ca6163普通车床数控化改造.rar

CA6163普通车床数控化改造


摘要
机床是机械制造业的重要基础设备，它的发展一直引起人们的高度关注，由于计算机技术的发展，促使机床的控制信息出现了很大的突破。现代数控机床是应用数字化计算机技术进行柔性自动化控制的新一代机床，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，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。
本机床改造后将会展示出强大的功能、稳定的性能，在投资比较少的情况下，既能满足生产加工的需求，又能提高机床的自动化程度。是一次有益的尝试。
关键词：CA6163;机床;改造;数控系统。
 
Abstract
The modern Computer Numerical Control （CNC）machine is the foundation of the 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 machine 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 system. 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 with 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 interpolation 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, it’s a beneficial try.
Keywords：CA6163;lathe ; Remake ; CNC system ; One-chip computer.
 
目录
摘要 I
Abstract II
目录 III
第一章 绪论 1
1.1  数控机床的历史和现状 1
1.2  数控机床的发展趋势和研究方向 3
1.2.1  高速度、高精度化 4
1.2.2多功能化 6
1.2.3智能化 7
1.2.4数控系统小型化 8
1.2.5数控编程自动化 8
1.2.6更高的可靠性 9
1.3机床数控化改造的必要性 9
第二章 机床改造的任务及总体思想 12
2.1机床改造的总体任务 12
2.2运动系统方案确定 12
2.2.1伺服系统的选择 12
2.2.2传动方式的选择 13
2.3数控系统软硬件总体设计 14
2.4数控系统硬件结构 14
2.5数控系统软件结构 15
第三章 进给伺服系统传动计算 17
3.1确定系统脉冲当量 17
3.2切削力的确定 17
3.3计算进给牵引力 18
3.4计算最大动负载C 18
3.5传动效率计算 20
3.6刚度计算 20
3.7进给伺服系统传动计算 21
3.7.1确定传动比 21
3.7.2齿轮参数的计算 21
3.8步进电机的计算和选用 22
3.8.1转动惯量的计算 22
3.8.2电机力矩的计算 23
3.9步进电机的选择 26
结论 28
参考文献 1
致谢 3