JPH08279430A - Coil winder and coil forming method - Google Patents

Abstract

PURPOSE: To provide a coil winder and a coil forming method capable of obtaining remarkably productivity. CONSTITUTION: In a coil winder and a coil winding method for forming a coil so that a wire rod 27 supplied via a nozzle is wound on a winding shaft 29, under conditions that a top end part of the wire rod 27 is held on the winding shaft 29, before winding the wire rod 27 is started and after winding of the wire rod is finished, the nozzles are respectively moved in the longitudinal direction of the winding shaft 29 with respective to wire rod holding means. Thus, by integrating the winding of coils and finishing of the end part, the arrangement of the entire device is made simple, and also a uniform coil with good quality can be formed, so that it is possible to realize the coil winder and the coil forming method capable of remarkably enhancing the productivity.

Description

Detailed Description of the Invention

[0001]

[Table of Contents] The present invention will be described in the following order. Field of Industrial Application Conventional Technology Problems to be Solved by the Invention Means for Solving the Problems (FIGS. 1 to 19) Action (FIGS. 1 to 19) Example (1) Overall Configuration of Coil Supply Device (FIGS. 1 and FIG. 2) (2) Detailed configuration of the coil forming unit (FIGS. 1 to 10) (3) Detailed configuration of the coil transfer terminal processing unit (FIGS. 1 to 1)
4) (4) Detailed structure of the coil insertion robot part (Figs. 1 to 1)
8) (5) Operation of Embodiments (FIGS. 1 to 19) (6) Effects of Embodiments (FIGS. 1 to 19) (7) Other Embodiments (FIGS. 1 to 19)

[0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coil winding device and a coil forming method, and more particularly to a coil winding device and a coil forming method for manufacturing an air core coil by winding a wire on a winding shaft. It is suitable to be applied to.

[0003]

2. Description of the Related Art The demand for high-density mounting of electronic components has increased, and the applications and shapes of electronic components used have been diversified. Along with this, the coil shapes and terminal shapes required for mounting have been diversified, and the models have been frequently switched. Against this background,
In a conventional coil winding device, the tip of a wire formed in a wire shape is fixedly held on a shaft (hereinafter referred to as a winding shaft), and the tip of the wire and the winding shaft are integrally rotated. A coil is formed by winding a lever wire around a winding shaft, and then cutting the wire with a cutter while leaving the end portion.

[0004]

However, in this type of coil winding device, a coil cut with a cutter is removed from the winding shaft and then transferred to a predetermined terminal forming section to perform coil winding processing. Is designed to process the end portion of the coil in a separate process. Therefore, conventionally, there is a tendency that the winding of the coil and the processing of the terminal portion are integrated and automatically processed.
In practice, the method of integrating the winding of the coil and the processing of the terminal portion is very difficult. For this reason, conventionally, a method of treating the coil winding and the terminal portion as separate steps has been generally used.

However, according to this method, not only the problem that the number of steps in the winding process is increased, but also when the coil cut by the cutter is removed from the winding shaft and transferred, an error occurs in the end shape of the coil. However, the stabilization of the terminal shape cannot always be ensured, and as a result, the shape of the manufactured coil may become uneven. Therefore, there is a problem that production efficiency is deteriorated.

The present invention has been made in view of the above points, and an object thereof is to propose a coil winding apparatus and a coil forming method capable of dramatically improving the production efficiency.

[0007]

In order to solve such a problem, in the present invention, when the winding shaft is rotated, the nozzle is moved in the longitudinal direction of the winding shaft with respect to the wire holding means so as to wind the wire around the winding shaft. With the nozzle moving means for controlling the pitch, and holding the tip of the wire on the winding shaft, before starting the winding of the wire and after finishing the winding of the wire, move the nozzle to the wire holding means respectively. To move in the longitudinal direction of the winding shaft.

Further, in the present invention, the nozzle is moved in the longitudinal direction of the winding shaft with respect to the wire holding device before the winding of the wire is started with the tip of the wire being held on the winding shaft. Then, after starting the winding of the wire rod, when the winding shaft rotates,
The winding pitch of the wire rod with respect to the winding shaft is controlled by moving the nozzle in the longitudinal direction of the winding shaft with respect to the wire rod holding means. Then, after the winding of the wire rod is completed, the nozzle is moved in the longitudinal direction of the winding shaft with respect to the wire rod holding means.

[0009]

When the winding shaft is rotated, the nozzle moving means is provided for controlling the winding pitch of the wire rod with respect to the winding shaft by moving the nozzle in the longitudinal direction of the winding shaft with respect to the wire rod holding means, and the tip end of the wire rod is wound. While the wire rod is held above, the nozzle is moved in the longitudinal direction of the winding shaft with respect to the wire rod holding means before starting the wire rod winding and after finishing the wire rod winding. It is possible to form the winding start portion and the winding end portion so as to open outward.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings.

(1) Overall Structure of Coil Supply Device In FIG. 1, reference numeral 1 denotes a coil supply device to which the present invention is applied as a whole, and a substrate transfer section 4 for transferring a substrate 3 and a coreless coil on a pedestal 2. A coil forming part 5, a coil forming robot 5 for inserting the air-core coil formed by the coil forming part 5 into a predetermined position on the substrate 3 conveyed by the substrate conveying part 4, and a coil forming part. A coil transfer terminal processing unit 7 that conveys the air-core coil is provided between the unit 5 and the coil insertion robot unit 6.

