TWI722253B - Coil deformation device, stator manufacturing device and stator manufacturing method - Google Patents

Abstract

The coil deforming device is provided with: a pair of transfer jigs (32, 32), which respectively have slits (32a, 32b) into which the sides (13a, 14a) of the coil (12) can be inserted; a rotating mechanism (33, 33), It rotates a pair of transfer clamps (32, 32) between the parallel position where the edges (13a, 14a) can be inserted and the inclined position where the depth direction of the slits (32a, 32b) intersect; and the separation/approach mechanism ( 34), which makes a pair of handover clamps (32, 32) separate or close to each other.

Description

Coil deformation device, stator manufacturing device, and stator manufacturing method

The present invention relates to a coil deforming device suitable for the manufacture of a stator in a rotating electric machine such as a three-phase alternator, a stator manufacturing device using the coil deforming device, and a method for manufacturing the stator.

Conventionally, the stator of a rotating electric machine has: a cylindrical stator core with a plurality of teeth (magnetic poles) arranged radially and protruding in the inner diameter direction and a plurality of grooves opened at the intervals; and a stator coil, which The side part is accommodated in the groove to be assembled in the iron core. Regarding the assembly of the stator coil, there is known a method of fabricating the stator coil in advance independently of the stator core, and inserting the sides of the stator coil into the grooves of the stator core.

As a manufacturing method of the stator, for example, there is the one disclosed in JP2007-166850A or JP2011-229285A. In the stator manufacturing methods disclosed in these documents, a cylindrical insertion jig with a group of holding grooves corresponding to the grooves of the stator core is formed on the outer circumference to pair one of the plurality of coils that have been wound in advance. The edges are respectively inserted into the holding groove group, and the coils are arranged along the circumference of the insertion jig. In addition, after inserting the insertion jig into the inner circumference of the stator core and positioning it so that the holding groove is integrated with the corresponding groove of the stator core, the plate-shaped pusher whose width becomes narrower toward the front end is removed from The front end is inserted into the corresponding holding grooves. One of the opposite sides of each coil inserted into the holding groove is pushed out to the outer diameter side, thereby being inserted into the corresponding groove of the stator core.

Here, the pre-made stator coils independently of the stator core can be obtained by winding a wire on the winding core. The coil used in the above method is in the shape of a track, and has a pair of parallel sides inserted into the holding groove, and a coil tail end that connects both ends of the pair of sides into an arc shape.

That is, the pre-made stator coils are so-called neatly wound cylindrical coils that are elongated in the stacking direction. The neatly wounded coils are wound in a rail-shaped coil along the axis direction to accumulate a new orbital shape. In the method of winding, the wire is wound into the winding core in a spiral shape without gaps.

The group of holding grooves formed around the cylindrical insertion jig is formed corresponding to the grooves of the stator core. Therefore, the group of holding grooves is formed in a radial shape from its periphery to the center, and the holding grooves adjacent to each other in the circumferential direction are not parallel to each other.

On the other hand, each side portion of a cylindrical coil having a long axial direction by stacking the rail-shaped winding wires is formed parallel to each other in the winding shaft direction because the wires are layered along the winding shaft direction.

Therefore, in the above-mentioned conventional manufacturing method, the wires are laminated in the direction of the reel. In order to insert the sides formed parallel to each other in the laminated direction into the radial holding grooves, if the sides formed parallel to each other are not made After being deformed so as to be inserted into the holding groove, it cannot be inserted into the holding groove. During this deformation, if the wires of the sides lose their regularity, there is a problem that it is difficult to insert the sides into the holding grooves.

In addition, if the wires on the sides of the coil lose their regularity, it is difficult to increase the lamination factor of the coil. Therefore, there is a problem that it is impossible to achieve high efficiency or downsizing of the generator or motor.

The object of the present invention is to provide a coil deforming device which can deform the wires of the neatly wound coils without losing their neatness.

Another object of the present invention is to provide a stator manufacturing device and a stator manufacturing method, which can deform the wires on each side of the coil to be inserted into the groove without losing the neatness of the wires on each side of the coil.

According to one aspect of the present invention, the coil deforming device includes: a pair of handover jigs each having slits into which opposite sides of the stator coils are parallel to each other; and a rotating mechanism that is mutually in the depth direction of the slits. Between the parallel position and the oblique position that intersects the depth direction of the slit, one or both of a pair of transfer jigs are rotated; and a separation/approach mechanism that separates or separates the pair of transfer jigs from each other or near.

According to another aspect of the present invention, a stator manufacturing apparatus includes: the above-mentioned coil deforming device; a support member that supports the stator core; and a winding machine that winds a wire to produce a stator coil, the stator coil having a groove inserted into the stator core One of the opposite sides parallel to each other; a moving mechanism that moves the coil deforming device between a pair of side portions entering the slit transfer position and a pair of transfer jigs entering the insertion position of the stator core; and a side insertion mechanism , Which pushes out the edge of the slit from the slit, and inserts it into the groove opposite to the slit. The rotation mechanism of the coil deforming device is configured to make the angle between the slits and The angles of the grooves inserted into the pair of edges are the same. The separation/close mechanism of the coil deforming device is configured to make the gap between the openings of the slit and the interval of the grooves inserted into the pair of edges coincide, and the moving mechanism is configured as , At the insertion position, the opening of the slit is opposed to the opening of the groove where the edges are inserted.

Furthermore, according to another aspect of the present invention, a method for manufacturing a stator includes: a coil production step of winding a wire to produce a stator coil having opposite sides parallel to each other; and a handover step of placing a pair of handover jigs on The slits are formed parallel to each other, and a pair of side parts are inserted into the slits in parallel with each other; the coil deformation step is to rotate either or both of a pair of transfer jigs to make the slits Together with the side portion, the angle of the groove of the stator core into which the side portion is inserted is consistent; the clamp separation/approaching step is to make the gap between the opening of the slit and the gap between the grooves for inserting a pair of side portions consistent; Insertion step, which is to insert a pair of transfer jigs into the stator core so that the opening of the slit is opposed to the opening of the groove; and the edge insertion step, which is to insert the edge of the stator coil into the slit It is pushed out from the slit and inserted into the corresponding groove of the stator core.

