JPS59172960A - Wedge inserting device - Google Patents

Abstract

PURPOSE:To smoothly and effectively insert a wedge into a hole of a slot of a core with a coil built-in by employing a pusher which is reciprocatingly movable in a radial direction of a core. CONSTITUTION:A pusher 6 is composed to move axially reciprocatingly of a core 2 movable relatively in a radial direction of the core 2 by the own movement or the movement of the core 2. The pusher 6 has pressing units 6a 6c having substantially the same sectional shape as that of the hole of a slot. A wedge 1 is supplied from wedge supplying means to a wedge container 6b, the pusher 6 is inserted into the slot hole of the core 2, the slot hole is further radially moved, thereby inserting the wedge 1 contained in the container 6b into the slot hole.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a device for inserting a wedge into an opening of a slot of a core in which a coil of a rotating electric machine is incorporated.

[Prior art]

In rotating electric machines, slots provided for incorporating coils into the core are classified into open slots, semi-closed slots, fully closed slots, etc., depending on their cross-sectional shape. A wedge is inserted into the opening of the open slot or semi-closed slot to allow the coil, insulating layer, insulating wedge, etc. to escape from the slot and to protect them.

On the other hand, in order to improve the efficiency of rotating electric machines, many methods have been used to increase the space factor of conductors in slots. Although the slot opening of a rotating electric machine does not substantially contribute to improving the space factor of the conductor inside the slot, in order to equalize the magnetic flux distribution in this gap, the wedge to prevent escape of the coil and insulating layer is made of magnetic material. It has long been known that characteristics such as efficiency and noise can be improved by doing so. However, although magnetic wedges are used to some extent in slightly larger rotating electric machines, they are rarely used in general-purpose rotating electric machines.

One of the reasons why magnetic wedges are rarely used is that they are difficult to insert.

That is, due to its characteristics, magnetic wedges contain a large amount of iron powder, so the material itself is generally brittle, and there is a high risk of breakage during insertion. Furthermore, in order to increase the conductor space 6τ[ in the slot, the slot opening is generally not provided with sufficient space for inserting the magnetic wedge.

Therefore, it is not easy to insert the magnetic wedge into the slot opening, and there is a need for an apparatus that can smoothly and reliably insert the magnetic wedge into the slot opening. Conventionally, a magnetic wedge insertion method has been proposed in Japanese Patent Laid-Open No. 56-88637.

In this method, a means such as an electromagnet that can increase magnetic force is incorporated into the insertion jig as needed, and with the stator coil energized, the magnetic wedge is attracted to the insertion jig using magnetic force, and the magnetic wedge is inserted into the slot opening. After insertion, the magnetic force of the insertion jig is turned off and the magnetic wedge is released to complete the insertion of the magnetic wedge.

However, when using this method, the magnetic wedge is inserted while the coil is constantly energized, making the insertion process dangerous.Also, the core and the magnetic wedge may come into contact during the insertion process. In addition, powder from the magnetic wedge scraped by the core falls into the core or coil and is attracted, causing defects. Furthermore, it is disadvantageous to incorporate an electromagnet or the like into a moving insertion jig because it increases the size and complexity of the device. One more thing to mention is that in order to prevent the magnetic wedge from moving even when the insertion jig, which magnetically attracts the inserted magnetic wedge to the slot opening, retreats, the magnetic wedge must have a gap between the cores, e.g. Since it is inserted with 0.1 to 0.2 mm, when the insertion jig finishes inserting the magnetic wedge, the insertion jig itself should be able to bend uniformly to the core inner diameter by about 0.1 to 0.3 + mm. If not, even if the magnetic force of the insertion jig is turned off, the magnetic wedge will not stop completely in place but will be pulled back slightly or considerably due to the indirect magnetic force from the magnetic core in the insertion jig. It will be. Therefore, it is necessary to make the insertion jig bend, but such an uncertain structure is not suitable for a field that requires precision.

