive source 146 erected on the slider 144, and a central shaft 150 of the first pulley 104 is attached substantially coaxially to a rotary shaft 148 extending upward from the rotary drive source 146. .

  Here, when the rotating shaft 116 rotates under the driving action of the driving source 114, the arm 140 rotates with respect to the rotating shaft 116. Thereby, the first pulley rotating mechanism 110 rotates (revolves) with respect to the split core portion 14, the temporary winding pulley 102, the rotating shaft 116, and the mounting jig 118. Further, when the rotation shaft 148 rotates under the driving action of the rotation drive source 146, the first pulley 104 rotates (spins) about the center shaft 150.

  The first pulley 104 is disposed at substantially the same height as the starting end of the coil wire 18a wound around the temporary pulley 102, and is formed on the outer peripheral surface of the first pulley 104 as described above. The starting end of the coil wire 18a is wound around the groove 152.

  The second pulley rotating mechanism 112 is installed on a rail 162 disposed on the base 160, a slider 164 that can move forward and backward with respect to the rotating shaft 116 by sliding along the rail 162, and the slider 164. A support member 166, a rail 168 disposed in the vertical direction with respect to the support member 166, a slider 170 that slides in the vertical direction along the rail 168, and a support member 172 that extends upward from the slider 170 are supported. The central shaft 178 of the second pulley 106 is attached substantially coaxially to a rotary shaft 176 extending upward from the rotary drive source 174.

  Here, when the rotation shaft 176 rotates under the driving action of the rotation drive source 174, the second pulley 106 rotates (rotates) around the center shaft 178. Further, as described above, the terminal portion of the coil wire 18 a is wound around the groove portion 180 formed on the outer peripheral surface of the second pulley 106.

  As described above, since the first pulley rotating mechanism 110 revolves by the rotation of the rotating shaft 116, the second pulley 106 revolves to the position indicated by the one-dot chain line in FIG. In this case, the first pulley rotation mechanism 110 and the second pulley rotation mechanism 112 are arranged at a desired position so that interference does not occur.

  Next, operation | movement (winding method) of the winding apparatus 100 is demonstrated, referring FIGS. 5-18B. In addition, in this description, it demonstrates, also referring FIGS. 1-4 as needed.

  8A to 12B show the winding of the coil end wire 18a around the outer peripheral surface of the temporary winding pulley 102 and the winding of the coil wire 18a around the winding portion 38 of one split core portion 14. FIG. 13A to FIG. 15 illustrate the start of winding of the start end portion of the coil wire 18a with respect to the first pulley 104 and the coil element with respect to the second pulley 106. FIG. 16A to FIG. 18B schematically illustrate the winding start of the terminal end of the wire 18a. FIGS. 16A to 18B illustrate the winding of the coil wire 18a wound around the temporary pulley 102 to the first pulley 104. The winding and the winding of the terminal portion of the coil wire 18a around the second pulley 106 are schematically shown.

  In the case of winding the coil wire 18a around the winding portion 38 for one split core portion 14, first, the fitting member 131 and the temporary winding pulley 102 are fitted as shown in FIGS. 5 and 8A. The temporary pulley 102 is then placed on the mounting table 126. Next, in a state in which the routing portion 40 and the yoke portion 24a of the split core portion 14 are directed downward, the split core portion 14 is inserted into the holes of the temporary winding pulley 102 and the mounting table 126, and the split core portion support base 128 is inserted. Placed on. As a result, the split core portion 14 is in contact with the split core portion support base 128 and the split core portion 14 is in a state where the winding portion 38 extends upward from the temporary winding pulley 102. 128.

  Next, as shown in FIGS. 8B to 9B, the coil wire 18 a is supplied from a supply device (not shown) to the temporary winding pulley 102, and the starting end portion of the coil wire 18 a is wound around the temporary winding pulley 102.

  In this step, first, as shown in FIG. 8B, the coil wire 18 a is supplied from the supply device to the temporary winding pulley 102, and the starting end portion of the coil wire 18 a is wound around the first groove portion 132. In this case, the start end of the coil wire 18a is started from a predetermined position below the first groove 132, and the start end of the coil wire 18a is wound spirally along the circumferential direction of the first groove 132.

