球头铣刀倒棱刃磨削砂轮轨迹建模  

Modeling of Centre Trace and Axis Vector of Grinding Wheel for Manufacturing of Ball End Mill With Chamfered Cutting Edge

作　　者：计伟[1] 刘献礼[1] 李录彬 王广越[1] 范梦超 

机构地区：[1]哈尔滨理工大学机械动力工程学院,黑龙江哈尔滨150080

出　　处：《哈尔滨理工大学学报》2015年第5期34-38,共5页Journal of Harbin University of Science and Technology

基　　金：国家自然科学基金(51235003)

摘　　要：针对带有倒棱切削刃的球头铣刀的磨制中砂轮轨迹生成问题,首先采用解析几何的方法通过坐标系变换,建立了铣刀顶刃切削刃和倒棱面模型,并通过确定倒棱面方程中长度和角度参数的关系进而得到倒棱面磨削轨迹;然后分析了砂轮与倒棱面的接触关系,选用了平行砂轮,在此基础上建立了磨削球头铣刀倒棱面的砂轮中心轨迹和砂轮轴矢量数学模型;最后通过Matlab软件对磨削倒棱面的磨削轨迹、砂轮中心轨迹和轴矢量进行仿真,并采用Saacke磨床磨制了刀具样件,结果表明所建立的数学模型的正确性.Towards the manufacturing of ball end mill with chamfered cutting edge, firstly, this paper presents a geometrical modeling of cutting edge and its chamfer face on the ball end using the transformation of coordinate systems. Then the grinding trace of chamfered face based on the relationship between length and angle parameters. Secondly, according to the relationship between grinding wheel （GW） and chamfer face, the parallel GW is select- ed to grinding the chamfer face, and then the centre trace and axis vector of GW are calculated. Finally, the simu- lations of the models are carried out on the Matlab software, and then the ball end mill with chamfered cutting edge is grouned by the Saacke grinding centre, which demonstrate the correctness of the models.

关 键 词：倒棱切削刃 球头铣刀 磨削轨迹 砂轮中心 砂轮轴矢量 

分 类 号：TG501[金属学及工艺—金属切削加工及机床]