高速数控车床电主轴过盈配合仿真分析及性能评估

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中图分类号：TH122 文献标志码：A 文章编号：1671-5276（2025）03-0139-06

Interference Fit Simulation Analysis and Performance Evaluation of High Speed CNC Lathe Spindle

WANG Jianjun1a，1b，WANG Yingla，1b，WANG Shuai²，YANG Hongjun³，MU Longtaola，1b， ZHANG Xiaoye4 （1.a.Collgeof Mechanical Engineering；b.Xianyang High-End CNC Machine TolKey Components Engineeing Technology Research Center， Shaanxi Polytechnic Institute，Xianyang 712Oo0， China; 2. Xi'an Jingdiao Precision Machinery Engineering Co.，Ltd.，Xi'an，71O061， China; 3. Baoji Machine Tool Group Co.，Ltd.，Baoji 721013，China； 4.Aerospace Propulsion Technology Research Institute，Xi'an 71O1Oo，China）

Abstract：Researchontheinterferencefitofahigh-speedCNClatheelectricspindlerotorwasconductedtobreedideasforits simulationdesign.Thecoldshrinkfitfunctionoftheanalysissoftwarewasapliedtosolvethereductionindiameteroftherotor sleeveafter thermal expansionasembly，andtheeffectsof temperatureriseandcentrifugal forceoncontactpressure were analyzed.Therotationalspeed，transmited torquevalue，andsafetyfactorwereobtainedundertwoworking modes，andthe interference fit performance was evaluated.

Keywords：electric spindle； interference fit；cold shrink fit；contact pressure；transmitted torqut

0 引言

过盈配合能够传递较大转矩，承受变载荷和振动，且转动平衡易于控制，因此是高速机床行业中电主轴转子与主轴连接的理想方式。（剩余7268字）