摘要
对在五坐标数控加工环境下,利用圆环面刀具加工复杂曲面的情况进行了综述,采用一种基于参数表面真实特征的近似行距公式来计算等行距,并将其进行推广。具体描述了刀具模型的建立过程,将其简化并通过坐标系的旋转变换至编程坐标系中。阐述了三维刀补算法的原理,为了求出接触点的数据和法矢,应用了三角化离散曲面的方法,从而生成刀位轨迹,之后为了保证加工精度和曲面的平滑度,运用了四元数插补法进行优化,并将其运用在了鞋楦的加工中,通过误差分析验证了其可行性。
a brief review of machining sculpture surface has been provided which is based on the 5-axis CNC machining andtorus cutter.An approximate spacing formula of real characteristic parameters has been provided which is calculated based on the surface spacing and we have generalized this method. It describes the process of establishing the cutting tool model, and simplifies the system of the coordinate system to the programming coordinate system. In this paper,3D cutter radiuscompensation theory is introduced. In order to obtain the data and the normal vector of the contact point, the method of triangulation is used to generate the tool path. In order to guarantee machining accuracy and surface smoothness, four element interpolation method is used to optimize the toal path, and the feasibility of this method is verified by the error analysis in detail .
出处
《机械设计与制造》
北大核心
2017年第6期198-201,共4页
Machinery Design & Manufacture
基金
上海自然科学基金(13ZR1430000)
