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在车床上加工多头螺纹或蜗杆,利用挂轮齿数分头时,分头挂轮应转过的齿数Z_f(以下简称分头齿数Z_f),计算方法在一些技术手册书籍中已有不少介绍,其中较有代表性的三个计算公式如下。主轴挂轮应转过的齿数=主轴挂轮齿数/工件螺纹头数…(a) 丝杠挂轮应转过的齿数 =丝杠挂轮齿数/工件螺纹头数×挂轮比…………(b) 丝杠挂轮应转过的齿数 =工件螺距/丝杠螺距×丝杠挂轮齿数……(c)
In the lathe processing long thread or worm, the use of the number of teeth off the gear, the number of teeth should be transferred from the gear Z_f (hereinafter referred to as the number of teeth Z_f), calculation methods in some technical manuals books have been introduced, of which more The three representative formulas are as follows. The number of teeth that the main shaft should be rotated = the number of teeth on the main shaft / the number of threads on the workpiece ... (a) Number of teeth that should be transferred by the lead screw. = Number of teeth on the screw / Number of threads on the workpiece. (b) Number of teeth to be rotated by the lead screw = work piece pitch / lead screw pitch × number of gear teeth of the lead screw ... (c)