JPS63213334A - Toroidal winding machine - Google Patents

Abstract

PURPOSE:To perform terminal fixing processing for a conductor without disconnection, by guiding one end of a conductor through a guide groove of a fixing jig so that an operation of holding a terminal part of the conductor is automatically performed. CONSTITUTION:A conductor terminal processing means 18 is provided with a conductor guide 25, which guides a conductor C into a guide groove 11a formed on a side of a fixing jig 11, and a clamper 26, which is disposed on the rear side of this conductor guide 25 so as to grip and fix the terminal part of the conductor C. The conductor guide 25 is moved forward and backward to the conductor C along the guide groove 11a by the operation of a swinging arm 29 due to rotation of a rotor 27. When the conductor C is initially passed through the winding hole A in the forward position of the guide 25, air 31 is sprayed on the back part of a magnetic head core W, and a terminal part of the conductor C is exactly guided to the guide groove 11a. After the clamper 26 is disposed to grip and fix the terminal part of the conductor C, it moves backward to the position where it does not interfere with a work station. Hence, terminal fixing processing for the conductor can be performed automatically without disconnection.

Description

TECHNICAL FIELD The present invention relates to a toroidal winding machine for winding a wire such as a coil around a closed winding hole.

"Prior Art and its Problems" A toroidal winding machine is known as a machine that winds a wire such as a coil around a closed hole such as a winding hole of a magnetic head or a motor rotor. However, all conventional winding machines
The wire is wound by rotating the arm that holds and releases the wire inserted through the winding hole around the workpiece that has the winding hole, which increases the size of the device and complicates the structure. I couldn't deny it. In particular, when winding a wire into a very small winding hole, such as the winding hole of a magnetic head, it is virtually impossible to apply conventional equipment to this.
In reality, winding was done manually by workers.

``Object of the Invention'' The present invention solves the problems of the conventional device, is compact, is suitable for winding in the winding hole of small parts such as a magnetic head, and is capable of fixing the ends of the wire during winding. The object of the present invention is to obtain a toroidal winding machine that can automatically perform wire winding without disconnection.

"Summary of the Invention" The present invention fundamentally changes the basic configuration of conventional devices in which an arm holding a wire rod is rotated around the workpiece, and uses a new system in which a table supporting the workpiece is rotated. It was completed based on this idea.

That is, in the present invention, a workpiece having a winding hole is supported via a fixing jig on a rotary table that rotates intermittently at 180 degrees, and one end of a wire to be inserted into the winding hole of the workpiece is placed on the rotary table. is received by the air blown toward the workpiece and guided into the guide groove of the fixing jig, and a wire end treatment means for supporting the end of the wire is provided, and roughly on both sides of this rotary table, A pair of left and right moving arms that can move forward and backward with respect to the rotary table are provided, and each of the left and right moving arms is rotatable about a rotation axis parallel to the rotation axis of the rotary table to hold and release the wire. The free end side of the wire supporting the hand and whose one end is supported by the wire end processing means is synchronously moved toward and away from the rotary table in a stopped state by the movable arm and the wire of the hand. The wire is repeatedly inserted into the winding hole of the workpiece and wound by the holding/release movement of the workpiece, the direction change movement by the rotation of the hand, and the rotational movement of the rotary table.

"Embodiments of the Invention" The present invention 18 will be described below with regard to the illustrated embodiments. FIGS. 2(a) and 2(b) show workpieces targeted by the present invention.
This figure shows a magnetic helad core W, which has a winding hole A closed at one end.

This toroidal winding machine for winding a coil around the winding pillar B at the outer end of the winding hole A of the magnetic head core W fixes the magnetic head core W as shown in FIGS. 1 and 3. A rotary table 13 on which a workstation 12 is mounted via a jig 11, left and right moving arms 14.15 of this rotary table 13, and this moving arm 14.15.
The main components include hands 16 and 17 provided at the tip of the magnetic helad core W, and a wire end processing means 1 for supporting one end of the wire to be inserted into the winding hole A of the magnetic helad core W on the rotary table 13. The fixing jig 11 removably supports the magnetic head core W using, for example, a vacuum mechanism. Further, the rotation center O of the rotary table 13 coincides with the bisector of the winding hole A of the magnetic herad core W in the left-right direction.

The moving arm 14.15 is movable from side to side in FIG. 1 by means of a known feed mechanism including a feed screw 19.20. The hands ]6, ]7 at the tip of the moving arm 14.15 are
It holds and releases the wire C to be inserted into the winding hole A, and has a pair of claw members 22 that can be opened and closed around the bin 21, as shown in FIG. The wire C is held between the tips of the claw members 22. 23 is an air actuator that opens and closes the claw member 22. The holding position of the wire C by the hands 16 and 17 coincides with a straight line passing through the rotation center O of the rotary table 13.

