Bearing machining fixing device

The utility model relates to the technical field of bearing machining, and discloses a bearing machining fixing device which is characterized in that a driving groove is formed in one side of the upper end face of a base, a lead screw is rotationally arranged between the inner walls of the two sides of the driving groove, a sliding seat is arranged on the outer wall of a rod body of the lead screw in a threaded and sleeved mode, and the lower end of the sliding seat is fixedly connected with a limiting sliding block; a limiting sliding groove is formed in the lower end face of the interior of the driving groove, a movable rod is fixedly connected to the upper end face of the sliding seat, a fixed rod is fixedly connected to the side, away from the driving groove, of the upper end face of the base, and a rotating seat and a rotating rod are rotationally arranged on the opposite sides of the movable rod and the fixed rod correspondingly; and rotating plates are fixedly connected to the opposite sides of the rot