JPH09190943A - Wire winding mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a winding mechanism constituted with a simple construction capable of reducing the size and weight and of improving operability. SOLUTION: This mechanism comprises a spindle 1 pivoted in a freely rotatable manner through a bearing 2 relative to a base 3, a work statically held on an axis almost the same as that of the spindle 1, and a nozzle 6 which is rotated together with the spindle 1 in one united body and guides wire 5 to be wound around the work. Here, a wire lead-in end 6A of the nozzle 6 is arranged on a rotating shaft A of the spindle 1, and a wire feeding end 6b of the nozzle 6 is arranged at a position with a predetermined distance from the rotating axis A of the spindle 1. Also, a former 9 coupled coaxially to the spindle 1 through the bearing 2 is provided at the center portion of the spindle 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a wire rod winding mechanism for performing aligned winding on an armature of a motor or the like.

[0002]

2. Description of the Related Art As a wire rod winding mechanism for winding a coil on a work such as an armature of a motor, a flyer type wire rod winding mechanism has been used in the past. Proposals have been made in Japanese Patent Publication No. 59-15461, Japanese Utility Model Publication No. 60-31416, Japanese Unexamined Patent Publication No. 7-15925, and the like.

Among these, the flyer type wire winding mechanism proposed in Japanese Patent Publication No. 59-15461 is an armature 8.
The winding is performed on the wire, specifically, as shown in FIG.

In this case, the hollow main shaft 11 is rotatably supported by a sliding cylinder 15 which slides in the axial direction by the rotation of the feed screw 14 via a bearing 16. An elongated hole 17 is formed in the main shaft 11 so as to face each other, and a roller 18 is rotatably supported at one end of the elongated hole 17.

A pipe 22 fitted with bushes 23 for guiding the wire 5 at both ends is fixed to one end of the main shaft 11, and the wire 5 is guided to the flyer 19 through the pipe 22. .

The flyer 19 fixed to the main shaft 11 has
A plurality of rollers 20 for guiding the wire 5 along the shape of the flyer 19 are rotatably supported, and a bush 21 for pulling out the wire 5 is fixed at one end.

The wire 5 drawn out from the bush 21
Is guided along the wire rod guide 34 and reaches the armature 8 which is held in a stationary state coaxially with the main shaft 11. In addition,
Illustration of the holding means of the armature 8 is omitted. The wire rod guide 34 rotates the feed screw 26, and
The movement of the slider 24 that slides with respect to 5 is transmitted via the link mechanism 39 and moves in the direction of the main shaft 11.

With such a configuration, the wire rod 5 is aligned around the armature 8 in a stationary state by sliding the main shaft 11 and moving the wire rod guide 34 in synchronization with the rotation of the main shaft 11 and the flyer 19. Winding is done.

[0009]

By the way, in the wire rod winding mechanism using the flyer 19 as described above, a plurality of rollers 18 and 20 are required to guide the wire rod 5, and the main shaft 11 is hollow so that the wire rod is not hollow. Slot 1 as the exit of 5
Since 7 had to be provided, the structure was complicated.

Further, since the wire rod 5 can change its direction in a complicated manner, there is a risk of wire breakage. When the wire rod breaks, it is necessary to set the wire rod 5 again so as to guide it to a complicated guide path.
The work efficiency is reduced.

Further, since the main shaft 11 and the flyer 19 are heavy and unbalanced, vibration is likely to occur during high speed rotation. Due to this vibration, an excessive load is applied to the bearing 16, the life of the entire device is shortened, the accuracy of the winding is reduced, and noise is increased. Therefore, conventionally, a measure such as providing a balance weight at a position facing the flyer 19 has been adopted.
Furthermore, the device was to be complicated.

Since the radius of gyration of the flyer 19 needs to be changed according to the size of the work such as the armature 8,
Each time this change is made, it becomes necessary to replace the balance weight as well as the flyer 19 and the roller 20, which requires complicated work.

Further, in the winding to the armature as in this example, a guide member (former) such as the wire rod guide 34 is required, but the main shaft 11 becomes longer by that much, and the apparatus becomes large.

The present invention focuses on such a problem,
An object of the present invention is to provide a wire rod winding mechanism which has a simple structure and which can be reduced in size and weight and improved in operability.

[0015]

SUMMARY OF THE INVENTION A first invention is a spindle rotatably supported by a base through a bearing, a work stationaryly held substantially coaxially with the spindle, and a spindle. And a guide that guides the wire rod that rotates integrally with the work and is wound around the work. The wire rod guided by the guide is eccentric from the rotation axis of the spindle and penetrates the spindle.

In a second aspect of the invention, the wire rod introduction end of the guide is arranged on the rotary shaft of the spindle, and the wire rod feeding end of the guide is arranged at a predetermined distance from the rotary shaft of the spindle.

According to a third aspect of the invention, a former is provided at a central portion of the spindle so as to be pivotally coupled to the spindle via a bearing.

