JPS6020757A - Winding device of toroidal coil - Google Patents

Abstract

PURPOSE:To continuously form a winding smoothly by passing a wire material through a core hole of a toroidal core, gripping the free end of the wire material, pulling it, and rotating the toroidal core in this state. CONSTITUTION:A wire material gripped by first gripping means 23 is passed through the core hole of a toroidal core TC held by a core drive means 6. Then, the free end of the wire material passed through the core hole and gripped by second gripping means 44 is again gripped by the first gripping means 23, and the material is pulled as required. The material is wound once by rotating once the core TC by core drive means in the state. When these series of operations are repeated several times, a toroidal coil of arbitrary number of turns is obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a winding device for winding a wire around a toroidal core to make a toroidal coil. In order to prevent bending of the wire gripped by the gripping means that passes through the core hole of the
It is an object of the present invention to provide a novel toroidal coil winding device which is capable of performing the same functions as those described in No. 11.

BACKGROUND TECHNOLOGY AND PROBLEMS Conventionally, when attempting to automatically create a toroidal coil by passing a wire through the core hole of a toroidal core and winding it around a Loytal core, the free end of the wire is Hold the M911 to face the core hole of the toroidal core, then move the gripping means toward the core hole to pass the wire through the core hole, and insert the free end of the wire passed through the core hole into another The wire is gripped by the gripping means, and then the free end of the wire is gripped again by the previous gripping means and the wire is pulled appropriately, the toroidal core is rotated once and the coil is wound once,
It is possible to obtain a toroidal coil with an arbitrary number of turns by repeating such a series of operations several times.

However, the toroidal cores used in the magnetic heads of video cheap recorders and electronic computers are extremely small, and winding the wire around them requires passing the wire through extremely small core holes. The free end of the wire gripped by the gripping means is easily bent, and it is extremely difficult to automatically pass the wire through the core hole. Therefore, when winding wire on a minute toroidal core, it was necessary to rely on manual labor.

Purpose of the InventionAccordingly, the present invention can prevent the wire held by the gripping means for passing the wire through the toroidal core from being bent, and can smoothly and continuously wind several turns of the wire. The present invention aims to provide a novel toroidal coil winding device as described above.

Structure of the Invention In order to achieve the above object, the winding arrangement of the toroidal coil of the present invention includes a core driving means that holds a toroidal core and rotates the toroidal core about an axis perpendicular to the axial direction of the core hole. Then, grasp the free end of the wire with one end fixed at a predetermined position and pass it through the core hole of the toroidal core, and then grasp the free end of the wire that has passed through the core hole again and remove the wire. a pair of first gripping means that pulls the wire so as to apply tension, and the first gripping means regrips the M end of the wire passed through the core hole by the first gripping means. a second gripping means that grips the toroidal core and passes it to the first gripping means; and a core hole of the toroidal core and the first
Play of the wire gripped by the gripping means ☆〃1; digit 1
position detecting means for detecting the position 16, and position detecting means for detecting the core holding means 16 and the first position detecting means according to the position detection result by the detecting means.
a position adjusting means for adjusting the position 1ξ relationship with the gripping means so that the free end of the wire faces the core hole of the toroidal coil winding device; And, the grip (B) is kept movable in parallel along the tensile direction of the wire! 5, and an elastic means interposed between the gripping part and the retaining part.

EXAMPLES Below, the winding system H of the toroidal coil of the present invention will be explained in detail according to the embodiments shown in the drawings.

The drawings are for explaining an embodiment of the toroidal coil winding device of the present invention, and FIG. 1 is a plan view of the winding device. In the drawings, reference numeral 1 denotes a conveyor that intermittently conveys the toroidal core TC held in a jig J according to the direction shown by arrow a, and a pair of positioning pieces 2a and 2b are provided at mutually opposing positions on both sides of the conveyance path. There is. The positioning pieces 2a, 2b are supported at one end by a rotating shaft 3.3, and are rotated by the rotating shaft 3.3 to be in a state jfJ for positioning the toroidal core TC or to be in an open state. .

4 is a core transfer mechanism a, which transfers the unwound toroidal core TC positioned by the positioning pieces 2a and 2b to the core holding part of the core drive mechanism, which will be described later, and also transfers the wire-wound toroidal core TC to the core holding part. from there to the positioning section of the conveyor 1. 5 is a transfer arm of the core transfer mechanism 4, and one end of the transfer arm transfers the core 4j! It is moved up and down and rotated by i4+'l4, and the toroidal coil TC is transferred at the tip.

