WO2009054079A1

WO2009054079A1 - Coil winding device and coil winding method

Info

Publication number: WO2009054079A1
Application number: PCT/JP2007/071354
Authority: WO
Inventors: Takahiro Sato
Original assignee: Nittoku Engineering Co., Ltd.
Priority date: 2007-10-26
Filing date: 2007-10-26
Publication date: 2009-04-30
Also published as: JP4918141B2; CN101836273B; JPWO2009054079A1; CN101836273A

Abstract

A coil winding device (100) for winding a joined coil in which a plurality of coils are joined comprises a winding axis (2) which is rotated on the axis and which can move in an axis direction, a nozzle (4) which let out a line member (1) to the winding axis (2) and which can move in the axis direction of the winding axis (2), and a chuck (24)which defines the end of the coil at the time of the winding of the coil and which permits the entrance of the winding axis (2) after the winding of the coil. The coil wounded on the winding axis (2) is sequentially housed in the chuck (24). A plurality of coils are wound in series on the winding axis (2).

Description

Description Coil winding apparatus and coil wiring method Technical Field

The present invention relates to a coil winding device and a coil winding method. Background art

A focus coil and a tracking coil are known as coils used for driving a head in an apparatus for reproducing and recording an optical disk such as a compact disk. Also known is a linear motor coil that gives a linear motion directly to the driven object.

As a coil winding apparatus that manufactures these coils, an apparatus that manufactures a plurality of connected coils using one continuous wire is known.

Japanese Patent Laid-Open No. 9-2 7 4 3 5 discloses that a plurality of jigs for winding a wire rod are arranged in parallel on the tip of the spindle, and these winding jigs enter and exit the spindle tip respectively in the axial direction. A coil winding device is disclosed which supports it.

Further, Japanese Patent Laid-Open No. 2 0 0 7-1 9 4 4 60 describes a flyer that rotates around the spindle shaft as the spindle shaft rotates, and a position where a plurality of scissors jigs face the spindle shaft. And a coil winding device that sequentially wire wires with respect to a plurality of winding jigs.

Disclosure of the invention

In the coil winding apparatus disclosed in Japanese Patent Laid-Open No. 9 1 2 7 4 3 5, a plurality of saddle jigs are provided on one spindle, so that the saddle jigs are not aligned with the rotation center of the spindle. Arranged. For this reason, the jig is rotated to draw a circle around the spindle axis. As a result, the feeding speed of the wire fed from the nozzle during spindle rotation changes depending on the distance between the jig and the nozzle. In other words, as the distance between the jig and the nozzle increases, the feeding speed of the wire increases and the tension of the wire increases. Also, as the distance between the winding jig and the nozzle decreases, the wire feeding speed decreases and the wire tension decreases.

Therefore, since the tension applied to the wire varies during one rotation of the spindle, there is a limit to increasing the rotation speed of the spindle. In addition, it is difficult to obtain a desired coil shape because the wire rod is tightened on the jig when the tension is high and the wire rod is loosened on the jig when the tension is low.

In addition, the coil winding apparatus disclosed in Japanese Patent Laid-Open No. 2 0 07-1 9 4 4 60 is provided with a saddle jig corresponding to the number of connected coils, that is, the number of coils. It is necessary to provide a mechanism for adjusting the width of the coil for each hook jig. Therefore, the equipment becomes large and has a complicated structure.

The present invention has been made in view of the above problems, and an object thereof is to provide a coil winding device having a simple structure and a coil winding method using the same.

The present invention is a coil winding device for winding a connection coil in which a plurality of coils are connected, the shaft rotating around the shaft and movable in the axial direction, and feeding the wire to the winding shaft And a wire rod supply section that is movable in the axial direction of the shaft, and a chuck that defines the end of the coil when coiling and allows the rod to enter after coil winding. The wound coils are sequentially accommodated in the chacks and ridges, and a plurality of coils are wound in series with respect to the heel shaft.

According to the present invention, each coil is wound in series on one winding shaft, and the number of winding jigs corresponding to the number of connected coils is not required. --Become Brief description of drawings

FIG. 1 is a perspective view showing a coil winding device 100 according to a first embodiment of the present invention.

FIG. 2 is a sectional view showing the coil winding apparatus 100 according to the first embodiment of the present invention.

FIG. 3 is an enlarged perspective view of the vicinity of the chuck.

FIGS. 4 (A) to 4 (I) are diagrams showing a winding operation procedure by the coil winding device 100. FIG.

FIG. 5 is a diagram showing a state after the shoreline is finished.

Fig. 6 (A) to Fig. 6 (D) are diagrams showing the procedure for removing the connecting coil from the shaft.

FIG. 7 is an enlarged perspective view of the vicinity of the saddle shaft in the coil winding device 200 according to the first embodiment of the present invention.

8 (A) to 8 (F) are diagrams showing the procedure of the winding operation by the coil winding device 200. FIG.

FIGS. 9 (A) to 9 (F) are diagrams showing a winding operation procedure by the coil winding device 200. FIG.

FIG. 10 (A) to FIG. 10 (F) are diagrams showing the procedure of the winding operation by the coil winding device 200.

FIG. 11 (A) to FIG. 11 (D) are diagrams showing the procedure of the winding operation by the coil winding apparatus 200.

