PCB (Printed Circuit Board) cooling turnover machine

The utility model relates to the field of PCB cooling, in particular to a PCB cooling turnover machine which comprises a barrel and PCB bodies, a supporting column is rotatably installed at the bottom in the barrel through a bearing, an annular base is installed on the outer side wall of the supporting column, a plurality of clamping grooves are formed in the upper end face of the annular base in the circumferential direction of the annular base, the PCB bodies are installed in the clamping grooves in a clamping mode, and the PCB bodies are installed on the PCB bodies. A containing cavity is formed in the bottom of the barrel body, a driven gear is rotationally installed at the bottom in the containing cavity through a bearing, a connecting rod is installed on the upper end face of the driven gear, the connecting rod is installed at the bottom of the supporting column, and a driving gear meshed with the driven gear is installed at the outer side end of the driven gear. Therefore, the PCB body is driven to rot