JPH08317611A - Method and apparatus for inserting insulator in slot - Google Patents

Abstract

PURPOSE: To cope with double-layer concentric winding and double-layer lap winding with the simple constitution for an insulator in a slot, which is inserted into the core slot together with a coil, by commonly using a slot magazine, and dividing the insertion into the single insertion of an interior base, the insertion of the interior base and a wedge and the single insertion of the single wedge. CONSTITUTION: When a single interior base 31 is inserted, an interior-base inserting mechanism 2 is operated, and the interior base 31, which is cut and molded from the tape-shaped raw material through a cutter 42, a punch guide 40 and a punch plate 41, is implanted into a groove 37 of a magazine 36. Meanwhile, in the case of the single insertion of a wedge, a wedge inserting mechanism 3 is operated, and the wedge 32, which is cut and molded, is implanted into the groove 37 of the magazine 36. When the interior base 31 and the wedge 32 are inserted at the same time, the interior-base inserting mechanism 2 and the wedge inserting mechanism 3 are operated, and the interior base 31 and the wedge 32 are implanted into the groove 37 of the magazine 36, respectively. The insulators in the slot are inserted into the slot of a stator core 22 together with a coil 26.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for inserting an in-slot insulator for inserting an in-slot insulator such as a wedge and an insole into a slot of an iron core together with a coil.

[0002]

2. Description of the Related Art Conventionally, a single-layer concentric winding pattern in which only one layer of coil is inserted in an iron core slot has been most often used in middle- and small-sized motors. In this case, as an apparatus for inserting the coil and performing the intermediate forming, the actual utility model is Sho 61-457.
The one shown in Japanese Patent No. 32 is known. This one is equipped with a set of a coil insertion jig and an intermediate forming jig, and moves the core pedestal for setting the iron core into a U shape for coil insertion and intermediate forming. It shows a configuration in which the tool and the intermediate forming jig are arranged in parallel on a horizontally movable table, and the core pedestal is arranged so as to move in a direction perpendicular to that direction.

[0003]

By the way, JP-A-4-
Adopting the two-layer concentric winding or two-layer lap winding winding patterns described in Japanese Patent Application Laid-Open No. 156245 and Japanese Patent Application Laid-Open No. 4-178133, a coil and an in-slot insulator such as an insole and a wedge are inserted into an iron core slot. Regarding the above, with the above-described coil insertion and forming mechanism of the related art, it is impossible to cut the wedge and the insole having different cutting shapes and expanded shapes into specified dimensions, form them, and insert them into the slot together with the coil.

The reason is that the pusher, as in the prior art,
Since the expansion shape and thickness of the parts such as wedge magazines, punches, punch guides, and wedge guides through which the insulator in the slot passes are different, it cannot be inserted in a passage of one kind of expansion width such as wedge magazines and wedge guides. Is.

The present invention has been made in view of the above circumstances, and therefore an object thereof is to cut a wedge and an insole having different developed widths, thicknesses and lengths into a desired length with a single device. The object of the present invention is to provide a method of inserting an insulator in a slot that can be molded and easily inserted into a slot together with a coil, and at the same time, to provide a device for inserting an insulator in a slot that can be achieved with a simple structure.

[0006]

In order to achieve the above object, in the method of inserting the insulator in the slot of the present invention,
Cut the insole to the desired length in one slot magazine,
The first step of forming and winding the pre-wound coil on the coil insertion jig, fitting the iron core and inserting the coil and insole into the slot at the same time, and the insole and wedge with different expansion width and total length Cut and shape at a desired slot magazine position to a desired length, transfer the coil wound in advance to a coil insertion jig, and insert an iron core to simultaneously mount the coil and insole and the coil and wedge simultaneously. The second step of inserting into the slot, cutting and forming the wedge at the desired slot magazine position to the desired length, transferring the coil wound in advance to the coil insertion jig, and fitting the iron core The third step is to insert the coil and the wedge into the slot at the same time.

