文档介绍：郑州大学自考本科毕业论文
专 业
姓 名
准考证号
论文题目普通车床数控化改造
2013年11月14日
CA6140普通车床数改的总体方案 II
1设计任务 1
2总体方案确定 1
3总传动系统和进给c market is also facing a grim situation: on the one hand, the domestic market is special CNC machine tool has a large demand for various types of machine tool products, but on the other hand, there are many domestic machine tool slow-moving keep long in stock, foreign machine tool products flooding the market, seriously affecting the NC machine tool in our country independent development momentum. The emergence of this phenomenon, in addition to cause the management, product quality and sales promotion means quality, one of the main reasons is the new products (including the base type, variant and special machine tools) of the long development cycle, not timely according to the needs of users to provide satisfactory products.
The cause of the common machine tool NC transformation be just unfolding, at present in our country the form will be a large number of fault machine especially ordinary machine a large number of idle upgrade transformation, with less investment, as soon as possible so that the equipment performance, in the economic development to create efficiency, it is an unneglectable issue many enterprises.
In addition, the general principle of NC transformation of lathe is on the premise of satisfying using demand, do reduce the potential for changes to the original machine, in order to reduce the cost of. In the process of transformation, in order to give full play to the technical performance after the transformation of CNC system, ensure the repeatability positioning accuracy after the transformation of lathe system under the control of a higher, reduce the crawl, and make its appearance, stable performance, reasonable transformation mechanism is very important. The reformation of feed system is the key to the entire transformation of mechanical device. Reconstruction scheme is: feed system with AC servo motor as driving device, the