多线型组合平面刀具的自动编程磨削技术

Abstract

多线型不规则形状、零前角组合平面刀具的加工一般以刀具后刀面的刃磨为主。为实现数控磨削加工,提出了一种变参数多线型组合平面刀具的几何建模和数控磨削程序自动编程方法。基于刀刃建立数学模型,进而确定刀位点的坐标;通过编制宏程序,解决了刀具的在线检测和自动加工程序的快速自动生成。加工试验表明,这种方法在保证刀具加工精度的同时使刀具的生产效率提高50%以上。

Usually,the grinding of the cutting edge of the planar cutting tools with zero rake angle and various linetypes is mainly carried out on the flank face.In order to realize NC grinding,an auto-programming technology is presented.By the model of cutting-edge curves and on-line position measuring of tool,the cutting location and the machining program are obtained rapidly.Test proves that the proposed method can satisfy accuracy,and increase the machining efficiency about 50%.