在车床上镗削深盲孔时,极易发生打刀和孔壁振痕,产生这些不良现象的主要原因是镗刀的刚性和排屑问题。为此,我们设计了如图所示的偏心套夹具,将麻花钻固定到走刀架上,用于镗削深盲孔,取得了良好的效果。1 偏心套夹具结构与原理(见附图)该夹具由夹紧螺栓1、夹具体2、偏心套3组 Bored in the lathe deep blind hole, prone to hit the knife and hole wall vibration marks, the main reason for these adverse phenomena is boring knife rigidity and chip removal problems. To this end, we have designed the eccentric sleeve fixture as shown in the figure, which fixes the twist drill to the turret, which is used for boring deep blind holes and has achieved good results. 1 eccentric sleeve fixture structure and principle (see photo) The fixture by the clamping bolt 1, clamp body 2, eccentric sleeve 3 group