6 is a core drive mechanism that holds and drives the toroidal core TC. FIG. 2 is a view of the core drive mechanism 6 viewed from the direction indicated by arrow A in diagram m1. Reference numeral 7 denotes a core holding part that holds the jig J holding the toroidal core TC, and has an L-shaped side surface.One piece (holding piece) 7a holds the jig J, and the other piece 7b holds the jig J.・Fixed to Ndroke 8. This core holding part 7 normally holds the toroidal core TC via a jig J in a direction in which the axis of the core hole H is parallel to the vertical axis, that is, the Z axis, and when the head rotor 8 is rotated, Accordingly, Z passes through the center of piece 7b.
It rotates 360 degrees around an axis perpendicular to the axis, that is, the Y axis.

9 is a pulse motor that rotates the rotor 8. 1
o is a clamp piece for holding the toroidal core holding jig J on the holding piece 7a of the core holding part 7; 12 is a spring that biases the clamp piece 1o so as to press the clamp piece 10 or the jig J against the holding piece 7b of the core holding part 7, and 13 is a spring that puts the clamp piece 1o in a released state. <l, A piston rod that is reciprocated in the Y-axis direction by a clamp release cylinder, and its tip is the lower end of the clamp piece 10.

By pushing in the Y-axis direction, the jig J that holds the toroidal core TC can be released from the core holding part 7. Reference numeral 14 denotes a mounting table on which a head rotor 8 for rotating the core holding part 7 and a rotor rotation pulse motor 9 are mounted. The mounting table 14 has a slide member 15 on its bottom surface.
is fixed, and the slide member 15 is supported by a support member 16 so as to be slidable in the X-axis direction perpendicular to both the Z-axis and the Y-axis. Reference numeral 17 denotes a driving pulse smoke for moving the slide member 15 in the X-axis direction with respect to the support member 16 by an X-axis direction movement mechanism (not shown). The support member 16, the X-axis moving mechanism and the drive pulse motor 17 are supported as a whole by a Y-axis moving mechanism 18 so as to be slidable in the Y-axis direction, and 19 is a moving mechanism 18 that moves in the Y-axis direction. This is a pulse motor that serves as the driving source. Reference numeral 20 denotes a base that supports the moving mechanism 18, and the base 20 is supported by the moving mechanism 21 so as to be slidable in the X-axis direction. 22 is a pulse motor that serves as a driving source for the moving mechanism 21.

Thus, the toroidal core TC is held by the core holding part 7 of the core drive mechanism 6 via the jig J, and is rotated about the Y axis by the rotation of the pulse motor 9.
It is caused to reciprocate along the X+l+I+ direction by the pulse motor 17, it is moved back and forth in the Y-axis direction by the pulse motor 18, and it is moved back and forth along the X-axis direction by the pulse motor 19.

23 is a first gripping mechanism for gripping the wire W, and FIG. 3 shows the first handle JI mechanism 2 from the direction of arrow B in FIG.
This is a view of No. 3. 24 is a clamp, 1 occupancy j fixed piece 25
and a movable piece 26 rotatably supported by the fixed piece 25. The movable piece 26 is formed into an L-shape when viewed from above, and is supported by the fixed piece 25 at its corner fjJl, and a wire rod is inserted between the tip of the long piece and the tip of the fixed piece 25. The distal end of the handle extends perpendicularly to W (in the X-axis direction) and is gripped. 1: The Imachi moving piece 26 is kept in a gripped state by being biased by a spring (not shown), and the tip of the short piece 27 is pressed toward the toroidal core TC side (hereinafter referred to as the front side) by the piston rod of the clamp release cylinder 28. This will result in a release state.

The clamp 24 is held by a clamp support piece 29 so as to be movable in parallel along the X-axis direction.

Specifically, as shown in FIG. 4(a), the clamp 24 is connected to the clamp support piece 29 through a parallel link 30, 30 so as to maintain a parallel state above the clamp support piece 29. A spring 31 is interposed between the clamp support piece 29 and the clamp support piece 29 in a compressed manner. 32 is a tension detection switch provided upwardly from the clamp support piece 29 at an appropriate distance NL and 1η. Then, with the clamp 24 gripping the wire W, the clamp support piece 29 is raised, and tension Iy is applied to the wire W.
i=fourth section] As shown in (b), the position of the clamp 24 relative to the clamp support piece 29 is displaced downward against the elastic force of the splinter 31, and the tension applied to the wire W reaches a certain value. Then, the cut lamp 24 contacts the tension detection switch 32 and the tension detection switch 3
2 is set to turn on. Therefore, the tension detection switch 32 can detect whether the tension for km, 4J, and W has reached a constant value of i+l'i.

