HFT调整卡是美国GLEASON公司的弧齿及准双曲线齿轮调整卡的一种。其特点是大轮用高效成形圆弧拉削法,断续分度,同时精拉出轮齿的两侧齿面;小轮是在具有刀盘主轴能够倾斜的机床上,利用展切的方法,分别精铣轮齿凹凸两侧齿面,这种切削方法称之为“半滚切”(FORMATE)。 按小轮切削方法,半滚切分为三种:一是刀倾半滚切(HFT,SFT);二是变性半滚切,小轮精加工是在具有滚切变性机构的机床上分别滚切出轮齿的凹凸两侧齿面(HFM,SFH);三是普通半滚切,小轮精加工是在普通弧齿滚切机床上,分别 HFT adjustment card is the United States GLEASON arc teeth and hypoid gear adjustment card. The utility model is characterized in that the large round is cut and formed by circular arc broaching with high efficiency, and the fine tooth is pulled out on both sides of the gear teeth; the small wheel is a machine tool capable of tilting the main shaft of the cutter head, , Respectively, finished gear teeth on both sides of concave and convex tooth surface, this cutting method is called “semi-roll cut” (FORMATE). According to the small wheel cutting method, the semi-roll is divided into three types: one is the semi-tangential cutting (HFT, SFT); the other is the semi-semi-tangential cutting. The finishing of the small- Cut out both sides of the gear tooth profile (HFM, SFH); Third, ordinary semi-Hob, the small round finishing is in the ordinary arc hobbing machine, respectively