JP4461833B2 - Coil forming device - Google Patents

Description

  The present invention relates to a coil forming apparatus used for a motor (electric motor) or the like.

For example, when manufacturing a motor having a stator in which a plurality of single-pole coils are inserted into slots of the stator core, a continuous-pole coil in which a plurality of single-pole coils are connected is formed.
In the conventional coil forming method, a single pole coil is formed by winding an electric wire around the winding frame using a winder that leads out an electric wire (wire) while rotating around a fixed winding frame. For example, in patent document 1, the outer diameter of the winding frame which winds an electric wire is changeable, the flyer as the said winder is rotated around this winding frame, and the single pole coil which wound is used. The coil is successively wound onto a blade to form a continuous coil used for the motor.

JP 2000-236331 A

  However, in the conventional coil forming method, since the electric wire is supplied while rotating the winder or flyer, the electric wire is wound around the winding frame while being twisted as the winder rotates. When the single-pole coil is inserted into the stator core slot, if the electric wire in the single-pole coil is twisted, the electric wire is not easily moved in the slot. Space may occur. Therefore, it is difficult to improve the coil space factor occupied by the single-pole coil in the slot.

  The present invention has been made in view of such conventional problems, and an object of the present invention is to provide a coil forming apparatus capable of stably forming a single-pole coil with little torsion on any coil winding frame. To do.

The present invention is an apparatus for forming a continuous coil comprising a plurality of single-pole coils formed by winding an electric wire in a loop shape,
A winding jig comprising a plurality of coil winding frames for winding the monopolar coil and a crossover adjusting unit for adjusting the length of the crossover connecting the monopolar coils;
The entire winding jig is rotated around a winding axis in one of the plurality of coil winding frames that winds the electric wire or an axis substantially parallel to the winding axis. A rotating device,
Each of the coil winding frames is arranged so that the winding axes thereof are substantially parallel to each other, and a cross-sectional shape in a direction orthogonal to the winding axis has a substantially rectangular shape,
The winding surface that winds the wire in the crossover adjusting portion is formed with a radius of curvature that is 1/2 or more of the width of the short side of the substantially rectangular coil winding frame ,
Each of the coil winding frames is in a coil forming apparatus characterized in that the winding axis is arranged on a virtual arc .

  The coil forming device rotates the entire winding jig in which the plurality of coil winding frames are arranged by the rotating device, winds the wire, and forms the monopolar coil. . Moreover, the said coil forming apparatus forms the said connecting wire between the said single pole coils in the state which adjusted the length by the said connecting wire adjustment part.

That is, in this coil forming device, when the wire is wound around the coil winding frame to form the monopolar coil, the coil winding frame intended to form the single pole coil by the rotating device. The entire winding jig is rotated around a winding axis in FIG. 1 or an axis substantially parallel to the winding axis. Therefore, unlike the conventional case, the electric wire is not wound while rotating the winder or the like from the outer periphery of the fixed winding frame, and the supply direction of the electric wire to each coil winding frame does not change so much. Therefore, it is possible to form each monopolar coil in each coil winding frame with almost no twisting of the electric wire, and it is possible to form a crossover in the crossover adjustment section.
Therefore, according to the coil forming apparatus, the single-pole coil and the jumper that hardly generate the twist can be stably formed for any coil winding frame and the jumper adjusting unit. Thus, a continuous coil with almost no generation can be formed stably.

  Further, the winding surface of the connecting wire adjusting portion is formed with a radius of curvature that is 1/2 or more of the width of the short side of the substantially rectangular coil winding frame. Therefore, the connecting wire wound around the winding surface in the connecting wire adjusting portion is not bent and deformed to be smaller than ½ of the short side width of the coil winding frame. Therefore, the connecting wire adjusting section can hold the connecting wire wound around the connecting wire adjusting portion in a good state with little bending deformation. Therefore, according to the above-described coil forming apparatus, it is possible to form a continuous-pole coil in which a plurality of single-pole coils are connected by a crossover wire with little bending deformation.

A preferred embodiment of the present invention described above will be described.
In the present invention, the continuous coil can be used by being inserted into a slot of a stator core or a rotor core in a motor. Moreover, the said motor can be used for various uses, for example, can be used as a motor generator in an electric vehicle or a hybrid car.

Further, the rotating device has a turning arm that can turn around a turning center axis, and the winding jig is disposed so as to be rotatable with respect to the turning arm. The plurality of coil winding frames are disposed on the index holder in a state in which the winding axis is arranged substantially parallel to the turning center axis, and the coil formation is performed. It is preferable that the apparatus is configured such that the coil holder that winds the electric wire can be sequentially moved closer to the turning center axis by rotating the index holder.

  In this case, by the movement of the index holder, the coil winding frames and the connecting wire adjusting section can be made to approach the turning center axis sequentially from those for winding or winding the electric wire. Therefore, the electric wire can be wound or wound on each of the coil winding frames and the connecting wire adjusting portion in a state where they are not very decentered from the turning center axis. For this reason, it is possible to easily form a single-pole coil and a jumper wire that hardly cause the twisting of the electric wire.

  The index holder is rotatably disposed on the swing arm about a rotation center axis formed at a position offset substantially parallel to the rotation center axis. A winding frame is arranged on the index holder in an arc shape at substantially the same distance from the rotation center axis, and a coil winding frame for winding the wire by rotating the index holder is provided. It is preferable to be configured to be able to approach the turning center axis sequentially (Claim 3).

In this case, the coil coils arranged in the arc shape can form a continuous coil in a circular arc shape. Therefore, it becomes easy to insert and arrange the continuous coil in a slot in the annular stator core or the circular rotor core.
Further, the index holder can move the coil winding frames closer to the turning center axis by simply rotating and moving around the turning center axis. For this reason, the index coil having a simple structure can easily form a continuous coil that hardly generates the twist.
In addition, each said coil winding frame arrange | positioned in the said circular arc shape means having arrange | positioned each coil winding frame so that it may rank on a virtual arc.

Further, each of the coil winding frames is disposed so as to be able to advance and retreat in the direction of the turning center axis with respect to the index holder, and the coil winding frames for winding the wires are connected to the remaining coil winding frames. It is preferable that the head is advanced in the forward direction away from the swivel arm and protrudes from the remaining coil winding frame.
In this case, the electric wire can be easily supplied to the projecting coil winding frame from a direction orthogonal to the winding axis. Therefore, the supply of the electric wire is easy and the winding of the electric wire around the coil winding frame is easy, and a continuous coil with almost no twisting can be formed more easily.

Each of the coil winding frames has an inner winding frame portion attached to the index holder and an outer winding frame portion disposed opposite to the inner winding frame portion. Between the winding position when winding the electric wire and the separation position when separating the monopolar coil after the winding from the coil winding frame, between the inner winding frame portion It is preferable that it can be rotated so as to change the distance (Claim 5).

In this case, each coil winding frame, when winding the electric wire, has the outer winding frame portion as the winding position, and is between the outer winding frame portion and the inner winding frame portion. A single-pole coil having a winding diameter determined by the distance can be formed.
Further, when each coil winding frame is detached from the wound single pole coil, the distance between the outer winding frame portion and the inner winding frame portion with the outer winding frame portion set as the separation position. Can be reduced and each single pole coil can be detached.

In addition, it is preferable that the outer reel portion has a diameter that gradually increases in a forward direction away from the swivel arm.
In this case, when the outer winding frame portion is set to the winding position, a state in which the outer diameter of the coil winding frame is gradually increased toward the forward direction and the electric wire is directed toward the forward direction. A single-pole coil having a large winding diameter can be formed. For this reason, when the continuous coil composed of this single-pole coil is inserted and arranged in a slot in the stator core or rotor core, the continuous coil is positioned on the opening side of the slot where the insertion arrangement is made and the side with the larger winding diameter is positioned. , Can be inserted and arranged well.
Further, when the outer winding frame portion is set to the separation position, a state in which the outer diameter of the coil winding frame decreases in the forward direction can be formed so that the single-pole coils can be easily detached. it can.

The coil winding frames are arranged such that the winding axis is aligned on a virtual arc .
As a result , in the plurality of coil winding frames, a monopole coil can be formed with a monopole coil arranged on a virtual arc, and it is easy to dispose the monopole coil on the stator core or the rotor core.

Further, the pass line adjusting unit that is disposed between the coil body adjacent to each other that is wound by passing the wire of the plurality of coil body is preferably (claim 7).
In this case, the distance between the coil winding frame and the crossover adjusting unit can be reduced, and the crossover can be formed as short as possible. Therefore, it is possible to form a connecting wire having almost no twisting to an optimum length, and a connecting coil formed by connecting a plurality of single-pole coils through the connecting wire can be assembled to the stator core or the rotor core well. . Moreover, since the distance between a coil winding frame and a crossing adjustment part can be shortened, the winding jig | tool which arranged these can also be made compact.

Further, the winding surface that winds the electric wire in the crossover adjusting portion is inside or near the virtual circle that passes through the outer peripheral end of each winding surface that winds the electric wire of the plurality of coil winding frames. More preferably, it is arranged in
In this case, the said outer peripheral edge part means the part most distant from the arrangement | positioning center of the several coil winding frame distribute | arranged on the said virtual circular arc in the winding surface of each said coil winding frame. In addition, the state where the winding surface in the crossover adjustment unit is arranged in the vicinity of the virtual circle means that a part of each crossover adjustment unit is located on the virtual circle, or in each crossover adjustment unit A state in which a part of each winding surface is located on a virtual circle.

Moreover, it is preferable that the said crossing adjustment part is arrange | positioned at the said coil winding frame, and is comprised so that it may advance / retreat with this coil winding frame (Claim 8 ).
In this case, it is not necessary to advance or retract the crossover adjustment section alone, and it is not necessary to provide a special mechanism for advancing and retreating the crossover adjustment section. Therefore, it is possible to form a coil forming apparatus that can easily supply the electric wire and easily wind and wind the electric wire around the coil winding frame and the crossover adjusting portion by a winding jig having a simple structure. it can.
Further, in this case, it is easy to provide the connecting wire adjusting portion near the coil winding frame, and when the wire is wound around the coil winding frame, it is transferred to a position that does not hinder the winding. The line adjustment unit can be easily provided.

Further, the pass line adjusting unit may be configured to advance and retreat in synchronization with one of the coil winding frame with itself is retractable (claim 9).
Also in this case, the coil winding frame and the connecting wire adjusting unit for winding and winding the wire can be easily supplied and the coil winding frame and the connecting wire adjusting unit by advancing and retracting at almost the same timing. A coil forming apparatus that can easily wind and wind an electric wire can be formed.

  In addition, each said coil winding frame and the said cross wire adjustment part can be advanced / retreated in the formation direction of the winding axis | shaft in each coil winding frame. In this case, each coil winding frame and the connecting wire adjusting portion can be advanced and retracted in a direction slightly inclined in the direction in which the winding shaft is formed in each coil winding frame.

Each of the coil winding frames has a fixed-side winding frame portion fixed to the winding jig, and a movable-side winding frame portion disposed opposite to the fixed-side winding frame portion. The winding frame portion has a winding position when winding the wire around the rotation fulcrum portion formed in the vicinity of the retreat-side end portion in the advancing and retreating direction of the fixed-side winding frame portion, and the winding It is preferable that the single-pole coil after performing the rotation can be rotated so as to change the distance between the fixed-side winding frame portion and the separation position when the single-pole coil is detached from the coil winding frame ( Claim 10 ).

