JPS63305738A - Winding apparatus for rotary electric machine - Google Patents

Abstract

PURPOSE:To alleviate a stress applied to a wire, to accelerate and to automate a winding work by controlling the rotation of a wire drum by a position detection signal of a rotary shaft attached with a winding frame and a tension detection signal of the wire so that its tension becomes constant. CONSTITUTION:A wire 5 wound on a wire drum 13 is wound through a tension applying mechanism 12 on a winding frame 1. A cam 9 and a position detector 10 are provided at one end of a rotary shaft 7 for rotating the frame 1 to always obtain a position detection signal of the frame 1. A tension detector 18 is provided in the mechanism 12 to obtain a tension detection signal of the wire 5. The rotating speed of a motor 19 for driving the drum 13 is so controlled that the tension of the wire 5 becomes constant on the basis of the position detection signal and the tension detection signal. Thus, the winding work can be accelerated and automated.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention (Field of Industrial Application) The present invention relates to a coil winding device for use in a rotating electric machine.

(Prior Art) Conventionally, when winding a coil to be inserted into the iron core of a rotating electrical machine, as shown in FIG. An operator holds the electric wire 5 which is rotated and wound around a separately placed wire drum 4, and winds it around the winding form 1 while adjusting the tension.

(Problems to be Solved by the Invention) According to such a conventional wire winding device, the electric wire 5 is pulled out from the wire drum 4 when the longitudinal direction of the winding form 1 is horizontal and vertical. The speeds are greatly different, especially when transitioning from a horizontal state to a vertical state, the acceleration of the wire 5 being pulled out from the wire drum 4 is maximum, and furthermore, there is a phenomenon in which the winding form 1 slams the wire 5 before and after the horizontal state. If a large shock is applied to the wire 5, the wire may become unwound within the winding form 1, or problems such as insulation damage or local elongation of the wire may occur, impeding the speeding up and automation of the winding work. This also caused deterioration in the quality of the coil.

SUMMARY OF THE INVENTION In order to solve these problems, it is an object of the present invention to provide a winding device for a rotating electrical machine that can be operated at high speed and automated while minimizing shock applied to electric wires.

[Structure of the Invention] (Means for Solving the Problems) The winding device for a rotating electrical machine of the present invention includes a cam attached to one end of a rotating shaft to which a winding form is attached, and a rotational position being detected by contacting the outer periphery of the cam. A tension applying mechanism is provided between the wire drum and the winding form and has a tension detector that applies a certain tension to the wire wound around the winding form and detects the tension. The present invention is characterized in that the rotation of the wire drum drive motor is controlled so as to apply a constant tension to the wire being wound by the output signals of the detector and the tension detector.

(Function) According to the winding device of the present invention, when the speed of the electric wire wound around the winding form differs depending on the rotational position of the winding form, the output signal of the rotational position detector that is in contact with the outer periphery of the cam is used to control the winding of the wire. If an output signal is generated from the tension detector of the tension applying device that synchronizes the rotation speed of the drum drive motor and gives a constant tension, this output is also added to control the rotation speed of the wire drum drive motor. Therefore, a constant tension is always applied to the electric wire wound around the winding form, and the winding operation can be performed.

(Example) Hereinafter, an example of a winding device for a rotating electric machine according to the present invention will be described with reference to FIGS. 1 and 2. In FIG. 1, an elongated winding form 1 is attached to a winding shaft 7 of a winding machine 6, and is rotated by a drive motor 8.

A cam 9 is attached to one end of the winding/shaft 7, and a rotational position detector 10 is attached to the outer periphery of the cam 9 to detect the rotational position of the cam 9. Moreover, the electric wire 5 wound around the winding form 1
is supplied from a wire drum 13 through a wire guide 11 and a tension applying mechanism 12. This tension applying mechanism 12 has one end rotatably supported by a shaft 14 and an electric wire 5 at the other end.
An air cylinder 17 is located between the pillars 16 to apply a constant tension to the electric wires 5, and a tension detector is installed to detect the tension state based on the inclination of the pillars 16. A container 18 is attached. A servo motor 19 and a rotary generator 20 are attached to the rotating shaft of the wire drum 13. Output signal from rotational position detector 10 attached to cam 9 and tension applying mechanism 1
The output signal of the tension detector 18 provided at
is driven to rotate the wire drum 13 and send out the electric wire 5. Furthermore, the rotational position detector 10 provided on the winding shaft 7 applies the change in the speed of the electric wire 5 pulled by the rotation of the winding form 1 as a speed command to the speed control device 22 of the wire drum 13. A small speed command is issued near the horizontal position in the longitudinal direction, and a large speed command is issued near the vertical position.

Next, the operation of the present invention in the above configuration will be explained.

When the winding machine 6 starts rotating by the drive motor 8, the winding shaft 7
From the rotational position detector 10 by the cam 9 provided in the
A rotation speed command for the wire drum 13 corresponding to the detected rotation angle is output. In response to this command, the wire drum 13 starts rotating by the speed control device 22 to supply the electric wire 5.

