JPH06153464A - Magnet wire winding apparatus - Google Patents

Abstract

PURPOSE:To provide a magnet wire winding apparatus which avoids the disorder of a magnet wire even if the wire is wound with a high speed and facilitates a stable net-winding, reduces the tact time and improve the production capability and facilitates winding on a core having a small open slot. CONSTITUTION:A magnet wire 40 is neatly wound on a core 10. A plate-shaped wire guide 31 which guides the magnet wire 40 is provided at the tip part of the winding apparatus and a hook part 35 which controls the position of the magnet wire 40 is provided at the tip part of the wire guide 31. If the wire guide 31 is turned around the core 10, the magnet wire 40 is wound on the core 10 while its position is controlled by the hook part 35.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnet wire winding device for obtaining coil windings in motors, solenoids and the like.

[0002]

2. Description of the Related Art Magnet wire winding devices are used to obtain coil windings in various electric devices such as motors, solenoids and the like. 12 and 13 show an example of a conventional magnet wire winding device. 12 and 13, the main shaft 70 is supported by an appropriate bearing so as to be rotatable around the axis and movably in the axial direction. A cylinder 74 is attached to the tip of the main shaft 70, and a fryer 73 is attached between the main shaft 70 and the cylinder 74. The outer circumference of the cylindrical body 74 is a tapered surface 75 in a direction narrowing toward the tip, and a hole 76 having an open front end is formed inside the cylindrical body 74. A guide hole 72 for the magnet wire 40 is formed in the main shaft 70, and the magnet wire 40 passed through the guide hole 72.
Is guided to the tip portion of the cylindrical body 74 via the fryer 73.

12 and 13, assuming that the work is the armature core 10 of the motor, one of the plurality of salient poles 11 formed on the armature core 10 is received in the hole 76 of the cylindrical body 74. A tip portion of each salient pole 11 is an umbrella portion 12 which is widened in the circumferential direction, and the hole 76 is formed in a size capable of receiving the umbrella portion 12. Other salient poles 11 adjacent to the one salient pole 11 and slots other than the slot to be wound are covered by the guide 80. As described above, the salient pole 11 is inserted into the hole 76 of the cylindrical body 74.
When the cylindrical body 74 is driven to rotate together with the main shaft 70 in a state in which one of the
And is wound around the one salient pole 11 while being slid on the tapered surface 75 of the cylindrical body 74. Further, in synchronization with the winding of the magnet wire 40, the main body 70 and the tubular body 7 are synchronized.
By swinging 4 in the axial direction, the magnet wire 40 can be wound around the salient pole 11 while being aligned.

A nozzle having a magnet wire inserted therein is used in place of the cylindrical body 74 as in the conventional example, the nozzle is rotated around the salient pole in the open slot, and the nozzle is rocked back and forth in synchronization with this rotation. There is also a winding device configured to perform winding while aligning by moving.

[0005]

In the winding device using the cylindrical body as shown in FIGS. 12 and 13, the magnet wire is wound around the salient pole while sliding on the guide and the tapered surface of the cylindrical body. When wound at high speed, the magnet wire flickers between the guide and the tip of the cylinder, and the alignment is apt to be disturbed.The cylinder guides the magnet wire only at its end face, so the magnet wire Wires can move freely, and when wound at high speed, the degree of alignment tends to be disturbed. Furthermore, when the magnet wire is routed between the slots, the tubular body must be temporarily pulled out from the salient pole, which increases the takt time of the winding work and reduces the production capacity. However, it is necessary to secure a space for inserting the salient pole into the cylindrical body, and there is a limit to widening the width of the salient pole, and there is a problem that characteristics such as a decrease in torque and an increase in cogging deteriorate.

On the other hand, in the winding device using the above-mentioned nozzle, a space for the nozzle to enter the open slot is required. Therefore, in the case of the motor, there is a limit in widening the width of the salient pole, and the torque decreases. However, there is a problem that the characteristics are deteriorated such that cogging is increased, and it is not suitable for a multipolar structure.

The present invention has been made in order to solve the above-mentioned problems of the prior art. Even if the winding is performed at a high speed, the magnet wire is not disturbed, and stable aligned winding is possible. It is an object of the present invention to provide a magnet wire winding device that has a short tact time for winding work, improves production capacity, and can wind even a core with a small open slot.

