JPH0662548A - Apparatus for binding terminal wire or the like to stator coil end - Google Patents

Abstract

PURPOSE:To bind the ends of stator coils with terminal wires easily and quickly without much manual work. CONSTITUTION:A chuck 4 is provided for supporting a motor stator S for rotational indexing. A pair of openable wire guides 18 and 19 is opposed to the coil end E of the motor stator on the chuck. The wire guides have grooves 22 in their opposed sides in order to guide binding wire C along the peripheries of the coil end and terminal wire. A cylinder 17 is provided for varying the spacing between the chuck and the wire guides. The grooves 22 in the wire guides receive the binding wire C fed from a wire supply unit 25.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a binding device for a lead wire or the like to a coil end portion of a motor stator.

[0002]

2. Description of the Related Art Conventionally, in the manufacturing process of a motor stator, when the lead wire is tightly bound to the coil end portion,
An operator manually winds the binding wire around the coil end and the outer circumference of the output wire to bind the output wire.

[0003]

Therefore, in this conventional method, there is a problem that a lot of labor and time are required for binding the lead wire or the like to the coil end portion, which hinders mass production of the motor stator. Atsuta

The present invention has been made in view of the problems of such a conventional method, and its object is to bind the lead wire or the like to the coil end portion.
A coil end of a motor stator, which can be performed easily and in a short time without exerting a great amount of labor on an operator or damaging the coil end portion, and can contribute to mass production of a motor stator. It is to provide a binding device such as a lead wire to the part.

[0005]

In order to achieve the above-mentioned object, a binding device such as a lead wire for a coil end portion of a motor stator according to the present invention has the following structure. That is, a support body that supports the motor stator and a coil end portion of the motor stator that is supported on the support body are arranged to face each other, and are used to guide the binding wire around the coil end portion and the outer circumference of the lead wire. At least a pair of openable and closable wire rod guide bodies having guide grooves, a moving means for relatively moving the support body and the wire rod guide body in a direction of approaching or separating, and a guide groove of the wire rod guide body. A wire rod supply means for supplying a wire rod for binding.

[0006]

[Operation] With the wire rod guide open, the wire rod guide is moved relatively close to the coil end of the motor stator on the support, and then the wire rod guide is closed and the wire rod guide is closed. The parts are arranged to face each other along the outer circumference of the lead wire. Next, the wire material for binding is supplied to the guide groove of the wire material guide body from the wire material supply means, and is wound around the outer circumference of the coil end portion and the lead wire. Then, the wire rod guide body is opened, and the winding portion of the wire rod is tightened, so that the lead wire is tightly bound on the coil end portion.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a binding device such as a lead wire for a coil end portion of a motor stator according to the present invention will be described below.
It will be described with reference to the drawings.

As shown in FIGS. 1 and 2, a table 2 is supported on one side upper surface of the frame 1 so as to be movable along a pair of rails 3. A support is provided on the upper surface of the table 2.
For example, a rotary indexing chuck 4 is attached,
This chuck 4 allows the motor stator S to move to the table 2
It is rotatably supported on the index. The frame 1 is provided with a moving mechanism 5, and by rotating an operation handle 6 of the moving mechanism 5, the table 2 is moved through a screw rod 7 or the like.
Can be moved to dispose the motor stator S at a predetermined work position.

An elevating table 8 is arranged on the upper surface of the other side of the frame 1 so as to be vertically movable along a pair of guide bars 9, and a supporting table 10 is vertically movable through a pair of guide bars 11 on the upper part thereof. Supported by. A lifting mechanism 12 is provided below the frame 1, and an operating handle 13 of the lifting mechanism 12 is provided.
By rotating the bevel gears 14 and 15 and the screw rods 16 and the like, the elevating table 8 is moved up and down, and the supporting table 10 is moved.
Can be set at a predetermined height position according to the size of the motor stator S. As a moving means, for example, a moving air cylinder 17 is provided on the lifting table 8, and the moving air cylinder 17 causes the supporting table 10 to move away from the motor stator S on the chuck 4 and a motor stator. It is moved to a lower position that approaches S.

A pair of wire rod guide bodies 18, 19 are provided on the lower surface side of the support base 10 so as to face the coil end portion E of the motor stator S on the chuck 4, and are mounted on the rail 20 via a mounting metal fitting M1 and the like. Semi-circular recesses are provided on the inner surfaces of the wire guide members 18, 19 facing each other so that they can be opened and closed along the wire rod guide members 18, 19. An opening / closing air cylinder 21 is attached to each of the wire rod guide bodies 18 and 19, and the wire rod guide body 1 is provided by the opening / closing air cylinder 21.
8, 19 are moved and arranged in the opening device shown in FIG. 5 and the closed position shown in FIG.

