JPH1014182A - Stator coil manufacturing system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stator coil manufacturing system in which the stripping dimension of insulation coating can be kept constant and the insulating function at other part of the coil is prevented from lowering while enhancing the efficiency of stripping work significantly. SOLUTION: In a winder where a strand wound around a drum is rewound therefrom and wound around a coil former by means of a winder, a means 16 interposed between the drum and the winder 6 strips the insulation coating of the strand from a specified position thereof during the winding work. In this regard, the stripping means 16 preferably applies a rotary brush 10 against the strand from the vertical direction and the lateral direction. Furthermore, the stripping means 16 preferably shifts the applying time of the rotary brush 10 depending on the passing speed of the strand.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for manufacturing a stator coil capable of peeling off an insulating film at a predetermined position of a wire during winding.

[0002]

2. Description of the Related Art FIG. 12 shows a stator coil 1 used in a motor as a rotating electric machine. Such a stator coil 1 is manufactured as follows. First, FIG.
As shown in FIG. 3, an enameled copper wire 5 whose surface wound around a drum 3 is covered with an insulating film 4 by a stator coil winding device 2 is rotated by a winding machine 6 in a sea-shell shape (substantially trapezoidal shape). ) Or an oval (elliptical) form 7 (referred to as a planar coil 8). At that time, FIG.
As shown in (2), when placed in a stator core (not shown), both ends of the enameled copper wire 5 wound around the planar coil 8 are extended as a lead-out portion 9 to connect the stator coils 4 to each other. ing. Then, the planar coil 8 is removed from the former 7 of the stator coil winding device 2 by an operator.

[0003] Subsequently, the insulating coating 4 of the outlet 9 is shown in FIG.
As shown in FIG. 5, the operator holds the product in his hand and removes a predetermined size with the rotating brush 10. Alternatively, as shown in FIG. 16, the substrate is immersed in the stripping liquid 11 to remove a predetermined dimension. Then, after forming into a tortoiseshell shape by a forming machine (not shown), a portion other than the outlet portion 9 is covered with a mica tape 12 and completed.

[0004]

The above method has the following disadvantages. First, since the insulating film 4 is peeled off by the operator applying the rotating brush 10 to the outlet 9 of the planar coil 8 or dipping it in the peeling liquid 11, the dimension is incorrectly deviated from the designated one. The position may be peeled off, and the work of peeling off the insulating coating 4 may be incomplete.

[0005] Further, an operator temporarily removes the planar coil 8 from the former 7 of the stator coil winding device 2, and subsequently peels off the insulating coating 4 of the lead-out portion 9 with a rotating brush 10 or a peeling liquid 11. As a result, the operator mistakenly
May cause damage to the insulation function. Further, the above-mentioned operation of peeling off the insulating coating 4 of the outlet 9 by the operator is very inefficient because the operation is performed manually.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to make it possible to always keep the peeling dimension of the insulating film constant, to prevent a decrease in the insulating function of other parts of the coil, and to provide a stator coil with extremely high peeling efficiency. To provide a manufacturing apparatus.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention provides a winding apparatus which winds a wire by a winding machine while unwinding a wire wound around the drum. By means of the film stripping means installed between the winding machines,
During the winding, the insulating coating at a predetermined position of the strand is peeled off. Then, unlike the case where the worker peels off by hand, the peeling dimension can always be kept constant, and the insulating coating can be satisfactorily removed. Also, since the coil is not easily carried around from the winding operation to the peeling operation, the possibility of damage to the coil is significantly reduced, and the deterioration of the insulating function of the coil can be prevented. Further, the operations from the winding operation to the peeling operation can be performed automatically, and the efficiency is very good. (Claim 1) At this time, it is preferable that the rotating brush is pressed in two directions, that is, the vertical direction and the horizontal direction of the strand, in the film peeling means. Then, the peeling of the side surface can be satisfactorily performed even on the copper wire having the rectangular cross section. (Claim 2) It is more preferable that, in the film peeling means, the application time of the rotating brush pressed from two directions is shifted according to the passing speed of the strand. This allows
The peeling dimension of the copper wire having a rectangular cross section is the same as the upper and lower surfaces and the side surface, and is more stable. (Claim 3) It is preferable that the film peeling means includes a sealing means for sealing the film peeling means, and a suction means for sucking the peeling powder floating in the sealing means. Thereby, the peeling powder is less likely to be caught in the coil, and deterioration of the insulating properties can be prevented. (Claim 4) It is more preferable that the film peeling means further includes a removing means for removing peeling powder adhered to the strand behind the rotating brush. Then, it is possible to further prevent the separation powder from being caught in the coil. (Claim 5)

