Shearing device and using method thereof

The shearing device comprises a supporting table, a supporting base is arranged on the left side of the top of the supporting table, a transverse fixing base is arranged on the top of the right side of the supporting base, shearing equipment is fixedly installed on the right side of the bottom of the transverse fixing base, and moving grooves are formed in the front face and the back face of the transverse fixing base correspondingly; and moving blocks are slidably connected into the moving grooves, shielding plates are fixedly mounted on the outer sides of the moving blocks, and fixed guide rails are fixedly mounted on the right sides of the front face and the back face of the supporting table correspondingly. The protective structure is additionally arranged at the machining position, the side face of a workpiece can be protected and shielded when the workpiece is sheared, it is effectively guaranteed that chippings generated when the workpiece is machined cannot splash, harm to machining personnel is avoid