The substrate transfer section 4 is arranged in a groove 2A provided on the upper surface of the pedestal 2, and the substrate 3 supplied from the preceding production line is placed on the substrate mounting table 10 and is placed in the groove 2A. Carry along. In this case, the substrate transfer unit 4 transfers each substrate mounting table 10 to be transferred to a predetermined position on the gantry 2 which is set in advance (hereinafter, this will be referred to as a coil insertion position).
At this time, the substrate 3 placed on the substrate placing table 10 is positioned and held at the coil inserting position for a predetermined time required for inserting the air-core coil. .

In the coil forming section 5, the rollers 20,
Tensioner 21, insulating film peeling unit 22, wire rod supply unit 23,
The wire rod cutting section 24 and the winding section 25 are provided, and the bobbin (not shown) loaded inside the gantry 2 moves from the roller 20 to the roller 20.
Then, with respect to the wire 27 supplied to the insulating film peeling portion 22 through the tensioner 21 in order, the insulating film peeling portion 22 peels off the insulating film of the portion corresponding to the terminal portion of the air-core coil.

The wire rod 27 is sent out to the winding portion 25 by the rear wire rod supply portion 23, and the tip end portion is clamped by a chuck (not shown) provided at the tip end of the spindle 28 so that the spindle 28 is driven to rotate. Thus, it is wound around the winding shaft 29 at the tip of the spindle 28.

At this time, the wire rod supply unit 23 is connected to the spindle 2
The winding pitch of the wire rod 27 is controlled by moving in one direction (in this embodiment, the front direction) parallel to the winding shaft 29 as a whole in synchronization with the rotation of 8. In addition, the wire rod supply unit 23 moves slightly forward as a whole after the chuck of the winding wire unit 25 holds the tip of the wire rod 27 and after the winding of the wire rod 27 by the winding wire unit 25 is completed. The winding start portion of the wire rod 27 (the winding start portion of the air-core coil) and the winding end portion of the wire rod 27 (the winding end portion of the air-core coil) are each opened outward.

Further, in the coil forming unit 5, the wire rod supplying unit 2
When the forming of the winding end portion of the wire rod 27 by 3 is completed, the wire rod cutting unit 24 fixed to the wire rod supply unit 23 is driven to cut the wire rod 27 at a predetermined position. This separates the wire wound around the winding shaft 29 from the other wire portions, thus forming an air-core coil.

On the other hand, in the coil transfer terminal processing section 7,
After the coil transfer part 31 provided with the delivery shaft 30 having the same outer diameter as the winding shaft 29 of the winding part 25 and the coil terminal forming part 32, and after the step of forming the air-core coil by the coil forming part 5 is completed. The coil transfer part 31 holds the delivery shaft 30 coaxially with the winding shaft 29 of the coil forming part 5, and the coil terminal forming part 32.
At the same time, it moves backward from the origin position and transfers the air-core coil from the winding shaft 29 to the delivery shaft 30.

At this time, the coil end forming portion 32 sandwiches the respective end portions of the air core coil, positions the air core coil with respect to the delivery shaft 30, forms the end portions of the air core coil, and Conducting a continuity test between the terminal portions of the core coil. After that, when these processes are completed, the coil transfer section 31 moves forward together with the coil end forming section 32 and returns to the original position, and then the air core coil transferred to the delivery shaft 30 is transferred to the coil insertion robot section 6. Supply to.

In the coil insertion robot part 6, FIG.
As shown in (A) and (B), a coil insertion portion 41 provided with first and second holders 40A, 40B having a horizontal cross-section L-shaped and projecting downward, and the coil insertion portion 41 in front and back. 2A and 2B, the air-core coil 43 is composed of a robot part 42 that is movably supported in the left-right direction and is supplied from the coil transfer part 31 of the coil transfer terminal processing part 7. Like the first and second holders 40A, 40B
The air core coil 43 is gripped so as to be sandwiched from a direction inclined by a predetermined angle with respect to the axis K1 of the air core coil 43, and is conveyed to a predetermined position on the substrate 3 which is positioned and held at the coil insertion position by the substrate conveyance unit 4. After that, it is inserted into the substrate 3 by pushing it. In this way, the coil supply device 1 supplies the air-core coil 43 to the predetermined position in the predetermined state with respect to the substrates 3 sequentially supplied from the preceding production line.

(2) Detailed Structure of Coil Forming Part Here, in the case of this coil supplying device 1 in practice, the insulating film peeling part 22 of the coil forming part 5 has a first structure as shown in FIG.
And a cylindrical member 52 rotatably supported by the second bearings 50 and 51.

The cylindrical member 52 is connected to the output shaft of the motor 55 (FIG. 1) via the timing belt 54 (FIG. 1) via the timing belt 54 (FIG. 1), so that the rotation output of the motor 55 is obtained. It is designed so that they can be rotationally driven in synchronization. Further, a plurality of L-shaped cutters 56A and 56B are attached to the tip end of the cylindrical member 52 so as to be rotatable within a predetermined range about a substantially central portion in the longitudinal direction as an axis. Katsu 56
Weights 57A and 57B are attached to the rear end portions of A and 56B, respectively.

