数控车床主轴组件设计.docx

编号：时间：2021年x月x日书山有路勤为径学海无涯苦作舟页码：第-42-页第-42-页毕业论文（设计）机电工程系级机电一体化专业题目：数控车床主轴组件设计学生姓名：指导教师：班级：2008年06月10日目录绪论························································4一、设计题目及参数············································51.1题目·················································51.2参数·················································5二、主轴的要求及结构·········································52.1主轴的要求···········································52.1.1旋转精度··········································52.1.2静刚度··············································62.抗振性·················································62.1.4温升和热变形········································62.耐磨性·················································72.1.6材料和热处理········································72.2主轴的结构············································7三、主传动系统变速方式········································8四、机床夹具的确定··········································10五、主轴主要参数的计算及校核·································115.1主轴主要参数的计算···································115.1.1主轴前端直径D1····································125.1.2主轴内径d·········································125.1.3主轴前端悬伸量确定·······························135.1.4主轴跨距的确定····································145.2轴的刚度计算········································15六、主轴轴承的选择···········································166.1轴承的选型··········································166.1.1角接触球轴承·····································176.1.2圆柱滚子轴承·······································196.1.3圆锥滚子轴承·······································166.1.4深沟球轴承·········································196.2轴承间隙调整和预紧···································19七、主轴箱箱体的设计·········································207.1主轴箱的概述·········································207.2主传动的设计········································207.2.1驱动源的选择······································207.2.2传动轴的估算···································