【作者】 韩文鹤；

【导师】 王时龙；

【作者基本信息】 重庆大学 ， 机械电子工程， 2006， 硕士

【摘要】 现有的齿轮加工数控机床，一般都采用手工编程方法，即通过人工来进行工艺处理、数值计算、编写程序、键盘输入程序、程序校验等各步骤。手工编程方法主要的不足之处是：①对编程人员的职业技术要求比较高；②编程时容易出错，特别是计算和键盘输入程序环节更容易出错，从而影响齿轮的加工质量；③效率比较低，生产周期长。在现有少数自动编程方法中，大部分是通过对绘图软件进行二次开发实现的，这种方法只能在计算机上实现，而且生成的NC程序还要再通过联网传输给数控机床。 本文根据齿轮的特殊性，对齿轮数控加工零编程技术进行了可行性分析，并建立了齿轮数控加工编程的数学模型，在此基础上研制了一套齿轮数控加工NC程序自动生成技术，即通过输入一定的工件参数、刀具参数、工艺参数等参数，然后对这些参数进行校验和计算，最后按照数控系统的代码格式自动生成该齿轮数控加工的NC程序。利用西门子840D数控系统的开放性，本文把零编程技术嵌入到西门子840D数控系统中，研发了一套基于西门子840D数控系统的齿轮零编程系统；针对不开放的数控系统，本文提出了把零编程技术应用到嵌入式系统中，利用嵌入式系统来辅助数控齿轮加工机床编写NC程序，并对该方案的实现进行了分析和阐述。 应用零编程技术后，不仅能缩短齿轮生产周期、提高数控齿轮加工机床的利用率，降低机床操作人员的劳动强度和职业技术门槛，提高齿轮加工的工艺成熟度和齿轮加工的质量稳定性，而且也能提升该齿轮数控机床的市场竞争力。更多还原

【Abstract】 The manual programming method, which uses manpower to carry on processing procedure, computing, compiling programs, inputting programs, checking programs and so on, is the most common programming method of the numerical control machine for gear producing. The main deficiencies of manual programming method are: needing high qualification of programmers’ professional specification; being prone to make mistakes when programming, especially when calculating and inputting the NC programs, which may affects the quality of gear; having lower efficiency and longer production period. Developed based on cartography software, most of the existing automatic programming methods only can realize on a computer, which means that the generated NC programs have to be transported to the numerical control machine through network among computers and the numerical control machines.The feasibility of the auto-programming method is analyzed and the mathematical model of NC programming for gear numerical control producing is developed in this paper. The NC program automatically generating technology is studied on the above foundation. Certain parameters like work piece parameter, cutting tool parameter, procedure parameter, are inputted, then are verified and computed, finally the gear’s NC program is generated according to the code format of the numerical control system. The auto-programming technology is embedded into SINUMERIK 840D numerical control system by use of the openness of the system, a set of gear auto-programming system based on SINUMERIK 840D numerical control system is studied and developed. As to the non-open numerical control systems, the auto-programming technology applied to embedded system is presented being a assistant equipment for NC programming, and the realization of scheme is analyzed and stated in this paper.After applying the auto-programming technology, not only the gear’s production period can be shortened, the efficiency of the gear producing numerical control machine be improved, the operator’s labor intensity and the professional technical threshold be reduced, the gear’s quality stability and the craft maturity be enhanced, but also the market competitive power of this kind of gear producing numerical control machine can be promoted.更多还原