Fig. 12 is a cross-sectional view showing a state in which the wire is wound on the shaft. --Best mode for carrying out the invention

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

(First embodiment)

A coil winding apparatus 100 according to a first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a perspective view showing the coil winding device 100, FIG. 2 is a cross-sectional view showing the coil winding device 100, and FIG. 3 is an enlarged perspective view in the vicinity of the chuck.

The coil winding device 100 manufactures a connected coil in which a plurality of coils are connected using a single continuous wire 1, and the wire 1 fed out from a nozzle 4 as a wire supply unit Rotate around the axis and wind around the outer periphery of the winding shaft 2 that can move in the axial direction.

The shaft 2 passes through a cylindrical member 8 that is rotatably supported via a bearing 7 on a support 6 that is erected on a base 5. A key 2 a that fits into a key groove 8 a provided on the inner periphery of the cylindrical member 8 is formed on the outer periphery of the shaft 2. Therefore, the shaft 2 rotates integrally with the cylindrical member 8 and can slide relative to the cylindrical member 8 in the axial direction. As shown in FIG. 3, a notch 2b for hooking and holding the wire 1 is provided at the tip of the shaft 2 as shown in FIG.

Further, on the base 5 on the base end side of the shaft 2, a shaft moving mechanism 1 1 for moving the shaft 2 in the axial direction and a shaft rotating mechanism 1 2 for rotating the shaft 2 about the axis are arranged. Yes.

The winding shaft moving mechanism 1 1 is composed of a shaft moving motor 1 3, a pole screw 14 connected to the output shaft of the shaft moving motor 1 3 and extending parallel to the shaft 2, and a moving plate on which the pole screw 14 is screwed. 1 and 5.

A shaft 2 passes through the moving plate 15 via a bearing 16. In the bearing 16, the shaft 2 can rotate relative to the moving plate 15, while the axial movement is integrated. It is comprised so that.

As a result, when the shaft moving motor 13 is driven, the shaft 2 moves in the axial direction via the moving plate 15.

The shaft rotation mechanism 12 includes a winding shaft rotation motor 18, a first pulley 19 attached to the output shaft of the shaft rotation motor 18, and a first pulley 19 connected to the first pulley 19 via a belt 20. Two pulleys 2 and 1.

A spline 2 c is formed at the end of the shaft 2, and the second pulley 21 is splined to the shaft 2 via the spline 2 c.

As a result, the shaft 2 rotates in synchronism with the rotation of the winding shaft rotation motor 18, and moves axially with respect to the second pulley 21.

On the same axis as the collar shaft 2, a chuck shaft 23 that rotates about the axis and is movable in the axial direction is provided opposite to the collar shaft 2. A chuck 2 4 facing the flange shaft 2 is connected to the tip of the chuck shaft 2 3.

The chuck 24 is a cylindrical member, and the end surface 24 a is provided with an opening 24 b through which the outer peripheral surface of the shaft 2 slides. The inner diameter of the body 24 c is compared with the outer diameter of the shaft 2. And it ’s big.

In a state where the shaft 2 passes through the opening 2 4 b and is inserted into the chuck 24 4, the end surface 2 4 a functions as a flange that defines the end of the coil. Further, the end face 8b of the cylindrical member 8 also functions as a flange that defines the end of the coil. Thus, the wire 1 is wound on the shaft 2 in a state where the width of the rod is defined between the end surface 24 a of the chuck 24 and the end surface 8 b of the cylindrical member 8. The chuck 24 and the circular rod member 8 are the flange width regulating members.

The chuck 24 is composed of semi-cylindrical split chucks 2 4 d and 2 4 e which are divided into two in the axial direction. The split chucks 2 4 d and 2 4 e are shafts by an opening mechanism 27 which will be described later. The structure can be opened in a direction perpendicular to the direction. --When the chuck 2 4 is open, the area of the opening 2 4 b of the chuck 2 4 is large. Therefore, even when the coil is wound on the winding shaft 2, the shaft 2 is open 2 4 b It becomes possible to enter into the chuck 2 4.

Thus, the chuck 2 4 defines the end of the coil in a closed state when winding to the shaft 2, and becomes open after the coil winding to the shaft 2, allowing the shaft 2 to enter the chuck. To do. By performing the closing and opening operation of the chuck 24 and the movement operation of the winding shaft 2 in the axial direction, the winding of the plurality of coils to the winding shaft 2 is performed.

In addition, as shown in FIG. 3, on the outer periphery of the end portion of the split chuck 24 e, as a locking member for locking the connecting wire 26 (see FIG. 5) between the coils wound around the shaft 2 The locking pin 25 is provided.

With reference to FIGS. 2 and 3, the opening mechanism 2 7 that opens the chuck 24 will be described. A disc member 28 is connected to the tip of the chuck shaft 23. Disc member

A guide groove 28 a is formed on the end face of 28 in a direction perpendicular to the winding shaft 2. The flange portions 29a and 29b are formed at the opposite ends of the end surfaces 24a of the split chucks 24d and 24e, respectively. Plate members 30a and 30b, which are slidably fitted in the guide grooves 28a, are connected to the rear surfaces of the flange portions 29a and 29b by screws 31. The flanges 2 9 a and 2 9 b are springs

