The conventional design method of external gear shaper cotter is improvedin this peper. The design efficiency is greatly developed, and the design time is shortened 2/3.

• 本文对外齿轮插齿刀常规设计方法加以改进，克服了常规设计的试凑法，使设计效率大大提高，设计时间缩短2／3左右。