JP2000316260A - Needle winding equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable high-speed winding by simplifying a needle drive mechanism. SOLUTION: In this needle winding equipment, a timing belt 24 is driven by a reciprocal drive motor 21 while a core 1 is pivoted at a prescribed angle in the arrow A direction with a rotation drive motor 11 via a speed reducer 12, a slide member 26 linking with the timing belt 24 is reciprocally driven together with a first needle holder 37a in the arrow B direction, and a needle 2 is made to draw a winding trace. A swing drive motor 31 is rotated synchronously with the winding trace, a swinging member 34 is driven in the arrow C direction via a ball screw 32, a needle holder 37 is swung by a specified length via a cam follower 36, by using a linkage plate 35 unified in a body with the swinging member 34, and alignment winding is performed over the whole region of a winding part of a core 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a needle winding apparatus for forming an aligned winding coil by directly winding a wire supplied from a needle around a stator or rotor core of a motor.

[0002]

2. Description of the Related Art Conventionally, as this kind of needle winding device, there is one as disclosed in, for example, JP-A-7-75298. This involves reciprocating the needle in an axial direction perpendicular to its axial direction, reciprocating the needle around the vertical axis by a predetermined angle near each stroke end, and further moving the needle in its axial direction via a cam mechanism. It is made to swing.

[0003] To this end, a first shaft having a needle implanted at one end and a wire inserted through a center hole, and a second shaft having the first shaft loosely fitted so as to be relatively non-rotatable and relatively movable only in the axial direction. A third shaft whose second shaft is rotatably supported so as to be relatively non-rotatable and relatively movable only in the axial direction, and whose outer peripheral surface is rotatably supported by the device fixing portion. Is reciprocated in the axial direction together with the first shaft via a slider, and in conjunction therewith, the third shaft is reciprocated around the axis by a predetermined angle by a rotating mechanism to rotate the needle around the winding portion of the core. I had to let it.

Further, in order to swing the needle in its axial direction, a traverse shaft provided on the same axis as the first shaft is rotated by a separate drive motor via a spline mechanism, and a shaft screwed to the upper end thereof. The first shaft, the lower end of which is relatively rotatably connected via the connecting member, moves in the axial direction,
The upper end portion swings the needle horizontally by a predetermined length via a bell crank, thereby enabling aligned winding along the longitudinal direction of the winding portion of the core.

[0005]

However, in such a conventional needle winding device, a driving motor for swinging the needle in the axial direction is required to reduce the weight of the reciprocating and rotating device. It has to be disposed at a fixed position outside the apparatus, such as via a spline mechanism. Therefore, the configuration of the needle driving unit for reciprocating and rotating the needle is complicated, which increases the production cost and limits the weight reduction. The present invention has been made in view of the above points, and has as its object to simplify the configuration and reduce the weight of the device.

[0006]

SUMMARY OF THE INVENTION To achieve the above object, the present invention provides a needle winding apparatus for forming an aligned winding coil by directly winding a wire from a needle around a core to be wound. First drive means for rotating, second drive means for reciprocating the needle in a direction perpendicular to the axis thereof, and third drive means for swinging the needle in the axis direction are provided independently of each other. And a needle winding device.

In the above-mentioned needle winding device, the first driving means includes a rotary drive motor, a speed reducer for reducing the rotation of the rotary drive motor, and a core holding member for transmitting the rotation of the speed reducer to the core. And consist of

The second drive means includes a reciprocating drive motor and a reciprocating motion driven by the reciprocating drive motor for a predetermined length in parallel with the axial direction of the core to move the needle in a direction perpendicular to the axial direction of the core. And a slide member slidably held.

Further, the third drive means comprises a swing drive motor, and a swing member driven by the swing drive motor to swing the needle by a predetermined length perpendicular to the axial direction of the core.

Furthermore, in these needle winding devices, it is preferable to provide a plurality of needles and to provide interlocking means for swinging the needles in the radial direction of the core. It may be a cam member that moves in the radial direction, or a cam member that rotates around the central axis of the core.

With the needle winding device according to the present invention configured as described above, the configuration of the needle driving section can be significantly simplified and lightened.
The inertia can be reduced, and a high-speed aligned winding can be realized. In addition, when a plurality of needles are provided in conjunction with each other, simultaneous alignment winding of a plurality of coils becomes possible.