3 2 urges the split chucks 2 4 d and 2 4 e to close. In the hollow portion of the chuck shaft 23, an intermediate rod 35 that can move in the axial direction is threaded. A tapered wedge portion 3 4 is connected to the tip of the middle rod 35, and a taper portion 3 3 along the tapered shape of the wedge portion 3 4 is formed on each of the plate members 30a and 30b. Yes. When the intermediate rod 3 5 moves forward and the wedge portion 3 4 abuts against and presses against the tapered portion 3 3 of the plate member 30 0a, 30 b, the plate member 30 0a, 30b becomes a disc member 2 8 Move along the guide grooves 2 8 a in the direction away from each other. As a result, the divided chucks 2 4 d and 2 4 e move away from each other against the urging force of the spring 3 2, and the chuck 24 is released in a direction perpendicular to the shaft 2. The chuck 2 4 is closed by the urging force of the spring 3 2 when the intermediate rod 3 5 is retracted and the wedge portion 3 4 is separated from the plate members 30 a and 3 Ob. In this way, the chuck 2 4 is opened and closed by the advancement and retraction of the middle rod 3 5.

The middle rod 35 is moved forward and backward by a middle rod moving mechanism 37 shown in FIG. The center rod moving mechanism 3 7 includes a center rod moving motor 3 8, a ball screw 3 9 connected to the output shaft of the center rod moving motor 3 8 and extending parallel to the center rod 3 5, and a pole screw 3 9. And a moving plate 40 to which the middle rod 35 is fixed. Thus, when the middle rod moving motor 38 is driven, the middle rod 35 moves in the axial direction via the moving plate 40. The chuck shaft 2 3 is inserted into a column 4 4 that is rotatably supported through a bearing 4 3 in a support column 4 2 that is erected on a base 5. On the outer periphery of the chuck shaft 23, there is formed a key 23a that fits in a keyway 44a provided on the inner periphery of the cylinder 44. Therefore, the chuck shaft 23 rotates together with the cylinder 44 and can slide relative to the cylinder 44 in the axial direction.

The chuck shaft 23 is moved in the axial direction by a chuck shaft moving mechanism 45 shown in FIG. 1, and the chuck shaft 23 is rotated by a chuck shaft rotating mechanism 46. The chuck shaft moving mechanism 45 includes a chuck shaft moving motor 47, a pole screw 48 connected to the output shaft of the chuck shaft moving motor 47 and extending parallel to the chuck shaft 23, and a pole screw 48. And a moving plate 49 to be joined.

A chuck shaft 23 passes through the moving plate 49 through a bearing 50. The bearing 50 is configured such that the chuck shaft 23 can rotate relative to the moving plate 49 while the movement in the axial direction is integrated.

Thus, when the chuck shaft moving motor 47 is driven, the chuck shaft 23 moves in the axial direction via the moving plate 49. --The chuck shaft rotation mechanism 4 6 is connected to the chuck shaft rotation motor 5 2, the first boule 5 3 attached to the output shaft of the chuck shaft rotation motor 5 2, the first boule 5 3, and the belt 5 4. And a second pulley 5 5 connected thereto.

A spline 23b is formed at the end of the chuck shaft 23, and the second pulley 55 is splined to the chuck shaft 23 via the spline 23b.

As a result, the chuck shaft 23 rotates in synchronization with the rotation of the chuck shaft rotation motor 52, and moves axially with respect to the second pulley 55. As described above, the chuck shaft 23 rotates about the shaft and can move in the axial direction, and the chuck 24 rotates and moves in the axial direction through the chuck shaft 23.

The nozzle 4 is for feeding the wire 1 supplied from a wire supply source (not shown) to the shaft 2 and is held by the nozzle holding member 60 shown in FIG. It is configured to be movable. The wire 1 is guided to the winding shaft 2 through the through hole of the nozzle holding member 60 and the nozzle 4.

The nozzle holding member 60 is provided with a clamp cylinder 61, and by driving the clamp cylinder 61, a piston (not shown) presses and holds the wire 1 against the nozzle holding member 60.

The nozzle moving mechanism 62 that moves the nozzle 4 in the three orthogonal axes will be described. The nozzle moving mechanism 6 2 includes an X-axis moving mechanism 6 3 that moves the nozzle 4 in a horizontal direction perpendicular to the shaft 2, a Y-axis moving mechanism 6 4 that moves the nozzle 4 in the axial direction of the winding axis 2, and the nozzle 4 And a Z-axis moving mechanism 65 that moves in the vertical direction. In the following, “X-axis direction” refers to the horizontal direction perpendicular to 卷 axis 2, “Y-axis direction” refers to the axial direction of 卷 axis 2, and “Ζ axis direction” refers to the vertical direction. And

The X-axis moving mechanism 6 3 is disposed on the first support base 6 7 and is connected to the output shaft of the X-axis moving motor 6 8 and the X-axis moving motor 6 8 and extends in the X-axis direction 6 9 When, --A ball screw 69 is screwed and a moving plate 70 fixed to the nozzle holding member 60 and a guide rail 71 extending in the X-axis direction and guiding the nozzle holding member 60 are provided.

Accordingly, when the X-axis moving motor 68 is driven, the nozzle holding member 60 that holds the nozzle 4 moves along the guide rail 71 in the X-axis direction.

The Y-axis moving mechanism 6 4 is arranged on the second support base 7 2 and moves the first support base 6 7 in the Y-axis direction. The Y-axis movement motor 7 3 and the Y-axis movement motor 7 3 The ball screw 7 4 connected to the output shaft and extending in the Y-axis direction, the pole screw 7 4 is screwed, and the moving member 7 5 fixed to the first support base 6 7 is extended in the Y-axis direction. And a pair of guide rails 7 6 for guiding the first support base 6 7.