[Purpose of the invention]

The object of the present invention is to provide a coil of a rotating electric machine incorporated in the Unexamined Patent Publication IU
rU59-1729GO (3) To provide a wedge insertion device that can smoothly and reliably insert a wedge into an opening of a slot of a core.

[Summary of the invention]

The wedge insertion device according to the present invention receives the wedge and reciprocates in the axial direction of the core, and allows relative reciprocating radial movement of the core past the slot into which the wedge is inserted by its own movement or the movement of the core. It has a bush that is said to be
The bushing has a suppressing part that is long in the axial direction of the core and has a cross-sectional shape that is almost the same as the cross-sectional shape of the slot opening, and a suppressing part that is slightly longer than the length of the slot opening and the wedge is located in the middle of the suppressing part. A wedge storing portion is provided with a slightly deep recess corresponding to the thickness of the wedge, and the pressing portion of the butcher that receives the wedge from the wedge supply means is inserted into the slot opening from the axial end, and the wedge to be stored reaches the slot opening. then moving the bushing radially away from the slot opening, and subsequently moving the bushing in opposite axial and radial directions of the core;
The wedge insertion device is characterized in that it has a drive and control means 9-1 for returning the wedge storage portion to the wedge receiving position.

Another invention wedge insertion device according to the present invention comprises (a
) A core holding means that holds the core meticulously horizontally, allows the core to move in the vertical direction, and is capable of indexing and positioning the slots of the core with an interval of 1 pitch. It has a suppressed part that is long in the axial direction of the core and has substantially the same cross-sectional shape, and in the middle of the suppressed part is a slot opening and a recessed wedge storage part that is slightly longer than the length of the wedge and slightly deeper than the thickness of the wedge. a provided button; (a guide and drive means for reciprocating the C1 button in the axial direction of the core; and (d) a position where the button is separated from the core;
This wedge insertion device is characterized in that it mainly serves as a wedge supply means for supplying a wedge to a wedge storage portion of a bushing.

Page 10 In a preferred embodiment of the wedge insertion device according to the present invention, the wedge is made of a magnetic material, and in a further preferred embodiment, a magnet is provided in the wedge storage portion of the button.

In a preferred embodiment of the wedge insertion device according to the second aspect of the present invention, a buttonhole guide is provided which surrounds the buttonhole and is constructed on the base of the buttonhole and has a groove into which the suppressing portion of the buttonhole can be inserted. By Butusha Guide,
The wedge stored in the wedge storage portion is guided to the slot opening while being prevented from moving or falling off in the width direction during movement of the bushing.

In another preferred embodiment of the wedge insertion device of the second invention according to the present invention, the wedge feeding means sends one wedge to the wedge feeding hopper and the sheath row each time the bushing returns to the wedge receiving position. In another preferred embodiment, the wedge supplying means is a parts feeder that separates the wedges and supplies them to the wedges at the wedge receiving position.
A magazine device that stores the required number of wedges at equal pitches.
1 j , ir Before the bushing returns to the wedge receiving position, the wedge storage part moves one pitch, and the next wedge is guided to the position of the wedge storage part of the bushing, and as the bushing moves, the suppressing part of the bushing is activated. This allows the wedge to be transferred from the magazine device to the pusher.

In yet another preferred embodiment of the wedge insertion device according to the invention, the slot of the core is a semi-closed slot or an open slot.

[Embodiments of the invention]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The wedge insertion device according to the present invention will be described in detail below with reference to drawings of embodiments. FIG. 1 is a front view (a) and a side view (b) of an embodiment of a wedge to which the device of the present invention is applied;
Fig. 2 is a perspective view of an embodiment of one slot portion of the core of a rotating electrical machine to which the device of the present invention is applied, and Fig. 3 is a perspective view of the position of the button of the embodiment of the device of the present invention with respect to the core of the rotating electrical machine. FIG. 3 is a perspective view showing the relationship.

