Automatic switching feeding mechanism for multiple layers of trays

The utility model relates to the technical field of industrial automation equipment, and provides a multi-layer tray automatic switching feeding mechanism which comprises a supporting frame, the horizontal linear direction is set as the x direction, and the supporting frame is sequentially provided with a first tray containing station and a second tray containing station in the x direction. Tray lifting tables are arranged at the bottom of the first tray containing station and the bottom of the second tray containing station correspondingly, the tray lifting tables are provided with lifting mechanisms used for driving the tray lifting tables to ascend and descend, and the supporting frame is provided with a pair of linear conveying mechanisms. The linear conveying mechanisms are arranged in the x direction and located on the two sides of the first tray containing station and the two sides of the second tray containing station respectively, the linear conveying mechanisms are each provided with a clamping devi