Linear cutting piece connecting device

The invention discloses a linear cutting piece connecting device. The linear cutting piece connecting device comprises an operation table, mounting plates and a device bin, supporting legs are mounted at the four corners of the bottom of the operation table, the mounting plates are mounted at the two ends of one side of the top of the operation table, and clamping mechanism assemblies are mounted on the sides, close to the operation table, of the mounting plates; the device bin is mounted on the side, away from the mounting plates, of the bottom of the operation table, a lead screw penetrates through the bottom of the interior of the device bin, the outer side of the lead screw is sleeved with a U-shaped plate, and the U-shaped plate penetrates through the operation table. According to the linear cutting piece connecting device, a sliding plate is obliquely arranged, and an elastic plate is arranged in a groove in a baffle, so that when a workpiece falls off, the workpiece can slide to a first protection plate along the sliding plate and collides with the elastic plate, the elastic plate can protect the workpiece, and the phenomenon that the workpiece is prone to damage is avoided; and in addition, falling protection can be conducted on workpieces of different sizes, and the elastic plate can be conveniently maintained or replaced.