JP2943345B2 - Winding machine - Google Patents

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 forming a coil, and more particularly to a winding machine in which a wire having an outer surface covered with an insulating coating is wound around a winding frame to form a coil. About the machine.

[0002]

2. Description of the Related Art In a flat brushless motor, for example, a wiring pattern is formed on an insulating substrate, a coil is mounted on the substrate, and the coil is opposed to a magnet on the rotor side via an air gap. I have. The coil is formed by a method such as winding a foil wire with an insulating coating, and the insulating coating is peeled off at a predetermined position, and the peeled portion is soldered to a wiring pattern on a circuit board. Connected.

[0003]

As described above, the coil of the brushless motor is connected to the wiring pattern on the insulating substrate by soldering, and power is supplied through the wiring pattern. Therefore, if the position of the stripped portion of the foil wire constituting the coil is not correct, it cannot be correctly soldered to the wiring pattern on the circuit board. Since the thickness or diameter of the wire has a tolerance and the outer diameter of the coil is also affected, even if the peeled portion is formed at the correct position on the wire supply side, the peeled portion is formed at the correct position on the outer periphery of the coil. May be shifted without being formed.

[0004] The present invention has been made in view of the above problems, and has as its object to provide a coil winding machine in which a peeling position for connection is formed correctly. is there.

[0005]

SUMMARY OF THE INVENTION The present invention relates to a winding machine in which a wire whose outer surface is covered with an insulating coating is wound around a winding frame to form a coil. Measuring means for measuring the amount of the wire rod, a peeling means for peeling off the insulating coating of the wire, and a moving means for adjusting the peeling position by moving the peeling means or the bobbin. is there.

[0006]

Accordingly, the amount of the wire wound on the bobbin is measured by the measuring device, and the peeling device or the bobbin is moved by the moving device in accordance with the measurement. Therefore, the insulating coating at a position corresponding to the amount of the wire is peeled off by the peeling means.

[0007]

FIG. 2 shows the overall construction of a winding machine according to one embodiment of the present invention. A foil wire supply reel 11 is arranged on the gantry 10. The foil wire 12 is supplied by the reel 11. Foil wire 12 drawn from reel 11
Is guided by a guide roll 14 on the base 13. A tensioner unit 15 is provided adjacent to the base 13, and an appropriate tension is applied to the foil wire 12 by the tensioner unit 15.

[0008] A peeling unit 18 is arranged on the side of the tensioner unit 15. A wire drawing unit 19 is provided adjacent to the peeling unit 18, and a spindle unit 20 is arranged so as to face the drawing unit 19. A hot air nozzle 21 is disposed diagonally above the wire routing unit 19.

A check unloading unit 22 is arranged on the side of the routing unit 19, and a coil aligning stacker unit 23 is provided downstream of the check unloading unit 22. On the back side of the check-out unit 22, an operation panel 24 is attached to the side.

FIG. 1 shows a peeling unit 1 of such a winding machine.
8 is an enlarged view of a portion 8, and the peeling unit 18 includes a moving block 27. Moving block 2
A grindstone roll 28 constituting a peeling means is disposed on the surface 7. Further, on the moving block 27, a pressing roll 2 is provided.
9 and a guide roll 30 are attached.

The moving block 27 is moved left and right in FIG. 1 by a ball screw 31. Both ends of the ball screw 31 are rotatably supported by bearings 32 and 33. A pulley 34 is fixed to the tip end of the ball screw 31.
Is transmitted to a pulley 36 via a belt 35. The pulley 36 is fixed to the output shaft of the motor 37. The motor 37 is supported on a base 38.

A wire drawing unit 19 is disposed diagonally below the peeling unit 18. The unit 19 includes a spindle 41, and the coil 42 is formed by winding the foil wire 12 on the spindle 41. The foil wire 11 is guided by a guide roll 43. Moreover, the guide roll 4
A pair of felt pads 44 and 45 are arranged on the upstream side of 3 to clean the foil wire 12 from which the insulating coating has been peeled off by the pads 44 and 45.

A length measuring sensor 48 is disposed obliquely below the spindle 41 and is fixed to the tip of an air cylinder 49. The piston rod 50 of the air cylinder 49 is fixed to the base 51. A dock 52 is fixed on the base 51, and the dock 52 is detected by a probe 54 of a digital scale 53.

Further, the digital scale 53 is inputted to a controller 57 composed of a computer, and the controller 57 controls the stepping motor 37.

In the above configuration, the foil wire 12 supplied from the wire supply reel 11 is guided by a guide roll 14 on a base 13 and a tensioner unit 15 is provided.
With the appropriate tension applied, the wire reaches the wire rod drawing unit 19 through the peeling unit 18 and is wound around the spindle 41 to form the coil 42. This coil has a substantially triangular shape as shown in FIG.

