MANUFACTURING METHOD OF ROTOR AND MANUFACTURING APPARATUS FOR ROTOR

To provide a manufacturing method of a rotor capable of preventing a relative positional relation between a shaft and a rotor core from being varied.SOLUTION: A manufacturing method of a rotor 10 includes the step of pressing a step part 133 of a shaft 13 from one side in a center axis line directio...

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Bibliographic Details
Main Authors HARA YUTAKA, KAWASHIMA TAKAAKI, SAITO MARIKO
Format Patent
LanguageEnglish
Japanese
Published 07.01.2021
Subjects
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
DYNAMO-ELECTRIC MACHINES
ELECTRICITY
GENERATION
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Summary:To provide a manufacturing method of a rotor capable of preventing a relative positional relation between a shaft and a rotor core from being varied.SOLUTION: A manufacturing method of a rotor 10 includes the step of pressing a step part 133 of a shaft 13 from one side in a center axis line direction by a first pressing member 201, and pressing an end face 11a of a rotor core 11 at one side in the center axis line direction from one side in the center axis line direction by a second pressing member 202. The manufacturing method of the rotor 10 also includes the step of fixing the shaft 13 to the rotor core 11 through hydroforming of pressure-welding a first cylindrical portion 130 to an inner peripheral surface 110a of a shaft insertion hole 110 in a state where the shaft 13 and the rotor core 11 are pressed.SELECTED DRAWING: Figure 3 【課題】シャフトとロータコアとの相対的な位置関係にばらつきが生じるのを防止することが可能なロータの製造方法を提供する。【解決手段】このロータ１０の製造方法は、シャフト１３の段差部１３３を、第１押圧部材２０１により中心軸線方向の一方側から押圧するとともに、第２押圧部材２０２によりロータコア１１の中心軸線方向の一方側の端面１１ａを中心軸線方向の一方側から押圧する工程を備える。また、ロータ１０の製造方法は、シャフト１３とロータコア１１とが押圧された状態で、シャフト挿入孔１１０の内周面１１０ａに第１筒状部分１３０を圧接させるハイドロフォーミングによって、シャフト１３をロータコア１１に固定する工程を備える。【選択図】図３
Bibliography:Application Number: JP20190114521