JPH0819228A - Wire winder - Google Patents

Abstract

PURPOSE:To improve winding precision of a winder which winds a magnet wire on the pole core, etc., of a motor core with a magnet wire nozzle made to rotate by a flier and facilitate a close winding with adjacent wires tightly without a gap by a method wherein the magnet wire nozzle is inserted into deep inside the pole core directly. CONSTITUTION:A nozzle holder 12 having a magnet wire nozzle 11 is attached to a flier 2 with a linear bearing 13 so as to slide freely. A sliding member 30 is attached to the tip of an inner shaft 19 which can slide in a rotary shaft direction and linked with the nozzle holder 12 through a linking member 31. If the inner shaft 19 (sliding member 30) is moved back and forth reciprocally while the flier 2 is made to rotate, the nozzle holder 12 is made to swing through the linking member 31 by the guide of the linear bearing 13. Then the nozzle holder 11 is transferred along an inclined trace which comes closer to a pole core (a) along with coming deeper inside in the axial direction of the pole core (a) and a close winding is performed by closing and opening its rotation mode.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a winding machine for winding a wire for coil formation around a motor core.

[0002]

2. Description of the Related Art Conventionally, a winding machine has been widely used to wind a wire material W for forming a coil around each pole portion a of a motor core C as shown in FIG. In recent years, motors have become thinner, especially in motors such as floppy disks, hard disks, videos, and fans. However, in order to achieve motor thinning without degrading the characteristics of the motor, the motor core C On the other hand, the winding machine is required to have a thin and compact winding portion without reducing the number of turns. For that purpose, so-called aligned winding is effective, in which adjacent wire rods are wound around the core pole portion a without any gap.

By the way, a general winding machine is of a flyer type as shown in FIG. 13, and has a rectangular block-shaped main former 10 with respect to a motor core C whose position is fixed.
2 and the left and right side formers 103 are arranged,
By rotating the flyer 100 holding the winding nozzle 101, the wire W drawn from the winding nozzle 101 is wound around the core pole portion a. However, conventionally, it has been difficult to perform the aligned winding with such a flyer type winding machine.

This is mainly due to the following reasons. FIG.
In the above, while the winding nozzle 101 is rotated by the flyer 100, the main former 102 is sent in the depth direction of the core pole portion a and is oscillated a proper number of times. Since it interferes with the adjacent core pole a, the main former 102
Cannot be pushed all the way to the back. This is an obstacle to improving the winding accuracy of the wire W, and it is the actual situation that the winding cannot be aligned.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to realize aligned winding by a flyer type winding machine that rotates a winding nozzle.

[0006]

The winding machine according to the present invention comprises:
A wire rod is wound around the work core portion and includes a winding nozzle, a flyer, a nozzle holder coupled to the winding nozzle, a nozzle guide portion, a slide member, and a connecting member.

The flyer holds the winding nozzle together with the nozzle holder at a position deviated from the center of rotation by a certain distance and rotates to perform a winding operation on the work core. The nozzle guide portion is provided at the tip of the flyer, and guides the winding nozzle via the nozzle holder so as to be slidable along a slanted path that approaches the work core toward the inner side of the work core. The slide member is provided slidably along the rotation center line of the flyer and rotatable integrally with the flyer, and is connected to the nozzle holder by a connecting member. As a result, the nozzle holder is slid by the nozzle guide portion along the inclined locus along with the movement of the slide member along the rotation center line.

The winding machine having the above-described structure is fitted in a hollow outer shaft integrally provided in the center of the flyer and in a state where only the axial movement of the hollow outer shaft is allowed. An inner shaft, a rotary drive unit that is connected to the outer shaft and rotates the flyer and the inner shaft via the outer shaft, and a slide drive unit that is connected to the inner shaft and slides the inner shaft in the outer shaft. It can be In this case, the slide member is integrally provided at the tip of the inner shaft.

Further, the nozzle guide portion is a rail portion provided at the tip of the flyer corresponding to the inclined locus,
The nozzle holder can be configured as a member that slides on this rail.