In this case, when each of the coil winding frames performs the winding of the electric wire, the movable side winding frame portion and the fixed side winding frame portion are arranged with the movable side winding frame portion in the winding position. A single-pole coil having a winding diameter determined by the distance between the two can be formed.
Further, when each coil winding frame is detached from the wound single pole coil, the movable side winding frame portion and the fixed side winding frame are rotated by rotating the movable side winding frame portion to the separation position. The distance between the two parts can be reduced, and the single pole coil can be detached.

In addition, the crossover adjusting portion is provided in the vicinity of the retreating side end portion in the advancing / retreating direction of the movable winding frame portion of any of the coil winding frames, and in the fixed winding frame portion of any of the coil winding frames. It is preferable to be disposed in the vicinity of the forward end portion in the forward / backward direction (claim 11 ).
In this case, at the same time that the movable-side reel unit is rotated to the disengagement position, the connecting wire adjusting unit disposed in the vicinity of the retreat-side end of the movable-side reel unit can also be rotated. it can. Therefore, for example, from the center of arrangement of the plurality of coil winding frames arranged on the virtual arc, the connecting wire adjusting unit arranged in the vicinity of the retreating side end portion in the advancing / retreating direction of the movable winding frame portion of the coil winding frame Even if the distance to the winding surface is the same as the distance to the outer peripheral end portion of the coil winding frame, the connecting wire that has been wound can be easily detached from the connecting wire adjusting portion.
In addition, the said outer peripheral edge part means the part most distant from the arrangement | positioning center of the several coil winding frame distribute | arranged on the said virtual circular arc in the winding surface of each said coil winding frame.

In addition, the connecting wire adjusting portion disposed in the vicinity of the retracted side end portion of the movable winding frame portion of the coil winding frame first winds the electric wire on the winding surface of the coil winding frame. The connecting wire adjusting portion disposed in the vicinity of the advancing side end portion of the coil winding frame is opposed to the initial winding surface portion to be performed, and the winding surface of the coil winding frame is the winding surface of the coil winding frame. the last faces the last round wound surface that performs winding of the wire in the preferred (claim 12).

  In this case, the wire that performs the winding is disposed in the vicinity of the retracted side end portion of the movable winding frame portion of the coil winding frame that is to be wound from the coil winding frame that was previously wound. After passing to the crossover adjustment unit, the winding can be performed on the initial winding surface portion of the winding surface of the coil winding frame to be wound. Further, on the winding surface of the coil winding frame, after the wire is wound up to the final winding portion, the forward side end in the fixed winding portion of the coil winding to be wound next time Can be passed to a crossover adjusting unit arranged in the vicinity of the unit. For this reason, the arrangement of the crossover adjustment unit does not hinder the crossover adjustment unit from winding the wire around the coil winding frame, and the smoothness between the coil winding frame and the crossing adjustment unit. You can pass the electric wire to.

In addition, the winding jig includes a coil winding frame in which the crossing adjustment unit is not disposed, and the crossing adjustment unit in the vicinity of the retreat side end in the movable side winding unit and the fixed side, respectively. It is preferable that the coil winding frames disposed in the vicinity of the forward end portion of the winding frame portion are alternately arranged adjacent to each other (claim 13 ).
In this case, each of the plurality of coil winding frames is separately formed into a coil winding frame in which the crossover adjustment unit is not provided and a coil winding frame in which the crossover adjustment unit is provided. It is possible to facilitate the forward / backward movement when winding and winding the electric wire on the coil winding frame and the connecting wire adjusting portion. Further, in this case, the position of the crossover adjusting portion with respect to the coil winding frame can be easily determined so that the length of the crossover is optimized.

Moreover, it is preferable that the front-end | tip part of the said crossover adjustment part is formed with the collar part which expanded the said winding surface of this crossover adjustment part (Claim 14 ).
In this case, it is possible to easily prevent the electric wire wound around the winding surface of the crossover adjusting portion from being unexpectedly disconnected by the flange portion.

Moreover, it is preferable that the said connecting wire adjustment part distribute | arranged to the vicinity of the advancing side edge part of the advancing / retreating direction in the said fixed winding frame part of the said coil winding frame is detachable with respect to the said coil winding frame. Item 15 ).
In this case, when the single-pole coil after the winding is detached from the coil winding frame, the crossover adjusting unit can be removed from the coil winding frame. Therefore, the crossover adjustment unit does not become an obstacle when the single-pole coil is detached, and the single-pole coil can be easily detached from the coil winding frame.

In addition, the crossover adjusting portion disposed in the vicinity of the forward end portion in the advancing / retreating direction of the fixed winding portion of the coil winding frame moves the movable winding portion of the coil winding frame to the separation position. When it is rotated, it is preferably configured to be housed in the coil winding frame in conjunction with the rotation (claim 16 ).
In this case, when the single-pole coil after the winding is detached from the coil winding frame, the movable-side winding frame portion is rotated to the separation position and at the same time the fixed-side winding frame is used. The connecting wire adjusting portion disposed in the vicinity of the forward end portion of the portion can be moved and stored in the coil winding frame. Therefore, the crossover adjustment unit does not become an obstacle when the single-pole coil is detached, and the single-pole coil can be easily detached from the coil winding frame.
The state in which the wire winding frame portion is housed in the coil winding frame means that the wire winding frame portion is located inside the outer shape of the coil winding frame formed by the fixed-side winding frame portion and the movable-side winding frame portion. It means the state of being stored in.

Further, the connecting wire adjusting portion disposed in the vicinity of the advancing side end portion in the advancing / retreating direction of the fixed winding portion of the coil winding frame is rotatable with respect to the fixed winding portion, A rotation fulcrum portion serving as a fulcrum for the rotation; and an engagement portion that engages with an engaged portion formed in the movable side reel portion, and the movable side reel portion is detached. When rotating to a position, the engaging portion engages with the engaged portion, and rotates about the rotation fulcrum portion so as to be housed in the coil winding frame. It is preferable to do.
In this case, this can be easily accommodated in the coil winding frame by a simple device of the crossover adjusting portion.

In the following Example 1, it demonstrates about the coil formation apparatus for forming the continuous coil which connects the several single pole coil with the same winding direction using FIGS. The coil forming process for forming the continuous coil will be described.
Moreover, in the following Example 2, it demonstrates about the coil formation insertion apparatus which has a winding jig | tool and an inserter jig | tool using FIGS. 12-20, and the continuous electrode hold | maintained at the winding jig | tool. The coil transfer process for temporarily transferring the coil to the inserter jig and the coil insertion process for inserting and arranging the continuous coil from the inserter jig in each slot of the stator core will be described.

  Further, in Example 3 below, another coil forming apparatus for forming a continuous coil composed of a plurality of single-pole coils whose winding directions are opposite to each other using FIGS. 21 to 39. A description will be given of a method of forming a continuous coil from an electric wire.

In the first and third embodiments, the coil forming apparatus and the coil forming method will be described, and in the second embodiment, the coil forming / inserting apparatus and the coil forming / inserting method will be described.
Further, the winding jig used in the second embodiment is the same as the winding jig used in the first embodiment, and the second embodiment may be described with reference to any of FIGS. .

Example 1
As shown in FIGS. 1 and 2, the coil forming apparatus 1 of the present example forms a continuous coil 9 that is a coil for a motor including a plurality of single-pole coils 90 formed by winding an electric wire 99 in a loop shape. Is. The coil forming apparatus 1 includes a gantry (not shown), a turning arm 21 disposed on the gantry so as to be turnable around a turning center axis C2 connected to a turning device (not shown), and a winding treatment. The tool 2 is provided. The winding jig 2 includes an index holder 22 disposed so as to be movable with respect to the swivel arm 21 and a plurality of coil winding frames 3 disposed on the outer peripheral surface of the index holder 22. .

Further, the winding axes C1 for winding the electric wires 99 in the coil winding frames 3 are substantially parallel to each other and are also substantially parallel to the turning center axis C2. The coil forming apparatus 1 is configured to move the index holder 22 so that the coil winding frame 3 that winds the electric wire 99 can sequentially approach the turning center axis C2.
This will be described in detail below.

As shown in FIGS. 1 and 2, the index holder 22 is pivotally moved to the pivot arm 21 around a pivot center axis C3 formed at a position offset substantially parallel to the pivot center axis C2. It is arranged to be possible. The coil winding frames 3 are arranged on the index holder 22 so as to be arranged in an arc shape at substantially the same distance from the rotation center axis C3.
Further, a winding frame distance L1 from the rotation center axis C3 to the winding axis C1 of each coil winding frame 3 is an offset from the rotation center axis C2 of the swing arm 21 to the rotation center axis C3 of the index holder 22. It is substantially the same as the distance L2.

Then, by rotating the index holder 22 with respect to the turning arm 21 by a predetermined angle, the winding axis C1 of the coil winding frame 3 around which the wire 99 is wound is sequentially aligned with the turning center axis C2. In this state, the electric wire 99 can be wound.
In addition, the coil winding frames 3 arranged so as to be arranged in an arc shape can form a continuous coil 9 connected in an arc shape (see FIG. 11).

  Further, as shown in FIG. 3, the coil winding frames 3 are disposed so as to be able to advance and retract in the direction of the turning center axis C <b> 2 with respect to the index holder 22. And the coil winding frame 3 which winds the said electric wire 99 is made to protrude rather than the remaining coil winding frame 3 by advancing in the advance direction which leaves | separates from the said turning arm 21 with respect to the remaining coil winding frame 3. Can do. Therefore, the electric wire 99 can be easily supplied from the direction orthogonal to the winding axis C <b> 1 to the protruding coil winding frame 3, and the supply of the electric wire 99 is easy and the coil winding frame 3 is supplied to the coil winding frame 3. Winding of the electric wire 99 is also easy.

  In addition, as shown in FIG. 2, the coil winding frames 3 are arranged on the outer peripheral surface of the index holder 22 so as to be arranged in a circumferential shape (radially). In this example, the coil winding frames 3 are arranged on the outer peripheral surface of the index holder 22 so as to be arranged at substantially equal intervals. In this example, four coil winding frames 3 are provided in order to form a continuous coil 9 formed by connecting four single-pole coils 90.

  Further, as shown in FIGS. 3 and 4, each coil winding frame 3 has an inner winding frame portion 31 attached to the index holder 22 and an outer winding frame portion 32 disposed to face the inner winding frame portion 31. is doing. As shown in FIG. 3, the outer winding frame 32 includes a winding position 301 when winding the electric wire 99 and a single pole coil 90 after the winding as shown in FIG. 4. It can be moved so as to change the distance between the inner reel 31 and the separation position 302 when the reel 3 is separated from the reel 3. Further, the outer winding frame portion 32 is gradually increased in diameter in the forward direction away from the revolving arm 21.

  As shown in FIG. 3, when the outer winding frame portion 32 is set to the winding position 301, a state can be formed in which the outer diameter of the coil winding frame 3 is increased stepwise in the forward direction. Then, a single-pole coil 90 in which the winding diameter of the electric wire 99 increases in the forward direction can be formed, and the winding of the normal dimension determined by the distance between the outer winding frame portion 32 and the inner winding frame portion 31 is formed. A single-pole coil 90 having a diameter can be formed.

  Further, when the continuous coil 9 composed of each single-pole coil 90 is inserted into the slot 810 of the stator core 81, the continuous coil 9 has a large winding diameter on the opening side of the slot 810 to be inserted. The side can be positioned and inserted. The coil end portions formed by projecting the single-pole coils 90 from both end portions in the axial direction of the stator core 81 are made smaller by moving and deforming from the portion located on the opening side toward the outside of the stator core 81. can do. That is, by forming each single-pole coil 90 whose winding diameter increases from one side to the other side, the length of each single-pole coil 90 is brought close to the necessary minimum length, and the coil end portion is reduced. can do.