Thus, when the Y-axis moving motor 73 is driven, the first support base 67 moves along the guide γ-roll 76 in the Y-axis direction, and the nozzle 4 also moves in the Y-axis direction.

The Z-axis moving mechanism 65 is arranged on the base 5 and moves the second support base 72 in the Z-axis direction. The Z-axis moving motor 78 and the output of the Z-axis moving motor 78 A pole screw 7 9 connected to the shaft and extending in the Z-axis direction, and a moving member 80 fixed to the second support base 7 2 when the pole screw 7 9 is screwed together; Two support bases 7 2 and a slide shaft 8 1 slidably penetrating the support base 7 2 are provided.

As a result, when the Z-axis moving motor 78 is driven, the second support base 72 moves along the sliding shaft 81 in the Z-axis direction, and the nozzle 4 also moves in the Z-axis direction.

As described above, the nozzle 4 can be moved in the three orthogonal directions by the nozzle moving mechanism 62.

The coil winding device 100 includes a hot air device 83 that blows hot air on the coil during winding and welds the coil. The hot air device 83 is disposed on the opposite side of the winding shaft 2 from the nozzle moving mechanism 62.

In addition, the coil winding device 1 0 0 cuts the wire 1 after finishing the winding to the shaft 2. --Equipped with a cutter 8 4 for. The cutter 84 can be moved in the vertical direction by the operation of the cylinder 85.

Next, the operation of the coil winding device 100 will be described with reference to FIG. 4 and FIG. FIG. 4 is a diagram showing a procedure of the winding operation by the coil winding device 100, and FIG. 5 is a diagram showing a state after the winding is completed. The operation of the coil winding device 100 is controlled by a controller (not shown) mounted on the coil winding device 100.

First, as shown in Fig. 4 (A), while driving the clamp cylinder 61 and holding the wire 1, the wire 1 fed from the tip of the nozzle 4 is inserted into the notch 2b at the tip of the shaft 2. Lock.

Release the holding of the wire 1 by the clamp cylinder 6 1, and wind the wire 1 around the winding shaft 2 by rotating the shaft 2 about one turn as shown in FIG. 4 (B).

As shown in Fig. 4 (C), the chuck 2 4 is moved forward with the intermediate rod 3 5 moved forward and the chuck 2 4 opened.

Next, as shown in FIG. 4 (D), the intermediate rod 35 is retracted to close the chuck. As a result, a flange body portion 8 7 is formed on the flange shaft 2 with the end surface 2 4 a of the chuck 24 and the end surface 8 b of the cylindrical member 8 as the flange portions. The end surface 2 4 a and the end surface 8 b卷 The width of the coil to be wired is specified. That is, the distance between the end face 24 a and the end face 8 b is the coil width.

Next, as shown in FIG. 4 (E), by moving the nozzle 4, the wire 1 is hung around the locking pin 25, and the wire 1 is placed near the end face 2 4 a of the chuck 2 4. To guide you.

In this state, as shown in FIGS. 4 (F) and (G), the chuck 2 4 and the winding shaft 2 are rotated synchronously, and the nozzle 4 is moved between the end surface 2 4 a and the end surface 8 b with the shaft 2. By reciprocating in parallel, wire 1 is wound in multiple layers in the same part of Satsuki. In this way, one coil 8 8 a constituting the coupling coil is formed on the shaft 2. --

As shown in FIG. 4 (G), hot air is blown onto the wire 1 that has been wound on the winding shaft 2 during the winding of the wire 1. As a result, the self-welding layer of the wire 1 is melted and the coil 88a is welded.

The chuck shaft 23 was rotated when the wire rod 1 was wound on the rod body portion 87. However, the rod shaft 2 was rotated while the wire rod 1 was guided to the outer periphery of the rod body portion 87 at the beginning of rod winding. By doing so, it is possible to perform the winding without rotating the chuck shaft 23.

After the winding of the coil 8 8a is completed, the chuck 24 and the shaft 2 are moved by a predetermined distance in the direction away from the cylindrical member 8, as shown in FIG. 4 (H). This moving distance is the space between the coils and the winding width of the next coil.

Next, as shown in FIG. 4 (I), the chuck 24 is opened and moved to the shaft 2 side, and the chuck 24 is closed again. As a result, the coil 8 8 a is accommodated in the chuck 24, and the winding shaft 2 is formed with the rod body portion 8 7 of the coil to be wound next (the same state as FIG. 4D). .

As shown in Fig. 4 (H) and (I), instead of moving the chuck 2 4 backward and forward, after the winding of the coil 8 8 a is completed, the chuck 2 4 is opened on the spot, The chuck 24 may be closed after the saddle shaft 2 has moved a predetermined distance to accommodate the coil 88a.

Next, as in the case of FIG. 4 (E), the wire 1 is hung around the locking pin 25, and the wire 1 is moved to the starting position of the next wire to be wound. Thus, when the next coil is wound by winding the connecting wire 26 between the coils 26 around the locking pin 25, the tension of the wire 1 does not easily reach the coil 8 8a. 8 It is possible to prevent the end of a from breaking.

