JP2000253631A - Winding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a winding device at a low cost which can easily cope with adjustment of a coil winding diameter corresponding to an installation part position in a stator and changes of a stator form and coil specification and manufacture a coil excellent in characteristic, in the winding device for manufacturing a coil by installing wound wire in a slot of a stator. SOLUTION: In this winding device, a guide shaft 12 is installed on the lower end side of a shaft member 10 arranged on the center axis of a flyer 11. A winding frame is constituted of winding frame pins 14A, 15A, 14B, 15B fixed to movable plates 13A, 13B which can move along the guide shaft 12. By moving the movable plates 13A, 13B with motors 16A, 16B, the winding frame diameter can be continuously changed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a winding apparatus for manufacturing a coil by mounting a wound wire in a slot of a stator.

[0002]

2. Description of the Related Art As a coil for a motor, there is a coil formed by housing a wire wound around an iron core (stator) on a motor stator side. As a winding device for manufacturing such a coil, a device in which a wire (coil) wound around a winding frame is wound around a blade and the wire wound around the blade is inserted into a slot of a stator. For example,
JP-A-62-77038 and JP-A-62-182.
No. 058 proposes.

[0003]

However, these winding machines have the following problems.

In the winding machine disclosed in Japanese Patent Application Laid-Open No. Sho 62-770038, a coil wound around a bobbin is guided to a blade by moving means, and the coil is sequentially placed on a predetermined mounting portion of a stator core. In this winding machine, since the diameter of the winding frame is constant, the diameter of the coil does not always match the size of the mounting portion of the stator core. Therefore, the space factor of the coil mounted on the stator core is reduced, and the shape of the completed coil is disturbed, so that there is a problem that the coil is difficult to be molded.

On the other hand, the winding machine disclosed in Japanese Utility Model Laid-Open Publication No. 62-182058 is provided with a winding frame having a step-like shape in consideration of this problem, and winding is performed in each of these stages, so that the winding machine is stepped. The diameter of the winding can be changed. However, in this winding machine, the shape of the winding frame becomes complicated, and the winding diameter of the coil can be selected only in a stepwise manner provided on the winding frame, for example, when the shape of the stator is changed. Can not respond.

SUMMARY OF THE INVENTION The present invention has been made in view of such a problem. In a winding apparatus for manufacturing a coil by mounting a wound wire in a slot of a stator, the winding apparatus corresponds to a mounting portion in the stator. It is an object of the present invention to provide a low-cost product that can easily adjust the coil winding diameter and change the stator shape and coil specifications, and can manufacture a coil having excellent characteristics.

[0007]

According to a first aspect of the present invention, a flyer rotatable around an axis and a wire that is disposed adjacent to a wire feeding portion of the flyer and fed from the wire feeding portion are wound. A winding device comprising: a winding frame, a blade on which a wire wound on the winding frame is wound, and mounting means for mounting the wire wound on the blade to a stator, wherein the diameter of the winding frame is A winding frame diameter changing means for continuously changing is provided.

[0008] In the second aspect, the winding frame includes a plurality of winding pins fixed to a plurality of supporting members, and the winding frame diameter changing means relatively moves the plurality of supporting members. Means.

In a third aspect, the plurality of support members are a pair of movable plates, and a shaft member is arranged on a substantially central axis of the flyer so as not to rotate, and the pair of movable plates are attached to both sides of the shaft member. And the winding frame diameter changing means includes a guide shaft orthogonal to the shaft member, and a pair of motors provided corresponding to each moving plate, and an output constituting a ball screw of these motors. By connecting the shafts to the corresponding moving plates, each moving plate can be moved along the guide axis.

In a fourth aspect, the shaft member has a hollow portion, and a slip ring that rotates synchronously with the flyer is provided on an outer periphery of the shaft member, and the motor has a hollow portion of the slip ring and the shaft member. The wire is connected to a power supply via a wire provided in the flyer, and the wire is supplied to a wire feed-out portion of the flyer through a through path penetrating up and down the slip ring.