A guide groove 22 is formed continuously on the inner surface of the recess of each of the wire rod guide bodies 18, 19 and has a wire rod inlet 23 opening at the outer surface of one wire rod guide body 18 at one end thereof.
And the other wire rod guide body 1 is provided at the other end.
9 is provided with a wire outlet 24 that opens to the outer surface (see FIGS. 3 and 5). Then, as shown in FIG. 7, the wire rod guide bodies 18 and 19 are closed and arranged along the outer periphery of the coil end portion E and the lead wire L through the gap between the coil end portion E of the motor stator S. In this state, the wire rod C for binding is supplied from the wire rod inlet 23 to the wire rod outlet 24 along the guide groove 22, so that the wire rod C is circulated around the coil end portion E and the lead wire L. As shown in FIG. 4, it is possible to tie a knot, which has been known as a method of binding a string since ancient times.

As the wire rod C for binding, for example, a core material of polyester monofilament is preferably used, which is covered with an exterior material woven into a bag shape with polyester yarn. As long as it is an insulating wire having a waist and a waist, it can be used by changing it to another wire.

A wire rod supply unit 25, which is a wire rod supply means, is movably supported along the rail 20 on the lower surface side of the support base 10. On the side of the support base 10,
A moving means for moving the wire rod supply unit 25, for example, a moving air cylinder 26 is provided via the mounting metal fitting M2, and the wire rod supplying unit 25 is moved by the moving air cylinder 26 as shown in FIG. Wire guide body 1
8 and 19, the retracted position is separated from the wire rod guide members 18 and 19 and the retracted position is separated from the wire guide members 18 and 19, as shown in FIG.

A bobbin 27 is detachably housed in the wire rod supply unit 25, and a wire rod C for binding is wound around the bobbin 27. In addition, a pair of supply rollers 28, 29 are provided in the wire rod supply unit 25, and the supply rollers 28, 29 are rotated by a motor 30 to feed the wire rod C out of the bobbin 27 and It is supplied to the guide groove 22 of the guide bodies 18 and 19. A curl straightening heater 31 is arranged in the wire rod path between the bobbin 27 and the supply rollers 28 and 29, and the curl of the wire rod C is straightened by the heater 31.

A pair of wire rod tightening gripping bodies 32 and 33 are arranged opposite to each other in the wire rod supply unit 25, and the gripping bodies 32 and 33 are closed by a gripping body air cylinder 34 as shown in FIG. As a result, the supply end of the wire rod C wrapping around the outer circumference of the coil end portion E and the lead wire L is gripped. In front of the supply rollers 28 and 29, a wire rod cutting device, for example, a pair of wire rod cutting blades 35 having a heater therein,
The wire rod C is cut open on the supply side of the wire rod C by closing the wire rod cutting blades 35 and 36 as shown in FIG.

A pair of wire rod end gripping bodies 3 are provided at the lower portion of the support 10 near the wire rod outlet 24 of the wire rod guide body 19.
7, 38 are opposed to each other. Then, as shown in FIG. 10, the gripping bodies 37 and 38 are the gripping air cylinders 3.
The end of the wire C wrapped around the outer circumference of the coil end portion E and the lead wire L by being closed at 9 is gripped at the same time as the wire rod tightening body 32, 33 grips the supply side of the wire C. To be done.

A wire rod end cutting mechanism 40 is provided in the frame 1 at a position close to the motor stator S supported by the chuck 4, and a coil end portion E of the motor stator S is moved by a moving air cylinder 41. And an inactive position spaced apart from the active position. The wire rod end cutting mechanism 40 is provided with a pair of wire rod holding bodies 42, and as shown in FIG. 15, the wire rod holding bodies 42 are closed by a holding air cylinder 43, so that the coil end portion E and the lead wire An extended portion extending from the circumscribed portion of the wire rod C that is wound around the outer periphery of the L and is tightened is held.
The wire end cutting mechanism 40 is provided with an ultrasonic cutting blade 44,
The ultrasonic cutting blade 44 cuts the extending portion of the wire C and welds the knot.

Next, the operation of the binding device for the lead wire or the like to the coil end portion E of the motor stator S thus constructed will be described.