In addition, in the apparatus for inserting an insulator in a slot of the present invention, the insole inserting mechanism for cutting, shaping and extruding the insole and the wedge inserting mechanism for cutting, shaping and extruding the wedge are provided in one slot. A coil insertion jig provided on the outer circumference of the magazine, having a plurality of locking portions in the groove in the magazine, and a pusher for pushing out the insole and the wedge with a step difference of about 1/2 of the total length difference, and a base. A core pedestal that is movably provided above and holds an iron core and fits the iron core into the coil insertion jig.

In this case, the cutting and forming stroke of the insole is made shorter than that of the wedge, and both ends of the forming width of the insole are set to the groove engaging portions of the slot magazine, and the insole is cut to the slot magazine. The forming mechanism and the cutting of the wedge are arranged opposite to each other.

[0009]

According to the above insertion method, the steps of cutting, forming and inserting the sole insole, cutting, forming and inserting the insole and wedge, and cutting, forming and inserting the sole wedge are adopted. The insertion of the in-slot insulator together with the coil insertion of the winding pattern of the two-layer concentric winding or the two-layer overlapping winding can be desired in a continuous process.

Further, according to the above-mentioned insertion device, the insole insertion mechanism and the wedge insertion mechanism are arranged opposite to each other in one slot magazine, and the core pedestal is moved to move the iron core at the position of the wedge and insole insertion mechanism. Since it can be fitted into the coil insertion jig, 1
It is possible to separate the insertion of the insole alone, the insertion of the insole and the wedge, and the insertion of the wedge alone by the device of the stand, and it is possible to realize with a simple configuration. Furthermore, in that case, since the push-out part of the insole insertion mechanism is shared and the push-out stroke is made the same and a step is provided at the tip of the pusher, it is possible to separate insertion of insoles and wedges of different total length. , Each can be inserted to the proper position.

Since the insole cutting / forming mechanism and the wedge cutting / forming mechanism are arranged opposite to the slot magazine, the insertion device can be made compact. In addition, since there is only one insertion drive unit, the mechanism is a single cylinder.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. First, FIG. 1 shows the entire base 1, and on the rear side (upper side in the figure), the insole, the wedge insertion mechanisms 2 and 3 and the coil forming mechanism 4 are arranged in order from the left side. The core pedestal 5 is arranged (on the lower side in the figure).

More specifically, the core pedestal 5 is arranged so as to be movable back and forth (up and down in the figure) indicated by an arrow A along two slide bars 6 provided on the base 1 and parallel to the left and right. As shown in FIG. 2, the motor 8 for moving the core pedestal 5 back and forth by rotating the screw rod 7 penetrates the center portion between the screw rods 7 in a threaded state. Is disposed together with the belt transmission mechanism 9 on the entire surface. Further, the core pedestal 5 is arranged so as to be movable left and right along two slide bars 10 which are provided below the slide bar 6 and which are parallel to each other in the front-rear direction, and are arranged in the center between them. 2, a screw rod 11 is threadedly passed therethrough, and a motor 12 for rotating the screw rod 11 to move the core pedestal 5 to the left or right is provided with a gear transmission mechanism on the right side of the base 1 as shown in FIG. It is arranged together with 13.

On the other hand, the coil forming mechanism 4 has a guide tube 15 mounted forward on the base 1 via a mounting plate 14.
As shown in FIG. 3, the guide cylinder 15 has a cannonball-shaped guide portion 16 at the front end thereof, and a plurality of expansion pieces 17 are provided in an annular arrangement on the rear side thereof. There is. With respect to the expansion piece 17, in the guide cylinder 15, the same number of sheet piles 19 as the expansion piece 17 are arranged from the rear so as to be moved forward and backward integrally with the piston 18 by a cylinder (not shown).

Further, a large number of protrusions 21 are provided on the front and rear portions of the expansion piece 17 of the guide plate 15 in the same annular arrangement. On the rear side of the projection 21 on the rear side of the guide plate 15,
The same number of forming fins 2 as the number of slots 23 into which the coils 26 are inserted at one time when inserting the coils of the stator core 22 which will be described later.
7 are arranged radially. Further, a forming die portion 28 for forming one coil end is provided at the base of the guide cylinder 15.

