JPS58207846A - Winding method for honeycomb coil and device therefor - Google Patents

Abstract

PURPOSE:To eliminate a pin for engaging a coil by fixing and folding a wire material which is supplied along the axial direction of a bobbin with a pair of fingers along the axial direction of the bobbin. CONSTITUTION:When one end of a wire material 4 is fixed with a pin 3 and a motor is started, the material 4 is wound on the outer periphery of a bobbin 1, engaged with the ends 8a, 8b of pawls 8, 8 provided at fingers 7, 7 and folded whenever the material 4 reaches both ends of the coil, and coil groups g of bundle shape are formed at the same position. Thereafter, the motor is stopped to rotate the fingers 7, 7 at the prescribed pitch to the direction of an arrow, the motor is again started to rotatably drive the fingers 7, 7 and the bobbin 1. Then, new coil group g' is formed at the position spaced at the prescribed distance from the group g formed previously. A honeycomb multiplex coil is formed by repeating the above sequence.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method and apparatus for winding a honeycomb coil, which particularly enables multiple windings, among honeycomb coils used for, for example, cores, rotors of Resmone, etc.

Usually, a so-called honeycomb-wound coil is used for the rotor used in a coreless motor, but this type of coil also comes in a variety of shapes, depending on the purpose of use, for example, as shown in Figure 1. As shown in the exploded view in Fig. 2, this so-called honeycomb multi-circuit winding coil consists of individual winding groups g, which are wound in bundles with a fixed number of turns.
While shifting ・ by a predetermined pitch in the direction of circle) and ■, each winding group g... forms a constant angle θ with respect to the circumferential direction,
It is wound so as to form a lattice shape by a group of windings 6 which are folded back every 180° in the circumferential direction and intersect with each other. Conventionally, the windings V For this purpose, a large number of bottles are protruded in an annular manner at a predetermined pitch in the circumferential direction from the outer periphery V of the bobbin around which the coil is wound, and a predetermined number of windings are connected to each bin to form a winding group G. I was trying to form...

However, in this winding method, when changing the width of the coil or the pitch of the winding group g..., a corresponding bobbin is required, and the protruding position of the bottle must be changed each time, or the bobbin must be It is necessary to manufacture a new bobbin with a different protrusion position, and when changing the diameter of the special VC coil, it is necessary to not only change the bobbin but also insert a new bobbin into the bobbin. Each time the specifications of the coil are changed, such as when the coil specifications need to be installed, a special bobbin is required, and the manufacturing cost of the bobbin is also high, which increases the manufacturing cost of the coil.

The present invention has been made based on the above circumstances, and an object thereof is to provide a method and apparatus for winding a honeycomb coil that can inexpensively manufacture various honeycomb multi-wound coils with different specifications. .

In order to achieve the above object, the present invention is characterized by the following configuration.

That is, in this method, the wire rods are supplied while reciprocating in the axial direction of the bobbin, and the tips of the wire rods are offset from each other by 180'' in the circumferential direction on the outer periphery of the bobbin, and the coils are moved along the axial direction of the bobbin. The bobbin/finger is folded back by being locked to a pair of fingers placed apart by the width dimension, and the bobbin/finger is rotated integrally.
V
From C, when manufacturing coils with different specifications, for example, when changing the width of the coil, it is necessary to change the spacing in the axial direction of the fingers, and when changing the pitch of the winding group, it is necessary to change the distance between the fingers. You only need to adjust the rotation angle relative to the bobbin, and if you want to change the diameter of the coil, you only need to replace the bobbin. This eliminates the need for a dedicated bobbin, making it possible to manufacture winding coils at low cost.