2.11‧‧‧Stator core

2a、11b‧‧‧Groove

3‧‧‧Insert fixture

3a‧‧‧Keep the groove

4‧‧‧Coil

4a, 4b, 13a, 14a‧‧‧edge

4c, 4d, 13b, 14b‧‧‧Coil end

5. 62‧‧‧Pushing piece

8‧‧‧Wire

9‧‧‧Stator manufacturing device

9a‧‧‧Platform

9b‧‧‧Long hole

10‧‧‧Stator

11a‧‧‧tooth

12‧‧‧Stator coil

13‧‧‧Inner coil

14‧‧‧Outer coil

15‧‧‧Support

16‧‧‧Horizontal substrate

17‧‧‧Roller

18, 56, 66‧‧‧Motor

18a, 32c, 33a‧‧‧Rotation axis

18b‧‧‧Belt

19‧‧‧Fixtures

19a‧‧‧Abutment piece

19b、73‧‧‧Actuator

19c‧‧‧Telescopic pole

20‧‧‧Coiler

21‧‧‧Rotating mechanism

22, 23‧‧‧ coiled column

24‧‧‧Inner core

24a‧‧‧Inner spool

25‧‧‧Outer winding core

25a‧‧‧Outer spool

26‧‧‧Wire release component

27、40‧‧‧Mobile mechanism

31‧‧‧Coil Deformation Device

32‧‧‧Handover Fixture

32a‧‧‧Inner slit

32b‧‧‧Outer slit

32d‧‧‧L-shaped bracket

32e‧‧‧Cut

33‧‧‧Electric Motor

34‧‧‧Separation/Close to Institution

34a, 43a, 44a‧‧‧Servo motor

34b、43b、44b、54、65‧‧‧Ball screw

34c、42c‧‧‧ Follower

34d、42d‧‧‧Shell

35、44c‧‧‧movable table

41‧‧‧Axis moving mechanism

42‧‧‧X-axis telescopic actuator

43‧‧‧Z-axis telescopic actuator

43c‧‧‧Lift platform

43d‧‧‧bar

43e‧‧‧Female thread plate

44‧‧‧Y-axis telescopic actuator

44d、52‧‧‧Guide rail

51‧‧‧Iron core moving mechanism

53‧‧‧Mobile

55‧‧‧Female thread body

61‧‧‧Edge Insertion Mechanism

63‧‧‧Pushing piece moving mechanism

64‧‧‧movable body

70‧‧‧Prevention mechanism

71‧‧‧Shaft member

72‧‧‧Hook member

72a‧‧‧Installation Department

72b‧‧‧covering part

74‧‧‧Mounting plate

C1, C2‧‧‧Middle line

d1, d2, D1, D2, t1, t3‧‧‧interval

F‧‧‧Depth

L1, L2, S1‧‧‧Length

S2‧‧‧Width

T‧‧‧Thickness

t2‧‧‧predetermined interval

α1、α2‧‧‧Angle

Fig. 1 is a plan view showing a stator manufacturing apparatus according to an embodiment of the present invention.

Fig. 2 is a sectional view taken along the line B-B in Fig. 1.

Figure 3 is the arrow view C of Figure 1.

Fig. 4 is a diagram showing a winding machine according to an embodiment of the present invention, and is a cross-sectional view taken along the line A-A in Fig. 1.

Fig. 5 is a perspective view showing a state in which a wire is wound on an inner winding core of a wire winding machine according to an embodiment of the present invention to form an inner coil.

Fig. 6 is a diagram showing a state where the wire is wound to the outer winding core to produce an outer coil, and is a perspective view corresponding to Fig. 5.

Fig. 7 is a diagram showing a state where the side of the coil is inserted into the slit of the transfer jig, and is a perspective view corresponding to Fig. 6.

FIG. 8 is a diagram showing a state in which the transfer jig is rotated and moved to deform the coil, and is a perspective view corresponding to FIG. 7.

Fig. 9 is a diagram showing a state in which the transfer jig is inserted into the stator core together with the deformed coil, and is a diagram corresponding to Fig. 1.

Fig. 10 is a cross-sectional view taken along the line D-D of Fig. 9.

11 is a view showing a state where the opening of the slit and the opening of the groove are opposed to each other, and is a cross-sectional view corresponding to FIG. 10.

Fig. 12 is a cross-sectional view taken along the line E-E of Fig. 11.

FIG. 13 is a diagram showing a state in which the pusher is inserted into the slit, and is a cross-sectional view corresponding to FIG. 12.

Fig. 14 is a cross-sectional view taken along the line F-F of Fig. 13.

Fig. 15 is a view of the iron core in which the sides of the stator coil having inner coils and outer coils are inserted into a plurality of grooves, viewed from the inside.

Fig. 16 is a partial enlarged plan view of a stator in which a stator coil having an inner coil and an outer coil is inserted in the groove.

Fig. 17 is a plan view showing a stator with a plurality of stator coils mounted on the stator core.

Fig. 18 is an exploded perspective view showing the conventional method of inserting the sides of the stator coil into the grooves of the iron core.

Next, an embodiment of the present invention will be described based on the drawings.

Fig. 1 is a diagram showing a stator manufacturing apparatus 9 in this embodiment. Here, as shown in FIG. 1, three axes of X, Y, and Z orthogonal to each other are set. The X-axis is the horizontal direction, the Y-axis is the horizontal front-to-back direction, and the Z-axis is the vertical (vertical) direction. Based on such three shafts, the stator manufacturing apparatus 9 in this embodiment will be described.

The stator manufacturing device 9 is used to manufacture stators used in generators or motors. As shown in FIGS. 16 and 17, the stator 10 is provided with a cylindrical stator core 11 having a plurality of teeth 11a (magnetic poles) arranged radially and protruding in the inner diameter direction and a plurality of grooves opening between them 11b; and the stator coil 12, which is assembled in the stator core 11.

As shown in FIG. 1, the stator manufacturing device 9 for manufacturing such a stator 10 includes a support 15 that supports the stator core 11. The support 15 supports the cylindrical stator core 11 with its central axis O being horizontal (refer to FIG. 10, in FIG. 1, the central axis is the X-axis direction), and the central axis is set as the center of rotation. Can be rotatably supported.

As shown in Figs. 1, 10 to 14, the support 15 includes a horizontal base plate 16 and a plurality of pairs of rollers 17, which are provided on the horizontal base plate 16 with a predetermined interval in the circumferential direction and the axial direction equal to the stator core 11, Place the stator core 11; the motor 18 (refer to Figures 10 to 14), which rotates any roller 17 of the plural pairs to rotate the stator core 11 placed thereon; and the fixing member 19 (refer to Figure 12) And Figure 13), which clamps the stator core 11 from both sides of the axial direction to prohibit the rotation of the stator core 11.

As shown in FIGS. 10 to 14, the motor 18 is provided on the horizontal base plate 16, and its rotating shaft 18 a is connected to any one of the rollers 17 by a belt 18 b. When the motor 18 drives and the roller 17 rotates, the stator core 11 mounted thereon rotates.

As shown in FIGS. 12 and 13, the fixing member 19 includes: a contact piece 19a, which is provided on the horizontal base plate 16 and abuts on one end surface of the stator core 11 in the axial direction; and an actuator 19b, which faces The other end surface of the stator core 11 in the axial direction is provided on the horizontal base plate 16. The extension rod 19c of the actuator 19b protrudes, and the extension rod 19c and the contact piece 19a clamp the stator core 11 from both sides in the axial direction, so that the rotation of the stator core 11 is prohibited.

As shown in FIG. 1, the stator manufacturing apparatus 9 is equipped with the winding machine 20 which winds the wire 8 to produce the stator coil 12 (FIG. 15-17). The winding machine 20 of the present embodiment is suitable for producing stator coils 12 that are effective when, as shown in FIG. 15, the parallel sides 13a and 14a are inserted into two stator cores 11, respectively. Groove 11b.

Although the stator coil 12 forms one winding layer, it is the one in which the side portions 13a and 14a are inserted into the adjacent two grooves 11b, respectively. That is, the winding machine 20 is configured to produce a stator coil 12 consisting of a cylindrical inner coil 13 long in the axial direction (FIG. 5); and a predetermined interval t2 (FIG. 6) from the outside to surround the inner coil. The coil 13 is constituted by the coil 14 (FIG. 6).

The wire 8 is a covered wire and is a so-called round wire with a circular cross section. Furthermore, the wire 8 may also be a so-called square wire having a square cross-section. In addition, although the wire winding machine 20 is described as the one that winds a single wire 8, it may be one that winds a plurality of wires 8 in a parallel state.

As shown in FIG. 4, the winding machine 20 has: an inner winding core 24, which is rotated by a rotating mechanism 21, for obtaining a track-shaped inner coil 13 (FIG. 5) from the wound wire 8 (FIG. 5); and an outer winding The core 25 can be configured to surround the inner winding core 24 and rotate together with the inner winding core 24 to obtain a track-shaped outer coil 14 from the wound wire 8 (FIG. 6 ).

