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镶可转位刀片的可调式单边切削钻头(发明证书3284505),系用于结构钢和合金零件深孔的精加工。多边形刀片3置于钻头体1的窝内,用锁紧螺钉2固定。在本体的周边上紧固导向件4。另一可调导向件7,带有磨光的圆头,焊在螺栓6内。螺栓拧入钻头本体,并用止动螺钉5锁紧。当调整钻头尺寸时,松开止动螺钉5,转动螺栓6,改变导向件7的伸出量,然后用止动螺钉5固定。
Adjustable single edged drill with indexable inserts (Certificate of Invention 3284505), for the finishing of deep holes in structural steels and alloy parts. The polygonal blade 3 is placed in the socket of the bit body 1 and fixed with a locking screw 2. The guide 4 is fastened on the periphery of the body. The other adjustable guide 7, with a polished round head, is welded in the bolt 6. The bolt is screwed into the bit body and locked with a set screw 5. When adjusting the size of the drill, the set screw 5 is loosened, the bolt 6 is rotated, the projecting amount of the guide 7 is changed, and then the set screw 5 is fixed.