The hand 16.17 is also supported by the moving arm 14.15 so as to be rotatable about a rotation center P at a point on this straight line. 24 is a rotation actuator. This rotary actuator 24 rotates the hands 16 and 17 by 180°.
7ii-The hand 16, 17 is rotated so that, in the stopped state, the pair of claw members 22 thereof are symmetrical with respect to a straight line. In other words, the wire CI located on the M wire! Can be held and released.

The rotary table 13 also rotates intermittently by 180 degrees, and its stopping position is at the winding hole A of the magnetic helad core W.
In other words, this is the position where the wire rod C transferred on a straight line passes through the winding hole A.

The wire end processing means 18 guides and fixes the end of the wire C opposite to the free end thereof, and is shown in FIGS. 5 to 7. This wire end processing means 18 is
A guide groove 11 formed on the side surface of the fixing jig 11 holds the wire C.
The wire rod guide 25 is provided with a wire rod guide 25 that guides the wire rod C, and a clamper 26 that is arranged behind the wire rod guide 25 and clamps and fixes the end of the wire rod C. The wire guide 25 is connected to the end of a swinging arm 29 fixed to a rotating shaft 28 of a rotor 27 via a pin 30, and as the swinging arm 29 swings due to the rotation of the rotor 27, the guide groove 1 ]a, it can move forward and backward with respect to the wire C. Such a wire rod guide 25 is adapted to receive the wire C between two opposing upper and lower guide plates 25a and 25b, and the inner surface of the tip has a tapered surface 25ci that widens toward the tip. . and,
In the forward position, when the wire C is first passed through the winding hole A, air 31 is blown toward the rear of the magnetic rad core W, thereby ensuring that the end of the wire C is guided into the guide groove 11a. do. Further, after the clamper 26 clamps and fixes the end of the wire C, the wire guide 25 retreats to a position where it does not interfere with the workstation 12.

A coil holding mechanism 32 is provided on the rough rotary table 13. As shown in FIG. 8, this coil holding mechanism 32 has a holding arm 35 fixed to the rotor 34 of the rotary actuator 33, and the tip of this holding arm 35 contacts the outside of the winding column B of the magnetic herad core W. presser foot rubber 3
6r8 is the seventh one. Such a coil holding mechanism 3
2 brings the presser rubber 36 into contact with the outside of the winding column B to prevent the wire rod C'b wound around the winding column B from loosening. While the rotary table 13 is rotating, the presser arm 35 and the presser rubber 36 are magnetically released from the rad core W, as shown by the double-dot chain line.

In FIGS. 1 and 2, 37 is a wire reel wound with 0% wire, 38 is a holder that holds 0% wire drawn out from this wire reel 37, and 39 is a cutter for cutting the wire C. Both are moved up and down in a straight line by the cylinder device 40.

This device having the above configuration operates as follows. The wire C is pulled out from the wire reel 37, and its tip is held by a guide (not shown). First, when the movable arm 15 is in the backward position M (a position away from the rotary table 13, the same applies hereinafter), the hand 17 grasps the tip of the wire C, and moves the movable arm 15 forward to a predetermined position (moves toward the rotary table 13). , hereinafter the same), the wire C is pulled out by a certain amount. As the wire C is drawn out, the holder 38 and cutter 39 are raised by the cylinder device 40. After the holder 38 holds the wire C1Fr and the cutter 39 cuts the wire C, the holder 38 releases the wire C, and then
The cylinder device 40 allows the cutter 39 and the retainer 38 to
descends. The hand 17 moves forward by the movable arm 15 and inserts the tip of the wire C held therein into the winding hole A of the magnetic core W.

At this time, the hand 16 is waiting at an advanced position relative to the rotary table 13 by the movable arm 14, and its claw portion 22 grasps the free end of the wire C inserted into the winding hole A, and at the same time, the hand 17 Release wire C. The free end of the wire C is now transferred to the hand 16. By the time of this delivery, the wire guide 25 is already waiting at the forward position jθ on the side surface of the fixing jig 11. Then, air 31 is applied to the other end of the wire C toward the magnetic rad core W.
By spraying the other end of the wire C, the tapered surface 25
It enters the gap between the guide plates 25a and 25b from c. From this gap, the wire C is roughly and reliably guided to the guide groove 11a of the fixing jig 11 by the air 31. Then,
The end of the wire C is clamped and fixed by the rear clamper 26. Thereafter, the wire guide 25 retreats to a position where it does not interfere with the magnetic head core W, and waits until the next new wire C is inserted into the winding hole A of another magnetic head core W for the first time.

In the above process, a predetermined length of wire C is taken out, the free end of which is inserted into the winding hole A of the magnetic head core W, and the other end is inserted into the clamper 2 on the rotary table 13.
This means that it has been fixed to .

Next, the transfer/work arms 14 and 15 are moved to the rotary table 1.
The rotary table 13 is moved back to a position where it does not interfere with the rotary table 13.
rotates 180° in the direction indicated by the arrow in FIG. 9(a).

Then, the winding column B of the magnetic hesito core W has the M9 diagram (b
), the wire C is wound for half a turn.

