JPH0715925A - Armature winding machine - Google Patents

Abstract

PURPOSE:To prevent wire coating from being damaged by the rotation and vibration of an armature with a wire guide member fixed to a holding shaft when winding a wire on an armature core. CONSTITUTION:To wind a wore 10 on an iron core 4 of an armature 1 through a slot 16, when a flier 6 holding the wire 10 is turned round an axis L2 at the tip-side end of an holding shaft 27 or when the flier 6 turns and applies a turning force to make the holding shaft 27 accompany, the shaft 27 does not rotate, because the axis L1 of the shaft base 27b is bent by an angle of thetaagainst the other part 27d. Thus, a wire guide member 5 fixed to the shaft 27 does not vibrate in the rotation direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a winding device for an armature in which a wire is wound around an iron core of an armature whose shaft portion is held by a holding member and which is rotated by holding a wire (conductor wire).

[0002]

2. Description of the Related Art An armature used in an electric motor is an iron core formed by press-fitting each central hole of a circular thin steel plate in a state of being overlapped with each other around an axis, and the outer periphery of the iron core is circumferentially spaced at equal intervals. A coil is formed by winding a predetermined number of turns of each wire into a slot formed at a predetermined depth from the surface side.

The winding of the wire into each slot is performed by a winding device as shown in FIG. 2, for example. Note that, in FIG. 2, each part is shown in a simplified manner and a part thereof is shown in a sectional state in order to make the configuration easy to understand.

In this winding device, the wire guide member (chuck) 5 is provided on the outer peripheral surface of the iron core 4 of the armature 1 which is held substantially horizontally by the shaft 2 being fixedly held by the collet 3. The slot 16 (only part of which is shown in FIG. 4) is moved integrally with the flyer 6 and the like to a position for guiding the wire in the direction of arrow A so as to come into contact therewith.

The wire guide member 5 includes a holding shaft 7
Is fixed to the front end of the flyer 6, and its holding shaft 7 is rotatably fitted in the center hole of the columnar portion 8 of the flyer 6.
In the figure, the movement of the columnar portion 8 in the vertical direction is restricted by a washer, a nut, and the like.

A support member 9 is provided on the outside of the flyer 6, and the support member 9 is non-rotatably attached to a fixed portion of the apparatus, and can be moved back and forth only in the direction of arrow A and in the opposite direction. Has become. The columnar portion 8 of the flyer 6 is supported by its supporting member 9 so as to be rotatable about its axis.

The columnar portion 8 has a notch portion 8a formed in a part thereof along the axial direction. The guide rollers 11 and 12 for tensioning the wire 10 are rotatably attached to the notch portion 8a, and the upper arm portion is provided. Also the same guide rollers 13 and 1
4 is rotatably attached. Then, each of the guide rollers is housed in the wire supply source 15 and is taken out from the outlet 1.
The wires 10 of which one end side is pulled out from 17 are bridged as shown in the drawing.

In order to wind the wire 10 through the wire 10 into the slot 16 of the armature 1 using this winding device, the shaft 2 of the armature 1 is fixed and held substantially horizontally by the collet 3 as described above. , The wire guide member 5 to the iron core 4 of the armature 1.
The arcuate concave surface is pressed against the outer peripheral surface of the, or is moved to a position where a slight gap is formed therebetween.

In this state, the flyer 6 holds the holding shaft 7
The wire 10 held by the guide roller 13 on the tip side of the flyer 6 about the armature 1.
The wire 10 is wound around the iron core 4 by a predetermined number of turns by being swung while being inserted into the slot 16.

When the flyer 6 is turned to perform the winding operation, the wire guide member 5 is pressed against the iron core 4 of the armature 1 (in the case of double winding, the wire guide member 5 as shown in FIG. 2 is used). When the armature 1 is held from both sides because it is also on the upper side in the figure), even if the rotation of the flyer 6 causes a force to rotate the holding shaft 7 with it. Since the wire guide member 5 fixed to the holding shaft 7 is in pressure contact with the iron core 4 of the armature 1 which is fixed in a cantilever state by the collet 3,
The rotation in the accompanying direction is restricted, and only the flyer 6 turns around the holding shaft 7.

