Research On Spherical Involute Spiral Bevel Gear Machining Simulation Based On General NC Machine Tools

The tooth surface equation of spiral bevel gear is the main part of the spiral bevelgear model design process. In recent years, based on the the spiral bevel gear researchachievements, we divided the research progress of tooth surface equations into twocategories: traditional method and theoretical method of spherical involute. At the sametime, we are described the tooth fillet surface easily ignored in previous studies. Inaddition, summarizing the key links and thought of all the derivation process and carriingon the comparison and analysis. Provide ideas for the spiral bevel gear design andmanufacturing.The spherical involute theory is applied to the modeling of the spiral bevel gear.Forming principle of spherical involute tooth. Starting from the exact shape of toothsurface, using the theoretical derivation of the parametric equation in each section curveto form complete tooth profile and tooth shape line, line, curve, and the transition curveare derived and processing optimization. Then use UG twice development platform, usingUG GRIP language to complete by the end of spherical involute tooth profile curveparameters along the tooth line sweep the precise model. Then, according to the gearmodel output in twice development, propose optimization solution for surfacereconstruction, and using the UG GRIP language to complete the program once again,provided the conditions for the design and manufacture of spherical involute spiral bevelgear. According to the modeling results of multi axis NC machining simulation of spiralbevel gear, and calculation for cutting and tool path. In post processed, we use UG postprocessing module output the G code. Finally, using three NURBS curve accurately fittedon the processing of tooth surface and further improve the machining accuracy.