JP2023128121A - Winding device and winding method for split core - Google Patents

Abstract

To set a crossover wire length to an appropriate length to improve productivity.SOLUTION: A winding device 20 for a split core according to the present disclosure comprises: a core supporting member 26 having a first core supporting part 29 and a second core supporting part 30, is rotatable around a rotary axis, and is slidable in a slide direction S; a wire nozzle 22; and a side guide 27 arranged on one side in the slide direction S of the core supporting member 26 to define a core accommodation space. The core supporting member 26 arranges the second core supporting part 30 at a winding position by a sliding movement from a first state in which the first core supporting part 29 is arranged at the winding position toward the above one side, and can change to a second state in which a first split core 10a is accommodated in the core accommodation space. The side guide 27 covers the first split core 10a in the second state, and restricts interference of a winding 14 toward the first split core 10a during a winding around a second split core 10b to guide the winding 14 toward the second split core 10b side.SELECTED DRAWING: Figure 5

Description

The present disclosure relates to a split core winding device and a winding method for winding a coil around a plurality of split cores arranged in a row along the circumferential direction of a rotating electric machine.

Conventionally, there is a technique of continuously winding a coil around a plurality of split cores. For example, Patent Document 1 describes a wire winding machine that is equipped with a spindle machine that rotates teeth in the axial direction, and that winds a wire around the teeth by supplying the wire from a nozzle installed on the side. This wire winding machine connects the teeth in the axial direction using a winding jig when winding the wire around the teeth. The wire winding jig is supported movably in the axial direction by guide rails installed on both sides. When these guide rails are rotated by a spindle machine, the winding jig and teeth are rotated. In the wire winding machine, the wire rod is wound around the teeth while the wire winding jig and the teeth are sent out along the guide rail. In this way, the wire winding machine described in Patent Document 1 winds the wire while displacing the wire winding jig and teeth with respect to the nozzle. A spiral guide groove for guiding a crossover wire is formed on the outer peripheral surface of the wire winding jig, and the crossover wire connects the coils while winding the wire winding jig.

JP2014-42446A

In the wire winding machine (winding device) described in Patent Document 1, a spiral guide groove for guiding the crossover wire is formed on the outer circumferential surface of the wire winding jig, and the crossover wire guides the wire winding jig. The coils are connected while rotating. However, the length of the spiral guide groove that guides the crossover wire is uniquely determined by the distance between the installation points of the split cores of the wire winding jig and the diameter of the wire winding jig. is difficult to set arbitrarily. For example, even if you want to set the connecting wire between the divided cores to be short, such as when continuously winding wires on two divided cores that are connected adjacent to each other, it is not possible to shorten the length of the connecting wire. Since this is difficult, there is a possibility that post-processing of extra crossover wires will be required after winding. This may make the work complicated and reduce productivity.

Therefore, an object of the present disclosure is to provide a split core winding device and a winding method that can set the length of the crossover wire to an appropriate length and improve productivity.

In order to solve the above problems, a first aspect of the present invention is a split core winding device that continuously winds the winding around at least two split cores each having teeth portions around which the winding is wound. , has a first core support part and a second core support part capable of supporting the split core, is rotatable around a rotation axis, and is slidable in a sliding direction intersecting the axial direction of the rotation axis. a core support member, a winding supply member that supplies the winding to the core support member, and is arranged on one side of the core support member in the sliding direction and is opened toward the other side in the sliding direction. a side guide that partitions a core storage space, and the core support member is moved by sliding toward the one side from a first state in which the first core support portion is arranged at a winding position that includes the rotation axis. , it is possible to arrange the second core support part at the winding position and to set the first divided core supported by the first core support part to a second state in which the first divided core is stored in the core storage space; , the side guide covers the first split core in the second state, and the side guide covers the first split core when winding the wire on the second split core supported by the second core support. Interference between the windings is restricted and the windings are guided to the second split core side.

A second aspect of the present invention is the split core winding device according to the first aspect, wherein an end edge of the side guide on the opening side that opens the core storage space to the other side is arranged in the opening. curved inward.

A third aspect of the present invention is the split core winding device according to the first aspect or the second aspect, wherein the split core is arranged on both sides of the teeth portion of the split core located at the winding position. and a guide for guiding the winding to a predetermined position on the teeth portion, the guide being rotatable together with the core support member and movable in the axial direction with respect to the core support member.

A fourth aspect of the present invention is the split core winding device according to the third aspect, wherein the guide is configured to leave a gap in which at least the winding can be inserted into the predetermined position of the teeth part. , moves in the axial direction with respect to the core support member depending on the winding state of the winding.

A fifth aspect of the present invention is a split core winding method in which the winding is continuously wound around at least two split cores having teeth portions around which the winding is wound, the first a first setting step of setting a first divided core on the core support portion; and a first setting step of setting the first split core on the core support portion; a first winding step of rotating the winding supply member around a rotating shaft to wind the winding around the teeth of the first split core; a sliding step of sliding the first divided core in a direction intersecting the axial direction of the rotating shaft and placing it in a position covered by the side guide; a second setting step of setting the split core, and rotating the core support member with respect to the winding supply member about the rotating shaft to wind the winding around the teeth portion of the second split core. a second winding step of rotating the wire.

A sixth aspect of the present invention is the split core winding method according to the fifth aspect, in which a guide guides the winding to a predetermined position of the teeth before the first winding step. A first guide movement step of moving the first split core to both sides of the teeth portion of the first split core set on the core support member, and before the second winding step, the guide is moved to the core support member. a second guide moving step of moving the second split core set in the member to both sides of the teeth portion, and in the first winding step, the core supporting member and the guide are moved to the winding supplying step. The member is rotated about the rotating shaft, and the guide is moved relative to the core supporting member in the axial direction of the rotating shaft, so that the winding is attached to the teeth portion of the first split core. winding, and in the second winding step, the core support member and the guide are rotated about the rotation axis with respect to the winding supply member, and the guide is rotated in the axial direction with respect to the core support member. and wind the winding around the teeth of the second split core.