The inner winding core 24 has inner winding shafts 24a which are respectively mounted on the outside of the rotation radius of the front ends of a pair of winding posts 22 and 23 rotated by the rotation mechanism 21. As shown in FIG. The rotating mechanism 21 is configured such that, as shown in FIG. 5, around a vertical axis C located at the center of a pair of coiled columns 22, 23 extending in a vertical direction in a state of being parallel to each other, a pair of coiled columns 22, 23 rotate in parallel with each other. The inner winding shafts 24a of the coiled wire 8 are respectively installed on the lower part of one of the coiling poles 22 and the other of the coiling poles 23 on the outer side of the radius of rotation.

As shown in FIG. 5, the outer surface of the inner spool 24a of the coiled wire 8 is formed to bulge toward the outside of the rotation radius, so that the coiled wire 8 is gently folded to form a substantially arc shape. Therefore, when one of the coiled post 22 and the other coiled post 23 is rotated together with the inner core 24 to wind the wire 8 around the inner coiled core 24, it is coiled between one of the coiled post 22 and the other coiled post 23. The wire 8 bent into an arc shape by the inner bobbin 24a forms a coil tail end 13b. In addition, the wire 8 hung between one of the coiled posts 22 and the other of the coiled posts 23 forms a side portion 13a. In this way, the track-shaped inner coil 13 is formed.

On the other hand, the outer winding core 25 for obtaining the track-shaped outer coil 14 (FIG. 6) has an outer winding spool 25 a configured to cover the inner winding spool 24 a at a predetermined interval t2. As shown in FIG. 4, in this embodiment, the outer winding core 25 is movably installed on a pair of winding columns 22 and 23. As shown in FIG. As shown in FIG. 6, the outer reel 25a is in a lowered state, and is at a winding position where the inner reel 24a in the inner reel core 24 is covered by the outer side of the spin radius. As shown in Figs. 4 and 5, the outer reel 25a is in a standby position where the outer side of the rotation radius of the inner reel 24a is opened when the outer reel 25a is raised. The outer spool 25a is configured to be able to reciprocate between the winding position and the standby position.

As shown in FIGS. 5 and 6, the outer spool 25a is curved and formed so that its inner surface covers the wire 8 wound around the inner spool 24a. In addition, the coiled outer surface of the wire 8 of the outer spool 25a is formed so as to bulge toward the outside of the radius of rotation, so that the coiled wire 8 is gently folded to form a substantially arc shape.

Therefore, as shown in FIG. 6, when the wire 8 is wound to each of the outer spools 25a at the winding position, the wire 8 that is wound around the outer spool 25a and bent into an arc shape forms a coil tail 14b. In addition, the wire 8 hung between one of the coiled poles 22 and the other coiled pole 23 forms a side portion 14a. In this way, the track-shaped outer coil 14 is formed.

In this way, the winding machine 20 is configured to produce a stator coil 12 composed of a cylindrical inner coil 13 having a rail shape in plan view; and a predetermined interval t2 from the outside to surround the inner coil 13 and the outer coil 14.

Here, the predetermined interval t2 is set as shown in FIG. 10: one of the sides 13a of the inner coil 13 and one of the sides 14a of the outer coil 14 are inserted into the groove 11b adjacent to the stator core 11 The interval t1 in the circumferential direction is the same.

In addition, what is indicated by the reference numeral 26 in FIG. 4 is a wire discharge member 26 that discharges the inserted wire 8. The reference numeral 27 in FIG. 4 is a moving mechanism 27 that is provided on the stage 9a of the stator manufacturing device 9 and moves the wire feeding member 26 in the three-axis direction.

As shown in FIG. 1, the stator manufacturing device 9 includes a coil deforming device 31 that deforms the stator coil 12 produced by the winding machine 20.

As shown in FIGS. 1 to 3, the coil deforming device 31 includes: a pair of transfer jigs 32, 32, which are respectively formed with slits 32a, 32b; and a rotating mechanism 33 that makes any of the pair of transfer jigs 32, 32 One or both of them rotate around a rotating shaft 32c parallel to the longitudinal direction of the slits 32a, 32b; and the separation/close mechanism 34 separates and/or approaches the pair of transfer clamps 32, 32 to each other. 3, the longitudinal direction of the slits 32a, 32b corresponds to the X-axis direction, the width direction of the slits 32a, 32b described later corresponds to the Y-axis direction, and the depth direction of the slits 32a, 32b corresponds to the Z-axis direction .

As shown in Figures 3 and 6, in the present embodiment in which the stator coil 12 composed of the inner coil 13 and the outer coil 14 is produced on the winding machine 20, the inner coil 13 is formed on a pair of transfer jigs 32 and 32, respectively. The inner slit 32a into which the side portions 13a and 13a are inserted, and the outer slit 32b into which the side portions 14a and 14a of the outer coil 14 are inserted.

The slits 32a, 32b formed in the pair of handover jigs 32, 32 are formed into the width and depth at which the opposite sides 13a, 14a of the stator coil 12 produced by the winding machine 20 are parallel to each other.

Specifically, as shown in FIG. 6, the transfer jig 32 is a square plate. The transfer jig 32 has a length L2 that can enter the space of the length L1 provided between one of the inner spool 24a and the outer spool 25a and the other inner spool 24a and the outer spool 25a. In addition, the transfer jig 32 has a thickness T exceeding the predetermined interval t2 between the side portions 13a and 14a of the stator coils 13 and 14. In addition, the transfer jig 32 has a width S2 that exceeds the axial length S1 of the coils 13 and 14. In addition, the interval t3 between the inner slit 32a and the outer slit 32b coincides with the predetermined interval t2 between the side portion 13a of the inner coil 13 and the side portion 14a of the outer coil 14. The inner slit 32a and the outer slit 32b are arranged side by side in the width direction from one side to the other side in the width direction, and are formed parallel to each other. The depth F of the inner slit 32a and the outer slit 32b is formed to exceed the axial length S1 of each coil 13 and 14.

As shown in FIGS. 1 to 3, the rotating mechanism in the coil deforming device 31 is a pair of electric motors 33 and 33. On the outer side of the pair of transfer jigs 32, 32, a rotating shaft 32c parallel to the longitudinal direction of the slits 32a, 32b is provided through an L-shaped bracket 32d, respectively. The rotating shaft 32c is provided coaxially with the rotating shafts 33a of the pair of electric motors 33 and 33, respectively. The pair of electric motors 33 are provided corresponding to the pair of transfer jigs 32, 32, and are configured to rotate both of the pair of transfer jigs 32, 32 about the rotation shaft 32c.

The separation/approaching mechanism is a pair of electric motors 33, 33 that are a rotating mechanism to separate from each other and/or to approach a pair of actuators 34, 34. The actuators 34 and 34 are respectively provided with a ball screw 34b driven by the servo motor 34a to rotate, and a follower 34c screwed to the ball screw 34b to move in parallel.

The pair of actuators 34 and 34 are arranged on the movable table 35 such that their housings 34d are continuous in the Y-axis direction. The electric motors 33 are respectively provided in the followers 34c so that their rotating shafts 33a become parallel to the X-axis direction. The pair of actuators 34, 34 are configured to separate/close a pair of transfer jigs 32, 32 provided on the rotating shaft 33a by separating/close the pair of electric motors 33, 33.

The stator manufacturing device 9 includes a moving mechanism 40 that moves the coil deforming device 31 between the delivery position and the insertion position. Here, the so-called handover position refers to the narrowing of one of the opposite sides 13a, 14a of the stator coil 12 obtained by the winding machine 20 into the pair of handover jigs 32, 32 of the coil deforming device 31, as shown in FIG. The position within the slits 32a, 32b. The insertion position refers to the position where a pair of transfer jigs 32 and 32 enter the stator core 11 as shown in FIG. 9 and FIG. 10.

As shown in FIG. 1, the moving mechanism 40 includes: a three-axis moving mechanism 41 that moves the coil deforming device 31 in the three-axis direction; and an iron core moving mechanism 51 that makes the support 15 supporting the stator iron core 11 and the stator iron core 11 together Move along its axis.

