New indexing mechanism for gear cutting using double differential gear device

摘要

The hobbing machine of recent years has positively introduced a computer numerical control (CNC) system, but many traditional hobbing machines with gear trains are still being used to produce gears. These traditional machines generally prepare many indexing change gears for gear cutting. But when we cut the gear of a prime number of teeth, the indexing change gear is not prepared for more than about 100 teeth of the gear.