A seventh aspect of the present invention is the split core winding method according to the sixth aspect, wherein in the first winding step and the second winding step, at least the The guide is moved in the axial direction relative to the core support member according to the winding state of the winding so as to create a gap into which the winding can be inserted.

According to the present disclosure, productivity can be improved by setting the length of the crossover wire to an appropriate length.

It is a perspective view of a motor. FIG. 2 is a perspective view of adjacent split cores of the motor of FIG. 1; FIG. 3 is a perspective view of two split cores. 4 is a sectional view taken along the line IV-IV in FIG. 3. FIG. 1 is a schematic diagram of a winding device according to an embodiment of the present invention. It is a side view of a winding device. It is a perspective view of a winding machine. It is a top view of a core support member and a side guide. FIG. 9 is a perspective view of FIG. 8; FIG. 3 is an explanatory diagram of the sliding movement of the core support member, in which (a) shows a first state and (b) shows a second state. 8 is a sectional view taken along the line XI-XI in FIG. 7. FIG.

Hereinafter, one embodiment of the present invention will be described based on the drawings. In each figure, a dashed-dotted line CL indicates the rotation axis (axis center) of the split core at the winding position of the winding device. Furthermore, in this embodiment, the rotation axis CL of the split core at the winding position will be described as the rotation axis CL extending in the vertical direction.

FIG. 1 is a perspective view of the motor 1. FIG. 2 is a perspective view of adjacent split cores 10a and 10b of the motor 1 shown in FIG. FIG. 3 is a perspective view of the two split cores 10a and 10b. FIG. 4 is a sectional view taken along the line IV-IV in FIG. 3.

As shown in FIG. 1, a split core winding device and a winding method according to an embodiment of the present invention are applied to, for example, a winding device and a winding method for a stator 2 of a brushless motor (rotating electric machine) 1. Ru. A brushless motor 1 (hereinafter referred to as "motor 1") includes a stator 2 press-fitted into a housing (not shown), and is arranged inside the stator 2 in the motor radial direction so as to be rotatable with respect to the stator 2. It has a rotor 3. The motor 1 is a permanent magnet synchronous motor, and is used, for example, as a drive source for a power steering device (not shown) mounted on a vehicle such as an automobile.

As shown in FIGS. 1 to 4, the stator 2 includes a stator core 4, an insulating insulator 5 attached to the stator core 4, and a coil 6. The stator core 4 of this embodiment is a split core type stator core 4 that is split in the motor circumferential direction, and is formed by connecting a plurality of split cores 10 in an annular manner in the motor circumferential direction.

The split core 10 includes a yoke portion 11 having a generally arcuate cross section that extends in the motor circumferential direction on the outside in the motor radial direction, and a yoke portion 11 that extends from an intermediate portion (approximately the center in this embodiment) in the motor circumferential direction of the inner circumferential surface of the yoke portion 11. The tooth portion 12 extends inward in the motor radial direction, and the collar portion 13 extends from the inner end of the tooth portion 12 in the motor radial direction to both sides in the motor circumferential direction. The split core 10 is formed, for example, by laminating a plurality of metal plates in the motor axial direction, and extends linearly along the motor axial direction.

Connection portions 11a and 11b are formed at both ends of the yoke portion 11 in the motor circumferential direction to connect adjacent split cores 10a and 10b. One connecting portion 11a extends in the axial direction of the motor while protruding outward in the circumferential direction of the motor. The other connecting portion 11b is formed in the shape of a groove extending in the motor axial direction while being recessed inward in the motor circumferential direction, and can be engaged with the one connecting portion 11a (see FIG. 2). By engaging the connecting portions 11a and 11b at both ends of the yoke portion 11 in the motor circumferential direction with the connecting portions 11b and 11a of the yoke portion 11 of other split cores 10 adjacent to both sides in the motor circumferential direction, a plurality of The stator core 4 can be formed by connecting the split cores 10. In a state where the stator core 4 is formed by connecting a plurality of split cores 10 in an annular manner in the motor circumferential direction, the yoke portion 11 constitutes a substantially cylindrical back yoke serving as an annular magnetic path.

A pair of slots 15 for winding the winding 14 forming the coil 6 are defined on both sides of the teeth 12 in the motor circumferential direction by the yoke 11 , the teeth 12 , and the collar 13 . That is, the slot 15 is located inside the imaginary line (two-dot chain line L in FIG. 4) connecting the end of the yoke portion 11 in the motor circumferential direction and the end of the collar portion 13 in the motor circumferential direction.

The insulator 5 is attached to the split core 10 so as to cover the teeth portion 12 . The insulator 5 covers the portion of the split core 10 that faces the slot 15 (the inner surface of the yoke portion 11 in the motor radial direction, the side surface of the tooth portion 12 in the motor circumferential direction, and the outer surface of the collar portion 13 in the motor radial direction). At the same time, both ends of the teeth portion 12 in the motor axial direction are covered. Wall portions 7 and 8 projecting in the motor axial direction from both sides in the motor radial direction are provided at portions of the insulator 5 that cover the ends of the teeth portion 12 in the motor axial direction. A winding 14 forming the coil 6 is wound between the wall portions 7 and 8 on both sides of the insulator 5 in the motor radial direction. A slit 9 (Fig. 2 ) is formed.

