Study on the Grinding of Noncircular Gears with CNC Gear Grinding Machine

According to the mesh theory of noncircular gears, the grinding of noncircular gears on CNC gear grinding machine with conical wheel is studied. The movement relation mathematical models of noncircular gears grinding process are built up. Because the tooth of the noncircular gear is different from each other, their generating length is to be also different. Based on the analysis of the generating and indexing movement, a universal generating length formula of each tooth is proposed. Basic machining parameters of each tooth for these two types of machines are computed by using a practical example. The dynamic simulation of generating track is given. The research results show that the grinding of noncircular gears with CNC conical wheel gear grinding machine is feasible.