The guide cylinder 15 is rotated by a drive source (not shown) through the rack and the pinion at any angle. In addition, with respect to such a guide cylinder 15, the core pedestal 5 has a first molding position in which the front coil end 26a of the loaded and held stator core 22a is fitted to the expansion piece 17, and a rear molding position. The coil end 26b can be stopped at a second molding position where the expansion piece 17 is fitted to the expansion piece 17 and a third molding position where the leading coil end 26a abuts the molding die 28 at the base of the guide cylinder 15. . In addition, the core pedestal 5 has a tooth portion 2 of the stator core 22.
Use the same number of tapered cuffs as 9 for the coil end 2
6a and the coil end 26b on the rear side are annularly arranged so that they can be inserted and removed by a drive source (not shown) via an inserting / removing mechanism (not shown).

As shown in FIG. 5, the insole 31 and the wedge 32 are made of the same material and differ only in thickness, length and spread width. Therefore, the structure of the insole insertion mechanism 2 and the wedge insertion mechanism 3 is basically the same, and in FIG. 6, the insole 31 and the wedge 32 are cut and formed at opposite positions and inserted by the pusher 45 described later. An example is shown. In FIG. 6, the annular holder 3 fixed to the fixed base 33
A cylindrical casing (not shown) is connected to the casing 4, and an insole 31 and a wedge magazine 36 are rotatably arranged in the casing.

As shown in FIG. 4, a plurality of grooves 37 having a plurality of steps are formed in the insole 31 and the wedge magazine 36. The groove 37 allows the insole 31 to pass through in the upper part of the drawing, and allows the wedge 32 to pass through in the lower part thereof. Therefore, in order to prevent the wedge 32 from jumping out of the groove 37, a step is provided and an engaging portion 37a is provided at the center of the side wall of the groove 37 as shown in FIG. Further, the insole 31 and the wedge magazine 36 are rotated by a drive source (not shown) via the ratchet 38.

A jig 39 is attached to the window formed on the outer peripheral portion of the casing, and an insole passage (a wedge passage in the wedge insertion mechanism 2) and a punch guide hole 40 are formed by the jig 39. . A punch plate 41 is inserted into the punch guide hole 40, and the punch plate 41 is operated in the vertical direction in the figure by a drive mechanism (not shown). Further, a cutter 42 is provided so as to contact the jig 39, and an insole feed motor (a wedge feed motor in the wedge insertion mechanism 3) 43 is provided near the cutter 42. This insole feed motor 4
A roller 44 is attached to the rotating shaft of the cutter 3, and the tape-shaped material of the insole 31 (the tape-shaped material of the wedge 32 in the wedge insertion mechanism 3) wound in a roll shape is rotated by the rotation of the roller 44. It is designed to be sent to each side by a predetermined length.

A plurality of insole pushers (wedge pushers in the wedge insertion mechanism 3) 45 are annularly arranged at the rear of the wedge magazine 36 (to the right in the drawing) in correspondence with the groove 37, and one end ( The tip 45a) faces the groove 37, and the other end is attached to the attachment fitting 46. The mounting bracket 46 is mounted on a movable base 47, and the movable base 47 is supported by two ball screws 48. The ball screw 48 is driven by a servomotor 49 to drive a belt transmission mechanism 50.
The insole pusher and wedge pusher 45 together with the movable base 47 are moved back and forth (left and right in the drawing) along the ball screw 48 by rotating the ball screw 48 through the. The tip end 45a of the wedge pusher 45 is provided with a step portion 45b which is about 1/2 of the total length difference between the wedge and the insole as shown in FIG.

As shown in FIG. 6, the coil inserting jig 55 has a coil guide 59 formed by annularly arranging a plurality of blades 58 at a predetermined interval, one end of which is a blade holder. It is fixed at 60. A hollow shaft 61 is connected to the blade holder 60.
Is attached to the base 62, and the base 62 is fixed to the fixed base 33 by the guide 56.