The wedge 1 shown in FIG. 1 is an elongated member with a convex cross section. Wedge 1 is shown in Figures 2 and 4.
72961J (4) Sea urchin, inserted into the opening of the semi-closed slot 2b of the core 2,
The coil 3 inserted into the slot 2b, the insulating layer 4 surrounding the slot, and the insulating wedge 5 are pressed down, and are then locked by the toothed end 2a of the thrower 2b to protect the coil 3, etc. , these slots 2b are prevented from escaping. Therefore, the wedge 1 has a cross-sectional shape that is almost the same as the cross-sectional shape of the opening of the thrower 2), and its length is
is approximately the same as the axial length of the slot 2b. The thickness t2 and length β2 of the wedge 1 naturally depend on the size of the rotating electric machine into which it is inserted, especially the slot, but generally the thickness is determined by the thickness of the bottom part, the width of which is less than 10 m, and the length of which is less than 100 m. There are many things. Further, in the device of the present invention, the effect is great when the wedge 1 is made of a magnetic material and used as a magnetic wedge.

Referring to FIG. 3, the bushing 6 is moved in the axial direction of the core 2 (
(1) and (2) directions). That is, the bushing 6 is placed on the guide rail 8 on the guide stand 9.
It is fixed to a fixing base 7 which is movably mounted in the directions 1 and 2, with its longitudinal direction aligned with the direction of page 1 and page 013. The bushing 6 has pressing parts 6a and 6C that are long in the axial direction of the core 2 and have substantially the same cross-sectional shape as the opening of the slot 2b, and therefore the cross-sectional shape of the wedge 1. its length x
l is slightly longer than the length L2 of wedge 1 (empirically, 1
□−L2×1■ is good. ), the wedge accommodating portion 6b is provided in the form of a recess, the depth tl of which is slightly deeper than the thickness t2 of the wedge 1 (appropriately 240.1 mm). The position of the bushing 6 shown in FIG. 3 is the wedge receiving position, and in this position, the bushing 6 receives the wedge 1 in the direction of the arrow (2) into the wedge storage portion 6b by a wedge supplying means (not shown). Although not shown, when the wedge 1 is a magnetic wedge, a magnet is provided in the wedge storage part 6b,
When the magnetic wedge is held attracted by a magnet, the holding posture of the wedge can be kept constant, and the wedge 1 does not fall off while the button shear 6 is moving. There is no need to provide a substitute. Furthermore, the wedge can be inserted regardless of the orientation of the opening of the slot 2b, and therefore the core 2 of the rotating electrical machine may be in either a horizontal or vertical orientation when the wedge is inserted. The magnet provided in the wedge storage portion 6b may be a permanent magnet.

The core 2 is held by a holding means (not shown) that can be indexed and positioned in the circumferential direction (direction of the arrow ■).
When moved in the direction of the arrow ■, the pressing portion 6a is held at a position where it enters the slot 2b into which the wedge 1 is to be inserted.

Furthermore, the bushing 6 or the core 2 is movable in the vertical direction, that is, in the directions of the arrows (■) and (2), by a drive source (not shown). Therefore, the bushing 6 is placed in the core 2 in the vertical plane.
Relative movement is possible by drawing a rectangular locus (in the direction of ■→■→■−■). Of course, the movement in the {circle around (2)} direction and ■direction (■) may be performed simultaneously to create a triangular locus. As a result, the bushing 6 that has received the wedge from the wedge supply means is moved in the direction of the arrow (■), the suppressing part 6a is inserted into the opening of the thrower) 2b, the wedge 1 to be stored is brought into the slot opening, and the wedge 1 is After leaving the bushings 6 in the slot openings 15 and 15 and separating them from the slot openings in the direction of the arrow ■, move the bushings 6 in the directions of the arrows ■ and ■, and return the bushings 6 to the original wedge receiving position. , ready to insert the next wedge into the next slot opening. The process of inserting the wedge 1 into the slot opening will be described in more detail with reference to FIGS. 4 and 5.

Figure 5 (al, (bl, (C1, (dl, (el)
Figure 4 is a schematic sectional view showing the relative position of the core and bushing in each process of wedge insertion.
- It is a sectional view taken along the line R.

