目录1总体方案·················································01.1CK6140的现状和发展·····································11.2CK6140数控卧式车床的总体方案论证与拟定·····················21.2.1数控车床·········································21.2.2CK6140数控卧式车床的拟定····························22机械部分设计计算说明········································42.1主运动部分计算·········································42.1.1参数的确定·······································42.1.2传动设计········································52.1.3转速图的拟定······································82.1.4带轮直径和齿轮齿数的确定···························112.1.5传动件的估算和验算································192.1.6展开图设计·······································362.2纵向进给运动设计·······································532.2.1滚珠丝杆副的选择··································532.2.2驱动电机的选用····································583控制系统设计·············································623.1绘制控制系统结构框图····································623.2.选择中央处理单元（CPU）的类型····························623.3存储器扩展电路设计·····································633.４I/O接口电路及辅助电路设计·····························64参考文献················································70致谢····················································72LATHES····················································77第1页共82页编号：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1页共82页1总体方案1.1CK6140的现状和发展自第一台数控机床在美国问世至今的半个世纪内，机床数控技术的发展迅速，经历了六代两个阶段的发展过程。其中，第一个阶段为NC阶段；第二个阶段为CNC阶段，从1974年微处理器开始用于数控系统，即为第五代数空系统。在近20多年内，在生产中，实际使用的数控系统大多是这第五代数控系统，其性能和可靠性随着技术的发展得到了根本性的提高。从20世纪90年代开始，微电子技术和计算机技术的发展突飞猛进，PC微机的发展尤为突出，无论是软硬件还是外器件的进展日新月异，计算机所采用的芯片集成化越来越高，功能越来越强，而成本却越来越低，原来在大，中型机上才能实现的功能现在在微型机上就可以实现。在美国首先推出了基于PC微机的数控系统，即PCNC系统，它被划入为所谓的第六代数控系统。下面从数控系统的性能、功能和体系结构三方面讨论机床。数控技术的发展趋势：1.性能方面的发展趋势（1）.高速高精度高效（2）.柔性化（3）.工艺复合和轴化（4）.实时智能化2.功能发展方面（1）.用户界面图形化（2）.科学计算可视化（3）.插补和补偿方式多样化（4）.内置高性能PLC（5）...
