【作者】 罗玲慧；

【导师】 梁式； 廖小平；

【作者基本信息】 广西大学 ， 机械制造及其自动化， 2003， 硕士

【摘要】 数控机床在工业生产中得到广泛应用，相应的数控编程技术也迅猛的发展。国外的数控CAD／CAM软件功能非常强大，但是价格高，在中小企业很难推广应用；而国产的数控CAD／CAM软件也很多，它们各有特色，并不完善，有很多需要研究；所以有必要开发一个面向中小企业具有自主版权的数控编程系统。 本文对数控线切割CAD／CAM集成系统进行开发研究，研究的内容包括以下几个方面： (1)基于实际需求情况，讨论系统基本结构框架的构成。 (2)讨论系统中的两个关键技术：曲线建模技术和无缝集成流行CAD软件技术，通过两技术分别实现自由曲线生成和与流行CAD软件的接口。分析CAD模块类和系统数据结构，应用所讨论的技术和方法实现数控线切割集成系统的CAD模块功能。 (3)讨论采用图形元素的排序技术实现了加工轨迹确定的功能；分析3B和G数控代码的指令格式，通过对刀位数据的分析采用相关的数学方法生成了数控代码；讨论仿真过程的实现步骤，最终完成了CAM的基本功能。 (4)实例说明系统的基本操作流程，从中看出系统已实现初步开发，并为下步的更深入研究积累经验。更多还原

【Abstract】 Numerical control machine tool gains comprehensive appliance in industrial manufacture, accordingly numerical control programming technology also gains rapid development. Overseas numerical control CAD/CAM system that function is very strong and system’ s price is high, it is difficult that gain appliance and expansion in middle and small enterprise; We have many domestic numerical control CAD/GAM software, each software has the special features and is not perfect, many ways need to study, for the reasons it is necessary to develop the numerical control programming system which face middle and small enterprises and has independent copyright.This paper develops and researches CAD/CAM integrated system of numerical control linear cutting, discusses the following several contents:(l)Based on practical requirement discuss structure of system framework.(2)Discuss two key technology: curve modeling technology and non-spacing integrated popular CAD software technology, respectively realize free-curve and juncture with popular CAD software based on two technology. It analyzes CAD module class and system data structure, realizes CAD module function of numerical control wire cutting integrated system by discussed technology andmethod.(3)it discusses that adopt technology of sorting graphics element to realize function that confirm machining track. It analyzes instruction formats of 3B and G NC code and produces NG code us i ng re I evant mathemat i ca I methods by analyzing tool position. It discusses realization approach of simulating process, finally completes CAM basic function.(4) Exp lain system bas i c operat i ng flow by example, it makes out that system realizes introduction exploitation, accumulates experience for next deep research更多还原