As shown in FIGS. 1 to 3, the three-axis moving mechanism 41 includes: an X-axis direction telescopic actuator 42 that moves the movable table 35 in the X-axis direction; and a Z-axis direction telescopic actuator 43 that moves the X-axis direction The telescopic actuator 42 moves in the Z-axis direction together with the coil deforming device 31; and the Y-axis direction telescopic actuator 44 that moves the Z-axis direction telescopic actuator 43 in the Y-axis direction.

The Y-axis direction telescopic actuator 44 includes: a pair of guide rails 44d, which are provided on the platform 9a so as to extend in the Y-axis direction; a movable table 44c, which is movably mounted on the guide rail 44d; and a ball screw 44b, which is screwed to the movable The table 44c is provided along the guide rail 44d; and the servo motor 44a, which rotates the ball screw 44b.

The Z-axis direction telescopic actuator 43 is provided with a plurality of rods 43d, which are inserted into the movable table 44c so as to move up and down, and extend in the Z-axis direction; a lifting table 43c which is mounted on the upper end of the rod 43d; and a female threaded plate 43e , Which is installed at the lower end of the rod 43d; the ball screw 43b, which is screwed to the female threaded plate 43e, and is arranged parallel to the rod 43d; and the servo motor 43a, which is arranged on the movable table 33c, rotates the ball screw 43b.

The symbol 9b is an elongated hole 9b formed on the platform 9a to extend in the Y-axis direction, and to allow the rod 43d to pass through and allow the rod 43d to move in the Y-axis direction.

The X-axis direction expansion and contraction actuator 42 has the same structure as the actuator 34 in the separation/approach mechanism that moves the electric motor 33 as the rotation mechanism. The X-axis direction telescopic actuator 42 is such that the follower 42c can move in the X-axis direction, and its housing 42d extends in the X-axis direction, and is mounted on the lifting platform 43c of the Z-axis direction telescopic actuator 43.

The 3-axis moving mechanism 41 moves the coil deforming device 31, so that as shown in FIG. 7, one of the opposite sides 13a, 14a of the stator coil 12 obtained by the winding machine 20 enters a pair of the coil deforming device 31 to the transfer jig 32 , 32 in the slits 32a, 32b. In this way, the three-axis moving mechanism 41 is configured to be able to guide the coil deforming device 31 to the delivery position.

The core moving mechanism 51 is shown in FIGS. 1, 10 to 14 and includes a guide rail 52, which is provided on the platform 9a extending in the axial direction (X-axis direction) of the stator core 11, and can extend along the longitudinal direction (X-axis direction). ) The horizontal base plate 16 is movably mounted; the moving body 53 is arranged on the horizontal base plate 16 and moves along the guide rail 52; the ball screw 54 is arranged parallel to the guide rail 52; the female screw body 55 is arranged on the horizontal base plate 16, and Screwed to the ball screw 54; and a motor 56 which rotates the ball screw 54 so that the horizontal base plate 16 and the stator core 11 move along the guide rail 52 together.

The core moving mechanism 51 is configured to move the stator core 11 to a pair of transfer jigs 32, 32 to enter the stator core in cooperation with the 3-axis moving mechanism 41 that moves the coil deforming device 31, as shown in FIGS. 9 and 10 Insert position of 11.

The coil deforming device 31 is provided with a prevention mechanism 70 which prevents the side portions 13a and 14a accommodated in the slits 32a and 32b from escaping from the slits 32a and 32b.

As shown in FIG. 2, the prevention mechanism 70 includes: a shaft member 71, which is provided on the outer surface of the pair of transfer jigs 32 in parallel with the rotating shaft 32c of the pair of transfer jigs 32; and a plurality of hook members 72 (only shown in the figure In the case of three pieces on one side), they are provided on the shaft member 71; and an actuator 73 that rotates the shaft member 71 together with the plurality of hook members 72.

The actuator 73 is a motor, and is mounted on the mounting plate 74, and the mounting plate 74 is provided on the rotating shaft 33a of the electric motor 33 which is a rotating mechanism. On the transfer jig 32 provided with the hook member 72, a slit 32e is formed on the entrance side of the slits 32a and 32b.

As shown in FIG. 6, the hook member 72 is an L-shaped flat plate. On the hook member 72, a mounting portion 72a and a covering portion 72b are formed. The attachment portion 72a is attached to the shaft member 71.

As shown in FIGS. 7 and 10, the covering portion 72b enters the slit 32e by the rotation of the shaft member 71, and crosses the entrance side of the slits 32a and 32b. Thereby, the covering part 72b prevents the side parts 13a, 14a accommodated in the slits 32a, 32b from falling out of the slits 32a, 32b.

The rotating mechanism 33 and the separating/approaching mechanism 34 in the coil deforming device 31 rotate and separate/approach one of the pair of transfer jigs 32, 32 of the side portions 13a, 14a in the slits 32a, 32b so as not to be detached. Thereby, a pair of transfer jigs 32 and 32 can be set as the inclined position where the depth direction of the slit 32a, 32b crossed as shown in FIG. In this way, the coil deforming device 31 is configured to deform the stator coil 12 having the side portions 13a and 14a.

When the stator coil 12 is deformed, the rotating mechanisms 33, 33 (FIG. 1) of the coil deforming device 31 are configured, as shown in FIG. The angle α1 coincides with the angle α2 of the groove 11b into which the pair of side portions 13a, 14a are inserted. The separation/close mechanism 34 (FIG. 1) of the coil deforming device 31 is configured to make the gaps d1, d2 between the openings of the slits 32a, 32b in the pair of transfer jigs 32 and the pair of side portions 13a, 14a inserted The intervals D1 and D2 between the grooves 11b are the same.

In this embodiment, as described above, the winding machine 20 manufactures the stator coil 12 composed of the inner coil 13 and the outer coil 14. The angle α1 of the slits 32a and 32b refers to the inclination angle of the slits 32a and 32b with respect to the line (reference line B) extending in the Z-axis direction (vertical direction) in each of the pair of transfer jigs 32. In this embodiment, as shown in FIG. 10, the angle between the reference line B and a line (middle line C1) that passes through the center of the slits 32a and 32b in the width direction and extends in the depth direction is shown as an angle α. In addition, the angle α2 of the groove 11b into which the side portions 13a and 14a are inserted refers to the reference line B and the center line between the two adjacent grooves 11b of the stator core 11 inserted through the side portions 13a and 14a. (Middle line C2) between the angles. In more detail, the center line C2 of the groove 11b passes through the circumferential width center (width center) of the tooth 11a between the two adjacent grooves 11b into which the sides 13a, 14a of the stator coil 12 are inserted, and and The line where the central axis O of the stator core 11 intersects.

In addition, in this embodiment, the gap d1 between the openings of the slits 32a is defined as the width center of the opening of the slit 32a in one of the handover jigs 32, and the opening of the slit 32a of the other handover jig 32 The width of the center is shown by the horizontal interval. Similarly, the interval d2 between the openings of the slits 32b refers to the horizontal interval between the width centers of the openings of the slits 32b in the pair of transfer jigs 32. In addition, the interval D1 between the grooves 11b is shown as the interval in the horizontal direction of the width center of the two grooves 11b into which the side portion 13a is inserted along the circumferential direction of the opening. Similarly, the interval D2 between the grooves 11b is shown as the interval in the horizontal direction of the width center of the two grooves 11b into which the side portion 14a is inserted along the circumferential direction of the opening. In this embodiment, as described above, the angle α1 of the slit 32a, the interval d1, d2, the angle α2 of the groove 11b, and the interval D1, D2 are described. However, the technical scope of the present invention is not limited to this Wait.

