Four-side saw device with secondary positioning mechanism

The invention discloses a four-side sawing device with a secondary positioning mechanism, which comprises a workbench structure, and the workbench structure comprises a first workbench, a second workbench and a connecting structure arranged on the lower sides of the first workbench and the second workbench. A self-adaption mechanism used for adjusting the distance between the first workbench and the second workbench is further arranged on the lower side of the workbench structure, and secondary positioning mechanisms are arranged at the ends, on the same side, of the first workbench and the second workbench correspondingly. Two separated secondary positioning mechanisms are adopted for limiting a door plate, only one air cylinder is adopted for driving, the number of parts is reduced, the first connecting frame and the second connecting frame are made to be close to or separated from each other through rotation of the adjusting screw rod, the distance between the first connecting frame and the second connecti