Thus, in the insulating film peeling portion 22, the motor 5
5 (FIG. 1) is driven to rotate the cylindrical member 52, so that the tips of the cutters 56A and 56B are inserted into the cylindrical member 52 by the centrifugal force of the corresponding weights 57A and 57B. It can be moved so as to come into contact with the wire rod 27, whereby each of these cutters 56A and 56B is moved.
Thus, the insulating film applied to the wire 27 can be peeled off.

On the other hand, as shown in FIG. 4, in the wire rod supply section 23, there is a rail 60 fixedly arranged on the pedestal 2 (FIG. 1) in parallel with the front-rear direction, and a base plate 61 is mounted on the rail 60. The actuator is arranged so that it can move freely along the rail 60 based on the propulsive force given from an actuator (not shown) (hereinafter referred to as an actuator for driving the base plate), and the base plate 61 has a rear end provided with a coil. The letter-shaped member 62 is fixed vertically.

A chuck 6 is provided inside the U-shaped member 62.
The actuator 3 can move along the guide shaft 64 in parallel with the movement path of the wire rod 27 on the basis of the propulsive force given by an actuator (not shown) (hereinafter, referred to as an actuator for checking movement), and an actuator not shown in the drawings. (Hereinafter, this is referred to as a chuck opening / closing actuator) It is attached so as to be able to open and close freely based on a driving force applied thereto. A flat plate-shaped nozzle support plate 65 is fixed to the right side surface of the U-shaped member 62 so as to project in the front direction, and a supply nozzle 66 is fixed to the tip of the nozzle support plate 65.

Thus, in this wire rod supply section 23, first, the actuator for opening and closing the chuck is driven so that the chuck 63 closes to hold the wire rod 27 in the chuck 63, and then the actuator for moving the chuck is driven to move the chuck 63 to the right. This wire 27 can be sent out to the winding part 25 via the supply nozzle 66 by moving in the direction (that is, the direction approaching the winding part 25), while the chuck 63 and the supply nozzle are driven by driving the base plate driving actuator. 66 can be integrally moved along the rail 60 in the front-back direction (that is, in the direction parallel to the winding shaft 29 of the winding portion 25 (FIG. 1)).

Therefore, in the wire rod supplying section 23, when the wire rod supplying section 23 is in operation, as shown in FIG.
From the initial state in which the wire 27 slightly protrudes from the tip of the supply nozzle 66 as in (A), first, the actuator for opening / closing the chuck and the actuator for moving the chuck are driven at predetermined timings, respectively, as shown in FIG. 5 (B). By moving the chuck 63 toward the winding shaft 29 of the winding portion 25, the wire rod 27 is fed to the winding portion 25 with a predetermined tension by a predetermined amount.

Then, when the chuck 70 of the winding portion 25 clamps the tip end of the wire 27, the actuator for driving the base plate is driven and the chuck 63 and the supply nozzle 66 are slightly integrated as shown in FIG. 5C. By moving the wire 27 forward, the winding start portion of the wire 27 is formed.

After that, when the spindle 28 of the winding portion 25 starts to rotate, the actuator for driving the base plate is driven to move the chuck 63 and the supply nozzle 66 integrally forward in synchronization with the rotation of the spindle 28. As a result, the wire rod 27 is wound around the winding shaft 29 by a predetermined winding pitch as shown in FIG.

Further, when the winding of the wire 27 around the winding shaft 29 is finished and the spindle 28 of the winding portion 25 stops rotating, the actuator for driving the base plate is driven again, as shown in FIG. 5 (E). Check 63 and supply nozzle 66
To move the wire rod 27 slightly forward.
Form the end of the winding.

In this way, the wire rod supply unit 23 is configured to supply the wire rod 27 to the winding portion 25, form the winding start portion and the winding end portion of the wire rod 27, and control the winding pitch of the wire rod 27. ing.

In the winding portion 25, FIGS. 6 to 7 (C)
As shown in FIG. 3, the spindle 28 has a cylindrical hole 28A formed coaxially with the spindle 28 at the tip thereof, and the winding shaft 2 is fitted into the hole 28A.
9 are arranged. In this case, in particular, as apparent from FIGS. 7B and 7C, the peripheral side surface of the winding shaft 29 is
Elliptical opening 2 formed on the peripheral side surface of the spindle 28
The protrusion 29A is provided so as to be exposed from 8B, and the compression coil spring 71 is arranged in the inner part of the hole 28B of the spindle 28 so as to bias the winding shaft 29 in the forward direction. 29 is movable in its axial direction.

Further, as is particularly apparent in FIG. 6, the first and second chuck members 7 which form a chuck 70 adjacent to the winding shaft 29 at the tip of the spindle 28.
0A and 70B are rotatably attached about shafts 72A and 72B, respectively, and these first and second catch members 70A and 70B are normally closed by the elastic force of the compression coil spring 72. It is designed to be able to retain its state.

Further, the first and second chuck members 7
The first and second rollers 73A and 73B are rotatably attached to the rear ends of 0A and 70B, respectively, and the first and second rollers 73A and 73B are installed inside the spindle 28. A chuck drive member 74 is provided so as to face each other and is provided with a notch having an isosceles trapezoidal shape at its tip end portion so as to be movable in the front-back direction. This moves the check driving member 74 in the forward direction so that the first and second
It is possible to open the chuck 70 by rolling the rollers 73A and 73B along the corresponding inclined surface of the tip end portion of the chuck driving member 74, and thereafter, by moving the chuck driving member 74 in the rearward direction. The chuck 70 can be closed.

