3、4．根据普通车床CA6140电气控制系统和原理图与普通车床数控化改造CJK6140-A的数控系统对比分析，形成普通车床数控化改造完整的电气控制技术图； 5.为保持切削螺纹的功能，仔细研究了在主轴上安装脉冲发生器的选型，脉冲发生器直接与主轴间连接方法，并形成了相应的技术图； 6.拆卸普通机床，甩掉原有进给箱等，对主传动系统的进行大修，滑板贴塑与铲刮调试，对机床相关部件和参数进行测绘、测量； 7.绘出相应的零件图和装备图； 8．给出普通车床数控化改造的安装、调试方法。 关键词：普通车床；数控；改造 ABSTRACT Most enterprises still have large a
4、mounts general-purpose machine tools which have longevity of service, low precision, can not adapt to mass production, low IIautomatization and adaptability, but can not be washed out because of its low cost and continuity of enterprise’s production.As a representative production of mechanical,
5、 electronic, hydraulic and pneumatic integration, numerically controlled machines have a stabilization quality and high efficiency, and can solve problems such as complex structure, high precision, mass production, part variety in machining. Purchasing new numerically controlled machines is an
6、important way to improve production precision and efficiency, but it may not come true to many enterprises because it cost much. Enterprises’ equipment updating step are counteracted severly. So General lathe's numerically controlled reforming is a quick way that costs less, improve production
7、precision and efficiency, and it can improve enterprises’ competitive power. So it can takes its place in our way to a powerful manufacturing country. The main contents is: 1. The economical efficiency of the reform is evaluated i
