公开(公告)号：US20160163349A1

公开(公告)日：2016-06-09

申请号：US14863764

申请日：2015-09-24

Applicant: Nidec Corporation

Inventor： Atsushi YAWATA ,  Shigeki HORIKI ,  Ryohei MATSUMOTO

IPC: G11B19/20 ,  H02K15/03 ,  B23K26/351 ,  G11B33/02 ,  B23K26/00 ,  B23K26/03

CPC classification number: G11B19/2009 ,  B23K26/0093 ,  B23K26/03 ,  B23K26/351 ,  B23K26/352 ,  B23K2101/34 ,  B23K2101/36 ,  B23K2103/04 ,  B23K2103/10 ,  H02K15/03

Abstract: A method of manufacturing a base unit of a spindle motor includes the steps of: defining a base plate including a support fitting portion; fitting a support to a hole portion passing through the support fitting portion; measuring an inclination of the support fitting portion; calculating a laser irradiation area and a laser irradiation output based on the inclination; irradiating the support fitting portion with a laser beam; and measuring the inclination of the support fitting portion again. The base plate is made of a metal, and is defined by press working, casting, or forging. The support is fitted to the hole portion by crimping, press fitting, or welding. This method reduces the inclination of the support fitting portion, thereby reducing a distortion of the support, which serves as a rotation center of an access portion.

Abstract translation: 主轴电动机的基座的制造方法包括以下步骤：限定包括支撑配合部的基板; 将支撑件装配到穿过所述支撑配合部分的孔部分; 测量所述支撑配件部分的倾斜度; 基于倾斜度计算激光照射区域和激光照射输出; 用激光束照射支撑配件部分; 并再次测量支撑配件部分的倾斜度。 基板由金属制成，通过冲压加工，铸造或锻造定义。 支撑通过压接，压配或焊接装配到孔部分。 该方法减小了支撑配合部的倾斜度，从而减小了作为进入部的旋转中心的支撑的变形。