  Further, as shown in FIG. 4, when the outer winding frame portion 32 is set to the disengagement position 302, a state can be formed in which the outer diameter of the coil winding frame 3 decreases in the forward direction. Then, the single pole coil 90 can be easily detached by reducing the distance between the outer reel portion 32 and the inner reel portion 31.

As shown in FIGS. 3 and 4, in the present example, each coil winding frame 3 is provided with a handle 35 and manually advanced and retracted, and the advancing / retreating position is fixed by the positioning pin 34. In addition to this, each coil winding frame 3 can be advanced and retracted using a cylinder or a motor.
Moreover, in this example, in each coil winding frame 3, the cam 33 is arrange | positioned so that rotation to each inner winding frame part 31 is possible, and as shown in FIG. The detachment position 302 is formed when the cam 33 is tilted toward each inner reel portion 31 as shown in FIG. In addition to this, the movement of the outer winding frame portion 32 between the winding position 301 and the separation position 302 can also be performed using a cylinder or a motor.

  As shown in FIGS. 1 and 2, in the index holder 22, a connecting wire adjusting unit for winding a connecting wire 995 connecting the single-pole coils 90 between the coil winding frames 3. A connecting wire reel 41 is provided. In this example, three connecting wire winding frames 41 are disposed between the four coil winding frames 3. And by winding the electric wire 99 around the connecting wire winding frame 41, the connecting wire 995 having a specified length can be formed between the monopolar coils 90 formed on each coil winding frame 3 ( (See FIG. 11).

As shown in FIGS. 1 and 2, in this example, the first coil winding frame 3 a that winds the electric wire 99 first and the fourth coil winding frame 3 d that winds the last winding are used. In between, a lead winding frame 42 is provided for winding the electric wire 99 and securing a lead wire 996 having a predetermined length in advance before winding the first coil winding frame 3a. Yes. The lead wire 996 refers to the electric wire 99 connected to the winding end portion of the first single-pole coil 90a formed in the first coil winding frame 3a (see FIG. 11).
In this example, the cross-sectional shape of the lead winding frame 42 is substantially circular, and the lead wire 996 having a predetermined length can be stably attached to the first single-pole coil 90a without causing the electric wire 99 to be bent. It can be secured at the winding end.

  Similarly to the coil winding frame 3, the connecting wire winding frame 41 and the lead winding frame 42 can move back and forth in the direction of the turning center axis C <b> 2 with respect to the index holder 22, and the remaining coil winding frames 3. Further, it is possible to move forward with respect to the connecting wire winding frame 41 in the forward direction away from the revolving arm 21 and to protrude from the remaining coil winding frame 3 and the connecting wire winding frame 41.

As shown in FIGS. 1 and 2, the turning arm 21 can turn in both forward and reverse rotation directions around the turning central axis C2. In this example, a continuous coil 9 is formed in which four single-pole coils 90 wound in the same winding direction are connected. Therefore, the rotation direction of the turning arm 21 when wound around the coil winding frame 3 is opposite to the rotation direction of the turning arm 21 when wound around the connecting wire winding frame 41. Are alternately rotated in both forward and reverse rotation directions to form the above-described coil 9.
Hereinafter, the turning direction of the turning arm 21 when winding the coil winding frame 3 is referred to as a normal rotation direction, and the turning direction of the turning arm 21 when winding the connecting wire winding frame 41 and the lead winding frame 42. Is called the reverse rotation direction.

  Although not shown, the gantry is provided with a turning device for turning the turning arm 21 about the turning center axis C2. The turning center axis C2 is connected to the turning device. In this example, the swivel device is configured to be manually swiveled by providing a handle on the swivel arm 21. In addition to this, as the swivel device, various motors or index cylinders that operate using electric power, hydraulic pressure, air, or the like can be used.

Below, the coil formation process which forms the continuous-pole coil 9 using the said coil formation apparatus 1 is demonstrated.
In this coil forming process, the above-described coil forming apparatus 1 is used to sequentially perform the following index process, projecting process and winding process on each coil winding frame 3 to form the single pole coil 90. A continuous coil 9 in which the coil 90 is connected is formed.

  As shown in FIG. 1, in the coil forming apparatus 1, in the original position of the index holder 22, the lead winding frame 42 is in a position closest to the turning center axis C <b> 2 in the turning arm 21. In this original position, the winding axis C1 of the lead winding frame 42 is substantially aligned with the turning center axis C2 of the turning arm 21.

Then, as a pretreatment step, the lead winding frame 42 is advanced and protruded from the coil winding frames 3 and the connecting wire winding frames 41. Then, the electric wire 99 is supplied to the lead winding frame 42 and the turning arm 21 is turned in the reverse rotation direction to wind the electric wire 99 around the lead winding frame 42 to form a lead wire 996 having a predetermined length.
The electric wire 99 is supplied from the transverse direction of the coil forming apparatus 1, that is, from the direction orthogonal to the winding surface for winding the electric wire 99 of each coil winding frame 3, each connecting wire winding frame 41 and lead winding frame 42. Do.

Next, as shown in FIG. 5, as the indexing step, the index holder 22 is rotated by a predetermined angle so that the winding axis C1 of the first coil winding frame 3a is substantially aligned with the turning center axis C2.
Further, as the projecting step, the first coil winding frame 3a is advanced to project the first coil winding frame 3a and the lead winding frame 42 is retracted.

  Then, as shown in FIG. 6, as the winding step, the electric wire 99 is supplied to the first coil winding frame 3a and the turning arm 21 is turned in the normal rotation direction, and the electric wire 99 is supplied to the first coil winding frame 3a. Is wound a plurality of times to form the first single-pole coil 90a. In addition, the outer winding frame portion 32 of the first coil winding frame 3a is located at the winding position 301, and the outer diameter of the first coil winding frame 3a is gradually increased in the forward direction. ing. And the monopolar coil 90 with which the winding diameter of the electric wire 99 becomes large toward the advancing direction can be formed.

Next, as shown in FIG. 7, the indexing process is performed again, the index holder 22 is rotated by a predetermined angle, and the winding axis C1 of the first feeder reel 41a is substantially aligned with the turning center axis C2. Moreover, as a protrusion process, the 1st connecting wire winding frame 41a is advanced, this 1st connecting wire winding frame 41a is protruded, and the 1st coil winding frame 3a is retracted.
Next, as the connecting wire forming step, the electric wire 99 is supplied to the first connecting wire winding frame 41a and the turning arm 21 is turned in the reverse rotation direction so that the electric wire 99 is wound around the first connecting wire winding frame 41a. A crossover 995 is formed.

Next, as shown in FIG. 8, the indexing process is performed again, the index holder 22 is rotated by a predetermined angle, and the winding axis C1 of the second coil winding frame 3b is substantially aligned with the turning center axis C2. Moreover, as a protrusion process, the 2nd coil winding frame 3b is advanced, this 2nd coil winding frame 3b is protruded, and the 1st connecting wire winding frame 41a is retracted.
And as shown in FIG. 9, the said winding process is performed again, the electric wire 99 is supplied to the 2nd coil winding frame 3b, and the turning arm 21 is turned in the normal rotation direction, and the second coil winding frame 3b. A second single-pole coil 90b is formed by winding the electric wire 99 a plurality of times.

  Thereafter, as shown in FIG. 10, similarly to the above, the above-mentioned index process, projecting process and crossing line forming process are performed on the second crossing winding frame 41 b and the third crossing winding frame 41 c, so Then, the third coil winding frame 3c and the fourth coil winding frame 3d are subjected to the indexing step, the projecting step, and the winding step to form the third single pole coil 90c and the fourth single pole coil 90d. .

  And as shown in FIG. 11, the 1st-4th single pole coil 90a-d forms the continuous coil 9 connected with each said crossover wire 995. As shown in FIG. In the figure, the single-pole coils 90a to 90d are formed on the first to fourth coil winding frames 3a to d, and the continuous coil 9 is formed on the entire winding frames 3a to d, 41a to d, 42. It is explanatory drawing which shows a state typically.

The coil forming apparatus 1 turns the wire 99 around the coil winding frame 3 that is closest to the turning center axis C2 by turning the whole of the plurality of coil winding frames 3 by the turning arm 21. The single pole coil 90 is formed by performing the above.
Then, by turning the turning arm 21, the index holder 22 and the plurality of coil winding frames 3 arranged on the turning arm 21 are rotated, and the electric wire 99 is wound. Therefore, unlike the prior art, the electric wire 99 is not wound while rotating a winder or the like from the outer periphery of the fixed winding frame, and each single-pole coil is applied to each coil winding frame 3 with almost no twisting of the electric wire 99. 90 can be formed.

Further, by turning the index holder 22, the winding axis C <b> 1 of the coil winding frame 3 that winds the electric wire 99 can be substantially aligned with the turning center axis C <b> 2 of the turning arm 21 sequentially. For this reason, the coil forming apparatus 1 has a plurality of coil winding frames 3 for forming the continuous coil 9, but the coil winding frame 3 to be wound is not so eccentric from the turning center axis C2. The wire 99 can be wound.
Then, after the monopolar coil 90 is formed on any one of the coil winding frames 3, the index holder 22 is rotated to wind the next coil winding frame 3 adjacent to any one of the coil winding frames 3. The single pole coil 90 can be formed in the same manner as described above with the axis C1 substantially aligned with the pivot center axis C2.

  Therefore, the supply of the electric wire 99 can be performed from a substantially constant direction orthogonal to the winding axis C1 of the coil winding frame 3 for winding, and the winding of the electric wire 99 to each coil winding frame 3 is stably performed. It can be carried out. Therefore, the single-pole coil 90 with little torsion can be stably formed on any of the coil winding frames 3, and the continuous coil 9 with little torsion is stably formed. can do.

(Example 2)
As shown in FIG. 13, the coil forming / inserting device 5 of this example includes a winding jig 2 that forms a continuous coil 9 including a plurality of single-pole coils 90 formed by winding a wire 99 in a loop shape, An inserter jig 6 is provided to receive the above-described coil 9 facing the winding jig 2 and to insert the coil 9 into a plurality of slots 810 formed on the inner peripheral surface of the stator core 81. .

As shown in FIG. 12, the winding jig 2 has a plurality of coil winding frames 3, and the inserter jig 6 receives a plurality of single-pole coils 90 from the coil winding frames 3. The coil receiving portion 62 is provided.
Then, as shown in FIG. 16, the coil forming insertion device 5 is a continuous coil in which each coil receiving portion 62 is opposed to each coil winding frame 3 and each monopolar coil 90 wound around each coil winding frame 3 is connected. 9 is transferred from the winding jig 2 to the inserter jig 6.
This will be described in detail below.

  As shown in FIGS. 1 and 2, the winding jig 2 includes a plurality of coil winding frames 3 for winding the electric wire 99 to form the single-pole coil 90, and a central point of the winding jig 2. It is arranged at substantially the same distance. In the winding jig 2, the winding axes C <b> 1 for winding the electric wires 99 in the coil winding frames 3 are arranged substantially parallel to each other.

  On the other hand, as shown in FIGS. 12 and 13, the inserter jig 6 has an extrusion insertion core 61 for pushing out and inserting the continuous coil 9 toward the slot 810 of the stator core 81. The plurality of coil receiving portions 62 are disposed on the outer peripheral surface of the extrusion insertion core 61 and receive the single-pole coils 90 from the coil winding frames 3, respectively.

  As shown in FIGS. 12 and 14, the coil forming / inserting device 5 moves the coil winding frames when the coil 9 is transferred from the winding jig 2 to the inserter jig 6. The coil receiving portions 62 are opposed to the front end surface 311 in the direction of the winding axis C1, and the coil winding frames 3 and the coil receiving portions 62 are connected to each other. And each of the coil receivers 62 are configured to form a transfer route 60 for transferring the single-pole coils 90.