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. First, FIG. 1 shows a front view of the entire stator coil manufacturing apparatus 2, and FIG. 2 shows a plan view of the stator coil manufacturing apparatus 2. The stator coil manufacturing apparatus 2 includes a drum holding unit 13 that holds the drum 2 around which the enameled copper wire 5 is wound, a slack removing unit 14 that removes the slack of the enameled copper wire 5 released from the drum 2, A guide means 15 for guiding the path of the enameled copper wire 5, an insulating film stripping means 16 positioned on the path of the enameled copper wire 5, and a wire clamp means 17 for holding the first end of the enameled copper wire 5. , And a winding machine 6 for rotating a winding form 7.

As shown in FIG. 3, the drum holding means 13 is provided with a servo motor 19 on a shaft 18 through which the drum 3 passes.
Are connected. Further, the slack removing means 14 has a guide wheel 20 for passing the enameled copper wire and a fulcrum 21 for swinging the guide wheel 20. The guide wheel 20 and the fulcrum 21 are connected by an arm 22. Further, a cylinder 23 to which a fluid having a certain set pressure is supplied is attached to an end of the arm 22 different from the guide wheel 20 with the fulcrum 21 interposed therebetween.

The guide means 15 includes a slack removing means 14 in the middle of the passage of the enameled copper wire 5 and an insulating film peeling means 16.
There is a first guide means 24 provided between the winding means 6 and a second guide means 25 provided between the insulating film stripping means 16 and the winding machine 6. The enameled copper wire passes between the roller groups 26. The roller group 26 moves vertically (arrows X1 and X2) and left and right (arrows Y) according to the cross-sectional shape of the enameled copper wire 5.
Only one roller can be moved in the (1, Y2) direction. (Only the vertical movement mechanism is shown in FIG. 4.) As shown in FIG. 5, the insulating film peeling means 16 includes a rotating brush 10 using a material such as a metal wire, and a driving device for rotating the rotating brush 10. It comprises a motor 27, a cylinder 28 for pressing the rotary brush 10 against the enameled copper wire 5 with a pressing force in the vertical direction (arrows X1, X2), and a guide bar 29 for guiding the moving direction of the rotary brush 10 by the cylinder 28. Have been.

As shown in FIG. 6, the wire clamp means 17 is configured such that a clamp piece 31 provided at the tip thereof can be moved vertically (arrows X1, X2) by a cylinder 30. In addition, a motor 33 connected to a feed screw 32 attached to the wire clamp mechanism 17 can be moved in the front-rear direction (arrows Z1 and Z2) under the guidance of a guide. Further, as shown in FIG. 7, the winding machine 6 can rotate the winding form 7 by a servomotor 36 connected to a main shaft 35 to which the winding form 7 is attached.

Next, the operation of the stator coil manufacturing apparatus having the above configuration will be described. First, the drum 3 around which the enameled copper wire 5 is wound as shown in FIG. 1 is inserted into the shaft 18 of the drum holding means 13. Then, one end of the enameled copper wire 5 is pulled out, passed through the guide wheel 20 of the slack removing means 14, passed through the roller group 26 of the first guide means 24, passed through the rotating brush 10 of the insulating film peeling means 16, and finally The end of the enameled copper wire 5 is clamped by the cylinder 30 by bringing it to the position of the clamp piece 31 of the wire clamp means 17. At this time, the roller group 26 of the first guide means 24 is adjusted to a gap corresponding to the cross-sectional shape of the enameled copper wire 5.