A stripper 63 is slidably inserted in the coil guide 59 in the front-rear direction.
A stripper shaft 64 is connected to. Stripper shaft 6
Reference numeral 4 denotes an engaged portion 6 that engages and disengages with the engaging portion 53 of the rod 52.
Have five. On the outside of the coil guide 59, a plurality of insulator guides 66 are annularly arranged corresponding to each blade 58 and fixed to a cylindrical holder 67, and the cylindrical holder 67 is attached to the base 62. In addition, this insulator guide 6
6 and the magazine 36 described above, since the insole 31 and the wedge 32 having different developed widths and thicknesses pass therethrough at the time of insertion, a plurality of locking portions 37a (see FIGS. 4 and 5) are formed on the passing surface thereof. .

Next, the operation of the above structure will be described. First, it is assumed that the stator core 22 has four poles and 36 slots, and in particular, the winding pattern shown in FIG. Regarding the coils U1, V1, W1 of the first layer, the tape-shaped material of the insole 31 is cut by the insole feed motor 43 shown in FIG. 6 being operated in the standby state shown in FIG. A predetermined length is sent to the side of 42 and is cut by the cutter 42.

Then, the punch plate 41 is operated, and the cut insole 31 is driven into the groove 37 of the insole magazine 36 while being bent through the punch guide hole 40. When one insole 31 is driven, the insole magazine 36 is rotated by a drive source (not shown) via the ratchet 38 by a predetermined angle (10 ° for 36 slots). By repeating such an operation, each groove 37 (18 pieces) of the insole magazine 36
The insole 31 is driven into.

At this time, the insole 31 is driven by the punch plate 41 on the upper part of the insole magazine 36 as shown in FIG. The operator is a coil 2 wound in a separate process.
6 is transferred to the gap between the blades 58 of the coil insertion jig 55. At this time, the wedge insertion mechanism 3 is not operating and the wedge 32 does not enter the groove 37.

Subsequently, the core pedestal 5 located at the position shown in FIG.
Attach the stator core 22 to. Then, when the motor 12 is operated, the core receiving base 5 reaches the position before the wedge inserting mechanism 3 by the rotation of the screw rod 11, and the coil inserting jig 55.
It is moved to the front of and stopped. After that, the motor 8 is actuated to rotate the screw rod 7 and the core support 5
Is moved to the coil insertion jig 55 side, and the iron core 22 is fitted onto the coil insertion jig 55 as shown by the chain double-dashed line in FIG.

In this state, the servo motor 49 is operated next to rotate the ball screw 48 and move the movable base 47 forward. As the movable base 47 advances, the insole pusher 45 passes through the groove 37 of the insole magazine 36 and presses the insole 31 inserted in the magazine 36. At the same time, the rod 52 advanced in the guide cylinder 54
However, the engaging portion 53 is engaged with the engaged portion 65 of the stripper shaft 64 to press the stripper 63. As a result, the insole 31 and the coil 26 are pressed and completely inserted into the slot 23 of the iron core 22 as shown in FIG.

At this time, the insole 31 has a wedge 32 which will be described later.
Since the total length is longer, as shown in FIG. 10, insole pusher 4
5 is pressed by the step portion 45b. Therefore, this step portion 4
The length of 5b is about 1 / of the total length difference between the insole 31 and the wedge 32.
2 is desirable. Therefore, it is not necessary to correct the position of the iron core 22 after inserting the insole 31. After that, the stripper 63 and the insole,
The wedge pushers 45 return to their original positions. The motors 8 and 12 are also operated in opposite directions to return the core pedestal 5 to the original position.

Next, regarding the molding of the coil end, the position of the core pedestal 5 which has been returned to the above-mentioned state is the preparation position shown by the solid line in FIG. 4, and at this position, the iron core 22 coil-forms the coil end 26a. It faces the mechanism 4. In this state, the coil forming mechanism 4 operates a drive source (not shown) so that the forming fin 27 causes the coil U of the second layer shown in FIG.
The guide tube 15 is previously rotated so that the positional relationship is such that the insertion positions of 2, V2 and W2 are passed.