The subsequent steps are the same as those shown in Fig. 4 (F) to (I). --Repeat as many times as desired for the number of connecting coils, and wire multiple coils in series with the shaft 2 as shown in Fig. 5. FIG. 5 shows a connection coil of 5 stations (8 8 a to 8 8 e).

When the winding is completed, as shown in Fig. 5, the chuck 2 4 is opened and retracted, the clamp cylinder 6 1 is driven to hold the wire 1 and the coil 8 4

8 Cut wire 1 between e and nozzle 4.

As described above, the winding method of the connecting coil by the coil winding device 100 is the method of winding the coil 2 after winding the coil on the rod body portion 8 7 between the chuck 24 and the cylindrical member 8. By moving relative to the chuck 24 and the cylindrical member 8 that are the width-defining members, a re-cylinder barrel portion 8 7 is formed between the chuck 24 and the cylindrical member 8 to wind the coil. This process is repeated to wire a plurality of coils in series with the shaft 2.

Next, with reference to FIG. 6, a method of removing the connecting coil wound around the winding shaft 2 from the winding shaft 2 will be described. FIG. 6 is a diagram showing a procedure for removing the connecting coil from the shaft 2.

To remove the connecting coil from the shaft 2, remove it from the shaft 2

Use 90.

As shown in FIG. 5, the removal jig 90 includes a semi-cylindrical housing portion 91 that houses the coupling coil 89 and a plurality of claw portions 9 that are inserted between adjacent coils in the coupling coil 89. And 2.

To remove the connecting coil 8 9, first, as shown in FIG. 6 (A), the removal jig 90 is moved upward so that the connecting coil 8 9 is accommodated in the accommodating portion 9 1 and the adjacent coil. Insert nail 92 between them.

Next, as shown in FIG. 6 (B), the shaft 2 is retracted and accommodated in the cylindrical member 8. At this time, the movement of the coupling coil 8 9 is restricted by the claw portion 92. The shaft 2 is extracted from the coil 8 9 and the connecting coil 8 9 is held by the removal jig 90.

Next, as shown in FIG. 6 (C), after the discharge rod 93 is inserted into the connecting coil 89, the removal jig 90 is lowered and returned to its original position. As a result, the connecting coil 8 9 is held by the discharge rod 9 3.

Then, as shown in Fig. 6 (D), the connecting coil 8 9 is dropped into the discharge box 9 4 by moving the union coil 8 9 up to the top of the discharge box 9 4 and moving the discharge rod 9 3 backward. Let As described above, the connecting coil 89 is collected in the discharge box 94.

The connecting coil 89 is arranged as a three-phase coil, and another two-phase coil is arranged between adjacent one-phase coils to form a permanent motor coil. A moving member such as a permanent magnet is disposed inside the rear motor coil, and the moving member is configured to move in accordance with the excitation of the linear motor coil.

According to the first embodiment described above, the following effects are obtained.

The wire 1 is wound only on the winding shaft 2, and a multi-connected coil can be manufactured by one winding shaft 2. Thus, since no winding jig corresponding to the number of connected coils is required, the structure of the winding device is not large and complicated, and a simple structure can be achieved.

Further, the width of each coil constituting the coupling coil is defined by the end surface 24 a of the chuck 24 and the end surface 8 b of the cylindrical member 8. In other words, since the adjustment of the width of each coil is performed by a common member, variation in the width of each coil can be suppressed.

Further, in the present embodiment, not the flyer-type winding method in which the nozzle is rotated around the jig, but a method in which the winding shaft 2 is rotated to perform the winding, so that the wire 1 is twisted. It is possible to perform stable shoreline. --Furthermore, because the structure of the coil winding device 100 is simple, the hot-air device 83 can be placed close to the winding shaft 2, so that the welding state of each coil is uniform. Can be.

(Second embodiment)

A coil winding apparatus 200 according to a second embodiment of the present invention will be described with reference to FIGS. In the following description, differences from the first embodiment will be mainly described. The same components as those in the first embodiment will be denoted by the same reference numerals and description thereof will be omitted.

First, the configuration of the coil winding device 200 will be described with reference to FIG. FIG. 7 is an enlarged perspective view of the vicinity of the saddle shaft in the coil winding device 200. FIG.

The coil winding device 200 is different from the coil winding device 100 according to the first embodiment in the shape of the winding shaft 2 and the winding method.

As shown in FIG. 7, the winding shaft 2 in the coil winding device 200 is coupled to the winding shaft body 2 e where the coil is wound and the tip of the winding shaft body 2 e, and compared with the winding shaft body 2 e. And a coil holding shaft 95 having a small diameter.

A cutout portion 2 4 f is formed in each of the split chuck 2 4 d and the split chuck 2 4 e. The cutout portion 24 f is closed by a flat plate 98. Thus, each of the divided chuck 24 d and the divided chuck 24 e has the plate 98, and the plate 98 is disposed with the end faces 98 a facing each other.

The split chuck 24 d plate 9 8 is provided with a binding pin 96 on which the wire 1 fed from the nozzle 4 is wound when the winding operation is started. Further, the end surface 9 8 a of the plate 9 8 of the split chuck 24 d is provided with a locking pin 25 for locking the connecting wire 26 between the coils wound around the shaft body 2 e. .

In the following, referring to FIG. 8 to FIG. 11, the winding method using the coil winding device 2 0 0 - explain about. FIGS. 8 to 11 are diagrams showing the winding operation by the coil winding device 20 0 in chronological order.