[0011]

According to the first aspect of the present invention, the diameter of the bobbin can be continuously changed by the bobbin diameter changing means, so that the bobbin diameter (coil diameter) corresponds to the mounting portion of the stator. Winding can be performed while adjusting the size, and can be wound down on the blade. Therefore, the mounted wire is properly and exactly accommodated in the slot of the stator, so that the space factor of the coil is improved and a good quality coil can be manufactured. Also, since no extra wires protrude above and below the stator,
The molding of the coil end portion is facilitated, and the characteristics of the coil are improved because there is no useless portion in the coil. Also,
When the wire is mounted on the stator, it can be mounted smoothly. Further, by continuously changing the diameter of the bobbin, it is possible to easily cope with any change in the stator shape and coil specification.

According to the second aspect, the winding frame is configured by fixing the winding frame pins to each of the plurality of support members.
It can be made lightweight and compact with a simple configuration. The reel diameter changing means may be a means for relatively moving the plurality of support members, and can be easily configured at low cost with a motor or the like for moving the support members. Can be performed based on the amount of movement of Further, the shape of the bobbin shape can be easily and freely changed by changing the arrangement of the bobbin pins.

According to the third aspect of the present invention, since the reel diameter changing means comprises a guide shaft and a pair of motors, the reel diameter changing means can be configured at low cost, and the diameter of the reel is adjusted by motor control. Can be performed with high precision.

According to the fourth aspect of the present invention, power is supplied to the motor through the slip ring and the wiring provided in the hollow portion of the shaft member, so that the structure of the winding device is not complicated, and Since the wire is supplied through a through path vertically penetrating the slip ring, the wire does not interfere with the wiring to the motor even when the flyer rotates.

[0015]

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

1 and 2 show the overall configuration of a winding device according to the present embodiment.

As shown in the figure, a cylindrical flyer 3 whose tip is directed downward is rotatably supported on a support frame 2 extending above a base 1 of the winding device via a bearing. Is done. The flyer 3 is connected to a drive motor 4 via a pulley 5 and a belt 6, and is driven to rotate about an axis. In the present embodiment, the rotation axis of the flyer 3 is oriented in the vertical direction. However, the direction of the rotation axis of the flyer 3 is arbitrary, and may be, for example, the horizontal direction.

The wire 7 is supplied from a wire supply source (not shown) via a tension device (not shown). Then, the wire 7 is guided through a wire guide passage 3b formed in the flyer 3 via a guide pulley 8 (or a ceramic nozzle) fixed to the support frame 2, and is fed from a wire feed portion 3a of the flyer 3. here,
The wire feed-out portion 3a is a portion extending to the lower end side of the flyer 3, and is disposed at a position separated by a predetermined distance from the rotation axis (center axis) of the flyer 3. The end of the wire 7 fed from the wire feeder 3 a is gripped by a wire gripping mechanism 9 arranged below the flyer 3.

On a substantially central axis of the flyer 3, a shaft member 10 which is movable in the axial direction is arranged so as not to rotate. A bobbin mechanism 11 is supported on the lower end side of the shaft member 10 and is arranged on the side of the wire rod feeding section 3a.

The winding frame mechanism 11 constitutes a winding frame around which the wire 7 fed from the wire feeding portion 3a is wound.

More specifically, the winding frame mechanism 11 includes a pair of moving plates 13A and 13B on both sides of the flange 10a at the lower end of the shaft member 10. These moving plates 13A, 13
B is movably supported by a horizontally fixed guide shaft 12 passing through the flange portion 10a, and is connected to output shafts of motors 16A and 16B constituting ball screws, respectively. 16B can be moved by driving to change the distance between them.

The moving plate 13A has reel pins 14A, 15A.
However, the winding pins 14B and 15B are provided on the moving plate 13B,
Each is fixed in a state of hanging downward in parallel. Thereby, the winding frame pins 14A, 15A, 14B, 15B
Are arranged on the four vertices of the square. The wire 7 fed from the wire feeding portion 3a is wound around the outside of a rectangular winding frame formed by these four winding pins 14A, 15A, 14B, 15B.