[0011]

However, in the winding device as shown in FIG. 2, the wire guide member 5 is attached to the armature 1.
When the winding operation is performed with a slight gap (non-contact state) provided between the iron core 4 and the iron core 4 without pressure contact, the flyer 6 rotates to maintain the accompanying rotation force that tends to rotate the flyer 6 in the same direction. Since the force acts on the shaft 7, the force is transmitted to the wire guide member 5 and the armature 1 vibrates in the rotation direction during the winding operation by the rotation of the flyer 6, disturbing the winding state of the winding, and covering the wire. When the portion rubs against another member, the coating of the wire may be partially peeled off to cause a short circuit between wires or the like.

Therefore, in order to prevent the wire guide member 5 from moving or vibrating together with the holding shaft 7 in the rotation direction even if the flyer 6 rotates, for example, as shown by an imaginary line in FIG. It is conceivable that the flyer 6 is fixed to the support member 9 which cannot be rotated with respect to the fixed portion of the device by the fixing plate 18 so that it cannot be rotated. When the wire 10 is rotated up to, the wire 10 immediately after being pulled out from the wire supply source 15 interferes with the fixed plate 18, so that the winding operation cannot be performed.

Therefore, since the holding shaft 7 has to be held in a free state in which the holding shaft 7 can rotate relative to the columnar portion 8 of the flyer 6, the force generated by the rotating action when the flyer 6 rotates as described above. Therefore, even if a force that vibrates in the rotation direction acts on the wire guide member 5 via the holding shaft 7, it is unavoidable.

The present invention has been made in view of the above problems, and prevents the holding shaft from rotating even when the flyer is turned around the holding shaft when the wire is wound around the iron core of the armature. Then, the wire guide member fixed to the holding shaft prevents the armature from rotating or vibrating to prevent the coating of the wire from being damaged or partially peeled off when the wire is wound.

[0015]

In order to achieve the above-mentioned object, the present invention provides a wire guide member for guiding a wire forming a coil around an iron core of an armature to guide the wire into a slot of the iron core, and an electric machine therefor. In a winding device of an armature, which comprises a flyer for winding a wire around the iron core of a child to wind the wire into the slot, and a drive means for rotating the flyer, the wire guide member holding shaft. While holding it to the tip of the holding shaft, bend the base end of the holding shaft so that the axis forms a predetermined angle with other parts, and rotate the flyer from the bent portion of the holding shaft to the tip side. And a rotary member having a wire insertion hole penetrating in the rotation axis direction at the base end of the holding shaft,
The rotating member and the flyer are rotatably held by a supporting member, a wire is guided from a wire supply source to a flyer through a wire insertion hole of the rotating member, and the flyer and the rotating member are rotated in conjunction with each other.

In the above armature winding device, the flyer and the rotating member may be connected to each other through a flexible torque transmitting member.

[0017]

In the winding device for an armature constructed as described above, the flyer in a state of holding the wire for winding the wire through the slot in the iron core of the armature is provided with an axis line closer to the tip end than the bent portion of the holding shaft. Even if the holding shaft is rotated about the center of the holding shaft, the base end of the holding shaft is bent so that the axis of the holding shaft forms a predetermined angle with other parts, and the holding shaft is rotatably mounted on the base end. Is rotatably held by the support member, so that even if a rotational force that causes the flyer to rotate with the flyer is applied by the rotation of the flyer, the rotation is restricted and the flyer does not rotate.

Therefore, since the wire guide member fixed to the holding shaft does not rotate when winding the wire around the iron core of the armature, the armature is rotated through the wire guide member or vibrated in the rotating direction. Since the winding does not occur, the winding can be reliably performed, and the coating of the wound wire is not rubbed by the vibration during the winding and partially peeled off.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be specifically described below with reference to the drawings. FIG. 1 is a block diagram showing an armature winding device according to an embodiment of the present invention in a sectional view.

This armature winding device has a slot 16 (only a part of which is shown) of the iron core 4 for winding a wire 10 forming a coil (winding) on the iron core 4 of the armature 1. A wire guide member 5 that guides the wire 10, a flyer 6 that holds the wire 10 around the iron core 4 of the armature 1 to wind the wire 10 into the slot 16, and a motor 20 that rotates the flyer 6. And timing pulleys 21 and 22, and a drive means including a timing belt 23 and the like stretched between the pulleys.