[0008]

In order to achieve the above object, the present invention provides a plate-shaped wire guide for guiding a magnet wire at the tip of a magnet wire winding device, and the magnet wire is provided at the tip of the wire guide. The hook part which regulates the position of is provided. Wire guide
The plate material can be formed to cover a part of the winding target.

[0009]

Function: The wire guide is driven to rotate around the core. The hook portion at the tip of the wire guide guides the magnet wire while regulating the position of the magnet wire, and the magnet wire is wound around the core while being fed out as the wire guide is driven to rotate. It suffices if there is a small space around the winding part of the magnet wire for the plate-shaped wire guide.

[0010]

Embodiments of a magnet wire winding device according to the present invention will be described below with reference to the drawings. In FIG. 1, a main shaft 16 rotatably supported by a bearing 15 has a spline groove 17 formed therein.
The outer shaft 14 is fitted around the outer circumference of the main shaft 16. Outer shaft 1
An inward projection 27 is formed at one end of the outer shaft 14, and the outer shaft 14 moves axially within the range of the spline groove 17 relative to the main shaft 16 by fitting the projection 27 into the spline groove 17. It is possible and can rotate integrally with the main shaft 16. A cylindrical housing 25 is fitted on the outer circumference of the outer shaft 14 via a pair of bearings 26, and the outer shaft 14 is supported so as to be rotatable relative to the housing 25.

One end of the housing 25 has a brim shape, and a motor 21 for rotationally driving a fryer, which will be described later, is attached to the brim-shaped portion, and a ball screw 23 is screwed therein. A nut 24 is attached.
The ball screw 23 extends parallel to the main shaft 16 and is rotationally driven by the motor 22. The pulley 20 is attached to the output shaft of the motor 21 for rotating the flyer,
Pulley 18 and pulley 20 provided on the outer shaft 14
The belt 19 is stretched over the outer shaft 14 and the rotational force of the motor 21 is transmitted to the outer shaft 14.

The other end of the outer shaft 14 (the left end in FIG. 1)
A fryer 28 is loosely fitted to the other end of the main shaft 16 protruding from the main shaft 16, and the fryer 28 is fixed to the other end of the outer shaft 14 by a set screw. Therefore, the fryer 28 can rotate integrally with the outer shaft 14 and can move in the axial direction. A stay guide 29 is further attached to the other end of the main shaft, and a stay 30 is attached by the stay guide 29 and a part of the flyer 28. A wire guide 31 is attached to the tip of the stay 30. Stay 3
0 and the wire guide 31 are attached obliquely to the direction of the main shaft 16. The wire guide 31 is shown in FIG.
As shown in FIG. 3, it is a plate-shaped member in which a part of a cylinder is obliquely cut out, has a guide groove 39 for guiding the magnet wire in the axial direction, and has a rounded end portion for regulating the position of the magnet wire. A hole-shaped hook portion 35 is formed. The wire guide is formed by processing a flat plate material to cover a part of the winding target.

A pressing member 33 is further provided at the other end of the main shaft 16 with a pressing mechanism 32 interposed. In the illustrated example, the work is the armature core 10 of the motor.
The armature core 10 has a plurality of radially extending salient poles 11, and the tips of the salient poles 11 are umbrella portions 12 that spread in the circumferential direction. Umbrella part 1 of one salient pole 11 of armature core 10
The pressing member 33 is pressed against 2 by the pressing force of the pressing mechanism 32, and the armature core 10 for the wire winding device is pressed.
Are relatively positioned. The pressing mechanism 32 is
It has a thrust bearing and a radial bearing for the main shaft 16, and the pressing mechanism 32 allows the main shaft 16 to rotate without moving.

Next, the operation of the magnet wire winding device will be described. A magnet wire 40 is passed through a hole 37 formed in the main shaft 16 in the axial direction,
The magnet wire 40 pulled out from the opening of the outer surface of the outer shaft 14 is hooked on the guide roller 38 of the flyer 28, passed through the guide groove 39 of the wire guide 31, and then passed through the hook portion 35. Armature core 1 as above
When the pressing member 33 is pressed against the umbrella portion 12 of one salient pole 0 of 0, and the armature core 10 is positioned relative to the wire winding device, the wire guide 3
1 is an open slot 34 between the salient pole 11 and the salient pole 11.
Has invaded inside.