In this case, since the distance between the movable plates 13A and 13B can be changed as described above,
The size of the square formed by 4A, 15A, 14B, and 15B, that is, the diameter of the bobbin can be continuously changed. The adjustment of the bobbin diameter is performed by the movable plates 13A and 13A.
Since it can be performed by controlling the motors 16A and 16B based on the movement amount of B, it is possible to easily achieve high precision.

The upper end of the shaft member 10 is rotatably supported by a lifting plate 17 via a bearing. The elevating plate 17 can be moved up and down along guide shafts 19A and 19B provided in the support frame 2 so as to extend in the vertical direction by driving of a driving motor 18. As a result, the shaft member 7 moves up and down with respect to the flyer 3, and the reel pin 14 of the reel mechanism 10 is moved.
A, 15A, 14B, and 15B correspond to the wire feeding portion 3a, that is, the reel pins 14A, 15A, and 14B.
The positions where the windings are formed on B and 15B can be changed.

A blade mechanism 20 is arranged on the base 1 so as to be located below the flyer 3. The blade mechanism 20 includes an annular base 22 rotatably supported on a support 21 and a blade 23 erected along the base 22. Here, the blade 23 is configured by arranging a plurality of needles of a number determined according to the shape (the number of magnetic poles and the number of layers) of a stator 34 described later at a predetermined interval. The wire 7 wound on the winding frame mechanism 11 is sequentially wound on the blade 23.

The base 22 of the blade mechanism 20 is connected to a motor 26 via a belt 24 and a pulley 25 and is driven to rotate. Thereby, the rotation angle of the blade 23 can be changed, and the position where the wire 7 is wound off from the winding frame mechanism 11 (unwinding position) can be sequentially changed.

The support 21 of the blade mechanism 20 is movable along the rail 27. After the wire 7 is wound down on the blade 23, it is driven by a drive mechanism (not shown) to insert the coil. It moves above the child 31 and below the stator support 32.

The coil insert 31 has a plurality of protrusions 31a extending laterally at positions corresponding to the positions between the needles of the blade 23.
And can be moved up and down by driving the elevating actuator 33. As a result, when the blade 2 rises up from between the annular holes of the base 22 disposed above, the blade 2
3 pushes up the wire 7 wound around the blade 23, and the stator support 3
2 can be pushed into the inside of the stator 34 supported.

The stator 34 is an annular member having a gear-shaped inner peripheral surface. The stator 34 has a slot 35 formed between the gears so that the wound wire 7 (coil) is mounted. (See FIG. 11).

Although not shown in the present embodiment, when the coil is mounted on the stator 34, the wire 7 is inserted into the slot 35.
It is also possible to provide a pressing member that presses the wire 7 accommodated in the slot 35 so that the coil can be completely pushed into the inside, and the coil can be molded.

Further, as described above, in the present embodiment, the coil is pushed up by the coil inserter 31 to be accommodated in the stator 34, but the present invention is not limited to such a form. With a hook member,
The coil is pulled up by the hook member and the stator 34 is lifted.
It may be accommodated inside.

FIG. 3 shows a motor 16A of the bobbin mechanism 11,
The electrical wiring to 16B is shown in detail.

As shown in the figure, a slip ring 40 is rotatably mounted on the elevating plate 17 via a bearing, and is disposed around the shaft member 10.

The slip ring 40 is an annular member as shown in FIG. 4 and includes an outer conductive ring 41 disposed along the outer peripheral surface and an inner conductive ring 41 disposed along the inner peripheral surface. And a ring 42. These outer conductive rings 4
1 and the inner peripheral side conductive ring 42 are electrically connected via a connection conductor 43. Further, the outer peripheral side conduction ring 41
Is connected to a power supply (not shown) via a wire 45 extending from the outer peripheral brush 44 so that the outer peripheral brush 44 slidably contacts the outer periphery. On the other hand, the inner peripheral conduction ring 42 is connected to the wiring 47 via the inner peripheral brush 46 that contacts the inner peripheral surface. The wiring 47 is connected to the shaft member 1.
The motor 16A is connected to the motors 16A and 16B through the hollow portion 10b. With such a configuration, power is supplied from the power supply to the motors 16A and 16B without complicating the configuration of the winding device.