First, as shown in FIG. 8 (A), the distance between the end surface 24 a of the chuck 24 and the end surface 8 b of the cylindrical member 8, that is, the width of the winding body 2 e is substantially the outer diameter of the wire 1. Place Chuck 2 4 in

Next, as shown in FIG. 8 (B), the wire rod 1 fed out from the nozzle 4 is wound around the binding pin 96 by inserting it into the notch of the binding pin 96 and bending it.

Next, as shown in FIG. 8 (C), by moving the nozzle 4, the wire 1 is passed through the gap between the divided chuck 2 4 d and the divided chuck 2 4 e, that is, the gap between the pair of plates 98. Guide to the reel unit 2 e.

Next, as shown in Fig. 8 (D), with the nozzle 4 position fixed, by rotating the chuck 2 4 and the shaft 2 synchronously, the winding of the wire 1 to the shaft body 2 e is started. To do. The winding wire of the first layer is moved by the outer diameter of the wire 1 in the direction away from the cylindrical member 8 in the direction of the chuck 2 4 and the steel shaft 2 every time the wire 1 is wound around the winding body 2 e. Do. In other words, every time one wire 1 is wound on the winding shaft body 2 e, the distance between the end surface 2 4 a of the chuck 2 4 and the end surface 8 b of the cylindrical member 8 that is the width of the shaft body 2 e The shoreline is expanded by the diameter. When the desired heel width is reached, the movement of chuck 2 4 and heel shaft 2 is stopped. By performing the winding in this way, the first layer of wire 1 is aligned in alignment with the shaft main body 2 e.

In the second and subsequent layers, the movement of chuck 2 4 and shaft 2 is stopped, and the width of shaft shaft 2 e is fixed, and nozzle 4 is moved between end surface 2 4 a of chuck 2 4 and cylindrical member 8. This is done by reciprocating between the end face 8b and the shaft 2 in parallel. Specifically, the second layer wire is wound in the groove between the first layer wires, and the third layer wire is wound in the groove between the second layer wires. In this way, the wire rod 1 is wound in multiple layers on the shaft main body 2 e. •-A single coil 8 8 a that is connected and constitutes a connecting coil is formed.

After the winding of the coil 8 8 a is finished, as shown in FIG. 8 (E), the rotation of the chuck 24 is stopped in a state where the binding pin 96 is vertical. Then, the wire 1 between the binding pin 96 and the coil 88a is cut by the cutter 84.

Next, as shown in FIG. 8 (F), the chuck 24 and the shaft 2 are rotated approximately 90 degrees in the direction opposite to the winding direction, and then the chuck 24 is released. As a result, the wire 1 drawn out from the nozzle 4 is unwound, so that it becomes loose. Next, as shown in FIG. 9 (A), with the chuck 2 4 opened, the shaft 2 is moved forward, and the non-coiled portion 2 d where the wire 1 is not wound is protruded from the cylindrical member 8. . The nozzle 4 is also moved following the forward movement of the shaft 2.

Next, as shown in FIG. 9 (B), the chuck 24 is advanced, and the coil 88a wound on the shaft main body 2e is closed at a position where it is accommodated in the chuck 24. As a result, the non-coiled portion 2 d of the reel body 2 e passes through the opening 24 b of the chuck 24. By closing the chuck 24, the loose wire 1 fed from the nozzle 4 is sandwiched between the end faces 98a of the pair of plates 98. This state will be described with reference to FIG. FIG. 12 is a cross-sectional view showing a cross section perpendicular to the axial direction of the shaft 2 in a state where the wire 1 is wound on the shaft body 2 e.

The distance between the inner surface 9 8 b of the pair of plates 98 and the outer peripheral surface of the shaft main body 2 e is set to be substantially the same as the thickness L of the coil 8 8 a. Therefore, by closing the chuck 2 4, the slack from Nozure 4 to the coil 88 8 a, the brazing material 1 is made to the outer surface of the coil 8 8 a by the inner surface 9 8 b of the plate 9 8. Pressed and shored. In addition, the portion sandwiched between the end surfaces 98 8 a of the pair of plates 98 is bent in a direction perpendicular to the outer peripheral surface of the coil 88 8 a, that is, in the radial direction of the coil 88 8 a. The Thus, by closing the chuck 2 4 the coil --

The end-of-winding lead portion 2 6 a in the connecting wire 26 between the 8 8 a and the next coil 8 8 b is formed.

Next, as shown in FIG. 9 (C), the chuck 24 is retracted so that the opening 24b swings along the non-coiled portion 2d of the shaft main body 2e. As a result, the coil 8 8 a wound in the shaft main body 2 e moves along the outer peripheral surface of the shaft main body 2 e as the chuck 24 moves backward, as shown in FIG. 9 (D). Then, the shaft main body 2 e is guided to the coil holding shaft 9 5 at the tip. Here, since the coil holding shaft 95 is formed to have a smaller diameter than the main shaft 2e, the outer diameter of the coil holding shaft 95 is smaller than the inner diameter of the coil 88a. Accordingly, the coin 8 8 a is smoothly guided from the shaft main body 2 e to the coil holding shaft 95 and held in a state of being hung on the coil holding shaft 95. Note that the outer periphery of the coil holding shaft 95 is not limited to an octagonal shape as shown in FIG. 9D, but may be any shape such as a round shape.

