机械5

高精度车铣复合机床电主轴部件设计 摘要 车铣复合机床是近代工业发展的标志，基本实现了高速化、高精度、多功能的现代化要求；其中必不可少的也尤为重要的部件就是此次设计的主要结构电主轴，其精度直接影响机床的加工精度，制造业为满足市场需求，必须要开发研究更先进的、更自动化的电主轴部件。 此次设计完成了电主轴系统设计，包括电机轴承的选型以及轴承使用寿命的计算、主轴各段尺寸以及主轴强度刚度的校核、装配二维图、主轴零件图和箱体零件图，设计了主轴结构，以及主轴工作线上的法兰盘、隔套、螺母等零部件，另外还设计了需要保证机床正常运行的保护设置，密封装置和迷宫环等，箱体的冷却降温结构设计等。 本次设计使用二维计算机设计软件AutoCAD进行了电主轴部件结构的装配图设计和使用三维设计软件SolidWorks进行了箱体三维建模。本设计提高了机床加工精度，实现了机床的高速性能，充分体现出了多能化的车铣复合技术。 关键词：车铣复合机床；电主轴设计；主轴；结构设计 ABSTRACT CNC Tur
n-mi
nllli
ng lathe is the symbol of the moder
n i
ndustrial developme
nt， It has basically realized the moder
nizatio
n requireme
nts of high speed, high precisio
n a
nd multi-fu
nctio
n; the esse
ntial part of which is the mai
n compo
ne
nt of this desig
n is the mai
n structure electric spi
ndle. Its precisio
n directly affects the machi
ni
ng precisio
n of the machi
ne tool. I
n order to meet the market dema
nd, the ma
nufacturi
ng i
ndustry must develop more adva
nced, more perso
nalized, a
nd more self. The motorized electric spi
ndle. This desig
n has completed the desig
n of the electric spi
ndle system, i
ncludi
ng the selectio
n of the motor beari
ng a
nd the calculatio
n of the beari
ng life, the dime
nsio
n of the spi
ndle a
nd the checki
ng of the stiff
ness of the spi
ndle stre
ngth, the assembly two-dime
nsio
nal diagram, the mai
n shaft part drawi
ng a
nd the box part drawi
ng, the structure of the spi
ndle, the fla
nge, the spacer, a
nd the
nut o
n the spi
ndle worki
ng li
ne. A
nd other compo
ne
nts, i
n additio
n, we also desig
ned the protectio
n setti
ngs to e
nsure the
normal operatio
n of machi
ne tools, seali
ng devices a
nd labyri
nth ri
ngs, a
nd so o
n. This desig
n uses the two-dime
nsio
nal computer desig
n software AutoCAD to carry out the assembly drawi
ng desig
n of the electrical spi
ndle compo
ne
nt structure a
nd the 3D modeli
ng of the box by usi
ng the 3D desig
n software SolidWorks. This desig
n improves the machi
ni
ng accuracy of machi
ne tools, realizes the high speed performa
nce of machi
ne tools, a
nd fully embodies the tech
nology of multi tur
n milli
ng a
nd milli
ng. Key Words：CNC Tur
n-milli
ng lathe；Motor Spi
ndle；Machi
ne tool； Structural desig
n 目录 摘要I ABSTRACT II 1绪论1 1.1选题的目的、背景和意义1 1.2研究现状和发展趋势1 1.3研究的主要内容5 2电主轴系统设计方案6 2.1电主轴设计要求及选择方案6 2.2主轴部件的组成及要求选型7 3电机、轴承、主轴的选型及参数确定8 3.1电机的选择8 3.2主轴各径向尺寸的确定10 3.3轴承的选择12 3.4主轴轴向各尺寸确定13 3.5主轴各参数计算14 3.6轴承寿命计算16 4电主轴结构设计18 4.1轴的结构设计18 4.2箱体的结构设计23 4.3总体结构设计25 5结论27 参考文献28 附录1：外文翻译29 附录2：外文原文38 致谢43