JP2527868B2 - Coil winding equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has a plurality of magnetic poles arranged in a radial direction along a circumference such as a stator of an outer rotor type motor, and a slot is provided between adjacent magnetic poles. it relates to that equipment be wound around the core.

[0002]

2. Description of the Related Art FIG. 3 (A) is shown for comparison and is an explanatory view of an operation of winding a wire 3 around a core 1 of a 3-pole rotor to form a coil 3. Since the slot 1b between the poles 1a is large, the winding can be performed without difficulty. On the other hand, when an attempt is made to form a coil 5 by winding it around a stator core 4 of an outer rotor type motor as shown in FIG. 3 (B), for example, adjacent poles interfere with each other and the above-mentioned (A) is used. It cannot be easily wound as shown in the figure. In particular, it is more difficult if the barb pin 6 used as a terminal pin and its pin holder 7 (shown by phantom lines) are provided.

In such a case, the side formers 8 and 8'as shown in FIG. 4 are used to guide the electric wire into the slot. This FIG. 4 is an enlarged schematic drawing of the vicinity of the IV portion shown in FIG. 3 above. FIG. 5 shows a side view as seen in the direction of arrow V in FIG. When winding on the core, there are a flyer method in which the core is fixed and the nozzle (electric wire is extended) is rotated, and an axial rotation method in which the nozzle is fixed and the core is wound, but the wire is twisted. From the standpoints of not having a device and making the device compact, the axial turning method is more advantageous.

FIG. 5 shows a conventional example of a shaft turning system.
The core 4 is fixed to the core mounting jig 12, mounted on a spindle shaft (not shown), and rotated about the XX 'axis. The nozzle 9 for feeding the electric wire is the nozzle holder 11
It is attached to the nozzle bar 10 via. As shown in FIG. 4, 1
A pair of side formers 8 and 8'is arranged. In FIG. 5, two side formers overlap. FIG. 6 is a diagram in which one side former 8 is drawn by a solid line. Figure 6
The side former 8 shown in (B) is a view seen from the same direction as the side former 8 shown by a virtual line in FIG.

In FIG. 4, the electric wire 2 is represented by its cross section. The electric wire 2 sliding on the side former 8 slides as shown by arrows a and b and is guided into the slot 4a. A side view of the arrows a and b shown in FIG. 4 is as shown by the arrows a and b in FIG. The electric wire 2 guided into the slot 4a in this manner is wound around the magnetic pole of the core to form a coil because the core 4 is rotated, but the electric wire 2 guided by the side former 8 is used. Is removed from the side former 8 and the slot 4
Since it is dropped near the entrance of a, it is densely wound near the entrance of the slot c, and sparse near the back of the slot. In order to solve such a problem, it has been attempted to provide the center former 13 shown in FIG. FIG. 7 is a perspective view schematically illustrating an axial-winding type winding device, in which the core pedestal 1 attached to the spindle shaft 14 is shown.
5, the core 4 is attached via the core attachment jig 12, and X
It is rotated around the -X 'axis. Reference numerals 8 and 8'are the side formers described above. 8A, 8B, and 8C are views of the center former 13 shown in FIG. 7 as a single product, and FIG. 9 shows how the core 4 is attached to the core pedestal 15.

The center former 13 and the core 4 shown in FIG.
FIG. 10 shows a cross-sectional view in which and are extracted and cut along a vertical plane including the axis XX ′. The electric wire 2 fed from the nozzle 9
Indicates an arrow e along the guide surface 13a of the center former 13.
As described above, the wire is guided and wound in the middle of the depth direction of the slot 4a (left-right direction in the drawing). As can be easily understood from FIG. 8 described above, when the center former 13 is a stationary member, the core 4 cannot rotate about the XX ′ axis, so that the center former 13 can be rotated about the XX ′ axis. It is supported by a bearing 22a so that it can rotate freely, and is driven to rotate as the core 4 rotates.