The ta1 diagram in FIG. 5 is the state corresponding to that in FIG. 3 (however, the wedge 1 is already mounted on the bushing 6). In Figure Cb1, the button 6 moves in the direction of the arrow ■, and the pressing part 6a of the button 6
is the coil 3. in the slot 2b. Insulating layer 4, insulating wedge 5
etc. to the bottom of the slot 2b, then enter the opening of the thrower) 2b, and insert the mounted wedge 1 into the slot 2b.
(See Fig. 4).

JP-A-59-172960 (5) in which the bushing 6 moves and accommodates the wedge 1 of the bushing 6. The state in which the wedge storage portion 6b matches the opening of the thrower 2b is shown in Figure C1. As shown in the figure, the bushing 6 descends as indicated by the arrow (■).Since the length of the wedge storage portion 6b of the bushing 6 is slightly longer than the length of the opening of the wedge 1 and the slot 2b, the bushing 6 descends as shown by the arrow (■). 6 can be lowered.At this time, since the wedge 1 is locked to the tooth end 2a of the thrower) 2b,
(thrower) 2b. Wedge 1
Even if a magnet is provided in the wedge storage part 6b with the magnetic wedge as a magnetic wedge, the magnetic force of this magnet is weak enough to prevent the lightweight wedge 1 from falling off, so the arrow ■
There is almost no resistance to movement in the direction. When the bushing 6 finishes moving in the direction of the arrow ■, the bushing 6 moves in the direction of the arrow ■ opposite to the arrow ■, as shown in figure (e).
Although not shown, it is subsequently or simultaneously moved in the direction of the arrow (2) opposite to the arrow (2) (see FIG. 3), and returned to the wedge receiving position shown in (a).

On the other hand, the core 2 rotates in the direction of the arrow ■ by one pitch of the slot, and prepares to receive the wedge 17 □ into the next slot. Since the reference numerals of the constituent members are omitted in FIG. 5, please refer to FIG. 2.3.4.

Another embodiment of the wedge insertion device according to the present invention will be described based on FIG. This device mainly includes a core holding means, a bushing, a bushing driving means, a wedge feeding means, and a bushing guide. A mounting base 24 on which a core holding means, a bushing, a wedge supply means, and a bushing guide are attached.
is attached to the mount 25, and the button driving means is attached to the mount 25.
It is housed within 4.

The core holding means includes a core receiver 149 and indexing mechanisms 15 to 18.
, core holder 19. The drive source 20, guide rail 23, etc. are also included. That is, the core holder 19 is held movably vertically (in the direction of the reciprocating arrow) by a support frame provided on a pedestal 25 via a guide rail 23, and is driven by a drive source 20. A core receiver 14 is attached to the core holder 19 via indexing mechanisms 15 to 18, and the core 2 is fitted into the core receiver 14. There is a general-purpose groove 2C (see Fig. 7) on the outer periphery of the core 2, and the groove 2C is fitted into the key 14a of the core receiver 14, and the core 2 is inserted into the wedge from the side opposite to the insertion of the wedge 18-7r1. It is fixed by clamping it to the core receiver 14 using a shifter or the like. Indexing mechanism 15~
18, a spur gear 15 is fixed to the outer periphery of the core receiver 14, and this spur gear 15 is connected to a small gear 16.
A pinion (not shown) is attached to the same shaft as the small gear 16, and this pinion meshes with a rack in the jig 17.

The jig 17 is adapted to be moved by an indexing drive source 18. Furthermore, the pinion (not shown) is equipped with a one-sided clutch, and is configured to transmit only a certain direction of rotation to the small gear 16. When the insertion of the wedge into one slot is completed and the button is removed from the slot opening, the indexing drive source 18 is activated and the jig 17. Small gear 16. The spur gear 15 is moved and rotated, the core receiver 14 is rotated, the core 2 is rotated by one pitch of the slot, and indexing and positioning are performed so as to guide the next slot to the wedge insertion position.

