Unit type 3U case assembly line

The invention discloses a unit type 3U case assembly line. The unit type 3U case assembly line is composed of an annular conveying line, multiple panel assembling workbenches, a material separation mechanism, a case conveying line, multiple case assembling workbenches, an automatic station and a tail sweeping workbench, the panel assembling workbenches are used for assembling panels, the annular conveying line is used for transferring the assembled panels, the material separation mechanism is used for grabbing and placing the assembled panels on the case conveying line, the case conveying line is used for circularly conveying cases, the case assembling workbenches are used for press fitting of guide rails in the cases, installation of back plates and inserted connection of the panels, the automatic station is used for carrying out screw locking, mistake proofing pin insertion and laser marking on the cases, and the tail sweeping workbench is used for labeling the assembled cases and repairing the abnormal cas