In this state, the coil presser $11111132 is
The presser rubber 36 is brought into contact with the outside of the winding column B to prevent loosening, and the hand 16 is connected to the rotary actuator 24.
This is also rotated by 180°, and the tip tjs of the wire C held thereon is again magnetized and directed toward the cytocore W.

The backward moving arm 14 moves forward toward the rotary table 13 and inserts the tip of the wire C into the winding hole A. Moving arm 1
5 has come to the forward position again by this time and receives the tip of the wire C that has been inserted into the winding hole A with its hand 17, while the hand 16 of the other movable arm 14 picks up the wire C that was not held yet. turn over

Next, the movable arms 14 and 15 retreat again to a position where they do not interfere with the rotary table 13, and at this time, the hand 17 of the movable arm 15 tightly winds the wire C around the winding hole A.

Hereinafter, the presser rubber 36 of the coil presser mechanism 32 is withdrawn from the winding column 8, the rotary table 13 is rotated 180 degrees, the presser rubber 36 of the coil presser mechanism 32 comes into contact with the winding column B, and the moving arm 14.15 moving arm 1 forward relative to rotary table 13, transferring wire C between hands 16 and 17, moving arm 1
By the continuous operation of 4 and 15 retreat, the magnetic core W
A wire rod C is wound around the winding hole A.

When it is necessary to wind the magnetic sheet core W in an aligned manner around the winding column 8, every time the rotary table 13 rotates,
Wire C in c-line motion! ! It is possible to raise or lower the magnetic head core W by an amount corresponding to the diameter.
A guide 11 for guiding to the drilling hole A can be added.

Although the present invention has been described above using a magnetic hesitocore as an example, the present invention can be applied to all cases where windings are applied to other closed holes, such as a rotor of a morph.

"Effects of the Invention" As described above, the toroidal winding machine of the present invention has a basic configuration in which the table that supports the workpiece rotates, and the arm equipped with the hand that holds and releases the wire moves relative to the rotary table. Therefore, compared to a conventional device in which the arm rotates outside the table, the device can be significantly miniaturized and the structure can be simplified. Also,
The wire end processing means automatically guides one end of the wire to the guide of the fixing jig and supports the end of the wire, so the end fixing process of the wire does not have to be done manually. This can be done without interruption, and work efficiency is improved.

[Brief explanation of the drawing]

Figure M1 is a plan view of the toroidal winding VJ machine according to the present invention, Figure 2 is a magnetic hesito core as a workpiece targeted by the present invention, (a) is its front view, (b) is its top view, M3
Figure f is a front view of Figure 1, Figure 4 is a front view of the hand portion of the present invention, Figure 5 is a front view of the wire end treatment means of the present invention, and Figure 6 is an enlarged perspective view of the main part of the fifth factor. Fig. 7 is a plan view of Fig. 5, Fig. M8 is a front view of the coil holding mechanism provided in the present invention and its surroundings, and Fig. 9 is a magnetic core on the rotary table and the winding of this magnetic head core. This figure schematically shows the relationship between a wire inserted into a hole and a hand that grips the wire, with (a) showing the state g of the rotary table before rotation, and (b) 1. FIG. 3 is a schematic plan view showing the state WB after the rotary table has rotated 180 degrees. W...magnetic core, A...S! ! Hole, B...
Winding column, C...Wire rod, 11...Fixing jig, 12...
・Work station, 13...Rotary table, 14
．． 15...Moving arm, 16.17...Hand, 1
8... Wire rod end processing means, 22... Claw member, 25...
... wire guide, 26 ... clamper, 27 ... rotor, 29 ... rocking arm, 32 ... coil holding mechanism,
35... Presser arm, 36... Presser rubber, 37...
- Wire reel, 38... retainer, 39... cutter, 40... cylinder device. Patent Applicant Alps Electric Co., Ltd. Agent Kunio Miura Shigeru Matsui Figure 1 ■ (a) (b) Figure 2 ZZ Figure 4 Figure 8 Figure 5 Figure 6 Figure 7 (a) Figure 9

Claims (1)

[Claims] (1) A rotary table that supports a workpiece having a winding hole via a fixing jig and rotates intermittently by 180 degrees: Air is blown toward the workpiece so that one end of the wire to be inserted into the winding hole of the workpiece is A wire end processing means installed on the rotary table receives the wire rod and guides it into the guide groove of the fixing jig, and supports the end of the wire. A pair of moving arms: and a hand for holding and releasing a wire rod, which is rotatable about a rotation axis parallel to the rotation axis of the rotation table and supported by the left and right movement arms, respectively, and one end of the wire rod is The free end side of the wire supported on the rotary table by the wire end processing means is synchronously moved toward and away from the rotary table in a stopped state, the movement of the hand to hold and release the wire, and the hand A toroidal winding machine characterized by repeatedly inserting the wire into a winding hole of a workpiece and winding the wire through a direction change motion caused by the rotation of the workpiece and the rotational motion of a rotary table.