Automobile synchronizer gear ring detection device

The utility model relates to the technical field of synchronizer gear ring processing devices, in particular to an automobile synchronizer gear ring detection device, which comprises a working table, a circular groove is concavely arranged in the middle of the working table, and arc-shaped tables which can move vertically and are used for placing gear rings are symmetrically arranged in the groove. According to the utility model, after the gear ring is placed on the detection device, the positioning table with the same radian as the inner cambered surface of the gear ring is used for longitudinally abutting against and positioning the gear ring, the arc-shaped table can be lifted by using the elastic force of the first reset spring below the arc-shaped table after detection, and the gear ring is lifted out to be conveniently taken out; meanwhile, the abutting table on the circular truncated cone extends into the gear ring, the abutting table firmly abuts against the inner wall of the gear ring through the ela