普通CA6140车床的经济型数控改造设计含4张CAD图+说明书

横向进给装配图

普通CA6140车床的经济型数控改造
摘要

数控机床以它生产效率高、可加工零件多样化的特点，越来越显示出它的优越性，然而，很多资深的老企业还存在着许多原有的普通机床，如何将普通机床改造成数控机床，已成为机械加工设备改造工作的重点。
本文以CA6140普通车床为例阐述了对普通机床进行技术改造的必要性，提出了该机床数控化改造的方案并实施了改造。机械部分改造主要做了以下工作：将两个进给方向的滑动丝杠改为滚珠丝杠，用伺服步进电机和减速齿轮来实现进给部分的调速，这样不仅提高了传动效率而且可以实现快速定位和准确的启、停；数字控制系统选用广州数控设备有`。
关键词：数控机床；数控化改造；数控系统

Abstract

Based on its high production efficiency, machinable parts diversification, CNC machine has increasingly shown its superiority. However, many senior enterprises still have large amount of original general-purpose machine tools, how to transform the ordinary tools into CNC machine tools has became the focus of the mechanical processing equipment modification.
Based on CA6140 centre lathe, this paper expounds the necessity of the technological transformation to general-purpose machine tools, and purposed transformation of the CNC program and implemented a transformation. Mechanical parts reconstruction made the following job: taking the two feeding direction of sliding screw instead of ball screw, servo stepping motor and reduction gear to realize the speed regulation of the feed part, thisworks not only improve the transmission efficiency,but also achieve rapid positioning and accurate start, stop. Digital control system chooses GSK 928TC-2 NC systemwhich produced by Nanjing Huaxing NC equipment limited liability company. This system achieves the digital control components coordinatework, and the cost is low. Electric system transformation canceled a large number of electronic components in high electrical cabinet; achieve the control circuit by switch relays, contactors, and servo drive. Then, testing precision and geometry accuracy of the machine after transformation, the test results meet the machine's accuracy. The test resultsverified the feasibility and reliability of machine tools, not only the processing expanded, and the labor intensity reduce, the machining efficiency improved.
Comparedwith before modification, the machine's operations are more convenient, and greatly reduce the laborer labor intensity, improve the production efficiency and product quality. This scheme has advantage of little investment and instant effect,which isworth popularizing.
Keywords: NC machine tool;Numerical control transformation;NC system

目录

1绪论1
1．1课题的研究目的和意义1
1．2本文的选题及主要研究内容1
1.2.1主要研究内容1
1.2.2数控化改造的主要环节2
2 CA6140普通车床数控化改造方案的设计4
2.1总体改造方案4
2.2改造的技术参数5
2.3传动系统改装设计与计算6
2.3.1纵向进给系统的设计与计算6
2.3.2横向进给系统的设计与计算13
2.4减速箱体的设计19
2.4.1纵向进给齿轮的设计19
2.4.2横向进给齿轮的设计19
2.5滚珠丝杠的安全使用20
3步进电机的设计与选择22
3.1纵向步进电机的选择22
3.2横向步进电机的选择26
4 CA6140车床数控化改造的数控系统31
4.1数控车床及数控系统的概述31
4.2 CA6140车床数控化改造的数控装置系统33
4.2.1数控装置系统选型33
4.2.2进给步进电机的驱动器选型35
4.2.3分配器35
4.2.4放大器37
4.3 CA6140车床数控化改造的数控系统功能38
4.3.1系统工作方式38
4.3.2系统报警39
4.3.3系统的编程与加工功能40
5 CJK6140数控车床电气控制设计41
5.1 CA6140车床电气控制41
5.1.1 CA6140车床运动形式41
5.1.2电力拖动特点和控制电路41
5.2 CJK6140数控车床电气控制设计41
5.2.1 CJK6140数控车床主电路设计41
5.2.2 CJK6140数控车床控制电路设计42
6 CJK6140车床改造验收45
6.1机床外观检查45
6.2机床的性能及数控功能的试验45
6.3 CJK6140数控车床数控系统的调试与试运行46
结论47
参考文献48
致谢49

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4目录

1字数

2摘要