[0007]

When the above-mentioned center former is used, as shown in FIG. 10, the slot 4a is formed.
Can be wound in the middle (in the left-right direction in the drawing, in the radial direction of the core 4). However, the coil 5 wound in this way has the slot 4a.
The so-called dumpling is wound in the middle. In the prior art, the multi-pole type core 4 as shown in FIG.
It was the best to guide the wire to the middle of the slot and perform high-speed winding (for example, 1,000 rpm). However, recently, with the technical progress of electric rotating equipment, the armature is downsized and the density is increased, and further improvement of the space factor of the coil is required. For this reason, it is necessary to perform the regular winding instead of the dumpling winding described with reference to FIG. In the prior art, when a high degree of alignment is required, it is widely practiced to move (traverse) the nozzle in the direction of the rotation axis and wind it in an aligned manner. However, in a multipolar core, the nozzle is traversed and aligned. I couldn't wind it. The reason is as follows. As shown in FIG. 11 (A), when the nozzle 9 is inserted into the slot 4a of the core 4 and the core 4 is rotated around the X-axis to be wound, a multipolar core like the present example is obtained. , The tip of the nozzle 9 (the left end in the figure) interferes with the adjacent pole and does not go deep into the slot 4a. For this reason, a technique has been proposed in which the nozzle 9 is tilted with respect to the X axis as shown in FIG. 11B (for example, JP-A-63-57475, an outer rotor winding machine). As shown in FIG. 11B, a straight line m passing through the center point 0 of the core and the center of the slit is assumed, and the angle θ formed by this straight line m with the X axis is named the inclination angle of the inductor tooth. As shown in FIG. 11B, when the nozzle 9 is inclined by the inclination angle θ of the inductor tooth, the tip of the nozzle 9 can be inserted into the slot 4a.

However, even if the nozzle is tilted as shown by the solid line 9 in FIG. 12 and its tip is exposed to the back of the slot 4a, the nozzle 9 is traversed in the direction of arrow t and aligned with the pole 4b. I can't wind it.
The reason is that when the nozzle is traversed to the 9'position drawn by the imaginary line, the nozzle 9'in this position interferes with the pole 4b of the core 4. It is conceivable to traverse the center former as described above to enable aligned winding, but this complicates the structure of the device, resulting in an increase in size and cost. In addition, the flyer type device has a complicated structure and
The size of the device becomes large and the wires are twisted . Per roll
If twisting occurs, a slight change in wire diameter will occur and
It is profitable. Furthermore, if the twisting point is not the same every time,
It causes flicker, which creates irregular voids between the wires and
For the request to wind as much as possible in a given space
Result in contrary results . The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a winding device for a motor coil of an axial rotation type, which can be wound around a multipolar core in an aligned manner .

[0009]

The basic principle of the present invention created in order to achieve the above object will be outlined as follows. In FIG. 12, when the nozzle 9 is attempted to be traversed in the direction of arrow t, it interferes with the pole 4b. It is possible to move to the 9 "position and wind the coils 5 in a high-density arrangement without interfering with 4b, and in this case, as shown in FIG. Since the tip portion of 9 "has a slight thickness dimension D, it is difficult to exactly match the longitudinal direction with the inclination line m of the inductor tooth. Therefore, in the present invention, to make the inclination angle θ of the inductor teeth substantially coincide with each other. Traversing in the direction forming the angle θ means traversing in the direction forming the angle θ.

The coil winding method adopted by the present inventor as a concrete means based on the principle shown in FIG. 13 is such that a plurality of magnetic poles in the radial direction are arranged along the circumference and the magnetic poles between adjacent magnetic poles are arranged. While rotating the core provided with a slot with the center line of any one of the plurality of magnetic poles as the axis of rotation, the electric wire fed from the nozzle is guided into the slot and the electric wire is wound around the magnetic pole. To improve the winding method
Te, the reference line of the rotation drive mechanism that supports the rotary shaft, and at least one of the reference line of the nozzle drive mechanism that supports the nozzle is inclined with respect to the other,
The nozzle is traversed in the longitudinal direction and wound in a state where the angle of intersection between the rotary shaft and the longitudinal direction of the nozzle is made equal to the inclination angle θ of the inductor tooth .

In the coil winding device according to the present invention, a plurality of magnetic poles in the radial direction are arranged along the circumference, and a core provided with slots between the magnetic poles is attached to the coil winding device. In a coil winding device including a spindle shaft that rotates by making the center line of any one of the magnetic poles coincide with the rotation shaft, and a nozzle that is traversed while feeding out an electric wire, supporting and has the rotary drive mechanism, and, at least one of the nozzle driving mechanism for traversing by supporting the nozzle, tiltably supported Rutotomoni, the inclination angle relative to a horizontal plane freely adjusted with respect to the other You're getting
And the rotary shaft is horizontal by the rotary drive mechanism.
The structure is rotatable about an axis, and the rotation drive mechanism is provided.
Is rotated about a horizontal axis,
It characterized in that a structure is caused to tilt.