[0012]

Embodiments of the present invention will be specifically described below with reference to the drawings. FIG. 1 is a front view of an embodiment in which the present invention is applied to a winding of an outer rotor core, and FIG. 2 is a plan view thereof. In FIG. 2, for the sake of simplicity and simplicity, only portions that can be fully understood from FIG. 1 are omitted.

As shown in FIG. 1, the needle winding device includes a first driving means 10 for reciprocatingly rotating a core 1 to be wound in a direction indicated by an arrow A, and a needle 2 perpendicular to its axis. A second driving means 20 for reciprocating in the direction of arrow B (vertical direction in the figure) and a third driving means for swinging the needle 2 in the direction of arrow C (horizontal direction in the figure), which is the axis direction thereof, by a predetermined length; 30.

The first drive means 10 is a rotary drive motor 11 for rotating the core 1, a speed reducer 12 for reducing the rotation thereof, and transmits the reciprocating rotation of the speed reducer 12 in the direction of arrow A to the core 1. And a core holding member 13.

The second drive means 20 includes a reciprocating drive motor 2
1, a driving pulley 22 attached to the rotating shaft of the reciprocating driving motor 21, a driven pulley 23 paired with the driving pulley 22, a timing belt 24 bridged between the driving pulley 22 and the driven pulley 23, The slide member 26 reciprocates in the direction of arrow B via a well-known linear guide mechanism 25 in conjunction with the movement of the slide 24.

The third drive means 30 has a swing drive motor 31, a ball screw 32 integrally fixed on the extension axis of the rotation shaft thereof, and a screw portion screwed to the ball screw 32. A swing member 34 driven in the direction of arrow C by the linear guide mechanism 33, a connecting plate 35 fixedly integrated with the swing member 34, and a cam follower 36 comprising a pair of rollers. Along with the movement in the direction C, it also moves with the movement of the slide member 26 in the direction indicated by the arrow B, and the first needle holder 37a having the needle 2 protruding at the distal end (left end in the figure) have.

As shown in FIG. 2, on the upper portion of the slide member 26, second and second needles 2 are provided at the distal ends thereof.
A third needle holder 37b, 37c is mounted via a rectilinear guide mechanism (not shown) so that its axis can be moved forward and backward toward the center of the core 1, and a T-shaped cam fixed to the first needle holder 37a. A member 38 is attached to each pair of rollers provided on the second and third needle holders 37b and 37c.
b, 39b, 39c, 39c,
Each needle 2 advances and retreats in the slot of the core 1 in the radial direction, and enables aligned winding. The first to third needle holders 37a to 37c are included in the needle holder 3
Seven.

With such a configuration, the wire 3 is connected to the first, second, and third needle holders 37a, 37b, 37, respectively.
c and each of the needles 2 can be inserted and supplied, the core 1 to be wound is mounted so as to be rotatable by a rotary drive motor 11 via a speed reducer 12, and a needle 2 is provided between the winding portions. Are inserted into the state shown in FIG.

The distal end of the wire 3 supplied from each needle 2 is gripped by a known gripper member (not shown), and a timing belt 24 is driven by a reciprocating drive motor 21.
Is driven by the rotary drive motor 11 to reciprocate the core 1 by a predetermined angle while the first needle holder 37a is reciprocally driven in the direction indicated by the arrow B in FIG. Trajectories for winding the three winding portions of the core 1 are drawn.

Further, the first needle holder 37a is oscillated in the direction of arrow C by the oscillating drive motor 31, and the second and third needle holders 37b and 37c are respectively connected to the core 1 via a cam member 38 integral therewith. By oscillating toward the center, the tip of each needle 2 can be oscillated in the radial direction of the core 1, and aligned winding is possible. At this time, the slide member 26 moves up and down with the first needle holder 37a, and the engaging portion between the cam follower 36 and the connecting plate 35 also moves. However, as shown in FIG. By setting, the first needle holder 37a can be reliably swung in the arrow C direction over the entire range of the vertical movement.

FIGS. 3 to 6 show another embodiment in which the present invention is applied to the winding of the inner rotor core. FIG. 3 is a front view thereof, and FIG. 5 is an enlarged view of a member showing a portion, FIG. 5 is a plan view thereof, and FIG. 6 is a partially enlarged view showing a main portion of FIG.