[0010]

In the winding machine according to the present invention, the winding nozzle which is responsible for the winding operation is slanted so as to approach the core of the workpiece as it goes deeper.
The winding nozzle can be directly inserted deep into the core core. As a result, the wire rod can be accurately wound around the core portion not only on the front end side of the work core portion but also on the back side thereof. As a result, the winding accuracy is improved and so-called aligned winding is possible. The winding nozzle is held by a nozzle holder provided at the tip of the flyer, and the nozzle holder slides along the rotation center line of the flyer in a feed direction of the winding nozzle via a connecting member. Slide along. This allows
When the winding nozzle is swung with respect to the core as the winding is performed, it is not necessary to move the entire flyer to which the winding nozzle is attached, and it is sufficient to slide the nozzle holder relative to the flyer. Therefore, the mechanism is simple and the entire device can be made lightweight and compact.

Further, by making the nozzle guide part a rail and making the nozzle holder a member that slides on this rail, the sliding movement of the nozzle holder with respect to the flyer (that is, the swinging of the winding nozzle) can be carried out smoothly. .

[0012]

Next, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 shows a main part of a winding machine according to the present invention.
In this winding machine M, two winding machine main bodies 1 that have the same structure and interlock with each other are arranged in parallel, and each of the motor cores (hereinafter simply referred to as cores) C as shown in FIG.
The winding process is performed for each of the radial pole portions a as the work core portion. Although not shown, the core C is held by the core holding means, and is intermittently rotated and fed every time the winding operation for one pole portion a is completed, and the winding is performed for all the pole portions a. Hereinafter, the configuration of only one of the main bodies 1 will be described unless particularly necessary.

As shown in FIG. 1, the flyer 2 of the winding machine body 1 is integrally formed with a cylindrical outer shaft 4 so as to form a rotation center line X.
The flyer boss 5 fixed to the outer shaft 4 from the outside, the long-plate flyer blade 6 having one end fixed to its outer peripheral surface, and the flyer boss 6 provided on the opposite side of the flyer boss 5 for dynamic balance. A balance weight 52 and the like for taking are included. As shown in FIG. 2, the end portion of the outer shaft 4 is inserted into the shaft hole 7 formed in the flyer boss 5,
As shown in FIG. 5, the recess 5 penetrating the side surface of the flyer boss 5
The fastening member 8 fitted in a is fixed to the flyer boss 5 by fastening it with bolts 9. As shown in FIG. 2, one end of the flyer blade 6 is a flyer boss 5.
1 is fixed to the outer surface of the core using bolts 10 and pins 60, and the other end extends along the rotation center line X to the vicinity of the core C as shown in FIG. Is inclined to approach.

As shown in FIG. 4, at the tip 6a of the flyer blade 6, a nozzle holder 12 having a winding nozzle 11 at its tip is supported by a linear bearing 13 so as to be slidable along its inclination direction. Has been done. As shown in FIG. 5, the nozzle holder 12 has a recess 12a in the middle and a wire rod guide hole 12c in which a guide ring 12d made of cemented carbide, ceramics or the like is fitted is provided on the rear side. The wire W is supplied to the winding nozzle 11 through the guide hole 12c. The wire W is exposed in the recess 12a. This recess 12a facilitates the wire W to pass through the guide hole 12c and the winding nozzle 11 when the wire W is set in the nozzle holder 12, and also in the holder 12. When the wire rod W is clogged, it plays a role such as simplifying the removal of the plugged wire rod W.

Next, as shown in FIGS. 4 to 6, the linear bearing 13 has a rail 15 as a nozzle guide portion fixed to the flyer blade 6 with bolts 14, and a nozzle holder 12 with bolts 12b on the upper surface. And the like, and is configured by a moving body 16 that slides on the rail 15 by being attached. Further, as shown in FIG. 7, the bolt hole 15a of the rail 15 has a gap 15b between the bolt 15 and the bolt 14, and within a range allowed by the gap 15b, the flyer blade 6 (the tip portion 6a) is removed. The mounting position and angle of the rail 15 can be adjusted. The nozzle holder 12 may be directly slidably provided on the rail 15.

