JPH10150748A - Coil inserter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance productivity while protecting a coil against damage, when the coil is inserted into a slot of a core while being guided by a blade held on a blade holder and a coil holding pin held on a blade guide, by preventing the coil from floating or tilting on the blade holder side during insertion. SOLUTION: A pin fitting hole 50 is made in a blade holder 37 and a coil holding pin 49 long enough to reach the pin fitting hole 50 is fitted, at the forward end thereof, in the pin fitting hole 50 thus sustaining an interval between the coil holding pins 49 when a coil 66 is inserted. In this regard, the interval between the coil holding pins 49 is prevented from increasing even if the stator coil 66 is shifted to the rear side due to insertion resistance caused by frictional against a stator core 34 when the blade holder 37 and a blade guide 4b, advance while being pulled by the rod 36a of a cylinder 36.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coil insertion device for guiding a coil by a blade held by a blade holder and a coil holding pin held by a blade guide to insert the coil into a slot of an iron core.

[0002]

2. Description of the Related Art Conventionally, as this kind of coil insertion device, the one shown in FIGS. 9 to 16 is known. In this case, first, as shown in FIG.
Are fixed, and a rotating ring 3 is provided on the receiving base 2 to constitute an iron core holding device 5 for holding the stator core 4 of the rotating electric machine with the rotating ring 3 so that the rotation angle can be changed.

[0003] A cylinder 6 as a moving device is fixed to the base 1 so as to face the iron core holding device 5, and a rod 6 a of the cylinder 6 is attached to the shaft core of the stator core 4 held by the iron core holding device 5. To go back and forth. A connecting member 8 for connecting the blade holder 7 is provided at the tip of the rod 6a.

The blade holder 7 is formed in an arc shape as shown in FIG. 11, and a plurality of blades 9 are symmetrically divided into two groups under the central portion of the blade holder 7 at a lower portion thereof, and each is fixed. The core 4 is held so as to extend in the axial direction. The blade 9 is composed of a pair of long members 10 and 11, respectively, and has a shape of a guide piece that wraps around the tooth head 4a of the stator core 4 as shown in FIG. 10a and 11a are formed. Further, as shown in FIG. 11 and FIG.
Are formed. FIG.
As shown in FIG. 3, the blade 9 is held by embedding a base end 9 a in a blade holder 7.

On the other hand, the blade guide 14 is shown in FIG.
As shown in FIG. 4, the fan is formed in a fan shape.
As shown in FIG. 5 and FIG. 16, a fitting projection 15 which enters between the blades 9 and 9 is provided, both side holding members 16 are attached, and a plurality of coil holding pins 17 are provided. Similarly to the blade 9, the blade guide 14 is divided into two groups symmetrically with respect to the central portion of the blade guide 14, and each of the blades 9 is located inside (on the center side of the stator core 4,
9, 10, 12 and 13). This coil holding pin 17
The adjacent side portions are formed on a substantially flat surface 17a, and the gap between the flat surfaces 17a, 17a is set substantially equal to the gap between the blades 9.

Further, at both ends of the blade guide 14,
As shown in FIGS. 14 and 9, a connection pin 18 corresponding to the connection pin fitting hole 12 is attached. The blade guide 14 has an arcuate bulging surface 19a on the front side.
A coil end holding member 19 made of a synthetic resin having the following structure is provided, and a handle 20 is provided at a central portion on the opposite side.

With this configuration, the stator coil 21 shown in FIG.
Is inserted into the slot 23 of the stator core 4 in which the slot insulator 22 is stored, first, the stator core 4 is housed and held in the rotating ring 3 of the iron core holding device 5. Next, the blade holder 7 is set inside the stator core 4 such that the guide pieces 10a and 11a of the blade 9 wrap around the respective tooth heads 4a of the portions where the stator coil 21 of the stator core 4 is inserted. The rod 6a of the cylinder 6 is advanced, and the blade holder 7 is connected to the connecting member 8 at the tip thereof by, for example, a bolt 24.