  Specifically, if the rotating shaft 116 is rotated under the driving action of the driving source 114 (see FIG. 5), and the split core portion 14, the temporary winding pulley 102, and the mounting jig 118 are rotated (autorotated), In a state where the supply device is fixed at a predetermined position, the starting end portion of the coil wire 18a can be wound around the first groove portion 132 while the coil wire 18a is fed out from the supply device. As a result, in the first groove portion 132, the starting end portion of the coil wire 18a is wound to a position before the first lead groove portion 136 as shown in FIG. 8B. In addition, the front-end | tip (winding start part) of the starting end part of the coil wire 18a should just be latched by the latching part which is provided in the 1st groove part 132 and which is not shown in figure, for example.

  Thereafter, the rotating shaft 116 is further rotated, and the starting end portion of the coil wire 18 a is routed to the first routing groove portion 136. As shown in FIGS. 8A to 9A and 11, the first routing groove 136 is wound from the winding end position (starting position of the first routing groove 136) of the start end of the coil wire 18 a in the first groove 132. Since the groove portion is formed in an arc shape that gently rises the outer peripheral surface of the temporary winding pulley 102 over approximately half a circle to the position of the start end fixing portion 80 in the portion 38 (end point position of the first routing groove portion 136), Even if the starting end portion of the coil wire 18a is routed around the first routing groove 136, the starting end portion of the coil strand 18a is not wrinkled in the vertical direction. As a result, as shown in FIG. 9B, the starting end portion of the coil wire 18 a is drawn to the end position of the first drawing groove portion 136 and is locked to the starting end fixing portion 80 of the winding portion 38.

  Next, as shown in FIGS. 5 and 10A, the coil 18 is formed by winding the coil wire 18 a around the winding portion 38 of the split core portion 14.

  In this step, the rotating shaft 116 is further rotated under the driving action of the driving source 114 to rotate the split core portion 14, the temporary winding pulley 102, and the mounting jig 118, and the coil wire 18a is removed from the supply device. The coil wire 18a is wound around the winding portion 38 while being fed out. As a result, the coil wire 18 a is wound around the winding portion 38 to form the coil 18.

  In this step, the direction of rotation of the split core portion 14, the temporary winding pulley 102, and the mounting jig 118 (the rotation method of the rotating shaft 116) is determined in the step of winding the starting end portion of the coil wire 18a described above. Of course, it is the same direction as the rotation direction of the core part 14, the temporary winding pulley 102, and the attachment jig 118. Further, in FIG. 10A, illustration of the coil 18 formed in the winding portion 38 is omitted.

  Next, as shown in FIGS. 10A to 12B, the coil wire 18 a is supplied from the supply device to the temporary winding pulley 102, and the terminal portion of the coil wire 18 a is wound around the temporary winding pulley 102.

  In this step, the rotating shaft 116 is further rotated under the driving action of the driving source 114 to rotate the split core portion 14, the temporary winding pulley 102, and the mounting jig 118, and the coil wire 18a is removed from the supply device. While being fed out, the terminal portion of the coil wire 18 a is routed to the second routing groove portion 138.

  As shown in FIGS. 8A to 10B, the second routing groove portion 138 extends from the position of the terminal fixing portion 54 in the winding portion 38 (the start point position of the second routing groove portion 138) to the end of the coil wire 18 a in the second groove portion 134. Since the groove portion is formed in an arc shape that gently descends the outer peripheral surface of the temporary winding pulley 102 over about a quarter of a half turn to a predetermined position at the beginning of winding of the portion, the coil wire is formed in the second routing groove portion 138. Even if the end portion of 18a is routed, the end portion of the coil wire 18a is not wound in the vertical direction.

  Even in this step, the rotating direction of the split core portion 14, the temporary winding pulley 102, and the mounting jig 118 (the rotation method of the rotating shaft 116) is the step of winding the starting end portion of the coil wire 18a described above, and Of course, the direction is the same as the direction of rotation of the split core portion 14, the temporary winding pulley 102, and the mounting jig 118 in the step of forming the coil 18.

  In this way, after the end portion of the coil wire 18a is drawn to a predetermined position at the beginning of winding of the end portion of the coil wire 18a in the second groove portion 134, the rotating shaft 116 is continuously rotated to split the core portion. 14. By rotating the provisional winding pulley 102 and the mounting jig 118, the terminal portion of the coil wire 18a is wound around the second groove portion 134 while the coil wire 18a is fed from the supply device.