From this state, the core pedestal 5 is moved to the first molding position by the operation of the motor 8 so that the coil end 26a on the front side of the iron core 22 is fitted to the expansion piece 17. Next, the cylinder (not shown) is operated to move the sheet pile (not shown) forward through the piston 18. Then, the expansion piece 17 is pushed out by a sheet pile (not shown) and expanded, thereby pressing the coil end 26a at the front side from the inside to form a predetermined open shape.

After that, the sheet pile is returned and the expansion piece 17 is reduced in diameter, and then the core pedestal 5 is moved to the second molding position to be fitted onto the expansion piece 17 behind the coil end 26b of the iron core 22. To Then, similarly to the above, the cylinder (not shown) is actuated to move the sheet pile forward through the piston 18. Then, the expansion piece 17 is pushed out by the sheet pile and expanded, thereby pressing the rear coil end 26b from the inside to form a predetermined open shape.

After that, the sheet pile is further returned to reduce the diameter of the expansion piece 17, and then the core pedestal 5 is moved to the third forming position to move the coil end 26a of the leading end to the forming die portion of the base portion of the guide tube 15. It is pressed against 28 and further formed into a predetermined open shape. At the same time, the coil 26 of the first layer is pressed by the molding fins 27 toward the bottom of the slot 23 to be molded into a predetermined fitting shape, and the insole 31 is also pressed toward the bottom of the slot 23, The coil forming for the first layer is completed.

Next, the coils U2, V2, W2 of the second layer
Will be described. Also in this case, the same operation as the first layer coils U1, V1 and W1 is performed from the standby state shown in FIG. 1, but in the second layer coils U2, V2 and W2, they enter the bottom of the slot 23. Coil 26 to the lower coil,
When the coil 26 that enters the upper portion of the slot 23 is the upper coil, the insole 31 is required for the slot 23 into which the lower coil is inserted, and the slot 2 into which the upper coil is inserted.
For 3, a wedge 32 is required.

However, with respect to the insole 31 in this case, basically, the above-mentioned first layer coils U1, V1, W
The procedure is the same as in the case of 1, but the cutting, molding and insertion of the insole 31 are stopped for the slot 23 into which the upper coil is inserted. At this time, 12 insoles 31 are driven into the magazine 36 as shown in FIG. In accordance with this operation, the wedge insertion mechanism 3 has a slot 23 into which the upper coil is inserted.
On the other hand, similarly to the case of the insole insertion mechanism 2 described above, the wedges 32 (6 pieces) cut and formed in accordance with the rotation of the magazine 36 are driven into the groove 37 of the wedge magazine 36.

The wedge 32 is driven deep into the magazine 36 as shown in FIG. 4 and is locked by the locking portion 37a. Next, the core pedestal 5 with the iron core 22 attached is shown in FIG.
The iron core 22 is fitted onto the coil insertion jig 55 by moving the coil insertion jig 55 side from the standby position. In this state, the servo motor 49 is driven to move the movable base 47 forward. Then, the wedge pusher 45 inserts the insole 31 (12 pieces) and the wedge 32 (6 pieces) in the groove 37 of the wedge magazine 36 toward the insulator guide 66, and inserts it into the slot 23 of the iron core 22. At this time, although the total lengths of the insole 31 and the wedge 32 are different, the tip 45a of the wedge pusher 45 is located at the same position as the coil of the first layer.

After the insertion, the motors 49, 8 and 12 are operated in the reverse direction to return them to their original positions. The coil 26 is formed in the same manner as described above. However, in this case, the position of the forming fin 27 is set in advance so as to have a positional relationship of passing through the insertion positions of the coils U3, V3, W3 of the third layer.

After this, the coils U3, V3, W of the third layer
The procedure for 3 is also performed in the same manner as described above. Further, the position of the forming fin 27 for forming the coil in this case is determined by the coil U of the fourth layer.
It is set in advance so that the positional relationship passes through the insertion positions of 4, V4 and W4. Thus the coil end 26
a, 26b to the inside of the slot 23
In addition to the above-mentioned molding, the molding for inserting the coil of the next layer provides a sufficient remaining space in the slot 23, and the coil 26 and the insole 3 of the next layer can be obtained.
1, the wedge 32 can be easily inserted.

