直驱式A/C双摆角重型铣头力学分析  

Mechanics analysis of direct drive A/C bi-rotary heavy milling head

作　　者：王泽民 李天箭[2] 陈时锦[2] 付拓取[2] 

机构地区：[1]齐齐哈尔二机床(集团)有限责任公司,黑龙江齐齐哈尔161005 [2]哈尔滨工业大学精密工程研究所,黑龙江哈尔滨150001

出　　处：《机械设计》2012年第1期83-86,共4页Journal of Machine Design

基　　金："高档数控机床与基础制造装备"科技重大专项资助项目(2009ZX04011-011)

摘　　要：基于直驱式A/C双摆角重型铣头结构几何模型建立了整机有限元模型,采用杆单元等效模拟连接轴承,并对其进行了力学分析。双摆角铣头在工作过程中,其固有频率和电主轴末端位移随着A轴摆角的摆动而波动,并且整机性能由其结构薄弱环节C轴组合轴承决定。Based on geometrical model of the direct drive A/C hi-rotary heavy milling head structure, the finite element model of entire machine was established. By employing the link element equivalence method to simulate the connection bearings, the mechanical analysis was carried out. During the operation of hi-rotary heavy miUing head, its natural frequency and the displacement on the end of the high frequency spindle fluctuate with the shifting of the A-axis swing angle, the overall performance is determined by the C-axis combination bearing that is the weak link of the whole structure.

关 键 词：双摆角铣头 轴承等效 有限元方法 力学分析 

分 类 号：TH123[机械工程—机械设计及理论]