On the other hand, the electric wire 5 is pulled as the winding form 1 starts rotating, and tries to pull the drum 15 of the tension applying mechanism 12 in the direction of arrow A. However, the rotational position detector 1 of the cam 9 mentioned above
0, the wire drum 13 has already started to rotate and starts supplying the wire 5. Therefore, the drum 15 of the tension applying mechanism 12 remains in its original position and always applies the wire 5 to the winding form 1 with a constant tension. supply

Also, the position of the elongated winding form 1 changes, and the winding form 1
Near the horizontal position in the longitudinal direction, the speed of the electric wire 5 is slowest, the output signal from the rotational position detector 10 of the cam 9 also becomes small, and the rotation of the wire drum 13 becomes slow. Similarly, near the vertical position from the rotational position of the winding form 1, the speed of the electric wire 5 is the fastest and the output signal from the rotational position detector 10 is also the largest, so the wire drum 13 rotates faster. In this way, the wire drum 13 operates in synchronization with the speed of the electric wire 5 depending on the rotational position of the winding form 1.

Furthermore, as the electric wire 5 is wound around the winding form 1, the winding diameter of the winding form 1 gradually increases, and the pulling speed of the electric wire 5 per rotation becomes faster. Conversely, the wire drum 13 has fewer electric wires 5, the winding diameter becomes smaller, and the feeding speed of the electric wires 5 per rotation becomes slower. At this time, the drum 15 of the tension applying mechanism 12 is pulled in the direction of arrow A. When the drum 15 moves in the direction of arrow A, the tension detector 18
The output signal of the wire drum 13 changes, and the speed command signal to the wire drum 13 is increased. For this reason, wire drum 1
3 increases the speed and synchronizes with the speed of winding die 1. Supply I5.

In this way, when the position of the drum 15 of the tension applying mechanism 12 changes due to speed fluctuations of the electric wire 5, etc., the output signal from the tension detector 18 changes, and the speed command signal to the wire drum 13 is thickened. For this reason, the speed command input to the speed control device 22 of the wire drum 13 also changes, the rotational speed of the wire drum 13 is corrected, and the wire 5 with a constant tension is always stably supplied to the winding form 1. .

As described above, according to this embodiment, the wire drum 13 is driven in synchronization with the wire winding speed of the winding form 1 and the electric wire 5 with a constant tension is supplied, so that the winding form 1 hits the electric wire 5. Since there is less shock and there is no miswinding of the wire 5 in the winding form 1, there is no insulation damage or local elongation of the wire 5, making it possible to automate and speed up the winding work.

Next, another embodiment of the present invention will be described using FIGS. 3 and 4. The drive motor 8 of the winding machine 6 is replaced by a servo motor 23.
The rotational speed of the winding shaft 7 can be varied by a speed control device 26 consisting of a rotary generator 24 and a servo controller 25, and a command from a winding shaft speed command device 27 to the speed control device 26 is transmitted to the wire drum. By using the wire drum 13 as a speed command in addition to the output signals from other rotational position detectors 10 and tension detectors 18, the wire drum 13 can be operated more smoothly by the winding machine 6 at the start and end of work. things become possible.

[Effects of the Invention] According to the winding device for a rotating electric machine of the present invention, the supply of electric wire from the wire drum is performed smoothly in synchronization with the rotational speed of the winding former, so that less shock is applied to the electric wire. ,
There is no miswinding of the wire within the winding form, and there are no problems such as insulation damage or local elongation of the wire, so the winding work can be automated and speeded up.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a winding device for a rotating electric machine showing one embodiment of the present invention, FIG. 2 is a block diagram of FIG. 1, and FIG. 3 is a partial block diagram showing another embodiment of the present invention. FIG. 4 is a block diagram of FIG. 3, and FIG. 5 is a configuration diagram of a conventional winding device. 1... Winding form, 7... Winding shaft (rotating shaft), 8.23.
... Rolling form drive motor, 9... Cam, 10... Rotation position detector, 12... Tension adding mechanism, 13... Wire drum, 18... Tension detector, 19... Drum Drive motor, 21.25... Servo controller, 22.26... Speed control device. Agent Patent Attorney Noriyuki Ken Yudo Daiko Maru Masaru 3rd Sen Iδ Figure 4

Claims (1)

[Claims] The winding form is attached to a rotating shaft and rotated by a drive motor.
In a winding device for a rotating electric machine, in which a coil is manufactured by winding an electric wire wound around a wire drum, a cam attached to one end of the rotating shaft and a cam in contact with the outer circumference of the cam determine its rotational position. On the other hand, the wire drum is equipped with a drive motor on its rotating shaft, and a drive motor located between the wire drum and the winding form to apply a constant tension to the electric wire wound around the winding form, and to apply the tension to the electric wire wound on the winding form. and a tension applying mechanism having a tension detector that detects the rotation position detector and the tension detector, and controls the rotation of the wire drum drive motor so as to apply a constant tension to the wound electric wire based on the output signals of the rotational position detector and the tension detector. A winding device for a rotating electric machine characterized by: