【作者】 孔德永；

【导师】 胡赤兵；

【作者基本信息】 兰州理工大学 ， 机械制造及其自动化， 2011， 硕士

【摘要】 非圆齿轮数控铣齿加工自动编程系统的研究是宁夏自治区科技攻关项目“数控车铣与齿轮加工复合机床的研制”课题的一个子课题,该子课题的目标是要在铣削方面解决了非圆齿轮自动编程难的问题,这符合目前数控加工技术向复合化,多功能化,专业化和经济化发展趋势。本论文基于数控车铣复合加工机床,分三步来研究非圆齿轮数控铣齿加工自动编程系统。第一步从理论上分析非圆齿轮数控铣齿加工自动编程系统。首先通过研究非圆齿轮数控铣齿加工自动编程系统的总体结构和加工流程图,对各个模块进行功能分析;然后对非圆齿轮数学模型及用环形铣刀加工非圆齿轮的原理做了深入的分析,并从理论上分析了非圆齿轮数控铣齿加工对刀原理、不根切的原因和非圆齿轮精度综合评价的原理。第二步对系统进行的具体设计。在Pro/E 4.0平台上利用Pro/E二次开发工具pro/toolkit和VC++6.0进行二次开发,设计了非圆齿轮参数化的模型;再把齿轮专家技术和CAD/CAPP/CAM集成技术结合起来,利用COM编程技术对各模块间进行连接,最后对编程系统进行模块集成。第三步以二阶椭圆齿轮铣齿加工自动编程为例,首先对对刀具轨迹进行仿真,然后对二阶椭圆齿轮进行模拟加工,生成数控加工所需要的NC程序,实现非圆齿轮自动编程,最后用综合检查法验证了非圆齿轮编程系统的精度。更多还原

【Abstract】 The research of non-circular gear CNC milling processing automatic programming system is a sub-topic for scientific and technological project which is a complex CNC Machine including turning,milling and gear processing in Ningxia Autonomous Region. The sub-topic sloves the difficult problem which is about Non-circular gear automatic programming. The research meets the current CNC machining technology development which trends to composite, multi-functional, professional and economization.The paper is based on Complex CNC Machine including turning,milling to mill non-circular gears, focusing on three steps to research the Non-circular gear CNC milling processing automatic programming system.The first step is that analysis the non-circular gear CNC milling processing automatic programming system in theory. The way is that studying the structure of non-circular gear automatic programming, processing flow chart and analysising the function of each module.Then analysis mathematical model of non-circular gear and milling processing principle of non-circular gears in depth which includes the knife of CNC milling processing , the cause of undercut and the way to comprehensive evaluing the accuracy of non-circular gear.The second step is the specific design of automatic programming system. Using Pro / E secondary development tool pro / toolkit and Microsoft VC + +6.0 to design parametric model of the non- circular gear base on the Pro / E 4.0 platform.Then integrating the programming system module by using gear expert technology and CAD / CAPP / CAM integrated technology including using the technology of COM Programming to connect different modules.The third step is to verify that the non-circular gear CNC milling processing automatic programming system can generate high-precision CNC machining program of non-circular gears. First is to describles the design of the system interfaceand specific operations, then using the second oval gear as example to achieve miling processing artomatic programming which includes tool path simulation.processing simulation and generating the required CNC machining NC program. Thelast is that using the programming system in Complex CNC milling machine to the virtual processing precision analysis of non-circular gear.更多还原