Next, the cylinder 2 of the insulating film peeling means 16
2 is made to slide, and the rotating brush 10 is brought into contact with the enameled copper wire 5 with a constant pressing force. At the same time, the rotating brush 10 is rotated by the driving motor 27. Then, the motor 30 of the wire clamp means 17 is driven, and the wire clamp means 17 is moved in the front and rear direction (arrows Z1, Z
Move to 2). At this time, the servo motor 19 of the drum holding means 13 is
The enameled copper wire 5 is sent out from the drum 3 in synchronization with the movement of 0. At this time, since the rotating brush 10 is in contact with the enameled copper wire 5, the insulating coating 4 of the enameled copper wire 5 sent by the forward and backward movement of the wire clamp means 17 is peeled off.

Then, after the enameled copper wire 5 is fed by a certain size to be peeled, the cylinder 22 of the insulating film peeling means 16 is slid, and the rotating brush 10 is separated from the enameled copper wire 5. At the same time, the rotation of the drive motor 26 is stopped and the rotation of the rotary brush 10 is stopped. Drum 3
The peeling of the insulating coating 4 at the end of the enameled copper wire 5 wound around is completed.

Subsequently, the tip of the enameled copper wire 5 is unclamped by the cylinder 30 of the wire clamping means 17,
The tip of the enameled copper wire 5 is further pulled out, passed through the roller group 26 of the second guide means 25, and the exfoliated part 9 finally peeled is clamped on the former 7. Then, the servomotor 30 of the winding machine 6 is rotated, and the enameled copper wire 5 is wound around the winding form 7. At this time, the servo motor 19 of the drum holding means 13 sends out the enameled copper wire 5 from the drum 3 in synchronization with the rotation of the former 7 of the winding machine 6.

Immediately before the winding of the enameled copper wire 5 on the former 7 is completed by the specified number of times, the plane coil 8 at the end of the winding calculated in advance by the control device (not shown) is used.
When the position where the insulating coating 4 of the lead portion 9 of the insulating coating 4 is to be peeled passes through the rotating brush 10 of the insulating coating removing means 16, the cylinder 23 is slid and the rotating brush 1 is attached to the enameled copper wire 5.
0 is brought into contact with a constant pressing force. At the same time, the rotating brush 10 is rotated by the driving motor 27. At this time, the insulating coating 4 of the enameled copper wire 5 sent by the rotation of the former 7 is peeled off.

The rotational speed of the servo motor 30 of the winding machine 6 is controlled by a control device (so that the feed speed of the enameled copper wire 5 becomes constant in order to stabilize the peeling state of the insulating coating 4 of the enameled copper wire 5. (Not shown). Then, after the enameled copper wire 5 is fed by a certain size to be peeled, the cylinder 23 of the insulating film peeling means 16 is slid, and the rotating brush 10 is separated from the enameled copper wire 5. At the same time, the rotation of the driving motor 26 is stopped, and the rotation of the rotating brush 10 is stopped. Then, after the winding form 7 is rotated up to the designated number of turns, the rotation of the winding form 7 is stopped. Finally, the end of the planar coil 8 is cut off with a nipper (not shown) or the like, and the planar coil 8 is removed from the former 7 to complete the operation.

According to the above manufacturing apparatus, the following effects can be obtained. That is, the insulating coating 4 at a predetermined position of the enameled copper wire 5 can be peeled off during winding by the insulating coating peeling means 16 provided between the drum holding means 13 and the winding machine 6. Unlike the manual peeling, the peeling dimension can always be kept constant, and the insulating coating can be satisfactorily removed. In addition, since the winding operation and the peeling operation can be performed at the same time, the carrying of the planar coil 8 by hand is small, and the possibility that the planar coil 8 is scratched by the carelessness of the operator is significantly reduced. Drop can be prevented. Further, since the winding operation and the peeling operation can be automatically performed, the efficiency is very good.

