论文部分内容阅读
在零件上需要倒角的螺孔,一般需两道工序或换一次刀具才能完成,而采用带倒角锪钻的丝锥仪需一次就可加工出螺纹和倒角。这种丝锥的结构如图1。1、丝锥结构特点: 丝锥的下端是一个带倒角切削刃的锪钻,它以丝锥排屑槽定位,能随丝锥同步旋转,并能沿丝锥轴向移动。丝锥上面是一只锥形弹簧和一个调整压力的螺母,锥形弹簧两端分别以倒角锪钻和调整螺母的凸缘定位。凸缘
The need to chamfer the screw holes in the parts, the general two-step process or for a tool to be completed, and the use of chamfering tap drill taps need to be machined once the thread and chamfer. The structure of this tap is shown in Figure 1.1. Tap Features: The lower end of the tap is a tap drill with a chamfered cutting edge, which is positioned with tapped flutes and rotates synchronously with the tap and moves axially along the tap . Above the tap is a conical spring and a pressure-adjusting nut, with conical springs positioned on either side of the chamfering drill and adjusting nut flanges, respectively. Flange