After guiding the coil 8 8 a to the coil holding shaft 9 5, the chuck 24 is opened as shown in FIG. 9 (D). Then, as shown in FIG. 9 (E), the chuck 24 is moved forward, and the chuck 24 is closed so that the width of the winding shaft body 2 e is almost the outer diameter of the wire 1. Here, the length of the shaft main body 2 e protruding from the cylindrical member 8 is the width of the coil 8 8 b to be wound next, and the length of the connecting wire 26 connecting the coils 8 8 a and 8 8 b Thus, the relative position of the shaft main body 2 e with respect to the cylindrical member 8 is adjusted.

Next, as shown in FIG. 9 (E) and FIG. 9 (F), by moving the nozzle 4, the lead portion 26a is finally moved to the locking pin 25 provided on the divided chuck 24d. At the same time, the wire 1 drawn out from the nozzle 4 is passed through the gap between the divided chuck 2 4 d and the divided chuck 2 4 e and guided to the shaft main body 2 e.

Then, as shown in FIG. 10 (A), the wire rod 1 is wound in multiple layers on the shaft main body 2 e, and the rotation of the chuck 24 is stopped in a state where the binding pin 96 is vertical. This •-Coil 8 8 b is formed on the reel body 2 e. The winding method of the coil 8 8 b is the same as that shown in Fig. 8 (D). The coil 8 8 b is wound in the direction opposite to the winding direction of the coil 8 8 a.

Next, as shown in FIG. 10 (B), the chuck 24 and the shaft 2 are rotated about 90 degrees in the direction opposite to the winding direction of the coil 88, and then the chuck 24 is released. As a result, the wire rod 1 drawn out from the nozzle 4 is rolled back, so that it is in a loose state.

Next, as shown in FIG. 10 (C), with the chuck 2 4 opened, the winding shaft 2 is advanced, and the non-wired portion 2 d around which the wire 1 is not wound protrudes from the cylindrical member 8. Let

Next, as shown in FIG. 10 (D), the chuck 24 is advanced, and the coil 8 8 b wound around the winding shaft body 2 e is closed at a position where it is accommodated in the chuck 24. As a result, the loose wire 1 fed from the nozzle 4 is sandwiched between the end faces 98 a of the pair of plates 98 and bent in the radial direction of the coil 88 b. In this manner, the end lead portion 26a of the connecting wire 26 between the coil 8b and the next coiled coil 8c is formed.

Next, as shown in FIG. 10 (E), with the chuck 24 retracted, the lead start lead portion 2 6 b at the connecting wire 2 6 between the coil 8 8 a and the coil 8 8 b is Using the forming pin 9 7, the coil 8 8 b is bent and drawn out in the radial direction. Here, the connecting wire 2 6 between the coil 8 8 a and the coil 8 8 b has the winding end lead portion 2 6 a already formed by the chuck 24, so the forming pin 9 7 is inserted into the connecting wire 2 6. Easy to insert. Then, the lead portion 26 b can be easily formed by moving the forming pin 97 in the axial direction of the shaft 2 and in the horizontal direction perpendicular to the shaft 2. As a result, the end lead part 2 6 a and the start lead part 2 6 b at the connecting wire 2 6 between the coil 8 8 a and the coil 8 8 b are The coil 8 8 a and the coil 8 8 b are perpendicularly drawn from the outer peripheral surface. Incidentally, the forming pin 9 7 for forming the lead portion 26 b at the beginning of the connecting wire 26 between the coils is configured to be movable in three orthogonal directions like the nozzle 4. Further, the first lead portion 26 b may be formed by the forming pin 97 in the state shown in FIG. 10 (D), that is, the chuck 24 is closed. By forming the first lead portion 26 b in this manner, the retracting operation of the chuck 24 shown in FIG. 10 (E) can be omitted.

Next, as shown in FIG. 10 (F), the chuck 24 is advanced, and the coil 8 8 a wound on the shaft main body 2 e is closed at a position where it is accommodated in the chuck 24. Then, as shown in FIG. 11 (A), the chuck 24 is retracted along the non-coiled portion 2 d of the shaft main body 2 e. As a result, the coil 8 8 b wound around the shaft main body 2 e moves along the outer peripheral surface of the shaft main body 2 e as the chuck 24 moves backward, and the coil holding shaft at the tip of the shaft main body 2 e is moved. 9 Guided to 5.

Next, as shown in FIG. 11 (B), the chuck 24 is opened. The coil 8 8 a and the coil 8 8 b are connected to each other via a crossover 26 having a lead end portion 26 a and a lead lead portion 26 b drawn vertically from the outer peripheral surface.

Next, as shown in FIG. 11 (C), the chuck 24 is advanced, and the chuck 24 is closed so that the width of the heel shaft body 2 e is almost the outer diameter of the spring material 1.

By repeating the above procedure for the desired number of connected coils, a connected coil 89 having a plurality of coils connected in series is obtained as shown in FIG. 11 (D). FIG. 11 (D) shows four (8 8 a to 8 8 d) connecting coils 8 9. After the final winding of the coil 8 8 d is completed, the wire 1 between the coil 8 8 d and the nozzle 4 is cut by the cutter 8 4. Note that the first lead portion 26a of the first coiled coil 8a is drawn diagonally from the coil 8a as shown in Fig. 11 (D). , Using forming pin 9 7 and coil 8 8 a -Molded into a shape drawn vertically from the outer peripheral surface.

