钻削原理当三角圆弧轴在方孔中转动时(如图1),它具有如下特点:1)由于三角圆弧的内接正三角形边长等于方孔的边长,因此无论转成什么角度,圆弧轴始终与方孔内壁贴紧;2)圆弧轴的三个尖角是沿方孔内壁作直线移动;3)当圆弧轴的回转轴心固定时,方孔件将被迫作前后左右的移动,其最大移动量就是内接正三 Drilling principle When the triangular arc axis in the square hole in the rotation (Figure 1), it has the following characteristics: 1) As the triangular arc equilateral equilateral edge is equal to the length of the side of the square hole, no matter what turned into 2) the three sharp corners of the arc axis is along the inner wall of the square hole for linear movement; 3) When the axis of rotation of the arc axis is fixed, the square hole will be Forced around the move, the maximum amount of movement is the inscribed positive three