  Further, as shown in FIGS. 3 and 12, each coil winding frame 3 has a fitting recess 312 for fitting the tip portion 621 of each coil receiving portion 62 in the inserter jig 6 into the tip surface 311 thereof. is doing. In this example, the fitting recess 312 is formed on the front end surface 311 of each inner winding frame portion 31 of each coil winding frame 3.

  Further, as shown in FIG. 14, the insertion recess 312 is formed to a depth that allows the coil receiving portion 62 to be inserted and disposed in the entire ring of the single-pole coil 90 wound around the coil winding frame 3. . That is, the insertion recess 312 is formed deeper from the distal end surface 311 of each coil winding frame 3 than the winding depth from the distal end surface 311 of each coil winding frame 3 to the position where the wire 99 is wound.

As shown in FIGS. 12 and 14, each coil winding frame 3 and each coil receiving portion 62 are connected by inserting the leading end 621 of each coil receiving portion 62 into the fitting recess 312 of each coil winding frame 3. Can be performed. Further, the transfer of the coil 9 from the winding jig 2 to the inserter jig 6 can be performed with this insertion.
Further, when this insertion is performed, the tip portion 621 of each coil receiving portion 62 is inevitably inserted and disposed in the ring of each single-pole coil 90 in each coil winding frame 3.

  Further, as shown in FIGS. 12 and 13, the winding jig 2 can be moved forward and backward to the inner peripheral side of each coil winding frame 3 in order to pay out the continuous coil 9 to the inserter jig 6. It has a dispensing core 23 arranged. The delivery core 23 is advanced to a forward direction (a forward direction away from the swivel arm 21) on the side opposite to the inserter jig 6, thereby delivering each coil receiving portion 62 to each coil receiving portion 62 as shown in FIG. The single pole coil 90 can be pushed out to a predetermined position in the inserter jig 6.

  In this example, as shown in FIG. 18, the predetermined position is a prescribed position when the continuous coil 9 is inserted from the inserter jig 6 into the slot 810 of the stator core 81. Therefore, after transferring the continuous coil 9 to the inserter jig 6, the transferred continuous coil 9 can be inserted into the slot 810 of the stator core 81.

  Further, as shown in FIG. 12, the inserter jig 6 has a plurality of guide portions 63 disposed between the respective coil receiving portions 62 so as to be substantially in the same direction as the direction in which the coil receiving portions 62 are formed. is doing. As shown in FIG. 19, the guide portion 63 faces the teeth 811 positioned between the slots 810 of the stator core 81 and guides the insertion arrangement of the continuous coil 9 into the slots 810. is there.

  As shown in FIG. 12, insertion gaps 64 into which the electric wires 99 in the monopolar coil 90 can be inserted are formed between the guide portions 63 and the coil receiving portions 62 adjacent to both sides thereof. Each single-pole coil 90 is configured not to mix with the electric wire 99 in the adjacent single-pole coil 90 when the electric wire 99 in the single-pole coil 90 is inserted into the insertion gap 64 and inserted in each coil receiving portion 62. Thereby, the electric wire 99 in each single-pole coil 90 can be reliably inserted and disposed in the slot 810 of each stator core 81.

  Further, as shown in FIG. 20, the extrusion insertion core 61 can be advanced and retracted relative to the coil receiving portions 62. And when each coil receiving part 62 and each guide part 63 were made to oppose the inner peripheral side of the stator core 81, the extrusion insertion core 61 moved forward toward the stator core 81, and was hold | maintained at each coil receiving part 62 A single pole coil 90 can be inserted into each slot 810.

In the following, a coil transfer process for temporarily transferring the continuous coil 9 formed by performing the coil forming process shown in the first embodiment to the inserter jig 6, and the continuous coil 9 from the inserter jig 6 to the stator core. A coil forming and inserting method for performing a coil inserting step of inserting and arranging in each of the 81 slots 810 will be described.
Also in this example, the coil forming process is the same as that in the first embodiment.
Next, the coil transfer process for transferring the coil 9 formed by performing the coil forming process from the winding jig 2 to the inserter jig 6 will be described.

As shown in FIG. 12, in this coil transfer process, the coil 9 is inserted from the winding jig 2 into the inserter using a coil forming / inserting device 5 having the winding jig 2 and the inserter jig 6. Transfer to the jig 6.
That is, as shown in FIG. 13, in the coil transfer process, first, the entire winding jig 2 on which the continuous coil 9 is formed is advanced toward the inserter jig 6. At this time, in each coil winding frame 3 in the winding jig 2, each outer winding frame portion 32 is in the winding position 301, and each single pole coil 90 is tensioned. And each single pole coil 90 is maintained so that the state after performing the said winding may not collapse.

And as shown in FIG. 14, the front-end | tip part 621 in each coil receiving part 62 of the inserter jig | tool 6 is inserted in the insertion recessed part 312 in each coil winding frame 3 of the winding jig | tool 2. As shown in FIG. And by this insertion, each coil winding frame 3 and each coil receiving part 62 are connected, and each transfer for transferring each single pole coil 90 by each coil winding frame 3 and each coil receiving part 62 is carried out. A route 60 is formed.
Further, at the time of the above insertion, the distal end portion 621 of each coil receiving portion 62 is inserted and disposed in the entire ring of each single-pole coil 90 in each coil winding frame 3.

  Next, as shown in FIG. 15, as the separation step, each outer winding frame portion 32 in each coil winding frame 3 is moved to the separation position 302. At this time, the outer diameter of each coil winding frame 3 is reduced by forming a state of becoming smaller in the forward direction. Therefore, each single pole coil 90 is detached from each coil winding frame 3.

  Next, as shown in FIG. 16, the payout core 23 of the take-up jig 2 is advanced toward the inserter jig 6. At this time, each single-pole coil 90 wound around the outer periphery of each coil winding frame 3 is pushed out to the specified position where it abuts on the push-out insertion core 61 of the inserter jig 6.

At this time, each single-pole coil 90 can be transferred from each coil winding frame 3 to each coil receiving portion 62 while each transfer route 60 is maintained in the ring of each single-pole coil 90.
Thereafter, as shown in FIG. 17, the winding jig 2 is retracted in the retracting direction away from the inserter jig 6, and the transfer of the continuous coil 9 including the single-pole coils 90 to the inserter jig 6 is completed. To do.

Next, the coil insertion process will be described.
As shown in FIGS. 18 to 20, in this coil insertion step, the continuous coil 9 held by the inserter jig 6 is inserted and arranged in a plurality of slots 810 formed on the inner peripheral surface of the stator core 81.
That is, as shown in FIGS. 18 and 19, in the coil insertion step, first, the coil receiving portions 62 of the inserter jig 6 are arranged to face the inner peripheral surface side of the stator core 81. At this time, the guide portions 63 are arranged to face the teeth 811 between the slots 810 on the inner peripheral surface of the stator core 81.

  Next, as shown in FIG. 20, the extrusion insertion core 61 is advanced toward the stator core 81. At this time, the electric wire 99 in each single-pole coil 90 held by each coil receiving portion 62 is inserted and arranged in each slot 810. When the distal end of the push-out insertion core 61 advances beyond the distal end of each coil receiving portion 62, each single-pole coil 90 is inserted and disposed in each slot 810, and the continuous coil 9 can be assembled to the stator core 81. .

  As described above, the stators in the three-phase motor composed of the U phase, the V phase, and the W phase were manufactured by performing the first and second embodiments. Further, in this example, the winding jig 2 has four coil winding frames 3 and three crossing winding frames 41, and the inserter jig 6 includes a coil receiving portion 62 and a guide portion 63. Each of them had eight.

  Then, a quadrupole coil was formed as the continuous coil 9 in which the four single-pole coils 90 are connected in the winding jig 2, and this four-pole coil was transferred to the inserter jig 6 twice. Then, two four-pole coils were assembled from the inserter jig 6 to the stator core 81, and two U-pole coils were connected to form a U-phase consisting of eight-pole coils. Similarly, the V-phase and W-phase were assembled as described above, and two 4-pole coils were connected to form an 8-pole coil.

The coil forming / inserting device 5 forms the continuous coil 9 in the winding jig 2, reliably transfers each single-pole coil 90 to each coil receiving portion 62, and transfers it to the inserter jig 6 as the continuous coil 9. It can be placed.
That is, the winding jig 2 is formed by arranging a plurality of coil winding frames 3, and in the winding jig 2, a single pole coil 90 is formed on each coil winding frame 3, and a continuous pole is formed. A coil 9 can be formed. Therefore, each single pole coil 90 can be formed in each coil winding frame 3 in which the mutual positional relationship is fixed, and a jumper formed between the single pole coils 90 wound around each coil winding frame 3 The length of 995 can be stabilized.

  Further, the inserter jig 6 has each coil receiving portion 62 into which the tip end portion 621 is inserted into the insertion recess 312 of each coil winding frame 3, and each coil winding frame 3, each coil receiving portion 62, Are connected to each other, the coil winding frames 3 and the coil receiving portions 62 can form the transfer routes 60. Therefore, when each single-pole coil 90 is delivered from each coil winding frame 3 to each coil receiving portion 62, each single-pole coil 90 maintains each transfer route 60 in its ring, and each transfer route 60 Can be reliably delivered along.

Each single pole coil 90 can be transferred to the coil receiving portion 62 almost simultaneously. Therefore, at the time of delivery, the winding order of the electric wires 99 in each single-pole coil 90 is hardly different from the winding order in which the winding is performed. That is, the winding order of each single-pole coil 90 whose winding diameter increases from the one side to the other side is not changed when it is transferred to the inserter jig 6, and It can be transferred in an aligned state.
Therefore, the continuous coil 9 can be transferred from the winding jig 2 to the inserter jig 6 with almost no change in the formation state of the continuous coil 9.

(Example 3)
As shown in FIG. 21, the coil forming apparatus X1 of this example includes a plurality of single-pole coils X90 formed by winding an electric wire X99 in a loop shape, and the winding directions of adjacent single-pole coils X90 are reversed. The continuous-pole coil X9 is formed. In FIG. 21, the winding direction of each single-pole coil X90 is indicated by an arrow G.
As shown in FIGS. 22 to 24, the coil forming apparatus X1 of this example includes the following winding jig X2 and rotating apparatus X20. The winding jig X2 includes an index holder X22 as a jig base, a plurality of coil winding frames X3 disposed on the index holder X22 to wind the single pole coil X90, and the single pole coil. It has a crossover adjustment pin X41 as a crossover adjustment section for adjusting the length of the crossover X995 connecting X90. Further, the rotating device X20 is configured such that the entire winding jig X2 is wound on the winding axis XC1 in any one of the coil winding frames X3 that winds the electric wire X99 among the plurality of coil winding frames X3 or the winding axis XC1. It is rotated around an axis substantially parallel to the winding axis XC1.

The coil winding frames X3 are arranged on the index holder X22 so that their winding axes XC1 are substantially parallel to each other and are arranged on a circumference E1 that forms a virtual arc E1. Further, the crossover adjustment pin X41 of this example is one of the coil windings so as to be positioned between the coil windings X3 adjacent to each other and wound around the wire X99 among the plurality of coil windings X3. Arranged in the frame X3.
FIG. 23 is a diagram schematically showing a state in which the repetitive coil X9 is formed in the coil forming apparatus X1.
This will be described in detail below.

