JPS6096155A - Winding machine - Google Patents

Abstract

PURPOSE:To simply reduce the size of a mechanism by obtaining the bidirectional motions of a needle shaft by an L-shaped bracket mounted on the tapered seat of a rotating taper cone and a pin coupled through a spherical slide bearing with the bracket. CONSTITUTION:A pin 17 is fixedly secured to an axis perpendicular to a needle shaft 4, and a taper cone 18 is rotatably supported by a drive unit at an axis parallel to the deflected from the axial center line of the pin 17 to a machine base 7. A taper seat 23 of 1/2 of the necessary tilting angle of a needle 3 to the rotating center line is provided on the cone 18. An L-shaped bracket 24 is mounted on the tapered seat 23, and the pin 17 is coupled through a spherical slide bearing 27 with the bracket 24. The shaft 4 is reciprocated and rotated at an axial stroke of twice of the rotating radius and an angle of twice of the angle of the taper seat 23 through the pin 17 by the rotation of the cone 18.

Description

[Detailed description of the invention] Technical fields> The present invention relates to a winding machine for a motor stator.

<Prior art> As shown in FIG. 1, the stator of an electric motor, that is, the winding of the core, is indexed and positioned at a predetermined position by one of a plurality of winding parts 2 protruding radially from the inner periphery of the core 1. Then, the needle 3 passing through the slot gap 5 is reciprocated in the axial direction, and the needle shaft 4, which coincides with the center point O of the core 1, is moved at a predetermined angle, for example, as shown in the figure, to the winding part 2. is 8
When the wires 6 are located at equal positions, the wire 6 is wound by the oscillating motion of the needle 3, which reciprocates at an angle of 4°.

Separate mechanisms or grooved cam mechanisms have been used to make the needle shaft 4 reciprocate in the axial direction and reciprocate at a required angle in the same direction. In the case of a separate mechanism, there is a problem that the structure is complicated, resulting in an increase in size and cost, and in the case of a grooved cam mechanism, there is a problem in that it is difficult to generate an image and control motion, resulting in a lack of smoothness.

<Objective of the Invention> The present invention is capable of converting the rotational movement of a very simple single mechanism into two types of movement: a reciprocating movement in the axial direction of a needle shaft and a reciprocating movement of a required angle, thereby reducing the size of the mechanism,
This is an attempt to reduce costs.

<Structure of the Invention> A needle is provided with an axis perpendicular to the tip of a cylindrical needle shaft supported on a machine base so as to be movable in the axial direction and rotatable in the circumferential direction, and a wire is inserted into the axial hole of the needle shaft. The wire is inserted through the needle and taken out from the needle, and the wire is rotated against the winding portion of the core held in an indexable core receiver by the axial stroke of the needle shaft and the neck movement caused by reciprocating rotation in the circumferential direction. In a winding machine that winds a wire in a winding section, a pinot is fixed with an axis perpendicular to the needle shaft VC, and a taper cone is rotatable by a drive device on the machine stand with an axis eccentric and parallel to the axis of the bin. This tapered cone is provided with a tapered bearing surface at an angle of 1/2 of the necessary swing angle of the needle with respect to its rotation center line, and an L-shaped bracket is attached to this child bar bearing surface. The bottle is connected to a bracket via a spherical sliding bearing.

<Example> An example of the present invention will be described below with reference to FIGS. 2 and 3. In FIG. 2, reference numeral 7 denotes a machine base, on which a cylindrical needle shaft 4 is supported so as to be movable in the axial direction and rotatable in the circumferential direction. A needle 3 is provided at the tip of this needle shaft 4 with an axis perpendicular to it.

Reference numeral 8 denotes a core receiver which is rotatably supported on the machine base 7 concentrically with the center of rotation of the needle shaft 4 so as to be indexable and rotatable.

This core receiver 80 indexing mechanism has a chain 12 hooked between a sprocket 10 on the output shaft of an indexing motor 9 fixed to the machine base 7 and a sprocket 11 provided on the support tube of the core receiver 8. Further, an indexing plate 13 and a seven-piece 15 are provided on the support cylinder, and the indexing plate 1:1 is composed of a positioning cylinder 14 that engages and disengages.

The wire taken out from the needle 3 is wound around the winding part of the core 1 installed in the core receiver 8 by the reciprocating movement of the needle shaft 4 in the axial direction and the reciprocating movement of the needle shaft 4 at a required angle in the circumferential direction. However, in the present invention, the mechanism for moving the needle shaft 4 in the two directions has the following configuration.

That is, the bottle 17 is fixed via the needle shuffle l-4 VC holder 16 along a perpendicular axis. And machine 7&
C is an axis eccentric and parallel to the axis of the bottle 17, and the taper cone 18 is connected to a rotating shaft 19 and a bearing 2 that supports the rotary shaft 19.
It is provided rotatably by 0. A pulley 21 is attached to the end of the rotating shaft 19 to rotate and drive the taper cone 18, and a belt 22 is used to rotate and drive the taper cone 18.
It is a structure connected by.

