微特电机 ›› 2021, Vol. 49 ›› Issue (9): 53-55.

• 生产技术 • 上一篇    下一篇

转子薄壁保护套的加工方法及仿真分析

孔令光, 曹德伟, 杨健, 孙俊婷   

  1. 中国电子科技集团公司第二十一研究所,上海 200233
  • 收稿日期:2021-02-01 出版日期:2021-09-28 发布日期:2021-09-29

Machining Method and Simulation Analysis of Rotor Thin-Wall Protective Sleeve

KONG Ling-guang, CAO De-wei, YANG Jian, SUN Jun-ting   

  1. No.21 Research Institute of CETC, Shanghai 200233, China
  • Received:2021-02-01 Online:2021-09-28 Published:2021-09-29

摘要: 采用工艺头定位的方式加工转子保护套,在精车时外圆与内孔一次装夹完成加工,保证了零件内外圆的同心度及内孔圆度。在加工转子保护套时分粗车、精车两道工序。精车前进行去氢退火和去应力退火热处理,可以去除工件内的加工残余应力,减小其变形量。对电机转子护套的强度进行有限元分析,结果证实0.5 mm厚度的钛合金转子保护套,采用0.01 mm过盈量与磁钢外圆配合时满足电机的强度要求。

关键词: 转子保护套, 工艺头定位, 热处理, 有限元分析

Abstract: The locating pad to machine was used for the processing of rotor protective sleeve, the excircle and the inner bore of workpiece were once clamping completed when finishing turning to ensure the inner and outer circle concentricity and the roundness of the inner bore. Rotor protective sleeve processing is divided into rough turning and finishing turning. The dehydrogenation annealing and relieved-stress annealing were used before finishing turning to remove the processing residual stress and reduce the amount of deformation. Finite element analysis was carried on the strength of motor rotor protective sleeve. The results confirmed that the titanium alloy protective sleeve with a thickness of 0.5 mm meets the strength requirements when 0.01 mm interference was used to match the magnetic steel cylindrical.

Key words: rotor protective sleeve, processing head positioning, heat treatment, finite element analysis

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