等螺旋角锥度立铣刀,是国内外一致公认的优质、高效刀具。但是,由于制造困难,影响了推广应用。为此,我们采用普通卧式铣床,在其挂轮架上增加一对等直径皮带轮,利用在一对轮上缠绕皮带来改变传动比,达到等螺旋角的简单加工方法。经使用证明,此法简单、易行,效果较好。等直径皮带轮绕带的作用:如图1所示,当甲轮上所绕之n圈皮带;全部过渡到乙轮上,不难看出:1.两轮旋转 Spiral cone angle cutter, is recognized at home and abroad consistent high-quality, efficient tool. However, due to manufacturing difficulties, affecting the promotion and application. To this end, we use an ordinary horizontal milling machine, in its hanging wheel frame to increase a pair of equal-diameter pulley, the use of a pair of wheels wrapped in the belt to change the transmission ratio, to achieve a simple helix angle machining. The use of proof, this method is simple, easy to perform better. Equal diameter belt around the role of the belt: As shown in Figure 1, when the A round around the n-ring belt; all the transition to the second round of the wheel, is easy to see: 1. Two rounds of rotation