On the other hand, if the position of the pre-wound stator coil 21 differs from one group of coil holding pins 17 symmetrically divided with respect to the center of the blade guide 14 to another group, the position of each unit coil differs. And set by passing.

Then, the coil holding pin 17 on which the stator coil 21 is set and the blade guide 14 are advanced toward the blade holder 7, and the connecting pin 18 is inserted into the connecting pin fitting hole 12 of the blade holder 7. Accordingly, as shown in FIG. 16, the stator coil 21 is also passed over the blade 9 in the same manner as the coil holding pin 17, and
The fitting projection 15 enters between the blades 9, 9, and both side holding members 16 are positioned so as to sandwich both sides of one group of the blade 9 and both sides of the other group, respectively. Are combined.

Thereafter, the cylinder 6 is operated to move the rod 6
a, the blade holder 7 is gradually retracted.
Is moved along the tooth head 4 a of the stator core 4, and the stator coil 21 bridged between the coil holding pin 17 and the blade 9 is pulled. Then, as shown in FIG. 12, the stator coil 21 is guided and inserted into the slot 23 of the stator core 4 from between the coil holding pins 17 and from between the blades 9.

Then, when the coil end portion 21a at the front of the stator coil 21 comes out of the stator core 4 as shown in FIG. 10, the retraction movement by the cylinder 6 is temporarily stopped, and the blade guide 14 is pulled back. Thereafter, the retraction movement by the cylinder 6 is resumed, and when the blade 9 is completely removed from the stator coil 21, the retraction movement by the cylinder 6 is completely stopped. Thus, the stator coil 21 is inserted into the predetermined slot 23 of the stator core 4 and then another slot 23 is inserted.
In order to insert the stator coil 21 into the connecting member 8, the rotating ring 3 of the iron core holding device 5 is rotated to change the rotation angle of the stator iron core 4 and insert the stator coil 21 into the connecting member 8. Then, the stator coil 21 is inserted in the same manner as described above.

[0012]

In the case of the above, when the stator coil 21 is inserted into the slot 23 of the stator core 4, the stator coil 21 receives the insertion resistance due to friction with the stator core 4. For this reason, the blade holder 7
And the blade guide 14 is pulled by the rod 6a of the cylinder 6 and advances as shown by an arrow A in FIG. 10, while the stator coil 21 tends to be left behind, as shown by an arrow B in the same figure. To the rear. For this reason, the stator coils 21 are bundled between the blades 9 and 9 and between the coil holding pins 17 and 17 to increase the width, and apply an expanding force to the blades 9 and 9 and the coil holding pins 17 and 17. On the other hand, since the coil holding pin 17 has a free end and is expanded as it is, the bundle width of the stator coil 21 further increases, making it difficult to insert the coil into the slot 23, and the insertion resistance increases remarkably.

In this case, the rod 6 of the cylinder 6
a, the blade guide 14 side is left, and only the blade holder 7 side is about to be pulled. Therefore, the blade holder 7 side includes the blade 9 including the guide pieces 10a and 11a and the teeth of the stator core 4. The gap between the stator core 4a and the head 4a floats or inclines toward the center of the stator core 4 due to the gap between the stator core 4 and the stator coil 21. For this reason, the productivity is deteriorated, and the stator coil 21 may be damaged.

Further, in this case, since a bending force is applied to the connecting pin 18 and the connecting pin 18 comes to bite into the connecting pin fitting hole 12, it is difficult or impossible to separate them after inserting the coil. The use will be hindered.

Further, the floating on the blade holder 7 side during the insertion of the coil also affects the blade guide 14 side, and may be raised to the blade guide 14 side. In this case, since the stator coil 21 is more difficult to be inserted, productivity is further deteriorated,
The stator coil 21 will be further damaged.

On the other hand, in the above-described structure, the blade holder 7 and the blade guide 14 are connected and held by the connection pin 1 with respect to the connection pin fitting hole 12 of the blade holder 7.
8, the insertion of the fitting projection 15 between the blades 9, 9 and the sandwiching of each group of blades 9 by the both side holding members 16, the blade holder 7 and the blade being inserted into the coil. The connection with the guide 14 is not sufficiently secured.

