Stable and efficient intelligent assembly manipulator for bearing machining

The stable and efficient bearing machining intelligent assembling mechanical arm comprises a fixed seat and a movable seat, a second cavity is formed in the inner surface of the lower end of the movable seat, an air cylinder is fixedly installed at the top of an inner cavity of the second cavity, and the extending end of the air cylinder is fixedly connected with a second piston; a third piston is arranged at the lower end of an inner cavity of the second cavity, and a first ball head push rod is fixedly connected to the bottom of the third piston. Through the action of an electric push rod, a movable seat, a clamping seat, an air guide pipe, an arc-shaped top plate, a first cavity, an arc-shaped clamping plate, a second cavity, a connecting rod, a first piston, an air cylinder, a second piston, a third piston, a first ball head push rod, a second ball head push rod, a groove and a spring, the problem that most of existing assembly manipulators clamp outer rings of bearings; the problems that the inner ring a