Such a coil is mounted on a circuit board 62 as shown in FIG. On the inner peripheral side and outer peripheral side of the coil 42, the insulating coating 60 of the foil wire 12 is peeled off to form a peeled portion 61, and the peeled portion 61 is formed on the wiring pattern 63 of the circuit board 62. Are connected by a solder 64.

The peeling portion 61 is provided for the peeling unit 18 of the winding machine.
Is formed by the grindstone roll 28. If the peeled portion 61 is displaced in the circumferential direction of the coil 42, it does not correctly correspond to the wiring pattern 63 of the circuit board 62, and there is a possibility that electrical connection may not be made.

Therefore, in this winding machine, as shown in FIGS. 1 and 6, the position of the peeling unit 18 is adjusted by the controller 57 to perform a correcting operation.

The length measuring sensor 48 measures the thickness or outer diameter of the coil 42 wound around the spindle 41. This measurement is performed by extending or contracting the air cylinder 49 in which the rod 50 is fixed to the base 51, and measuring the distance between the rod 42 and the length measuring sensor 48. When the length measuring sensor 48 moves together with the air cylinder 49, the digital scale 53 also moves accordingly. Therefore, the probe 5 of this scale 53
4 detects the thickness or diameter of the coil 42 by detecting the distance between the base 51 and the dock 52.

The output of the digital scale 53 is input to a computer 57,
7 performs an arithmetic operation according to the measured value as shown in FIG. The stepping motor 37 is operated in accordance with the operation.
Is driven to rotate. The rotation of the stepping motor 37 is transmitted to the ball screw 31 via the pulley 36, the belt 35, and the pulley 34, whereby the moving block 27 is moved right and left in FIG. Therefore, the grindstone roll 28 on the block 27 also moves, whereby the peeling position at which the grindstone roll 28 is peeled is adjusted.

Therefore, as shown in FIG. 4, such a coil 42 can correctly regulate not only the peeling position 61 on the inner peripheral side but also the peeling position 61 on the outer peripheral side. This means that when mounted on the circuit board 62 as shown in FIG. 5, the inner and outer peeling positions 61 correctly correspond to the corresponding wiring patterns 63, respectively. Therefore, the peeled portion 61 is correctly connected to the wiring pattern 63 of the circuit board 62 via the solder 64 by the solder dipping process. Therefore, it is possible to provide a flat type brushless motor that operates normally without causing a connection failure.

As described above, in the winding machine according to the present embodiment, the predetermined portion of the insulating coating 60 of the foil wire 12 is peeled off and the peeled portion 6 is removed.
In the winding machine for producing the coil 42 provided with the electrical contacts by forming the coil 1, the thickness of the coil 42 is measured in the middle of the winding, and the peeling position 61 is adjusted accordingly. It relates to wire machines.

Therefore, regardless of the influence of the variation of the outer diameter of the coil 42 due to the winding machine, the position 6 where the insulating coating 60 is removed
1 will be stabilized. Conventionally, the insulation layer covering position was manually corrected for each wire rod lot.
Can be adjusted.

[0024]

Although the present invention has been described with reference to one embodiment shown in the drawings, the present invention is not limited to the above-described embodiment.
Various modifications are possible based on the technical concept of the present invention.
For example, the above embodiment relates to a winding machine using the foil wire 12, but the present invention is applicable to a winding machine that forms a coil by using wires having various cross-sectional shapes.

In the above embodiment, the peeling unit 18 is moved by the ball screw 31 in order to adjust the peeling position. However, the peeling unit 18 is fixed and the spindle 41 is moved with respect to the peeling unit 18. You may do so.

[0026]

As described above, according to the present invention, the amount of the wire wound around the bobbin is measured by the measuring means, and the peeling position is adjusted by moving the peeling means or the bobbin in accordance with the measurement. It is like that. Therefore, the peeling position of the coil is stabilized, and the peeled portion is always formed at the correct position.

[Brief description of the drawings]

FIG. 1 is a front view of a part of a peeling unit of a winding machine.

FIG. 2 is an external perspective view showing the entire structure of the winding machine.

FIG. 3 is a front view of a measuring mechanism for measuring a diameter of a coil.

FIG. 4 is an external perspective view of a wound coil.

FIG. 5 is a longitudinal sectional view of a coil mounted on a circuit board.

FIG. 6 is a flowchart illustrating an operation of adjusting a peeling position.

[Explanation of symbols]

 12 Foil wire 18 Peeling unit 27 Moving block 28 Wheel roll 31 Ball screw 37 Motor 41 Spindle 42 Coil 48 Sensor for length measurement 49 Air cylinder 53 Digital scale 57 Controller 60 Insulating coating 61 Peeling part

Claims (1)

(57) [Claims] In a winding machine in which a wire whose outer surface is covered with an insulating coating is wound around a winding frame to form a coil, a measurement for measuring an amount of the wire wound around the winding frame. A winding machine comprising: a unit; a peeling unit that peels off the insulating coating of the wire; and a moving unit that moves the peeling unit or the bobbin to adjust a peeling position.