如图所示为一种自夹紧式切断刀,它结构简单,装夹合理,使用方便,受到工人的欢迎。一、刀具结构由刀杆体、刀垫、调整块、刀片等组成。 1.刀杆体使用45号钢,热处理HRC40～45并发兰。刀体头部强度好是这切刀的主要特点,工作时刀垫,合金刀片和调整块装入刀头槽里,与刀头成为一体。刃磨时把合金力片卸下在刀体外刃磨,因此可以在刀头外以加强筋加强其强度,这是焊接式切断刀难以达到的。 2.调整块使用45号钢制成,热处理HRC40～43并发兰。上部与刀头槽面配合,下部铣有 Shown as a self-clamping cut off knife, it is simple in structure, clamping reasonable, easy to use, welcomed by the workers. First, the knife structure from the knife body, knife pad, adjusting block, blade and other components. 1. Knife body using 45 steel, heat treatment HRC40 ~ 45 and blue. Knife body head strength is the main feature of this knife, the work of the knife pad, alloy blade and adjustment block into the bit slot, and the blade into one. When sharpening, the alloy force blade is removed and sharpened outside the blade body so that the strength can be strengthened by the rib outside the blade tip, which is difficult to achieve by the welding type cutting blade. 2. Adjustment block made of 45 steel, heat treatment HRC40 ~ 43 and blue. The upper part is matched with the groove of cutter head and the lower part is milled