The slide block slot and back taper are the main parts of automotive synchronizer gear sleeve.Because of the gear sleeve is inner surface and the surface shape is complicated

it is difficult to process.Firstly

the machining technology current situation of the slide block slot in the world is introduced.Secondly

the machining method based on the principle of cycloid rotational indexing is introduced and the theoretical machining error is analyzed from the mathematical model.Then

the mathematical model of flying cutter for cutting slide block slot is established.With the independent intellectual property rights of rotational indexing on NC machine tool

on the basis of general indexable cutter in market

the special cutting tool of the gear sleeve slide block slot is designed.Through practice test

it is proved that the cutting tool is suitable.