FIG. 8 shows a second embodiment of the present invention, which differs from the first embodiment in the following points. That is, the rotating brush 10 of the insulating film peeling means 17 moves in the vertical direction (arrows X1, X2).
2) a rotary brush 10a that slides in the front and rear direction (arrows Z1 and Z2) and a rotary brush 10b that slides in the left and right direction (arrows Y1 and Y2) that are slightly shifted in the front and rear directions (arrows Z1 and Z2). According to the second embodiment, the rotating brush 10 can be pressed in the insulating film peeling means 17 from two directions, that is, the up-down direction and the left-right direction of the enamel conductor 5, so that the enamel conductor 5 having a rectangular cross section can be pressed. Good peeling of the side surface.

FIG. 9 shows a third embodiment of the present invention, which differs from the second embodiment in the following points. That is, the rotating brush 10 of the insulating film peeling means 17 is moved in the vertical direction (arrows X1, X2).
2) Alternatively, instead of the cylinder 28 of the drive source that slides in the front-rear direction (arrows Z1 and Z2), a ball screw 38
A servo motor 39 for rotating the ball screw 38 is used. According to the third embodiment, the rotating brush 10a that slides vertically (arrows X1, X2) by the speed of the enameled copper wire 5 sent by the rotation of the winding form 7.
And the timing of pressing the rotary brush 10b that slides in the left-right direction (arrows Y1, Y2) by the position in the front-rear direction (arrows Z1, Z2) can be shifted. The peel size is equal to the upper and lower surfaces and the side surface, and the insulating function can be further stabilized.

FIG. 10 shows a fourth embodiment of the present invention.
The following points are different from the embodiment. That is, a housing 40 capable of sealing the entire insulating film peeling means 17 and a dust collector 43 connected by a hose 42 for sucking the peeling powder 41 floating therein are provided. According to the fourth embodiment, even if the peeling powder 41 of the insulating film 4 peeled off by the rotating brush 10 of the insulating film peeling means 17 drifts in the air, it stays only in the housing 41. Further, since the dust powder 43 is sucked by the dust collector 43, when the enameled copper wire 5 is wound around the winding form 7, the peel powder 41 rarely gets caught in the flat coil 8 at the same time, preventing the deterioration of the insulation properties. can do.

FIG. 11 shows a fifth embodiment of the present invention.
The following points are different from the embodiment. That is, a soft material 45 such as felt, which is slid in the vertical direction (arrows X1 and X2) by the cylinder 44, is provided behind the rotary brush 10 of the insulating film peeling means 17. According to the fifth embodiment,
The soft material 45 is pressed by the cylinder 44 onto the enameled copper wire 5 peeled off by the rotating brush 10, and the peeling powder 41 attached to the enameled copper wire 5 can be wiped off. When winding around
At the same time, the peeling powder 41 is less likely to be caught in the interior of the planar coil 8, and the deterioration of the insulating properties can be further prevented.

[0023]

According to the stator coil manufacturing apparatus of the first aspect, the insulation of the enameled copper wire at a predetermined position during winding is achieved by the insulating film peeling means provided between the drum holding means and the winding machine. Since the coating can be peeled off, the peeling dimension can always be made constant, unlike an operator who peels off the coating manually, and the insulating coating can be removed favorably. In addition, since the winding work and the peeling work can be performed simultaneously, the carrying of the planar coil by hand is small, and the possibility of the worker being inadvertently scratching the planar coil is significantly reduced, and the deterioration of the insulating function of the planar coil is prevented. be able to. Further, since the winding operation and the peeling operation can be automatically performed, the efficiency is very good.

According to the stator coil manufacturing apparatus of the present invention, the rotating brush can be pressed from the enameled copper wire in two directions, the up-down direction and the left-right direction, in the insulating film peeling means. The side surface can be satisfactorily peeled from the wire, and the deterioration of the insulation properties can be further prevented.

