CA6140车床纵向系统设计说明书 

综合作业 姓 名：专 业：机电一体化指导老师： 设计题目：普通车床数控化改造 尚浪 黄新燕 2011年 5 月 5 日 - 1 -

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

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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

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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、多变零件的加工问题，且能稳定产品的加工质量，大幅度地提高生产效率。但从目前企业面临的情况看，因数控机床价格较贵，一次性投资较大使企业心有余而力不足。我国作为机床大国，拥有大量的普通机床。因此，对普通机床数控化改造不失为一种较好的选择。

【关键词】

机电一体化 开环控制纵向进给系统设计 滚珠丝杠螺母副 步进电动机

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正文

前言部分

计算机技术和先进制造技术的发展，推动了机械加工在各方面的变革和进步。典型的数控机床已成为现代加工器械的鲜明代表。考虑到企业的生产效率和投入成本，普通车床的数控化改造将是一个极为有意义的课题。

普通车床数控改造的设计是机电一体化系统课程设计的主要内容。作为机械设计制造及其自动化专业的学生，这次设计是本人在学习完“机电一体化系统设计”、“数控机床”等专业课程之后进行的一个重要的实践性教学环节。通过综合运用所学的机械、电子、自动控制、微机等知识，进行一次机电结合的全面训练，以培养独立分析问题，解决问题和进行机电一体化系统初步设计的能力。

由于学生水平有限，在设计乃至计算过程中难免会有一些错误，望各位老师及同学指点赐教。不胜感激。

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