The moving mechanism 40 that moves the coil deforming device 31 is configured to further move the pair of transfer jigs 32 and 32 to enter the insertion position of the stator core 11. As shown in FIG. 11, the openings of the slits 32a and 32b are connected to the supply The openings of the groove 11b into which the pair of side portions 13a and 14a are inserted face each other.

In addition, as shown in FIGS. 1 and 13, the stator manufacturing apparatus 9 includes a side insertion mechanism 61 that narrows the sides 13a, 14a of the stator coil 12 inserted into the slits 32a, 32b. The slits 32a and 32b are pushed out so as to be inserted into the groove 11b of the stator core 11 facing the slits 32a and 32b.

The side insertion mechanism 61 is provided with a plate-shaped pusher 62 which is arranged corresponding to the slits 32a and 32b of the handover jig at the insertion position, and the width becomes narrower toward the front end; and a pusher moving mechanism 63, which The structure is such that the pusher 62 is inserted into the corresponding slits 32a, 32b from the front end, and the sides 13a, 14a of the stator coil 12 inserted into the slits 32a, 32b are pushed out from the slits 32a, 32b to They are respectively inserted into the corresponding grooves 11b.

Specifically, the pusher moving mechanism 63 includes: a movable body 64 that is movably mounted on the guide rail 52 in the core movement mechanism 51; and a ball screw 65 that is screwed to the movable body 64 and is arranged parallel to the guide rail 52; And a motor 66 that rotates the ball screw 65 to move the movable body 64.

As shown in FIG. 13, on the movable body 64, the base end of the pushing member 62 is provided. The pusher moving mechanism 63 is configured such that by bringing the movable body 64 close to the horizontal base plate 16, the pusher 62 can be inserted from the narrow front end into the narrowing of the transfer jigs 32, 32 inserted into the stator core 11 of the horizontal base plate 16. Inside the slits 32a, 32b.

The pusher 62 is formed so that the width becomes narrower toward the front end, and as shown in FIG. 14, when inserted into the slits 32a, 32b, the sides 13a, 14a of the stator coil 12 are pushed out from the slits 32a, 32b. . In this way, the pusher 62 is configured to insert the side portions 13a, 14a into the groove 11b of the stator core 11 opposed to the slits 32a, 32b.

Next, the manufacturing method of the stator of this embodiment is demonstrated.

The method of manufacturing the stator of this embodiment includes: a coil production step of winding a wire 8 to produce a stator coil 12 having opposite sides 13a, 14a parallel to each other; and a handover step of making a pair of handover jigs 32, The slits 32a, 32b formed on the 32 are parallel to each other, and a pair of side portions 13a, 14a are inserted into the slits 32a, 32b in parallel to each other; the coil deformation step is to make a pair of handover clamps 32, 32 Either or both of them are rotated around the axis of rotation parallel to the longitudinal direction of the slits 32a, 32b, so that the slits 32a, 32b and the side portions 13a, 14a are aligned together for insertion of the side portions 13a, 14a The groove 11b of the stator core 11; the clamp separation/approaching step, which is to make the gap between the openings of the slits 32a, 32b consistent with the gap between the grooves for inserting a pair of side portions 13a, 14a; the clamp insertion step, which A pair of handover jigs 32, 32 are inserted into the stator core 11 so that the openings of the slits 32a, 32b are opposed to the openings of the groove 11b; and the edge insertion step, which will be inserted into the slits 32a, The side portions 13a, 14a of the stator coil 12 of 32b are pushed out from the slits 32a, 32b, and inserted into the corresponding groove 11b of the stator core 11.

In the stator manufacturing method of this embodiment, the above-mentioned stator manufacturing apparatus 9 is used, and the operation in the stator manufacturing apparatus 9 is automatically controlled by a controller (not shown).

The steps are described in detail below.

<Coil production steps>

In the coil production step, the wire 8 is wound to produce the stator coil 12 having opposite sides 13a, 14a parallel to each other.

In this embodiment, the winding machine 20 produces a stator coil 12 composed of an inner coil 13 and an outer coil 14 surrounding the inner coil 13 from the outside, as shown in FIG. 6. Therefore, the coil production step includes an inner winding step of producing the inner coil 13 and an outer winding step of the outer coil 14 to produce the stator coil 12 composed of the inner coil 13 and the outer coil 14.

Specifically, in the inner winding step, as shown in FIG. 5, the inner winding core 24 is rotated by the rotating mechanism 21 (FIG. 4) to wind the wire 8 discharged from the wire feeding member 26 to the inner winding core 24 The inner coil 13 is made around it. Together with the rotation of the inner winding core 24, the wire feeding member 26 is moved toward the rotation axis of the inner winding core 24 so that the wire 8 fed from the wire feeding member 26 is spirally wound to the inner winding core 24 neatly.

In this way, in the inner winding step, a track-shaped inner coil 13 is produced, and the track-shaped inner coil 13 has: a coil end portion 13b, which is composed of a wire 8 coiled on the inner winding shaft 24a; and a side portion 13a, It is composed of a wire 8 hung between a pair of coiled poles 22 and 23.

Next, the inner coil 13 and the inner winding core 24 are surrounded by the outer winding core 25. In the present embodiment, a winding machine 20 configured such that the outer winding core 25 is movable is used. Therefore, in this embodiment, the outer winding core 25 is moved downward from the standby position shown in FIG. 4, and as shown in FIG. 6, it is moved to the surrounding position surrounding the inner coil 13. As shown in FIG. In this way, the coil end portion 13b of the inner coil 13 is covered by the outer winding shaft 25a, and then the outer winding step is performed.

In the outer winding step, the outer winding core 25 and the inner winding core 24 are rotated together to wind the wire 8 discharged from the wire feeding member 26 around the outer winding core 25 to produce the outer coil 14. The 3-axis moving mechanism 27 The wire feeding member 26 is moved in the direction of the rotation axis of the outer winding core 25 together with the rotation of the outer winding core 25 so that the wire 8 fed from the wire feeding member 26 is spirally wound to the outer winding core 24 neatly.

In this way, as shown in FIG. 6, in the winding step, a track-shaped outer coil 14 is produced. The track-shaped outer coil 14 has a coil tail portion 14b, which is composed of a wire 8 wound on an outer winding spool 25a And the side 14a, which is made up of a wire 8 hung between a pair of coiled posts 22 and 23.

Here, the outer winding spool 25a in the outer winding core 25 is configured to cover the coil end portion 13b of the inner coil 13 from the outside, so the outer coil 14 is formed from the wire 8 wound around the outer winding spool 25a. Encloses the size of the inner coil 13. The distance t2 between the sides 13a, 14a of the inner coil 13 and the outer coil 14 is the distance t1 in the circumferential direction of the groove 11b adjacent to the stator core 11 where the sides 13a, 14a will be inserted later (Figure 10) Consistent.

<Handover Steps>

In this step, the slits 32a, 32b formed on the pair of transfer jigs 32, 32 are made parallel, and the pair of side portions 13a, 14a are inserted into the slits 32a, 32b in a state of being parallel to each other.

In this embodiment, in the rotating mechanism 33 in the coil deforming device 31, as shown in FIG. 6, a pair of transfer jigs 32, 32 are made parallel to each other, and a separation/close mechanism 34 is used to make a pair of transfer jigs 32, 32, The interval between 32 and the interval between the sides 13a and 14a of the stator coil 12 are the same.

Subsequently, the coil deforming device 31 is moved by the 3-axis moving mechanism 41 of the moving mechanism 40, so that as shown in FIG. 7, the pair of side portions 13a, 14a are inserted into the pair of transfer jigs 32, 32 in a state parallel to each other. In the slits 32a and 32b respectively formed on the upper side.