Therefore, when the motor 21 is driven with the tip of the magnet wire 40 fixed at an appropriate position of the armature core 10, the rotational force is changed to the pulley 20, belt 19,
It is transmitted to the outer shaft 14 via the pulley 18, and further the protrusion 27
It is transmitted to the main shaft 16 by the fit between the spline groove 17 and the spline groove 17. The flyer 28 and the wire guide 31 are driven to rotate together with the main shaft 16 and the outer shaft 14. Since the wire guide 31 rotates in the open slot 34 while drawing a conical locus, the magnet wire 40 pulled out from the hook portion 35 of the wire guide 31 is wound around the salient pole 11. The motor 22 is also driven in synchronization with the rotation of the motor 21. The ball screw 23 is rotationally driven by driving the motor 22. The nut 24 is moved in the axial direction by the rotation of the ball screw 23, and the housing 25 integrally including the nut 24 is also moved in the axial direction. Since the housing 25 is integrated with the outer shaft 14 in the axial direction, the outer shaft 14 also moves in the axial direction,
Along with this, the flyer 28 and the wire guide 31 also swing in the axial direction, and the magnet wire 40 is wound while being aligned with the salient pole 11. The swing amount of the wire guide 31 with respect to the number of winding times is determined by the outer diameter of the magnet wire 40.

After the magnet wire 40 is wound around the salient pole 11 a predetermined number of times, the rotation is stopped with the wire guide 31 positioned right above the armature core 10 as shown in FIG. Then, the core 10 is rotated about its axis to be positioned, and the above-described operation is performed to wind the magnet wire 40 around the next salient pole 11.

According to the embodiment described above, the plate-shaped wire guide 31 for guiding the magnet wire 40 is provided at the tip of the winding device, and the hook for regulating the position of the magnet wire 40 is provided at the tip of the wire guide 31. Part 3
Since the magnet wire 40 is provided, the magnet wire 40 can be guided by the hook portion 35 even in the vicinity of the salient pole 11, and the magnet wire 40 can be positioned freely, so that the magnet wire 40 can be wound at high speed. There is little fluttering, and the magnet wire 40 can be stably wound in an aligned manner. In addition, since it is not necessary to separately provide a member for guiding the magnet wire 40, the factor of fluttering the magnet wire 40 is reduced, and from this point as well, the magnet wire 40 can be stably wound in an aligned manner, and Damage such as pinholes is reduced and quality is improved. Further, since the wire guide 31 is plate-shaped and not a cylindrical body surrounding the salient poles, the magnet wire 40 can be easily routed between the slots, the takt time is shortened, and the production capacity is improved. Further, since it does not guide the entire circumference of the magnet wire 40 unlike a winding device using a nozzle, it is possible to wind even a core with a small open slot, and it is possible to improve the characteristics of the motor and the like.

The hook 35 is provided at the tip of the wire guide 31 as much as possible so that the magnet wire 40 can be wound from the root of the salient pole 11. Further, in the above embodiment, the wire guide 31 is formed by cutting a cylindrical member obliquely so that the thickness of the tip is thin and the overall strength is large, but the wire guide 31 is not limited to such a shape. Instead, it may be a simple plate. Further, the wire guide and the fryer may be fixed, the work side may be rotated, and the wire guide may be oscillated in synchronization with this rotation.

Next, various modifications of the wire guide will be described. 5 and 6, the wire guide 4 is used.
2, a central hole 44 for axially guiding the magnet wire 40 inserted in the axial hole 43 of the main shaft 41, and an oblique hole 45 for temporarily guiding the magnet wire 40 to the front side.
The magnet wire 40 led to the front side is provided with a hook portion 46 for leading the magnet wire 40 further to the back side. The tip portion of the wire guide 42 is thin and formed in a plate shape. The hook portion 46 is for restricting the position of the magnet wire 40, and is formed on both sides of the tip end portion of the wire guide 42, and its shape is such that a part of both sides of the tip end portion of the wire guide 42 is cut out. There is. Depending on the winding direction of the magnet wire 40 with respect to the core, either one of the hook portions 46 on both sides is used properly.

