JP2000060102A - Coil winding device and winding method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a coil winding device and a winding method thereof capable of manufacturing a continuous coil with good workability, at low cost, and with compactness. SOLUTION: This coil winding device 1 is roughly constituted of a winding device main body 2, a main shaft part 3, a polygonal column-shaped coil element retaining part 4, a winding part 5, and a wire feeding part 6. The main shaft part 3 is provided freely rotating relative to the winding device main body 2, with the coil element retaining part 4 and the winding part 5 mounted on the main shaft part 3. A wire is wound on a coil element C, by feeding a wire material L from the wire feeding part 6 and moreover rotating the coil element C mounted on the winding part 5. After the completion of winding on the coil element C, it is removed from the winding part 5 and fixed on the side of the coil element holding part 4. At this time, the wire material L is not cut.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coil winding device for manufacturing a coil which is a component of a linear motor or the like and a method of winding the coil.

[0002]

2. Description of the Related Art It is needless to say that coils are widely used in various electronic devices as a representative element constituting an electric circuit, but recently, in particular, the use of coils as components of a linear motor has been improved. With the start of providing permanent magnets, it has been widely implemented. As such a coil, for example, a coil as shown in FIGS. 5A and 5B is used. That is, this is the number of coils P
1, P2,... Are continuously connected via a connection portion Q (hereinafter, this is referred to as a "continuous coil").
, And a current is applied to the coils P1, P2,... In the direction in which the coils P1, P2,. A thrust is generated.

For manufacturing such a continuous coil, for example, a coil winding device as shown in FIG. 6 has been used. This coil winding device is provided on a winding device main body 2, a main shaft portion 3 rotatable by a rotation drive source (not shown) provided on the winding device main body 2, and a tip of the main shaft portion 3. It is schematically configured by a winding part 5 and a wire rod supply part 6. The wire rod is wound around the coil element C by supplying the wire rod L from the wire rod supply unit 6 and by rotating the coil element C attached to the coil unit 5 together. According to this, first, coils are manufactured one by one, and thereafter, by applying connection means typified by soldering to each other's coils, continuously connected coils, that is, continuous coils are manufactured. (See FIG. 5).

[0004]

However, the above-mentioned conventional method has the following problems when connecting each coil. Now, considering, for example, the case where soldering is employed as the connection means, in order to carry out the soldering, it is first necessary to remove the insulating film from the connection portion. Further, after the soldering is completed, an insulation treatment for the connection portion is required. In other words, the production efficiency is very poor due to the multiple steps involved in the connection work,
Alternatively, there has been a problem that a considerable amount of labor is required and the production cost is large. In addition, the fact that a plurality of work steps are involved has a problem in terms of securing the reliability of a completed product. It goes without saying that these problems become more serious as the number of connected coils increases.

[0005] When a continuous coil is mounted as a component of a linear motor, a space for accommodating the connection portion is required in addition to a space for accommodating the continuous coil body. This leads to an increase in the size of the linear motor.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances. It is an object of the present invention to manufacture a continuous coil at a low cost with good workability and to make the continuous coil compact. An object of the present invention is to provide a coil winding device and a winding method thereof.

[0007]

The present invention employs the following means in order to solve the above-mentioned problems. In other words, the coil winding device according to claim 1 is a coil winding device that winds a wire around a coil element set at a predetermined position to manufacture a coil. And a holding portion for holding at a position different from the predetermined position without cutting.

According to this device, after the wire is wound around the coil element, the holding portion for holding the coil element is provided without cutting the wire.
Thereafter, by setting a new coil element at a predetermined position, a continuous coil winding operation can be realized. This means that it is possible to manufacture a continuous coil having no connection between the coils.

Further, the coil winding method according to claim 4 is
A step of winding a wire around a first coil element set at a predetermined position to produce a coil, and the step of winding the first coil element having finished winding the wire around the predetermined position without cutting the wire. Holding at different positions.

This method can be said to be one of the most suitable methods for producing a continuous coil having no connection between the coils. In particular, this is the most suitable coil winding method when using the coil winding device according to the first aspect.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an explanatory diagram illustrating the overall configuration of the coil winding device according to the present embodiment. The coil winding device 1 includes a winding device main body 2, a main shaft portion 3, a coil element holding portion (holding portion) 4, a winding portion (predetermined position).
5 and a wire rod supply unit 6.

The winding device main body 2 is provided with a rotation drive source (rotation means) (not shown), and the main shaft 3 is attached to the rotation drive source. The main shaft portion 3 is installed so as to protrude from the winding device main body 2, and the protruding tip is provided with a winding portion 5 that rotates in synchronization with the rotation of the main shaft portion 3. Here, as shown in FIG. 1, a coil element C is mounted, and the wire L is wound around the coil element C by rotation.

The wire feeder 6 comprises a bobbin 6a, a tensioner 6b, and a traverser guide 6c. The bobbin 6a is a supply source of the wire L to be wound around the coil element C, and has a form in which the wire is stored in a reel shape. The tensioner 6b applies an appropriate tension to the wire L fed from the bobbin 6a. The traverser guide 6c functions as a guide device for the wire rod L from the tensioner 6b, and reciprocates as indicated by an arrow P in FIG. Things. A coil element C that does not generate "winding unevenness (or deviation)" or the like due to the reciprocating operation of the traverser guide 6c.
It is possible to wind the wire around the wire.

