JPH03285538A - Manufacture of rotor for motor - Google Patents

Abstract

PURPOSE:To manufacture a motor with structural components having same external angle and outer diameter employed for common parts as many as possible, and motor output, output shaft profile and sensor to be used are selected randomly, by machining divide sections of a rotor and then combining the sections into the rotor for motor. CONSTITUTION:A rotor comprises an output section 1, a yoke section 2 and a sensor section 3. When same types of yoke sections 2 are prepared or yoke sections 2', 2'' are prepared, it is not required to manufacture a stepped rotor every time but the stepped rotor can be stocked previously, and thereby cost can be reduced and modification of specification can be dealt with quickly. Since a motor can be manufacture by employing structural components having identical external angle and outer diameter as common as possible and by freely selecting the motor output, output shaft profile and sensors to be used, a rotor which is quite advantageous in view point of cost and flexible manufacturing can be obtained.

Description

[Detailed Description of the Invention] "Field of Industrial Application" The present invention is designed to operate a motor with the same outer angle and outer diameter dimensions, by reusing as many structural parts as possible, and arbitrarily selecting the motor output, output shaft shape, and sensor used. The present invention relates to a rotor for an electric motor that can be manufactured and is very advantageous in terms of cost and ease of manufacturing in a wide variety of small quantities.

``Conventional technology'' When standardizing electric motors, structural parts have been reused. In this case, a method is often used to serialize the output of the motor by keeping the outside angle and outside diameter dimensions the same and changing the axial length.

Among structural components, the stator can be relatively easily accommodated by stacking identical core plates and changing the stacking thickness. On the other hand, since the rotor is machined, it was necessary to recreate the rotor each time the specifications changed.

``Problem to be solved by the invention'' If the specifications are changed each time, the cost of machining increases by 1~, and even if you keep making them, the cost of each one increases. A stepped rotor is more expensive and takes longer to deliver.

"Means for Solving the Problems" In the present invention, each part of a rotor is cut and then combined to form a rotor of an electric motor.

"Function" It is possible to stock up each part of the rotor, reducing the cost of each part, and by combining the parts, a rotor of any shape can be quickly manufactured.

"Example" Fig. 1 shows an exploded perspective view of the rotor according to the present invention, and Fig. 2 shows an exploded perspective view of the rotor according to the present invention.
The figure shows an assembled perspective view of the rotor. Broadly divided into 1
...output part, 2...yaw part, 3...sensor part, and if you prepare several kinds of 2゛2°゛ for the length of yoke part 2, There is no need to manufacture a stepped rotor each time, and it is possible to stock up on manufacturing, reducing costs and making it possible to quickly respond to changes in specifications.

[Effects of the Invention] According to the present invention, parts that can be manufactured in large quantities and can be used in a wide variety of models can be manufactured in large quantities, and the cost of the rotor can be reduced and the delivery time can be shortened.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view of a motor rotor according to the present invention, and FIG. 2 is an assembled perspective view of the rotor. 1...Output part, 2.2゛, 2°°...Yoke part, 3
...Sensor section.

Claims (2)

[Claims] (1) The rotor of an electric motor is composed of an output part (1), a yoke part (2), and a sensor part (3), and the length of the rotor is changed according to the output of the motor, and the length of the stator of the motor is A method of manufacturing an electric motor rotor, characterized in that the output of the electric motor can be changed by changing. (2) The output part (1) and the sensor part (3), which have arbitrary shapes, are provided with shafts with key grooves that have a precision fit, and the yoke part (2), which has an arbitrary shape, is provided with a key that matches each. A method of manufacturing an electric motor rotor, characterized in that the shape of an output part (1) and a shape of a sensor part (3) of a rotor can be changed by providing grooves and holes having fitting precision and adjusting the shapes thereof.