Finally, the fourth layer coils U4, V4, W
4 will be described. This fourth layer coil U4, V
4 and W4 are all in the upper part of the slot 23,
The insole 31 is not needed at all, only the wedge 32 is required.
Therefore, the insole insertion mechanism 2 stops its operation, and the wedge insertion mechanism 3 causes the wedges 32 to be necessary (18 pieces) by the method described above.
It is cut, molded, and driven into the magazine 36. At this time, the coil 26 is transferred to the coil insertion jig 55. Subsequently, the core pedestal 5 is moved by the operation of the motors 8 and 12, and the iron core 22 is fitted onto the coil insertion jig 55.

In this state, the servo motor 49 is then driven to move the movable base 47 and the rod 52 to the iron core 22 side. Then, the stripper 63 and the wedge pusher 45
Thus, the coil 26 and the wedge 32 are inserted into the slot 23. At this time, since the wedge 31 is inserted by the tip portion 45a of the pusher, it can be inserted up to the specified position, and it is not necessary to correct the insertion position. After that, the motors 49, 8,
12 is operated in the reverse direction and returned, and the iron core 22 is taken out from the core pedestal 17.

In the winding pattern shown in FIG. 10 or 11, the first layer coils U1, V1, W1 and the second layer
All the coils U2, V2, W2 of the layer are bottom coils,
An insole is required. In addition, the coil U3 of the third layer
The coils V3, W3 and the coils U4, V4, W4 of the fourth layer are all upper coils and require wedges. Therefore, the second step of claim 1 in which the insole is cut and shaped in one slot, and the wedge is cut and shaped in the other slot and the coil is inserted together with the coil is unnecessary. . The first layer coil and the second layer coil are collectively performed in one insertion operation, and the third layer coil and the fourth layer coil are collectively performed in one insertion operation (total: It can be inserted twice.

In the case of the above-mentioned structure at the time of coil forming, the structure in which the guide cylinder 15 of the coil forming mechanism 4 is rotated is not limited to this, but the iron core 22 may be rotated. good.

[0042]

The present invention is as described above,
It has the following effects. According to the method of inserting the insulator in the slot of claim 1, the steps of cutting, molding and inserting the insole alone, and cutting, molding and inserting the insole and wedge, and the wedge by sharing the slot magazine. Since the single cutting, forming, and inserting steps are adopted, it is possible to insert the insulator in the slot together with the coil insertion of the winding pattern of the two-layer concentric winding or the two-layer overlapping winding in a continuous process.

According to the method for inserting the in-slot insulator of the second aspect, only the coil and the insole are inserted, and only the coil and the wedge are inserted, so that the inserting step is simplified. Also, the first
The coil of the second layer and the coil of the second layer can be inserted at the same time, and the entire coil can be inserted by inserting the coil twice.

According to the third aspect of the present invention, there is provided an insole insertion mechanism and a wedge insertion mechanism on the outer circumference of one slot magazine, and a plurality of locking portions are provided in grooves in the magazine. Since the pusher that pushes out the insole and wedge is a coil insertion jig with a step difference of about 1/2 of the total length difference, it is possible to insert the insole independently with one device and one axis insertion mechanism. And the insertion of the insole and the wedge and the insertion of the wedge alone can be distinguished, and it can be realized with a simple configuration without correcting the insertion position for each insertion position.

According to the fourth aspect of the apparatus for inserting an insulator in a slot, an insole and a wedge having different cutting widths can be cut and formed in the same slot magazine, and can be inserted into respective required positions.

According to the apparatus for inserting the insulator in the slot of the fifth aspect, since the cutting and forming mechanism of the insole and the cutting and forming mechanism of the wedge are arranged opposite to each other, the tape of the insole, the wedge and the material is replaced. Also, maintenance of slot magazines, punches, cutters, etc. can be easily done from one direction. Also, the insertion mechanism is uniaxial, and the device is simple.