Unless otherwise specified, the configuration of the coil forming apparatus X1 of the present example is the same as the configuration of the coil forming apparatus 1 shown in the first embodiment.
As shown in FIGS. 22 and 24, the rotating device X20 of the present example has a turning arm X21 that can turn around a turning center axis XC2, and the winding jig X2 has the turning pivot X2 as described above. The index holder X22 is provided so as to be movable with respect to the arm X21. The plurality of coil winding frames X3 are disposed on the index holder X22 in a state in which the winding axis XC1 is disposed substantially parallel to the turning center axis XC2. The rotating device X20 corresponds to the turning device in the first embodiment.
And the coil forming apparatus X1 of this example also moves the index holder X22 in the same manner as in the first embodiment, so that the coil winding frame X3 for winding the wire X99 is sequentially brought closer to the turning center axis XC2. It is configured to be able to.

  As shown in FIGS. 23 and 24, the coil winding frames X3 of this example are radially arranged on the outer peripheral surface of the index holder X22 at substantially equal intervals. Each coil winding frame X3 is arranged such that its winding axis XC1 is arranged on a virtual circumference E1. Further, the winding jig X2 of this example is capable of forming two continuous-pole coils X9 formed by connecting four single-pole coils X90, and four coil winding frames X3 as one set. I have 2 sets.

  That is, as shown in FIG. 23, the winding jig X2 includes a first coil winding frame X3a for forming a first single-pole coil X90a located at one end of the continuous-pole coil X9, and a continuous-pole The second coil winding frame X3b and the third coil winding frame X3c for forming the second single-pole coil X90b and the third single-pole coil X90c located in the middle part of the coil X9, respectively, and the continuous-pole coil X9 One set includes the fourth coil winding frame X3d for forming the fourth single-pole coil X90d located at the other end of the two.

  Further, as shown in FIG. 23, the crossover adjusting pin X41 of this example is disposed on the second coil winding frame X3b and the fourth coil winding frame X3d, and the first coil winding frame X3a. And the third coil winding frame X3c. Specifically, the first wire adjustment pin X41a located between the first coil winding frame X3a and the second coil winding frame X3b, the second coil winding frame X3b, and the third coil winding frame. The second crossover adjustment pin X41b located between the X3c and the X3c is fixed to the second coil winding frame X3b. Further, the third connecting wire adjusting pin X41c located between the third coil winding frame X3c and the fourth coil winding frame X3d is fixed to the fourth coil winding frame X3d. Two sets of the first to third crossover adjustment pins X41a to X41c are arranged. The crossover adjustment pin X41 of this example corresponds to the crossover winding frame 41 shown in the first embodiment.

  Moreover, as shown in FIG. 23, each winding surface X45 which winds the electric wire X99 in each said crossing adjustment pin X41 is the outer periphery end in each winding surface X35 which winds the electric wire X99 of each said coil winding frame X3. It is located inside or near the virtual circle E2 that passes through the portion X355. The outer peripheral end portion X355 refers to a plurality of coil windings radially disposed on the index holder X22 (disposed on the virtual circumference E1) on the winding surface X35 of each coil winding frame X3. This is the part of the frame X3 that is farthest from the arrangement center XC3 (see FIGS. 26 and 28).

  Specifically, a part of the winding surface X45 of the first crossover adjustment pin X41a and the third crossover adjustment pin X41c is located in the vicinity of the virtual circle E2, and the remaining part Is located inside the virtual circle E2. That is, the winding surface X45 of the first crossover adjustment pin X41a and the third crossover adjustment pin X41c is formed so as to intersect with the virtual circle E2. Further, the entire winding surface X45 of the second crossover adjusting pin X41b is located inside the virtual circle E2.

Further, as shown in FIG. 23, each coil winding frame X3 has a substantially rectangular cross-sectional shape in a direction orthogonal to each winding axis XC1. Each coil winding frame X3 is disposed on the index holder X22 with its long side in a substantially rectangular shape facing the rotation center axis XC3 of the index holder X22 in the radial direction. The arrangement center XC3 of the plurality of coil winding frames X3 arranged on the virtual circumference E1 is the same as the rotation center axis XC3 of the index holder X22.
In this example, a substantially rectangular single-pole coil X90 can be formed on each coil winding frame X3. The continuous coil X9 has a long side portion of the substantially rectangular single-pole coil X90 as a stator core. Or it can assemble | attach to these well toward the axial direction of a rotor core.

  Further, as shown in FIGS. 23 and 28, the wire X99 is connected to a pair of corner portions X350 located in the direction of the rotation center axis XC3 of the index holder X22 on each winding surface X35 of each coil winding frame X3. A gap forming surface X36 for forming a gap X360 is provided between adjacent coil winding frames X3 that are passed and wound. And since the coil forming apparatus X1 of this example forms the continuous coil X9 in which the winding directions of the adjacent single pole coils X90 are opposite to each other, the connecting wire X995 is It is passed between the gap forming surface X36 on the winding surface X35 of one coil winding frame X3 adjacent to each other and the outer peripheral end X355 on the winding surface X35 of the other coil winding frame X3 adjacent to each other.

  Specifically, as shown in FIGS. 23 and 25, the connecting wire X995 is moved from the gap forming surface X36 on the winding surface X35 of the first coil winding frame X3a by the first connecting wire adjusting pin X41a. It is passed to the outer peripheral end X355 in the winding surface X35 of the second coil winding frame X3b. Further, the connecting wire X995 is connected to the winding surface X35 of the third coil winding frame X3c from the outer peripheral end X355 of the winding surface X35 of the second coil winding frame X3b by the second connecting wire adjusting pin X41b. It is passed to the gap forming surface X36. Further, due to the third connecting wire adjusting pin X41c, the connecting wire X995 is changed from the gap forming surface X36 on the winding surface X35 of the third coil winding frame X3c to the winding surface X35 of the fourth coil winding frame X3d. It is passed to the outer peripheral end X355.

  23, the winding surface X45 of the connecting wire adjusting pin X41 for winding the connecting wire X995 is the gap forming surface X36 on the winding surface X35 of the one coil winding frame X3. It is formed in the position which can be pulled out by contacting. In addition, the crossover wire X995 is closer to the one coil winding frame X3 than the other coil winding frame X3, and extends from the gap forming surface X36 on the winding surface X35 of one coil winding frame X3. It is pulled out to X41.

  Specifically, the winding surface X45 of the first connecting wire adjusting pin X41a fixed to the second coil winding frame X3b has the connecting wire X995 in contact with the winding surface X995 wound around the first coil winding frame X3a. The surface X35 is formed at a position where the surface X35 can be brought out of contact with the gap forming surface X36. The winding surface X45 of the second connecting wire adjusting pin X41b fixed to the second coil winding frame X3b forms a gap on the winding surface X35 of the third coil winding frame X3c. It is formed at a position where it can be brought out of contact with the surface X36. The winding surface X45 of the third connecting wire adjusting pin X41c fixed to the fourth coil winding frame X3d forms a gap in the winding surface X35 of the third coil winding frame X3c. It is formed at a position where it can be brought out of contact with the surface X36.

  Further, the first coil winding from the gap forming surface X36 on the winding surface X35 of the first coil winding frame X3a to the winding surface X45 of the first crossover adjusting pin X41a is greater than that of the second coil winding frame X3b. A crossover X995 is drawn at a position close to the frame X3a. Further, the third coil winding than the second coil winding frame X3b extends from the gap forming surface X36 on the winding surface X35 of the third coil winding frame X3c to the winding surface X45 of the second connecting wire adjusting pin X41b. A crossover X995 is drawn at a position close to the frame X3c. Further, the third coil winding than the fourth coil winding frame X3d is from the gap forming surface X36 on the winding surface X35 of the third coil winding frame X3c to the winding surface X45 of the third crossover adjusting pin X41c. A crossover X995 is drawn at a position close to the frame X3c.

By providing the gap forming surface X36 on each winding surface X35 of each coil winding frame X3, the electric wire X99 in the single pole coil X90 wound around each coil winding frame X3 is wound around the coil winding frame X3 adjacent to each other. It is possible not to cross the electric wire X99 in the rotated single pole coil X90.
Then, the winding surface X45 of the connecting wire adjusting pin X41 is formed at a position where the connecting wire X995 can be pulled out by coming into contact with the gap forming surface X36 in the winding surface X35 of any one of the coil winding frames X3. Thus, the connecting wire X995 does not block the gap X360 between the gap forming surfaces X36 of the adjacent coil winding frames X3. Further, even after the single pole coil X90 is formed on each coil winding frame X3, the gap X360 can be maintained between the single pole coils X90 in each coil winding frame X3.

  Thereby, for example, when passing the continuous coil X9 formed by connecting the single-pole coil X90 from the plurality of coil winding frames X3 to an inserter jig for inserting and arranging the same in the stator core or the rotor core, The guide part of the inserter jig can be easily arranged to face the gap X360. Therefore, it is easy to transfer the above-mentioned continuous coil X9 to the inserter jig.

  Further, as shown in FIG. 22, each coil winding frame X3 is arranged so as to be able to advance and retract in the direction of the turning center axis XC2 with respect to the index holder X22 in the winding jig X2, as in the first embodiment. It is. Further, in the winding jig X2 of this example, similarly to the first embodiment, any one coil winding frame X3 that winds the wire X99 among the plurality of coil winding frames X3 is used as the remaining coil. The wire X99 is wound in a state of being advanced in the forward direction D1 away from the revolving arm X21 rather than the winding frame X3 and protruding from the remaining coil winding frame X3.

Further, as shown in FIG. 24, the first crossover adjustment pin X41a and the second crossover adjustment pin X41b are disposed on the second coil winding frame X3b, and this second coil winding frame. It is configured to advance and retreat with X3b. The third connecting wire adjusting pin X41c is disposed on the fourth coil winding frame X3d, and is configured to advance and retreat together with the fourth coil winding frame X3d. Therefore, each crossover adjustment pin X41 of this example does not need to be advanced or retracted independently, and no special mechanism for advancing and retreating the crossover adjustment pin X41 is provided.
As described above, the coil winding frames X3 and the connecting wire adjusting pins X41 are disposed so as to be able to advance and retract in the direction of the turning center axis XC2 with respect to the index holder X22 of the winding jig X2.

  FIGS. 25-30 is a figure which shows the 2nd coil winding frame X3b which arrange | positioned the said 1st, 2nd crossover adjustment pin X41a, b. The fourth coil winding frame X3d provided with the third crossover adjustment pin X41c is the same as the second coil winding frame X3b except for the second crossover adjustment pin X41b. . The first and third coil winding frames X3a, c are the same as the second coil winding frame X3b except for the first and second crossover adjustment pins X41a, b.

Further, as shown in FIGS. 25 to 30, each of the coil winding frames X <b> 3 includes an inner winding portion X <b> 31 as a fixed winding portion fixed to the index holder X <b> 22 in the winding jig X <b> 2, And an outer reel portion X32 as a movable reel portion disposed opposite to the portion X31.
The outer winding frame portion X32 is used when the electric wire X99 is wound around the rotation start point portion X320 formed in the vicinity of the retreating side end portion X321 in the forward / backward direction of the inner winding frame portion X31. A winding position X301 (see FIGS. 25 and 26), and a separation position X302 (see FIGS. 29 and 30) when the single-pole coil X90 after the winding is detached from the coil winding frame X3. It can be rotated so as to change the distance between the inner reel part X31.

  Further, as shown in FIGS. 25 and 27, each of the connecting wire adjusting pins X41 is directed from the retreating side end portion X321 in the advancing / retreating direction in the outer winding frame portion X32 of any one of the coil winding frames X3 toward the forward moving direction D1. Further, it is formed so as to project from the forward end X311 in the forward / backward direction in the inner winding part X31 of any one of the coil windings X3 toward the backward direction D2.

