钻头的刃背过去是在铣床上用分度头和挂轮的方法加工出来的。这种方法只能单件进行,生产效率很低,所以我们设计了一个附加装置和简单的固定托架,同时装在铣床上,然后把钻头上已经铣好的螺旋沟作为靠模进行加工。 Drill bit back in the past is used in milling machines with indexing head and the method of processing out of the wheel. This method can only be carried out in one piece, and the production efficiency is very low. Therefore, we designed an additional device and a simple fixed bracket, which are mounted on a milling machine and then processed the spiral groove that has been milled on the drill bit as a master.