我们在模具制造中,形如弹簧窝座的盲孔很多,均要在镗床上加工,尺寸大多数在φ40～φ100mm。在以前加工时,每种规格,每次加工都要用附件才能完成,更换刀具麻烦,调整也不方便,劳动强度大。为此设计了如图所示的盲孔镗刀,它由锥柄镗刀体、直角弯刀头和紧定螺钉组成。本镗刀结构简单、制造容易、安装方便,调整范围广。经过我们近一年的使用,对直径φ30 We are in the mold manufacturing, the shape of a large number of blind holes such as spring socket, are boring machine processing, most of the size φ40 ~ φ100mm. In the previous processing, each specification, each processing must use attachments to complete, change the tool trouble, adjustment is not convenient, labor-intensive. To this end, a blind hole boring cutter as shown in the figure is designed, which is composed of a taper shank boring cutter body, a right angle cutter head and a set screw. The boring cutter structure is simple, easy to manufacture, easy to install, adjust a wide range. After nearly a year of our use, the diameter of φ30