The slip ring 40 includes pulleys 52 and 53 provided on a rotating shaft 51 and belts 54 and 55.
, And is rotated in synchronization with the flyer 3. In this case, since the wire 7 is guided through the through path 48 vertically penetrating the slip ring 40, when the slip ring 40 rotates, the wire 7 revolves around the shaft member 10. There is no interference.

Next, a winding procedure by the winding device of the present embodiment will be described with reference to FIGS.

As shown in FIG. 5, the wire 7 fed from the wire feeder 3a of the flyer 3 has its end gripped by a wire gripping mechanism 9. In this state, the diameter of the bobbin formed by the bobbin pins 14A, 15A, 14B, 15B of the bobbin mechanism 11 is set to a predetermined diameter according to the shape of the stator 34, and the flyer 3 is rotated. , Around the winding pin 14A, 15A, 14B, 15B of the winding mechanism 11. In this case, by raising and lowering the lifting plate 17,
Reel pins 14A, 15 opposed to the wire feeding portion 3a
By shifting the positions of A, 14B and 15B,
Aligned winding is sequentially performed at predetermined positions of the winding frame pins 14A, 15A, 14B, and 15B.

When a predetermined bundle of coil windings (windings having a predetermined number of turns) is completed in this way, as shown in FIG.
By reducing the distance between the movable plates 13A, 13B by driving the motors 16A, 16B, the reel pins 14A, 15A,
The wire 7 is slid down from around 4B and 15B, and the wire 7 is wound down at a predetermined position of the blade 23.

Subsequently, by moving the movable plates 13A and 13B, the winding frame diameter of the winding frame mechanism 11 is gradually reduced to an appropriate size determined by the shape of the stator 34.
Winding is performed in the same procedure, and the wire 7 wound around the winding frame mechanism 11 is sequentially wound down on the blade 23. As a result, the blade 23 is in a state where a plurality of layers (three layers in the present embodiment) of the wound wire 7 are stacked so that the winding diameter decreases toward the upper layer. Specifically, the coil of the lowermost layer is a large-diameter coil wound around five needles of the blade 23, and the coil of the intermediate layer is a medium-diameter coil wound around three needles, The lowest coil is 1
It becomes a small-diameter coil wound around the needle.

As described above, in this embodiment, the diameter of the bobbin is changed for each winding of each coil.
The present invention is not limited to such a form. For example, a form in which the winding diameter is changed in the course of winding of each layer of the coil and the coil diameter is finely changed in each layer of the coil may be adopted.

When the winding and unwinding of the wire to be unwound to the predetermined position of the blade 23 have been completed in this way, as shown in FIG.
Is rotated by a predetermined angle (for example, 90 degrees), and a new unwinding position of the blade 23 is arranged below the bobbin mechanism 11. In this state, by sequentially changing the winding, the unwinding, and the winding diameter in the same procedure as described above, the wire 7 is wound down in a stacked state at a new unwinding position of the blade 23.

When the wire 7 is wound down over the entire circumference of the blade 23 as shown in FIG. 9 by repeating such a procedure, the blade mechanism 20 is moved above the coil insert 31 and below the stator support 32. Go to In this state, the coil insert 31 is raised from between the annular holes of the base 22.

As a result, as shown in FIGS. 10 and 11, the wire 7 wound up by the blade 23 is pushed up from the blade 23 by the coil inserter 31, and the inside of the stator 34 supported by the stator support 32. It is pushed into.

In this case, the diameter of each layer of the wire 7 wound on the blade 23 is, as described above,
Since the size is properly adjusted to the mounting portion of No. 4, each slot 35 of the stator 34 is smoothly formed. More specifically, as shown in FIG. 12, for example, when the wire 7 (coil) wound on the stator 34 is mounted, the first layer (uppermost layer) 7a of the coil is inserted into the adjacent slots 35a and 35b. Then, the second layer (intermediate layer) 7b of the coil is inserted into the slots 35c and 35d on both sides of the slots 35a and 35b, and the third layer (lowest layer) of the coil is inserted.
7c is a slot 35 on both sides of the slots 35c and 35d.
e, 35f, but each layer 7a, 7b,
7c are slots 35a and 35b, 35c and 35d,
It is wound to a diameter corresponding to the interval between 35e and 35f,
The mounting of the wire 7 on the stator 34 is performed extremely smoothly.

