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Method of making rotors for hybrid stepping motor

A stepper motor and manufacturing method technology, applied in the manufacture of stator/rotor bodies, electrical components, electromechanical devices, etc., can solve the problems of rising manufacturing costs of hybrid stepper motors

Active Publication Date: 2008-01-09
SHINANO KENSHI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the operation of grinding the outer peripheral surface of the rotating body part is performed as a completely different process from the pressing process. The outer peripheral surface of the rotating body part is coated with a resin that prevents the use of hair and hardened, and then the grinding process is performed. Because it is necessary, it is the reason for the increase in the manufacturing cost of the rotor and the manufacturing cost of the hybrid stepping motor

Method used

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  • Method of making rotors for hybrid stepping motor
  • Method of making rotors for hybrid stepping motor
  • Method of making rotors for hybrid stepping motor

Examples

Experimental program
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Embodiment Construction

[0027] The best embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0028] 1 shows a process of punching a workpiece 18 such as a silicon copper plate to form a magnetic core plate 20 with small teeth 14 formed on the outer periphery in the rotor manufacturing process of the hybrid stepping motor of the present invention.

[0029] In this embodiment, the punching manufacturing process for forming the magnetic core plate 20 with a plurality of small teeth 14 on the outer periphery with high precision is set as a small tooth hole punching process ( FIG. 1A ) and the process of punching out the outer shape of the workpiece 18 ( FIG. 1B ) in accordance with the positions of the end faces of the small teeth 14 of the magnetic core plate 20 .

[0030] The small tooth hole punching process of stamping small tooth holes on the workpiece 18, as shown in FIG. The inner surface of 14 is consistent with the small tooth h...

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Abstract

Provided is a rotor for a hybrid stepping motor only by stamping a material to be worked using a die to form a core plate at a prescribed precision, with no polishing of a rotor part. The manufacturing method in which a core plate (20) is provided with many small teeth (14) on the outer peripheral edge by stamping with a die, which comprises a hole through which a rotor shaft is penetrated as well. A prescribed number of core plates (20) are stacked for integration to form a rotor part. The rotor shaft is inserted in the rotor for assembly, is characterised in that the prescribed number of core plates are stacked for integration to form the rotor part, and after the rotor shaft is inserted to the rotor part, the rotor part is built into a motor without polishing the outer peripheral surface of the rotor part.

Description

technical field [0001] The invention relates to a method for manufacturing a rotor used in a hybrid stepping motor. Background technique [0002] The rotor that can be used in a hybrid stepping motor, as shown in FIG. 11, is formed by setting a rotor shaft 12 through a rotor part 10. The rotor part 10 has a magnetic core with a plurality of small teeth stacked on the outer peripheral side. The board is integrally formed. The magnetic core plate is formed by punching a workpiece such as a silicon copper plate with a die. The upper and lower sides of the magnetic core plate are respectively provided with a convex part and a concave part for riveting and fixing the magnetic core plate after being stacked. By making the convex part and the concave part fit and stack the magnetic core plate, the positions of the small teeth are overlapped, so that the The magnetic core plate is integrated to form the rotating body part 10 . [0003] However, in the hybrid stepping motor, the d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K15/02H02K37/00H02K37/04
Inventor 中込真二星野正好
Owner SHINANO KENSHI