|
目 录 1 总体方案················································· 0 copyright paper51.com 1.1CK6140的现状和发展····································· 1 copyright paper51.com 1.2 CK6140数控卧式车床的总体方案论证与拟定····················· 2 http://www.paper51.com 1.2.1 数控车床········································· 2 内容来自www.paper51.com
1.2.2 CK6140数控卧式车床的拟定···························· 2 http://www.paper51.com 2 机械部分设计计算说明········································ 4 paper51.com 2.1主运动部分计算········································· 4 copyright paper51.com 2.1.1 参数的确定······································· 4 paper51.com 2.1.2 传动设计········································ 5 paper51.com 2.1.3转速图的拟定······································ 8 paper51.com 2.1.4 带轮直径和齿轮齿数的确定··························· 11 内容来自论文无忧网 www.paper51.com 2.1.5传动件的估算和验算································ 19 paper51.com 2.1.6展开图设计······································· 36 内容来自论文无忧网 www.paper51.com 2.2纵向进给运动设计······································· 53 内容来自www.paper51.com 2.2.1滚珠丝杆副的选择·································· 53 copyright paper51.com
2.2.2驱动电机的选用···································· 58 内容来自论文无忧网 www.paper51.com 3 控制系统设计············································· 62 http://www.paper51.com 3.1绘制控制系统结构框图···································· 62 copyright paper51.com 3.2.选择中央处理单元（CPU）的类型···························· 62 paper51.com 3.3存储器扩展电路设计····································· 63 http://www.paper51.com 3.４ I/O接口电路及辅助电路设计····························· 64 内容来自论文无忧网 www.paper51.com 参考 文 献················································ 70 copyright paper51.com 致 谢···················································· 72 内容来自www.paper51.com
LATHES···················································· 77 paper51.com
http://www.paper51.com
内容来自论文无忧网 www.paper51.com
1 总体方案 http://www.paper51.com 1.1 CK6140的现状和发展 内容来自论文无忧网 www.paper51.com
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。 http://www.paper51.com
下面从数控系统的性能、功能和体系结构三方面讨论机床。 copyright paper51.com
数控技术的发展趋势： 内容来自论文无忧网 www.paper51.com 1.性能方面的发展趋势 http://www.paper51.com （1）.高速高精度高效 paper51.com （2）.柔性化 内容来自www.paper51.com （3）.工艺复合和轴化 内容来自www.paper51.com （4）.实时智能化 paper51.com 2.功能发展方面 paper51.com
（1）.用户界面图形化 copyright paper51.com （2）.科学计算可视化 http://www.paper51.com
（3）.插补和补偿方式多样化 内容来自论文无忧网 www.paper51.com （4）.内置高性能PLC 内容来自论文无忧网 www.paper51.com （5）.多媒体技术应用 http://www.paper51.com 3.体系结构的发展 paper51.com （1）.集成化 http://www.paper51.com （2）.模块化 http://www.paper51.com
（3）.网络化 copyright paper51.com
（4）.开放式闭环控制模式 http://www.paper51.com 1.2 CK6140数控卧式车床的总体方案论证与拟定 copyright paper51.com
|