The taper cone 18 has an angle ρ with respect to its rotation center line.
A KL type bracket 24 is attached to the tapered seat surface 23 with bolts 26Vc, and the bin 17 is connected to the bracket 24 via a spherical sliding bearing 27.

Therefore, the important point of the present invention is that the angle ρ2 of the tapered seat surface 23 provided on the taper cone 18 is set at 1/2 angle of the necessary neck angle ρ□ of the needle 3 shown in FIG. It is something. For example, as shown in FIG. 1, when the inner circumference of the winding portion 2 of the core 1 is divided into eight equal parts, the angle between the slot gaps 5 is 45°. Therefore, the oscillation angle of the needle 3 needs to be 45'), and the Taber bearing surface 2
The angle ρ2 of 3 is set at 22.5°.

Further, the L-shaped bracket 24 attached to the tapered seat surface 23 has an elongated hole 25 in the direction along the tapered seat surface 23 in the base member that comes into contact with the tapered seat surface 23, and the range of this elongated hole 25 is The bracket 24 can be adjusted to move forward or backward along the Taper seat surface 23, and the holder 16 can be moved along with the rotation radius hK between the rotation center line of the taper cone 18 and the pin 17, which changes depending on the forward and backward movement position of the bracket. This makes it possible to adjust the stroke amount h1 of the needle shaft 4 in the axial direction based on the radius of rotation.

In addition, a plurality of tapered seating surfaces 23c provided on the taper cone 18 and a plurality of tapered seating surfaces with different angles IP2 are provided on the outer circumferential surface of the tapered cone 18, and the L-shaped bracket 24 can be changed to a required tapered seating surface as necessary. However, it is also possible to make it correspond to the required swing angle of the needle 3 based on the number of windings g (S2) provided on the core 1.

Since the present invention has the structure as described above, the Taber cone 1
Due to 80 rotations, the needle shaft 4 has an axial stroke amount h1 twice the rotation radius via the pin 17,
A reciprocating rotational movement of the angle θ1, which is twice the angle θ2 of the Taber bearing surface 23, is obtained, and as a result, the locus line A drawn by the needle 3 becomes a sine curved circle, and the wire 6 taken out from the needle 3 is connected to the core l. The winding part 2+IC is wound.

Effect> As described above, in the present invention, the two-way movement of the reciprocating movement of the needle shaft in the axial direction and the reciprocating movement of the needle at the required angle to swing the needle is achieved by attaching it to the taper bearing surface of the rotating taper cone. This is achieved by a single simple mechanism consisting of an fcL type bracket and a pin connected to this bracket via a spherical sliding bearing and fixed on the axis perpendicular to the needle shaft, so the structure is simple and compact. The stroke amount of the axial reciprocating motion can be arbitrarily obtained by changing the position of the racket 24, and the swing angle of the needle can also be adjusted by adjusting the bracket to the required angle. By changing the mounting stage on the Taber bearing surface, several types of swing angles can be obtained, and it has the advantage of being able to wind different types of cores with high productivity using one winding machine.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram of a method of winding a core, FIG. 2 is a sectional view of a winding machine according to the present invention, and FIG. 3 is an explanatory diagram of the operation of the present invention. ■...Core, 2...Winding! , 3...needle, 4
... Needle shaft, 5... Slot gap,
6-@-wire, 7... machine base, 8... e-core receiver, 1
7... Pin, 18... Taper cone, 23...
7-C seat surface, 24--・L-shaped bracket, 25...
Long hole, 26... Bolt, 27... Spherical sliding bearing.

Claims (1)

[Claims] fil A needle is provided with an axis perpendicular to the tip of a cylindrical needle shaft which is supported on a machine base so as to be movable in the axial direction and rotatable in the circumferential direction, and the wire is connected to the axis of the needle shaft. The wire is inserted through the hole and taken out from the needle, and the wire is attached to the winding portion of the core held in the indexable core receiver by the axial stroke of the needle shaft and the oscillating motion caused by the reciprocating rotation in the circumferential direction. In a winding machine that winds a wire in a winding section, a pin is fixed with an axis perpendicular to the needle shaft, and a taper cone can be rotated by a drive device on the machine stand with an axis eccentric and parallel to the axis of the pin. This taper cone is provided with a tapered bearing surface having an angle of V2, which is the necessary swing angle of the needle, with respect to the rotation center line of the cone, and an L-shaped bracket is attached to this tapered bearing surface. A winding machine characterized by connecting pins via spherical sliding bearings. (2) The winding machine according to claim 1, wherein the bracket is mounted so as to be movable and adjustable along the tapered seating surface. (3) A plurality of tapered seats are provided on the outer peripheral surface of the taper cone, each having a different angle at one angle of the necessary swing angle of the needle, and an L-shaped bracket is set up and attached to one of the tapered seats. The winding machine according to claim 1, which enables the winding machine according to claim 1.