JPH0379944B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a winding device for winding an electric wire around a core having a plurality of teeth.

[Technical background of the invention and its problems]

A winding device is used to wind a stator of a brushless motor or the like having a plurality of teeth. In conventional wire winding devices of this kind, the nozzles for discharging electric wire were individually driven by air cylinders, pulse motors, or the like. When winding a wire on a plurality of teeth at the same time by discharging wire from a plurality of nozzles, the plurality of nozzles must be slid an equal amount along the radially projecting teeth.

In conventional devices, all of these sliding mechanisms were individually attached to the drive mechanism of each nozzle, which resulted in a complicated mechanism and, in some cases, the winding pitch differed between multiple nozzles. It had

[Purpose of the invention]

An object of the present invention is to provide a winding device that can simultaneously move a plurality of nozzles by an equal amount in the radial direction of the teeth using a simple mechanism.

[Summary of the invention]

In this invention, in order to achieve the above object, a core to be wound having teeth projecting radially in the radial direction from the outer circumferential portion is slid at right angles in the radial direction and rotated around the sliding axis, A winding device for winding the electric wire around the teeth by sliding a plurality of nozzles supplying the electric wire in the radial direction, the winding device having a center point on the sliding axis of the core to be wound, a rotating cam having a spiral groove whose radial dimension from the center point changes as it rotates on a plane perpendicular to the axis, one end of which is movably fitted into the groove and the other end of which is inserted into the nozzle; A plurality of nozzle holders are provided by gripping the plurality of nozzle holders, and a plurality of means for slidably supporting the plurality of nozzle holders in the radial direction are provided, and the nozzle is moved in the radial direction by rotating the rotary cam at a desired pitch. It is characterized by sliding a certain amount at a time.

[Embodiments of the invention]

Embodiments of the present invention will be described in detail below based on the drawings.

FIG. 1 is a front sectional view of an embodiment of the present invention, and FIG. 2 is a plan view thereof.
A wire-wound core 2 is attached to the tip of the spindle 1, and a plurality of teeth 3a, 3b, 3c, 3d, . . . project radially from the outer peripheral portion of the wire-wound core 2. The spindle 1 slides vertically and at the same time rotates circumferentially by a predetermined angle.

Nozzles 4a, 4b, 4c, 4d... are provided so as to be located between the teeth 3a, 3b, 3c, 3d.... Therefore, each tooth 3 turns around the nozzle 4 due to the sliding and rotational movement of the spindle 1, so that the electric wire 5 supplied from the tip of the nozzle 4 is wound around the tooth 3. Become.

On the other hand, in order to wind the wire smoothly around the tooth 3, the nozzle 4
must slide in the radial direction of the tooth 3 by the wire diameter per turn. Nozzle 4 is in nozzle holder 6
The other end of the nozzle holder 6 is movably fitted into a spiral groove 8 cut on a rotary cam 7 via a cam floor 9.

The rotating cam 7 is usually formed into a disk shape, and its center point is on the sliding axis of the spindle 1. The center point of the spiral groove 8 cut on the rotating cam 7 is also on the sliding axis of the spindle 1. A motor 10 is provided in contact with the outer periphery of the rotating cam 7 in order to move the nozzle 4 in the radial direction by an amount corresponding to the wire diameter each time the electric wire is wound one turn around the teeth 3. Further, guides 11a, 11b, 11c, and 11d are provided to support the nozzle holder 6 so that it does not fluctuate when it slides in the radial direction.

In this way, the nozzle 4 is movably inserted into the spiral groove 8 carved on the surface of the rotary cam 7 via the nozzle holder 6 and the cam floor 9.
When the rotary cam 7 rotates by a desired pitch due to the rotation of the motor 10, it is guided by a guide 11 and moves by a fixed amount in the radial direction.

The amount of movement of the nozzle 4 at this time is determined by the amount of rotation of the rotating cam 7 and the shape of the spiral groove 8. Therefore, it is necessary to design the wire so that each turn is shifted by the diameter of the wire. In this way 1
By continuously rotating the rotary cam 7 by a desired pitch by the motor 10 for each turn, it is possible to wind the electric wire around the teeth 3 in an aligned manner.

In this manner, in the present invention, all movements of the nozzle 4 in the radial direction are performed by the rotation of the spiral grooves 8, so that all movements are made by the same amount.

Therefore, there is no longer a disadvantage that there is variation in the amount of movement between the nozzles as in conventional devices.

〔Effect of the invention〕

As described above in detail based on the embodiments, in this invention, the movement of the nozzle in the radial direction is entirely determined by the amount of rotation of a rotary cam having a spiral groove, so a simple mechanism can be used. There is an advantage that a large number of nozzles can be moved by the same amount at the same time.

[Brief explanation of drawings]

FIG. 1 is a plan sectional view of an apparatus showing an embodiment of the present invention, and FIG. 2 is a plan view. 2...Wound core, 3a, 3b, 3c, 3d...
... Teeth, 4, 4a, 4b, 4c, 4d... Nozzle, 5... Electric wire, 6... Nozzle holder, 7...
Rotating cam, 8... Spiral groove, 9... Cam floor, 10... Motor, 11a, 11b, 11c,
11d...Guide.

Claims (1)

[Claims] 1 A wire-wound core having a plurality of teeth protruding radially in the radial direction from the outer periphery is slid perpendicularly in the radial direction and rotated around this sliding axis, and a plurality of nozzles for supplying the electric wire are In the winding device for sliding the electric wire in the radial direction and winding the electric wire around the teeth, the winding device has a center point on the sliding axis of the core to be wound and rotates on a plane perpendicular to the sliding axis. a rotating cam having a spiral groove whose radial dimension from the center point changes; and a plurality of nozzle holders having one end movably inserted into the groove and the other end gripping the nozzle. and a plurality of means for slidably supporting the plurality of nozzle holders in the radial direction, and by rotating the rotating cam at a desired pitch, the nozzles are slid in the radial direction by a fixed amount. winding device.