三．设计内容
1.总体结构设计
2.主要传动部件的设计计算
3.电气控制部分设计
1）硬件电路设计
2）控制软件设计
4.编写设计说明书
四．设计任务
1.模拟整体设计方案
2.机械结构装配图一张（A0图）
3.控制系统设计
要求完成一张A1图纸的硬件电路设计Байду номын сангаас作，设计控制系统的主要软件流程，对RAM和I/O接口芯片进行详细编程。
第7章 参考文献···············································30
第1章设计任务
一．设计任务
题目：数控车床自动回转刀架机电系统设计
任务：设计一台四工位的卧式自动回转刀架，适用于C616或C6132经济型数控车床。
二．设计参数
推荐刀架所用电机的额定功率为90W，额定转速为1440r/min,换刀时要求刀架转动的速度为30r/min。
第1章 设计任务···············································3
1.1 设计总体任务·············································3
1.2 设计参数·················································3
经济型数控是我国80年代科技发展的产物。这种数控系统由于功能适宜，价格便宜，用它来改造车床，投资少、见效快，成为我国“七五”、“八五”重点推广的新技术之一。十几年来，随着科学技术的发展，经济型数控技术也在不断进步，数控系统产品不断改进完善，并且有了阶段性的突破，使新的经济型数控系统功能更强，可靠性更稳定，功率增大，结构简单，维修方便。由于这项技术的发展增强了经济型数控的活力，根据我国国情，该技术在今后一段时间内还将是我国机械行业老设备改造的很好途径。对于原有老的经济型数控车床，特别是80年代末期改造的设备，由于种种原因闲置的很多，浪费很大；在用的设备使用至今也十几年了，同样面临进一步改造的问题通过改造可以提高原有装备的技术水平，大大提高生产效率，创造更大的经济效益。
第5章 电气控制部分设计·····································12
5.1 中央处理单元MS-89C51·····································12
5.1.1MCS-51单片机的结构和工作原理·······················12
5.4 硬件电路设计·············································25
5.5 控制软件设计·············································27
第6章 总结···················································29
4.1 蜗杆副的设计计算···········································8
4.1.1蜗杆的选型··············································8
4.1.2蜗杆副的材料···········································8
4.设计说明书
要求清楚地叙述整个设计过程和详细的设计内容，包括总体方案的分析，比较和确定机械系统的结构设计，主要零部件的计算与选型，控制系统的电路原理分析，软件设计的流程图以及相关程序等。撰写的内容不少于7000字符，要求内容丰富，条理清晰图文并茂，符合国标。
该题目由多人合作完成每个人要适当分工，每个人的工作内容都要有不同的侧重点并在设计说明书中注明，对于自己侧重的部分要详细的进行论述。
4.1.3按齿面接触疲劳强度进行设计·····························8
4.2滚动轴承的选项·············································10
4.2.1概述··················································10
1.3 设计内容·················································3
1.4 设计任务·················································3
第2章概述····················································4
3.3 刀架抬起机构的设··········································5
3.4自动回转刀架的工作原理······································5
第4章数控车床回转刀架机械部分设计························8
5.1.2MCS-51单片机的工作方式·······························15
5.2端口扩展单元8255的介绍···································17
5.3 键盘显示接口8279介绍····································24
五．时间分配
1.分析研究设计任务，总体方案论证设计：2-3天；
2.机械系统设计：5-6天；
3.控制系统设计：4-5天；
4.软件设计：1-2天；
5.编写设计说明书：2-3天;
6.整理资料及答辩：1天。
第2章概述
设计一台四工位的卧式自动回转刀架，适用于C616或C6132经济型数控车床。要求绘制自动回转刀架的机械结构图，设计控制刀架自动转位的硬件电路，编写刀架的控制软件，推荐刀架所用的电动机的额定功率为90W，额定转速为1440 r/min，换刀时要求刀架转动的速度为30 r/min。
4.2.2滚动轴承的选型········································11
4.2.3滚动轴承的配合········································11
4.2.4滚动轴承的密封········································11
第3章总体设计方案············································5
3.1 减速传动机构的设计········································5
3.2 上刀锁紧与精定位机构的设计································5