关键词: 球面砂轮；CNC磨削；复杂形状刀具；前刀面光滑过渡

Abstract:

This paper presented a novel CNC grinding method where a CBN spherical grinding wheel was used to grind complex shaped tools.The new method utilized the self-adaptation of a sphere to decrease the number of simultaneous cooperative axes of CNC grinder and to smooth the rake face between two different geometrical bodies of the tool.In addition,the proposed method provides theoretical reference for developing the new CNC grinding system of complex shaped surface.By means of 3D simulation system of CNC grinding process based on AutoCAD2006,rake face grinding for a taper ball-end mill as a typical example was given to verify the feasibility and availability of the new method.

Key words: spherical grinding wheel;CNC grinding;complex shaped tool；smooth transition of rake face