这是一种特殊用途的在优质高速主轴的立铣床上为磨削精确的圆周半径上的凹面或凸面用的夹具(见图)。主要由底板、转动环和与手柄相连的摆动顶板所组成。顶板可相对于中心点(支点)作广泛地调整,通过沿板上一系列的埋头孔可以调整到所要求的磨削半径,沿着板的长度方向在任何位置的同一排螺纹孔是用于夹紧工件 This is a special purpose fixture for grinding a concave or convex surface with an accurate circumferential radius on a high-quality, high-speed spindle end mill (see picture). Mainly by the bottom plate, rotating ring and connected with the swing swing top plate composition. The top plate can be widely adjusted with respect to the center point (fulcrum) and can be adjusted to the required grinding radius by a series of counterbores along the plate with the same row of threaded holes at any location along the length of the plate for Clamp the workpiece