The reason why the clamp 24 is held so as to be able to move in parallel by the clamp support piece 29 is as follows. That is, previously, the clamp 24 was rotatably supported by the first gripping mechanism 23 at its base.

In the past, one person considered installing a spring that biased the clamp 24 in a direction of rotation that would pull the wire rod. However, in this case, the first gripping mechanism 23 is used to tighten the clamp 24, and the clamp 24 is used to bend the wire W at 11 so that the wire can be tightly wound around the toroidal core TC. When the clamp 24 is in this state, it rotates around the supported part (()) against the elastic force of the spring. The tip of the wire W is bent by the rotation of the clamp 24, depending on whether the wire W is not in tension or when tension is applied to the wire W. Therefore, the end of the wire W is bent by the rotation of the clamp 24. We encountered the problem that the free end of the wire W could not be smoothly passed through the core hole H by the F mechanism 23.Therefore, when tension was applied to the wire W by the clamp 24, the clamp did not rotate. Rather than moving in parallel, the free end of the wire W is prevented from being bent.

33 is a clamp support piece 29 and a clamp release cylinder 28
, a holder that holds the tension detection switch 32, is held by a guide body 34 so as to be vertically movable, and is moved in the Z-axis direction by an elevating mechanism 35 while being guided by the guide body 34. 36 is a pulse motor that serves as a driving source for the lifting mechanism 35.

The lifting mechanism 35, the drive motor 36, and the guide body 34 are fixed to a moving body 37 that reciprocates in the Y-axis direction. 38
39, 40, 41 are switches driven by the switch driving rod 38, which are arranged in order from top to bottom on the movable body 37, until the holder 33 reaches the upper limit point. When the holding body 33 reaches the lower limit point, the switch 39 is turned on, when the holding body 33 is at the origin (the height of the holding body 11 in normal conditions), the switch 40 is turned on, and when the holding body 33 reaches the lower limit point, the switch 41 is turned on. It has become so.

42 is a moving mechanism 42 for reciprocating the moving body 37 in the Y-axis direction. 43 is a moving cylinder which is a driving source of the moving mechanism.

The first gripping mechanism shown in FIG. 3 can be brought into a state where it grips the wire W or into a released state by operating the clamp 24 with the clamp release cylinder 28. Further, the clamp 24 can be moved in the Z-axis direction by a pulse motor 36, and the moving cylinder 4
3, it is possible to reciprocate in the Y-axis direction.

44 is a second gripping mechanism that grips the wire W, and FIG. 5 is a view of the second gripping mechanism 44 viewed from the direction of arrow C in FIG. A clamp 45 includes a fixed piece 46 and a movable piece 47 rotatably supported by the fixed piece 46.

The movable piece 47 is formed in an abbreviated shape when viewed from above, and is supported by a fixed piece 47 at its corner, and a wire W is inserted between the tip of the long piece and the tip of the fixed piece 47. The tip extending vertically (in the Z-axis direction) is gripped. The movable piece 47 is urged by a spring (not shown) to maintain the gripping state, and is released by pressing the tip of the short piece 48 by a clamp release cylinder 49. A wire rod guide body 50 is fixed to the bottom surface of the fixed piece 47, and serves to guide the wire W to be gripped to the clamp 45 so that it can be easily gripped. As shown in FIG. 6, the wire guide body 50 has a guide groove 51 that becomes wider toward the bottom. The clamp 45 and clamp release cylinder 49 are fixed to a holder 52. 53 is a lifting device that moves the holding body 52 in the Z-axis direction; 54 is a pulse motor that serves as a driving source for the lifting device 53;
55 is a guide body that guides the holding body 52 in the Z-axis direction. These maintenance holidays 52, unloading device 53 and guide body 55
is fixed to one side of a vertical retaining plate 56, and the lower end of the vertical retaining plate 56 is supported by a moving mechanism 57. The moving mechanism 57 reciprocates the vertical holding plate 56 in the X direction, and 58 is a moving cylinder serving as its driving source.

Although not shown in FIG. 1, a video camera CA (see FIG. 6) is provided above the toroidal core TC held by the core holding mechanism 6. The video camera CA is for detecting the position of the core hole H and the position of the free end of the wire W held by the clamp 24 of the first gripping mechanism 23. Also, when looking at the winding device from the direction of the arrow in FIG.
A lamp for irradiating the toroidal core TC is arranged diagonally below and to the left of C (downward means the back side of the paper in FIG. 1), and a wire W is placed diagonally above and to the right of the toroidal core TC (the top means the side of the paper in FIG. 1). A lamp is arranged to illuminate the free end of the shaft.

