【作者】 刁斌；

【导师】 黄学良；

【作者基本信息】 东南大学 ， 电机与电器， 2006， 硕士

【摘要】 基于HUST(台湾产某数控器型号)控制器的全自动数控系统,是一套完全由本实验室课题组自主开发的三轴联动机电一体化平台。该平台集机械、电气控制、PC机后台管理为一体,具有很高的系统集成性和实际应用价值。根据不同情况下的加工要求,在该平台基础上加以改进,可以制造出实际产品化的机械加工车床系统。当前,国内适用于高精度机加工的高端成套系统产品基本被国外知名厂商占领,而随着我国经济的进一步发展,在数控机加工这方面的需求日益增长,因此,该系统平台的产品化具有很重要的现实意义。高精度数控铣床是近年来机械加工的热点。零件毛胚必须经过一定程度的切铣,才能保证表面的光滑度,满足客户的要求。柔性板材是一种重要的建筑和装饰材料,被广泛应用于楼房搭建、室内装修、家具制造等各个领域,而套料裁切是形成板材成品的一个重要工序。目前,国产的数控系统在精度、速度、可靠性方面与国外同类产品相比还有一定的差距,因此国内很多厂家的数控设备大多依赖于进口。同时,随着以计算机技术为代表的信息技术的发展,计算机集成制造(CIM)被逐渐应用于制造行业,企业的生产模式从生产过程的单一自动化到产品设计、加工制造、经营管理等全过程的综合自动化。参考国外数控系统的一些先进技术,本文针对基于HUST控制器的全自动数控加工系统的两套实际产品开发工作展开论述。论文首先简述了数控技术的发展趋势和CIM的思想,在此基础上介绍了平台系统下位机部分电控系统设备的组成、强弱电控制系统的设计、控制过程中数据的相互传递、后台软件控制系统基本功能实现。接着分别详细叙述了高精度数控铣床控制软件和套料切割系统控制软件的设计和工程实现。铣床控制软件包括几个主要部分——任意形状产品图形信息的导入、上位机与下位机通信接口的实现、铣刀轨迹及其G代码的自动生成等。论文的后半部分重点阐述了高精度套料裁切系统部分的新设计,主要包括最小包围矩形、扫描复原、图形微调、异形件排样优化等四个方面。最后,本文简要作了简单总结,并提出了一些针对系统改进和扩展的建议和方案。平台产品化之一铣床系统已经投入商业运行,到目前为止,还没有出现明显生产错误,整个系统运行良好。更多还原

【Abstract】 Automatic CNC system based on HUST’s control is one set of three-axis linkage mechatronic platform designed completely by our lab team independently. Mechanical technology, electrical control technology and PC management technology have been used in this platform system. This platform has highly practical value and system integration. On the base of this platform, we can make practical machine tool. In these years, high-precision numerical control machine tool market has been occupied almost by foreign companies, and with the development of our country economic , the need of the high-precision numerical control machine tool will be more and more increasing . So it is very necessary to make this platform be the practical product.High-precision numerical control milling machine is an important focus in the machining industry. To make clients satisfied, roughcasts must be processed to be as clean as a whistle. In addition ,The board material is one kind of important architectural and ornamental material that are used widely in many fields such as building construction, furniture manufacture. Board cutting is one of the important working procedures in the board machining process. At present, compared with the same type of foreign products, home-made numerical control equipments still have disparities in location precision, cutting speed, running dependability and so on. So, domestic factories generally use imported numerical control equipments. During these years , with the development of information technology represented by computer technology, Computer Integrated Manufacturing (CIM) has been applied to manufacturing industry gradually. Production mode of the enterprise is changing from single automation of producing process to integrated automation of all the process including product design, product manufacturing, quality assurance and so on. Referring to some advanced technology of foreign countries and following the basic idea of CIM, analyzing how to develop a complete Numerical Control Milling Machine system based on PC management and CNC control, and making the Board Cutting system based on the platform system which has been succeeded already are the two main objects of the dissertation.After briefly introducing the development of numerical control technique and the conception of CIM, the dissertation analyzes the functions of the hardware configuration of the platform including Mechanical design , electrical control design and PC management design etc. Then some main parts of the Numerical Control Milling Cutter software development such as extraction of drawing information ,the communication between super-computer and sub-computer are expatiated on. To the sub-computer module, the dissertation mainly presents design of building the track of the cutter center automatically according to the parameters.In addition, the rest of this dissertation mainly discuss the new ways, which are used in Board Cutting system, including how to build the minimum encircling rectangle of the random drawing automatically and two-dimension cutting stock algorithm etc.At last, Some proposal of improving system is brought forward at the end of the dissertation. The Numerical Control Milling machine system has been used to work in the factory. Until now ,no problem has been found , The system works well.更多还原