A plurality of layers of winding wire 14 are wound around the teeth portion 12 by concentrated winding. The winding 14 wound around the teeth portion 12 forms the coil 6. The winding 14 is wound around the teeth 12 of the split core 10 by a winding device 20 . In this embodiment, the winding device 20 continuously winds the winding 14 around two adjacent divided cores 10a and 10b. A crossover wire 14c of the winding 14 extends between the two split cores 10a and 10b around which the winding 14 is wound. The method of winding the winding 14 will be described later.

FIG. 5 is a schematic diagram of a winding device 20 according to an embodiment of the present invention. FIG. 6 is a side view of the winding device 20. FIG. 7 is a perspective view of the winding machine 21. FIG. 8 is a plan view of the core support member 26 and the side guide 27. FIG. 9 is a perspective view of FIG. 8. FIG. 10 is an explanatory diagram of the sliding movement of the core support member 26, in which (a) shows the first state and (b) shows the second state. FIG. 11 is a sectional view taken along the line XI-XI in FIG. Note that in FIGS. 6 to 10, S indicates the sliding direction S of the core support member 26, and W indicates a direction perpendicular to both the axial direction of the rotation axis CL and the sliding direction S.

As shown in FIGS. 5 to 11, the winding device 20 is a split core winding device that continuously winds the winding 14 around at least two split cores 10 having teeth portions 12 around which the winding 14 is wound. 20 includes a winding machine 21 that supports and rotates the split core 10, and a wire nozzle (winding supply member) 22 that supplies the winding 14 to the winding machine 21 side.

The winding machine 21 has two drive units 23 and 24 that face each other in the axial direction of the rotation axis CL when rotating the split core 10. The winding machine 21 of this embodiment includes a lower drive unit 23 and an upper drive unit 24 located above the lower drive unit 23.

The lower drive unit 23 includes a pedestal section 25 that can be rotated up and down, a core support member 26 that is slidably supported by the pedestal section 25, and a side guide 27 that is arranged on the side of the core support member 26. .

The pedestal portion 25 is supported by a lower rotational elevating mechanism 28, and is rotatable about the rotational axis CL, and is movable up and down along the axial direction of the rotational axis CL. For example, the rotating elevating mechanism 28 may rotatably support the pedestal section 25 using the driving force of a motor (not shown). Further, the rotary elevating mechanism 28 may support the pedestal portion 25 so as to be movable up and down using a rack and pinion, a hydraulic cylinder, or the like.

The core support member 26 is a member for supporting at least two (two in this embodiment) split cores 10, and is supported by the pedestal 25 so as to be rotatable and movable together with the pedestal 25. In addition, the core support member 26 is moved in a direction (in this embodiment, a direction S orthogonal to the axis) of the rotation axis CL (hereinafter referred to as a "slide direction S") with respect to the pedestal part 25 and a side guide 27 to be described later. )). That is, the core support member 26 is rotatable around the rotation axis CL and is slidable in a direction intersecting the axial direction of the rotation axis CL. The core support member 26 has a grip portion that grips the winding start side end 14a (hereinafter referred to as “tip portion 14a”) of the winding 14 supplied from the wire nozzle 22 and fixes it to the core support member 26 side. 26a is provided. The grip portion 26a is operated by hydraulic pressure from a hydraulic pressure supply source (not shown).

The core support member 26 has a first core support part 29 and a second core support part 30 that can support the split core 10. The first core support part 29 and the second core support part 30 are provided at positions spaced apart from each other in the sliding direction S. The split core 10 can be placed and set on each of the first core support part 29 and the second core support part 30. In the present embodiment, the first core support part 29 and the second core support part 30 are provided in a direction W in which the longitudinal direction (motor axis direction) of the split core 10 is orthogonal to both the axial direction of the rotation axis CL and the sliding direction S. (Hereinafter, referred to as "width direction W.") The split core 10 can be set in a state along the width direction W. In addition, in the following description, the side where the first core support part 29 is arranged is called the back side (one side) in the sliding direction S, and the side where the second core support part 30 is arranged is called the front side in the sliding direction S. It is called the other side. Further, the divided core 10 set in the first core support part 29 is referred to as a first divided core 10a, and the divided core 10 set in the second core support part 30 is referred to as a second divided core 10b.

The core support member 26 is in a first state where it is moved toward the front side in the sliding direction S (the state shown in FIGS. 7 to 9 and FIG. 10(a)), and a second state where it is moved toward the back side in the sliding direction S. (the state shown in FIG. 10(b)). Of the core support member 26, the part located at the winding position including the rotation axis CL when the first state is set becomes the first core support part 29, and the part located at the winding position when the second state is set becomes the first core support part 29. This becomes the second core support part 30. That is, the second core support portion 30 is at a different position depending on the slide movement distance (hereinafter simply referred to as "slide movement distance") between the first state and the second state of the core support member 26. In the first state, the second core support portion 30 is located closer to the front side in the sliding direction S than the winding position. On the other hand, in the second state, the first core support part 29 is located inside a side guide 27, which will be described later, on the back side in the sliding direction S from the winding position. When winding the first split core 10a, the winding is performed with the core support member 26 in the first state, and when winding the second split core 10b, the core support member 26 is in the first state. Winding is performed in the second state. The sliding distance of the core support member 26 can be changed depending on the desired length of the connecting wire 14c.

In this embodiment, the sliding movement distance of the core support member 26 is set to the minimum distance while ensuring a distance for winding the wire around the second split core 10b in the second state so as to minimize the crossover wire 14c. I'm keeping my distance. Note that in this embodiment, the second core support portion 30 is located at a position determined according to the sliding distance of the core support member 26, but the position is not limited to this. For example, two predetermined locations on the core support member 26 may be the first core support portion 29 and the second core support portion 30. In this case, a plurality of core support members 26 having different separation distances in the sliding direction S between the first core support part 29 and the second core support part 30 are prepared, and the The support member 26 may be replaced.

