Mechanical clamping claw capable of stably grasping workpiece

Abstract

The invention provides a mechanical clamping claw capable of stably grasping a workpiece. The mechanical clamping claw comprises clamping arms and elastic pieces, wherein the elastic pieces apply elastic force to enable the clamping arms to rotate for clamping, the clamping degree of the clamping arms is inversely related to the deformation degree of the elastic pieces and then inversely related to the elastic force of the elastic pieces, and the clamping arms rotate for clamping to drive the elastic pieces to steer to enable the elastic force to steer, so that the moment arm of the elastic force is increased. The mechanical clamping claw is used for clamping the workpiece by virtue of the elastic force of the elastic pieces, due to the fact that the clamping degree of the clamping arms isinversely related to the deformation degree of the elastic pieces, when the mechanical clamping claw clamps a large workpiece, the clamping degree is low, the deformation degree is high, namely the elastic force is large, and due to the fact that the moment arm of the elastic force is increased in the rotating and clamping process, the moment arm is small when the mechanical clamping claw clampsthe large workpiece. According to the principle, when the mechanical clamping claw clamps a small workpiece, the moment arm is large while the elastic force is small, so that the clamping force of themechanical clamping claw on workpieces of different specifications is basically the same, and the workpieces are easy to grasp stably.

Description

technical field [0001] The invention relates to the field of mechanical grippers. Background technique [0002] At present, the inventor has developed a mechanical gripper in an undisclosed manner internally, including the main body of the gripper, the second left gripper arm, the left side of the first gripper arm and the right side of the second gripper arm are equipped with transverse springs respectively. One end is installed in the main body of the jaw, and the other end of the spring is installed on the corresponding clamp arm. The spring always provides thrust to the clamp arm to drive the second left clamp arm to close; when the clamp arm clamps the workpiece, the clamping force is completely provided by the spring. [0003] The defect of the prior art is that: the closer the distance between the two clamping arms, the smaller the thrust provided by the spring to the clamping arms, and the harder it is for the clamping arms to grasp the workpiece, so the mechanical j...

AI Technical Summary

Problems solved by technology

[0003] The defect of the prior art is that: the closer the distance between the two clamping arms, the smaller the thrust provided by the spring to the clamping arms, and the harder it is for the clamping arms to grasp the workpiece, so the mechanical jaws tend to be unstable when clamping small workpieces

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