of Worm Wheel for Grinding Gear

Abstract:To explore the influence of different factors on gear accuracy in gear grinding system with worm wheel generating method，a kinematic model of worm wheel system is constructed by using the transformation method of spatial coordinate system，and then the spatial trajectory of the gearsurfacegrinding grain is simulated and analyzed.The results show that the radial error of the grinding wheel profile has little effect on the gear accuracy.The tooth profile and helix deviations are mainly affected by the errors of the installation angle，machine tool transmission ratio and tangential grinding wheel profile，and the tooth pitch deviation is mainly affected by the errors of the installation angle and machine tool transmission ratio.Moreover，the accuracy of the gear becomes poorer with the increase of such influencing errors as the tooling error，the profile error of the grinding wheel and the transmission accuracy of the machine tool.