The mechanism for moving the core support member 26 in the sliding direction S is not particularly limited, and various mechanisms that can move the core support member 26 in the sliding direction S can be used. For example, in this embodiment, the core support member 26 is moved in the sliding direction S by the restoring force (biasing force) of the coil spring 31, a pressing mechanism (not shown), and a stopper (not shown). The core support member 26 is urged toward the front side in the sliding direction S by the coil spring 31 so as to be in the first state. Note that movement of the core support member 26 toward the front side in the sliding direction S compared to the first state is restricted. When changing the core support member 26 from the first state to the second state, a pressing mechanism (not shown) moves the core support member 26 toward the back in the sliding direction S against the restoring force (biasing force) of the coil spring 31. to move the slide. When the core support member 26 enters the second state, movement toward the front side in the sliding direction S is restricted by a stopper (not shown). When the movement of the core support member 26 is released from the stopper, the core support member 26 slides toward the front in the sliding direction S by the restoring force of the coil spring 31, returning from the second state to the first state.

Note that in this embodiment, one core support member 26 has the first core support part 29 and the second core support part 30, but the core support member is not limited to this. Two core support members each having a support portion (first core support portion 29 or second core support portion 30) may be used. These two core support members may be able to slide relative to the base portion 25 independently of each other.

The side guide 27 is arranged on the back side of the core support member 26 in the sliding direction S, and is fixed to the pedestal part 25. That is, the side guide 27 is supported by the pedestal part 25 so as to be rotatable and movable together with the pedestal part 25 and the core support member 26 . Furthermore, the side guides 27 do not move relative to the core support member 26 when the core support member 26 slides. The side guide 27 includes an upper plate portion 27a that extends obliquely from the back side in the sliding direction S (outside in the radial direction centering on the rotation axis CL) toward one side (upper side) in the axial direction of the rotation axis CL, and an upper plate portion 27a. It has a pair of side plate parts 27b, 27b extending from both sides of the part 27a in the width direction W toward the outside and downward in the width direction W. A core storage space 32 is defined inside the side guide 27 in which the first divided core 10a of the first core support section 29 can be stored in the second state.

The upper plate portion 27a of the side guide 27 is arranged above the split core 10 at the winding position, and partitions the upper side of the core storage space 32 and the back side in the sliding direction S. The front edge of the upper plate portion 27a in the sliding direction S extends linearly in the width direction W when viewed from above.

The pair of side plate portions 27b, 27b of the side guide 27 are arranged on the outer side in the width direction W than the split core 10 at the winding position, and partition both sides of the core storage space 32 in the width direction W. The front edge of the pair of side plate parts 27b, 27b in the sliding direction S is the width direction of the front edge of the upper plate part 27a in the sliding direction S in side view (viewed from the width direction W). It extends continuously from both ends of W toward the front side downward in the sliding direction S.

The side guide 27 has an opening 33 that opens the core storage space 32 toward the front side in the sliding direction S. The opening 33 is arranged at a position spaced apart from the split core 10 at the winding position toward the back side in the sliding direction S. The opening 33 is formed in a size that allows the first divided core 10a supported by the core support member 26 to move in the sliding direction S. The upper surface of the edge portion 34 of the side guide 27 on the side of the opening 33 (the front side in the sliding direction S) is curved toward the inside of the opening 33 so as to reduce the diameter toward the opening 33 (see FIG. 11). ).

The side guide 27 covers the first divided core 10a supported by the core support member 26 in the second state from above, from both sides in the width direction W, and from the back side in the sliding direction S (see FIG. 10(b)). . The upper surface 35 of the side guide 27 (the upper surface of the upper plate portion 27a and the pair of side plate portions 27b, 27b) receives the winding wire supplied from the wire nozzle 22 when winding the first divided core 10a in the first state. 14 to the front side in the sliding direction S. Further, the upper surface 35 of the side guide 27 prevents the winding 14 supplied from the wire nozzle 22 from interfering with the first divided core 10a when winding the wire onto the second divided core 10b in the second state. , guides the winding 14 toward the second core support portion 30 side.

As shown in FIGS. 9 and 10, the upper drive unit 24 includes a core holding member 36 and a pair of traverse guides 37a, 37a. The upper drive unit 24 is supported by an upper rotary lifting mechanism (not shown), is rotatable around the rotation axis CL in synchronization with the lower drive unit 23, and is rotatable up and down along the axial direction of the rotation axis CL. It is possible to go up and down. The rotary elevating mechanism may be a rotatable mechanism using the driving force of a motor (not shown), similar to the lower drive unit 23, or may be an elevating mechanism using a rack and pinion, a hydraulic cylinder, etc. It may be a possible mechanism.

The core holding member 36 is a member that holds the split core 10 toward the core support member 26 during winding, is arranged above the winding position, and can be rotated up and down by the above-mentioned rotary up/down mechanism of the upper drive unit 24. ing. By moving downward during winding, the core holding member 36 presses the split core 10 at the winding position toward the core support member 26 below, thereby sandwiching the split core 10 between the core support member 26 and the core support member 26 . Thereby, the core holding member 36 fixedly holds the split core 10 toward the core supporting member 26 side.