Therefore, in the winding portion 25, when the wire rod 27 is supplied from the wire rod supply portion 23, first, the chuck drive member 74 is firstly supplied.
Moves in the forward direction to open the chuck 70, and when the wire 27 is subsequently fed between the first and second chuck members 70A and 70B, the chuck drive member 74 moves in the backward direction to move the chuck 70. The chuck 70 holds the tip of the wire 27 by the chuck 70. After that, as described above, the wire rod 27 is wound around the winding shaft 29 by rotating the spindle 28.

In the wire rod cutting portion 24, as is apparent from FIGS. 4 and 8, the wire rod feeding portion 23 is fixed to the front end portion of the base plate 61 so as to project toward the moving path of the wire rod 27. It has a base plate 80, and this base plate 80
A guide rail 81 is fixed in the vicinity of the tip of the guide plate in parallel with the longitudinal direction of the base plate 80 indicated by an arrow d, and a cutter attachment member 83 is arranged on the guide rail 81 via a slider 82.

The tip portion 83A of the cutter mounting member 83
First and second blade portions 84A, 84B, which are made of a sharp and wear-resistant material and which form the cutter 84, are rotatably attached by screws 85. These first and second blade portions 84A, 84B are The elastic force applied from the compression coil spring 86 can normally keep the open state.

Further, first and second rollers 87A and 8A are provided at the rear end portions of the first and second blade portions 84A and 84B, respectively.
7B is rotatably mounted, and an output shaft 89 of an actuator 88 is provided behind the first and second rollers 87A and 87B in parallel with the longitudinal direction of the cutter mounting member 83 and in the cutter mounting member 83. The cutter driving member 9 is arranged so that the tip portion thereof is supported by the projection portion 83B of the output shaft 89, and has a concave shape at the tip of the output shaft 89.
0 is attached.

Further, a ring 91 is fixed to the output shaft 89 between the actuator 88 and the projection 83B of the cutter mounting member 83, and the ring 91 and the cutter mounting plate 83.
The compression coil spring 92 is disposed so as to be fitted into the output shaft 89 between the projection portion 83B and the projection portion 83B.

As a result, in the wire rod cutting section 24, when the actuator 88 is driven to move the output shaft 89 forward,
The cutter mounting member 83 is the output shaft 8 of the actuator 88.
By moving diagonally upward along the guide rail 81 together with 9, the cutter 84 moves toward the wire 27,
After this, the cutter attachment member 83 comes into contact with a stopper (not shown) disposed at the tip of the base plate 80, and then only the output shaft 89 of the actuator 88 is further advanced and attached to the tip. FIG. 9 shows the cutter driving member 90.
As shown in (A), the wire rod 27 is cut by fitting it between the first and second rollers 87A and 87B and expanding the space between the first and second rollers 87A and 87B to close the cutter 84.

In the wire rod cutting section 24, when the actuator 88 is then driven to retract the output shaft 89, the cutter driving member 90 moves between the first and second rollers 87A and 87B as shown in FIG. 9B. After that, the cutter 84 is returned to the original open state, and then the cutter attachment member 83 is slanted backward along the guide rail 81 together with the output shaft 89 of the actuator 88.

Accordingly, in the wire rod cutting section 24, the winding section 2
When the winding process of the wire rod 27 by 5 is completed, first, the actuator 88 is driven to move the output shaft 89 forward to move the cutter 84 toward the wire rod 27 and cut the wire rod 27 by the cutter 84. After that, the actuator 88 is driven again to retract the output shaft 89, thereby closing the cutter 84 and returning to the original origin position as a whole.

In the case of this embodiment, the wire cutting portion 24 is tilted in the direction approaching the winding portion 23 (FIG. 1) as a whole (rightward direction shown by arrow b in FIG. 1), and the wire feeding portion 23 is provided.
It is attached to the base plate 61 (see FIG. 4). As a result, the wire rod cutting portion 24, as shown in FIG.
4, the wire rod 27 can be cut from the inclined direction, and each end portion 43 of the air-core coil 43 thus formed is cut.
The tip portions of A and 43B can be formed in a so-called bamboo spear shape whose projection shape is almost a point.

(3) Detailed Structure of Coil Transfer Terminal Processing Section On the other hand, in the coil transfer terminal processing section 7, as shown in FIGS. 11 and 12, a base fixedly mounted on the mount 2 (FIG. 1). A plate 100 is provided, and a guide rail 101 is fixed on the base plate 100 in parallel with the front-rear direction, and freely slides on the guide rail 101 on the basis of a driving force given from a cylinder 102 on the guide rail 101. The slider 103 is arranged so as to obtain, and the slide plate 104 is arranged on the slider 103.

A coil transfer portion 31 is fixed to the front end portion of the upper surface of the slide plate 104, and a coil end forming portion 32 is fixed to the rear end portion of the upper surface via a mounting fixing plate 105. Therefore, in this coil transfer terminal processing unit 7,
By driving the actuator 102, the coil transfer part 31 and the coil end forming part 32 are moved to the guide rail 1.
Along with 01, it can be integrally moved in the front-rear direction.

As is clear from FIGS. 11 to 13, the coil transfer portion 31 has a first L-shaped member 107 fixed on the slide plate 104 via a base 106. A cylinder 108 is fixed to the end of the horizontal portion 107A of the L-shaped member 107 of No. 1. A second L-shaped member 110 is fixed to the output shaft 109 of the cylinder 108, and the second L-shaped member 110 is a first L-shaped member based on the propulsive force applied from the cylinder 108. Member 10
As it is guided by 7, it can freely move in the upward direction indicated by the arrow c and in the downward direction opposite thereto.