For this reason, the blade guide 14 is separated from the blade holder 7 during the insertion of the coil, and thereafter, the stator coil 21 is not inserted into the slot 23 of the stator core 4, and the work is repeated and the production is repeated. I was sick. In this case, the blade holder 7 and the blade guide 14 may be damaged or deformed due to abnormal contact with the stator core 4, and the stator core 4 may be damaged or deformed accordingly. Had.

Further, the blade 9 is formed with guide members 10a and 11a having a shape enclosing the tooth head 4a of the stator core 4 in the elongated members 10 and 11 constituting the blade. Although the insertion of the stator coil 21 into the slot 23 of the iron core 4 is guided,
The stator coil 2 for the guide pieces 10a, 11a
The contact of No. 1 damaged the stator coil 21 and deteriorated the insulating property of the stator coil 21. In this case, since the blade 9 is also damaged, the blade 9 (elongated members 10 and 11)
The entire system had to be replaced, and maintenance costs were high.

The present invention has been made in view of the above circumstances, and a first object of the present invention is to prevent the blade holder from lifting or tilting during coil insertion, thereby improving productivity and improving coil productivity. While preventing damage,
An object of the present invention is to provide a coil insertion device which can smoothly separate a blade holder side and a blade guide side after coil insertion and can be used without difficulty thereafter.

A second object of the present invention is to provide a coil insertion device capable of preventing at least the blade guide from floating during coil insertion and improving the productivity. A third object of the present invention is to provide a coil that can sufficiently secure the connection between the blade holder and the blade guide during coil insertion, thereby improving productivity, preventing damage to the blade holder and the blade guide, and preventing damage to the iron core. Providing an insertion device. A fourth object of the present invention is to provide a coil insertion device capable of preventing coil damage due to a blade during coil insertion or blade damage due to a coil, thereby improving coil insulation and reducing the cost of blade maintenance. To be.

[0021]

In order to achieve the above object, a coil insertion device according to the present invention includes an iron core holding device for holding an iron core so that its rotation angle can be changed.
A blade holder that holds a plurality of blades along the tooth head of the iron core, a blade guide that holds a plurality of coil holding pins extending parallel to the blade, and a moving device that moves the blade holder in the axial direction of the iron core A coil is set on the coil holding pin, and the blade holder and the blade guide are coupled so that the coil is set on the blade from the coil holding pin. In this state, the blade holder And the blade guide is moved by the moving device to insert the coil into the slot of the iron core. First, a pin fitting hole is formed in the blade holder, and the coil holding pin is The tip of the coil holding pin is fitted into the pin fitting hole so that it can reach the pin fitting hole. The features.

According to this structure, the distance between the coil holding pin and the pin fitting hole of the blade holder is maintained by fitting the tip of the pin to the pin holding hole. However, the gap is not expanded. Therefore, the insertion resistance can be kept small without further increasing the bundle width of the coil, and the floating or inclination on the blade holder side can be prevented.

In the coil insertion device of the present invention, the second
A moving member that moves along the tooth head on the opposite side in the radial direction of the iron core during movement by the moving device of the blade holder and the blade guide, thereby providing a suppressing member that suppresses at least the floating of the blade guide side. . According to this configuration, the lifting member suppresses at least the lifting of the blade guide side during insertion of the coil, so that the coil is not difficult to be inserted into the slot of the iron core.

In the coil insertion device of the present invention, the third
And a fastening member for holding the blade holder and the blade guide in a coupled state during movement by the moving device. According to this, by the fastening member, the blade holder and the blade guide are connected and held during the insertion of the coil, and they are not separated, so that the coil is not inserted into the slot of the iron core, The blade holder and the blade guide do not abnormally contact the iron core.

In the coil insertion device of the present invention, the fourth
In addition, the blade is provided with a guide member made of a material having good slipperiness, which wraps up to the tooth head of the iron core and guides insertion of the coil into the slot of the iron core. According to this, the coil is guided by the guide material made of a material having good slipperiness and is inserted into the slot of the iron core, so that the coil does not directly contact the blade, so that the coil is inserted by the blade during insertion of the coil. Damage to the coil or damage to the blade by the coil is prevented.