  In this case, as shown in FIGS. 10A to 12B, the end portion of the coil wire 18 a is overlapped along the circumferential direction of the second groove portion 134 so as to be wound in the same direction as the start end portion of the coil wire 18 a. Wrap it.

  The first routing groove 136 includes a starting end portion of the coil wire 18a wound around the first routing groove portion 136, and a terminal end of the coil strand 18a wound around the second groove portion 134 and the second routing groove portion 138. Since the depth is set so as not to contact the portion, even if the end portion of the coil wire 18a is wound around the second groove portion 134, the winding wrinkles to the start end portion and the end portion of the coil wire 18a are not caused. Not attached.

  In this way, the end (winding end portion) of the end portion of the coil wire 18 a wound around the second groove portion 134 a predetermined number of times is temporarily locked by the locking portion 130. As a result, it is possible to prevent the terminal portion of the coil wire 18 a wound around the second groove portion 134 from unwinding from the temporary winding pulley 102.

  By performing the above steps, the start and end portions of the coil wire 18 a are wound around the temporary winding pulley 102, and the coil wire 18 a is wound around the winding portion 38 of the split core portion 14. 18 is formed.

  Next, about winding of the start end of the coil wire 18a from the temporary winding pulley 102 to the first pulley 104 and winding of the terminal end of the coil wire 18a from the temporary winding pulley 102 to the second pulley 106, This will be described with reference to FIGS. 13A to 18B.

  Here, first, the leading end (the winding start portion of the start end portion and the winding end portion of the end portion) of the end portion of the coil wire 18a to the conducting wire end holding grooves 190, 192 and the conducting wire end holding grooves 190, 192 are inserted. FIG. 13A to FIG. 15 show the bending of the end portions (start end portion and end end portion) of the coil wire 18a in the vicinity and the winding start of the end portion of the coil wire 18a by the first pulley 104 and the second pulley 106. This will be described with reference to the schematic plan view. Next, the flow from the start of winding of the end of the coil wire 18a to the completion of winding will be described with reference to FIGS. 16A to 18B.

  First, as a first step, in a plan view of FIG. 13A, the winding start portion of the starting end portion of the coil wire 18a is stretched substantially linearly from the temporary winding pulley 102 toward the first pulley 104. The winding start portion is inserted into the conducting wire end holding groove 190 of the pulley 104. On the other hand, the winding end portion of the terminal portion of the coil wire 18a is also inserted into the conducting wire end holding groove 192 of the second pulley 106 in a state of being stretched substantially linearly from the temporary winding pulley 102 toward the second pulley 106. To do.

  In this case, since the conductor lead-in portions 214 and 224 are formed in the vicinity of the insertion ports 212 and 222 of the conductor end holding grooves 190 and 192, respectively (see FIG. 7A), the conductor end holding grooves 190 and 192 are coiled. The winding start portion at the start end and the winding end portion at the end of the strand 18a can be easily inserted.

  Next, as a second step, as shown in FIG. 13B, the first pulley 104 and the second pulley are inserted in the state where the start end and the end of the coil wire 18 a are inserted into the conductor end holding grooves 190 and 192, respectively. The pulley 106 is moved to the temporary pulley 102 side.

  Specifically, for the first pulley 104, the slider 144 is slid toward the rotating shaft 116 along the rail 142 (see FIG. 5). As described above, the conductor end holding groove 190 is provided to be inclined with respect to the radial direction of the first pulley 104 toward the central axis 150. Therefore, when the first pulley 104 moves to the temporary pulley 102 side and the distance between the first pulley 104 and the temporary pulley 102 becomes short, the starting end of the coil wire 18a inserted into the conductor end holding groove 190 At the winding start portion of the part, due to the stiffness of the starting end, a force toward the insertion direction of the conducting wire end holding groove 190 (a force applied to the starting end of the coil wire 18a so as to go to the back of the conducting wire end holding groove 190) The first pulley 104 is slightly rotated counterclockwise in FIG. 13B by the pressing force. As a result, the starting end portion of the coil wire 18a between the insertion port 212 of the conducting wire end holding groove 190 and the temporary winding pulley 102 can be loosened in the counterclockwise direction. In addition, when the pushing force is applied to the winding start portion, the winding start portion can be prevented from coming off from the conductor end holding groove 190.

