滚刀在万能工具磨床上刃磨时应用磨轮的锥面磨削。这样滚刀前面与磨轮在理论上为线接触,可避免滚刀的螺旋面受到伤害。事实上,当滚刀沟槽的螺旋角较大时,磨轮的锥面难以做到与滚刀前面为线接触,因而造成滚刀螺旋前面与磨轮产生干涉,致使滚刀前面不平直(一般多为滚刀前刃面中间凸起)。滚刀沟槽的螺旋角越大,干涉就越严重,滚刀前面的不平直现象就越突出。在实际生产中,在工具磨床上刃磨螺纹升角较大 Hob in the universal tool grinding machine grinding wheel cone grinding. This hob in front of the wheel and the wheel in line for the line of contact, to avoid hob helical injury. In fact, when the helical angle of the hob groove is large, it is difficult for the conical surface of the grinding wheel to be in line contact with the front of the hob, thereby causing the front of the hob spiral to interfere with the grinding wheel, causing the front of the hob not to be straight Mostly in the middle of the rake front raised). The larger the helix angle of the hob groove, the more serious the interference is. The more uneven the front of the hob is. In actual production, grinding tools in the tool grinding angle larger