Multi-claw clamp holder capable of automatically enveloping, clamping and rebounding

The tail end of a third joint of a clamping jaw is of a half-gear structure, when an object is clamped, the third joint rotates around a shaft under the action of a cylindrical middle shaft rack, the upper end of a second joint of the clamping jaw is connected with the cylindrical middle shaft rack through a connecting rod, and the third joint rotates around the shaft under the action of the cylindrical middle shaft rack; in the clamping process, the translational motion of the cylindrical middle shaft rack drives the second joint to rotate around the shaft, the rotation of the second joint and the third joint around the shaft achieves the large-angle and large-range opening and closing of the clamping device, and the multi-claw clamping device can effectively and stably clamp objects of different shapes in different forms. In the process that the multi-claw clamping device clamps a moving object, the first joints of the clamping claws can automatically envelope inwards so that the moving object can be better