一、概述圆分度刻划技术迄今已有很长的历史。随着科学技术的发展,圆分度刻划技术由原始的仿制母盘刻划发展到以精密蜗轮付为分度基准的纯机械间歇刻划。近年来,由于国防工业、精密机械制造工业的飞跃发展,及高精度的圆分度检测元件的急需给圆刻线机的刻划精度提出了越来越高的要求。近十几年来,美国Baldwin公司、英国NPL、荷兰Philip公司都在 First, an overview Round indexing technique has so far a long history. With the development of science and technology, the circular graduation engraving technique has been developed from the original imitation master engraving to the purely mechanical intermittence engraving based on the graduation of the precision worm wheel. In recent years, due to the rapid development of national defense industry, precision machinery manufacturing industry and the urgent need of high-precision circular indexing detection components, higher and higher requirements are put on the scoring precision of circular line marking machines. In the past ten years, the United States Baldwin company, the British NPL, Holland Philip company are