Operation Example 1 FIGS. 6(a) to 6(i) show changes in the state of one of the operation examples of the winding device shown in FIGS. 1 to 5 in the order of operation. This figure shows the toroidal core TC viewed from the direction of the arrow shown in FIG. 1, and the operation will be explained according to this figure. For convenience, the clamp of the first gripping mechanism 23 (
The first clamp) 24 is indicated by 01, and the clamp (second clamp) 45 of the second gripping mechanism 44 is indicated by 02.

(a) In the initial state, the winding device is a toroidal core TC held by a jig J as shown in FIG. 6(a).
The core hole H1 of the toroidal core TC is placed approximately on the origin SP, and the first clamp CI (24) grips the free end of the wire W, one end of which is fixed to the jig J, at a predetermined distance apart from the toroidal core TC. It is located at the bottom. In addition, the second clamp C2 (45) is arranged rearward at a position higher than the toroidal core TC. Approaching along the axis is called forward movement, and moving away from the toroidal core TC along the X axis is called retreating.Furthermore, when the second clamp C2 is in a retracted state, the clamp C2 in that state is shown in FIG. (indicated by a broken line).

In this state, irradiation light La is projected from a lamp that irradiates the toroidal core TC, and the position of the core hole H of the toroidal core TC in the X-axis direction and the Y-axis direction is detected by the video camera CA. Note that a method for detecting the position of the core hole H using the video camera CA will be explained later.

(b) The jig J is retreated by the core drive mechanism 6 (origin SP
It moves away from along the Y11 direction. ) to be forced.

Next, the first clamp C1 is raised by a certain amount and the free end of the wire W held by it is placed at the same height as the point Sr.Then, the free end of the wire W is irradiated. Irradiation light Lb is emitted from the lamp, and the position of the free end of the wire W in the X-axis direction and the Y-axis direction is detected by the video camera CA. The reason why the position is detected by raising the video camera CA is that the focus of the video camera CA is set on the origin SP.The position detection results are processed in the control device described later.

(c) The first clamp C1 is loaded and lowered, and the wire rod W is loaded and lowered accordingly. Next, the jig J moves forward, and alignment is performed so that the center of the core hole H of the toroidal core TC is directly above the free end of the wire W. This positioning is performed by calculating the results of the two position detections of the core hole H and the free end of the wire W by the video camera CA in the steps (a) and (b) above in a control circuit to be described later. This is done by giving a control signal to the drive mechanism 6 to move the core holding part 7 in the X-axis direction and the Y-axis direction. Note that control by this control circuit will be explained in detail later.

Next, the second clamp C2 (45) in the open state moves forward and is located above the toroidal core TC. Therefore,
If the position of the free end of the wire W measured in the process of (b) deviates from the origin SP, the toroidal core TC positioned in the process of (C) also returns to the origin according to the large deviation. It will be located at a location offset from SP.

(d) The first clamp C1 is raised slightly, and as a result, the free end of the wire W held by the first clamp C1 passes through the core hole H of the toroidal core TC. Note that the amount of rise of the first clamp CI at this time is preset to a value such that the free end of the wire W becomes slightly higher than the origin SP. When the free end of the wire W is passed through the core hole H of the toroidal core TC, the core drive mechanism 6 controls the position of the toroidal core TC so that the core hole H of the toroidal core TC returns to the position of the origin SP. After the core hole H of the toroidal core TC has returned above the origin SP in this way, the first clamp C1 is raised again, and the free end of the wire W is moved to the second clamp in the open state.
(passed between the fixed piece 45 and the movable piece 47), and then the second clamp C2 is immediately closed. Therefore, the free end portion of the wire W is held in the state H by the second clamp C2. Note that the wire W is guided by the guide groove 51 of the guide body 50 when passing through the second clamp C2.

(e) The first clamp C1 is opened, and then retreats an appropriate amount (moves away from the toroidal core TC along the Y-axis direction) and advances an appropriate amount (moves away from the toroidal core TC along the Y-axis direction). (movement in the approaching direction) and enter between the toroidal core TC and the second clamp C2.

Then, the wire W passed through the core hole H and held by the second clamp C2 passes through the open first clamp C1 (passes between the fixed piece 25 and the movable piece 26), Thereafter, the first clamp C1 performs an operation to grip the wire. As a result, the wire W is connected to the toroidal core TC and the second
The first clamp C1 in the part between the clamp C1 of
It will be in a state where it is grasped by.

(f) The second clamp C2 is opened and then retracted. After that, the first clamp C1 rises and the wire W
Tension is added to. When the tension reaches a certain value, the tension detection switch 32 is turned on, and the -'tl of the first clamp CI is stopped.

