Mechanical clamping jaw with protection function

The utility model discloses a mechanical clamping jaw with a protection function, which belongs to the technical field of mechanical clamping jaws and comprises a rectangular plate, a rectangular block is arranged at the upper end of the rectangular plate, clamping jaw bodies are rotatably connected to two ends of the rectangular block through shaft pins, rubber pads are arranged on side edges of the clamping jaw bodies, and fixing pins are arranged on two sides of the rectangular block. According to the utility model, the protection frame is clamped in the positioning grooves and is quickly positioned, the supporting columns are inserted into the mounting holes at the bottom of the protection frame, the fixation firmness is ensured, the pin body is clamped in the pin holes under the elastic force action of the reset springs, and the protection frame and the pin body are clamped in the pin holes, so that the pin body is prevented from falling off. Quick fixing is achieved, and dismounting and using are conven