  Specifically, as shown in FIGS. 25 and 27, the first crossover adjustment pin X41a advances from the retreat-side end portion X321 in the advancing / retreating direction of the outer winding portion X32 of the second coil winding frame X3b. The second connecting wire adjusting pin X41b protrudes in the direction D1 and extends in the backward direction D2 from the forward end X311 in the forward / backward direction of the inner winding part X31 of the second coil winding frame X3b. It is formed to project toward. Further, the third crossover adjusting pin X41c is formed to project from the retreat-side end portion X321 in the advancing / retreating direction in the outer winding portion X32 of the fourth coil winding frame X3d toward the advancing direction D1.

  When the single pole coil X90 formed on each coil winding frame X3 is detached, when the outer winding frame portion X32 of the second coil winding frame X3b is rotated to the separation position X302, The connecting wire adjusting pin X41a can also be rotated simultaneously. At this time, when the outer reel portion X32 of the fourth coil reel X3d is rotated to the disengagement position X302, the third crossover adjustment pin X41c can also be rotated at the same time. .

  Therefore, even if a part of the winding surface X45 of the first crossover adjustment pin X41a fixed to the outer winding frame portion X32 of the second coil winding frame X3b is located in the vicinity of the virtual circle E2, The connecting wire X995 that has been wound as described above can be easily detached from the first connecting wire adjusting pin X41a. Further, even if a part of the winding surface X45 of the third connecting wire adjustment pin X41c fixed to the outer winding frame portion X32 of the fourth coil winding frame X3d is located in the vicinity of the virtual circle E2, The wrapping wire X995 that has been wound can be easily detached from the third linking wire adjustment pin X41c.

Further, the second connecting wire adjusting pin X41b arranged in the vicinity of the forward end portion X311 in the forward / backward direction in the inner reel portion X31 of the second coil reel X3b is connected to the inner reel portion X31. Detachable.
When the single-pole coil X90 after the above winding is detached from the second coil winding frame X3b, the second connecting wire adjusting pin X41b is connected to the inner winding frame portion X31 of the second coil winding frame X3b. Can be removed from. Therefore, the second crossover adjusting pin X41b does not become an obstacle when the single-pole coil X90 is detached, and the single-pole coil X90 can be more easily detached from the second coil winding frame X3b.

  Further, as shown in FIGS. 25 and 27, the first connecting wire adjusting pin X41a disposed at the retreating side end portion X321 of the outer winding portion X32 of the second coil winding frame X3b is a second coil. It faces the first winding surface portion X351 that winds the wire X99 first on the winding surface X35 of the winding frame X3b. Further, the second connecting wire adjusting pin X41b disposed at the forward end X311 in the inner winding part X31 of the second coil winding frame X3b is on the winding surface X35 of the second coil winding frame X3b. Finally, it faces the final winding surface portion X354 where the wire X99 is wound.

  As shown in FIGS. 23, 32, and 33, the electric wire X99 wound around the first coil winding frame X3a extends from the first coil winding frame X3a to the outside of the second coil winding frame X3b. After passing to the first connecting wire adjusting pin X41a disposed at the retreating side end X321 in the winding frame part X32, winding on the first winding surface part X351 on the winding surface X35 of the second coil winding frame X3b It can be performed. Further, after winding the electric wire X99 up to the final winding surface portion X354 on the winding surface X35 of the second coil winding frame X3b, the forward movement in the inner winding portion X31 of the second coil winding frame X3b is performed. It can be passed to the second crossover adjustment pin X41b arranged at the side end X311. Therefore, the arrangement of the first crossover adjustment pin X41a and the second crossover adjustment pin X41b does not hinder the winding of the wire X99 around the second coil winding frame X3b. The electric wire X99 can be smoothly passed between the second coil winding frame X3b, the first crossover adjustment pin X41a, and the second crossover adjustment pin X41b.

Further, as shown in FIGS. 25 and 27, the third connecting wire adjusting pin X41c disposed at the retreating side end portion X321 of the outer winding frame portion X32 of the fourth coil winding frame X3d is a fourth coil. It faces the first winding surface portion X351 that winds the wire X99 first on the winding surface X35 of the winding frame X3d.
As shown in FIGS. 23 and 35, similarly to the first connecting wire adjusting pin X41a, the electric wire X99 wound around the third coil winding frame X3c is connected to the third coil winding frame X3c. After passing to the third connecting wire adjusting pin X41c disposed at the retreat-side end portion X321 of the outer coil portion X32 of the fourth coil reel X3d, the winding surface of the fourth coil reel X3d Winding can be performed on the first winding surface portion X351 at X35.

  As described above, the first coil winding frame X3a and the third coil winding frame X3c do not have the crossover adjustment pin X41, and the second coil winding frame X3b, the fourth coil winding frame X3d, and the like. The crossover adjustment pin X41 is disposed on the side. In the winding jig X2 of this example, the coil winding frame X3 in which the crossover adjustment pin X41 is disposed and the coil winding frame X3 in which the crossover adjustment pin X41 is not disposed are alternately adjacent to each other. Set up.

  Therefore, when the electric wire X99 is wound and wound around each coil winding frame X3 and each crossover adjustment pin X41, these forward and backward movement operations can be facilitated. The length of the connecting wire X995 between the first single-pole coil X90a and the second single-pole coil X90b and the length of the connecting wire X995 between the second single-pole coil X90b and the third single-pole coil X90c. The positions of the first crossover adjustment pin X41a and the second crossover adjustment pin X41b with respect to the second coil winding frame X3b can be easily determined. Further, the third crossover adjustment pin X41c for the fourth coil winding frame X3d is optimized so that the length of the crossover wire X995 between the third single-pole coil X90c and the fourth single-pole coil X90d is optimized. Can be easily determined.

  Further, as shown in FIGS. 25 and 27, a flange portion X411 in which the diameter of the winding surface X45 of each crossover adjustment pin X41 is increased is formed at the tip of each crossover adjustment pin X41. Specifically, in the first crossover adjusting pin X41a, a collar portion X411 is formed at the tip portion directed in the forward direction D1. And the collar part X411 in this 1st wiring adjustment pin X41a is the first winding surface part X351 which winds the electric wire X99 for the first time in the winding surface X35 of the 2nd coil winding frame X3b, and a 2nd coil It is formed at a position facing the vicinity of the boundary between the winding surface X35 of the winding frame X3b and the second winding surface portion X352 that winds the wire X99 for the second time.

  Further, in the second crossover adjustment pin X41b, a collar portion X411 is formed at the tip end portion directed in the backward direction D2. And the collar part X411 in this 2nd connecting wire adjustment pin X41b is the 2nd winding surface part X354 which winds the electric wire X99 in the last turn in the winding surface X35 of the 2nd coil winding frame X3b, and 2nd. The coil winding frame X3b is formed at a position facing the vicinity of the boundary with the last winding surface X353 that winds the wire X99 one time before the last winding on the winding surface X35. Yes.

In this example, 6 turns (6 rotations) of electric wire X99 are wound around each coil winding frame X3. For this reason, the last winding surface portion X353 of the last turn is the fifth winding surface portion X353.
By forming each of the flange portions X411, it is possible to easily prevent the electric wire X99 wound around the winding surface X45 of each crossover adjustment pin X41 from being unexpectedly disconnected.

  Further, as shown in FIGS. 23 and 28, the winding surface X45 on which the wire X99 is wound around each of the connecting wire adjustment pins X41 is 1 / of the short side width W of the substantially rectangular coil winding frame X3. It is formed having a radius of curvature R of 2 or more. That is, the radius of curvature R of the winding surface X45 of each crossover adjusting pin X41 satisfies the relationship R ≧ W / 2. Therefore, the connecting wire X995 wound around the winding surface X45 of each connecting wire adjusting pin X41 is not bent and deformed to be smaller than ½ of the short side width W of each coil winding frame X3. Therefore, the crossover wire X995 wound around each crossover adjustment pin X41 can be held in a good state with little bending deformation.

  As described above, each of the connecting wire adjusting pins X41 of this example is formed so that the curvature radius R of the winding surface X45 becomes larger than W / 2. The winding of the wire X99 at the first crossover adjustment pin X41a and the second crossover adjustment pin X41b is performed on the side opposite to the side facing the winding surface X35 of the second coil winding frame X3b. A winding surface X45 which is an outer peripheral portion and has a radius of curvature R of W / 2 or more is formed on the outer peripheral portion. Further, the wire X99 is wound around the third crossover adjusting pin X41c on the outer peripheral portion on the opposite side to the side facing the winding surface X35 of the fourth coil winding frame X3d, and the W / 2 The winding surface X45 having the above curvature radius R was formed on this outer peripheral portion.

  As shown in FIGS. 37 to 39, each crossover adjusting pin X41 can be formed by a pin having a substantially circular cross section. Also in this case, the first crossover adjustment pin X41a and the third crossover adjustment pin X41c are arranged so as to lie on the virtual circle E2, and the second crossover adjustment pin X41b is the virtual circle E2. It can arrange | position inside. Further, in this case, the connecting wire X995 wound around the connecting wire adjusting pin X41 is slightly bent and deformed, but other than that, the same operational effects as the above can be obtained.

  Further, as shown in FIGS. 22 and 23, the rotating device X20 of this example is configured to change the rotation direction of the winding jig X2 each time the electric wire X99 is wound around each coil winding frame X3. Has been. In other words, the continuous coil X9 formed by the coil forming apparatus X1 of this example has the winding directions of the adjacent single-pole coils X90 reversed. Therefore, the rotation device X20 rotates the first coil winding frame X3a to the second coil winding frame X3b, assuming that the rotation direction for winding the first coil winding frame X3a is the positive rotation direction F1. Winding is performed by rotating in the reverse rotation direction F2 opposite to the normal rotation direction F1. Further, the rotating device X20 rotates around the third coil winding frame X3c by rotating in the forward rotation direction F1, and rotates around the fourth coil winding frame X3d by rotating in the reverse rotation direction F2. Do.

  In this example, a four-pole continuous coil X9 in which four single-pole coils X90 are connected is formed. On the other hand, for example, in the case of forming a three-pole continuous coil X9 in which three single-pole coils X90 are connected, the winding jig X2 does not have a crossover adjustment pin X41. The coil winding frame X3a, the second coil winding frame X3b in which the first and second crossing adjustment pins X41a and X41b are disposed, and the crossing adjustment pin X41 are not provided. 3 coil winding frames X3c.

  For example, in the case of forming a 5-pole continuous coil X9 in which 5 single-pole coils X90 are connected, the winding jig X2 is a first coil winding that does not have the crossover adjustment pin X41. A frame X3a, a second coil winding frame X3b in which the first crossover adjustment pin X41a and the second crossover adjustment pin X41b are disposed, and a third that does not have the crossover adjustment pin X41. A fourth coil comprising a coil winding frame X3c, the third crossover adjustment pin X41c, and a fourth crossover adjustment pin X41 (having the same configuration as the second crossover adjustment pin X41b). The winding frame X3d and the fifth coil winding frame X3 that does not have the connecting wire adjustment pin X41 can be configured.

Hereinafter, a method of forming the continuous coil X9 in which the winding directions of the adjacent single-pole coils X90 are reversed using the coil forming apparatus X1 will be described.
As shown in FIG. 22, when forming the above-mentioned coil pole X9, the winding axis XC1 of the first coil winding frame X3a is substantially aligned with the turning center axis XC2 of the turning arm X21.
And as shown in FIG. 31, one said 1st coil winding frame X3a is advanced with respect to the said index holder X22, and is made to protrude in the said advance direction D1 rather than the remaining coil winding frames X3. Further, the electric wire X99 is supplied to the winding jig X2, and the end of the electric wire X99 is fixed to an appropriate position of the winding jig X2.

