JPS63305739A - Winding apparatus for rotary electric machine - Google Patents

Abstract

PURPOSE:To reduce a shock applied to a wire, to accelerate and to automate a winding by rotating a winding frame by a waveformlike speed command, detecting a wire feeding speed and a tension, and rotating a wire drum so that its tension becomes constant. CONSTITUTION:When a wire 5 wound on a wire drum 13 is fed through a tension applying mechanism 12 to be wound on a winding frame 1, a motor 9 for rotating the frame 1 is controlled by a waveformlike speed command signal. A speed detector 14 and a tension detector 22 are provided to detect the feeding speed and the tension of the wire 5. A wire drum 17 is rotated by a motor 24 on the basis of a speed detection signal and a tension detection signal so that the tension of the wire 5 becomes constant. Thus, since a shock is not applied to the wire 5, a winding work can be accelerated and automated.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) 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. 3, an operator holds the electric wire 5 wound around a separate 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 electric machine that can reduce shocks applied to electric wires as much as possible, and can increase speed and automate the winding device.

[Structure of the Invention] (Means for Solving the Problems) A winding device for a rotating electrical machine according to the present invention includes means for giving a speed command for rotating the winding form at a preset wave-shaped speed, and a winding device for a rotating electric machine according to the present invention. A speed detector detects the feeding speed of the wire being wound around the mold, and a tension detector is located between the wire drum and the winding form and applies a constant tension to the wire being wound around the winding form and detects the tension. a tension applying mechanism having a tension applying mechanism, a means for commanding a speed similar to the speed of the waveform, and a wire configured to apply a constant tension to the wire being wound based on the output signals of the speed detector and the tension detector. It is characterized by controlling the rotation of the drum drive motor.

(Function) According to the winding device of the present invention, the speed of the waveform is preset by a microcomputer so that the acceleration of the wire wound around the winding form does not change greatly depending on the rotational position of the winding form (that is, the impact is small). If a command is given to the rotating shaft of the winding form and also given to the wire drum drive motor, and an output signal is generated from the tension detector of the tensioning device that detects the feed speed of the wire and gives a constant tension, Since the rotational speed of the wire drum drive motor is controlled by this output signal, a constant tension is always applied to the electric wire wound around the winding form during the winding operation.

(Example) An example of a winding device for a rotating electric machine according to the present invention will be described below 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 servo motor 9 controlled by a speed control device 8. A rotary generator 10 and a pulse generator 11 are connected to the servo motor 9. The output of the rotary generator 10 is connected to a servo controller 12, and the output of the pulse generator 11 is connected to a CPU 13.

Further, the electric wire 5 wound around the winding form 1 is connected to a pulse generator 14,
It is supplied from a wire drum 17 via a wire guide 15 and a tension applying mechanism 16.

This tension applying mechanism 16 includes a column 20 whose one end is rotatably supported by a shaft 18 and whose other end is pivotally supported by a drum 19 around which an electric wire 5 is wound. An air cylinder 21 for applying a constant tension to the support column 2
Tension detector 2 that detects the tension state by the slope of 0
2 is installed.

The wire drum 17 is rotated by a servo motor 24 equipped with a rotary generator 23 . The output of the rotary generator 23 is connected to a servo controller 26 of the speed controller 25.

Further, the output of the CPU 13 that processes the output of the pulse generator 14 that detects the feed speed of the wire 5 wound around the winding form 1 is connected to the adder 27 along with the output of the tension detector 22, and the output is sent to the servo controller. 26. CPU13
As shown in FIG. 3, the speed command given to the winding form speed control device 8 is based on the longitudinal force of the elongated winding form.

It has a sinusoidal shape with low values in the horizontal state (0, π, 2π) and high values in the vertical state. This value is changed as appropriate depending on the size of the coil, the thickness of the electric wire 5, etc. Further, as the winding of the electric wire 5 around the winding form 1 progresses, the winding diameter of the winding form 1 gradually increases, and the feeding speed of the electric wire 5 per revolution of the winding form also increases. At this time, the number of pulse signals from the pulse generator 14, which is a speed detector, increases, so the CPU 13
The command value for the adder 27 also increases, the rotation of the servo motor 24 increases, and the electric wire 5 fed out from the wire drum 17 becomes faster.