[0026]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below.
This will be described with reference to FIGS. First, FIG. 1 shows a base 31, a pedestal 32 is fixed on the base 31, a rotating ring 33 is provided on the pedestal 32, and a stator core 34 of the rotating electric machine is rotated by the rotating ring 33. An iron core holding device 35 for holding the angle so as to be changeable is configured.

A cylinder 36, which is a moving device, is fixed to the base 31 so as to face the iron core holding device 35, and a rod 36a of the cylinder 36 is provided at the axial center of the stator core 34 held by the iron core holding device 35. To go back and forth. A connecting member 38 for connecting the blade holder 37 is provided at the tip of the rod 36a.

The blade holder 37 is formed in an arc shape as shown in FIG.
9 symmetrically with respect to the center of the blade holder 37.
It is divided into groups and held so as to extend in the axial direction of the stator core 34, respectively. Each of the blades 39 includes a pair of long members 40 and 41 and guide members 42 and 43 combined with the long members 40 and 41. Among them, the guide members 42 and 43 are made of a slippery material such as a polyester film. It is molded from a good material and, as shown in FIG.
Both outer surfaces and both outer surfaces of the tooth head 34a of the stator core 34 (both inner surfaces of the opening of the slot 44) are wrapped.

The guide members 42 and 43 are long members 40 and
It can be attached to and detached from 41, and can be replaced with one having a different thickness. In this case, the guide member 42,
Reference numeral 43 denotes a part to be attached by sandwiching the portions enclosing the inner surfaces of the long members 40 and 41 between the long members 40 and 41. Make the thickness of the part that wraps both upper surfaces the same,
The thicknesses of the portions enclosing the outer surfaces of the long members 40 and 41 from the outer surfaces of the tooth head 34a of the stator core 34 are made different.

A projection 45 (see FIG. 3), which is a guide receiving portion, which fits into a slot 44 outside the corresponding portion of the blade 39, is provided on both lower surfaces of the ends of both sides of the blade holder 37. Has formed.

On the other hand, the blade guide 46 is arranged as shown in FIG.
As shown in FIGS. 6 and 7, this is provided with a fitting projection 47 which enters between the blades 39 and 39, as shown in FIGS. Further, similarly to the blade 39, a plurality of coil holding pins 49 are symmetrically divided into two groups with the center of the blade guide 46 interposed therebetween, and are held so as to be positioned inside the blade 39, respectively. Adjacent side portions of the coil holding pin 49 are formed on a substantially flat surface 49a, and a gap between the flat surfaces 49a, 49a is set to be substantially the same as a gap between the blades 39.

The blade holder 37 has a pin fitting hole 50 (FIG. 7) corresponding to each of the coil holding pins 49.
On the other hand, each of the coil holding pins 49 has a length that reaches the pin fitting hole 50. Further, the coil holding pin 49 can be attached to and detached from the blade guide 46, and can be replaced with a pin having a different width. In this case, the coil holding pin 49 is provided in the pin fitting hole 5 formed in the blade guide 46.
1 (see FIG. 5 and FIG. 6), which is attached by fitting the base end portion. Even if the width is different, the width of the portion is made the same, and the width of the portion ahead thereof is made different. ing.

Further, as shown in FIG. 8, for example, fastening pins 52 and 53 are formed on both outer side surfaces of the blade holder 37 and the blade guide 46, respectively. 54 has pin 5 at both ends
Notches 55 and 56 are formed to be fitted into the holes 2 and 53. Further, a restraining member mounting hole 57 is formed, for example, at the center of the upper surface of the blade guide 46.
Are fitted.

More specifically, the amount of protrusion of the suppressing member 58 can be adjusted by supporting a support column 60 having the fitting projection 59 at the lower end thereof and screwing a screw rod 62 into a screw hole 61 into the upper end of the support column 60. And a roller 63 attached thereto. In addition, the blade guide 46 is provided with a coil end holding member 64 made of a synthetic resin having an arc-shaped bulging surface 64a in the forward direction.
5 are provided.

