Push rod mechanism for bearing ring lapping machine

The utility model provides a push rod mechanism for a bearing ring lapping machine. The push rod mechanism comprises a push rod, a sleeve, a lower cover and an eccentric wheel, wherein the push rod can slide in the sleeve to adjust up-down strokes; the bottom of the sleeve is sleeved with the lower cover, the lower cover is in threaded connection with the bottom of the sleeve, and the bottom of the lower cover makes contact with the eccentric wheel; the top of the push rod is provided with a V-shaped groove, and it can be guaranteed that the top of the push rod can make effective contact with the bottom of a pipe or a ferrule. The push rod mechanism is simple and has fewer components, and the cost burden caused by complex components for an enterprise is effectively avoided; the push rod mechanism has fewer and better components, is reliable in operation and extremely low in maintenance cost when used in the enterprise and effectively guarantees that no high maintenance cost is caused for the enterprise using the push rod mechanism; the push rod mechanism is convenient to use, can be operated easily by any person and will not bring an unbearable safety risk to the enterprise.