文档介绍：CA6140普通车床的数控化改造
摘要
针对大多数企业,具有数量众多和较长使用寿命的普通机床,其加工精度较低、不能批量生产,自动化程度不高,自适应性差,但考虑投资成本,产业的连续性,又不能马上被淘汰。
数控机床作为机电液气一体化的典型产品,能解决机械制造中结构复杂、精密、批量、零件多变的问题,加工质量稳定,生产效率较高。
购买新的数控机床是提高产品质量和效率的重要途径,但是成本高,许多企业在短时间内无法实现,这严重阻碍企业设备更新的步伐。为此把普通机床数控化改造,不失为一条投资少、提升产品质量及生产效率的捷径,提升企业竞争力,在我之地。本文的主要内容有:
,确定普通车床数控化改造方案;
,支承方式的设计与轴承型号选择,步进电机选择等进行了详细研究;
,根据所改造的性能和精度指标来选配数控装置系统和自动刀架型号,提出选择方法;
-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;
,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;
,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;
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、调试方法。
关键词:普通车床、数控、改造
ABSTRACT
Most enterprises still have large amounts general-purpose machine tools which have longevity of service, low precision, can not adapt to mass production, low automatization 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, electronic, hydraulic and pneumatic integration, numerically controlled machines have a stabilization quality and high efficiency, and can solve problems such plex structure, high precision, mass production, part variety in machining.
Purchasing new numerically controlled machines is an important way to improve production precision and efficiency, but it may e 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 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 in detail and the reforming scheme is maked according to misty optimum’s synthesize adjudicate principle.
2. The ball screw’s type, a