[Brief description of drawings]

FIG. 1 is a plan view of the entire apparatus showing an embodiment of the present invention,

FIG. 2 is a partially cutaway front view of the entire apparatus,

FIG. 3 is a side view of a main part of a coil forming mechanism,

FIG. 4 is a partial sectional view of the magazine,

FIG. 5 is a vertical sectional front view of an insulator guide portion of a coil insertion jig,

FIG. 6 is a vertical sectional side view of an insole wedge insertion mechanism and a coil insertion jig,

FIG. 7 is a schematic view showing an example of a winding pattern,

FIG. 8 is a vertical cross-sectional view of a portion where the first layer coil of the iron core is inserted,

FIG. 9 is a longitudinal sectional view of a portion of the iron core into which the second layer coil is inserted,

FIG. 10 is a schematic view showing another winding pattern (100% pitch),

FIG. 11 is a schematic view showing another winding pattern (50% pitch).

[Explanation of symbols]

1 is a base, 2 and 3 are insole wedge insertion mechanisms, 4 is a coil forming mechanism, 5 is a core pedestal, 6 is a slide bar, 7 is a screw rod, 8 is a motor, 10 is a slide bar, 11 is a screw rod , 12 is a motor, 15 is a guide tube, 17 is an extension piece,
18 is a piston, 22 is a stator core,
23 is a slot, 26 is a coil, 27
Is a forming fin, 31 is an insole, 32 is a wedge, 36 is an insole magazine (wedge magazine), 37
Is a groove, 38 is a ratchet, 41
Is a punch plate, 42 is a cutter, 43 is a feed motor, 45 is a pusher, 47 is a movable base, 48 is a ball screw, 49 is a servomotor, 55 is a coil insertion jig, 56
Is a guide, 59 is a coil guide, 6
3 is a stripper, 64 is a stripper shaft,
Reference numeral 65 is an engaged portion, and 66 is an insulator guide.

Claims (5)

[Claims] 1. A method for inserting an in-slot insulator such as a wedge and an insole together with a coil into an iron core slot, wherein a coil is inserted into a slot magazine by cutting the insole to a desired length and winding the coil in advance. Reprinted in
The first step of fitting the iron core and inserting the coil and the insole into the slot at the same time, and the insole and the wedge with different development widths and total lengths at the desired slot magazine groove position to the desired length and shape. After cutting and forming, transfer the coil wound in advance to the coil insertion jig and insert the coil and insole and the coil and wedge into the slot at the same time by fitting the iron core, and the wedge is desired. After cutting and shaping to the desired slot length and shape at the slot magazine slot, transfer the coil wound in advance to the coil insertion jig, insert the core into the slot and insert the coil and wedge into the slot at the same time. A method of inserting an insulator in a slot, which comprises the third step. 2. The insertion method according to claim 1, wherein
The first step of inserting the coil and the insole into the slot at the same time, and the third step of inserting the coil and the wedge into the slot at the same time
And a step of inserting the insulator in the slot. 3. An insole insert mechanism for cutting and molding and pushing out an insole, and a wedge and an insole inserted into the slot together with a coil in a slot of an iron core. A wedge insertion mechanism that pushes out is provided on the outer periphery of the slot magazine, a plurality of locking parts are provided in the groove in the magazine, and the insole and the pusher that pushes out the wedge are provided with a step difference of about 1/2 of each total length difference An insertion jig; and a core pedestal that is movably provided on the base and holds the iron core and fits the iron core into the coil insertion jig. Insertion device. 4. The stroke of the punch for cutting and forming the insole is made shallower than the stroke of the punch for cutting and forming the wedge, and both ends of the forming width of the insole are set to the groove locking portions of the slot magazine. The device for inserting an insulator in a slot according to claim 3. 5. The device for inserting an insulator in a slot according to claim 3, wherein the insole cutting / molding mechanism and the wedge cutting / molding mechanism are arranged to face each other with respect to one slot magazine. .