Next, a procedure for inserting the stator coil 66 into the slot 44 of the stator core 34 in which the slot insulator 67 is accommodated will be described. First, the stator core 34 is stored and held in the rotating ring 33 of the core holding device 35. Next, the protrusion 45 of the blade holder 37 is formed.
Are fitted into the slots 44 and advanced forward, so that the guide members 42 and 43 of the blade 39 each have a tooth head 34a at a portion where the stator coil 66 of the stator core 34 is inserted.
The blade holder 37 is set inside the stator core 34 so that the
6a is advanced, and the blade holder 37 is connected to the connecting member 38 at the tip thereof by, for example, a bolt 68.

On the other hand, if the position of the pre-wound stator coil 66 is different for each unit coil from one group of coil holding pins 49 symmetrically divided with respect to the center of the blade guide 46 to another group. And set by passing.

Then, the coil holding pin 49 on which the stator coil 66 is set and the blade guide 46 are advanced toward the blade holder 37, and the coil holding pin 49 is set.
Is fitted into the pin fitting hole 50 of the blade holder 37. Accordingly, the stator coil 66 has the blade 39
Also, the fitting projection 47 enters between the blades 39 and 39, and both side holding members 48 move both sides of one group of the blade 39 and both sides of the other group respectively. The blade holder 37 and the blade guide 46 are coupled so as to be sandwiched.

The connecting plate 5 is connected to the retaining pin 52 of the blade holder 37 and the retaining pin 53 of the blade guide 46.
By fitting the notches 55 and 56 of No. 4, the blade holder 37 and the blade guide 46 are kept in the above-mentioned connected state by the connecting plate 54.

Thereafter, by operating the cylinder 36 and gradually retracting the rod 36a, the blade holder 37 and the blade guide 46 are pulled. Then, when the stator coil 66 reaches the inlet of the stator core 34, the retracting movement of the cylinder 36 is temporarily stopped. In this state, the restraining member 58 is fitted into the restraining member mounting hole 57 of the blade guide 46. The engagement member 59 is fitted, and the suppression member 58 is attached to the blade guide 46.

Thereafter, the blade holder 37 and the like are further pulled by restarting the retraction movement by the cylinder 36. Then, the coil holding pin 49 and the blade 39
As shown in FIG. 4, the stator coil 66 is guided to the slot 44 of the stator core 34 from between the coil holding pins 49 and from between the blades 39 (guide members 42 and 43). Inserted. At this time, the suppressing member 58 moves in the same direction while rotating the roller 63 along the tooth head 34a on the side opposite to the blade guide 46 and the like in the radial direction of the stator core 34.

The roller 63 is supported by the support 6 of the restraining member 58.
0 is attached by screwing a screw rod 62, and by adjusting the screwing amount, the protrusion amount can be adjusted.
The rolling can be ensured along the tooth head 34a on the side opposite to the above. In this case, the direction of the roller 63 can be adjusted by the rotation of the fitting projection 59 with respect to the suppression member mounting hole 57.

Then, when the coil end 66a at the front of the stator coil 66 comes out of the stator core 34 as shown in FIG. 2, the retraction movement by the cylinder 36 is once again stopped, and the blade guide 46 is returned to the hand. . Thereafter, the retraction movement by the cylinder 36 is resumed, and when the blade 39 is completely removed from the stator coil 66, the retraction movement by the cylinder 36 is completely stopped. Thus, the predetermined slot 4 of the stator core 34
In order to insert the stator coil 66 into the slot 4 and then insert the stator coil 66 into another slot 44, the rotation angle of the stator core 34 is rotated by rotating the rotation ring 33 of the iron core holding device 35. Change the stator coil 6
6 is inserted into the slot 44 corresponding to the connecting member 38,
Then, the stator coil 66 is inserted in the same manner as described above.