  As shown in FIG. 31, when the swing arm X21 is rotated in the normal rotation direction F1 about the rotation center axis XC2, the first coil winding frame X3a is rotated in the normal rotation direction about the winding axis XC1. Rotate to F1. At this time, the electric wire X99 is wound around the first coil winding frame X3a by supplying the electric wire X99 from a direction substantially orthogonal to the winding axis XC1 of the first coil winding frame X3a. Then, as shown in FIG. 32, the first single-pole coil X90a is formed by winding the wire X99 a plurality of times around the first coil winding frame X3a.

  Next, as shown in FIG. 32, one of the second coil winding frame X3b and the first and second connecting wire adjusting pins X41a, b are advanced, and protrude in the forward direction D1 from the remaining coil winding frame X3. At the same time, the first coil winding frame X3a is retracted. Further, the index holder X22 is rotated by a predetermined angle about the rotation center axis XC3, and the winding axis XC1 of the second coil winding frame X3b is substantially aligned with the rotation center axis XC2 of the swing arm X21. . At this time, the electric wire X99 wound on the final winding surface portion X354 in the winding surface X35 of the first coil winding frame X3a is provided with the first crossover adjustment disposed on the second coil winding frame X3b. It is passed to the winding surface X45 of the pin X41a.

Then, as shown in FIG. 32, the swing arm X21 is rotated in the reverse rotation direction F2 around the rotation center axis XC2, and the second coil winding frame X3b is rotated in the reverse rotation direction F2. At this time, the electric wire X99 is wound around the winding surface X45 of the first crossover adjusting pin X41a and is wound around the initial winding surface portion X351 of the winding surface X35 of the second coil winding frame X3b.
And as shown in FIG. 33, the electric wire X99 is wound sequentially from the first winding surface portion X351 to the final winding surface portion X354, and is wound around the second crossover adjustment pin X41b facing the final winding surface portion X354. It is wound around the surface X45. Thus, the second single-pole coil X90b is formed.

  Next, as shown in FIG. 34, one of the third coil winding frames X3c is advanced and protruded in the advance direction D1 from the remaining coil winding frames X3, and the second coil winding frame X3b and the first coil winding frame X3 Then, the second crossover adjustment pins X41a, b are retracted. Further, the index holder X22 is rotated by a predetermined angle about the rotation center axis XC3, and the winding axis XC1 of the third coil winding frame X3c is substantially aligned with the rotation center axis XC2 of the swing arm X21. . Then, the electric wire X99 wound around the winding surface X45 of the second crossover adjusting pin X41b is passed to the initial winding surface portion X351 on the winding surface X35 of the third coil winding frame X3c.

  Then, the turning arm X21 is rotated in the normal rotation direction F1 about the rotation center axis XC2, and the second coil winding frame X3b is rotated in the normal rotation direction F1. At this time, the electric wire X99 is sequentially wound from the initial winding surface portion X351 to the final winding surface portion X354 on the winding surface X35 of the third coil winding frame X3c, thereby forming a third single-pole coil X90c.

  Next, as shown in FIG. 35, one of the fourth coil winding frame X3d and the third crossover adjusting pin X41c is advanced, and protrudes in the advance direction D1 from the remaining coil winding frame X3. 3 coil winding frame X3c is retracted. Further, the index holder X22 is rotated by a predetermined angle around the rotation center axis XC3, and the winding axis XC1 of the fourth coil winding frame X3d is substantially aligned with the rotation center axis XC2 of the swing arm X21. . At this time, the electric wire X99 wound around the final winding surface portion X354 in the winding surface X35 of the third coil winding frame X3c is provided with the third crossover adjustment disposed on the fourth coil winding frame X3d. It is passed to the winding surface X45 of the pin X41c.

Then, the swing arm X21 is rotated in the reverse rotation direction F2 around the rotation center axis XC2, and the fourth coil winding frame X3d is rotated in the reverse rotation direction F2. At this time, the electric wire X99 is wound around the winding surface X45 of the third crossover adjusting pin X41c and is wound around the initial winding surface portion X351 on the winding surface X35 of the fourth coil winding frame X3d. Then, the electric wire X99 is sequentially wound from the initial winding surface portion X351 to the final winding surface portion X354 to form the fourth single-pole coil X90d.
Thereafter, as shown in FIG. 36, the fourth coil winding frame X3d and the third crossover adjustment pin X41c are retracted to connect the first to fourth single pole coils X90a to Xd. X9 can be formed (see FIG. 21).

  As described above, in the coil forming method for forming the continuous coil X9, after the wire X99 is wound around the first coil winding frame X3a, the second coil winding frame X3b and the first coil winding frame X3 are wound. The second crossover adjustment pins X41a, b can be advanced simultaneously. Then, the electric wire X99 is wound around the second coil winding frame X3b to form the second single-pole coil X90b, and the electric wire X99 is also wound around the first and second crossover adjustment pins X41a, b. In each case, a crossover X995 can be formed.

  In addition, after the wire X99 is wound around the third coil winding frame X3c, the fourth coil winding frame X3d and the third crossover adjustment pin X41c are simultaneously advanced, and the fourth coil The wire X99 is wound around the winding frame X3d to form the fourth single-pole coil X90d, and the wire X99 is also wound around the third crossover adjustment pin X41c to form the crossover X995. . Therefore, the wire X99 can be easily wound around each crossover adjustment pin X41, and the time required to form each crossover X995 can be shortened.

  Also in this example, the winding coil X2 was rotated by the rotating device X20 to form the continuous coil X9. Therefore, it is possible to form each single-pole coil X90 in each coil winding frame X3 without causing twisting of the electric wire X99, and it is possible to form the crossover wire X995 in each crossover adjustment portion X41. And according to the said coil formation apparatus X1, the single pole coil X90 and the crossover wire X995 which hardly generate | occur | produce the said twist are stably formed with respect to any coil winding frame X3 and the crossover adjustment pin X41. Thus, it is possible to stably form the continuous coil X9 that hardly generates torsion.

  Further, in the coil forming apparatus X1 of this example, the winding surface X45 of each crossover adjustment pin X41 for adjusting the length of the crossover wire X995 formed between the single-pole coils X90 is not limited to each coil. It was located inside or in the vicinity of an imaginary circle E2 passing through the outer peripheral end X355 in each winding surface X35 for winding the electric wire X99 of the winding frame X3. Therefore, the distance between the second coil winding frame X3b and the first and second crossover adjustment pins X41a, b and the distance between the fourth coil winding frame X3d and the third crossover adjustment pin X41c. And the crossover lines X995 can be formed as short as possible.

  Therefore, the entire length of the winding jig X2 can form each of the crossover wires X995 with almost no twist, and a plurality of single-pole coils X90 are connected by the crossover wires X995. Can be assembled to the stator core or the rotor core well. Further, the distance between the second coil winding frame X3b and the first and second crossover adjustment pins X41a, b and the distance between the fourth coil winding frame X3d and the third crossover adjustment pin X41c. Therefore, the winding jig X2 provided with these can be made compact.

Example 4
In this example, as shown in FIGS. 40 to 45, in order to facilitate the detachment of the single-pole coil X90 from the second coil winding frame X3b, the inner winding frame portion (fixed) of the second coil winding frame X3b is fixed. Side winding frame part) X31b, the second connecting wire adjusting pin X41b arranged in the vicinity of the forward end X311 in the advancing / retreating direction is the outer winding frame part (movable side winding frame part) of the second coil winding frame X3b. This is an example in which X32 is housed inside the second coil winding frame X3b when it is rotated to the separation position X302.

That is, as shown in FIGS. 40 to 42, the second connecting wire adjusting pin X41b of this example includes the winding surface X45, the rotation fulcrum portion X46 that becomes a fulcrum when rotating, and the outer winding frame. And an engaging portion X47 that engages with the engaged portion X326 formed in the portion X32. The engaged portion X326 of this example is a guide groove X326 formed in the protruding portion X325 disposed in the inner portion of the outer winding frame portion X32 facing the inner winding frame portion X31, and the engaging portion X47 of this example. Is a guide pin X47 formed on the second crossover adjustment pin X41b so as to be slidable in the guide groove X326.
When the outer winding frame portion X32 is at the winding position X301, the second connecting wire adjusting pin X41b is more than the winding surface X35 of the inner winding frame portion X31 and the winding surface X35 of the outer winding frame portion X32. It can project and the length of the crossover X995 can be formed to a specified length.

  Further, as shown in FIGS. 43 to 45, when the outer reel portion X32 rotates to the disengagement position X302, the guide at the second crossover adjustment pin X4b disposed on the inner reel portion X31. The pin X47 slides in the guide groove X326 in the outer reel part X32. Then, as the guide pin X47 slides in the guide groove X326, the second crossover adjustment pin X4b rotates with the rotation of the outer winding frame portion X32 around the rotation fulcrum portion X46. Then, the winding surface X45 moves inward from the outer shape when the second coil winding frame X3b is viewed from the axial direction (direction of the winding axis XC1). That is, the winding surface X45 of the second connecting wire adjusting pin X4b is substantially the same position as the surface position M1 formed by the winding surface X35 of the inner winding frame part X31 and the winding surface X35 of the outer winding frame part X32. Alternatively, it moves inward from the surface position M1.

  In this example, when the single-pole coil X90 after winding is detached from the second coil winding frame X3b, the outer winding frame portion X32 is rotated to the separation position X302 and at the same time, The crossover adjusting pin X41b can be rotated and housed in the second coil winding frame X3b. Therefore, the second crossover adjustment pin X4b does not become an obstacle when the single-pole coil X90 is detached, and the single-pole coil X90 can be more easily detached from the second coil winding frame X3b.

The winding surface X45 of the second connecting wire adjusting pin X41b is formed to have a curvature radius R that is 1/2 or more of the width W of the short side of the second coil winding frame X3b. On the other hand, as shown in FIG. 46, the winding surface X45 of the second crossover adjusting pin X41b can be formed in a substantially circular cross section.
Also in this example, the other parts are the same as those in the third embodiment, and the same effects as those in the third embodiment can be obtained.

