Mechanical claw with clamping claw number convenient to adjust

The utility model belongs to the technical field of mechanical devices, and discloses a mechanical claw with the number of clamping claws convenient to adjust, which comprises a mechanical arm, the upper end of the mechanical arm is rotatably connected with a first mechanical claw, the surface of the mechanical arm is slidably connected with a sliding block, the outer end of the sliding block is rotatably connected with a second mechanical claw, and the surface of the mechanical arm is provided with a mounting groove. A mounting groove is formed in the middle of the mechanical arm, a mounting block abuts against the inner wall of the mounting groove, a third mechanical claw is rotationally connected to the outer end of the mounting block, a driving assembly is fixedly mounted in the middle of the mechanical arm, a fixing mechanism is arranged at the outer end of the mechanical arm, and an adjusting mechanism is arranged on the inner wall of the mechanical arm. A push block is pulled outwards to drive a stop b