The pair of traverse guides 37a, 37a are members for guiding the winding 14 to a predetermined position of the teeth portion 12 of the split core 10 at the winding position, and are rotatably raised and lowered by the above-mentioned rotary raising and lowering mechanism of the upper drive unit 24. It is possible. In addition, the traverse guides 37a, 37a can be raised and lowered relative to the core holding member 36 by a mechanism different from the above-mentioned rotary raising and lowering mechanism of the upper drive unit 24, as shown by the two-dot chain line in FIG. 10(b). And they can be close to each other or separated from each other. The traverse guides 37a, 37a are arranged on both sides of the tooth portion 12 of the split core 10 in the motor circumferential direction with the core holding member 36 holding the split core 10 at the winding position. The traverse guides 37a, 37a have an inclined surface 38 for guiding the winding 14 to a predetermined position of the teeth portion 12 of the split core 10 at the winding position. The sloped surfaces 38 of the traverse guides 37a, 37a extend along the width direction W in a state of being sloped in a direction in which they approach each other from above to below. The winding 14 slides downward along the inclined surface 38 of the traverse guides 37a, 37a, and is guided to a predetermined position on the teeth portion 12.

The traverse guides 37a, 37a are controlled by a controller (not shown) and move up and down relative to the core support member 26 and the core holding member 36 (rotation axis CL (move in the axial direction). Thereby, the guiding position of the winding 14 with respect to the teeth portion 12 is changed. In the present embodiment, the traverse guides 37a, 37a have a space (for example, a space slightly smaller than the diameter of the winding 14) into which the winding 14 can be inserted at least at the guiding position (the above-mentioned predetermined position) of the winding 14 to the teeth portion 12. According to the winding state of the winding 14, the core support member 26 and the core holding member 36 move in the axial direction of the rotation axis CL so as to leave a large width space. Note that the winding state of the winding 14 around the teeth portion 12 can be managed by the rotation angle (number of rotations) of the split core 10 from the start of winding. The rotation angle (number of rotations) of the divided core 10 from the start of winding can be recognized from the operating state of the rotational elevation mechanism 28 of the lower drive unit 23 and the rotational elevation mechanism of the upper drive unit 24. In this way, the rotation angle (number of rotations) of the split core 10 is determined by the operation of the rotary lifting mechanism 28 and the like, so the controller (not shown) can grasp the winding state of the winding 14 in real time.

The wire nozzle 22 is a member that supplies the winding wire 14 to the winding machine 21 side, and is arranged on one side in a direction intersecting the axial direction of the rotation axis CL with respect to the winding position of the winding machine 21. Ru. For example, the wire nozzle 22 supplies the winding wire 14 from the reel R to the winding machine 21 side. The wire nozzle 22 is arranged at a height between the upper end and the lower end of the side guide 27. Before the split core 10 is rotated, the wire nozzle 22 is arranged on one side in the width direction W of the split core 10 at the winding position. The wire nozzle 22 is provided in the winding device 20 so as not to rotate with respect to the rotation of the split core 10. The winding 14 supplied from the wire nozzle 22 is wound around the teeth portion 12 by rotating and lowering the divided core 10 at the winding position.

Next, a method for winding a split core according to an embodiment of the present invention will be described. The split core winding method according to the present embodiment is a split core winding method in which the winding 14 is continuously wound around at least two split cores 10 having teeth portions 12 around which the winding 14 is wound. , a first setting process, a first guide movement process, a first winding process, a slide movement process, a second setting process, a second guide movement process, and a second winding process.

In the first setting step, the first divided core 10a is set in the first core support portion 29 of the core support member 26. Specifically, first, the core support member 26 is brought into the first state, and the first divided core 10a is placed on the first core support portion 29 at the winding position (see FIG. 8). The first split core 10a is placed on the first core support part 29 with the yoke part 11 facing downward (the collar part 13 facing upward) and the teeth part 12 standing up along the axial direction of the rotation axis CL. . The first divided core 10a is placed on the core support member 26 manually by an operator or by the operation of an automatic feeder (not shown). Next, the upper drive unit 24 is lowered, and the first split core 10a at the winding position is held between the core support member 26 and the core holding member 36, and the first split core 10a is held by the core support member 36. 26 side. As a result, the first divided core 10a is set in the first core support portion 29 of the core support member 26 in the first state.

In the first guide movement step, the tooth portion 12 of the first split core 10a set in the first setting step is moved 1 to both sides in a direction intersecting the axial direction of the rotation axis CL (slide direction S in this embodiment). The pair of traverse guides 37a, 37a are moved (see FIG. 9). The tips (lower ends) of the traverse guides 37a, 37a are arranged in the slots 15 on both sides of the teeth 12 without contacting the side surfaces of the teeth 12. At this time, there is a gap in which the winding 14 can be inserted between the tips of the traverse guides 37a, 37a and the insulator 5 on the yoke part 11 side of the first split core 10a located below. Note that the first guide moving process may be performed simultaneously with the first setting process.

