Workpiece batch exchange mechanism for production line

The utility model relates to the technical field of production line equipment, in particular to a workpiece batch exchange mechanism for a production line, which is fixedly arranged on one side of a track transmission mechanism and comprises a pair of longitudinally arranged telescopic columns, fixed sections of the two telescopic columns are fixedly connected with the ground, and a stabilizing cross beam is arranged between the fixed sections of the two telescopic columns. The stabilizing cross beam is provided with a synchronous driver used for driving the telescopic sections of the two telescopic columns to ascend and descend synchronously. Transverse sliding supporting seats are arranged on the tops of the telescopic sections of the two telescopic columns, lifting supporting arms are arranged on the tops of the transverse sliding supporting seats in a matched mode, and the lifting supporting arms are in sliding fit with the transverse sliding supporting seats through telescopic air cylinders. And the supp