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浮动镗孔是一种对称切削。刀片在刀体槽内为间隙配合,可以径向自由浮动,自动对准中心,使两切削刃均匀地负担切削,互相抵消径向抗力,能始终保持刀片中心与工件旋转中心同轴,从而避免了因刀杆刚性不足以及刀杆与工件之间产生偏心所造成的母线误差。浮动镗刀常用于Φ30以上的半精加工和精加工。本文所提到的浮动镗刀,一则是关于负前角浮动镗刀的应用;另一则是将浮动镗刀用于拉铰小孔。这两种工艺方法,经过两年来的生产考验,取得了明显的经济效果。
Floating boring is a symmetrical cutting. Blade in the slot for the gap with the body, you can radial free float, automatically align the center so that the two cutting edges evenly cutting load, offset each other radial resistance, can always maintain the center of the workpiece and the workpiece rotation center coaxial to avoid Due to the lack of rigidity and arbor and workpiece eccentricity caused by the bus error. Floating boring tool commonly used in more than Φ30 semi-finishing and finishing. Floating boring tools mentioned in this article, one is on the negative anterior floating boring tool application; the other is the use of floating boring tool for drawing holes. These two kinds of technological methods, after two years of production tests, have achieved significant economic results.