数控外圆磨床加工硬质合金微钻精磨方法探讨

摘要

进行了微细硬质合金钻头精磨加工工艺研究,包括金刚石砂轮优化、数控外圆磨床程序优化、数控外圆磨床各相关速度优化。采用优化的工艺,解决了长径比大、小直径0.10 mm及以下直径的微钻精磨问题,提高了精磨的圆度、直线度。为微细钻头的后续开槽和磨尖加工及保证微钻的使用性能打下坚实的基础。%The f inishing grinding techniques of cemented carbide micro drill bit are studied.The diamond grinding wheel,the programming of f inish grinding and the cutting speed of CNC grinding machine are optimized.By employing optimized grinding techniques,the grinding diff iculties of micro drill bit with large ratio and small diameter are solved.At the same time,the roundness and the linearity of the world piece are ensured.