  On the other hand, for the second pulley 106, the slider 164 is slid toward the rotating shaft 116 along the rail 162 (see FIG. 5). Even in this case, the conducting wire end holding groove 192 is inclined with respect to the radial direction of the second pulley 106 toward the central axis 178, so that the second pulley 106 moves to the temporary winding pulley 102 side. When the distance between the second pulley 106 and the temporary winding pulley 102 is shortened, the winding end portion of the terminal end of the coil wire 18a inserted into the conductor end holding groove 192 is caused by the stiffness of the terminal end, A force is applied in the insertion direction of the conductive wire end holding groove 192 (a force applied to the terminal end of the coil wire 18a so as to go to the back of the conductive wire end holding groove 192, hereinafter also referred to as pushing force). The second pulley 106 is slightly rotated counterclockwise in FIG. 13B by the pressing force. Even in this case, the terminal end portion of the coil wire 18a between the insertion opening 222 of the conducting wire end holding groove 192 and the temporary winding pulley 102 can be loosened in the counterclockwise direction. Further, when the pushing force is applied also at the winding end portion, it is possible to prevent the winding end portion from coming off from the conductor end holding groove 192.

  When the starting end and the terminal end of the coil wire 18a are loosened and elastically deformed as shown in FIG. 13B, the starting end and the terminal end of the coil strand 18a are provided at the starting end and the terminal end of the coil wire 18a. Depending on the stiffness of the part, a force for returning to the original straight shape shown in FIG. 13A is generated. Therefore, due to the force, the winding start portion of the starting end portion of the coil wire 18a is pushed toward the back of the conductor end holding groove 190, while the winding end portion of the coil strand 18a is wound. A pushing force toward the back of the conductor end holding groove 192 is applied to the end portion.

  Next, as a third step, as shown in FIGS. 14A to 15, by rotating the first pulley 104 and the second pulley 106 with the start end and the end end of the coil wire 18 a slackened, The starting end of the coil wire 18 a is wound around the first pulley 104, and the terminal end of the coil wire 18 a is wound around the second pulley 106.

  Specifically, with respect to the first pulley 104, the rotation drive source 146 is driven to rotate the rotation shaft 148, whereby the first pulley 104 is inserted in the clockwise direction of FIGS. 14A to 15 (insertion of the conductor end holding groove 190). Rotate in the direction (the direction opposite to the tilt direction).

  Thus, at the start of rotation in FIG. 14A, the starting end portion of the coil wire 18a between the insertion port 212 of the conducting wire end holding groove 190 and the temporary winding pulley 102 is more loosened than before rotation in FIG. 13B. Therefore, a larger pressing force is applied to the winding start portion of the starting end portion of the coil wire 18a toward the insertion direction of the conducting wire end holding groove 190.

  As a result, due to the start of clockwise rotation of the first pulley 104 and the pressing force applied to the starting end portion of the coil wire 18a, the location near the insertion port 212 at the starting end portion of the coil strand 18a The portion holding groove 190 is bent approximately 90 ° counterclockwise. Moreover, since the said winding start part further advances to the conducting wire end part holding groove 190 due to the said pressing force, the removal | extraction from the conducting wire end part holding groove 190 can be prevented reliably.

  As shown in FIG. 14B, when the first pulley 104 is further rotated in the clockwise direction, the first pulley of the leading end portion of the coil wire 18a inserted into the conducting wire end holding groove 190 is placed on the first pulley. A tension in the direction toward the outer side of 104 is applied, and a tension in the direction toward the temporary winding pulley 102 is applied to a portion from the insertion port 212 to the temporary winding pulley 102. However, since the portion near the insertion port 212 at the start end of the coil wire 18a is bent due to the pressing force, even if the above-described tension is applied, the coil wire is removed from the conductor end holding groove 190. The tip of the starting end of 18a never comes off.

  As a result, as shown in FIG. 15, when the first pulley 104 continues to rotate clockwise, the starting end of the coil wire 18 a wound around the temporary pulley 102 is reliably wound around the first pulley 104. Is possible. In this case, the starting end portion of the coil wire 18a is overlapped and wound around the groove portion 152 of the first pulley 104. However, by providing the escape portion 216 near the insertion port 212, the starting end portion of the coil strand 18a is overlapped and wound. Even so, it is possible to prevent the coil wire 18 a from protruding from the first pulley 104.

