JPS61173650A - Automatic winding unit of rotary electric machine - Google Patents

Abstract

PURPOSE:To automatically wind a coil by forming an angle of a skewing angle thetabetween the axial center for passing a wire nozzle and the axial center of a stator core. CONSTITUTION:When a wire nozzle 18 passes a groove opening, a crank pin 32 for rotatably coupling one end of a connecting rod 29 with a crank wheel 28 varies during an angle alpha. For example, in case of the state as shown, if the rotating direction is the symbol 33 of an arrow, a push rod 24 moves in a direction of an arrow 34. In other words, a stator core 1 turns in an arrow 35. This operation is repeated to continuously wind a magnet wire 30 on the core groove 2 of the core 1.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an automatic winding device for a rotating electrical machine that automatically winds a coil around a core groove having a skew angle in a stator core of a rotating electrical machine.

[Technical background of the invention and its problems] Conventionally, as shown in FIG. 3, the core grooves 2 and openings 3 of the stator core 1 are twisted by a skew angle θ with respect to the axis 4 of the stator core 1. There was no automatic winding device for automatically winding stator coils on stator recessed centers. Therefore,
Since it was done manually, it required a lot of manpower and had the drawback of extremely low productivity.

[Object of the Invention] An object of the present invention is to significantly improve productivity by automatically winding coils in the core grooves of the stator core with a skew angle. An object of the present invention is to provide an automatic coil winding device.

[Summary of the Invention] The present invention is an automatic coil winding device characterized in that the axis of a spindle through which a wire nozzle passes and the axis of a stator core are angled by a skew angle.

[Embodiment of the Invention] An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. FIG. 1 is a plan view of the main mechanism of this device, and FIG. 2 is a side view of FIG. 1. This device clamps the stator core 1, and has a clamp device E which can be oscillated by an arbitrary angle according to the number of core grooves 2 of the stator core 1, and an arbitrary a spindle 12 that can move forward and backward by a distance of
It consists of

The clamp device E is also configured to be angled with the axis of the spindle 12 by the skew angle θ of the core groove 2 of the stator core 1.

The above-mentioned clamping device Eyu has a core holder 15 for positioning and mounting the stator core 1 at a predetermined angle, a clamp claw 16 for clamping the fixed core 1, and a core support for swinging the stator core 1 by an arbitrary angle. It consists of an arm 17.

On the other hand, the spindle 12 has a wire nozzle 1 at its tip.
8 and an arm 20 for moving the spindle 19 back and forth, and the spindle 19 and the wire nozzle 18 are hollow inside.

The link mechanism 1 includes a chain 21 for transmitting the rotational motion of the drive motor 14, a cam wheel 22 for swinging the stator core 1, and a reciprocating motion along the cam groove 23 of the cam wheel 22. a bushing rod 24 that performs
5 and a connecting rod 26 that connects this and the arm 17. On the other hand, the rotation of the cam wheel 22 is transmitted to a crank wheel 28 by a chain 27, and the rotation of the crank wheel 28 is configured to transmit reciprocating motion to the arm 20 via a connecting rod 29.

Next, to explain the present invention in detail, the stator core 1 is mounted on the base 1 with the groove insulator 6 inserted into the core groove 2.
5 by a positioning mechanism (not shown) and clamped by a clamp claw 16.

On the other hand, the magnet wire 30 passes through the hollow part 31 of the spindle 19 and is further guided to the wire nozzle 18 which is hollow inside.

In this state, the magnet wire 30 coming out of the wire nozzle 18 is clamped at its tip by a wire clamping device (not shown), and coil winding is started.

The rotation of the drive motor 14 is transmitted to the cam wheel 22 by the chain 21 .

The rotation of the cam wheel 22 is further carried out via a chain 27.
The signal is transmitted to the crank wheel 28, and the cam wheel 22 and the crank wheel 28 rotate in synchronization.

Since the rotation radius of the cam groove 23 of the cam wheel 22 is constant during the angle β shown in FIG. 1, the bushing rod 24 does not move, and therefore the stator core 1 is in a stationary state.

Since the crank wheel 28 on the side rotates in synchronization with the rotational movement of the cam wheel 23, it constantly performs rotational movement, so the spindle 19 continuously performs reciprocating movement via the connecting rod 29. ing.

However, when the tip of the wire nozzle 18 passes through the groove opening 3 of the stator core 1, the stator core 1 must be in a stationary state. Therefore, the crank wheel 28
The cam wheel 2 is moved so that the wire nozzle 18 passes through the groove opening 3 of the stator core 1 within the range shown by the angle β.
2 and the crank wheel 28 are synchronized in timing.

At the same time as the wire nozzle 18 passes through the groove opening 3,
A crank pin 32 rotatably connecting one end of the connecting rod 29 to the crank wheel 28 changes during the angle α. For example, in the state shown in FIG.
, i.e. the stator core 1 pivots in the direction of the arrow symbol 35.

By repeating this operation, the magnet wire 30
is continuously wound around the core groove 2 of the stator core 1.

[Effects of the Invention] As described above, according to the present invention, in a stator core with a skew angle, winding of a coil can be automatically performed, so that productivity can be significantly improved.

[Brief explanation of drawings]

FIG. 1 is a plan view of the structure of the invention, FIG. 2 is a side view of FIG. 1, and FIG. 3 is a partial perspective view of a stator core with a skew angle. 1... Stator core 2... Core groove 3... Groove opening U... Clamping device 12... Spindle 13... Link mechanism 18... Wire nozzle θ...
... Iron core groove skew angle agent Patent attorney Noriyuki Chika (1 person) Fig. 1 J Fig. 2 Fig. 3

Claims (1)

[Claims] In an automatic winding device that automatically winds a coil around a stator core in which the core groove of a stator core of a rotating electric machine has a skew angle, the axis through which a wire nozzle passes and the axis of the stator core are set at a skew angle θ. An automatic winding device for rotating electric machines characterized by an angle set at a certain angle.