In order to further improve the reliability of positioning, after the indexing is completed by the above-mentioned indexing mechanism, the core receiver 14 or the spur gear 15 is
Of course, it is sufficient to insert a shot pin (not shown) into the hole. Further, the above-mentioned indexing mechanism is just one example, and various methods such as a method using a stepping motor, a method using a worm and gears, a method using a cam, etc., can be adopted.

The buttons and button drive means in the device of FIG. 6 are essentially the same as those in the device of FIG. That is, the mount 24 is fixed to the mount 25, and the guide stand 9 is fixed to the mount 24. On the guide stand 9 is a fixed stand 7.
is mounted so as to be movable in the axial direction of the core (in the direction of the reciprocating arrow) via the guide rail 8. The drive and control means for the fixed base 7 are housed within the mounting base 24. A bushing 6 is fixed to the fixing base 7, and the structure of the bushing 6 is the same as that in the apparatus shown in FIG.

The wedge supply means is a wedge supply hopper 13. Line feeder 12. This is a parts feeder consisting of separators 10 and 11, and is fixed to a mounting base 24. The wedges 1 are automatically fed in a line from a wedge supply hopper 13 to a line feeder 12. Furthermore, the separator 10.11 allows the bushing 6 to receive the wedge position.
60 (6) Each time the machine returns to the position, one wedge 1 is fed to the bushing 6.

The apparatus shown in FIG. 6 is further provided with a bushing guide 21. The bushing guide 21 is shown in enlarged detail in FIGS. 7 and 8. While the pusher 6 carrying the wedge 1 is being moved toward the slot of the core 2, the wedge may move in the width direction on the wedge storage portion 6b of the pusher 6 due to external vibration or the like, and may fall off. is expected. In order to prevent this, a bushing guide 21 is provided. In order to prevent the wedge 1 from moving or falling off, it is necessary to guide the wedge 1 from the time the pusher 6 starts to transfer the wedge 1. The button guide 21 surrounds the button 6 and is fixed to the mounting base 24, and has a groove in the moving direction of the button 6 into which the suppressing portion 6a of the button 6 can be inserted. <The suppressing portion 6a of the bushing 6 on which the wedge 1 is mounted is fitted into the groove of the bushing guide 21, and as the bushing 6 moves, the wedge 1 is fitted into this groove to prevent the wedge 1 from moving or falling off. Since the bushing guide 21 overhangs the bushing 6, it is not possible to guide the wedge 1 to the end face of the core 2, but at least when the rear end of the wedge 1 passes through the groove of the bushing guide 21. ,〈The tip of rust 1 is more than 5 slots 2
It is desirable that it be inserted into the opening of b.

In order to stabilize the attachment of the wedge 1 to the opening of the clog 1-2b, an adhesive or the like is applied to the wedge 1 in advance using a dispenser or the like. When the above-mentioned button guide 21 is provided, it is possible to form the groove of the button guide 21 on the wedge 1 being transferred, and there is a space in which the best location can be selected depending on takt time, liquid material, etc.

The operation of inserting the wedge into the slot opening of the device shown in FIG. 6 is basically the same as that of the device shown in FIG. .

Another embodiment, which differs from the apparatus shown in FIG. 6 only in the wedge supply means and has the same other components, will be described with reference to FIG. 9. In this embodiment, the wedge supply means stores 22 the required number of wedges at equal pitches.

This is a magazine device. Details of the magazine device in Part 10
It is shown in FIG. The magazine device is mounted on a mount 24 and screws 26. Magazine section 27. Magazine 28.
Drive source 29. Guide rail 30 etc. Magazine 2
8 has grooves 28' provided at equal intervals equal to the number of slots,
A wedge 1 is accommodated in each of the six grooves 28'. The magazine 28 is attached to the magazine section 27, and the magazine section 28 is attached to the magazine section 27.
Reference numeral 7 is configured to move along a guide rail 30 by a screw 26 to which rotation is transmitted from a driving source, such as a stepping motor 29, by a timing belt or the like. It is possible to insert a shot bottle (not shown) into the drive mechanism of the magazine section 27. The button 6 moves from the wedge receiving position toward the core 2, and the suppressing part 6C moves into the groove 2 of the magazine.
8, the magazine part 27 moves by one pitch of the groove 28', the next groove 28' is guided to the wedge receiving position, and the pusher 6 inserts the wedge 1 into the slot 2b of the core and moves it to the wedge receiving position. When restored, the wedge storage portion 6b of the button shutter 6 and the groove 28' that accommodates the wedge 1 of the magazine 28 are opened.
The positions of match. In this case, directions ■ and ■23.

