我厂在T617卧式镗床上加工箱体轴孔时,经常遇到有沟槽的轴孔,而T617镗床没有径向进给装置,利用普通镗刀杆镗孔内沟槽十分困难,为此,设计制造了两种镗削沟槽的径向进给刀杆(图1、图2)。图1所示刀杆结构及工作原理:向右扳动手柄2,使滚轮3推动滑套4,联结在滑套4上的楔铁5在刀杆1的轴向槽内向右移动,楔铁5的斜面推动刀头7径向进给。刀头随刀杆旋转的同时,又作径向进给,因而完成切槽动作。切槽结束后,向左扳动手柄2,刀头7在弹簧6的作用 I plant in the T617 horizontal boring machine box axis hole processing, often encountered grooved shaft hole, and T617 boring machine without radial feed device, the use of ordinary boring bar boring groove is very difficult for this , Designed and manufactured two radial feed arbor boring the groove (Figure 1, Figure 2). The structure and working principle of the tool bar shown in Fig. 1: the handle 2 is pulled to the right so that the roller 3 pushes the sliding sleeve 4, the wedge iron 5 coupled to the sliding sleeve 4 moves to the right in the axial groove of the tool bar 1, Iron 5 bevel pushing blade 7 radial feed. Tool with the knife rotation, but also for radial feed, thus completing the grooving action. After the slot is finished, the handle 2 is pulled to the left, and the bit 7 acts on the spring 6