The wire guide member 5 is attached to the lower part 5 thereof.
A screw 24 inserted in a hole formed in the radial direction of a is screwed into a screw hole formed in the tip end portion 27 a of the holding shaft 27 to be integrally fixed to the holding shaft 27. The wire guide member 5 is formed with an arcuate concave surface portion 5b on the armature 1 side (upper surface side in FIG. 1) corresponding to the outer peripheral surface of the iron core 4 of the armature 1, and the concave surface portion 5b of the iron core 4 is formed. The outer peripheral surface can be infinitely close to the outer peripheral surface with a slight gap (a minute gap that prevents the wire 10 from falling into the gap) between them.

The wire guide member 5 may have its concave surface portion 5b in contact with the outer peripheral surface of the iron core 4 or may be provided with a pair to hold the armature 1 from both sides. Also works as. In the armature 1, the wire 10 is wound around the iron core 4 with the shaft portion 2 being cantilevered by the collet 3.

The collet 3 is a known one, so a detailed description thereof will be omitted. However, the collet 3 is a gripping device composed of a plurality of cylindrical members having different diameters, and up to the commutator portion of the armature 1. It is inserted into a cylindrical member, and the commutator side shaft end of the armature 1 is fixedly held by the innermost cylindrical member.

The holding shaft 27 has a base end portion 27b, which is a lower portion in FIG. 1, and an axis L1 of that portion forms a predetermined angle θ (which can be set to an arbitrary value) with respect to an axis L2 of another portion 27d. And the columnar portion 8 of the flyer 6 on the distal end side of the bent portion 27c of the holding shaft 27.
Is rotatably mounted by a ball bearing 28 and a metal bearing 29.

Further, the base end portion 27 of the holding shaft 27
A rotating member 25 having a wire insertion hole 25a penetrating in the direction of the rotation axis is rotatably mounted on a ball bearing 31 and the rotating member 25 is attached to the ball bearing 32.
The support member 26 is rotatably held by the
The columnar portion 8 of the flyer 6 is rotatably held by an upper support member 35 integral with the support member 26 by ball bearings 33 and 34.

The lower end of the flyer 6 has a smaller diameter than the upper part, and a timing pulley 22 is integrally fixed to that portion, and the timing pulley 22 and the timing pulley 21 fixed to the rotary shaft of the motor 20. A timing belt 23 is stretched between and. In addition, the flyer 6
A notch portion 8a is formed in a part of the columnar portion 8 along the axial direction, and a guide roller 37 is rotatably supported by the notch portion 8a.

Further, guide rollers 38 and 39 are rotatably supported by the arm portion of the flyer 6 to rotatably support the wire 10 as a wire supply source (not shown in FIG. 1, so refer to the wire supply source 15 in FIG. 2). ) To the guide roller 43,
44 through the wire insertion hole 25a of the rotating member 25, and the timing pulley 22 through the wire insertion hole 25a.
Through the wire insertion hole 22a formed corresponding to the above, it is led around to the upper end of the flyer 6 by being wrapped around each guide roller 37, 38 and 39.

The timing pulley 22 is a flexible rotational force transmission member (coupling) formed of a winding spring.
Since the timing pulley 22 is connected to the rotary member 25 via 41 and is integrally fixed to the columnar portion 8 of the flyer 6 as described above, the rotary member 25 and the flyer 6 rotate in conjunction with each other.

Since the rotational force transmitting member 41 is formed of a flexible winding spring, it has the holding shaft 27.
Even if the axes L1 and L2 of the base end portion 27b and the other portion 27d of the shaft are bent at an angle θ, the rotary member 25 and the flyer fitted in the base end portion 27b and the other portion 27d, respectively. 6 and the timing pulley 22 rotate together without any trouble.

Incidentally, the support member 26 and the upper support member 35.
Is attached to a fixed part of a device (not shown) so as to be movable back and forth only in the direction of arrow B in FIG. 1, so that it cannot rotate about the holding shaft 27.

In order to wind the wire 10 into the slot 16 through the iron core 4 of the armature 1 using this winding device, the shaft 2 of the armature 1 is fixedly held by the collet 3 in a substantially horizontal state, and the electric machine The arc-shaped concave surface portion 5b of the wire guide member 5 on the outer peripheral surface of the iron core 4 of the child 1 has a very small gap with the outer peripheral surface of the iron core 4 (to the extent that the wire does not fall into the gap).
Close until you can.

In this state, the flyer 6 holds the holding shaft 2
7, the wire 10 held by the guide roller 39 on the tip side of the flyer 6 is inserted into the slot 16 of the armature 1, and the wire 10 is attached to the iron core 4.
Is wound a predetermined number of times, and each time the winding into one slot is completed, the collet 3 is index-rotated by one slot, and the same winding is sequentially performed, and the wire is wound around all the slots 16.