In this embodiment, in the winding step, the stator coil 12 composed of the inner coil 13 and the outer coil 14 is obtained. Therefore, in the handover step, a pair of handover jigs 32, 32b, which are respectively formed with an inner slit 32a for inserting the side portion 13a of the inner coil 13 and an outer slit 32b for inserting the side portion 14a of the outer coil 14 are used. 32. The side portion 13a of the inner coil 13 and the side portion 14a of the outer coil 14 are inserted into the inner slit 32a and the outer slit 32b in a state of being parallel to each other.

Furthermore, the coil deforming device 31 is equipped with the prevention mechanism 70 which prevents the side parts 13a, 14a accommodated in the slits 32a, 32b from escaping from the slits 32a, 32b. Therefore, after the pair of side portions 13a, 14a are inserted into the slits 32a, 32b of the pair of transfer jigs 32, 32 in a state of being parallel to each other, the actuator 73 (FIG. 2) of the preventing mechanism 70 is used to make the shaft The member 71 rotates together with the hook member 72, and as shown in FIG. 7, the covering portion 72b of the hook member 72 enters the cutout 32e. Thereby, the covering part 72b crosses the entrance side of the slit 32a, 32b (FIG. 10).

In this way, the covering portion 72b prevents the side portions 13a, 14a accommodated in the slits 32a, 32b from falling out of the slits 32a, 32b.

In this state, the three-axis moving mechanism 41 of the moving mechanism 40 further moves the coil deforming device 31 together with the stator coil 12 inserted into the side portions 13a and 14a, so that the stator coil 12 is moved from the inner winding core 24 and the outer winding core 25 Break away.

Hereinafter, the flow of separating the inner coil 13 and the outer coil 14 from the inner winding core 24 and the outer winding core 25 will be specifically described. First, a pair of side portions 13a, 14a are inserted into the slits 32a, 32b to maintain these shapes. Next, the new wire 8 is prohibited from being discharged from the wire discharging member 26, and the wire 8 extending from the wire discharging member 26 to the outer coil 14 is cut by a cutting device or the like not shown. In this way, the stator coil 12 is made independent of the wire feeding member 26. Then, the inner coil 13 and the outer coil 14 whose shapes are maintained are moved downward together with the pair of transfer jigs 32 and 32 to be drawn downward from the open lower end surfaces of the pair of coiled posts 22 and 23.

Then, by the moving mechanism 40, as shown in FIG. 1, the coil deforming device 31 is separated from the winding machine 20 together with the stator coil 12.

<Coil Deformation Step>

In this step, either or both of the pair of transfer jigs 32 and 32 are rotated around the rotating shaft 32c parallel to the longitudinal direction of the slits 32a and 32b. In addition, the slits 32a, 32b, together with the side portions 13a, 14a inserted therein, coincide with the angle α2 of the groove 11b of the stator core 11 into which the side portions 13a, 14a are inserted.

In this embodiment, the pair of electric motors 33 and 33 in the coil deforming device 31 are respectively driven as one of the rotating mechanisms, so that as shown in FIG. 8, the pair of transfer clamps 32 and 32 are separated from the slits 32a and 32b. The axis of rotation parallel to the length direction is centered, and it rotates as shown by the solid arrow. Thereby, the pair of transfer jigs 32, 32 are changed to the intersection position where the slits 32a, 32b intersect in the depth direction together with the side portions 13a, 14a inserted into the slits 32a, 32b.

In this way, as shown in FIG. 10, the angle α1 of the slits 32a, 32b, together with the side portions 13a, 14a, is made to coincide with the angle α2 of the groove 11b into which the stator core 11 is to be inserted. In this way, the stacking direction of the side portions 13a, 14a inserted into the slits 32a, 32b is aligned with the inclination direction of the groove 11b corresponding to the angle α2 of the groove 11b.

<Jig separation/approaching step>

In this step, as shown in FIG. 10, the gaps d1, d2 between the openings of the slits 32a, 32b in the pair of handover jigs 32, 32 are set to be the same as the pair of edges inserted into the slits 32a, 32b. The intervals D1 and D2 of the grooves 11b to be inserted into 13a and 14a are the same.

In this embodiment, an L-shaped bracket 32d in a pair of transfer jigs 32, 32 is provided in the depth direction of the slits 32a, 32b. Therefore, by the separation/close mechanism 34 of the coil deforming device 31, the distance between the pair of electric motors 33 provided with a pair of transfer jigs 32 and 32 is brought close, so that the pair of transfer jigs 32 are formed as shown by the dashed arrow in FIG. , 32 are close to each other. Thus, as shown in FIG. 10, the gaps d1, d2 between the openings of the slits 32a, 32b are changed to be the same as those of the groove 11b into which the pair of side portions 13a, 14a inserted into the slits 32a, 32b are to be inserted. The intervals D1 and D2 are the same.

Furthermore, the step of separating/close the clamp is preferably performed simultaneously with the step of deforming the coil.

Through the coil deformation step and the clamp separation/close step, the stator coil 12 is shown in FIG. 10, and the side portions 13a, 14a of the stator coil 12 have different intervals in the winding direction (a figure eight in the figure). However, since the sides 13a and 14a of the coil 12 are inserted into the slits 32a and 32b, respectively, as shown in FIG. 8, the coil tail ends 13b and 14b are mainly deformed, respectively. Therefore, by using the coil deforming device 31, when the stator coil 12 is deformed, the orderliness of the wires 8 of the sides 13a, 14a can be prevented from being damaged.

<Fixture Insertion Step>

In this step, a pair of transfer jigs 32 and 32 are inserted into the stator core 11, and as shown in FIG. 11, the openings of the slits 32a and 32b are opposed to the openings of the groove 11b.

Specifically, the jig insertion step is performed by the moving mechanism 40 in the stator manufacturing device 9. With the 3-axis moving mechanism 41 and the core moving mechanism 51, either or both of the coil deforming device 31 and the stator core 11 are moved, so that as shown in FIGS. 9 and 10, a pair of transfer jigs 32, 32 Enter the stator core 11 mounted on the horizontal base plate 16.

When such a pair of transfer jigs 32, 32 enter the insertion position in the stator core 11, the 3-axis moving mechanism 41 further moves the coil deforming device 31, so that as shown in FIG. 11, the openings of the slits 32a, 32b are aligned with one another. The openings of the grooves 11b into which the side portions 13a and 14a are to be inserted are opposed to each other.

Subsequently, the actuator 73 in the prevention mechanism 70 is driven to rotate the shaft member 71. Thereby, the covering portion 72b in the hook member 72 is detached from the cut 32e to open the entrance side of the slits 32a and 32b.

<Edge Insertion Step>

In this step, the sides 13a and 14a of the stator coil 12 inserted into the slits 32a and 32b are pushed out from the slits 32a and 32b to be inserted into the corresponding groove 11b of the stator core 11.

The edge insertion step is performed by the edge insertion mechanism 61. Specifically, as shown in FIG. 12, by bringing the movable body 64 close to the horizontal base plate 16, the pusher 62 is inserted from the front end into the slit 32a of the transfer jig 32 inserted into the stator core 11 mounted on the horizontal base plate 16. , Within 32b. In this way, a plate-shaped pusher 62 that is arranged corresponding to the slits 32a, 32b of the handover jig 32 at the insertion position and whose width becomes narrower toward the front end is inserted into the corresponding slits 32a, 32b from the front end. Furthermore, as shown in Fig. 13, the side portions 13a, 14a of the stator coil 11 inserted into the slits 32a, 32b are pushed out from the slits 32a, 32b, and are respectively inserted into the corresponding grooves 11b.

Here, in order to facilitate the understanding of this embodiment, a comparative example of the present invention will be described with reference to FIG. 18.