The first winding process is performed after the first setting process (in this embodiment, after the first guide moving process). In the first winding step, the core support member 26, the side guide 27, and the traverse guides 37a, 37a are connected to the rotation axis relative to the wire nozzle 22 while the tip end 14a of the winding wire 14 is held toward the core support member 26 side. The winding 14 is wound around the teeth portion 12 of the first split core 10a by rotating around CL and moving the traverse guides 37a, 37a in the axial direction of the rotation axis CL with respect to the core support member 26. (See FIG. 10(a)). Specifically, first, the winding 14 supplied from the wire nozzle 22 is pulled out along the longitudinal direction of the first split core 10a, and the tip 14a of the winding 14 is pulled out from the core support member 26 side. It is gripped by the gripping part 26a and fixed to the core support member 26 side. Thereby, the tip end 14a of the winding 14 is held toward the core support member 26 side. At this time, the winding 14 is drawn out from the wire nozzle 22 to the gripping part 26a by the operator's manual operation or by the operation of an automatic supply device (not shown). Next, the lower drive unit 23 and the upper drive unit 24 are rotated up and down by the rotary lift mechanism 28 or the like. As the lower drive unit 23 and the upper drive unit 24 rotate up and down, the core support member 26 and the traverse guides 37a, 37a rotate around the rotation axis CL with respect to the wire nozzle 22, and also rotate with respect to the wire nozzle 22. Move up and down (move up and down). As a result, the first divided core 10a at the winding position rotates up and down with respect to the wire nozzle 22. In this embodiment, the first divided core 10a at the winding position is rotated clockwise when viewed from above. By the rotation of the core support member 26 relative to the wire nozzle 22, the winding 14 is pulled out from the wire nozzle 22 and wound around the slot 15 of the teeth portion 12 of the first split core 10a. When the winding 14 comes into contact with the upper surface 35 of the side guide 27, it slides along the upper surface 35 of the side guide 27 and is guided toward the first divided core 10a on the near side in the sliding direction S. At this time, the traverse guides 37a, 37a are moved around the core according to the winding state of the winding 14 so as to leave at least a gap in which the winding 14 can be inserted into the guiding position (predetermined position) of the winding 14 on the teeth part 12. The support member 26 is moved in the axial direction of the rotation axis CL (in the present embodiment, upward). Thereby, the winding 14 slides downward along the inclined surface 38 of the traverse guides 37a, 37a, and is guided to a predetermined position of the teeth portion 12.

Note that the pair of traverse guides 37a, 37a may be moved alternately and independently of each other, or may be moved simultaneously. Furthermore, when winding the winding 14 from above to below the teeth portion 12 of the first split core 10a, the traverse guides 37a, 37a may not be used. Further, in the present embodiment, the tip end 14a of the winding 14 is held by the grip portion 26a of the core support member 26, but the present invention is not limited to this. Holding the tip 14a of the winding 14 toward the core support member 26 means holding the tip 14a of the winding 14 on the side that moves together with the core support member 26 when the core support member 26 is rotated and moved up and down or slid. means to hold. For this reason, for example, by holding the tip end 14a of the winding 14 in the slit 9 of the insulator 5 of the first split core 10a that moves together with the core support member 26 (rotating up and down and sliding), the winding 14 The distal end portion 14a may be held toward the core support member 26 via the first divided core 10a.

The slide movement process is performed after winding of the winding 14 around the first divided core 10a is completed in the first winding process. In the slide movement step, the first divided core 10a, on which the winding of the winding wire 14 has been completed, is moved to the back side in the sliding direction S and placed in a position covered by the side guide 27 (see FIG. 10(b)). ). Specifically, after the winding of the winding 14 around the first divided core 10a is completed in the first winding process, the upper drive unit 24 is raised, and the core holding member 36 rotates the first divided core 10a. At the same time, the traverse guides 37a, 37a are moved above the first split core 10a. Next, the core support member 26 is moved from the first state to the back side in the sliding direction S to the second state, and the first divided core 10a is stored in the core storage space 32 of the side guide 27.

The second set process is performed after the slide movement process. In the second setting step, the second split core 10b is set in the second core support portion 30 of the core support member 26 in the second state. Specifically, first, the second split core 10b is placed on the second core support portion 30 at the winding position of the core support member 26 in the second state. The second split core 10b is placed on the second core support portion 30 with the yoke portion 11 facing downward (flange portion 13 facing upward) and the teeth portion 12 standing up along the axial direction of the rotation axis CL. . The second divided core 10b is placed on the core support member 26 manually by an operator or by the operation of an automatic feeder (not shown). Next, the upper drive unit 24 is lowered, and the second split core 10b at the winding position is held between the core support member 26 and the second split core 10b by the core holding member 36. 26 side. As a result, the second split core 10b is set in the second core support portion 30 of the core support member 26 in the second state.

In the second guide movement step, the tooth portion 12 of the second split core 10b set in the second setting step is moved 1 to both sides in a direction intersecting the axial direction of the rotation axis CL (slide direction S in this embodiment). The pair of traverse guides 37a, 37a are moved (see FIG. 10(b)). The arrangement positions of the pair of traverse guides 37a, 37a are the same as those in the first guide movement step, so the explanation thereof will be omitted. Note that the second guide moving process may be performed simultaneously with the second setting process.

The second winding process is performed after the second setting process (in this embodiment, after the second guide moving process). In the second winding step, the core support member 26, the side guide 27, and the traverse guides 37a, 37a are rotated about the rotation axis CL with respect to the wire nozzle 22, and the traverse guides 37a, 37a are rotated around the core support member 26. On the other hand, it is moved in the axial direction of the rotating shaft CL to wind the winding 14 around the teeth portion 12 of the second split core 10b. Specifically, by rotating and lowering the lower drive unit 23 and the upper drive unit 24 using the rotary lift mechanism 28 and the like, the core support member 26, the side guide 27, and the traverse guide 37a are moved in the same way as in the first winding step. , 37a are rotated up and down relative to the wire nozzle 22. As a result, the second divided core 10b at the winding position rotates up and down with respect to the wire nozzle 22. In this embodiment, the second divided core 10b at the winding position is rotated in the opposite direction to the first winding step (counterclockwise when viewed from above). By the rotation of the core support member 26, side guide 27, and traverse guides 37a, 37a with respect to the wire nozzle 22, the winding 14 is pulled out from the wire nozzle 22 and inserted into the slot 15 of the teeth portion 12 of the second split core 10b. rolled around. The upper surface 35 of the side guide 27 prevents the winding 14 supplied from the wire nozzle 22 from interfering with the first divided core 10a, and guides the winding 14 toward the second core support portion 30 side. Note that the arrangement positions and movements of the traverse guides 37a, 37a are the same as in the first winding process, so the explanation thereof will be omitted.