As shown in FIGS. 3 and 4, this needle winding device includes a first driving means 110 for reciprocatingly rotating a core 101 to be wound in a direction indicated by an arrow A, and an arrow 102 for a needle 102. A second drive means 120 for reciprocating in a direction B (vertical direction in the figure) and a third drive means 1 for swinging the needle 102 a predetermined length in a direction C (horizontal direction in the figure)
30 (see FIG. 5).

The first drive means 110 includes a rotary drive motor 111 for driving the core 101 to rotate, a speed reducer 112 for reducing the rotation thereof, and transmits the reciprocating rotation of the speed reducer 112 in the direction of arrow A to the core 101. And a core holding member 113.

The second driving means 120 includes a reciprocating driving motor 121, a driving pulley 122 attached to a rotating shaft of the reciprocating driving motor 121, and a driven pulley 12 paired with the driving pulley 122.
3, a timing belt 124 laid between the driving pulley 122 and the driven pulley 123, and a slide member 126 that reciprocates in the direction of arrow B via the linear guide mechanism 125 in conjunction with the movement of the timing belt 124. , And the slide member 126 is the arm 12 extending to the left in the figure.
6a, a wire guide 127 and a guide member 128 having a center hole 127a near the tip and coaxial with the core 101 (FIG. 3) are provided integrally.

As shown in FIGS. 5 and 6, the third driving means 130 includes a rocking drive motor 131, a ball screw 132 integrally fixed on an extension axis of its rotation shaft, and a ball screw 132. A swinging member 134 having a screw portion to be screwed and driven in a direction indicated by an arrow D by a linear guide mechanism 133.
A connecting plate 135 fixed integrally with the swinging member 134;
It has a cam follower 136 composed of a pair of rollers and a cam drive member 140 that moves together with the movement of the connecting plate 135 in the direction of arrow D (FIG. 5).

The cam driving member 140 has an interlocking roller 141
The interlocking roller 141 is engaged with a groove 138a of a circular cam member 138 rotatably provided on a wire guide 127, as shown in detail in FIG. By reciprocating, the cam member 138 swings in the direction of arrow E. The cam member 138 has three cam grooves 138b formed therein.
The rollers 139 respectively implanted in the three needle holders 137 which can be moved forward and backward in the diametric direction via the linear guide mechanisms 142 provided at intervals are engaged with the cam grooves 138b.

Near the lower end of each needle holder 137, as shown in FIGS. 3 and 4, needles 102 are projected in the radial direction.
The distal end of the wire 3 that has passed through 27a can be wound by passing through the needle 102. Then, the cam member 138 is rotated in the direction indicated by the arrow E during winding, and the needle holder 137 is rotated.
The alignment winding is made possible by moving the needle 102 forward and backward in the direction indicated by the arrow C through the arrow.

After the three wires 3 can be supplied from the three needles 102 through the center holes 127a of the wire guides 127 in such a configuration, the core 101 of the inner rotor to be wound is formed. Attached so as to be rotatable by a rotary drive motor 111 via a speed reducer 112
The state shown in FIG. 3 is set so that the needle 102 can be inserted between the winding portions.

The wire 3 supplied from each needle 102
Are gripped by gripper members (not shown), and the reciprocating drive motor 121 drives the timing belt 12.
4 while the needle 102 projecting from each of the needle holders 137 is reciprocated in the direction of arrow B via the slide member 126, while the core 1 is rotated by the rotary drive motor 111.
01 is reciprocally rotated by a predetermined angle so that each needle 2 draws a locus for winding on three winding portions of the core 1.

At the same time, the ball screw 132 is rotated by the swing drive motor 131, and each needle holder 137 is swung toward the center of the core 101 via the swing member 134, the cam drive member 140, and the cam member 138. By moving the needle, the tip of each needle 102 is moved in the radial direction to enable the aligned winding. At this time, the slide member 126 moves up and down with each needle holder 137,
The engaging portion between the cam follower 136 and the connecting plate 135 also moves. However, by setting the connecting plate 135 vertically long as shown in FIG. 3, it is possible to maintain the engagement between the two over the entire moving range. it can.

