单片机控制的数控车床实验台毕业设计.doc
南通职业大学毕业设计(论文)课题题目:单片机控制的数控车床实验台系科:机械工程系学生姓名:学号:专业:机电一体化指导教师:完成时间:2008.5.17摘要随着数控技术的飞速发展,机械制造业的生产方式、产品结构、发生了深刻的变化。在我国数控机床的发展过程中,MCS-51系列单片机在数控技术领域中得到广泛应用,经济型数控系统大多采用MCS-51系列单片机。本文在分析了数控车床的特点和实验台应该具备的功能后,确定采用基于单片机控制的系统总体结构方案。设计方案由系统硬件结构和系统软件结构两部分组成。关键词:数字控制,单片机系统,数控车床ABSTRACTWiththedevelopmentofNC,therehavebeenmanychangesinmechanicalindustry,suchasproducingmethodandstrutureofproduct.MCS-51singlemicrocomputershavebeenusedwidelyinNC,especiallyinecomicalNCequipmentsinchina.BasedonMCS-51singlemicrocomputers,theNClathetrainingequipmentisdesignedwithlessmoneyfortheprofessionalNCcourses.AfteranalyzingthefeatureofNClatheanddefiningthefunctionsoftrainingequipment,asystemgeneralschemeisassumedbyhardwarearchitectureandsoftwarearchitecture,whichusesMCS-51singlemicrocomputer.KEYWORDS:trainingequipment,numericcontrol,singlemicrocomputersystem目录1引言1.1数控机床的产生与发展1.2我国数控机床的发展概况1.3本课题研究的背景2数控车床实验台的性能要求2.1数控机床的组成及工作原理2.1.1数控机床的组成·······································································2.2.2数控机床的工作原理·································································2.2数控车床的特点2.3数控车床实验台的方案设计2.3.1普通车床数控化改造的条件······················································2.3.2普通车床数控化改造的一般步骤·················································2.3.2(1)主要机械部件改造··························································2.3.2(2)主传动的数控改造····························································2.3.2(3)进给传动的数控改造·······················································2.3.3总体方案设计论证与确定···························································2.3.3(1)运动方式的确定····························································2.3.3(2)行机构传动方式的确定····················································2.3.3(2)运动方式与伺服系统的选择··············································2.3.3(3)机械传动方式的确定·······················································