After the winding of the winding 14 around the second split core 10b is completed (after the second winding process), the upper drive unit 24 is raised and the second split core 10b is held by the core holding member 36. At the same time, the traverse guides 37a, 37a are moved above the second split core 10b. Next, the core support member 26 is moved from the second state toward the front side in the sliding direction S and returned to the first state. Thereby, the two divided cores 10a and 10b after the winding of the winding 14 is completed can be removed. Note that the two split cores 10a and 10b are removed from the winding device 20 after the winding is completed, either manually by an operator or by the operation of an automatic removal device (not shown).

In the winding device 20 configured as described above, the core support member 26 is slidable in a sliding direction S that intersects the axial direction of the rotation axis CL, and the first core is positioned at a winding position that includes the rotation axis CL. From the first state in which the support portion 29 is placed, the second core support portion 30 is placed in the winding position by sliding toward the back side in the sliding direction S. Therefore, after putting the core support member 26 in the first state and winding the winding 14 around the first split core 10a, the core support member 26 is put in the second state without removing the first split core 10a. Thus, the winding 14 can be continuously wound around the second divided core 10b.

Further, in the second state, the first divided core 10a supported by the first core support portion 29 is stored in the core storage space 32 within the side guide 27. The upper surface 35 of the side guide 27 prevents the winding 14 supplied from the wire nozzle 22 from interfering with the first divided core 10a, and guides the winding 14 toward the second core support portion 30 side. Therefore, when winding the second divided core 10b, the winding 14 can be suitably guided to the second divided core 10b side without interfering with the first divided core 10a. The winding 14 can be continuously wound around the cores 10a and 10b.

Furthermore, the sliding distance of the core support member 26 can be changed depending on the desired length of the connecting wire 14c. In this embodiment, the sliding movement distance of the core support member 26 is set to the minimum distance while ensuring a distance for winding the wire around the second split core 10b in the second state so as to minimize the crossover wire 14c. I'm keeping my distance. Therefore, the generation of excess crossover wires 14c can be suppressed, so there is no need to post-process the excess crossover wires 14c after the windings 14 are continuously wound around the two split cores 10a and 10b. , productivity can be improved.

Furthermore, the sliding distance of the core support member 26 can be changed depending on the desired length of the connecting wire 14c. For this reason, for example, when the winding 14 is continuously wound around the two split cores 10a and 10b arranged at positions apart in the circumferential direction of the motor 1, the core support from the first state to the second state is By appropriately setting the amount of sliding movement of the member 26, the length of the connecting wire 14c can be set to a required length.

In this manner, according to the present embodiment, the length of the connecting wire 14c can be set to an appropriate length, thereby improving productivity.

Further, the end edge portion 34 of the side guide 27 on the side of the opening 33 is curved toward the inside of the opening 33 so as to reduce in diameter toward the opening 33 . Therefore, when the winding 14 slides along the upper surface 35 of the side guide 27 and passes through the edge 34 on the opening 33 side when winding the split core 10, the winding 14 tends to bend. This can be prevented or suppressed.

In addition, since the traverse guides 37a, 37a are provided to guide the winding 14 to a predetermined position on the teeth 12 of the split core 10 at the winding position, the winding 14 can be guided to a desired position on the teeth 12 during winding. This allows the winding 14 to be wound tightly. Further, in the present embodiment, the traverse guides 37a, 37a are provided with a space (for example, larger than the diameter of the winding 14) into which the winding 14 can be inserted at least at the guiding position (the above-mentioned predetermined position) of the winding 14 to the teeth portion 12. According to the winding state of the winding 14, the core support member 26 and the core holding member 36 move in the axial direction of the rotation axis CL so as to leave a space (with a slightly larger width). Therefore, the winding 14 can be reliably wound densely, so that the density (space factor) of the winding 14 wound around the teeth portion 12 can be improved.

In the above split core winding method, after the winding of the winding 14 around the first split core 10a is completed (after the first winding step), a slide movement step is performed, and the first split core 10a is is moved to the back side in the sliding direction S and placed in a position covered by the side guide 27. Thereafter, the second divided core 10b is set at the winding position (second setting step), and the winding 14 is wound around the teeth portion 12 of the second divided core 10b (second winding step). Therefore, after the winding 14 is wound around the first divided core 10a, the winding 14 can be continuously wound around the second divided core 10b without removing the first divided core 10a.

In addition, in the slide movement process, the first divided core 10a is moved to the back side in the sliding direction S and placed in a position covered by the side guide 27, so when winding the wire onto the second divided core 10b, Interference of the winding 14 with the first divided core 10a can be prevented by the side guide 27, and the winding 14 can be suitably guided toward the second divided core 10b. Therefore, the winding 14 can be continuously wound around the two divided cores 10a and 10b.

Furthermore, in the sliding step, the first divided core 10a is moved to the back side in the sliding direction S, so the length of the crossover wire 14c can be defined by the amount of sliding movement of the first divided core 10a. Therefore, since the length of the crossover wire 14c can be set appropriately, there is no need to perform post-processing regarding the length of the crossover wire 14c (for example, post-processing of the extra crossover wire 14c), which improves productivity. can be improved.

In the first winding process and the second winding process, the traverse guides 37a, 37a are moved in the axial direction of the rotation axis CL with respect to the core support member 26, and the winding 14 is moved to the split core 10 at the winding position. It is wound around the teeth part 12 of. In this way, since the winding is performed using the traverse guides 37a, 37a that guide the winding 14 to a predetermined position on the teeth portion 12, the winding 14 can be wound tightly as described above. In addition, in the first winding step and the second winding step, at least a space in which the winding wire 14 can be inserted (for example, a diameter smaller than the diameter of the winding wire 14 The traverse guides 37a, 37a are moved in the axial direction of the rotation axis CL according to the winding state of the winding 14 so as to leave a space (with a slightly larger width). Therefore, since the winding 14 can be reliably wound tightly, the space factor of the winding 14 wound around the teeth portion 12 can be improved.

