Research on tooth profile analyzing and manufacturing for roller(ball) enveloping circular worm

The coordinate system for meshing theory analyzing of roller (ball) conjugated worm drive has been set up and based on this coordinate system the equation of worm tooth profile is induced. The accurate modeling for worm tooth profile is worked out with the software of SolidWorks. Based on the principle of worm to worm wheel meshing, the enveloping methods of manufacturing the worm by flyblade and grinding the worm by ball end grinding wheel have been put forward. Finally the manufacturing of the worm has been also completed.