As described above, according to the present configuration, the tip of the coil holding pin 49 is fitted into the pin fitting hole 50 of the blade holder 37 when the coil is inserted. The leading end is not freed like the conventional coil holding pin 17, but is held by the pin fitting hole 50 of the blade holder 37. Therefore, the interval between the coil holding pins 49 is also held by the pin fitting hole 50 of the blade holder 37, and the blade holder 37 and the blade guide 4
When the stator coil 6 advances by being pulled by the rod 36a of the cylinder 36, even if the stator coil 66 is moved rearward due to the insertion resistance due to friction with the stator core 34, the interval between the coil holding pins 49 is increased. It will not be opened. Therefore,
Without increasing the bundle width of the stator coil 66 further,
Since the insertion resistance can be kept small, and the blade holder 37 can be prevented from being lifted or tilted, the stator coil 66 does not become difficult to be inserted, and the productivity can be improved. At the same time, the stator coil 66 can be prevented from being damaged.

Further, as described above, the blade holder 37
Since the side is not lifted or inclined, the bending force unlike the conventional connecting pin 18 is not applied to the coil holding pin 49, and the coil holding pin 49 bites into the pin fitting hole 50. Therefore, it is not difficult or impossible to separate them after coil insertion, and subsequent use can be performed without difficulty.

On both sides of the blade holder 37, projections 45, which are guide receiving portions, are formed. The projections 45 are fitted into the slots 44 of the stator core 34 and are advanced along the slots 44. The setting of the blade holder 37 with respect to the stator core 34 before the coil 66 is inserted can be easily performed by the guide action. In addition, the guide action of fitting the protrusions 45 along the slots 44 of the stator core 34 is effective even when the stator coil 66 is inserted.
Since the displacement of the blade holder 37 is prevented, it becomes more difficult for the stator coil 66 to be inserted into the slot 44 of the stator core 34, so that the productivity can be further improved and the damage of the stator coil 66 can be further reduced. It can be reliably prevented.

Further, the blade guide 46 has a restraining member 5
8 while the cylinder 36 is moving (during insertion of the stator coil 66), the restraining member 58 is attached to the stator core 34.
The tooth head 34 on the side opposite to the radial blade guide 46 and the like
By moving in the same direction along “a”, the floating on the blade guide 46 side can be suppressed. Therefore, the stator coil 66 does not become difficult to be inserted into the slot 44 of the stator core 34 due to the lifting, and the productivity can be improved.

It is to be noted that the suppressing member 58 is a blade holder 3
7, the lifting of the blade holder 37 can also be suppressed, so that the stator coil 66 can be more easily inserted, and the productivity can be further improved.

On the other hand, while the blade holder 37 and the blade guide 46 are being moved by the cylinder 36 (while the stator coil 66 is being inserted), they are held in a connected state by the connecting plate 54, and are held in a connected state. This prevents the stator coil 66 from being inserted into the slot 44 of the stator core 34. Therefore, productivity can be improved without reworking. Further, in this case, since the blade holder 37 and the blade guide 46 do not separate and abnormally contact the stator core 34, the blade holder 37, the blade guide 46, and the stator core 34 are not deformed or damaged. Can be prevented.

The blade 39 is provided with guide members 42 and 43 made of a material having a good sliding property.
4 to guide the insertion of the stator coil 66 into
When the stator coil 66 passes between the blades 39, 39, it only contacts the guide members 42, 43, but does not directly contact the blade 39, and thus the stator coil 6.
Damage to the stator coil 66 due to the blade 39 during insertion 6 can be prevented, and the insulation of the stator coil 66 can be improved. Further, in this case, the blade 39 can be prevented from being damaged by the stator coil 66. Even if the guide members 42, 43 are worn instead, the guide members 42, 43
Since only the long members 40 and 41 need not be replaced, maintenance costs can be reduced.

In addition, in this case, since the guide members 42 and 43 can be replaced with those having different thicknesses, the blades 39 and 39 can be replaced by replacing the guide members 42 and 43 with different thicknesses.
Since the width between them can be changed, the stator coil 66 having a different wire diameter can be handled, and the range of use can be expanded.

