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在数字程序控制机床上,单件或小批量加工旋转体类零件时,毛坯的端面切削和钻中心孔是要用单独的工序来完成的。苏联赤塔机床厂设计和推广应用的工具组合,它是一把带有四棱刀片的连续切削刀具(在基面上主偏角=45°),在标准刀杆2上(见图示)作出螺纹紧固孔和柱销孔,带中心钻6的支架1紧固在刀杆上,中心钻借助于螺钉4和螺栓5按高度进行微调。由于本体有可换的轴套3,不同直径的中心
In the case of digitally controlled machine tools, single-part or low-volume machining of rotating body parts, the blank end face cutting and drilling center hole is to use a separate process to complete. Design and deployment of a tool for the design and deployment of the Soviet Union’s Chita Machine Tool Plant, which is a continuous cutting tool with a four-sided insert (with a main declination of 45 ° on the base surface), on standard arbor 2 (see illustration) A threaded fastening hole and a pin hole are made. The bracket 1 with the center drill 6 is fastened to the arbor, and the center drill is finely adjusted by the height of the screw 4 and the bolt 5. As the body has a changeable sleeve 3, different diameter center