In the method of manufacturing the stator of the comparative example, as shown in FIG. 18, a cylindrical insertion jig 3 in which a group of holding grooves 3 a corresponding to the groove 2 a of the stator core 2 is formed on the outer periphery is used. Specifically, in the comparative example, one of the opposite side portions 4a, 4b of a plurality of coils 4 wound in advance is inserted into the group of holding grooves 3a, and the coils 4 are arranged along the circumference of the insertion jig 3. Then, the insertion jig 3 is inserted into the inner circumference of the stator core 2 and positioned so that the holding groove 3 a and the corresponding groove 2 a of the stator core 2 are integrated. Subsequently, the plate-shaped pusher 5 whose width becomes narrower toward the front end is inserted from the front end into the corresponding holding groove 3a, and inserted into one of the opposite sides 4a, 4a, and each of the coils 4 in the holding groove 3a. 4b is pushed out to the outer diameter side to be inserted into the corresponding groove 2a of the stator core 2.

Here, the stator coil 4 manufactured in advance independently of the stator core 2 can be obtained by winding a wire around the winding core. The stator coil 4 of the comparative example is in the shape of a track. It has a pair of parallel sides 4a, 4b, which are inserted into the holding groove 3a, and coil tail ends 4c, 4d, which divide the pair of sides. The two ends of 4a and 4b are connected in an arc shape.

That is, the pre-made stator coil 4 is so-called neatly wound, and the cylindrical coil becomes longer in the stacking direction, and this neatly wound is to pile up new ones in the axial direction on the winding wire wound in the shape of a track. The rail-shaped winding method is to wind the wire into the winding core in a spiral shape without gaps.

As shown in Fig. 18, the group of holding grooves 3a formed around the cylindrical insertion jig 3 is formed to correspond to the grooves 2a of the stator core 2 and are formed radially from the periphery to the center. That is, the holding grooves 3a adjacent to each other in the circumferential direction are not parallel to each other.

On the other hand, the side parts 4a, 4b of the cylindrical coil 4 which is long in the axial direction are formed by stacking the rail-shaped winding wire, and the wire material is laminated|stacked along the winding axis direction. Thereby, the sides 4a, 4b are parallel to each other in the direction of the reel.

In this way, in the method of manufacturing the stator of the comparative example, the wires are layered in the winding axis direction, and the sides 4a, 4b formed in parallel to each other in the layering direction are inserted into the radial holding grooves 3a. Therefore, unless the sides 4a, 4b formed in parallel with each other are deformed so as to be inserted into the holding groove 3a, it cannot be inserted into the holding groove 3a. When deforming, if the wires of the sides 4a, 4b lose their regularity, it will be difficult to insert them into the holding groove 3a.

If the wires of the sides 4a and 4b in the coil 4 lose their regularity, it will be difficult to increase the layering factor of the winding, and it will be impossible to achieve high efficiency or miniaturization of generators or motors.

In addition, as shown in FIG. 16, in order to increase the layering factor of the winding, it is also possible to insert the sides 13a, 14a of the stator coil 12 forming one winding layer into a plurality of grooves 11b (in the figure) In the case of 2 grooves 11b).

That is, it is conceivable that when the side portions 13a, 14a on both sides of the stator coil 12 are respectively accommodated in a plurality of grooves 11b, the stator coil 12 can be obtained as in the above-mentioned embodiment. The side portions 13a on both sides are accommodated in the inner coil 13 in the groove 11b separated by a predetermined interval, and the side portion 14a is accommodated in the groove 11b adjacent to the outer side of the groove 11b in which the inner coil 13 is accommodated. constitute.

However, in the stator manufacturing method of the comparative example, since the sides 13a and 14a of the stator coil 12 constituted by the inner coil 13 and the outer coil 14 are parallel to each other, it is difficult to secure the sides of the inner coil 13 and the outer coil 14 at the same time. The portions 13a, 14a are parallel, and one side deforms the side portions 13a, 14a on both sides so as to be inserted into the radial grooves 11b. Moreover, it is even more difficult to insert the side portions 13a and 14a into the groove 11b while ensuring the orderliness.

On the other hand, in this embodiment, as shown in FIG. 14, the side portions 13a, 14a pushed out from the slits 32a, 32b and inserted into the corresponding groove 11b maintain the wire 8 inserted into the slits 32a, 32b. The state moves while directly inserting into the groove 11b. Therefore, as long as the wire 8 in the side portions 13a, 14a is neatly wound, the wire 8 can be inserted into the corresponding groove 11b in the state of the neatly wound wire 8. Therefore, the side portions 13a, 14a composed of the neat wires 8 can be directly inserted into the groove 11b of the stator core 11 (FIG. 16 and FIG. 17).

In the winding machine 20, a stator coil 12 composed of an inner coil 13 and an outer coil 14 can be obtained. Therefore, as long as they are neatly wound, the coil 12 can be directly transferred in this state. Therefore, the side portions 13a and 14a in a neat state can be directly inserted into the groove 11b of the stator core 11.

Therefore, the stratification factor of the wire 8 in the groove 11b can be increased, so that the efficiency or miniaturization of the generator or motor using the stator 10 can be achieved.

In addition, as shown in FIG. 15, the distances D1 and D2 between the side portions 13a and 14a of the inner coil 13 and the outer coil 14 are different. Therefore, even if the side portions 13a and 14a are inserted into the respective grooves 11b, the coil tail end 13b of the inner coil 13 will not exceed the coil tail end 14b of the outer coil 14 and protrude from the end surface of the core 11. Therefore, it can be avoided that the coil tail end 13b of the inner coil 13 overlaps with the coil tail end 14b of the outer coil 14 and the formation of the coil tail ends 13b and 14b becomes difficult.

Furthermore, the stator 10 is manufactured by incorporating a plurality of stator coils 12 into a single stator core 11. Therefore, it is preferable to repeat the above-mentioned steps by rotating the stator core 11 to change the core rotation step of the groove 11b facing the openings of the slits 32a and 32b. That is, as described above, it is preferable to perform the core rotation step after the coil production step, the handover step, the coil deformation step, the clamp separation/approach step, the clamp insertion step, and the edge insertion step, and the core rotation step is repeated again from the coil production step. The steps.

The rotation of the stator core 11 can be performed by using the motor 18 to rotate the roller 17 in the support 15 in a state where the clamping of the stator core 11 by the fixing member 19 is released.

In this way, after changing the groove 11b facing the openings of the slits 32a and 32b, and repeating the above-mentioned steps, as shown in FIG. 17, a plurality of stator coils 12 can be installed in a single stator core 11. In addition, by performing the coil manufacturing step from the coil deformation step to the edge insertion step, the time for manufacturing the stator 10 can also be shortened and productivity can be improved.

Furthermore, in the above-mentioned embodiment, the three-axis moving mechanism 41 and the core moving mechanism 51 are provided as the moving mechanism 40. In contrast, as long as the pair of handover jigs 32 and 32 can be moved between the handover position and the insertion position, the moving mechanism 40 is not limited to these. For example, it may be one that does not include the core moving mechanism 51.

In addition, in the above-mentioned embodiment, the side insertion mechanism 61 that inserts the side portions 13a and 14a of the stator coil 12 into the corresponding groove 12b by inserting the pusher 62 into the corresponding slits 32a and 32b is performed. Description. In contrast, as long as the side portions 13a and 14a of the stator coil 12 can be inserted into the corresponding groove 12b, the side portion insertion mechanism is not limited to this. For example, by moving the pusher inserted in the slits 32a and 32b along the radial direction of the stator core 11, the sides 13a and 14a of the stator coil 12 can be pushed out from the slits 32a and 32b.