Furthermore, the coil holding pin 4
9 can also be replaced with a different width, so that the blades 39, 3 by replacing the guide members 42, 43 described above.
9, the coil holding pins 49, 48
The interval can be adjusted by replacing the coil holding pin 49 with a pin having a different width. Thereby, the insertability of the stator coil 66 can be maintained favorably, and the stator coil 6
6 can be prevented from being damaged, and its insulation can be maintained well.

In the above embodiment, the stator coil 66 is inserted into the stator core 34 of the rotating electric machine. However, the present invention is not limited to this, and the rotor coil is inserted into the rotor core. Can be implemented in a similar manner only by changing the inside and outside. In addition, the present invention is not limited to the embodiments described above and shown in the drawings, and can be implemented with appropriate modifications without departing from the scope of the invention.

[0053]

The present invention is as described above.
The following effects are obtained. According to the coil insertion device of the first aspect, the distance between the coil holding pin and the pin fitting hole of the blade holder is maintained by fitting the tip of the coil holding pin, and the coil is moved rearward during coil insertion. Even if it is brought close, the gap will not be expanded, so that the coil bundle diameter will not further increase, the insertion resistance can be kept small, and the blade holder side will not rise or tilt. I can do it. Therefore, it is not difficult to insert the coil, the productivity can be improved, and the coil can be prevented from being damaged. Further, the bending force unlike the conventional connecting pin is not applied to the coil holding pin, and it is not difficult or impossible to separate them after inserting the coil, so that subsequent use can be easily performed.

According to the coil insertion device of the second aspect, the guide receiving portion provided on the blade holder is fitted into the slot of the iron core to guide it along, so that the blade holder can be easily set on the iron core before the coil is inserted. As well as preventing displacement of the blade holder during coil insertion, making it more difficult for the coil to be inserted into the iron core slot, thus further improving productivity and preventing coil damage more reliably. can do.

According to the coil insertion device of the third aspect, the lifting member suppresses at least the lifting of the blade guide side during the coil insertion, and the coil does not become difficult to be inserted into the slot of the iron core. Can be improved.

According to the coil insertion device of the fourth aspect, the blade holder and the blade guide are connected and held during the insertion of the coil by the fastening member, and they are not separated from each other, so that the coil is inserted into the slot of the iron core. Since the blade holder and the blade guide do not abnormally come into contact with the iron core, the productivity can be improved, and the blade holder and the blade guide can be prevented from being damaged, and the iron core can be prevented from being damaged.

According to the coil insertion device of the fifth aspect, the coil is guided by the guide member made of a material having good slipperiness and inserted into the slot of the iron core, so that the coil does not directly contact the blade. Accordingly, damage to the coil due to the blade during insertion of the coil or damage to the blade due to the coil is prevented, so that the insulation of the coil can be improved and the cost for maintaining the blade can be reduced.

According to the coil insertion device of the sixth aspect, the width between the blades can be changed by replacing the guide member with one having a different thickness, and it is possible to cope with the stator coil having a different wire diameter. Can be used and the range of use can be expanded.

According to the coil insertion device of the present invention, when the width between the blades is changed due to the replacement of the guide material, the distance between the coil holding pins is determined to be different from the width between the coil holding pins. Because it can be adjusted by changing,
Since the insertability of the coil can be favorably maintained and the coil can be prevented from being damaged, the insulation property can be favorably maintained.

[Brief description of the drawings]

FIG. 1 is an overall vertical side view showing one embodiment of the present invention.

FIG. 2 is an overall longitudinal side view in different states.

FIG. 3 is a longitudinal sectional front view of a blade holder part.

FIG. 4 is a longitudinal sectional front view of a part of a blade and a coil holding pin portion.

FIG. 5 is a longitudinal sectional front view of a blade guide portion.

FIG. 6 is a perspective view of a part of a blade guide portion.

FIG. 7 is a bottom view of a part of a blade and a coil holding pin.

FIG. 8 is a cutaway side view from the blade holder to the blade guide.

