毕业设计（论文）-电火花线切割的自动编程和仿真系统.doc

电火花线切割的自动编程和仿真系统 摘 要 随着CAD及其相关技术的应用和推广，从根本上改变了传统的产品设计、制造模式，极大地提高了生产效率，创造更多的技术经济效益。数控加工仿真是计算机辅助设计与制造的关键技术之一。电火花线切割加工的仿真技术对于加工精度和加工表面质量分析具有重要意义。为此，本文对电火花线切割加工的几何仿真技术进行了研究。 为了实现电火花线切割加工自动编程，本课题完成了基于AutoCAD的数控加工自动编程系统的开发。本文首先简单介绍了自动编程和仿真技术的研究现状和发展趋势，以及目前市场上常用的自动编程和仿真系统。接着详细论述了运用AutoCAD内置二次开发工具Auto Lisp语言、DCL语言，结合国家标准，开发一个新的AutoCAD平台上的命令，来实现零件的自动编程和加工仿真系统。最后给出一个典型零件自动编程实例，并通过该实例介绍了系统的应用方法。 本文对从事自动编程系统开发的相关人员具有一定的参考价值，还可供开发AutoCAD的人员和从事电火花线切割零件加工的企业员工参考，开发的软件系统可用于电火花线切割加工自动编程。 关键词：数控编程，加工仿真，AutoCAD，Lisp语言 AUTOMATIC PROGRAMMING TECHNOLOGY AND ANALOGUE SYSTEM OF WIRE_CUT ELECTRICAL DISCHARGE MACHINING ABSTRACT With the wide application of CAD/CAM and other related technologies, traditinal design and production methods have been thoroughly innovated, which improves the productivity and brings greater technologic and economic benefit. Wire-Cut Electrical Discharge Machining simulation is the key technology of CAD/CAM. Geometry simulation technique for Wire-Cut Electrical Discharge Machining has important meaning for high precision and surface quality. Based on such a notion, geometry simulation in is studied in this thesis. In order to realize the automatic program of Wire-Cut Electrical Discharge Machining, in this subject we have completed the development of automatic program system of numerical contral machining based on AutoCAD platform. Firstly, this discourse simply introduces research status quo and developing trend of the automatic programming technology and analogue system in common use in present market. Secondly, Uses AutoCAD built-in re-development tool Auto the Lisp language, the DCL language, the union national standards, develops in a new AutoCAD platform the order, may realize the engineering products design parametrization; May realize the automatic programming technology and analogue system. Finally, gives an automatic programming example of a typical part and introduces applying method of this system through this example. This discourse can be