In each of the above embodiments, the rotation of the reciprocating drive motors 21 and 121 is controlled by the slide members 26 and 12.
In the case of converting to the linear motion of No. 6, the timing belt 2
When the rotation of the swing drive motors 31 and 131 is converted into the linear motion of the swing members 34 and 134, the ball screws 32 and 132 are used. Further, the same members may be used, and a combination thereof can be freely selected. In addition, cores 1, 10
Reduction gears 12, 112 inserted between the rotation drive motors 11, 111 for rotating the motor 1 and the core holding members 13, 113.
Can be omitted.

[0032]

As described above, the needle winding device according to the present invention has the first driving means for reciprocatingly rotating the core and the second driving means for reciprocating the needle in a direction perpendicular to the axis thereof. And third driving means for swinging the needle in the axial direction are provided independently of each other.
It is possible to simplify and reduce the weight of the needle drive unit and to achieve high-speed alignment winding with a reduction in inertia.

In the above-described needle winding device, the first drive means transmits the rotation of the rotary drive motor to the core via the speed reducer, and the second drive means controls the rotation of the reciprocating drive motor. If the needle is changed to reciprocating motion of the needle via the slide member and the third driving means is caused to swing the needle by a predetermined length by the rotation of the swing drive motor, the needle can be easily and reliably moved to the needle by a simple and reliable mechanism. The trajectory of the alignment winding can be drawn.

In these needle winding devices, a plurality of needles are provided and interlocking means for swinging the needles in the radial direction of the core is provided by a single swing drive motor. A plurality of needles can be oscillated at the same time, and a plurality of winding portions can be simultaneously aligned.

In such a needle winding device in which a plurality of needles are provided, if the interlocking means of the needles is a cam member which moves in the radial direction of the core, the needles can be moved by a very simple mechanism. When the driving becomes possible and the interlocking means of the needle is a cam member which rotates around the central axis of the core, the number of needles can be further increased, and the winding efficiency can be remarkably improved.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a front view showing another embodiment of the present invention.

FIG. 4 is a partially enlarged view showing only a main part of the same.

FIG. 5 is a plan view of the same.

FIG. 6 is a partially enlarged view showing only a main part thereof.

[Explanation of symbols]

1, 101: core 2, 102: needle 3: wire 10, 110: first drive means 11, 111: rotary drive motor 12, 112: reducer 13, 113: core holding member 20, 120: second drive Means 21, 121: Reciprocating drive motors 24, 124: Timing belts 25, 33, 43, 125, 133, 142: Linear guide mechanism 26, 126: Slide member 30, 130: Third drive means 31, 131: Swing Drive motors 32, 132: ball screws 34, 134: swinging members 35, 135: connecting plates 36, 136: cam followers 37, 137: needle holders 38, 138: cam members 127: wire guides 128: guide members 140: cam drive Element

Claims (7)

[Claims] 1. A needle winding device for forming an aligned winding coil by directly winding a wire from a needle on a core to be wound, a first driving unit for reciprocatingly rotating the core, and an axis of the needle. A needle winding device, wherein a second driving means for reciprocating in a direction orthogonal to the first direction and a third driving means for swinging the needle in the axial direction are provided independently of each other. 2. The first driving means includes: a rotary driving motor;
2. The needle winding device according to claim 1, further comprising a speed reducer that reduces the rotation of the rotation drive motor, and a core holding member that transmits the rotation of the speed reducer to a core. 3. A reciprocating drive motor comprising: a second drive means;
A sliding member driven by the reciprocating drive motor to reciprocate a predetermined length in parallel with the axial direction of the core and slidably holding the needle in a direction orthogonal to the axial direction of the core. Item 3. The needle winding device according to Item 1 or 2. 4. A third drive unit includes: a swing drive motor;
The needle winding device according to any one of claims 1 to 3, further comprising a swing member driven by the swing drive motor to swing the needle by a predetermined length orthogonal to the axial direction of the core. 5. The needle winding device according to claim 1, wherein a plurality of the needles are provided, and interlocking means for swinging the needles in a radial direction of the core is provided. A needle winding device characterized by the above-mentioned. 6. The needle winding device according to claim 5, wherein the interlocking means is a cam member that moves in a radial direction of the core. 7. The needle winding device according to claim 5, wherein the interlocking means is a cam member that rotates around a central axis of the core.