Contrapose high extractive hole processing for the mach ine processin g and repairing,Ubiquity the sword-tool adjust is difficult to adjust and low -efficiency,The precision is difficult to assure.

• 针对煤矿机械加工、修理中的高精度内孔加工,普遍存在着刀具调整难、效率低、加工精度难以保证的问题,设计了一种多功能调节镗杆。