(g) the second clamp C2 in the open state yE moves forward;
The wire W passes through the guide groove 51 of the second clamp C2 in the open state and between the fixed piece 46 and the movable piece 47. Then, the core drive mechanism 6 causes the loidal core TC to advance slightly.

(h) The toroidal coil T is driven by the hend rotor 8 driven by the pulse smoke 9 for loaf rotation of the core drive mechanism 6.
C is rotated 360°. As a result, the wire W is wound one turn. Figure 6 (h) i: i: The l-Roytal core TC is rotated 2700 times. (i) When the l-Roytal core TC is rotated 3606 times, the second clamp C2 retreats, and at the same time The first clamp C1 moves to the lower knob of the toroidal core TC.

Specifically, the first clamp C1 retreats, descends, and then moves forward to move downwardly toward the toroidal core TC.
To position. This brings the winding device into the initial state shown in FIG. 6(a).

Thereafter, the process is repeated the same number of times as the number of turns of the toroidal coil to obtain the operations shown in FIGS. 6(a) to 6(i). Then, a toroidal coil with an arbitrary number of turns can be obtained.

In this operation example, the core holding portion 7 of the core drive mechanism 6 does not move in the Z-axis direction.

Operation Example 2 FIGS. 7(a) to 7(g) show another example of the operation of the winding device in the order of operation. The winding device used here is basically the same as the winding device shown in FIGS. 1 to 5, but there are some differences. First of all, in a km and Ft shown in Figs. 1 to 5,
The lamp that is irradiated when detecting the position of the core hole H of the toroidal core TC is positioned diagonally below the toroidal core TC, and the lamp that is irradiated when the position of the free end of the wire rod W is detected. The lamp was positioned diagonally above the toroidal core TC. However, the winding device used here is a toroidal core TC as shown in Figure 8.
The lamp LA to be irradiated to detect the core hole H of)
The three lamps LBI to LB3 are arranged directly below the toroidal core TC, and three lamps LBI to LB3 are arranged diagonally on two sides of the toroidal core TC so as to irradiate the free end surface of the wire from different directions. It becomes.

The reason why the end face of the wire W is irradiated from different directions by the plurality of lamps LBI to LB3 is as follows. That is, in order to detect the position of the free end of the wire W, the amount of light reflected from the end face of the wire W and incident on the video camera CA must be sufficient. If there is only one, the amount of reflected light from the end face of the wire W that enters the video camera CA may or may not be sufficient depending on the shape and orientation of the cut surface of the wire W, and the position can be detected reliably. things become difficult. Therefore,
It has been necessary to cut the wire W using a special cutting method that makes the shape and direction of the cut surface constant, for example, a cutting method that cuts the wire W using a reducing flame. However, as there is a growing need to automate all of the operations to obtain toroidal coils as much as possible, the limitation of cutting methods is a factor that restricts automation, but it is not a factor that promotes automation. I don't like it because it can't happen. Therefore, the free end surface of the wire W is irradiated from different directions using multiple lamps so that a sufficient amount of light reflected by the cut surface is incident on the video camera regardless of the shape and orientation of the cut surface. It is. In this way, the method for cutting the wire W is not limited, and automation can be promoted.

In addition, the second clamp C2 is shown in FIG. 9 and 10-1 in FIG.
As shown in FIG. 10, which is a cross-sectional view taken along line 0, the guide body 50a is not provided with a groove, but has a guide hole 59 whose diameter increases downwardly.

(a) In the initial state, the winding device is a toroidal core TC held by a jig J as shown in FIG. 7(a).
The core hole H of is located approximately on the origin SP, and the first clamp C1 grips the toroidal core TC at a position a predetermined distance from the free end of the wire W whose one end is fixed to the jig J.
It is located an appropriate amount back from the bottom of the . At this time, the first clamp C1 is set at a height such that the height of the free end of the wire rod W held by it is approximately the same as the core hole Hty)3 of the toroidal core TC. At this time, the second
The clamp c2 is located at a position appropriately higher than the toroidal core TC and recessed by an appropriate amount.

In this state yE, irradiation light La is projected from the lamp LA below the toroidal core TC, and the video camera CA detects the XMI direction and Yt? of the core hole H of the toroidal core TC.
A position in the d+ direction is detected.

(b) The jig J is moved backward by the core drive mechanism 6, and at the same time or after that, the clamp C1 of the joint 1 moves forward, and the free end of the wire W is located approximately on the origin SP (note that the wire W is bent, etc.). (As shown by the two-dot chain line, some positional deviation from the origin SP may occur.) Then, the irradiation light Lb is projected from the three lamps LB1 to LB3 that illuminate the free end of the wire W, and the video camera CA The position of the free end of W in the X-axis direction and the Y-axis direction is detected.