By the way, in the case of a winding device having a flyer that rotates around the holding shaft while keeping the wire always held around the holding shaft, as shown in FIG. The flyer had to be held in a free state so that it could rotate relative to the columnar part (the flyer was on the rotating side), and it could not be fixed to a non-rotatable support member of the device (interference with the wire). Will occur).

Therefore, in the conventional winding device, when the flyer rotates, a rotating force of the flyer due to the rotation of the flyer acts on the holding shaft, and the force causes the wire guide member to give a rotating force to the armature. There is a problem in that the winding state of the winding is disturbed by vibrating it in the rotating direction, or the coating is partially peeled off by rubbing the coated portion of the wire with another member.

However, in this embodiment, the wire 1
Hold the flyer 6 in the state of holding 0
Axial line L2 of the tip portion 27a side from the bent portion 27c of 7
Even when the holding shaft 27 is rotated about the axis, the base end 27b of the holding shaft 27 is bent at a predetermined angle θ with respect to the other portion 27d. A rotary member 25 having two different axial centers and rotatably mounted on the base end portion 27b of the shaft is rotatably held by the support member 26 in the posture shown in FIG. Therefore, even if the rotating force of the flyer 6 that causes the holding shaft 27 to rotate with the flyer 6 acts, the flyer 6 does not rotate because the rotation is restricted.

Therefore, when the wire 10 is wound around the iron core 4 of the armature 1, the armature 1 is not rotated through the wire guide member 5 or vibrated in the rotation direction, so that a reliable winding can be performed. In addition, the coating of the wound wire 10 is not rubbed by the vibration during the winding and partially peeled off.

The armature winding device according to the present invention has been described above by taking the case of a winding device of a type in which a wire is wound around the iron core of the armature by a single winding, but the present invention is shown in FIG. If another winding device is arranged in the target positional relationship with the armature 1 on the upper side in the figure, a double winding type winding device is obtained, and the same applies to such a winding device. can do.

[0038]

As described above, according to the armature winding device of the present invention, the wire guide member does not rotate together with the holding shaft even when the flyer is swung when the armature is wound around the iron core. When the wire is wound on the armature core, the armature is not rotated through the wire guide member or vibrated in the rotating direction, so that a reliable winding can be performed and the winding wire can be coated There is no damage or rubbing that may cause partial peeling.

Since the wire guide member does not rotate,
Since it can be used in non-contact with the armature core during winding operation, if it is used in this way, one slot of the core will be wound with a predetermined number of turns of wire and The workability is improved because it is not necessary to release the pressure contact or the pinching of the wire guide member with respect to the iron core each time the slot is index-rotated.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing a winding device of an armature showing an embodiment of the present invention in a sectional state.

FIG. 2 is a schematic diagram showing an example of a conventional armature winding device.

[Explanation of symbols]

 1 Armature 4 Iron core 5 Wire guide member (chuck) 6 Flyer 10 Wire 16 Slot 20 Motor 21, 22 Timing pulley 22a, 25a Wire insertion hole 23 Timing belt 25 Rotating member 26 Supporting member 27 Holding shaft 27a Tip part 27b Base end part 27c Bent portion 27d Other portion 41 Rotational force transmission member

Claims (2)

[Claims] 1. A wire guide member for guiding the wire into a slot of the armature for winding a wire forming a coil on the armature core, and a wire holding member that pivots around the armature core of the armature. In a winding device for an armature including a flyer that winds a wire into the slot, and a drive unit that rotates the flyer, the wire guide member is fixed to the distal end portion of the holding shaft, and the base of the holding shaft is fixed. The end portion is bent so that the axis line forms a predetermined angle with respect to the other portion, and the flyer is rotatably attached to the tip end side from the bent portion of the holding shaft, and the holding shaft is A rotating member having a wire insertion hole penetrating in the direction of the rotation axis is rotatably attached to the base end portion, and the rotating member and the flyer are rotatable on a supporting member, respectively. Is held, the wire guidance from the wire supply to the flyer through the wire insertion hole of the rotary member, and the winding device of the armature, characterized in that so as to interlock the rotation of said rotary member and said flyer. 2. The armature winding device according to claim 1, wherein the flyer and the rotating member are connected to each other via a rotational force transmitting member having flexibility. .