In the example shown in FIG. 7, the wire guide 47 is composed of a block-shaped base end portion and other thin plate-shaped portions, and a guide hole 48 of the magnet wire 40 is formed in the longitudinal direction at the base end portion. The hook portion 50 is formed on both sides of the tip of the thin plate-shaped portion. When the wire guide 47 is rotated around the salient pole 11, the magnet wire 40 is guided by the guide hole 48 and wound around the salient pole 11 while the position of the magnet wire 40 is regulated by the hook portion 50. The example shown in FIG. 8 is a development of the example shown in FIG. 7, and the magnet wire 40 is provided between the guide hole 48 and the hook portion 50.
Guide groove 52 for guiding the wire guide 51
It is formed in the longitudinal direction of.

The example shown in FIG. 9 is replaced with the notch-shaped hook portion 50 in the example shown in FIG.
It is an example of the wire guide 55 formed with. Hook part 5
7 is formed long in the width direction of the wire guide 55. The example shown in FIG. 10 is a development of the example shown in FIG. 9, and the magnet wire 4 is provided between the guide hole 48 and the hook portion 57.
The guide groove 59 for guiding the wire guide 5
8 is formed in the longitudinal direction.

In the example shown in FIG. 11, a notch 62 is formed from the tip of a plate-shaped wire guide 61, and the notch 6
2 is followed by cutting the wire guide 61 in the width direction to form the hook portion 63. The magnet wire 40 is inserted into the hook portion 63 through the notch 62, and the position of the magnet wire 40 is regulated.

[0023]

According to the present invention, the plate-shaped wire guide for guiding the magnet wire is provided at the tip portion, and the hook portion for restricting the position of the magnet wire is provided at the tip portion of the wire guide. Since the magnet wire can be guided by the hook even in the vicinity, the magnet wire can be positioned freely, and even if the magnet wire is wound at high speed, there is little flutter and the magnet wire can be stably aligned and wound. can do. In addition, since it is not necessary to separately provide a member for guiding the magnet wire, the factor that the magnet wire flutters is reduced, and from this point as well, the magnet wire can be stably wound in an aligned manner, and the pin hole of the magnet wire, The damage is reduced and the quality is improved. Since the wire guide is plate-shaped and not a cylinder that surrounds the salient poles, it is easy to route the magnet wire between the slots.
Tact time is shortened and production capacity is improved. Further, since it does not guide the entire circumference of the magnet wire unlike a winding device using a nozzle, it is possible to wind even a core with a small open slot, and it is possible to improve the characteristics of the motor and the like.

[Brief description of drawings]

FIG. 1 is a partially sectional front view showing an embodiment of a magnet wire winding device according to the present invention.

FIG. 2 is a perspective view showing a wire guide in the embodiment.

FIG. 3 is a plan view showing a part of the wire guide.

FIG. 4 is a plan cross-sectional view of a main part showing a different operation mode of the above embodiment.

FIG. 5 is a front sectional view showing a modification of the wire guide applicable to the present invention.

FIG. 6 is a plan view showing a part of the wire guide.

FIG. 7 is a perspective view showing another modification of the wire guide applicable to the present invention.

FIG. 8 is a perspective view showing still another modified example of the wire guide applicable to the present invention.

FIG. 9 is a perspective view showing still another modification of the wire guide applicable to the present invention.

FIG. 10 is a perspective view showing still another modification of the wire guide applicable to the present invention.

FIG. 11 is a perspective view showing still another modification of the wire guide applicable to the present invention.

FIG. 12 is a plan sectional view showing an example of a conventional magnet wire winding device.

FIG. 13 is a perspective view showing the main part of the above conventional example.

[Explanation of symbols]

 10 core 31 wire guide 35 hook part 40 magnet wire 42, 47, 51, 55, 58, 61 wire guide 46, 50, 57, 63 hook part

Claims (2)

[Claims] 1. A magnet wire winding device that winds a magnet wire aligned on a core, wherein a plate-shaped wire guide that guides the magnet wire is provided at the tip of the magnet wire winding device. The magnet wire winding device is provided with a hook part for restricting the position of the magnet wire in the part. 2. The magnet wire winding device according to claim 1, wherein the wire guide is formed by forming a plate material so as to cover a part of a winding target.