[0012]

When the winding work is carried out using the above-mentioned invention device,
Since the nozzle 9 is traversed in the direction of the arrow T as shown in FIG. 13, which is a diagram for explaining its principle, the tip of the nozzle can perform highly accurate aligned winding without the help of the former. Moreover, since the present invention uses the axial rotation method, there is no risk of twisting the electric wire 2, and since the nozzle is not rotated around the X axis, the structure of the drive mechanism for traversing the nozzle is easy, and the traverse operation Control can also be easily performed. The rotating shaft (spindle) driving mechanism and the nozzle driving mechanism in the winding machine are generally configured as one unit device having a frame or a base member, respectively, so that they can be tiltably supported or tilted. Adjusting the corners does not present any additional technical difficulties.

[0013]

FIG. 1 is a side view showing an embodiment of the device of the present invention, in which (A) and (B) are different from each other. In both (A) and (B), reference numeral 30 denotes an index, which is rotatably supported by a shaft 30a and also supports a core pedestal 15 at its tip via a spindle shaft 14. The core 4 is mounted on the core pedestal 15. The nozzle 9 is supported by a nozzle bar 10 via a nozzle holder 11, and the nozzle bar 10 is driven by an XYZ carriage 31 in a three-dimensional space. In the embodiment shown in FIG. 9A, the X axis is the center line of the spindle shaft 14 and the reference line of the rotary drive mechanism. In this example,
The reference line XX is set horizontally. In the present invention
The reference line for the rotation support mechanism is the
Designed parallel to or along the centerline of the spindle shaft
The line defined in. Also, the reference line of the nozzle drive mechanism
Is the reciprocating straight line when driving the nozzle back and forth in a straight line.
Is a line defined by design parallel to this . The XYZ carriage 31 is a nozzle drive mechanism, and its base member 3
1a is supported by a carriage horizontal shaft 32 so as to be tiltable.
A reference line m'is set along the bottom surface of the base member 31a, the nozzle 9 is supported in parallel with the reference line m ', and is reciprocally driven (traversed) in parallel with the reference line m. Reference numeral 33 shown in the figure is a carriage tilter for pushing up the base member 31a to tilt the reference line m. In order to carry out the winding work using the apparatus of this embodiment (FIG. 1 (A)), the XYZ carriage 31 is tilted by the carriage tilter 33, and the reference line m is tilted with respect to the horizontal line. Angle θ
Just tilt. Along with this, the traverse direction (arrow T) of the nozzle 9 also forms an angle θ with the horizontal line (XX). As a result, a state similar to that of FIG. 13 described as the principle diagram appears, and the coil 5 aligned with high precision by the axial rotation method is wound without the nozzle 9 interfering with the core 4.

In the embodiment shown in FIG. 1 (B), an XYZ carriage 31 is fixedly installed, and the nozzle 9 has a horizontal line H.
It is held along −H and is reciprocally driven (traverse) in the horizontal line HH direction. On the other hand, the index pole 30b having a function as a frame of the rotary drive mechanism
Is rotatably supported by the rotary unit horizontal shaft 34. X'-X 'in the figure is the center line of the spindle shaft 14 and the reference line of the rotary drive mechanism. Rotating part tilter 35
Can tilt the index pole 30b around the rotary unit horizontal axis 34 to arbitrarily adjust the tilt angle of the reference line X'-X '.

Using the apparatus of this embodiment (FIG. 1 (B))
In order to carry out the winding work , the index pole 30b is tilted by the rotary part tilter 35, and the reference line X'-X 'is tilted by the tilt angle .theta. Of the inductor tooth with respect to the horizontal line. Along with this, the traverse direction (arrow T) of the nozzle 9 also forms an angle θ with respect to the reference line (X′-X ′). As a result, a state similar to that of FIG. 13 described as the principle diagram appears, and the coil 5 aligned with high precision by the axial rotation method is wound without the nozzle 9 interfering with the core 4. 2 is a perspective view of an embodiment different from the above, and this embodiment includes a carriage tilting device 33 in the embodiment of FIG.
Both are provided with the rotary part tilter 35 in the embodiment of (B). When using the apparatus of this example is adjusted such that the sum of the inclination angle theta ₂ of the inclination angle theta ₁ and the nozzle driving mechanism of the rotary drive mechanism is substantially equal to the inclination angle theta of the inductor teeth. In the above embodiment, the rotation drive mechanism and the nozzle drive mechanism are tilted by the angle θ in the vertical plane,
As a different embodiment (not shown), it may be inclined by an angle θ in a horizontal plane.