A delivery shaft 30 is fixed to the upper part of the second L-shaped member 110 via a shaft moving portion 111 including a guide and an actuator and a shaft holding plate 112 in this order. The shaft moving unit 111 can freely move in the front-back direction. As a result, in the coil transfer section 31, the delivery shaft 30 can be moved in the vertical direction by driving the actuator 108, while the delivery shaft 30 can be freely moved in the front-rear direction by driving the axis moving section 111. It is done like this.

Therefore, in the coil forming / transferring section 7, when the step of forming the air-core coil 43 (FIG. 2) by the coil forming section 24 (FIG. 1) is completed, the actuator 102 is first driven to move the slide plate 104. The distal end portion of the delivery shaft 30 is moved in the backward direction so that the winding shaft 29 of the coil forming portion 23 is
The rear shaft moving portion 111 is driven to further move the delivery shaft 30 in the backward direction so that the winding shaft 29 is pushed into the spindle 28 by the delivery shaft 30. As a result, the air-core coil 43 fitted on the winding shaft 29 is transferred to the delivery shaft 30.

After this, when the molding and continuity inspection of the air core coil 43 (FIG. 2) by the coil terminal molding portion 32 to the terminal portions 43A and 43B are completed, the actuator 10 is completed.
2 is driven to move the base plate 104 in the forward direction to return to the original position as a whole.

On the other hand, in the coil end molding portion 32, as is clear from FIGS. 12 and 14 (A), a flat plate-shaped base 120 fixed to the mounting fixing plate 105 (FIG. 12) is provided. At the upper end of the base 120, the first cylinder 12
The first rail 122 based on the propulsive force given by
A first slide portion 123 is arranged so that it can freely move in the left-right direction along the. On the first slide portion 123, the first conductor mold block 1 made of a conductor is formed.
24 and a first insulating mold block 125 made of an insulating material such as a plastic insulating material are integrally fixed.

Further, on the upper end of the base 120, similarly to the first slide portion 123, the second slide portion 123 can be freely moved in the left-right direction based on the propulsive force given by the second actuator (not shown). A slide portion (not shown) is also provided, and a second insulating mold block 126 made of an insulator such as a plastic insulator is provided on the second slide portion.
And a second conductor die block 127 made of a conductor are integrally fixed so as to face the first conductor die block 124 or the first insulating die block 125, respectively.

In this case, the facing portions of the first conductor mold block 124 and the second insulating mold block 126 are formed in a predetermined shape corresponding to the predetermined end portion shape, and the second insulating mold block 124 is also formed. The respective facing portions of the mold block 125 and the second conductor mold block 127 are also formed in a predetermined shape corresponding to the predetermined terminal shape.

Thus, in this coil terminal molding portion 32,
The coil transfer unit 31 (FIGS. 11 to 13) is the air-core coil 43.
When the coil is transferred from the winding shaft 29 (FIG. 1) of the coil forming unit 24 (FIG. 1) to the delivery shaft 30 (FIGS. 11 to 13), the first and second actuators 121 are driven to move the first and second actuators 121. By moving the two slider portions 123 toward each other, the winding start end portion 43A of the air-core coil 43 is sandwiched between the first conductor die block 124 and the second insulating die block 126. , The first insulating mold block 125 and the second conductor mold block 127 sandwich the winding start end portion 43B of the air-core coil 43, thereby bringing the air-core coil 43 into a predetermined state. Positioning and holding, and each terminal portion 4 of this air-core coil 43
3A and 43B are press-formed into a predetermined shape corresponding to the shape of each mold block 124-127.

In addition, in this coil terminal molding portion 32, the first
And the second conductor mold blocks 124 and 127 are shown in FIG.
As shown in (B), it is electrically connected via the sensor unit 128, and the sensor unit 128 can inspect the continuity between the first and second conductor die blocks 124 and 127. . As a result, this coil terminal molding part 3
In FIG. 2, when the terminal blocks 43A and 43B of the air-core coil 43 are sandwiched by the mold blocks 124 to 127, the sensor section 128 is driven, whereby the terminal sections 43A of the air-core coil 43 are driven. , 43B is inspected.

In the case of this embodiment, as is clear from FIG. 14 (B) in particular, the winding end terminal portion 4 of the air-core coil 43.
First insulating mold block 125 and second holding 3B
The length L2 of the conductor die block 127 in the front-rear direction is equal to the length L2 of the first conductor die block 124 and the second insulation die block 12 that sandwich the winding start end portion 43A of the air-core coil 43.
6 is formed to be larger than the length L1 in the front-rear direction. As a result, the coil terminal molding portion 32 can cope with the air-core coils 43 having various shapes such as different lengths.

(4) Detailed Structure of Coil Inserting Robot Section In the robot section 42 of the coil inserting robot section 6 (FIG. 1), as is apparent from FIG.
The fixed portion 141 is fixed via 40, and the fixed portion 14
The first movable portion 142 is movably mounted on the first movable portion 142 in the front-rear direction, and the second movable portion 1 is mounted on the first movable portion 142.
43 is configured by being attached so as to be movable in the left-right direction.