  On the other hand, as in the case of the first pulley 104, the second pulley 106 is driven in the clockwise direction (FIG. 14A to FIG. 15) by driving the rotation drive source 174 and rotating the rotation shaft 176. What is necessary is just to rotate to the direction opposite to the insertion direction of the conducting wire end holding groove 192).

  Thereby, at the start of the rotation of FIG. 14A, the terminal end portion of the coil wire 18a between the insertion port 222 of the conducting wire end holding groove 192 and the temporary winding pulley 102 is further loosened than before the rotation of FIG. 13B. Therefore, a larger pressing force is applied to the winding end portion of the terminal portion of the coil wire 18a in the insertion direction of the conductor end holding groove 192.

  As a result, due to the start of the clockwise rotation of the second pulley 106 and the pressing force applied to the terminal end of the coil wire 18a, the location near the insertion port 222 at the terminal end of the coil wire 18a The portion holding groove 192 is bent approximately 90 ° counterclockwise. Further, since the winding end portion further proceeds to the conductor end holding groove 192 due to the pressing force, it is possible to reliably prevent the lead end holding groove 192 from coming off.

  As shown in FIG. 14B, when the coil wire 18a is further rotated in the clockwise direction, the distal end portion of the coil wire 18a is inserted into the lead wire end holding groove 192 to the outside of the second pulley 106. A tension in the direction toward the temporary winding pulley 102 is applied to a portion from the insertion port 222 to the temporary winding pulley 102. In this case, since the portion near the insertion opening 222 at the terminal end of the coil wire 18a is bent due to the pressing force, the coil element is held from the conductor end holding groove 192 even when the above tension is applied. The tip of the end of the line 18a does not come off.

  As a result, also in the second pulley 106, as shown in FIG. 15, when the second pulley 106 continues to rotate in the clockwise direction, the terminal portion of the coil wire 18a wound around the temporary winding pulley 102 is surely connected to the second pulley 106. It becomes possible to wind it around the two pulleys 106. Further, when the end portion of the coil wire 18 a is overlapped with the groove portion 180 of the second pulley 106, the escape portion 226 near the insertion port 222 can prevent the coil wire 18 a from protruding from the second pulley 106. it can.

  The winding of the starting end portion of the coil wire 18a by the first pulley 104 and the winding of the end portion of the coil wire 18a by the second pulley 106 in the present embodiment are generally as described above.

  Next, the winding of the starting end portion of the coil wire 18a by the first pulley 104 and the winding of the terminal portion of the coil wire 18a by the second pulley 106 will be described in more detail in relation to the entire winding device 100. Explained.

  In the steps of FIGS. 16A to 18B, first, the winding start portion of the starting end portion of the coil wire 18 a wound around the first groove portion 132 is gripped by the gripping jig 194 and wound around the second groove portion 134. The end portion of the coil wire 18 a locked to the locking portion 130 is gripped by the gripping jig 196.

  Next, as shown in FIG. 16B, the gripping jig 194 is spaced apart from the start end of the coil wire 18a after inserting the winding start portion of the start end of the coil wire 18a into the conductor end holding groove 190. On the other hand, the gripping jig 196 is separated from the end portion of the coil wire 18a after inserting the winding end portion of the end portion of the coil wire 18a into the conducting wire end holding groove 192. In this case, the insertion of the winding start portion of the starting end portion of the coil wire 18a into the conducting wire end holding groove 190 and the insertion of the winding end portion of the end portion of the coil strand 18a into the conducting wire end holding groove 192 are described above. Of course, the first to third steps may be applied.

  In this way, the winding start portion of the starting end portion of the coil wire 18a is held by the first pulley 104, and the winding end portion of the terminal end portion of the coil strand 18a is held by the second pulley 106, and then the winding is performed. The take-off device 100 adjusts the height positions of the first pulley 104 and the second pulley 106 to the state shown in FIG. 5, and then rotates the rotating shaft 116 by driving the drive source 114 (see FIG. 5). The rotation of the rotation shaft 148 by the drive of the drive source 146 and the rotation of the rotation shaft 176 by the drive of the rotation drive source 174 are simultaneously started.

