CA6163数控化改装进给伺服系统传动计算毕业论文.doc
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1、 机械设计及自动化方向 CA6163数控化改装进给伺服系统传动计算系 别专科机02专 业机电一体化班 级201005737174姓 名 指导教师 2012年 2月 10日摘要现代数控机床是未来工厂自动化的基础。旧机床数控化改造范围大、潜力大、投资少、见效快,已经成为适合我国国情,促进制造业技术进步的重要手段。因此,数控系统改造车床的研究具有重要意义。本文在叙述了数控技术的历史、现状和发展的基础上,通过对旧机床的分析,结合机床改造的总体思想,提出了数控化改造的技术方案和新数控系统的选型配置方案;针对旧机床的要求,进行了传动系统的重新设计,提高了传动的精度,还进行了电气系统的设计和调试,主要包括硬
2、件设计和电气控制软件设计:简单介绍了单片机系统,并用单片机设计了数控车床的电气控制电路;重新设计机床的控制逻辑,通过对伺服系统的分析,完成了机床各主要参数的优化和匹配。专题部分讨论了数控车床两种插补方式的原理,并设计了数控车床的插补程序。本机床改造后将会展示出强大的功能、稳定的性能,将完全符合机床的技术规格和精度标准,加工出合格的零件,大大提高了车床的性能,是一次有益的尝试。关键词:CA6163,机床,改造,数控系统,单片机 。AbstractThe modern Computer Numerical Control (CNC)machine is the foundation of the
3、modern manufactory. The remaking of old machine for CNC is an efficient means to promote the progress of the manufactory, which is adapted to the circumstance for our country. Its range is wide, its cost is low and its period is short. Therefore, it is very important to study a remarking the lathe m
4、achine by using CNC system.This paper introduces the history and the development of CNC system. Based on its theory, through the analysis about the components of the old machine, presents the remaking transmission system to raise the precision of the lathe。Presents the remaking schemes of the CNC sy
5、stem. According to the old machine, the detail design and adjustment of the electric system have been completed, including the design of hardware and control software:Have introduced the one-chip computer system briefly, and has designed the electric control circuit of the numerical control lathe wi
6、th the one-chip computer;And also redesign the control logic of the machine, through analyzing of the servo system, the main parameters of the machine have been confirmed and optimized also.Have discussed two kinds interpolation numerical control lathes with thematic part, and design the interpolati
7、on forms for the numerical control lathe.The remarked machine will show its powerful ability and high reliability, it conforms to the technical regulation and the accuracy standard of the machine.,and will process the qualified part, it has improved the performance of the lathe greatly, its a benefi
8、cial try.Keywords:CA6163, lathe, Remake, CNC system, One-chip computer. 第一章 进给伺服系统传动计算 1.1确定系统脉冲当量 11 1.2切削力的确定 12 1.3计算进给牵引力 12 1.4计算最大动负载 12 1.5传动效率计算13 1.6刚度计算14 1.7进给伺服系统传动计算14 1.7.1确定传动比 14 1.7.2齿轮参数的计算14 1.8步进电机的计算和选用15 1.8.1转动惯量的计算15 1.8.2电机力矩的计算16 1.9步进电机的选择19结论43 参考文献:45 致谢47 第一章 进给伺服系统传动计算
9、CA6163机床主要技术参数如表3-1:表1-1 CA6163机床主要技术参数最大回转直径630mm电机功率10KWLmax2000mm快进速度纵向2.4m/min横向1.2m/min切削速度纵向0.5m/min横向0.25m/min定位精度0.015mm移动部件重量纵向1200N横向800N加速时间30ms机床效率0.71.1确定系统脉冲当量车床纵向脉冲当量为0.01/mm脉冲;横向脉冲当量为0.005mm/脉冲。1.2切削力的确定 15 纵切端面时的主切削力FZ=0.67Dmax=10595(N)横切端面时的主切削力其中:1.3计算进给牵引力作用在滚珠丝杠上的进给牵引力主要包括切削时的走刀
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