图1所示为苏联古比雪夫科列罗瓦航空学院研制出的一种能在钻床、铣床和镗床上用金刚石工具熨压孔径达6mm、长度60mm以上小孔(包括通孔、不通孔和具有很小曲率半径的成形孔)的装置。它是由调整螺钉1和3、弹 Figure 1 shows a prototype developed by the Institute of Aeronautics and Astronautology at the Kubicev in the Soviet Union that can drill holes of 6 mm in diameter and over 60 mm in length on drills, milling machines and boring mills using diamond tools (including through holes, A shaped hole with a small radius of curvature). It is adjusted by screws 1 and 3, shells