  As a result, as shown in FIGS. 5 and 17A, the split core portion 14, the temporary winding pulley 102, and the mounting jig 118 start rotating by the rotation of the rotating shaft 116. In addition, the first pulley 104 starts revolving and rotating with respect to the split core portion 14, the temporary winding pulley 102, and the mounting jig 118 by the rotation of the arm 140 and the rotation of the rotation shaft 148 due to the rotation of the rotation shaft 116. To do. Further, the second pulley 106 starts to rotate by the rotation of the rotating shaft 176.

  Here, as shown in FIG. 17A, when the split core portion 14 and the temporary winding pulley 102 rotate in the clockwise direction, the first pulley 104 revolves clockwise with respect to the split core portion 14 and the temporary winding pulley 102. While rotating in the counterclockwise direction, the second pulley 106 rotates in the clockwise direction. Thus, since the split core portion 14 and the temporary winding pulley 102, the first pulley 104, and the second pulley 106 rotate and / or rotate in cooperation, the first groove portion 132 (see FIG. 8A to 12B), the coil is wound around the groove portion 152 of the first pulley 104 at the same time as the coil end wire 18a wound in a spiral manner, and at the same time, the coil is overlapped by the second groove portion 134 of the temporary winding pulley 102. The end portion of the strand 18a can be wound around the groove portion 180 of the second pulley 106, and the start end and the end portion of the coil strand 18a wound around the temporary winding pulley 102 can be wound at high speed. .

  In this case, the above-described third step is applied to the winding of the starting end portion of the coil wire 18a to the first pulley 104 and the winding of the terminal end portion of the coil wire 18a to the second pulley 106. Of course.

  Further, in the winding device 100, the position of the first pulley 104 and the second pulley 106 is adjusted before the first end and the end of the coil wire 18a are simultaneously wound by the first pulley 104 and the second pulley 106. As shown in FIGS. 5 and 17B, even when the first pulley 104 and the second pulley 106 come close to each other due to the revolution of the first pulley 104, the first pulley rotating mechanism 110 and the second pulley rotating mechanism 112 are used. Winding of the starting end and the terminal end of the coil wire 18a can be continued while avoiding the occurrence of interference with the coil wire 18a.

  The starting end portion of the coil wire 18a is also routed to the first routing groove portion 136 of the temporary winding pulley 102, while the terminal portion of the coil wire 18a is connected to the second routing groove portion 138 of the temporary winding pulley 102. Has also been routed. Accordingly, the first pulley 104 revolves and rotates to the point where the starting end of the coil wire 18a wound around the first groove 132 and the first routing groove 136 can be wound, and the second pulley 106 is rotated to the second groove 134. And it rotates to the place which can wind up the termination | terminus part of the coil strand 18a wound by the 2nd drawing groove part 138. FIG.

  Then, as shown in FIG. 18A, the winding of the starting end portion of the coil wire 18a wound around the temporary winding pulley 102 to the first pulley 104 is completed, and the coil element wound around the temporary winding pulley 102 is completed. When the winding of the end portion of the wire 18a to the second pulley 106 is completed, the winding device 100 stops the driving of the driving source 114, the rotating driving source 146, and the rotating driving source 174, and the split core unit 14, The rotation of the temporary pulley 102 and the mounting jig 118, the revolution and rotation of the first pulley 104, and the rotation of the second pulley 106 are stopped.

  Next, as shown in FIG. 18B, the split core portion 14 is removed from the mounting jig 118, the first pulley 104 is removed from the rotating shaft 148, and the second pulley 106 is further removed from the rotating shaft 176. The split core portion 14, the first pulley 104, and the second pulley 106 are separated from 100.

  Thereafter, the split core portion 14, the first pulley 104, and the second pulley 106 are arranged on a long plate-like pallet 200 shown in FIG. In this case, the split core portion 14 is arranged on the pallet 200 in a state of being clamped by the clamp members 202 and 204.

  The split core part 14 is conveyed by the pallet 200 to a predetermined position for manufacturing the stator core 16 (a predetermined position in a station for annularly arranging the split core part 14).

  When the split core portion 14 is arranged at a predetermined position of the station, the starting end portion of the coil wire 18a wound (wound) by the first pulley 104 is the conductor end holding grooves 58a, 58b, the conductor end It is drawn and accommodated in the part holding grooves 60a and 60b or the conductor end holding grooves 62a and 62b. Further, the terminal end portion of the coil wire 18a wound (wound) by the second pulley 106 is drawn and stored in the conductor end portion holding grooves 56a and 56b.

