带角圆的回转铣刀研究中的两个问题及其处理  

Two problems concerning 2-axis NC machining using toroid-shaped revolving cutter and their solutions

作　　者：唐余勇[1] 任秉银[2] 

机构地区：[1]哈尔滨工业大学理学院,黑龙江哈尔滨150001 [2]哈尔滨工业大学机电工程学院,黑龙江哈尔滨150001

出　　处：《哈尔滨工业大学学报》2002年第2期191-193,共3页Journal of Harbin Institute of Technology

基　　金：黑龙江省自然科学基金资助项目 (F0 1-2 3) ;哈尔滨工业大学跨学科交叉性研究基金资助项目(HIT .MD2 0 0 0 .17)

摘　　要：针对带角圆的与轴线成定角的回转铣刀设计制造的两个问题———端面近域刃口不存在和制造中进给速度趋于无穷大的现象 ,分析了产生的原因是刃口曲线要满足的微分方程在实数范围内无解 ,提出用平面刃口曲线、与经线成定角螺旋线、等螺距螺旋线 3种不同的填补法解决问题的方案并给出对应的数学模型 ,这 3种方法经过试验验证可行可靠 ,为这类铣刀设计与制造提供了依据 .It is pointed out through analysis of the causes for the two kernel problems concerning the design and manufacturing of a toroid-shaped revolving cutter with a constant angle between the axis of the revolving cutter and its cutting edge: the cutting edge does not exist any more in the area near the end face of a cutter and the required feed speed of grinding wheel during NC machining of the cutter is infinitive that the differential equation for the cutting edge has no solution in real range. Three methods of supply and corresponding mathematical models of planar and helical cutting edges with a constant angle to the meridian and helical cutting edge with a constant pitch are proposed. Experimental results proved these methods are feasible and reliable.

关 键 词：回转铣刀 螺旋刃口 数学模型 设计 制造 刃口曲线 

分 类 号：TG714[金属学及工艺—刀具与模具]