When the lead wire L is to be tightly bound to the coil end portion E of the motor stator S by this binding device, first, in the first step shown in FIG. 5, the rotary indexing chuck 4 on the table 2 is used. The motor stator S is mounted on the motor, and the operation handle 6 of the moving mechanism 5 is rotated to move the coil end portion E to a working position below the wire rod guides 18 and 19, and the operation handle 13 of the lifting mechanism 12 is arranged. Is operated to dispose the wire guide members 18, 19 directly above the coil end portion E so as to face each other.

When the operation of the apparatus is started in this state, as shown in FIG.
In the second step shown in FIG.
Thus, the support base 10 is lowered, and the wire rod guide bodies 18 and 19 in the open state are arranged on both sides of the coil end portion E and the lead wire L. Next, in the third step shown in FIG. 7, the wire rod guide body 18,
19 is closed, and the guide grooves 22 of the wire rod guide bodies 18, 19 are arranged to face each other along the outer circumference of the coil end portion E and the lead wire L.

Thereafter, in the fourth step shown in FIG. 8, the wire rod supply unit 2 is moved by the moving air cylinder 26.
5 is moved to the supply position near the wire rod guides 18, 19. In this state, in the fifth step shown in FIG. 9, the supply rollers 28 and 29 of the wire rod supply unit 25 are rotated by the motor 30, and the wire rod C for binding is attached to the bobbin 2.
7 and is curled by the curl straightening heater 31 and then supplied to the guide groove 22 from the wire rod inlet 23 of the wire rod guide bodies 18 and 19, and is also held in the open state via the wire rod outlet 24. It is extended to between body 37 and 38. As a result, the wire C is in the state of a knot as shown in FIG. 4, and the coil end portion E and the lead wire L are
Is lapped around the outer circumference of.

Then, in the sixth step shown in FIG. 10, after the supply rollers 28 and 29 are stopped from rotating, the gripping body air cylinder 34 is used to grip the wire rod tightening grippers 32 and 33.
Is closed and the supply side of the winding portion of the wire C is gripped, and at the same time, the gripping body air cylinder 39 closes the wire rod terminal grippers 37 and 38, and the terminal side of the winding portion of the wire C is gripped. In this state, in the seventh step shown in FIG. 11, the wire rod guide body 1 is moved by the opening / closing air cylinder 21.
8 and 19 are opened, and the circumference of the wire C is the wire guide body 1.
It is separated from the guide grooves 22 of 8 and 19.

After that, in the eighth step shown in FIG. 12, the supporting base 10 is lowered by the moving air cylinder 17, and the wire rod inlet 23 and the wire rod outlet 24 of the wire rod guide bodies 18, 19 are knotted at the circling portion of the wire rod C. And are arranged on a straight line. Further, the wire rod supply unit 25 is moved to the retracted position separated from the wire rod guide bodies 18, 19 by the moving air cylinder 26, whereby the winding portion of the wire rod C is tightened, and the lead wire L is coiled. Bonded on part E.

Next, in the ninth step shown in FIG. 13, the wire rod cutting blades 35 and 36 in the wire rod supply unit 25 are closed, and the supply side of the winding portion of the wire rod C is overheated. Then, in the tenth step shown in FIG. 14, the wire rod terminal gripping bodies 37, 3 are moved by the gripping air cylinder 39.
8 is released, the terminal side of the winding portion of the wire C is released from the gripped state, the support base 10 is lifted by the moving air cylinder 17, and the wire guide bodies 18, 19 are separated from the coil end portion E.

Further, in the eleventh step shown in FIG. 15, the wire rod end cutting mechanism 4 is moved by the moving air cylinder 41.
0 is moved to the working position corresponding to the coil end portion E. In this state, the wire rod holding body 42 is closed by the holding air cylinder 43, and the extending portion of the wire rod C extending from the winding portion is held. Then, the ultrasonic cutting blade 44 cuts the extended portion of the wire C and welds the knot.

The lead wire L to the coil end portion E is as described above.
After the binding operation at one location is completed, the motor indexing chuck 4 rotates the motor stator S by a predetermined pitch as required, and the new binding locations of the coil end portion E and the lead wire L are changed to a wire material. It is arranged to face the guide bodies 18 and 19. Then, in this state, the operations of the first to eleventh steps shown in FIGS. 5 to 15 are repeatedly performed, and the lead wire L is tightly bound to the coil end portion E by the wire rod C.

The present invention is not limited to the configuration of the above-mentioned embodiment, and the design can be changed as follows, for example.

(1) The side of the table 2 supporting the motor stator S may be moved up and down to move the coil end portion E toward and away from the wire rod guide bodies 18, 19.

(2) The bobbin 27, around which the binding wire C is wound, is rotatably supported on the frame 1 without being installed in the wire supply unit 25, and the wire C fed from the bobbin 27 is guided by the wire guide body. Guide groove 2 of 18, 19
It may be configured to be supplied to two.