  As described above, according to the winding method and the winding device 100 according to the present embodiment, the leading end of the end of the coil wire 18a (the winding start portion and the terminal end of the start end) is formed in the conductor end holding grooves 190 and 192. The first pulley 104 and the second pulley 106 are moved in a state where the winding end portion of the part is inserted to loosen part of the coil wire 18a, and the first pulley 104 and the second pulley 106 are rotated in this state. Thus, the end of the conductor wire 18a is applied to the tip of the end of the coil wire 18a with the force generated at the end of the coil wire 18a while the pushing force to be inserted into the back of the conductor end holding grooves 190, 192 is applied. The ends of the coil wire 18a can be bent in the vicinity of the insertion ports 212 and 222 of the part holding grooves 190 and 192. As a result, even if the first pulley 104 and the second pulley 106 are rotated, the end of the coil wire 18a is not removed from the end of the coil wire 18a through the conductor end holding grooves 190, 192. It can be wound around the first pulley 104 and the second pulley 106. Therefore, according to the present embodiment, the end of the coil wire 18a is fixed to the first pulley 104 and the second pulley 106 with a simple device configuration, and the end of the coil wire 18a is wound up. it can.

  The conductor end holding grooves 190 and 192 are provided so as to be inclined with respect to the radial direction from the outer peripheral surfaces of the first pulley 104 and the second pulley 106 toward the center. In the third step, the conductor end holding grooves are provided. In order to rotate the first pulley 104 and the second pulley 106 in the direction opposite to the insertion direction (inclination direction) of the grooves 190 and 192, the coil strands near the insertion ports 212 and 222 of the conductor end holding grooves 190 and 192 are rotated. The end of 18a can be easily bent.

  Further, in the vicinity of the insertion openings 212 and 222 of the conductor end holding grooves 190 and 192, there are provided conductor lead-in portions 214 and 224 that expand from the insertion openings 212 and 222 in the outer diameter direction. The tip of the end of the coil wire 18a can be easily inserted into the end holding grooves 190 and 192.

  Furthermore, relief portions 216 and 226 that are recessed toward the centers of the first pulley 104 and the second pulley 106 along the winding direction of the coil wire 18a are provided in the vicinity of the insertion ports 212 and 222. When the coil strands 18a are wound around the first pulley 104 and the second pulley 106 due to the bulging of the end portions of the coil strands 18a bent in the vicinity of 212 and 222, the coils from the first pulley 104 and the second pulley 106 are coiled. It can prevent that the edge part of the strand 18a protrudes.

  Moreover, in the winding method and the winding device 100 according to the present embodiment, the following effects can be obtained.

  The first pulley 104 is formed after the coil wire 18a is wound around the winding portion 38 of the split core portion 14 to form the coil 18 by winding the start end portion and the terminal end portion of the coil wire 18a around the temporary winding pulley 102. Since the winding of the starting end of the coil wire 18a by the winding and the winding of the terminal end of the coil strand 18a by the second pulley 106 are simultaneously performed, the winding of the starting end and the terminal end of the coil strand 18a is short. Can be done in time.

  In this case, integral rotation (rotation) of the split core portion 14 and the temporary winding pulley 102 by the rotation support mechanism 108, revolution and rotation of the first pulley 104 by the first pulley rotation mechanism 110, and rotation of the second pulley. By causing the second pulley 106 to rotate by the mechanism 112, the split core portion 14, the temporary pulley 102, the first pulley 104, and the second pulley 106 rotate and / or rotate in cooperation. Therefore, the winding of the starting end portion of the coil wire 18a by the first pulley 104 and the winding of the end portion of the coil wire 18a by the second pulley 106 can be performed simultaneously, and the temporary winding pulley 102 can be performed. It is possible to wind up the start end portion and the end end portion of the coil wire 18a wound around at a high speed.

  In addition, since the starting end of the coil wire 18a is spirally wound around the first groove 132 formed on the outer peripheral surface of the temporary winding pulley 102 so that the starting end of the coil strand 18a does not overlap, the first When winding the starting end portion of the coil wire 18 a around the pulley 104, it is possible to avoid the winding of the starting end portion of the coil wire 18 a from the temporary winding pulley 102.

