Modern manufacturing has transformed into small-scale, multi-species, high-precision, the traditional gear hob design methods were not suited to modern requirement. Different types of hobs require different software system, which has brought much inconvenience to our design. Here, according to the different hob design principles and existing software systems, there are two problems to be solved:First, the hob unified design model has been raised so that different hob designs are unified into software, which...