长江机床厂(宜昌)已试制成功Y4732蜗杆珩齿机,据《机械工人》86年第4期上,该厂范乐键同志介绍,采用插(滚)—热—蜗杆珩,可使淬火后降为8、9级精度的齿轮,稳定地恢复到珩后7级,在贯彻JB179—83渐开线齿轮精度新标准工作中,无疑将发挥其重要作用。范文中指出,蜗杆珩齿虽然能使齿形误差改善,但由于重合度小于2,仍很难避免齿形中凹现泉,因而珩轮最好还需修形。这个问题对于普通蜗杆砂轮磨齿机也同样存在。《齿轮》1985年第5期,郑州机械所黎上 According to the “Mechanical Workers” No. 4 of 86, Comrade Fan Leqian introduced this machine and adopted insert (roll) -heat-worm honing to reduce the amount of quench to 8, 9-level precision gear, stable recovery to Heng 7, in the implementation of JB179-83 involute gear accuracy of the new standard of work, will undoubtedly play an important role. Fan Wenzhong pointed out that although the worm honing can improve the tooth profile error, but the coincidence is less than 2, it is still difficult to avoid the sunken denture, so the honing wheel is best to be modified. This problem also exists for ordinary worm wheel grinding machine. “Gear” No. 5 of 1985, Zhengzhou Machinery Li Shang