A装配图
摘要
近年来，我国机械制造业的自动化生产技术有了较快的发展。据统计，生产过程中材料、半成品的输送、定向及设备的上、下料等辅助工序所花的费用约占全部加工费用的三分之一，所花时间约占全部加工时间的三分之二以上。为了解决上述问题，发展了一种用计算机以数字指令方式控制的数字控制机床。数控机床的应用几乎已扩展到所有加工领域，许多工厂为了适应产品的频繁更新，提高加工精度、降低生产成本、缩短产品交货周期和减轻劳动强度等目的，在中等批量、甚至大批量生产中也应用了数控机床，即使在5000件的生产批量下加工结构形状不太复杂的零件，使用数控机床也能取得良好的经济效益。
320mm数控车床为全能型加工车床，可进行多次重复循环加工，特别适合于汽车、石油机械、军工等多种行业的机械加工，主要用于轴类、盘类的精加工和半精加工，可以加工内、外圆柱表面、锥面、车削螺纹、镗孔、铰孔以及各种曲线回转体。可根据用户要求配置手动、电动、液压卡盘和手动、电动、液压尾座等。机床防护有全防护、封闭防护两种形式。
关键字：数控车床；精加工；液压尾座
Abstract
In recentyears,the automation production technique of the our countrymachine manufacturing industrycontain quicker development.According to the covariance,material in the production line,the semi-processed goods transport,definite direction and equipments of up,bottom anticipate the etc.,the expenses that the assistancework preface spend about has all 1/3 of process the expenses,time spend about has all 2/3 of process time is above.For resolving the above-mentioned problem,produce a kind of numeral control tool machine that controls bynumerical instructionwith the calculator.The application that number controls the tool machine almost has alreadyexpand to all process the realm.Manyfactoryfor the sake of the multifarious renewal of the orientation product,the exaltation processes the accuracy,lowers the production cost and shortens the product to deliver goods the period and ease to labor the strength etc.purpose,also applied the number to control the tool machine inwinwait batch quantity,even mass-produce,even process the not that complicated spare parts of the structure shape under 5000 pieces production batch quantities,using the number to control the tool machine also can obtain good economic performance.
320 mm the number controls the lather to process the lather for the omnipotent type,can carryon manyrepetitions to process circularly,special suitable for automobile,petroleum machine,the soldierwork etc.the machine ofvarious profession process,mainlyusing for stalk,dish's process to processwith the half,can process inside,the outside cylinder surface,face,the car pares thread,bore of，bore of andvarious curves turn-over body.Can request to install to move according to the customer,dynamoelectric,the liquid presses the card dish and hands to move,dynamoelectric,the liquid presses the tail.The tool machine protection containwhole protection,close two kinds of forms of protection.
Keywords：The number controls；the lather to process；the liquid to press the tail
目录
摘要I
Abstract II
第1章绪论1
1.1课题背景及目的1
1.2国内外研究现状及发展趋势2
1.2.1数控系统的发展趋势2
1.2.2我国数控车床的研究现状及发展趋势2
第2章320mm数控车床7
2.1 320mm数控车床简介7
2.2机床主要技术参数和连接尺寸8
2.3机床精度的选择8
2.4电动机的选择10
2.4.1选择电动机类型10
2.4.2选择电动机容量10
2.4.3确定电动机的转速11
2.5无级变速的主传动系统设计11
2.6主轴组件的基本要求11
2.6.1旋转精度12
2.6.2静刚度12
2.6.3抗震性12
2.6.4温升和热变形13
2.6.5耐磨性13
第3章数控机床的主轴及其机械结构14
3.1对主轴驱动的要求14
3.1.1主传动要有宽的调速范围及尽可能实现无级变速14
3.1.2功率大14
3.1.3动态响应性要好15
3.1.4精度高15
3.1.5旋转轴联动功能15
3.1.6恒线速度切削功能15
3.2初选主轴直径15
3.3传动轴直径18
3.4确定带轮直径18
3.5普通V带的设计18
第4章轴承选用与寿命计算27
4.1轴承选用27
4.2轴承的寿命计算28
4.3轴承的润滑与密封28
4.3.1主轴滚动轴承的润滑29
第5章箱体的设计31
5.1箱体的结构特点及技术要求31
5.1.1箱体的结构要求31
5.1.2箱体的主要技术要求31
5.2壁厚的选择32
结论33
致谢34
参考文献35
主轴箱体
目录
设计参数
摘要
字数