In this case, the coil insertion portion 41 is attached to the surface of the second movable portion 143. As a result, the robot part 42 can move the first and / or second movable part 14 as necessary.
By driving 2, 143, the coil insertion portion 41 can be freely moved in the front, rear, left and right directions.

On the other hand, in the coil insertion portion 41, FIG.
As shown in, the guide rail 150 fixed to the surface of the second movable portion 143 of the robot portion 42 in parallel with the vertical direction.
And has a slider 151 in front of the guide rail 150.
A box-shaped movable block 152 is attached via. This movable block 152 is an actuator 153.
The output shaft 153A is connected to the output shaft 153A via an L-shaped portion 152A, whereby the output shaft 153A can freely move in the vertical direction along the guide rail 150 based on the propulsive force applied from the actuator 153.

The movable block 152 has a bearing 1
An outer cylinder 155 penetrates in parallel with the up-down direction so as to be rotatably supported by 54. The outer cylinder 155 includes a motor 156, a pulley 157, and a timing belt 15.
Based on the rotational force applied to the pulley 159 fixed to the upper end portion of the outer cylinder 155 through 8 sequentially, the spline shaft 160 penetrating the inside thereof can be rotationally driven integrally.

In this case, the spline shaft 160 is designed to be movable in the vertical direction independently of the outer cylinder 155 by driving the actuator 161, and the rod-shaped pusher 163 is provided inside the spline shaft 160. The pusher 163 is fitted and can move freely in the vertical direction independently of the spline shaft 160 by driving the actuator 162.

Further, a head portion 170 is arranged at the lower end of the spline shaft 160. Head section 170 is shown in FIG.
6 and FIG. 17, a mounting plate 172 fixed to the lower end of the spline shaft 160 via a base plate 171.
And the first and second holder mounting plates 173A, 173B are slidably mounted in one direction shown by an arrow x on the lower surface of the mounting plate 172.
The first and second holders 40A and 40B described above are fixed to the lower surfaces of the holder mounting plates 173A and 173B, respectively, so that the protrusions 40AX and 40BX thereof have a point-symmetrical positional relationship.

In this case, the first and second holder mounting plates 1
74A and 174B are the first and second compression coil springs 1
The actuators 175 are urged by the 75A and 175B in a direction in which they are close to each other, and can be freely moved in a direction in which they are separated from each other by driving the actuator 176.

Further, the protrusion 40AX of the first holder 40A
As shown in FIG. 18, a linear notch 40 is provided at the lower end of the
AXY is formed in parallel with the vertical direction, so that the transfer shaft 30 (FIG. 1) of the coil transfer part 31 (FIG. 1) can freely move in the vertical direction with its tip end fitted in the notch 40AXY. To be able to move to. Further, an opening is provided in each central portion of the base plate 172 and the mounting plate 173, so that the pusher 163 can freely move downward through the openings of the base plate 172 and the mounting plate 173. It is done like this.

Therefore, in the coil insertion robot part 7, after the coil transfer part 31 (FIG. 1) transfers the air-core coil 43 (FIG. 2) to the tip of the delivery shaft 30 (FIG. 1), it reaches the origin position. When retracted, first, the actuator 176 (FIG. 17) is driven to open the first and second holders 40A, 40B (FIGS. 16 and 17), while the actuators 153 and 161 (FIG. 15) are driven to move the heads. Part 170 (FIG. 1
5) into the notch 40AXY of the first holder 40A and the delivery shaft 3
The air core coil 43 held at the tip of the delivery shaft 30 is surrounded by the first and second holders 40A and 40B by lowering 0 so as to slightly fit.

Subsequently, the actuator 176 (FIG. 17) stops driving, so that the compression coil spring 175A,
The elastic force of 175B causes the first and second holders 40 to
A and 40B are closed, and thus the first and second holders 40A and 40B are grasped so as to sandwich the air-core coil 43 from the directions inclined by a predetermined angle with respect to the axis K1.

Thereafter, the actuator 108 (FIG. 12) of the coil transfer section 31 is driven to raise the delivery shaft 30 so that the air core coil 43 is moved to the end portions 43A and 43B of the first and second wheels 40A and 40B. Of the coil transfer part 31 after being raised so as not to project from the lower end of the
11 (FIG. 12) is driven to move the delivery shaft 30 in the forward direction so that the delivery shaft 30 is pulled out from the notch 40AXY of the first holder 40A.
The first and second movable portions 142 and 143 (FIG. 1) of FIG. 1 are driven at predetermined timings, so that the first and second holders of the coil insertion portion 143 (FIG. 1) (FIG. 1) are driven. ) Is moved to a predetermined position above the substrate (FIG. 1) positioned and held at the coil insertion position.

Then, actuators 153 and 161 (FIG. 15) of the coil insertion portion (FIG. 1) are driven to drive the first and second actuators.
After lowering the holders 40A, 40B (Fig. 1) of the actuator, the actuator 162 (Fig. 15) is driven to hold the air-core coil 43 (Fig. 2) held by the first and second holders 40A, 40B (Fig. 2). ) Is pushed downward by the pusher 163 (FIG. 16), the air-core coil 43 is inserted into the substrate 3 (FIG. 1) in a predetermined state. In this way, the coil insertion robot portion 6 inserts the air-core coil 43 supplied from the coil transfer terminal processing portion 7 onto the substrate 3.

