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一、普通攻丝的要害问题我们通常采用的攻丝方法,虽然在大多数情况下可以满足加工的要求.但是在许多特定的条件下,这种攻丝方法存在着许多难以解决的问题。这些问题主要表现在: 1.在难加工材料上加工M3以下的螺丝时由于排屑比较困难,常常折断丝锥。有时为了改善排屑状况不得不反复进退丝锥以促进排屑。所以攻丝效率低,并且难于实现自动化攻丝。 2.在难加工材料上加工M10以上螺丝时,丝锥的寿命短,效率低。 3.普通加工方法加工出的螺纹齿型不规则、精
First, the key issues of ordinary tapping We usually use the tapping method, although in most cases to meet the processing requirements, but in many specific conditions, this tapping method, there are many unsolved problems. These problems are mainly manifested in: 1. In the difficult processing of materials on the M3 below the screw as chip evacuation more difficult, often broken tap. Sometimes, in order to improve chip evacuation conditions have repeatedly taps to promote chip removal. Therefore, tapping efficiency is low, and it is difficult to realize automatic tapping. 2. In the difficult processing of materials M10 above the screw, the tap life is short, low efficiency. 3. Ordinary processing methods processed irregular tooth shape, fine