The return movements of the bushings 6 (see FIG. 3) must not be performed simultaneously, but must be moved in the order of direction ① and then ②. When the pusher 6 is moved in the {circle around (2)} direction to insert the next wedge 1, the pressing portion 6c presses the wedge 1 and moves the wedge 1 from the magazine 28 to the pusher 6. The magazine device can supply wedges for one product at a length that sets the magazine according to the type of product, so it is extremely effective for products in small production lots. Furthermore, by changing the magazine 28, setup for other models can be easily performed. FIG. 11 also shows the positional relationship between the magazine 28 and the bushing 6, and the gap between the bushing 6 and the magazine 28 is at least 0.
It is desirable to secure 1m+.

The wedge feeding means is not limited to the means illustrated in FIGS. 6 and 9, but may include means using taped 7-ply material, feeding from other places by loading and unloading, etc. It is also possible to use

In the above embodiment, the slot of the core is
9-172960 (7) Although the case where the slot is a closed slot has been described, the device of the present invention can also be used in a case where the slot is an open slot. Of course, this is exactly the same as in the case of slots. An embodiment in which a wedge is attached to an open slot by the device of the present invention is shown in FIGS. 12 and 13. Since the structure is generally the same as that of the semi-closed slot, repeated explanation will be omitted.

〔Effect of the invention〕

When using the wedge insertion device of the present invention, the wedge can be automatically and smoothly inserted into the opening of the slot of the core in which the coil of the rotating electric machine is incorporated, and the number of man-hours can be reduced. In particular, fragile magnetic wedges made of magnetic material are equally smooth.

Since automatic insertion can be ensured and the wedge etc. will not be damaged, the quality and reliability of rotating electrical machinery products can be improved. Furthermore, it is effective for mass production.

Front view and side view of the embodiment, Figure 2 is from Book 25,
-,.

FIG. 3 is a perspective view of an embodiment of one slot portion of the core of a rotating electrical machine to which the device of the invention is applied; FIG. The perspective view, Fig. 4 is the same as Fig. 5 (al, (bl, (cl, (dl)
.

[e] is a schematic sectional view showing the relative position of the core and the bushing in each process of wedge insertion; FIGS. 6 and 9 are perspective views of different embodiments of the wedge insertion device of the present invention; FIGS. Figure 8 is an enlarged perspective view and cross-sectional view showing the relative position of the button guide with related members in the device shown in Figure 6, and Figures 10 and 11 are the magazine section and magazine of the magazine device in the device shown in Figure 9. Enlarged front view and first
BB' line arrow sectional view in Figure 0, Figure 12 and Figure 1
3 are sectional views of different embodiments of open slots in the core of a rotating electric machine fitted with a wedge in the device of the invention; FIG.

1... Wedge, 2... Core, 2a... Tooth end, 2b
...Slot, 2C...Groove, 3...Coil, 4.
...Insulating layer, 5...Insulating wedge, 6...Butsusha,
6a, 5c...pressing portion, 26! ,.

6b...Wedge storage unit, 7...Fixing stand, 8...Guide rail, 10.11.12.13...(Parts feeder), 14.15, 16, 17, 18, 19.23
... (core holding means), 21 ... button guide,
25... Frame, 26.27.28.29°30...
(Magazine device).