Next, as shown in FIG. 8, the outer shaft 4
Is supported by a support frame 51 via bearings 52 to 54, and the timing pulley 17 and the timing belt 18 are driven by a rotation motor 3 as a rotation driving unit.
It is driven to rotate via. On the other hand, a hollow inner shaft 19 is concentrically arranged inside the outer shaft 4 so as to be rotatable integrally with the outer shaft 4 via a spline nut 20, and the outer shaft 4 is rotated along the rotation center line X thereof. It is slidable relative to the shaft 4. Further, 21 is a bush for assisting the sliding of the inner shaft 19 with respect to the outer shaft 4. As shown in the plan view of FIG. 9, two winding machine bodies 1 arranged in parallel are provided.
The inner shafts 19 are connected to each other by a connecting bar 23 while being allowed to rotate about the axis by a bearing 22 (FIG. 8). And this connecting bar 23
A ball screw mechanism 26 (ball screw 24, ball screw nut 25) connected to the motor is driven via a timing pulley 27 and a timing belt 28 by a single feed motor 29 (slide driving unit, FIG. 10) that rotates in the forward and reverse directions. By doing so, the two inner shafts 19 slide together. In addition, the rotation motor 3 is used for each main body 1
On the other hand, two units are provided, one for each unit, but one unit may be used for both.

As shown in FIG. 1, a slide member 30 is provided outside the tip of the inner shaft 19, and the tip of the slide member 30 is connected to the nozzle holder 12 via a connecting member 31. The slide member 30 is rotatable integrally with the inner shaft 19 at the tip of the inner shaft 19 at the connecting portion 30a formed in a cylindrical shape by bolting from the outside, and is slidable along the rotation center line X thereof. Shaft 19
It is fixed so that it can slide. On the other hand, as shown in FIG. 4, the connecting member 31 includes a slide pin 33 that is vertically slidably inserted into a linear bush 32 provided on the slide member 30, a fixing fitting 34 that is fixed to the lower surface of the nozzle holder 12, It is composed of a connecting fitting 35 or the like for connecting the both. The connecting fitting 35 is attached to the fixing fitting 34 by a pin 35a so that the slide pin 33
Are fastened to each other by nuts 35b. Then, as shown in FIG. 1, the wire W is the inner shaft 1
9 through the slit 36 provided in the slide member 30, the wire guide 55, the nozzle holder 12, and the winding nozzle 11.

Here, the connecting member 31 is the nozzle holder 12
It may be fixed to the moving body 16 without being fixed to. Further, the slide pin 33, the fixing fitting 34, the connecting fitting 35, etc. of the connecting member 31 can be integrally configured. Further, the slide member 30 may be omitted and the connecting member 31 may be directly connected to the tip of the inner shaft 19.

In the winding machine M as described above, the winding nozzle 11 and the nozzle holder 12 are brought close to the core pole portion a of the core C shown in FIG. 12, and in that state, the rotation motor 3 shown in FIG.
When the inner shaft 19 (slide member 30) is reciprocally moved back and forth while the flyer 2 is rotated by driving the feed motor 29, the nozzle holder 12 is guided by the linear bearing 13 via the connecting member 31 and swings. Move. As a result, as shown in FIG.
In the gap (valley portion) between the adjacent core poles a, the nozzle 11 is pulled out while swinging along a trajectory inclined with respect to the depth direction of the core pole a to be wound. The wire W is wound around the core pole a.

The inclination locus is given by, for example, a straight line passing through the center O of the core C and inclined by an angle θ with respect to the axis of the core pole portion a. Therefore, the winding nozzle 11 has a core pole portion a.
The closer to the inner part of the core pole a, the closer to the pole part a, so that the winding operation can be performed by entering the deepest part of the core pole part a while avoiding interference with the adjacent core pole part a. Then, per one rotation of the winding nozzle 11, a swing feed corresponding to one wire diameter of the wire W is given, and the winding nozzle 11 expands / reduces the radius of rotation according to the swing, so to speak, opens. Winding while closing or closing. As a result, aligned winding is performed over the entire core pole portion a in the depth direction.

