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通常,齿輪滚刀的侧铲螺旋面与砂輪錐面不能共軛于直母线上,因此在用这种砂輪铲磨滚刀时便产生了齿形誤差。本文分析了在铲磨滚刀左右齿形时所需的砂輪截形(盘形、碟形、及指形)。给出了与之有关的計算方程。此外,文中还討論了滚刀铲磨时存在的齿形誤差,包括铲磨方法本身所固有的誤差和因砂轮直徑改变而引起的誤差。通过分析計算,指出了在数值上后者比前者为大,且前一誤差难以消除,但通过对砂輪截形的修正,其值可以变得很小;而后一誤差則通过对所采用的直徑不同的砂輪进行修正就可以消除。
Normally, the helical surface of the side shovel of the gear hob and the conical surface of the grinder can not be conformed to the straight busbar, so a toothed error occurs when the hob is used to scoop the hob. This article analyzes the truncation (disc shape, disc shape, and finger shape) of the grinding wheel required to grind the left and right teeth of the hob. The related calculation equations are given. In addition, the paper also discusses the tooth profile error when hobbing, including the inherent error of the method and the error caused by the change of the diameter of the wheel. Through the analysis and calculation, it is pointed out that the latter is larger in value than the former, and the former error is difficult to eliminate, but its value can be made small by correcting the wheel truncation. The latter error is obtained by comparing the diameter Different grinding wheel can be amended to eliminate.