(3) A wire rod cutting device such as the wire rod cutting blades 35 and 36 is not installed in the wire rod supply unit 25.
The frame 1 may be supported at an appropriate place.

(4) The wire cutting blades 35, 36 are changed to cutting blades utilizing ultrasonic waves, or the cutting blade 44 of the wire end cutting mechanism 40 is changed to a cutting blade equipped with a heater. You may change to the cutting blade of other functions.

(5) The moving air cylinder 26 may be changed to a device in which a ball screw is driven by a torque motor. With this device, you can freely set the torque,
In the eighth step shown in FIG. 12, the tightening strength of the wire rod C can be arbitrarily adjusted.

(6) It is also possible to provide a plurality of pairs of wire rod guide bodies 18 and 19 so that the lead wire L can be tightly bound at a plurality of positions of the coil end portion E at the same time.

(7) By supplying the wire rod C to the guide grooves 22 formed on the inner surfaces of the recesses of the wire rod guide bodies 18 and 19, the coil end portion E and the outer circumference of the lead wire L are covered with, for example, a knot. It may be changed so that a knot other than a knot is possible.

(8) Instead of the wire rod holding body 42, for example, a wire rod twisting device P as shown in FIG. 16 may be attached to the frame 1. This wire rod twisting device P is
A rotating body 46 having a pair of through-grooves 45 through which the wire C is sandwiched, a timing belt 47 for imparting rotational drive to the rotating body 46, and the wire C so as not to come off from the through-groove 45. Openable and closable arm 48 that gently clamps C and belt wheel 49 for timing belt guide
And a belt wheel 50 for driving, and the rotating body 46.
By rotating the wire, a twist is applied to the extending portion extending from the winding portion of the wire C to prevent loosening and fraying of the knot. After the twist is applied, the wire C
Is cut at its extension. In addition, 51 is an arm 48
Indicates the center of opening and closing. Reference numeral 52 is a motor with a reduction gear, and 53 is an air cylinder for moving the entire wire rod twisting device P forward and backward with respect to the wire rod C.

[0036]

EFFECTS OF THE INVENTION Since the present invention is configured as described above, the operator is required to perform a great deal of labor and the coil end portion is damaged when binding the lead wire or the like to the coil end portion. Without doing so, it can be performed easily and in a short time, which can contribute to mass production of motor stators.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a binding device such as a lead wire for a coil end portion of a motor statuser according to the present invention.

FIG. 2 is a side view of the binding device.

FIG. 3 is an enlarged development view showing a pair of wire rod guide bodies in an expanded manner.

FIG. 4 is a perspective view showing a wire rod in a knotted state.

FIG. 5 is a schematic front view showing a first step of the operation of binding the lead wire to the coil end portion.

FIG. 6 is a schematic front view showing the second step of the binding operation.

FIG. 7 is a schematic front view showing a third step of the binding operation.

FIG. 8 is a schematic front view showing a fourth step in the same binding operation.

FIG. 9 is a schematic front view showing the fifth step of the binding operation.

FIG. 10 is also a schematic front view showing a sixth step of the binding action.

FIG. 11 is a schematic front view showing the seventh step of the binding action in the same manner.

FIG. 12 is a schematic front view showing the eighth step in the same binding operation.

FIG. 13 is a schematic front view showing the ninth step in the same binding operation.

FIG. 14 is a schematic front view showing the tenth step of the binding action.

FIG. 15 is a schematic front view showing the 11th step of the binding action.

FIG. 16 is a plan view of a wire rod twisting device that applies a twist to an extending portion extending from the winding portion of the wire rod.

[Explanation of symbols]

 4 Support (Rotary indexing chuck) 17 Moving means (moving air cylinder) 18 Wire rod guide body 19 Wire rod guide body 22 Guide groove 25 Wire rod feeding means (Wire rod feeding unit) S Motor stator E Coil end portion L Lead wire C Wire material for bondage

Claims (1)

[Claims] 1. A support body for supporting a motor stator and a coil end portion of a motor stator supported on the support body, which is disposed so as to face each other, and a binding wire is circulated and guided around the coil end portion and the outer circumference of the lead wire. At least one pair of openable and closable wire rod guide bodies having a guide groove for moving, a moving means for relatively moving the support body and the wire rod guide body in a direction of approaching or separating from each other, and of the wire rod guide body. A binding device such as a lead wire for a coil end portion of a motor stator, which is provided with a wire rod supply means for feeding a wire rod for binding to a guide groove.