面向速度各点异性的刀具运动扫掠体建模与仿真  

Milling Cutter Swept Volume Modeling and Cutting Simulation Based on Velocity Anisotropy of Cutter Surface

作　　者：杨建中[1] 杜璇[1] 黄科[1] 王宝山[1] 彭芳瑜[1] 

机构地区：[1]华中科技大学,武汉430074

出　　处：《中国机械工程》2011年第21期2593-2597,共5页China Mechanical Engineering

基　　金：国家自然科学基金资助重点项目(50835004);国家自然科学基金资助项目(50975111);国家高技术研究发展计划(863计划)资助项目(2009AA04Z149)

摘　　要：根据刀具回转体的几何特点,考虑刀具运动时表面各点的速度差异性,建立了回转体的球体模型,计算了多轴数控加工的刀具扫掠轮廓线,进而获得了刀具扫掠包络面,并进行了加工过程仿真验证。算法考虑了多轴数控加工机床运动链和多轴刀具运动的速度特点,无需复杂的方程求解和数值分析,直接简单准确地确定了刀具运动扫掠体的几何表达。Based on the geometric features of revolution solids and the differences of the velocity of points on cutter surface,a sphere model of revolution solid was constructed.The cutter＇s swept profile was determined by this model.By integrating the swept profiles,the cutter＇s swept envelope can be constructed,and then the simulation was carried out to verify the validation.The proposed method,taking account of machine tool kinematic chain and the velocity of cutter undergoing multi-axis,the swept volume of a flat cutter is determined straightforward without complicated equations and numerical analyses.

关 键 词：多轴 加工过程仿真 扫掠体 扫掠轮廓线 

分 类 号：TP391.73[自动化与计算机技术—计算机应用技术]