数控机床作为机电一体化的典型产品,在机械制造业中发挥着巨大的作用,很好的解决了现代机械制造中结构复杂，精密，批量小,多变零件的加工问题,且能稳定产品的加工质量,大幅度提高生产效率。本论文主要对数控机床伺服进给系统的机械部分这一课题进行探讨，文中详细描述了数控机床伺服进给系统的设计方法,包括传动系统总体设计，滚珠丝杠副的选择，伺服电动机的选择,精度和刚度验算。同时运用软件Solidworks做出伺服进给系统的零部件，以及将各个零部件进行装配，二维工程图出图。
关键词：数控机床;伺服电动机；伺服进给系统；滚珠丝杠副
NC machine tools as typical electromechanical products, plays an enormous role in machinery manufacturing, it solutes the problems of modern machinery manufacturing complex, precision, small batches，changeable parts processing, also it can be able to stable quality of products, increase productivity greatly. In this paper, it mainly explore to the topic of mechanical parts of NC machine tools’ servo feed system, This article describes the designing method of the NC machine tools’ servo feed system , including designing the transmission system, choosing Ball Screws, servo motor, checking the accuracy and rigidity. Make out parts of NC machine tools’ servo feed system and assemble the parts with solidworks. Export 2D engineering drawing and make the animations of feed system, produce three-dimensional cutaway views of Ball Screws and Rolling Guides.
Key word: NC machine;Servo motor; Servo feed system; Ball Screws
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