螺旋锥齿轮虚拟加工过程算法

为了解决目前螺旋锥齿轮切削仿真中存在的仿真速度慢、精度低、过程不稳定和缺乏独立性等问题，以螺旋锥齿轮齿面成形过程为研究对象，运用“层片切割算法”进行三维实体几何模型动态仿真以及三维切削实时仿真．该算法主要包括建立切削坐标系、刀具数学模型、刀具坐标系的转换模型、层片分割模型、求交计算模型以及相邻切削位置特征点的取舍模型．以此为基础开发的螺旋锥齿轮虚拟加工软件采用Windows作为开发平台，以Visual C＋＋6．0（VC）作为基础编程语言，利用OpenGL图形库进行图形显示并将齿轮模型数据以规定格式输出．经验证，该算法求交速度快、结果精确，相关开发软件可靠准确．

Visual Machining Algorithm of Spiral Bevel Gear Forming Process

Since many problems exist in the simulation of spiral bevel gear machining,like slow speed,low preci-sion,unstable process,lack of independence and so on,a visual simulation system of 3D real machining was con-structed by slice algorithm on the basis of spiral bevel gear forming process in this paper.The algorithm includes cut-ting coordinate system construction,cutting tool modeling,cutting tool coordinate system transforming,slice mod-eling,calculation modeling and point selection at adjacent position.Then the spiral bevel gear machining simulation software was developed on Windows by Visual C++6.0 and OpenGL graphics library,which will output gear model and data document.Experiment proved that this visual simulation algorithm has advantages in fast speed and high precision,and that the related software is reliable and correct.