本科毕业设计-基于运动控制卡的开放式数控系统研究.doc

摘 要 数控系统的开放性是当今数控系统发展的主流,开放式数控系统研究的目地是开发一种模块化的、可重构的、可扩充的控制系统的结构,以增强数控系统的柔性,在体系结构上给用户二次开发留有更多的余地,从而可以快速的响应新的加工需求。概述了数控系统的发展现状,介绍了开放式数控系统的结构,在此基础上提出了一套NC嵌入PC型的开放式数控系统,并对其软硬件进行了研究。PC为硬件平台的控制系统，PC以其良好的开放性成为数控系统的基础。开放式数控系统按其结构可以分为：NC嵌入PC型、PC嵌入NC型以及全软件型，在分析了这几种数控系统的优缺点后，重点研究了NC嵌入PC型的开放式数控系统，对其软硬件进行分析，设计出了数控系统的总控制框图，并使用VB做出了数控系统的控制界面。 关键字：数控系统；NC嵌入PC型；运动控制卡；硬件；软件 Abstract Nowadays the characteristic of openness of the CNC systems is becoming one of the most important directions of CNC development. The research of openness into the CNC systems aims to build a modular, reconfigurable and expandable architecture of CNC systems to improve the system’s flexibility and to enable the re-development of the systems. As a result, the CNC systems can respond to the market quickly and economically. Based on the general situation about NC system development, it presents the architecture of opening NC-embedded PC system. It introduces the hardware and software in this system. The CNC system, which is a kind of control system based on PC hardware platform, is categorized according to the different functions of PC in the system. The opening style computerized numerical control system can be divided into three forms according to their structure: NC embedded PC structure, PC embedded NC structure and the whole software model. After the analysis of the advantages and disadvantages of these types of CNC systems, the study focuses on the opening NC embedded PC system’s hardware and software. By analyzing the overall control of the CNC, the author designs the general system block diagram and develops the control interface of the NC system by VB Key words: Computerized numerical control (CNC) system; Opening; NC embedded PC; Motion control card; Hardware; Software 毕业设计（论文）原创性声明和使用授权说明 原创性声明 本人郑重承诺：所呈交的毕业设计（论文），是我个人在指导教师的指导下进行的研究工作及取得的成果。尽我所知，除文中特别加以标注和致谢的地方外，不包含其他人或组织已经发表或公布过的研究成果，也不包含我为获得 及其它教育机构的学位或学历而使用过的材料。对本研究提供过帮助和做出过贡献的个人或集体，均已在文中作了明确的说明并表示了谢