Agent: Patent Attorney Masami Akimoto Figure 1 Second cause 3rd N So Ah, 4 reasons 5th cause (C) (small (e) 6th vA Figure 7 Figure 8 9th garden Section 10 figure Figure 12 Figure 13 Continuation of page 1 0 shots clear person Hiroshi Saito 292 Yoshida-cho, Totsuka-ku, Yokohama Production technology research company Hitachi, Ltd. Inside the office 0 shots by Kiyoshi Iwabuchi 7-1-1 Higashi-Narashino, Narashino City Name: Hitachi, Ltd. Narashino Engineering Inside the venue 0 shots clear by Sumio Hamaguchi 7-1-1 Higashi-Narashino, Narashino City Name: Hitachi, Ltd. Narashino Engineering Inside the venue 0 shots: Kazunori Matsubara 7-1-1 Higashi-Narashino, Narashino City Name: Hitachi, Ltd. Narashino Engineering Inside the venue 324-

Claims (1)

[Scope of Claims] 1. A device for inserting a wedge into the opening of a slot in a core in which a coil of a rotating electric machine is installed, which receives the wedge, moves the wedge back and forth in the axial direction of the core, and prevents the wedge from moving itself or the core. The button has a button which allows relative reciprocating movement in the radial direction of the core past the slot into which the wedge is inserted, and the button has a cross-sectional shape that is substantially the same as the cross-sectional shape of the opening of the slot. It has a suppressing part that is long in the axial direction, and in the middle of the suppressing part, a recessed wedge storage part that is slightly longer than the length of the slot opening and the wedge and slightly deeper than the thickness of the wedge is provided. Insert the suppressing part of the pusher that has received the wedge into the slot opening from the axial end, and when the wedge to be stored reaches the slot opening, the pusher is separated from the slot opening in the radial direction, and then the pusher is inserted into the core. 1. A wedge insertion device comprising drive and control means for moving in opposite axial and radial directions and returning the wedge storage portion to a wedge receiving position. 2. The wedge insertion device according to claim 1, wherein the wedge is made of a magnetic material. 3. The wedge insertion device according to claim 2, wherein a magnet is provided in the wedge storage portion of the bushing. 4. In a device for inserting a wedge into the slot opening of a core in which a coil of a rotating electric machine is incorporated, the core is held with its axis horizontally, and the core is movable in the vertical direction;
In addition, the interval between the core slots is determined as 1 pitch.
It has a core holding means that can be positioned, and a pressing part that is long in the axial direction of the core and has a cross-sectional shape that is almost the same as the cross-sectional shape of the slot opening, and a pressing part that is slightly longer than the length of the slot opening and the wedge in the middle of the suppressing part. A bushing having a wedge storage portion that is long and has a recess slightly deeper than the thickness of the wedge, a guide and driving means for reciprocating the bushing in the axial direction of the core, and a wedge storage portion of the bushing at a position where the bushing is separated from the core. 1. A wedge insertion device comprising: a wedge supply means for supplying a wedge; and a wedge insertion device. 5. 5. The wedge insertion device according to claim 4, wherein said wedge is made of a magnetic material. 6. The wedge insertion device according to claim 5, wherein a magnet is provided in the wedge storage portion of the bushing. 7. Surrounding the bushing and erected on the base of the bushing,
A button guide having a groove into which the suppressing portion of the button can be inserted is provided, and the button guide prevents the wedge stored in the wedge storage portion from moving in the width direction or falling off while the button is moving. 6. The wedge insertion device according to claim 4, wherein the wedge insertion device is adapted to be guided into the slot opening. 8. The wedge supply means is a parts feeder that separates the wedges sent in a line from the wedge supply hopper one by one and supplies them to the wedge at the wedge receiving position each time the wedge returns to the wedge receiving position. A wedge insertion device according to claim 4 or 5. 9. The wedge supply means is a magazine device that stores the required number of wedges at equal pitches, and before the wedge returns to the wedge receiving position, the wedge storage section moves one pitch, and the next wedge is placed in the wedge storage section of the button. 6. The wedge insertion device according to claim 4 or 5, wherein the wedge is guided to the button position and as the button moves, the wedge is moved from the magazine device to the button by actuation of a pressing portion of the button. 10. The wedge insertion device according to claim 4 or 5, wherein the slot of the core is a semi-closed slot or an open slot.