In this embodiment, the rotation axis CL of the split core 10 at the winding position is set as the rotation axis CL extending in the vertical direction, but it is not limited to this and can be set in any direction.

Further, in the present embodiment, the winding wire 14 is continuously wound around the adjacent split cores 10a and 10b by the winding device 20, but the present invention is not limited to this. For example, the winding device 20 may continuously wind the winding 14 around the split cores 10a and 10b that are arranged at positions spaced apart from each other in the motor circumferential direction.

Further, in the present embodiment, the winding 14 is continuously wound around the two divided cores 10a and 10b by the winding device 20, but the present invention is not limited to this. The winding 14 may be continuously wound around.

Further, in this embodiment, the split core 10 is set in the first core support part 29 and the second core support part 30 with the longitudinal direction of the split core 10 along the width direction W, but the present invention is not limited to this. It's not something you can do. For example, the split core 10 may be set in the first core support section 29 and the second core support section 30 with the longitudinal direction of the split core 10 along the sliding direction S. In this case, the side guide 27 may have an elongated shape in the sliding direction S.

In addition, in the present embodiment, a split core winding device and a winding method of a split core according to the present disclosure are applied to a split core of a motor (rotating electric machine) 1 used as a drive source of a power steering device or the like mounted on a vehicle such as an automobile. Although the present invention is applied to a winding device and a winding method, the present invention is not limited thereto, and can be applied to a winding device and a winding method for split cores of various rotating electric machines. For example, the split core winding device and winding method according to the present disclosure can be applied to motors (rotating electric machines) for other uses, alternators (rotating electric machines), and the like.

Although the present invention has been described above based on the above-described embodiments, the present invention is not limited to the contents of the above-described embodiments, and can of course be modified as appropriate without departing from the present invention. That is, it goes without saying that all other embodiments, examples, operational techniques, etc. made by those skilled in the art based on this embodiment are included in the scope of the present invention.

10: Split core 10a: First split core 10b: Second split core 12: Teeth part 14: Winding wire 20: Winding device 22: Wire nozzle (winding supply member)
26: Core support member 27: Side guide 29: First core support part 30: Second core support part 32: Core storage space 33: Side guide opening 34: Side guide edge 37a: Traverse guide (guide)

Claims (7)

A split core winding device that continuously winds the winding around at least two split cores having teeth portions around which the winding is wound,
A core that has a first core support part and a second core support part that can support the split core, is rotatable about a rotation axis, and is slidable in a sliding direction that intersects the axial direction of the rotation axis. a support member;
a winding supply member that supplies the winding to the core support member side;
a side guide disposed on one side of the core support member in the sliding direction and defining a core storage space that is open toward the other side in the sliding direction;
The core support member moves the second core support part to the winding position by sliding toward the one side from a first state in which the first core support part is arranged at a winding position including the rotation axis. and a second state in which the first divided core supported by the first core support part is stored in the core storage space,
The side guide covers the first divided core in the second state and prevents the winding on the first divided core when winding the second divided core supported by the second core support. A split core winding device, characterized in that the winding wire is guided to the second split core side while restricting wire interference. The split core winding according to claim 1, wherein an edge of the side guide on the opening side that opens the core storage space to the other side is curved toward the inside of the opening. Device. comprising guides arranged on both sides of the teeth portion of the split core located at the winding position to guide the winding to a predetermined position of the teeth portion;
The split core winding according to claim 1 or 2, wherein the guide is rotatable together with the core support member and movable in the axial direction with respect to the core support member. Device. The guide moves in the axial direction with respect to the core support member according to the winding state of the winding wire so as to leave at least a gap in which the winding wire can be inserted into the predetermined position of the teeth portion. The split core winding device according to claim 3, characterized in that: A split core winding method in which the winding is continuously wound around at least two split cores having teeth portions around which the winding is wound,
a first setting step of setting a first split core in a first core support portion of the core support member;
With the end of the winding supplied from the winding supply member being held toward the core support member, the core support member is rotated about the rotation axis relative to the winding supply member to remove the winding. a first winding step of winding a wire around the teeth of the first split core;
a sliding step of sliding the first split core around which the winding is wound in a direction intersecting the axial direction of the rotating shaft to a position covered by a side guide;
a second setting step of setting a second split core in a second core support portion of the core support member;
a second winding step of rotating the core support member relative to the winding supply member around the rotation axis and winding the winding around the teeth of the second split core; A split core winding method characterized by: Before the first winding step, a guide for guiding the winding wire to a predetermined position on the teeth portion is moved to both sides of the teeth portion of the first split core set on the core support member. a first guide moving step;
Before the second winding step, a second guide moving step of moving the guide to both sides of the teeth portion of the second split core set on the core support member,
In the first winding step, the core supporting member and the guide are rotated about the rotating shaft with respect to the winding supply member, and the guide is rotated relative to the core supporting member in the axial direction of the rotating shaft. and winding the winding around the teeth of the first split core,
In the second winding step, the core support member and the guide are rotated about the rotation axis relative to the winding supply member, and the guide is moved in the axial direction relative to the core support member. The split core winding method according to claim 5, further comprising: winding the winding around the teeth of the second split core. In the first winding step and the second winding step, the guide is moved according to the winding state of the winding wire so as to leave at least a gap in which the winding wire can be inserted at the predetermined position of the teeth portion. The split core winding method according to claim 6, wherein the split core is moved in the axial direction with respect to the core support member.