一、前言 1973年3月,一机部在广州召开的工具会议上,总结了国内外工具行业发展中的几个特点,提出钻头磨沟新工艺代替钻头铣沟旧工艺。采用新工艺,可以提高钻头的使用寿命、加工质量和效率。为使这一工艺早日实现,要求尽快试制磨沟机床和砂轮。第一砂轮厂、郑州磨料磨具磨削研究所安排了研制钻头自动磨沟高速砂轮课题。但由于 I. Introduction In March 1973, at a tool meeting held by a machine department in Guangzhou, a machine department summarized several characteristics in the development of the tool industry both at home and abroad and proposed that the new technology of bit grinding groove grinding instead of the old bit milling process. The use of new technology, can improve the life of the drill, processing quality and efficiency. In order to achieve an early realization of this process, it is required to try out grinding machine and grinding wheel as soon as possible. First Wheel Factory, Zhengzhou Institute of Abrasives Grinding Arranged the development of automatic grinding head high-speed grinding wheel topic. But thanks