Each layer 7a, 7 of the mounted coil
Since b and 7c do not overlap, the space factor of the completed coil is improved. Also, each layer 7a, 7b of the coil,
7c is fitted exactly in the slot 35 of the stator 34, and the extra wire 7 does not protrude above and below the stator 34, so that the molding of the coil end portion is facilitated, and the coil has no unnecessary parts, and the coil characteristics are reduced. (The characteristics of the motor using the completed coil) are improved.

When the mounting of the wire 7 on the stator 34 is completed in this way, the coil inserter 31 is lowered to complete the winding operation.

As described above, according to the winding apparatus of the present invention, the winding diameter of the winding mechanism of the winding mechanism 11 can be continuously adjusted. Can be changed to the blade 23
The coil wound into the stator 34 is smoothly inserted into the stator 34 without waste, and a high-quality coil having a large space factor can be manufactured.

Further, since the winding diameter of the coil can be continuously and freely changed by changing the winding frame diameter of the winding mechanism 11, it is possible to easily cope with a change in the shape of the stator 34 and a change in the specification of the coil.

[Brief description of the drawings]

FIG. 1 is a perspective view of a winding device showing an embodiment of the present invention.

FIG. 2 is a sectional view of the same.

FIG. 3 is a partial sectional view of the same.

FIG. 4 is a perspective view showing the same slip ring.

FIG. 5 is an explanatory view showing a winding procedure.

FIG. 6 is an explanatory view showing a winding procedure.

FIG. 7 is an explanatory view showing a winding procedure.

FIG. 8 is an explanatory diagram showing a winding procedure.

FIG. 9 is an explanatory diagram showing a winding procedure.

FIG. 10 is an explanatory diagram showing a winding procedure.

FIG. 11 is an explanatory view showing a winding procedure.

FIG. 12 is an explanatory view showing a winding procedure.

[Explanation of symbols]

 Reference Signs List 3 flyer 7 wire rod 10 shaft member 11 reel mechanism 12 guide shaft 13A, 13B moving plate 14A, 14B reel pin 15A, 15B reel pin 16A, 16B motor 20 blade mechanism 21 support base 22 base 23 blade 26 motor 27 rail 31 Coil inserter 34 Stator 35 Slot 40 Slip ring 47 Wiring

Claims (4)

[Claims] 1. A flyer rotatable around an axis, a winding frame disposed adjacent to a wire feeding portion of the flyer and wound around a wire fed from the wire feeding portion, and a winding wire wound around the winding frame. And a mounting means for mounting the wire wound on the blade to a stator, wherein the diameter of the winder is continuously changed. A winding device comprising means. 2. The reel according to claim 2, wherein the reel comprises a plurality of reel pins fixed to a plurality of support members, and the reel diameter changing means is means for relatively moving the plurality of support members. The winding device according to claim 1, wherein: 3. The plurality of support members are a pair of movable plates, wherein a shaft member is non-rotatably disposed on a substantially central axis of the flyer, and the pair of movable plates are disposed on both sides of the shaft member. The winding frame diameter changing means includes a guide shaft orthogonal to the shaft member, and a pair of motors provided corresponding to each moving plate, and corresponds to output shafts constituting ball screws of these motors. The winding device according to claim 2, wherein each movable plate is movable along the guide axis by being connected to the movable plate. 4. The shaft member has a hollow portion, and a slip ring rotating in synchronization with the flyer is provided on an outer periphery of the shaft member, and the motor is disposed in the hollow portion of the slip ring and the shaft member. 4. The winding according to claim 3, wherein the wire is connected to a power supply via a wire provided, and the wire is supplied to a wire feed-out portion of the flyer through a through path penetrating up and down the slip ring. Line equipment.