Novel clamping mechanism

The utility model relates to the technical field of clamps, and discloses a novel clamping mechanism which comprises a shell, a clamping assembly is arranged in the shell, the clamping assembly comprises a positive and negative screw rod arranged in the shell, clamping plates are oppositely arranged on the upper portion of the positive and negative screw rod, a base is arranged at the bottoms of the clamping plates, and the positive and negative screw rod is sleeved with the base. And clamping blocks are arranged on the two clamping plates. The servo motor is adopted to drive the positive and negative thread lead screw to clamp through the belt, the torque can be adjusted, the stroke is lengthened, the workpiece cannot be damaged by clamping, the workpiece clamping problem of a client is solved, the cost is saved, the working efficiency is improved, the torque can be adjusted in the mode that the servo motor is driven and the belt drives the lead screw, and the workpiece is prevented from being damaged by cla