(C) The first clamp C1 is appropriately lowered, the jig J is moved forward, and the toroidal core TC is positioned on the origin SP. At the same time, the second clamp c2 moves forward and is positioned above the toroidal core TC.

(d) The first clamp C1 gradually rises. and,
During the ascent, the jig J is moved in the X-axis direction and the Y-axis direction by the core drive mechanism 6, and the toroidal core T
The core hole H of C is positioned above the free end of the wire W. Since the positioning is performed before the free end of the rising wire W reaches the same height as the toroidal core TC, the wire W is passed through the core hole H of the toroidal core TC. Then, when the tip of the wire W passes through the core hole H, the troital core TC is moved so that the core hole H returns to the origin SP, and thereby the wire W is bent when the wire W is bent. correction will be made. While the straightening is being carried out, the wire rod W continues to rise, and soon after the straightening is completed, the free end of the wire rod W is moved to the second clamp C2.
, and is passed through the guide hole 59 of the second clamp C2. The clamp C2 of the rear node 2 becomes a gripping shape F; in which the wire rod W is gripped.

In addition, FIGS. 11(a) to (i) show the positions of the toroidal core TC1, the first clamp C1, and the second clamp C2 when inserting the largely curved free end of the wire W into the core hole H of the toroidal core TC. It shows the changes in the relationship in more detail,
FIG. 5A shows the positional relationship of the toroidal core TC at the end of positioning. After the first clamp C1 starts to rise, the i-roidal core TC is positioned so that its hole H is located directly above the free end of the wire W, and the
It becomes as shown in a). The free end of the wire W is the first
It is raised by the clamp C1 and passed through the core hole H as shown in FIG. 11(b). Then, the toroidal coil core hole H is moved back to the origin SP.

During this time, the wire rod W continues to be pushed up, albeit gradually, and eventually the free end of the wire rod W passes through the guide hole 59 of the second clamp C2 (the guide hole 5 pieces, and are passed between the movable piece 47a and the fixed piece 46a). After that, as shown in FIG. 7(d), the clamp C2 is closed, and the free end of the wire W is held in the second clamp C2.
It will be in a state where it is grasped by.

<e) Next, the first clamp C1 is opened and the fish becomes 5,
In this state, it retreats as shown by the two-dot chain line in FIG. 7(e). Next,! - The loidal core TC is lowered by a predetermined amount by the core drive mechanism 6.

When the descent is finished, the first clamp C1 in the open state moves forward and returns to its original position (shown by a solid line), and the wire rod W
is passed through the first clamp C1 which is in the open state. Thereafter, the first clamp C1 is closed, and the wire W is held by the first clamp CI. Next,
The second clamp C2 becomes open y6; and stays that way! 1-shi 1 with a spoon, then step back.

(f) The first clamp C1 moves upward > 1 at a certain high speed.
However, when a certain amount of tension is applied to the wire W, it rises at a low speed, and when the tension detection switch 23 is turned on, that is, when a predetermined tension is applied to the wire W, the rise is stopped.

Incidentally, when the first clamp C1 is raised, the time required for the troital core TC to be lowered and a predetermined tension to be applied to the wire W is shortened.

Next, the troital core TC is first rotated by 220 degrees by the core drive mechanism 6, and in this state hot air is blown against the 1·' loidal coil C. The reason why hot air is blown against the toroidal core TC as shown in the figure is to fuse the wires of the windings wound around the toroidal core TC. Therefore, in the case of fusing in this way, it is necessary to use a fusing A wire as the wire W.

(g) When the 4% wind blows, the toroidal coil is raised and returned to its original position (the position where the core hole H of the toroidal core TC is above the origin SP). At the same time, the first clamp C1 moves backward and descends. As a result, the winding device returns to its initial state as shown in FIG. 7(a).

Thereafter, the series of operations described above is repeated the same number of turns as the number of turns of the toroidal coil to obtain the desired toroidal coil.