- Also, as an apparatus for carrying out the above method, a bobbin for winding a coil, a bobbin whose tips are offset from each other by 18o0 in the circumferential direction, and a bobbin of 4Ill on the outer periphery of the bobbin.
1) Place the wire rod in the wire direction V and place it at a distance equal to the width of the coil.
a pair of fingers, four wire rod supply mechanisms for reciprocating the supply position of the wire rod along the axial direction of the bobbin and cooperating with the rotation VC of the bobbin; a drive source for rotationally driving the bobbin and the fingers; By constructing the device with a finger step mechanism that moves the fingers at a predetermined pitch along the outer periphery of the bobbin, the device itself has a simple configuration and can be manufactured at low cost, and the cost of the manufactured coil can also be reduced.

Embodiments of the present invention will be specifically described below with reference to the drawings.

In Fig. 3, 1 is a bobbin for winding a coil, and both ends of the bobbin are removably supported on the first drive shafts 2, 2, and integrally with the drive shafts 2, 2 in the direction of arrow α. It is driven to rotate. On the outer periphery of one end of the bobbin 1, holes 3 for making taps, which will be described later, are protrudingly provided at appropriate intervals so as to be projectable and retractable.

Further, a tongue-shaped wire stopper 5 for locking one end of the wire 4 is attached via a screw 6 to the vicinity of these bins 3 .

Reference numeral 7.7 designates a pair of fingers each having claws 8, 8 attached to the tips thereof via screws 9.
12.1.
2, each tip 8a, 8a of the above-mentioned wind 8.8
around the outer periphery of the bobbin L in the circumferential direction.
°, and the coil is placed in contact with the circumferential surface of the bobbin 1 at a distance along the axial direction of the bobbin 1 by the width dimension number (indicated by 2 in the figure), or in a non-contact manner with a small gap between the coils. By the way, the winds 8, 8 are made of thin elastic metal plates with sharp tip ends 8a, 8a, and the bobbin l
[The raw wire rod to be wound is locked at its tip portions 8a, 8a and folded back.

The bobbin 1 and finger 7.7 are still in the first position.
It is connected to a motor (not shown) as a drive source via the drive shaft 2, the second drive shaft IO1, and a suitable speed reducer (not shown).

Further, between the 21st drive shaft 10 connected to the finger 7.7 and the motor, a finger 7.7 is rotated along the outer periphery of the bobbin 1 at a predetermined pitch (by a predetermined angle) and is rotated at an arbitrary angle. A finger step mechanism (not shown) is provided which can hold these fingers 7.7 stationary relative to the bobbin 1 in the rotational position of.

Note that a conventionally known finger step mechanism is used for this finger step mechanism.

This is a wire supply mechanism that allows the wire to reciprocate in time.

This mechanism 13 has a rotating arm 15 having a through hole 14 at its tip, through which the wire 4 is inserted, whose base end is pivoted to a base (not shown) so that the through hole 14 extends in the axial direction of the bobbin l. The tip of the guide pin 16 protruding from the middle part of the rotating arm 15 is fitted into the profiling groove 18 cut on the outer periphery of the copying roll 17, so that the guide pin 16 is copied. The distal end of the rotary arm 15 is rotated by rotating the copying roll 17 so as to perform a copying operation in the groove 18.

It is designed to reciprocate along the axial direction of the cylinder 1.

The copying groove 18 is carved in a shape such that, for example, a sinusoidal waveform for one period is drawn on the circumferential surface of the copying roll 17. Further, the drive shaft 1'i'a of the copying roll 17 is connected to the first drive shaft 2 that drives the bobbin 1 via means such as a gear, so that both the bobbin 1 and the copying roll 17 are driven to rotate at the same speed. I'm trying to make it happen. In other words, the rotating arm 15 makes one reciprocating motion every time the bobbin 1 rotates once.

Next, a winding method V using the winding device based on the above embodiment
C will be specifically explained with reference to FIGS. 3 and 4.

First, when one end of the wire 4 is locked to the wire stopper 5 and the bin 3 and the motor is started, the bobbin 1 and the fingers 7, 7
are rotated at the same speed in the direction of the arrow α, and the wire 4 is wound around the outer periphery of the bobbin 1 at a constant angle θ with the circumferential direction, and each time the wire 4 reaches both ends of the coil, , the tips 8a of the claws 8,8 provided on the fingers 7.7.

