车床纵向系统设计说明书.doc

- PAGE 1 - 综合作业 姓 名：尚浪 专 业：机电一体化 指导老师：黄新燕 设计题目：普通车床数控化改造 2011年 5 月 [ 目录 摘要及关键词············································································3 正文·······························································································4 前言部分·······················································································4 本论部分·······················································································5 第1章 绪论····················································································5 1.1 机床机电一体化改造总体方案的设计··············································5 1.2 开环伺服进给系统机械部分设计····················································5 第2章 机床机电一体化改造总体方案的设计·······························6 2.1 课程设计任务书············································································6 2.2 总体方案设计···············································································7 第3章 开环伺服进给系统机械部分设计·······································9 3.1 确定系统脉冲当量·········································································9 3.2 计算切削力···················································································9 3.3 滚珠丝杠螺母副的计算选型（纵向进给丝杠）·····································9 3.4 齿轮传动比计算···········································································14 3.5 步进电动机的计算和选型······························································14 第4章 机械传动机构的调整和结构的简要说明··························19 4.1 丝杠进给速度的调节···································································19 4.2 轴向的预紧力的调整及定位··························································19 结论部分······················································································19 设计体会····················································································20 参考文献····················································································21 摘要及关键词 【摘要】 数控机床作为机电一体化的典型产品，在机械制造业中发挥着巨大的作用，很好地解决了现代机械制造中结构复杂、精密、批量小、多变零