摘要本设计是把普通数控车床改造成经济型数控车床。经济型数控车床就是指价格低廉、操作使用方便、比较适合我国国情的，动化的机床。采用数控机床，可以降低工人的劳动强度，节省劳动力（一个人可以看管多台机床），减少工装，缩短新产品试制周期和生产周期，可对市场需求作出快速反应。在设计的时候具体进行了详细的各部件的选型和计算。比如：导轨的设计选型、滚珠丝杠螺母副的选型与计算。还进行了进给传动系统的刚度计算、进给传动系统的误差分析、驱动电机的选型计算、驱动电机与滚珠丝杠的联接、驱动电机与进给传动系统的动态特性分析等。关键词:车床、数控、传动系统AbstractThisprojectistoalterthecommonlatheintotheeconomicallathe.Theeconomicallatheisaadvancedandroboticizedlathethathaslowprice,convenientoperation,andadapttothesituationofourcountryandhasinstalledcncsystem.Duringtheprojectweparticularlydealtwiththechoiceandcalculationofeveryassembly.Suchas:Thechoiceandcalculationofguideway,ballscrewnutpairanddriveelectromotor.Caculatetheinflexibilityoffeedtransmissionsystem.Analysetheerroroffeedtransmissionsystem.Junctionbetweendriveelectromotorandballscrew.Dynamicanalysisofdriveelectromotorandfeedtransmissionsystem.Keywords:LatheCNC；TransmissionSystem目录摘要.....................................................................1Abstract....................................................................1目录.....................................................................1第1章绪论...............................................................11.1数控车床简介..........................................................11.2数控车床发展现状......................................................11.3数控车床在生产中的应用................................................2第2章数控车床设计概述...................................................32.1电动机的选择............................................................42.2电动机类型和结构型式的选择..............................................4第3章进给伺服系统概述...................................................5第4章横向进给系统的设计计算..............................................74.1设计参数..............................................................74.1.1设计参数：....................................................74.1.2切削力及其切削分力计算........................................74.1.3轨摩擦力的计算................................................74.1.4算滚珠丝杠螺母副的轴向负载力..................................84.1.5定进给传动链的传动比i和传动级数..............................84.1.6珠丝杠的动载荷计算与直径估算..................................84.2校核...................................................................94.2.1珠丝杠螺母副承载能力校核......................................94.2.2计算器械传动的刚度...........................................104.2.3驱动电机的选型与计算.........................................104.2.4械传动系统的动态分析.........................................124.2.6确定滚珠丝杠螺母副的精度等级和规格型号.......................13第5章进给系统的结构设计................................................145.1滚珠丝杠螺母副的设计...................................................145.2齿轮传动副的设计.......................................................155.3齿轮箱的设计...........................................................165.4床身及导轨.............................................................165.5中间轴的设计.....................