By conducting the winding of the connecting coil 8 9 as described above, the connecting coil 8 9 is held by the coil holding shaft 95. Therefore, the discharge rod 9 shown in the first embodiment is used. It can be easily recovered by using only 3.

As shown in FIG. 11 (D), the inner surface of the divided chuck 24 e is provided with each coil 8 8 a so that the distance between the coils sequentially fed to the coil holding shaft 95 is constant. A plurality of guides 99 for locking ˜8 8 d are provided at predetermined intervals.

In addition, it is necessary to peel off the insulating film at the lead part 26a and the lead part 26b at the end of the coil. This is done by using a peeling device (not shown) arranged in the vicinity of the nozzle 4.

According to the second embodiment described above, the following effects are obtained.

When the wire 1 is thick, the tension of the wire 1 is increased, and the outer diameter of the coil that is wound on the winding body 2 e is also increased. Therefore, the frictional force between the coil and the shaft main body 2 e increases, and a large force is required to remove the coil from the winding shaft main body 2 e. However, according to the second embodiment, each time the winding of each coil of the connecting coil 8 9 is completed, each coil goes to the coil holding shaft 9 5 coupled to the tip of the winding body 2 e. Led. In addition, since the coil holding shaft 95 is formed with a smaller diameter than the winding shaft body 2 e, even if the flange 1 is thick, the coil that is wound on the winding shaft body 2 e can be held smoothly. Can lead to axis 95.

In the case of a conventional winding device, the lead portions between the coils of the connecting coil are drawn out along the winding direction of the coils. Therefore, to form the lead portion, the wire wound around the coil is peeled off. It was necessary to bend the coil perpendicular to the outer peripheral surface of the coil. In addition, when the wire 1 is thick, the rigidity of the wire 1 is large, so it takes a lot of labor to form the lead portion on the connecting wire between the coils of the dissimilar coil. However, according to the second embodiment, the lead portion 26a can be formed only by closing the chuck 24 and the lead portion 26a can be formed by the forming pin 97. 2 6 b can be molded. Therefore, even when the wire 1 is thick, the lead end portion 26 a and the lead portion 26 b can be easily formed.

The present invention is not limited to the above-described embodiment, and it is obvious that various modifications can be made within the scope of the technical idea. Industrial applicability

The present invention can be applied to a connecting coil winding apparatus.

Claims

The scope of the claims

1. A coil winding device for winding a connecting coil in which a plurality of coils are connected, and a winding shaft that rotates about an axis and is movable in an axial direction;

A wire supply unit that feeds the wire to the shaft and is relatively movable in the axial direction of the shaft;

A chuck that defines the end of the coil when winding the coil, and allows the shaft to enter after coil winding, and

A coil winding apparatus, wherein coils wound around the winding shaft are sequentially accommodated in the chuck cage, and a plurality of coils are wound in series with respect to the winding shaft.

2. It further comprises a cylindrical member that supports the winding shaft in a swingable manner,

2. The coil winding device according to claim 1, wherein a winding width of each coil of the connection coil is defined between an end surface of the chuck and an end surface of the cylindrical member.

3. The chuck is

It is a split structure that can be opened,

2. The coil winding device according to claim 1, wherein an end of the coil is defined in a closed state, and the winding shaft is allowed to enter in an open state.

4.

A shaft body on which the coil is wound,

A coil holding shaft coupled to the tip of the winding shaft main body and having a smaller diameter than that of the saddle shaft main body,

After the coil wound around the winding shaft is accommodated in the chuck, the chuck 2. The coil winding device according to claim 1, wherein the coil that has been wound on the winding shaft is guided to and held by the coil holding shaft by retreating the winding along the winding shaft.

5. By closing the divided chuck and accommodating the coil wound around the winding shaft, the connecting wire between the coils is sandwiched by the chuck and bent in the radial direction of the coil. 4. The coil winding device according to claim 3, wherein the coil winding device is formed.

6. The coil winding device according to claim 5, wherein the chuck is provided with a locking member for locking the crossover.

7. A coil winding method for winding a connection coil in which a plurality of coils are connected, the step of feeding a wire between winding width defining members on a shaft rotating around the axis, and winding the coil;

Moving the winding shaft relative to the flange width defining member;

Extending a wire rod between the flange width defining members of the winding shaft, and winding the coil in series with the coil; and

A coil winding method characterized by repeating the steps and winding a plurality of coils in series with respect to the winding shaft.

8. One of the flange width defining members is a chuck that is divided so as to be openable, defines the end of the coil in the closed state, allows the rod shaft to enter in the open state, and winds around the flange shaft The coil winding method according to claim 5, wherein the coils that are formed are sequentially accommodated in the chuck.

9. After the coil wound on the winding shaft is accommodated in the chuck, the chuck is retracted along the winding shaft so that the coil wound on the winding shaft is moved to the tip of the winding shaft. 9. The coil winding method according to claim 8, wherein the coil winding method is guided to a coil holding shaft that is coupled to the coil shaft and has a smaller diameter than the coil shaft.

10. Closing the divided chuck and accommodating the coil wound around the winding shaft, sandwiching the connecting wire between the coils with the chuck, bending it in the radial direction of the coil, 9. The coil winding method according to claim 8, wherein the winding portion is formed.