Furthermore, in the above-mentioned embodiment, the prevention mechanism 70 which has the hook member 72 was demonstrated. In contrast, the prevention mechanism 70 is not limited to the above-mentioned embodiment as long as the side portions 13a, 14a accommodated in the slits 32a, 32b can be prevented from escaping from the slits 32a, 32b. In addition, for example, as long as the side portions 13a, 14a detach from the slits 32a, 32b can be avoided, the prevention mechanism 70 may not be provided. When the prevention mechanism 70 is provided, the hook member 72 may not be used.

According to the above embodiment, the following effects are achieved.

The coil deforming device 31 of this embodiment is provided with rotating mechanisms 33, 33 that allow one of the slits 32a, 32b into which the sides 13a, 14a of the stator coil 12 are formed to be inserted, to any one of the transfer jigs 32, 32 One or both rotate; and the separation/approach mechanism 34, which separates/closes the pair of handover clamps 32, 32. Therefore, by rotating and separating/close the pair of transfer jigs 32 and 32 with the sides 13a and 14a of the stator coil 12 inserted, the stator coil 12 can be deformed without damaging the sides of the stator coil 12 The neatness of the wires 8 of the parts 13a and 14a.

In addition, in the stator manufacturing device 9 and the stator manufacturing method of the present embodiment, since such a coil deforming device 31 is provided, each side 13a of the stator coil 12 deformed without impairing the orderliness of the wire 8 , 14a is inserted into the groove 11b of the stator core 11 without compromising its neatness.

Here, even when the stator coil 12 composed of the inner coil 13 and the outer coil 14 is obtained in order to insert the sides 13a, 14a of the stator coil 12 into the plurality of grooves 11b, respectively, according to this embodiment, It is also possible to insert the side portion 13a of the inner coil 13 and the side portion 14a of the outer coil 14 into the inner slit 32a and the outer slit 32b of the pair of transfer jigs 32 in a state of being parallel to each other. Thereby, the sides 13a, 14a of the inner coil 13 and the outer coil 14 can be inserted into the plurality of grooves 11b without damaging the spacing between the sides 13a, 14a of the inner coil 13 and the outer coil 14 and the wire The neatness of 8.

As mentioned above, the embodiment of the present invention has been described, but the above embodiment only illustrates one of the application examples of the present invention, and is not intended to limit the technical scope of the present invention to the specific configuration of the above embodiment.

8‧‧‧Wire

9‧‧‧Stator manufacturing device

9a‧‧‧Platform

9b‧‧‧Long hole

11‧‧‧Stator core

12‧‧‧Stator coil

15‧‧‧Support

16‧‧‧Horizontal substrate

17‧‧‧Roller

19‧‧‧Fixtures

19a‧‧‧Abutment piece

19b‧‧‧Actuator

19c‧‧‧Telescopic pole

20‧‧‧Coiler

21‧‧‧Rotating mechanism

26‧‧‧Wire release component

27、40‧‧‧Mobile mechanism

31‧‧‧Coil Deformation Device

32‧‧‧Handover Fixture

32c、33a‧‧‧Rotation axis

32d‧‧‧L-shaped bracket

33‧‧‧Electric Motor

34‧‧‧Separation/Close to Institution

34a, 44a‧‧‧Servo motor

34b、44b、54、65‧‧‧Ball screw

34c‧‧‧ Follower

34d‧‧‧Shell

35、44c‧‧‧movable table

41‧‧‧Axis moving mechanism

42‧‧‧X-axis telescopic actuator

42c‧‧‧ Follower

42d‧‧‧Shell

43‧‧‧Z-axis telescopic actuator

43c‧‧‧Lift platform

43d‧‧‧bar

44‧‧‧Y-axis telescopic actuator

44d、52‧‧‧Guide rail

51‧‧‧Iron core moving mechanism

56, 66‧‧‧Motor

61‧‧‧Edge Insertion Mechanism

62‧‧‧Pushing piece

63‧‧‧Pushing piece moving mechanism

64‧‧‧movable body

72‧‧‧Hook member

Claims (9)

A coil deforming device, comprising: a pair of handover jigs each having slits into which opposite sides of the stator coils are parallel to each other; a rotating mechanism, which is parallel to each other in the depth direction of the slits Between the position and the inclined position intersecting the depth direction of the slit to rotate either or both of the pair of transfer jigs; and a separation/approach mechanism that separates or closes the pair of transfer jigs to each other . For example, the coil deforming device of the first item in the scope of the patent application further has: a prevention mechanism that prevents the side portion from escaping from the slit. For example, the coil deforming device of the first item of the scope of patent application, wherein a plurality of the above-mentioned slits are formed with a predetermined interval on each of the above-mentioned pair of handover jigs. A stator manufacturing device, comprising: a coil deforming device according to any one of items 1 to 3 in the scope of the patent application; a support member that supports the stator core; a winding machine that winds a wire to produce the pair of sides parallel to each other Part of the stator coil, and the pair of parallel sides are inserted into the groove of the stator core; a moving mechanism that allows the coil deforming device to enter the intersection of the slit at the pair of sides , Move with the above-mentioned pair of handover clamps to move between the insertion positions of the above-mentioned stator core; and An edge insertion mechanism which pushes the edge inserted into the slit from the slit and inserts it into the groove opposite to the slit, and the rotation mechanism of the coil deforming device is configured as, At the inclined position, the angle of the slit is aligned with the angle of the groove into which the pair of side portions are to be inserted, and the separation/close mechanism of the coil deforming device is configured to make the gap between the openings of the slits In accordance with the interval between the grooves for inserting the pair of side portions, the moving mechanism is configured to make the opening of the slit and the opening of the groove for inserting the pair of side portions at the insertion position Department facing. For example, a stator manufacturing device with a coil deforming device in the scope of patent application 3 in a stator manufacturing device in the scope of patent application 4, wherein the winding machine is configured to produce a cylindrical inner coil and surround the inner coil at a predetermined interval from the outside The above-mentioned stator coil composed of a coil other than the coil. For example, the stator manufacturing device of the fourth item of the scope of patent application, wherein the support member is configured to allow the stator core to rotate. A method of manufacturing a stator, comprising: a coil production step, which is to wind a wire to produce a stator coil having opposite sides parallel to each other; and a handover step, which is to make the slits respectively formed on a pair of handover jigs parallel to each other , And insert the above-mentioned pair of edges into the above-mentioned slit in a state of being parallel to each other; the coil deformation step is to rotate either or both of the above-mentioned pair of transfer jigs so that the angle of the above-mentioned slit is equal to The angles of the grooves of the stator core into which the above-mentioned edges are inserted are consistent; The clamp separation/adjacent step is to make the interval between the openings of the slits and the interval between the grooves into which the pair of edges are inserted to be consistent; the clamp insertion step is to make the pair of transfer clamps enter the stator core , So that the opening of the slit is opposed to the opening of the groove; and the edge insertion step is to push the edge of the stator coil inserted into the slit from the slit, and Insert into the corresponding groove of the stator core. For example, the manufacturing method of the stator of the seventh item of the scope of patent application, wherein in the above-mentioned coil production step, a stator coil composed of an inner coil and a predetermined interval from the outside surrounding the inner coil and the outer coil is made, and the above-mentioned pair is handed over The jig is respectively formed with an inner slit for inserting the side of the inner coil and an outer slit for inserting the side of the outer coil. In the handover step, the side of the inner coil is The side portions of the outer coil and the outer coil are inserted into the inner slit and the outer slit of the pair of transfer jigs in a state of being parallel to each other. For example, the method for manufacturing the stator of the 7th or 8th patent application, further comprising: an iron core rotating step of rotating the stator iron core to change the groove facing the opening of the slit. After the edge insertion step, the core rotation step is performed, and then the coil manufacturing step is performed again.

Images