(5) Operation of the Embodiment With the above-mentioned configuration, the coil supply device 1 of FIG.
It operates in accordance with the winding and insertion processing procedure RT1 shown in FIG.
That is, in the coil supply device 1, after the operation is started (step SP1), first, the insulating film peeling portion 22 of the coil forming portion 5 shown in FIG. 1 is driven to move the wire rod 27 to the end portion 43A of the air-core coil 43 (FIG. 2). , 43B (FIG. 2) is peeled off, and the wire rod supply unit 23 is driven to move the wire rod 27 by a predetermined amount by a predetermined tension.
To send to (step SP2).

Then, by driving the winding portion 25, the tip end of the wire rod 27 is clamped by the chuck 70 (FIG. 6) (step SP3), and then the wire rod supply portion 23 as a whole moves slightly forward. Winding part 25 is driven by the winding part 25 to rotate the spindle 28, and the wire rod supply part 23 moves forward as a whole to wind the wire rod 27. The winding shaft 29 of the wire portion 25 is sequentially wound by a predetermined winding pitch (step SP5).

When the winding of the wire rod 27 around the winding shaft 29 is completed, the wire rod supply unit 23 is driven to slightly move in the forward direction to form the winding end portion of the wire rod 27 (step SP6). Then, the wire rod cutting unit 24 is driven to cut the wire rod 27 to form the air-core coil 43 (FIG. 2) (step SP7). Then, the actuator 102 of the coil transfer terminal processing unit 7
(FIG. 11) is driven to integrally move the coil end forming part 32 and the coil transfer part 31 by a predetermined amount in the rearward direction (step SP8).

Next, the coil transfer section 31 is driven to move the delivery shaft 30 further rearward so that the air-core coil 43 (FIG. 2) fitted into the winding shaft 29 of the coil forming section 5 is delivered. At the same time, the coil end forming part 32 is driven to move the respective end parts 43A and 43B (FIG. 2) of the air core coil 43 (FIG. 2) to the corresponding mold blocks 124 to 127 ( 14), these are press-molded into predetermined shapes, respectively, and the sensor portion 128 (FIG. 14B) of the coil terminal molding portion 32 is driven to drive the terminal portion 43A of the air-core coil 42 (FIG. 2). , 43B
(FIG. 2) The continuity is checked (step SP9).

Subsequently, the actuator 102 (FIG. 11) of the coil transfer terminal processing unit 7 is driven to drive the coil terminal forming unit 3.
2 and the coil transfer unit 31 are integrally moved in the front direction of the gantry 2 and returned to the origin position (step SP10). Next, the coil insertion part 41 of the coil insertion robot part 6 is driven,
By lowering the first and second holders 40A and 40B (step SP11) and closing them, the air-core coil 43 (FIG. 2) is gripped by the first and second holders 40A and 40B. (Step SP12).

Subsequently, the coil transfer section 31 of the coil transfer terminal processing section 7 is driven to raise the delivery shaft 30 along the notch 40AXY (FIG. 18) of the first holder 40A, and this air core The coil 43 (FIG. 2) is connected to each terminal portion 43A,
43B (FIG. 2) has first and second holders 40A,
It is pushed into the insides of the first and second holders 40A and 40B to the extent that it does not project downward from the lower end of 40B (step S
P13), and thereafter, the coil transfer section 31 is driven to move the delivery shaft 30 in the forward direction, whereby the delivery shaft 30 is moved.
After pulling out from the notch 40AXY (FIG. 18) of the first holder 40A and passing the air-core coil 43 (FIG. 2) to the first and second holders 40A and 40B (step SP14).
The coil transfer section 31 is driven to lower the delivery shaft 30 to return the delivery shaft 30 to the original position (step SP15).

Thereafter, the coil insertion portion 41 of the coil insertion robot portion 6 is driven to drive the first and second holders 40A, 40.
When B is raised (step SP16), the robot part 4
2 drives to move the first and second holders 40A and 40B to a predetermined position above the substrate 3 positioned and held at the coil insertion position (step SP17). Further, at this time, the coil insertion portion 41 is driven to rotate the first and second holders 40A and 40B by a predetermined amount, thereby positioning the air core coil 43 (FIG. 2) in a predetermined state.

Further, thereafter, the coil inserting portion 41 is driven to lower the first and second holders 40A and 40B (step SP18), and the first and second holders 40A and 40B.
The air core coil 43 (FIG. 2) held by the pusher 1
After being inserted into the substrate 3 by pushing down 63 (FIG. 15) (step SP19), the first and second holders 40A and 40B are raised (step SP20).

Then, the robot portion 42 of the coil insertion robot portion 6 is driven to drive the first and second holders 40A, 4A and 4B.
After moving 0B to the predetermined origin position (step S
P21), and the winding and insertion processing procedure RT1 is ended (step SP21). Furthermore, this coil supply device 1
After that, this winding and insertion processing procedure RT1 is sequentially repeated, and thus the air-core coil 43 (FIG. 2) is sequentially supplied to the substrate 3 conveyed by the substrate conveying section 3.

Here, as described above, this coil supply device 1
Then, before starting the winding of the wire rod 27 by the winding portion 25,
And after the winding of the wire 27 by the winding part 25 is completed,
The wire rod supply unit 23 is configured to move relative to the winding unit 25 in parallel with the axial direction of the winding shaft 29. Therefore, the wire rod 27
It is possible to form the winding start portion and the winding end portion of each of them in a state of being opened outward.