A coil element holding portion 4 is provided behind the winding portion 5, that is, in the middle of the protruding portion of the main shaft portion 3. The coil element holding section 4 also rotates together with the rotation of the main shaft section 3, similarly to the winding section 5 described above. The coil element holding portion 4 has a polygonal column shape. In the present embodiment, as shown in FIG. 2, it is a regular octagonal column.

Each side surface (a position different from a predetermined position) 4a, 4a of the coil element 4 which is a regular octagonal column
As shown in FIGS. 1 and 2, coil elements Ca, Cb,..., Ch corresponding to the number of sides are attached to b,. That is, in the present embodiment,
Eight coil elements C are attached. When these coil elements Ca,..., Ch have a core C1 formed of glass, epoxy resin or the like, as shown in FIG. 3, the core C1 has through holes C2, C2
Is formed on the side surface of the coil element holding portion 4, and the screws C3 and C3 are screwed into the screw portions,
The coil element C is fixed to the side surfaces 4a,..., 4h of the coil element holding portion 4. Further, when the coil elements Ca,...
As shown in the figure, a fixing member C4 using the air core portion is formed, through holes C5 and C5 are formed in the same manner as in the previous case, and screws C6 and C6 are screwed into the coil element. The attachment to the holding portion 4 is performed.

In consideration of the fact that the main shaft portion 3 is provided with the coil element holding portion 4 and the winding portion 5 described above, the material of the main shaft portion 3 is sufficiently rigid in terms of strength. It is desirable to select one with This is because, if the main shaft 3 does not have sufficient strength, “flexure” may occur at the tip provided with the winding 5, and the winding of the wire around the coil element C may not be performed accurately. Because. In order to prevent this inconvenience, it is effective to take measures for increasing the strength of the main shaft portion 3 and to configure the winding portion 5 with a lightweight material different from the main shaft portion 3. Become.

Hereinafter, an example of manufacturing a continuous coil using the coil winding device 1 having the above configuration will be described. More specifically, nine coil elements Ca, C
An example of manufacturing a continuous coil by winding the wire L around b,..., Ch, C will be described. First, the coil element Ca is attached to the winding part 5 (predetermined position), and the end of the wire L fed from the wire supply part 6 is connected to the tensioner 6.
b, coil element C through traverser guide 6c
After being hooked on a predetermined portion in a, the rotation drive source of the winding device main body 2 is operated, that is, the coil element Ca is rotated. At this time, the coil element holding unit 4 is also rotating. Coil element C
The wire L is wound around a by this rotation. During the winding operation, the traverser guide 6c repeats the reciprocating movement indicated by the arrow P shown in FIG. 1 so as to prevent "wire unevenness" from occurring in the wire L wound around the coil element Ca.

Eventually, the winding of the wire around the first coil element (first coil element) Ca is completed.
When one coil is completed, the rotation drive source is stopped, and the coil element Ca is removed from the winding part 5. Then, this is attached and held on one side surface (a position different from the predetermined position) of the coil element holding portion 4, for example, the side surface 4a. At this time, the wire L connected to the coil element Ca from the wire supply unit 6 is not cut.
Then, a new coil element (second coil element) Cb is attached to the winding portion 5, and the predetermined portion is
A part of the uncut wire L described above is bitten.

When the above operation is completed, the rotary drive source is operated again. As a result, the wire L continuous with the wire L wound around the first coil element Ca is wound around the newly attached coil element Cb. At this time, since the winding part 5 and the coil element holding part 4 are rotating simultaneously, the first coil element Ca and the new coil element Cb
And the wire L that has begun to be wound around the new coil element Cb is not complicated.

Hereinafter, new coil elements Cc to Cc
The wire L is wound around Ci by the same method as described above. FIG. 2 shows a state in which the wire L has been wound around the eight coil elements Ca,..., Ch by the above method, and the wire has been wound around the ninth coil element C. As shown in this figure, in each of the coil elements Ca,..., Ch, C, the wire L is continuously wound. Since the coil element holding portion 4 is an octagonal column, it is understood that the coil elements Ca,..., Ch are arranged in an orderly and stable state. Also, from the standpoint of considering the fact that the coil element holding section 4 must rotate simultaneously with the winding section 5,
It can be said that the form of the coil element holding portion 4 in the present embodiment is optimal.

As described above, in the coil winding device 1 according to the present embodiment, since the winding portion 5 and the coil element holding portion 4 are provided in the production of the continuous coil, the wire is connected to all the coil elements. It is possible to manufacture a continuous coil having no connection parts, in other words, a continuous coil having no connection portion. Accordingly, the continuous coil manufactured by the coil winding device 1 does not require a connection work such as “soldering” which was conventionally required, and the manufacturing efficiency can be improved. In addition, the manufacturing cost can be reduced, and the reliability of the finished product can be increased.