FIG. 9 is a diagram corresponding to FIG. 1 showing a conventional example.

FIG. 10 is a diagram corresponding to FIG. 2;

FIG. 11 is a diagram corresponding to FIG. 3;

FIG. 12 is a diagram corresponding to FIG. 4;

FIG. 13 is a diagram corresponding to FIG. 8;

FIG. 14 is a diagram corresponding to FIG. 5;

FIG. 15 is a diagram corresponding to FIG. 6;

FIG. 16 is a diagram corresponding to FIG. 7;

[Explanation of symbols]

33 is a rotating ring, 34 is a stator core, 34a is a tooth head, 35 is an iron core holding device, 36 is a cylinder (moving device), 37 is a blade holder, 39 is a blade,
2 and 43 are guide members, 45 is a projection (guide receiving portion), 46
Denotes a blade guide, 49 denotes a coil holding pin, 50 denotes a pin fitting hole, 54 denotes a connecting plate (clamping member), 58 denotes a suppressing member, and 66 denotes a stator coil (coil).

Claims (7)

[Claims] An iron core holding device that holds an iron core so that a rotation angle can be changed, a blade holder that holds a plurality of blades along a tooth head of the iron core, and a plurality of coil holding pins extending parallel to the blade. A blade guide for holding, and a moving device for moving the blade holder in the axial direction of the iron core, wherein a coil is set on the coil holding pin, and the coil is set on the blade from the coil holding pin. Combining the blade holder and the blade guide to
In this state, the blade holder and the blade guide are moved by the moving device so that the coil is inserted into the slot of the iron core.A pin fitting hole is formed in the blade holder, and the coil holding pin is provided. A coil insertion device characterized in that the length of the pin reaching the pin fitting hole is such that the tip of the coil holding pin is fitted into the pin fitting hole. 2. The coil insertion device according to claim 1, wherein guide receiving portions are provided on both sides of the blade holder so as to fit into slots of the iron core and guide the blade holder along the slots. 3. A core holding device for holding a core so that a rotation angle can be changed, a blade holder for holding a plurality of blades along a tooth head of the core, and a plurality of coil holding pins extending parallel to the blade. A blade guide for holding, and a moving device for moving the blade holder in the axial direction of the iron core, wherein a coil is set on the coil holding pin, and the coil is set on the blade from the coil holding pin. Combining the blade holder and the blade guide to
In this state, the blade holder and the blade guide are moved by the moving device so that the coil is inserted into the slot of the iron core. A coil insertion device provided with a suppressing member that suppresses lifting at least on a blade guide side by moving along an opposite tooth head. 4. An iron core holding device for holding an iron core so that a rotation angle can be changed, a blade holder for holding a plurality of blades along a tooth head of the iron core, and a plurality of coil holding pins extending parallel to the blade. A blade guide for holding, and a moving device for moving the blade holder in the axial direction of the iron core, wherein a coil is set on the coil holding pin, and the coil is set on the blade from the coil holding pin. Combining the blade holder and the blade guide to
In this state, the blade holder and the blade guide are moved by the moving device so that the coil is inserted into the slot of the iron core, and the blade holder and the blade guide are connected to each other during the movement by the moving device. A coil insertion device comprising a fastening member for fastening. 5. A core holding device for holding a core so that a rotation angle can be changed, a blade holder for holding a plurality of blades along a tooth head of the core, and a plurality of coil holding pins extending parallel to the blade. A blade guide for holding, and a moving device for moving the blade holder in the axial direction of the iron core, wherein a coil is set on the coil holding pin, and the coil is set on the blade from the coil holding pin. Combining the blade holder and the blade guide to
In this state, the blade holder and the blade guide are moved by the moving device so that the coil is inserted into the slot of the iron core. A coil insertion device provided with a guide member made of a material having a good sliding property for guiding insertion of a coil. 6. The coil insertion device according to claim 5, wherein the guide member is replaceable with one having a different thickness. 7. The coil insertion device according to claim 6, wherein the coil holding pin is replaceable with a pin having a different width.