  Further, the second groove 134 formed on the outer peripheral surface of the temporary winding pulley 102 so as not to overlap the starting end portion of the coil wire 18a and to be wound in the same direction as the starting end portion of the coil wire 18a. The terminal portion of the coil wire 18a is wound around. Therefore, in the temporary winding pulley 102, if the terminal end of the coil wire 18a is wound in the same direction as the starting end of the coil wire 18a, the temporary pulley 102 can be rotated only in one direction by the first pulley 104. The winding of the starting end portion of the coil wire 18a and the winding of the end portion of the coil strand 18a by the second pulley 106 can be performed simultaneously. In addition, by winding the terminal end of the coil wire 18a in an overlapping manner, a space for spirally winding the start end of the coil wire 18a can be secured on the outer peripheral surface of the temporary winding pulley 102. The second pulley 106 is wound up while unwinding the terminal end of the coil wire 18a wound around the second groove 134.

  Furthermore, since the coil wire 18 a is wound around the winding portion 38 of the split core portion 14, the winding of the start end of the coil strand 18 a by the first pulley 104 and the coil strand 18 a by the second pulley 106 are wound. When the winding of the end portion is completed, the divided core portion 14 can be arranged in an annular shape, and the manufacturing efficiency of the stator core 16 can be improved.

  The present invention is not limited to the above-described embodiment, and it is naturally possible to adopt various configurations without departing from the gist of the present invention.

DESCRIPTION OF SYMBOLS 10 ... Stator 14 ... Divided core part 16 ... Stator core 18 ... Coil 18a ... Coil strand 26 ... Insulator 38 ... Winding part 40 ... Leading part 54 ... Termination fixing part 80 ... Starting end fixing part 100 ... Winding device 102 ... Temporary winding Pulley 104 ... first pulley 106 ... second pulley 108 ... rotation support mechanism 110 ... first pulley rotation mechanism 112 ... second pulley rotation mechanism 118 ... mounting jig 132 ... first groove 134 ... second groove 136 ... first 1 guiding groove 138... 2nd guiding grooves 152, 180... 190, 192 .. conductor end holding grooves 212, 222... Insertion port 214, 224 .. conductor guiding part 216, 226.

Claims (6)

A winding method for winding a coil conductor around a pulley,
A first step of inserting an end of the coil conductor into a conductor end holding groove provided inward from the outer peripheral side of the pulley;
A second step of loosening a part of the coil conductor extending from the conductor end holding groove by moving the pulley in a state where the end of the coil conductor is inserted into the conductor end holding groove; ,
A third step of winding the coil conductor around the pulley by rotating the pulley in a state where a part of the coil conductor is loosened;
A method of winding a coil conductor. In the winding method of the coil conducting wire according to claim 1,
The conducting wire end holding groove is provided to be inclined with respect to a radial direction from the outer periphery of the pulley toward the center of the pulley,
In the third step, the pulley is rotated in a direction opposite to the inclination direction of the conductor end holding groove. A method of winding a coil conductor. A winding device for winding a coil conductor around a pulley,
A pulley support mechanism for supporting the pulley rotatably and movablely;
In the pulley, a conductor end holding groove into which an end of the coil conductor can be inserted is provided from the outer peripheral side of the pulley toward the inside,
The pulley support mechanism moves a part of the coil conductor extending from the conductor end holding groove by moving the pulley in a state where the end of the coil conductor is inserted into the conductor end holding groove. A coil conductor winding device, wherein the coil conductor is wound around the pulley by rotating the pulley in a state in which the coil conductor is loosened. In the coil conductor winding device according to claim 3,
A coil conductor winding device, wherein a conductor lead-in part that is expanded from the insertion port toward an outer diameter direction is provided in the vicinity of the insertion port of the conductor end holding groove in the pulley. In the coil conductor winding device according to claim 3 or 4,
The conducting wire end holding groove is provided to be inclined with respect to a radial direction from the outer periphery of the pulley toward the center of the pulley,
The said pulley support mechanism rotates the said pulley in the direction opposite to the inclination direction of the said conductor end holding groove. The coil conductor winding apparatus characterized by the above-mentioned. In the winding apparatus of the coil conducting wire according to any one of claims 3 to 5,
In the vicinity of the insertion opening of the conducting wire end holding groove in the pulley, a relief portion that is recessed toward the center of the pulley is provided along the winding direction of the coil conducting wire. Winding device.

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