(6) Effects of the Embodiments According to the above configuration, the wire rod is supplied before the winding of the wire rod 27 by the winding portion 25 is started and after the winding of the wire rod 27 by the winding portion 25 is completed. By moving the portion 23 with respect to the winding portion 25 in parallel with the axial direction of the winding shaft 29 and forming the winding start portion and the winding end portion of the wire rod 27 to the outside respectively, the air core is formed. Coil 4
The winding of No. 3 and the processing of the terminal portion can be integrated to simplify the structure of the entire apparatus, and at the same time, the air core coil 43 of good quality and uniform can be formed. Thus, it is possible to realize the coil supply device 1 capable of dramatically improving the production efficiency.

(7) Other Embodiments In the above embodiment, the present invention is applied to the air-core coil 43.
Although the case where the coil is formed and applied to the coil supply device 1 for supplying to the substrate 3 is described, the present invention is not limited to this, and is suitable for application to the coil supply device that forms various other coils. It is a thing.

[0079]

As described above, according to the present invention, in the coil winding device and the coil forming method for forming a coil by winding the wire rod supplied through the nozzle around the winding shaft, the tip of the wire rod is While holding on the winding shaft, before starting the winding of the wire rod and after finishing the winding of the wire rod, by moving the nozzle in the longitudinal direction of the winding shaft with respect to the wire rod holding means, A coil winding device capable of simplifying the configuration of the entire device by unifying coil winding and terminal processing and forming a uniform coil of high quality, thus dramatically improving production efficiency. And the coil forming method can be realized.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing an overall configuration of a coil supply device to which the present invention is applied.

FIG. 2 is an end view and a bottom view showing a configuration of first and second holders.

FIG. 3 is a side view showing a structure of an insulating film peeling portion with a partial cross section.

FIG. 4 is a perspective view showing a configuration of a wire rod supply unit.

5A and 5B are a top view and a side view for explaining the operation of the wire rod supply unit.

FIG. 6 is a perspective view showing a configuration of a winding portion.

FIG. 7 is a perspective view showing a configuration of a winding portion.

FIG. 8 is a perspective view showing the configuration of a wire rod cutting unit.

FIG. 9 is a top view for explaining the operation of the wire rod supply unit.

FIG. 10 is a schematic side view for explaining the cutting of the wire rod by the wire rod cutting unit.

FIG. 11 is a top view showing a configuration of a coil transfer terminal processing unit.

FIG. 12 is a side view showing a configuration of a coil transfer terminal processing unit.

FIG. 13 is a front view showing a configuration of a coil transfer unit.

14A and 14B are a perspective view and a schematic diagram showing a configuration of a coil terminal molding portion.

FIG. 15 is a schematic perspective view showing a configuration of a coil insertion portion.

FIG. 16 is a side view showing the configuration of the head portion of the coil insertion portion.

FIG. 17 is a bottom view showing the structure of the head portion of the coil insertion portion.

FIG. 18 is a perspective view showing a configuration of first and second holders.

FIG. 19 is a flow chart showing a winding and inserting procedure.

[Explanation of symbols]

1 ... Coil supply device, 3 ... Substrate, 4 ... Substrate transport section, 5 ... Coil forming section, 6 ... Coil insertion robot section, 7 ... Coil transfer terminal processing section, 22 ... Insulation film peeling Part, 23 ... wire rod supply part, 24 ... wire rod cutting part, 25 ...
… Winding part, 27 …… Wire rod, 28… Spindle, 29…
... winding shaft, 30 ... delivery shaft, 31 ... coil transfer part, 32
...... Coil end forming part, 40A, 40B ...... Holder, 4
1 ... Coil insertion part, 42 ... Robot part, 62 ... U-shaped member, 63, 70 ... Chuck, 64 ... Guide shaft, 65 ... Nozzle support plate, 66 ... Supply nozzle.

Claims (2)

[Claims] 1. A wire rod holding means holds a tip of a wire rod supplied through a nozzle, and the wire rod holding means is rotated integrally with the winding shaft about a central axis of the winding shaft. In the coil winding device for forming a coil by winding the wire rod around the winding shaft, the nozzle is moved in the longitudinal direction of the winding shaft with respect to the wire rod holding means when the winding shaft rotates. A nozzle moving means for controlling a winding pitch of the wire rod with respect to the winding shaft is provided, and the tip of the wire rod is held on the winding shaft before starting the winding of the wire rod and the winding of the wire rod. A coil winding device, wherein each of the nozzles is moved in the longitudinal direction of the winding shaft with respect to the wire rod holding means after the completion. 2. A tip of a wire rod supplied through a nozzle is held by a predetermined wire rod holding means, and the wire rod holding means is rotated integrally with the winding shaft about a central axis of the winding shaft. In the coil forming method of forming a coil by winding the wire rod around the winding shaft according to the above, in the state where the tip end portion of the wire rod is held on the winding shaft, the nozzle is set before starting the winding of the wire rod. After the wire rod is moved in the longitudinal direction of the winding shaft to start winding of the wire rod, the nozzle is moved in the longitudinal direction of the winding shaft with respect to the wire rod holding member when the winding shaft is rotated. By controlling the winding pitch of the wire rod with respect to the winding shaft by moving the wire rod in the direction, and moving the nozzle in the longitudinal direction of the winding shaft with respect to the wire rod holding means after the winding of the wire rod is completed. Special Coil forming method according to.