[0018]

In the first aspect of the present invention, the spindle rotates with respect to the base when the wire is wound around the work, but the wire is guided so as to pass through the spindle by the guide that rotates integrally with the spindle. Is it possible to eliminate the bent part of
Alternatively, the bending angle of the wire can be reduced, disconnection can be prevented, and the rotating portion at the time of winding becomes lightweight, so that vibration at high speed rotation is suppressed.

In the second aspect of the invention, since the wire rod introduction end of the nozzle is arranged on the rotary shaft of the spindle, the wire rod feeding end makes a circular motion around the work during winding, and the wire rod is wound around the work. On the other hand, the wire is kept in the same position at the wire introduction end, the load on the wire is reduced, and the stable operation of the device is performed.

In the third aspect of the invention, the former and the spindle rotate relative to each other while the former fixes the armature, which is the work, during winding, so that proper alignment winding is performed.
Since the former is coaxially coupled to the central portion of the spindle, the spindle does not become large.

[0021]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in FIGS. 1 and 2, the spindle 1 is rotatably supported by a base 3 via a bearing 2. As shown in FIG. 4, the spindle 1 is connected to the motor 10 in the gear 4 by a chain 4A or the like,
It rotates about the rotation axis A.

In the present embodiment, as shown in FIGS. 3 and 4, four spindles 1 are provided in parallel on the base 3 and are connected by one chain 4A, The rotation of each spindle 1 can be controlled synchronously.

As shown in detail in FIG. 1, a nozzle 6 for guiding the wire 5 penetrates the spindle 1 obliquely. A wire rod 5 from a wire rod supply source (not shown) is introduced into the nozzle 6 from a wire rod introduction end 6A behind the spindle 1, and the wire rod 5 is guided by the nozzle 6 and fed out from a wire rod feeding end 6B in front of the spindle 1.

Here, the wire rod introducing end 6A is arranged on the rotation axis A, while the wire rod feeding end 6B is arranged at a point separated from the rotation shaft A by a predetermined distance. With such an arrangement, when the spindle 1 rotates, the wire rod feeding end 6B moves on the circumference around the work such as an armature (not shown) arranged on the rotation axis A thereof, and the wire to the work is wound. Is done. At this time, the work is held on the rotation axis A by a holding means (not shown).

An imaginary line shows how the nozzle 6 moves downward when the spindle 1 rotates.

At the center of the spindle 1, a former 9 is coaxially attached to a rotation axis A of the spindle 1 via a bearing 7.
And it is rotatably supported. When the armature of the motor is used as a work around which the wire 5 is wound, the former 11 is pressed against the magnetic poles of the armature, and the wire 5 is guided to the armature along the former 9, whereby It is one in which an aligned winding is made in the slot of the child. At this time,
Since the former 9 is pressed against the armature and its rotation is restricted during the winding, the spindle 1 rotates relative to the base 2 and the former 9 via the bearings 2 and 7.

As described above, in the present invention, the nozzle 6 is attached to the spindle 1 instead of the conventional hollow spindle and flyer.
The winding machine is significantly reduced in size and weight because it has a structure that penetrates diagonally. Further, since the former 9 can be installed coaxially with the rotation axis A in the central portion of the spindle 1, the former 9
The spindle 1 does not become large even when it is wound on the armature by using.

Further, since it is not necessary to provide a hole for inserting the wire 5 in the spindle 1, the structure is simplified and the manufacturing cost can be reduced.

The guide portion of the wire 5 is not limited to the one nozzle 6 as shown in FIG. 1, but various forms are possible as shown in FIGS. 5 to 12, for example.

That is, as shown in FIG. 5, by combining the nozzle 51 on the wire rod introduction end side and the nozzle 52 on the wire rod feeding end side and disposing them in the through hole 50 formed in the spindle 1 in an oblique direction, You may make it guide the wire rod 5.

Further, as shown in FIG. 6, a guide member 53 is provided on the rear surface side of the spindle 1 and a guide member 54 is provided on the front surface side thereof, and pulleys 55, 56 provided on these guide members 53, 54 are interposed therebetween. Alternatively, the wire 5 may be guided to the through hole 50 of the spindle 1.

Further, as shown in FIG. 7, guide members 61,
Small nozzles 63, 64 made of felt or the like provided on 62
The wire 5 can also be guided to the through hole 50 of the spindle 1 via the.

Further, as shown in FIG. 8, guide members 66,
The wire rod 5 may be guided by providing a wire rod introducing portion 68 and a wire rod feeding portion 69 made of ceramic or the like at the tip of 67.

Further, as shown in FIG. 9, a ring 7 made of ceramic or the like is provided at the inlet and the outlet of the through hole 50, respectively.
It is also possible to provide the wires 1 and 72 to protect the wire 5 while guiding it to the pulley 74 at the tip of the guide member 73.

