Universal joint bearing production elevator

The invention provides a universal joint bearing production elevator. A rack is provided with a conveying rail, the tail end of the conveying rail is provided with an elevating channel, and the middleportion of the conveying rail is provided with a surface recognition mechanism, the tail end of the conveying rail communicates with an inclined inlet, the center of the elevating channel is providedwith a cylindrical cavity, and the inclined inlet communicates with the lower portion of the cylindrical cavity, the bottom end of the cylindrical cavity is provided with a first induction switch, avertical through hole is formed in the elevating channel in the center of the bottom end, the bottom of the elevating channel is provided with a first pressurization block, the first pressurization block is internally provided with a vertical cone-shaped through groove, the vertical through hole communicates with the vertical cone-shaped through groove, the vertical cone-shaped through groove communicates with a first air c