这种扩孔钻用于精密深孔的扩孔加工。它以T15K6硬质合金刀片作刀头。加工过程中,刀具的导向由安装在切削刃后边的能自动调节的导向装置1来完成。这些导向装置组成了一个旋转体,它们松动地安装在滑块2的孔座里,滑块2安装在刀体上的斜槽中。加工时,安装在机床主轴中的专用键杆上的扩孔钻旋转,而装夹在夹具中的工件朝尾座方向移动,于是实现了进给。采用这种扩孔钻能提高加工精度,同时刀具的耐用度可提高0.5—1倍。 This reamer for deep hole reaming precision machining. It is T15K6 carbide blade blade. During machining, the guidance of the tool is accomplished by a self-adjusting guide 1 mounted on the rear edge of the cutting edge. These guides form a body of rotation, which are loosely mounted in the socket of the slider 2 which is mounted in a chute on the body. During machining, the reamer mounted on the special key rod in the spindle of the machine tool is rotated, and the workpiece clamped in the fixture is moved toward the tailstock, thus realizing the feed. Using this reamer can improve the machining accuracy, while the tool durability can be increased 0.5-1 times.