Two-degree-of-freedom differential reciprocating push device

The utility model discloses a two-degree-of-freedom differential reciprocating push device. The push device comprises a rack, and further comprises a planetary gear train mechanism, a driving mechanism and a cam link mechanism that are arranged on the rack, wherein the planetary gear train mechanism comprises a planetary carrier and is connected with the driving mechanism by the planetary carrier; a synchronous belt differential mechanism is arranged at one end of a central shaft of a planetary gear; the cam link mechanism is arranged at the other end of the central shaft of the planetary gear; the cam link mechanism is connected with the planetary carrier; and a power output end of the synchronous belt differential mechanism is connected with a pushing hand mechanism. According to the two-degree-of-freedom differential reciprocating push device, each moving member directly converts input rotary motion to reciprocating motion in a rotary motion form to avoid using a guide rail and a slide block to directly drive goods, and the push device can operate stably at a higher speed and provides convenience for ensuring packaging quality and increasing packaging speed of packaging machinery.