In addition, Fig. 12 (a) is a plan view of the main part of the loidal coil (with fusion winding that fuses the wires of the winding), and Fig. 12 (b) is taken along line bb in Fig. 12 (a). FIG. Moreover, FIG. 13(a) is a plan view of the main part of a toroidal coil that does not use a fused wire as a wire material and therefore is not fused and wound, and FIG. 13(b) is a plan view of the main part of the toroidal coil.
is a sectional view taken along line bb in FIG. This first
As is clear from the comparison between Figures 2 (a) and (b) and Figures 13 (a) and (b), when fused winding is used, the windings do not loosen and are tightly wound. The thickness T of the winding portion can be made thinner, and the space width W of the core hole H can be increased. Since the space width W of the core hole H can be increased, winding can be easily performed.Next, the control device V that controls the winding device will be explained.No. 141Δ is the control device V. It is a block diagram showing the configuration. In the figure, CA is a video camera that detects the position of the core hole H of the toroidal core TC and the position of the free end of the wire W, and 60 is a video camera that detects the image signal from the video camera CA in advance. Comparison circuit that compares with a set standard and divides into two numbers, 61
62 is a memory for storing the 241ti image signal outputted from the comparison circuit 60, and the memory 61 decomposes one screen worth of image Gj'''r into 128x128 pixels and stores them. The circuit sends a synchronization signal to the memory 61 so that the memory 61 performs a sampling operation of dividing one screen worth of image quality t) into 128 x 128 pixels, further generates necessary control signals, and , and exchanges various necessary signals with the microcomputer 63.The microcomputer 63 forms the main part of the control device 1, and processes the binarized image signal recorded in the memory 61 to create a toroidal image signal. Various controls for the equal winding device that perform alignment by detecting the deviation between the position of the core hole H of the core TC and the position of the free end of the wire rod W, and controlling the position of the toroidal core TC according to the detection result. 6465 is a monitor TV, 64 is a video camera C
A monitor television that directly reproduces the signal shown in A, 6
5 is a monitor television that reproduces the binarized signal stored in the memory 61.

Here, a method for detecting the position of the core hole H of the toroidal core TC will be explained with reference to FIG. 15. toroidal core T
Assume that the image obtained by photographing C is as shown in FIG. First, as shown in the same figure (b), a straight line L is parallel to the X axis and crosses the core hole H so as to divide its area into two.
Find the Y coordinate of 1. At the same time, as shown in the same figure (C), Y! Find the X coordinate of a straight line t2 that is parallel to kII and crosses the core hole H so as to divide its area into two. Then, as shown in FIG. 3(d), the X and Y coordinates of the intersection point p of the two straight lines correspond to the position of the core hole H. In this way, the intersection p of the straight lines t1 and L2 that bisect the area of the core hole H is
Since the position is recognized as I7j' and aligned, even if the gap in the core hole H becomes narrower as the winding progresses and the shape changes, the core hole H will always be at the optimum position for inserting the wire W or close to it. Since the position +'i'T is recognized, the wire W can always be smoothly inserted into the core hole H.

As shown in FIG. 16, the position of the free end of the wire rod W is detected by the method of detecting the position of the core hole H, and by turning the free end surface of the wire W in the This is done by determining the X and Y coordinates of the intersection p of two straight lines t1 and t2 that intersect the Y-axis square, and recognizing the position of the intersection p as the position of the free end of the wire W.

Effects of the Invention As described above, the toroidal core winding device of the present invention includes a core driving means that holds the toroidal core and rotates the toroidal core about an axis perpendicular to the center direction of the core hole 111b. , holding the free end of the wire with one end fixed in a predetermined position and passing it through the core hole of the toroidal core;
Thereafter, a first gripping means regrips the free end of the wire passed through the core hole and pulls the wire so that a constant tension is applied to the wire; a second gripping means that grips the end portion until the gripping is performed again by the first gripping means and passes it to the first gripping means; and a core hole of the toroidal core and the first gripping means. The positional relationship between the core holding means and the first gripping means is adjusted according to the position detection result by the position detection means for detecting the position of the free end of the wire rod and the position 1δ detection means. and a means for adjusting 1ξ so that the free ends of the wings face the core hole of the winding device of the toroidal coil, and the first gripping means includes a gripping part for gripping the wire, and a gripping part for adjusting the gripping part in the pulling direction of the wire. It is characterized by being constituted by a holding part that holds the holding part in a parallel movement direction along the holding part, and an elastic means interposed between the gripping part and the holding part. Therefore, the wire held by the first gripping means is passed through the core hole of the toroidal core held by the core driving means, and the free end of the wire passed through the core hole and gripped by the second gripping means is passed through the core hole of the toroidal core held by the core driving means. The wire can be re-grasped by the first gripping means and pulled as necessary, and in this state the wire can be wound once by rotating the Roygel core once by the core driving means. Therefore, by repeating this series of operations several times, a toroidal coil with an arbitrary number of turns can be made 1-1.

The first gripping means, which applies a predetermined tension to the wire when winding the wire by rotating the toroid by the core driving means, has a gripping portion that grips the wire, and a gripping portion that is used to pull the wire. It is constituted by a holding part that holds the holding part so as to be movable in 41 lines along the direction, and an elastic means interposed between the gripping part and the holding part. Therefore, even if tension is applied to the wire by the first gripping means, the free end C"iR of the wire is only pulled in the extending direction of the wire, so there is no risk of bending.
The first gripping means, which is used when winding is completed and the next winding is to be carried out, allows the work of passing the wire through the toroidal core to be carried out smoothly and without any hindrance.

