Steel ball surface detection device

The utility model discloses a steel ball surface detection device which comprises a detection box and a detection probe, the detection probe is installed at the top in the detection box, a reciprocating lead screw is rotatably connected in the detection box, a lead screw sleeve is in threaded connection with a threaded section of the reciprocating lead screw, a connecting rod is fixedly connected to the outer wall of the lead screw sleeve, and the connecting rod is in threaded connection with the reciprocating lead screw. A limiting rod is fixedly connected to the inner wall of the detection box, the lead screw sleeve is in sliding connection with the limiting rod, a placement plate is fixedly connected to the end, away from the lead screw sleeve, of the connecting rod, a plurality of placement holes are formed in the upper end of the placement plate, and a sliding mechanism enabling the placement plate to slide is installed in the detection box. According to the utility model, the reciprocating lead screw, t