According to the stator coil manufacturing apparatus of the third aspect, the rotating brush that slides in the vertical direction and the rotating brush that slides in the horizontal direction by the speed of the enameled copper wire sent by the rotation of the winding form. Since the pressing timing can be shifted by an amount corresponding to the positional shift, the peeling dimension of the enameled copper wire having a rectangular cross section is equal to the upper and lower surfaces and the side surfaces, and the deterioration of the insulation function can be further prevented.

According to the stator coil manufacturing apparatus of the fourth aspect, even if the peeling powder of the insulating film peeled off by the rotating brush of the insulating film peeling means drifts in the air, it stays only in the housing. Furthermore, since the dust is sucked by the dust collector, the peel powder is less likely to be simultaneously caught in the flat coil when the enameled copper wire is wound around the winding form, and the deterioration of the insulating properties can be further prevented.

According to the stator coil manufacturing apparatus of the fifth aspect, the soft material is pressed by the cylinder against the enameled copper wire peeled off by the rotating brush, and the peeling powder adhering to the enameled copper wire can be wiped off. Therefore, when the enameled copper wire is wound around the winding form, the peeling powder is less likely to be simultaneously wound inside the planar coil, and the deterioration of the insulating properties can be further prevented.

[Brief description of the drawings]

FIG. 1 is a front view of an entire stator coil manufacturing apparatus showing a first embodiment of the present invention,

FIG. 2 is an overall plan view showing a first embodiment of the present invention;

FIG. 3 is a sectional view of the drum holding means,

FIG. 4 is a front view of the guide means,

FIG. 5 is a front view of the insulating film peeling means,

FIG. 6 is a front view of the wire clamping means,

FIG. 7 is a sectional view of a winding machine,

FIG. 8 is a front view of an insulating film peeling means according to a second embodiment of the present invention;

FIG. 9 is a front view of an insulating film peeling means showing a third embodiment of the present invention;

FIG. 10 is a front view of an insulating film peeling means showing a fourth embodiment of the present invention;

FIG. 11 is a front view of an insulating film peeling means showing a fifth embodiment of the present invention;

FIG. 12 is a perspective view of a stator coil;

FIG. 13 is a front view of an entire stator coil manufacturing apparatus showing a conventional example.

FIG. 14 is a schematic diagram of a planar coil;

FIG. 15 is a schematic view showing a conventional example in which the outlet portion is manually peeled off with a rotating brush,

FIG. 16 is a schematic view showing a conventional example, in which the outlet portion is immersed in a stripping solution by hand,

[Explanation of symbols]

1: stator coil, 2: stator coil manufacturing device, 5: enameled copper wire, 6: winding machine,
8: plane coil, 10: rotating brush,
16 ... insulating film peeling means, 27 ... motor for driving,
28 ... cylinder, 29 ... guide bar, 38 ...
Ball screw 39 servo motor 40 housing 41 peeling powder 43 dust collector
45 Soft material.

Claims (5)

[Claims] 1. A winding device that winds a coil by a winding machine while unwinding a wire wound around a drum, wherein a film peeling means provided between the drum and the winding machine is provided.
An apparatus for manufacturing a stator coil, wherein an insulating coating at a predetermined position of a wire is peeled off during winding. 2. The film peeling means, wherein a rotating brush is pressed in two directions, that is, a vertical direction and a horizontal direction of a wire.
The stator coil manufacturing apparatus according to the above. 3. The stator coil manufacturing apparatus according to claim 2, wherein the coating stripping means can shift the pressing time of the rotating brush pressed from two directions according to the passing speed of the strand. 4. The stator coil manufacturing apparatus according to claim 3, wherein the coating stripping means comprises a sealing means for sealing the coating stripping means, and a suction means for sucking the peeling powder floating in the sealing means. 5. The stator coil manufacturing apparatus according to claim 4, wherein said coating stripping means includes a stripping means for removing stripping powder attached to the strand behind the rotating brush.