[1]郭策,孙庆鸿.高速高精度数控车床主轴系统的热特性分析及热变形计算[J].东南大学学报(自然科学版),2005,35(2):231-234.[doi:10.3969/j.issn.1001-0505.2005.02.015]
 Guo Ce,Sun Qinghong.Analysis of thermal characteristics and thermal deformation of high-speed spindle system in NC precision lathe[J].Journal of Southeast University (Natural Science Edition),2005,35(2):231-234.[doi:10.3969/j.issn.1001-0505.2005.02.015]
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高速高精度数控车床主轴系统的热特性分析及热变形计算()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
35
期数:
2005年第2期
页码:
231-234
栏目:
材料科学与工程
出版日期:
2005-03-20

文章信息/Info

Title:
Analysis of thermal characteristics and thermal deformation of high-speed spindle system in NC precision lathe
作者:
郭策1孙庆鸿2
1 南京航空航天大学机电学院, 南京 210016; 2 东南大学机械工程系, 南京 210096
Author(s):
Guo Ce1 Sun Qinghong2
1 College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
2 Department of Mechanical Engineering, Southeast University, Nanjing 210096, China
关键词:
主轴系统 热分析 热变形 散热筋 有限元法
Keywords:
spindle system thermal analysis thermal deformation fins finite element method
分类号:
TG502.15
DOI:
10.3969/j.issn.1001-0505.2005.02.015
摘要:
基于现代机床热特性设计要求,利用有限元法对某型高速高精度数控车床主轴系统进行了热特性理论建模与分析.结果表明,当主轴转速为8 000 r/min时,系统经3 h达到热平衡,其最高温升位于前轴承内圈处.进一步计算主轴系统的热变形,并通过对主轴箱体散热筋板的合理布局和优化设计,有效降低了主轴头部的径向跳动和端跳误差,使其小于2 μm,均能满足设计要求.特别是主轴头部的径向跳动误差经优化设计后进一步减小为1.55 μm,优化效果非常明显.
Abstract:
In order to meet the demand of thermal design of modern machine tools, thermal model and thermal characteristics of high-speed spindle system in numerical control(NC)precision lathe were studied in detail using finite element method(FEM). The results show that the system reaches a thermal balance after 3 h while it is rotating at 8 000 r/min and the highest temperature is located in the inner-ring of the front bearings. Furthermore, the thermal deformations of the spindle head were calculated. Through reasonable arrangement and optimal design of the fines, the radial and axial deformation of the spindle head can be reduced to less than 2 μm, which satisfies the demand of manufacturing accuracy. Especially, the radial deformation of the spindle head is around 1.55 μm, the optimization effect being remarkable.

参考文献/References:

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备注/Memo

备注/Memo:
基金项目: 国家自然科学基金资助项目(50375026).
作者简介: 郭策(1971—),女,博士,讲师,guozc@nuaa.edu.cn.
更新日期/Last Update: 2005-03-20