滚丝柱是制造“滚牙”滚丝轮的关键工具。滚丝柱一般分为粗滚丝柱和精滚丝柱,粗、精滚丝柱成组使用。滚丝柱的设计是否合理与制造质量好坏直接影响着滚丝轮的精度和寿命。滚丝轮上的螺纹一般需要滚压两次,先用粗滚丝柱滚压滚丝轮,当螺纹牙型滚压至约2/3全齿高时,换用精滚丝柱继续滚压,使螺纹牙型完全成形为止。一般在设计滚丝柱时,粗、精滚丝柱的螺纹牙型设计如图1所示,a) 为粗 Rolling column is to create “roll teeth” rolling wheel key tool. Rolling cylinders are generally divided into coarse rolling cylinder and fine roller cylinder, coarse, fine Rolling column group use. The design of the roller is reasonable and the quality of the manufacture of a direct impact on the accuracy and life of the roller. Rolling gear on the thread generally need to roll twice, the first rolling roll with thick roller rolling wheel, when the thread profile rolling to about 2/3 full tooth high, with fine Roller continue to roll , So that the complete formation of thread form until. Generally when designing the rolling column, the design of the thread form of the coarse and fine roller columns is as shown in Fig. 1, a) is coarse