我厂生产的车床用纵横溜板其斜铁调整沉孔如图1所示。过去一直采用专制锪刀加工,锪刀用两片硬质合金镶刃制得,制造工艺复杂。由于被加工件的底孔较小,并且是断续切削,对锪刀的导向小圆柱抗力较大,因此,极易折断损坏。现在我们采用外径与锪孔直径相 I plant the lathe with vertical and horizontal slide their inclined iron sink hole adjustment as shown in Figure 1. The past has been the use of tyrannical trowel processing, trowel with two carbide inserts obtained, the manufacturing process is complex. As the bottom hole of the workpiece to be processed is small, and is intermittent cutting, trowel guide cylinder resistance is large, so easily broken damage. Now we use outer diameter and countersink diameter phase