FIG. 14 shows an embodiment different from the above,
(A) is a schematic perspective view and (B) is a side view. This embodiment is a modification of the embodiment shown in FIG.
Those denoted by the same reference numerals in the figure as those in the figure are the same or similar components. The present embodiment (FIG. 14) is different from the above embodiment (FIG. 1 (B)) in the following points. The pole 30c supporting the index 30 is fixed to the base member of the apparatus and does not tilt. In this example, the rotation of the index 30 is driven and controlled by a servomotor (not shown), and the spindle shaft 14 supported by the index 30 is simply rotated by 18
Not only is it rotated by 0 degrees, but the inclination angle of the spindle shaft 14 with respect to the horizontal line H-H can be adjusted arbitrarily and accurately. Figure (B) shows spindle shaft 1
4 is drawn with a tilt angle θ of the inductor teeth. When the nozzle 9 is traversed in the horizontal direction as shown by the arrow T in this state, the same action and effect as in the embodiment of FIG. 1B can be obtained. According to this embodiment (FIG. 14), since the pole 30c supporting the index is a stationary member and a drive and control mechanism for tilting the pole is not required, the structure of the entire winding device is simple and lightweight. Is.

[0017]

As is apparent from the above embodiments, when the winding work is carried out by using the device of the present invention, the advantages of the axial rotation system (the electric wire is not twisted, the device is small in size) are obtained. It is possible to form a coil having a high space factor by performing windings aligned with high precision on a multi-pole type core without deteriorating.

[Brief description of drawings]

FIG. 1 is a side view showing two embodiments of a winding device according to the present invention.

FIG. 2 is a perspective view of an embodiment different from the above.

FIG. 3 is a plan view showing a core for a motor.

FIG. 4 is an explanatory diagram of a side former according to a conventional technique.

FIG. 5 is an explanatory diagram of a side former according to a conventional technique.

FIG. 6 is an explanatory diagram of a side former according to a conventional technique.

FIG. 7 is a perspective view showing a winding device of a conventional example.

FIG. 8 is a three-sided view showing a conventional center former.

FIG. 9 is a perspective view showing a mounted state of a core in a conventional winding machine.

FIG. 10 is a schematic cross-sectional view for explaining a technical problem in winding work of a conventional example.

FIG. 11 is an explanatory diagram of a problem in the conventional technique.

FIG. 12 is an explanatory diagram of a problem related to the traverse of the nozzle according to the related art.

FIG. 13 is an explanatory diagram of the basic principle of the present invention.

FIG. 14 shows an embodiment further different from the embodiment shown in FIGS. 1 and 2, (A) being a perspective view and (B) being a side view.

[Explanation of symbols]

1 ... 3-pole type core, 1a ... Pole, 1b ... Slot, 2 ... Electric wire, 3 ... Coil, 4 ... Multi-pole type core, 4a
... Slots, 5 ... Coil, 6 ... Barrel pins, 7 ... Pin holders, 8, 8 '... Side formers, 9 ... Nozzles, 10 ...
Nozzle bar, 11 ... Nozzle bar support, 12 ... Core mounting jig, 13 ... Center former, 13a ... Guide surface, 14 ...
Spindle shaft, 15 ... Core pedestal, 16 ... Core mounting pin,
30 ... Index, 30a ... Axis, 31 ... XYZ carriage, 31x ... X-axis motor, 31y ... Y-axis motor, 31z
... Z-axis motor, 32 ... carriage horizontal axis, 33 ... carriage tilter, 34 ... rotating part horizontal axis, 35 ... rotating part tilter.

Claims (2)

(57) [Claims] 1. A plurality of radial magnetic poles are arranged along a circumference.
There is a slot between the magnetic poles
Attach a core that has one of the above magnetic poles
Spin with the center line of the magnetic pole aligned with the axis of rotation
Equipped with a dollar shaft and a nozzle that traverses while feeding the electric wire
In the winding device of the coil which is the rotary drive mechanism that supports the rotation axis, and, prior to
Nozzle drive mechanism that supports and traverses the above nozzles
At least one of them is tiltably supported with respect to the other.
Being held, the tilt angle with respect to the horizontal plane can be adjusted freely
And the rotary shaft is a horizontal shaft driven by a rotary drive mechanism.
It has a structure that can rotate around, and
The rotary shaft tilts as it rotates around a flat shaft
Coil windings characterized by a forcing structure
Equipment . 2. A plurality of installation locations of the nozzle,
The plurality of nozzles are arranged in a row in the horizontal direction, and
The installation location of the rotary shaft is equal to the number of the above nozzles.
The rotary drive mechanism supporting the rotary shaft is
It is a structure rotatable around,
The rotation axis is tilted as it rotates about a horizontal axis.
2. The structure which can be moved, 2.
The coil winding device described in 1 .