8a and is folded back, forming a bundle-shaped winding group g at the same location as shown in FIG. 4(C)K.

After forming the winding group g with a predetermined number of windings, the motor is stopped and the finger 7 is turned by the finger step mechanism.
7 by a predetermined pitch (predetermined angle) in the direction of the arrow α, and the motor is started again to rotate the finger 7.7 and the bobbin 1, as shown in FIG. 4(d). A new winding group g+ is formed at a position separated by a certain distance from the winding group g.

Hereinafter, by repeating the above procedure, the honeycomb multi-wound coil shown in FIG. 1 is formed.

Further, FIG. 4(d) explains how to set the tap t.

That is, after forming the previous winding group g, the wire rod 4 between the bobbin 1 and the wire rod supply mechanism 13 is loosened and the wire rod 4 is inserted into the bin 3 as shown in the figure.
, 3 in a loop shape, and when the coil winding work is completed, each pin 3... is inserted into the pobin and the pin 3 is locked.
It is only necessary to release the locking of the taps t..., remove the coil from the bobbin 1, and return each tap t... by 1 as shown in FIG.

Next, we will explain what to do when the specifications of the V coil are changed.

'First, when changing the coil rl]=f method, it is sufficient to adjust the distance H between the pawls 8 and 8 of the fingers 7 and 7 in the axial direction of the bobbin 1.

Further, when changing the number of winding groups g..., that is, the intervals between each winding/wire group g..., it is sufficient to change the number of steps by the finger step mechanism as appropriate.

Furthermore, if the diameter of the coil is to be changed, this can be done simply by changing the bobbin 1.

Therefore, according to the method based on the present invention, there is no need to cut the bobbin for folding the wire with a weight, which eliminates the trouble of manufacturing a dedicated bobbin every time the coil specifications are changed. This eliminates the need for multiple winding coils with various specifications, and enables inexpensive VC manufacturing of NECAM multi-wound coils.

According to the device based on the present invention, the structure is simple and the device itself can be manufactured at low cost, so that the manufacturing cost of the single coil is also low.

By the way, in this actual example, each time one winding group g is wound,
Although the motor is stopped and the finger 7 is rotated by the finger step mechanism, the finger step mechanism is operated based on an external drive signal, and the entire device is controlled by 7 degrees. Line work can also be automated.

In addition, various coils are formed by appropriately selecting the number of windings of the winding group g... and the step amount of the fingers. Unfortunately, by setting the number of windings to 2 to 3 times, a double or triple multi-layered coil is formed in which each winding is in close contact with each other.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a honeycomb multi-wound coil, Fig. 2 is an explanatory view showing the expanded state of the coil, Fig. 3 is a perspective view of main parts showing one embodiment of the present invention, Fig. 4(a) -(d) are explanatory diagrams each showing the winding procedure of the coil. 1. Bobbin 4... Wire rod

Claims (2)

[Claims] (1) The wire rods that are fed while reciprocating along the bobbin axis no.
A pair of fingers VC arranged in one line direction and spaced apart by the width of the coil are locked and folded 31.
The bobbin and the finger are rotated integrally (7) The wire is wound around the outer circumference of the bobbin, and each time the wire is wound a predetermined number of times, the finger is moved along the outer circumference of the bobbin by a fixed angle. A method for winding a honeycomb and coil, characterized by the following: (2) A bobbin on which the coil is wound, and a pair of VCs arranged on the outer periphery of the bobbin, with their ends shifted by 1800 degrees in the circumferential direction, and the wire on which the coil is placed along the axial direction of the bobbin is locked and folded back. a wire rod supply mechanism that reciprocates a finger and a wire rod supply position along the tlIlll line direction of the bobbin and in synchronization with the rotation of the bobbin; a drive source that rotationally drives the bobbin and the upper tbi finger;
1. A winding device for a coil, characterized in that it is equipped with a finger step mechanism that moves the fingers at a predetermined pitch around the outer periphery of the bobbin.