1 is a perspective view showing a coil forming apparatus in Embodiment 1. FIG. The perspective view which shows the coil formation apparatus of the state which formed each monopolar coil in each coil winding frame in Example 1, and formed the continuous coil. Explanatory drawing which shows each coil winding frame in the state which has an outer side winding frame part in a winding position in Example 1. FIG. Explanatory drawing which shows each coil winding frame in the state which has an outer winding frame part in a detachment position in Example 1. FIG. The perspective view which shows the coil formation apparatus of Example 1 in the state which substantially matched the winding axis of the 1st coil winding frame with the turning center axis | shaft of a turning arm, and protruded from all the remaining winding frames. The perspective view which shows the coil formation apparatus of the state which winds an electric wire around the 1st coil winding frame in Example 1, and forms the monopolar coil. In Example 1, the winding axis of the first connecting wire reel is substantially aligned with the turning center axis of the swivel arm and protrudes from all the remaining reels, and an electric wire is wound around the first connecting wire reel. The perspective view which shows the coil formation apparatus of the state rotated. The perspective view which shows the coil formation apparatus of Example 1 in the state which made the winding axis of the 2nd coil winding frame substantially match | combine with the turning center axis | shaft of a turning arm, and protruded from all the remaining winding frames. The perspective view which shows the coil formation apparatus of the state which winds an electric wire around the 2nd coil winding frame in Example 1, and forms the monopolar coil. The perspective view which shows the coil formation apparatus of the state which wound the electric wire in all the winding frames in Example 1, and formed the continuous coil. Explanatory drawing which shows typically the state which wound the electric wire in all the winding frames in Example 1, and formed the continuous coil. Plane explanatory drawing which shows the coil formation insertion apparatus of the state which is transferring the continuous coil from the winding jig | tool to the inserter jig | tool in Example 2. FIG. Explanatory drawing which shows the coil formation insertion apparatus of the state which has advanced the winding-up jig | tool holding a continuous pole coil in Example 2 to an inserter jig | tool. Explanatory drawing which shows the coil formation insertion apparatus of the state which has inserted the front-end | tip part in the coil receiving part of an inserter jig in the insertion recessed part in the coil winding frame of the winding jig | tool in Example 2. FIG. Explanatory drawing which shows the coil formation insertion apparatus of the state which moved each outer winding frame part in each coil winding frame of a winding jig | tool in Example 2 to the detachment position, and removed each single pole coil from each coil winding frame. . Explanatory drawing which shows the coil formation insertion apparatus of the state which advanced the discharge | emission core of the winding jig | tool in Example 2, and pushed the continuous coil to the specified position in an inserter jig | tool. Explanatory drawing which shows the coil formation insertion apparatus of the state which retracted the winding-up jig | tool in Example 2 from the inserter jig | tool. Explanatory drawing which shows the coil formation insertion apparatus of the state which made each coil receiving part in the inserter jig in Example 2 oppose the inner peripheral surface of a stator core. Plane explanatory drawing which shows the coil formation insertion apparatus of the state in which each coil receiving part and each guide part in the inserter jig in Example 2 were made to oppose the inner peripheral surface of a stator core. Plane explanatory drawing which shows the coil formation insertion apparatus in the state which inserted and arrange | positioned the continuous coil in Example 2 to each slot of a stator core from the inserter jig | tool. Explanatory drawing which shows the continuous coil in which the winding direction of the mutually adjacent single pole coils in Example 3 is reverse. The perspective view which shows the coil formation apparatus in Example 3. FIG. Explanatory drawing which shows typically the coil formation apparatus of the state which formed each single pole coil in each coil winding frame in Example 3, and formed the continuous pole coil. The top view which shows typically the coil formation apparatus in Example 3. FIG. The perspective view which shows the 2nd coil winding frame in the state which has an outer side winding frame part in a winding position in Example 3. FIG. The side view which shows the 2nd coil winding frame in the state which has an outer side winding frame part in a winding position in Example 3. FIG. The front view which shows the 2nd coil winding frame in the state which has an outer side winding frame part in a winding position in Example 3. FIG. The top view which shows the 2nd coil winding frame in the state which has an outer side winding frame part in a winding position in Example 3. FIG. The perspective view which shows the 2nd coil winding frame in the state which has an outer winding frame part in a detachment position in Example 3. FIG. The side view which shows the 2nd coil winding frame in the state which has an outer side winding frame part in a detachment position in Example 3. FIG. The perspective view which shows the coil formation apparatus of the state which has wound the electric wire in the 1st coil winding frame in Example 3. FIG. The perspective view which shows the coil formation apparatus of the state which winds an electric wire around the 2nd coil winding frame while winding an electric wire in the 1st crossover adjustment pin in Example 3. FIG. The perspective view which shows the coil formation apparatus of the state which winds the electric wire around the 2nd coil winding frame in Example 3, and is winding the electric wire around the 2nd connecting wire adjustment pin. The perspective view which shows the coil formation apparatus of the state which has wound the electric wire in the 3rd coil winding frame in Example 3. FIG. The perspective view which shows the coil formation apparatus of the state which winds an electric wire around the 4th coil winding frame while winding an electric wire in the 3rd crossing adjustment pin in Example 3. FIG. The perspective view which shows the coil formation apparatus of the state which formed the continuous coil in Example 3. FIG. The perspective view which shows the other 2nd coil winding frame in the state which has an outer side winding frame part in a winding position in Example 3. FIG. The perspective view which shows the other 2nd coil winding frame in the state which has an outer side winding frame part in a detachment position in Example 3. FIG. The top view which shows typically the other coil formation apparatus in Example 3. FIG. The perspective view which shows the 2nd coil winding frame in the state which has an outer side winding frame part in a winding position in Example 4. FIG. The side view which shows the 2nd coil winding frame in the state which has an outer side winding frame part in a winding position in Example 4. FIG. The top view which shows the 2nd coil winding frame in the state which has an outer side winding frame part in a winding position in Example 4. FIG. The perspective view which shows the 2nd coil winding frame in the state which has an outer side winding frame part in a detachment position in Example 4. FIG. The side view which shows the 2nd coil winding frame in the state which has an outer side winding frame part in a detachment position in Example 4. FIG. The top view which shows the 2nd coil winding frame in the state which has an outer winding frame part in a detachment position in Example 4. FIG. The perspective view which shows the other 2nd coil winding frame in the state which has an outer winding frame part in a winding position in Example 4. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, X1 Coil formation apparatus 2, X2 Winding jig | tool X20 Rotating apparatus 21, X21 Turning arm C2, XC2 Turning center axis 22, X22 Index holder C3, XC3 Turning center axis 23 Discharge core 3, X3 Coil reel C1, XC1 winding axis 301, X301 winding position 302, X302 detachment position 31, X31 Inner winding frame (fixed side winding frame)
311 Front end surface 312 Insertion recess X311 Advance end 32, X32 Outer reel (movable reel)
X320 Rotating fulcrum part X321 Retreat side end part X35 Winding surface X351 Initial winding surface part X354 Final winding surface part X355 Outer peripheral edge part X36 Gap forming surface X360 Gap 41 Crossing winding frame (crossing wire adjusting part)
X41 Crossover adjustment pin (crossover adjustment section)
X411 flange 42 lead winding frame X45 winding surface 5 coil forming insertion device 6 inserter jig 60 transfer route 61 extrusion insertion core 62 coil receiving portion 621 tip 81 stator core 810 slot 9, X9 ream coil 90, X90 single pole Coil 99, X99 Electric wire 995, X995 Crossover 996 Lead wire

Claims (16)

An apparatus for forming a coil having a plurality of monopolar coils formed by winding an electric wire in a loop,
A winding jig comprising a plurality of coil winding frames for winding the monopolar coil and a crossover adjusting unit for adjusting the length of the crossover connecting the monopolar coils;
The entire winding jig is rotated around a winding axis in one of the plurality of coil winding frames that winds the electric wire or an axis substantially parallel to the winding axis. A rotating device,
Each of the coil winding frames is arranged so that the winding axes thereof are substantially parallel to each other, and a cross-sectional shape in a direction orthogonal to the winding axis has a substantially rectangular shape,
The winding surface that winds the wire in the crossover adjusting portion is formed with a radius of curvature that is 1/2 or more of the width of the short side of the substantially rectangular coil winding frame ,
Each of the coil winding frames is arranged such that the winding axis is arranged on a virtual arc . 3. The rotating device according to claim 1, wherein the rotating device has a turning arm that can turn around a turning center axis, and the winding jig is arranged to be rotatable with respect to the turning arm. Have an index holder installed,
The plurality of coil winding frames are disposed on the index holder in a state in which the winding axis is arranged substantially parallel to the turning center axis,
The coil forming apparatus is configured such that a coil winding frame for winding the electric wire can be sequentially moved closer to the turning central axis by rotating the index holder. The index holder according to claim 2, wherein the index holder is rotatably disposed on the swivel arm about a swivel center axis formed at a position offset substantially parallel to the swivel center axis.
Each of the coil winding frames is disposed on the index holder in an arc shape at substantially the same distance from the rotation center axis,
A coil forming apparatus characterized in that a coil winding frame for winding the electric wire can be sequentially brought close to the turning central axis by rotating the index holder. In Claim 2 or 3, each said coil winding frame is arranged so that advance and retreat to the direction of the above-mentioned turning center axis to the above-mentioned index holder,
A coil winding frame that winds the wire is advanced in a forward direction away from the swivel arm with respect to the remaining coil winding frame, and protrudes from the remaining coil winding frame. Forming equipment. 5. The coil winding frame according to claim 2, wherein each of the coil winding frames includes an inner winding frame portion attached to the index holder and an outer winding frame portion disposed to face the inner winding frame portion. And
The outer winding frame portion is between a winding position when winding the electric wire and a separation position when separating the monopolar coil after performing the winding from the coil winding frame. A coil forming apparatus, wherein the coil forming apparatus is rotatable so as to change a distance between the inner winding frame portion and the inner winding frame portion.   6. The coil forming apparatus according to claim 5, wherein the outer winding frame portion has a diameter gradually increased in a forward direction away from the swivel arm. In any 1 item | term of Claim 1 or 2, the said crossing adjustment part is distribute | arranged between the mutually adjacent coil winding frames which wind and pass the said electric wire among these coil winding frames. A coil forming apparatus. The coil according to any one of claims 1, 2, and 7, wherein the crossover adjusting portion is disposed on the coil winding frame and is configured to advance and retract together with the coil winding frame. Forming equipment. In any one of Claims 1, 2, or 7, The said crossover adjustment part can be advanced / retreated independently, and is comprised so that it may advance / retreat in synchronization with any of the said coil winding frame, It is characterized by the above-mentioned. Coil forming device. 10. The coil winding frame according to claim 1, wherein each coil winding frame is disposed opposite to the fixed winding frame portion fixed to the winding jig, and the fixed winding frame portion. A movable side reel portion,
  The movable side winding frame part is a winding position when winding the wire around the rotation fulcrum part formed in the vicinity of the retreating side end part in the advancing and retreating direction in the fixed side winding frame part, It can be rotated so as to change the distance between the fixed-side winding frame portion and the separation position when the single-pole coil after the winding is separated from the coil winding frame. A coil forming apparatus. In Claim 10, The said connecting wire adjustment part is the vicinity of the retreating side edge part of the advancing / retreating direction in the said movable side winding frame part of any of the said coil winding frames, and the said fixed side winding of any of the said coil winding frames. A coil forming apparatus, characterized in that the coil forming apparatus is arranged in the vicinity of a forward side end portion of the frame portion in the forward and backward direction. In Claim 11, the said crossing adjustment part distribute | arranged to the vicinity of the said receding side edge part in the said movable side winding frame part of the said coil winding frame is the first of the said electric wire in the said winding surface of the said coil winding frame. It faces the first winding surface where the winding is performed,
  The connecting wire adjusting portion disposed in the vicinity of the forward end portion of the fixed winding portion of the coil winding frame is the last to wind the electric wire at the end of the winding surface of the coil winding frame. A coil forming apparatus, wherein the coil forming apparatus is opposed to a wound surface portion. In any one of Claims 10-12, the said winding jig | tool is the said coil winding frame in which the said wiring adjustment part is not arrange | positioned, and the said wiring adjustment part in the said movable side winding frame part, respectively. A coil forming apparatus comprising: coil winding frames disposed in the vicinity of a retreat side end portion and in the vicinity of the advancing side end portion of the fixed side winding frame portion, alternately arranged adjacent to each other. . The diameter of the winding surface of the connecting wire adjusting portion is increased in diameter at the leading end portion of the connecting wire adjusting portion according to any one of claims 1, 2, 7, 8, 9, 10, 11, 12, or 13. A coil forming apparatus, characterized in that a collar portion is formed. The crossover adjustment part arranged near the advancing side end in the advancing / retreating direction in the fixed winding part of the coil winding frame according to any one of claims 11 to 14, The coil forming apparatus is detachable. The crossover adjustment part arranged near the advancing side end part in the advancing / retreating direction in the fixed winding part of the coil winding frame according to any one of claims 11 to 14 A coil forming apparatus configured to be housed in the coil winding frame in conjunction with the rotation when the movable side winding frame portion is rotated to the separation position.

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