The swinging motion of the winding nozzle 11 is brought about by the linear swinging motion of the nozzle holder 12 along the linear bearing 13, and the flyer 2 does not perform the sliding motion along the rotation center line X. Therefore, the mechanism for swinging the winding nozzle 11 is simple and lightweight,
The entire device is compact.

Here, the inclination locus of the winding nozzle 11 has an optimum inclination angle θ for implementing the winding, depending on, for example, the size of the core C, the interval and height of the pole portions a, and the like. It is necessary to adjust, but for this adjustment, the bolt 14 that attaches the rail 15 of the linear bearing 13 to the tip 6a of the flyer 6 is loosened, and the bolt 14 and the bolt hole 15 are adjusted.
It is performed by adjusting the angle of the rail 15 with respect to the tip 6a within a range allowed by the gap 15b (FIG. 7) between the rail 15a and a. After the adjustment of the angle is completed, the bolt 14 is tightened again to fix the rail 15 to the tip portion 6a.

Although the above winding machine M has two winding machine main bodies 1 which are interlocked with each other in parallel, it is of course possible to construct the winding machine M with only one main body 1. In this case, the inner shaft 19 is slid by the feed motor 29 via the ball screw mechanism 26 provided directly on the inner shaft 19. It is also possible to interlock three or more winding machine bodies.

[Brief description of drawings]

FIG. 1 is a side view showing an example of a winding machine of the present invention.

FIG. 2 is a side view of a flyer boss.

FIG. 3 is a front view of FIG.

FIG. 4 is an enlarged view of the vicinity of the nozzle holder in FIG.

5 is a plan view of FIG.

6 is a front view of FIG.

7 is a cross-sectional view taken along the line AA of FIG.

8 is a cross-sectional view of a driving unit of the apparatus shown in FIG.

9 is a plan view of FIG.

FIG. 10 is a side view showing a slide driving portion of the inner shaft.

11 is an explanatory view of a winding process by the apparatus of FIG.

FIG. 12 is a general conceptual diagram of windings on a motor core.

FIG. 13 is an operation explanatory view of a conventional winding machine.

[Explanation of symbols]

 M Winding machine 1 Winding machine main body 2 Flyer 3 Rotation motor (rotation drive part) 4 Outer shaft 11 Winding nozzle 12 Nozzle holder 13 Linear bearing 15 Rail (nozzle guide part) 19 Inner shaft 29 Feed motor (slide drive) Part) 30 slide member 31 connecting member W wire

Claims (3)

[Claims] 1. A winding machine for winding a wire around a work core, wherein a winding nozzle positioned at a certain distance from a rotation center line is held and rotated to wind the work core. A flyer that operates, a nozzle holder that is coupled to the winding nozzle, and a wire holder that is provided at the tip of the flyer and that moves the winding nozzle through the nozzle holder toward the back of the workpiece core. A nozzle guide part that slidably guides along a slanted path approaching to, a slide member that is slidable along a rotation center line of the flyer and is rotatable integrally with the flyer, and the slide thereof. A member and the nozzle holder, and the nozzle holder tilts the nozzle holder with the movement of the slide member along the rotation center line. Winding machine, characterized in that it comprises a connecting member for sliding, the along the trajectory. 2. A hollow outer shaft integrally provided in a central portion of the flyer, and an inner shaft fitted in the outer shaft in a state where only movement in the axial direction is permitted, A rotary drive unit connected to an outer shaft for rotating the flyer and the inner shaft via the outer shaft; and a slide drive unit connected to the inner shaft for sliding the inner shaft in the outer shaft, The winding machine according to claim 1, wherein the slide member is integrally provided at a tip portion of the inner shaft. 3. The nozzle guide portion is a rail portion provided at the tip of the flyer corresponding to the inclined locus, and the nozzle holder is a member that slides on the rail. The winding machine described.