机械5

摘要 随着工业的发展，数控机床已经成为现代机械制造业的最主要的装备，这是一种趋势。我国数控机床在经历了30多年的发展，各项相关技术都取得了重大突破，机床种类越来越多，目前可提供1500种，覆盖超重型机床、高精度机床、沿高技术机床等领域，产品种类可与日、德、意、美等国并驾齐驱。但国产机床相对来说与发达国家之间的差距依然很大，体型大、笨重、精度不高等问题仍然是国产机床克服不了的。因此，微型化、高速化、高精度化、功能复合化等成为数控机床的一种发展趋势，本文介绍了一种可用于微型加工的微型数控钻铣床。 本文通过查阅大量国内外文献资料，经过比较和分析，设计了一台用于钻铣加工的微型数控钻铣床。本文介绍了机床总体布局、伺服控制系统、主传动系统、其他组件的选型以及设计计算，并分析了机床的功能及其应用范围。 本文介绍了一种微型数控钻铣床的设计方案，可适用于教学模型、培训上使用，让学生和初学者对数控钻铣床有一定的认识。 关键词：高精度；微型化；高速化；微型钻铣床； Abstract With i
ndustrial developme
nt,CNC machi
ne tools has become the mai
nstream of moder
n machi
nerya
nd equipme
nt ma
nufacturi
ng.Developme
nt of domestic CNC machi
ne tools has experie
nced 30years of ups a
nd dow
ns,has matured from growth,to provide 1500 ki
nds of CNC machi
ne tools,coveri
ng the super-heavymachi
ne tools,high-precisio
n machi
ne tools,machi
ne tools a
nd other areas alo
ng the high-tech product ra
ngewith the date,Germa
ny,Italya
nd the U
nited States to keep pace.But the gap betwee
n the domestic machi
ne toolwith relativelydeveloped cou
ntries is still great,large size,heavy,accuracyis still
not high domestic machi
ne tool ca
n
not overcome.Therefore,mi
niaturizatio
n,high-speed,high precisio
n,fu
nctio
nal complexa
nd so become a developme
nt tre
nd of CNC machi
ne tools. Byco
nsulti
ng a large
number of domestic a
nd foreig
n literature,through compariso
n a
nd a
nalysis,the use of SolidWorks software for micro CNC milli
ng machi
ne drilli
ng three-dime
nsio
nal modeli
ng,desig
ned a dedicated micro-drilli
ng a
nd milli
ng CNC milli
ng machi
ne drilli
ng systems.This article describes the overall layout of the machi
ne,the servo co
ntrol system,the mai
n tra
nsmissio
n system,aswell as other compo
ne
nts of the selectio
n of the desig
n calculatio
ns a
nd a
nalysis of the fu
nctio
n a
nd applicatio
n of the machi
ne. This article describes a CNC milli
ng machi
ne drilli
ng mi
niature desig
n,suitable for teachi
ng model,the use of trai
ni
ng,so that stude
nts a
nd begi
n
ners to CNC milli
ng machi
ne has a certai
n u
ndersta
ndi
ng. Keywords: High Precisio
n; mi
niaturizatio
n；High speed；micro-drilli
ng a
nd milli
ng machi
ne 目录 摘要II Abstract III 目录IV 1.前言1 1.1数控钻铣技术的发展趋势1 1.2国内外钻铣技术的发展现状3 1.2.1国外钻铣技术的现状3 1.2.2国内钻铣技术的现状4 1.3对我国先进数控技术发展战略的几点思考4 1.3.1先进的数控钻铣床技术是振兴我国工业的重要技术支撑4 1.3.2先进数控技术的发展和应用突出强调市场需求5 2.总体设计方案6 2.1基本参数6 2.2布局形式6 2.3整体结构方案7 3.伺服控制系统9 3.1伺服电机选型9 3.2交流伺服电动机伺服系统的组成10 3.3伺服电动机控制方式11 4.主传动系统组件及其它组件的选型12 4.1电主轴选型与校核12 4.2滚珠丝杠螺母副的选型16 4.3滑动导轨的选型17 4.4联轴器的选型18 5.其它部件的设计与计算19 5.1电主轴轴座设计19 5.2滚珠丝杠的动载荷计算与直径估计20 5.3轴承的计算21 5.4轴承座的设计22 5.5微型钻铣床立柱设计23 5.6微型钻铣床底座的设计24 6.整体结构设计26 7.总结27 参考文献28