Further, the continuous coil can be said to be made compact because it does not have a connection portion. However, when the continuous coil is mounted as a component of a linear motor, a special portion for accommodating a connection portion conventionally required is provided. No installation space is required. In other words, when mounting this continuous coil,
There are no special restrictions on its location,
Including the arrangement of other devices that make up the linear motor,
A relatively free installation situation can be assumed at the design stage.

The coil winding device 1 is not limited to the above embodiment. For example, in the above description, the winding part 5 and the coil element holding part 4 provided on the main shaft part 3 rotate together, and the wire rod supply part 6 is stopped. It may be. That is, the winding unit 5 and the coil element holding unit 4 may stop and the wire supply unit 6 may rotate. Even in this case, it is apparent that the wire L can be wound around the coil element C in the same manner as described above.

The coil element holding portion 4 is not limited to a regular octagonal column. That is,
This may be a regular hexagonal column or a regular dodecagonal column. In each of these cases, 7
A continuous coil in which three coil elements are connected, and 13 continuous coils can be manufactured. In this connection, the fact that the form of the coil element holding portion 4 is a polygonal column includes a corresponding effect as described above, but it is not always necessary to stick to the polygonal column in some cases. Absent. The point is that there is no problem in other forms as long as the member can hold the coil element around which the wire L is wound. The present invention includes such a situation within its concept.

The coil manufactured in the present embodiment is used as a coil of a linear motor as described above. The linear motor is applied to, for example, an exposure apparatus that exposes a mask pattern to a substrate such as a wafer. Specifically, it is applied as a drive source for a mask stage that moves while holding the mask or a substrate stage that moves while holding the substrate.

[0026]

As described above, the coil winding device according to the first aspect of the present invention is provided with the holding portion for holding the wound coil element without cutting the wire, so that the continuous winding of the wire is achieved. That is, a continuous coil having no connection portion can be manufactured. This makes it possible to omit the connection work such as "soldering" which was conventionally required for manufacturing a continuous coil, and to improve the productivity of the continuous coil. In addition, the manufacturing cost can be reduced, and the reliability of the finished product can be increased. By the way, when this continuous coil is provided in a certain device as a component such as a linear motor, it is not necessary to prepare an installation space for a connection portion which has been conventionally required. That is, when mounting this continuous coil, a relatively free installation situation can be assumed at the design stage without any particular restrictions on the installation location.

[0027] The coil winding device according to claim 2 is
Since the position where the wire is wound and the holding portion rotate synchronously, the wires related to the coil elements at the winding position and the holding portion are not complicated when the continuous coil having no connection portion is manufactured. .

Further, according to the coil winding device of the third aspect, the holding portion is a polygonal column, and the coil element is provided on a side surface of the polygonal column. This is the case in the production of a continuous coil without the connection
It can be said that this is the most suitable form of the holding portion.

According to a fourth aspect of the present invention, there is provided a method of manufacturing a continuous coil, comprising the step of holding the wire without cutting the wire in the first coil element after winding the wire. It can be said that this is one of the most suitable. In particular, when the above-described coil winding device is actually used, it can be said that this is the most suitable coil winding method.

Finally, in the coil winding method according to the fifth aspect, since the second coil element is set at a predetermined position following the first coil element, the winding of the wire can be performed continuously. means. Therefore, it can be said that this is also one of the most suitable methods for manufacturing a continuous coil, and it can be said that this is the most suitable coil winding method when using the above winding device.

[Brief description of the drawings]

FIG. 1 is a side view showing a coil winding device.

FIG. 2 is a front view showing a winding unit and a coil element holding unit of the coil winding device shown in FIG.

FIG. 3 is an explanatory view showing a state in which a real core coil element is attached to a coil element holding portion.

FIG. 4 is an explanatory view showing a state in which an air-core coil element is attached to a coil element holding portion.

5A and 5B are explanatory views showing a continuous coil, wherein FIG. 5A is a plan view, and FIG. 5B is a cross-sectional view taken along the line AA ′ shown in FIG.

FIG. 6 is a side view showing a conventional coil winding device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Coil winding device 4 Coil element holding part (holding part) 4a-4h Coil element holding part side surface (position different from predetermined position) 5 Winding part (predetermined position) C, Ca-Ch Coil element L Wire rod

Claims (5)

[Claims] 1. A coil winding device for manufacturing a coil by winding a wire around a coil element set at a predetermined position, wherein the coil element having finished winding the wire is placed at the predetermined position without cutting the wire. A coil winding device comprising a holding portion for holding at a position different from the above. 2. The coil winding device according to claim 1, further comprising a rotating unit configured to rotate the predetermined position and the holding unit in synchronization with each other. 3. The coil winding device according to claim 1, wherein the holding portion is a polygonal column, and the coil element is attached to each side surface of the polygonal column. 4. A step of winding a wire around a first coil element set at a predetermined position to produce a coil, and the step of winding the first coil element after winding the wire.
Holding the wire at a position different from the predetermined position without cutting the wire. 5. The coil winding method according to claim 4, further comprising the step of setting a second coil element different from said first coil element at said predetermined position. .