Further, as shown in FIGS. 10 to 12, the through hole 80 may be formed parallel to the rotation axis A of the spindle 1. In these, the wire 5 is introduced into the through hole 80 while being protected by the rings 71 and 72.

Further, in FIG. 10, the wire 5 is guided on the rotating shaft A by the ring 75 made of ceramic or the like on the introduction side, and is guided by the pulley 74 on the feeding side.

Further, in FIG. 11, the guide on the introduction side of the wire 5 is provided by a pulley 76, and the payout side of the wire 5 is further guided to a wire payout part 77 made of ceramic or the like provided on the guide member 73.

Further, as shown in FIG. 12, the guide member on the feeding side may be omitted and the wire 5 may be pulled out to the work as it is.

The shapes of the guide portions of the wire 5 can be variously combined and are not limited to the above.

Next, the operation will be described.

During the winding work, a work (not shown) (armature in this case) is set at a predetermined position on the rotation axis A of the spindle 1 and fixed by the former 9.

The tip of the wire rod 5 fed from the wire rod feeding end 6B is fixed to a predetermined position of the armature, and then the spindle 1 is rotated to perform the winding work.

At this time, since the wire 5 is guided only by the nozzle 6 and the bending by the roller or the like in the conventional example is suppressed to a necessary minimum, even if the wire 5 is pulled out as the winding progresses, The risk of disconnection is reduced.

Further, since only the spindle 1 and the nozzle 6 rotate at the time of winding, and the weight thereof is light, vibration does not easily occur even at the time of high-speed rotation, and the bearings 2 and 7 are overloaded, and the work is damaged. The accuracy of the winding does not decrease. Further, the balance weight as in the conventional example is not required, and the device can be simplified.

When it is necessary to change the size of the work, it suffices to use nozzles 6 having different lengths. At this time, since the thickness can be adjusted by the intermediary member, it is easy to handle. is there. In this case, it is also possible to use the nozzle 6 whose length is adjustable in advance.

As described above, according to the present invention, not only is the device reduced in size and weight with a simple structure, but also the accuracy of the winding is improved and the operability of the device is also improved.

[0048]

According to the first aspect of the present invention, since the guide portion of the wire rod is formed by the guide which penetrates the spindle and rotates integrally, the wire rod winding mechanism is reduced in size and weight, and the wire rod is guided by the guide. Since it is guided through the spindle, the bending point of the wire can be eliminated or the bending angle of the wire can be reduced, disconnection is prevented, and the rotating part during winding is lightweight. Vibration at the time of high-speed rotation is suppressed, the accuracy of the winding is improved, and when a nozzle is used as a guide, it is easy to deal with works of different sizes by replacing the nozzle.

In the second aspect of the invention, since the wire rod introduction end of the guide is arranged on the rotary shaft of the spindle, the wire rod feeding end makes a circular motion around the work during winding, and the wire rod is wound around the work. On the other hand, the wire rod is kept at the same position of the spindle rotation center at the wire rod introduction end, the bending force is not applied to the wire rod, the wire breakage is prevented, and the stable operation is guaranteed.

In the third aspect of the invention, the former and the spindle rotate relative to each other while the former fixes the armature, which is the work, during winding, so that proper alignment winding is performed.
Since the former is coaxially coupled to the central portion of the spindle, the spindle does not become large.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is likewise an overall sectional view.

FIG. 3 is an overall plan view of the same.

FIG. 4 is an overall front view of the same.

FIG. 5 is a sectional view showing another embodiment of the same.

FIG. 6 is a sectional view showing still another embodiment.

FIG. 7 is a cross-sectional view showing still another embodiment.

FIG. 8 is a sectional view showing still another embodiment.

FIG. 9 is a sectional view showing still another embodiment.

FIG. 10 is a sectional view showing still another embodiment.

FIG. 11 is a sectional view showing still another embodiment.

FIG. 12 is a sectional view showing still another embodiment.

FIG. 13 is a sectional view showing a conventional example.

[Explanation of symbols]

 1 spindle 2 bearing 3 base 5 wire rod 6 nozzle 6A wire rod introducing end 6B wire rod feeding end 7 bearing 9 former A rotating shaft

Claims (3)

[Claims] 1. A spindle rotatably supported by a base through a bearing, a work which is statically held substantially coaxially with the spindle, and a wire rod which rotates integrally with the spindle and is wound around the work. And a guide that guides the wire rod, and the wire rod guided by the guide is eccentric from the rotation axis of the spindle and penetrates through the spindle. 2. The wire rod introduction end of the guide is arranged in the vicinity of the rotation axis of the spindle, and the wire rod feeding end of the guide is arranged at a predetermined distance from the rotation shaft of the spindle. Wire rod winding mechanism. 3. A former provided at the center of the spindle, which is rotatably coupled to the spindle via a bearing so as to be rotatable.
The wire rod winding mechanism described in.