对于带沉槽孔的箱体加工,由于镗床没有切沉槽的传动装置,比较困难。为此,设计制造了箱体沉槽加工刀杆,具有结构简单、使用方便、工作可靠等优点,既适于镗工、钳工操作,又可机动和手动。刀具结构如图所示。箱体是一组已加工的φ40H7孔,在孔中穿进刀杆8,刀杆方孔内装有切刀1,刀尖 For the box with sink hole processing, because the boring machine without sinking gear, more difficult. To this end, the design and manufacture of tank sinking cutter arbor, with simple structure, easy to use, reliable work, etc., both for boring, fitter operation, but also motorized and manual. Tool structure as shown. Box is a group of φ40H7 holes have been processed in the hole into the arbor 8, cutter arbor equipped with a cutter 1, the tip