Device for measuring height of center of inner circle of ball cage holder

The utility model relates to the technical field of ball cage holder detection, in particular to a device for measuring the center height of an inner circle of a ball cage holder, which comprises a mounting frame, a workpiece mounting seat, a horizontal sliding table and a first measuring tool are arranged on the mounting frame, and a measuring head of the first measuring tool is abutted against the horizontal sliding table along the vertical direction. An adjusting knob, a second measuring tool and a rotating plate are arranged on the horizontal sliding table, the adjusting knob is used for adjusting the horizontal sliding table to be close to or away from the workpiece mounting base, a measuring head of the second measuring tool abuts against one end of the rotating plate, and a horizontal contact used for abutting against the inner circle surface of the workpiece is arranged at the other end of the rotating plate. The device for measuring the center height of the inner circle of the ball cage holder provid