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

First, while the winding machine 6 is stopped, the electric wire 5 pulled out from the wire drum 17 passes through the drum 19 of the tension applying mechanism 16, the wire guide 15, and the pulse generator 14, and then reaches the winding shaft 7.
It is fixed to the winding form 1 attached to. At this time, winding form 1
The longitudinal direction of is horizontal. When the winding machine 6 starts operating, the CPU 13 gives a preset sinusoidal speed command as shown in FIG. 3 to the servo controller 12.
The servo motor 9 starts rotating. The reason why the preset speed command is set in a waveform including a sine wave is to prevent the winding form 1 from hitting the winding wire 5 before and after the horizontal state, so that the winding form 1 rotates before and after the horizontal state. This is because we want to reduce the speed. Feedback is applied by the rotary generator 10 connected to the servo controller 12, and the servo motor 9 is controlled to a predetermined speed. When the electric wire 5 is fed in, the pulse generator 1 which is its speed detector
4 generates a pulse signal. The generated pulse signal is C
It is input to the PU 13 and outputs a command having a value similar to the sinusoidal speed command shown in FIG. 3 to the adder 27. The output command is added to the output of the tension detector 22, and the output is input to the servo controller 26 to drive the servo motor 24.

At this time, the tension applying mechanism 16 connects the tension detector 22 and the CPU.
Control is always performed so that the 13 commands are at a balanced position.

Therefore, by changing the command of the CPU 13, the tension applying mechanism 16 can be easily moved and the tension can be changed. Also, the CPU 1 to the servo controller 12 of the speed control device 8
By changing the output of step 3, you can easily change the size of the coil,
It is possible to obtain a winding speed according to the thickness of the wire. Further, by processing pulse signals from a pulse generator 11 connected to the CPU 13, the stop position and number of windings of the winding shaft 7 can be controlled.

As described above, according to this embodiment, the wire drum is driven in synchronization with the rotational speed of the winding form 1 and the electric wire 5 of constant tension is supplied, so that the impact applied to the electric wire 5 is reduced, and the winding Displacement of the wire 5 in the mold 1, insulation damage, local elongation, etc. of the wire 5 can be prevented, and winding work can be speeded up and automated.

Next, another embodiment of the present invention will be described using FIG. 4.

A pulse generator 28 is installed in the speed control device 25 of the wire drum section.
is provided and connected to the servo motor 24. Pulse generator 2
The output of 8 is connected to the CPU 13. When the winding machine 6 starts operating, it performs the above-mentioned operation, but the output of the pulse generator 28 attached to the servo motor 24 is processed by the CPU 13, and the change in the number of pulses per rotation of the winding shaft 7 is processed by the CPU 13.
By superimposing the command from l3 on the command given to the adder 27, it is possible to compensate for a decrease in wire feeding speed due to a decrease in the number of wires 5 wound around the wire drum 17. Therefore, it is possible to always wind the wire with stable tension.

[Effects of the Invention] According to the winding device for a rotating electric machine of the present invention, the supply of the electric wire from the wire drum is carried out smoothly in synchronization with the rotation of the winding form, so that less shock is applied to the electric wire. , there is no miswinding of the wire in the winding form, and there are no problems such as insulation damage or local elongation of the wire, so it is possible to improve the quality of the coil and automate and speed up the winding work. .

[Brief explanation of drawings]

Fig. 1 is a block diagram of a winding device for a rotating electric machine showing an embodiment of the present invention, Fig. 2 is a block diagram of Fig. 1, Fig. 3 is a speed command diagram given to the winding shaft, and Fig. 4 is a diagram of the winding device of a rotating electric machine. A block diagram of a winding device showing another embodiment of the present invention, and FIG. 5 is a configuration diagram of a conventional winding device. 1... Winding form, 5... Electric wire, 7... Rotating shaft (winding shaft), 8.25... Speed control device, 9.24... Servo motor, 12.26... Servo Controller, 13...CPU. 14... Speed detector (pulse generator), 16... Tension adding mechanism, 17... Wire drum, 21... Air cylinder, 22... Tension detector, 27... Adder.

Claims (1)

[Claims] In a winding device for a rotating electric machine that manufactures a coil by attaching a winding form to a rotating shaft and rotating it by a drive motor and winding an electric wire wound around a wire drum around the winding form, the rotational speed of the winding form is set in advance. a speed detector for detecting the feeding speed of the wire to be wound around the winding form; and a speed detector located between the wire drum and the winding form for winding the electric wire around the winding form. means for commanding a speed similar to the speed of the waveform, and output signals from the speed detector and the tension detector. 1. A winding device for a rotating electrical machine, characterized in that the rotation of a wire drum drive motor is controlled so as to apply a constant tension to the wire being wound.