[Brief explanation of drawings]

The drawings show an embodiment of the toroidal core winding device according to the present invention. FIG. 1 is a plan view of the winding device, and FIG. The side view of FIG. 3 shows the first gripping means indicated by arrow B in FIG.
4 is an enlarged side view showing the gripping portion and holding portion of the first gripping means, and FIG. 5 is a side view of the second gripping means taken along the direction shown in FIG. 6(a) to (i) are diagrams showing examples of the winding device in order of operation, and FIGS. 7(a) to (g) are side views of the winding device as seen along the direction shown in FIG. Figures showing other operation examples in the order of operation, Figure 8 is a perspective view of main parts showing an example of arrangement of lamps of the winding device when operating as shown in Figure t57, Figures 9 (a) and (b) are 7th
The second type that can be used when performing the operation shown in 1Δ
2 shows a clamp of the gripping means, in which (a) is a perspective view;
(b) is a cross-sectional view taken along the 1O-1o line in Figure (a), and the force 1
1(]a) to (C) are diagrams showing in order of operation the operation of passing the wire through the core hole of the toroidal core among the operations shown in FIG. 7,
Figures 12(a) and (b) show the fusion between the wires of the winding. (a) shows the main part of the toroidal core.
b) is the same figure (a) (7) Cross-sectional view along the bb line, 1st
In Figure 3 (a,) and (b), the winding wires are not fused).
(a) is a plan view of the main part, (b) is a cross section taken along line b-b in (a) of the same figure, and Fig. 14 is a block diagram showing the circuit configuration of the control device.) '515 figure (a)
- (d) are image diagrams for explaining the method for detecting the position of the core hole of the toroidal core, and FIG. 16 is an image diagram for explaining the method for detecting the position of the free end of the wire. Koma - Best explanation 6... Core drive means, 23... First handle) step,
24...Gripping part, 29...Holding Fil(, 31...
Sachi spring, 44, ψ, second gripping means, 60-63
...Position control means, TC, pot, toroidal core,
H・Fight・Core hole, C' I...Gripping part of the first gripping means (first clamp), C2...Gripping part of the second gripping means (second clamp), CA ...Position detection method (video camera), W...Wire rod Hideaki Ogawa <, l:! .・;, ]) Fig. 3 ■■ Figure 11 (C7) Cb) (C) Figure 12 Figure 13 ((7) (cy) Cb) Cb) Figure 14 Figure 15 Figure 16 Procedural amendment, (method) 1 Display of case 1982 Patent Application No. 125224 (2) Name of the invention Toroidal coil winding device 3 Relation to the case of the person who did the jdi ilE Patent applicant address No. 6-7-35, Kitashinyo, Tokyo Parts Ward Name (2)
18) Sony Co., Ltd. 4, Agent Address: 3-1-10-401 Irifune, Chuo-ku, Tokyo Name: 'tt Physician ([05) Yu Komatsu, 1 non-territorial person 6, of the specification subject to amendment Column 7 for brief explanation of drawings, contents of amendment (1) Section 3 from the bottom of page 36 of the specification, “Figure 9” Kerr et al., page 37, line 1, “Cross-sectional view” is the second method that can be used when performing the operation shown in Figure 7.
10 is a sectional view taken along line IQ-10 in FIG. 9.

Claims (1)

[Claims] (1) A core driving means that holds a toroidal core and rotates the toroidal core around an axis perpendicular to the axial direction of the core hole, and a wire rod with one end fixed at a predetermined position. The first grip grips the end and passes it through the core hole of the toroidal core, and then grips the loose part of the wire passed through the core hole and pulls it so that a constant tension is applied to the wire. The free end of the wire passed through the core hole is held by the first gripping means and the first gripping means h' and 'If, until the gripper 1 is repositioned by the first gripping means. a second grip passed to the first gripping means; a position detection means for detecting the 4<7 position of the core hole of the toroidal core and the free end of the wire gripped by the first gripping means; The positional relationship between the core holding means and the first gripping means is adjusted according to the position detection result by the position detection means, and the free end of the wire is inserted into the core hole of the toroidal coil winding device.
the first gripping means includes a gripping part that grips the wire, a holding part that holds the gripping part so as to be movable in parallel along the pulling direction of the wire, and the gripping part and an elastic means interposed between the holding part and the toroidal coil.
ba equipment