Flexible passive catcher with serial bent flexible hinge framework tracked by pneumatic rope

The invention relates to a flexible passive catcher with a serial bent flexible hinge framework tracked by a pneumatic rope. The catcher comprises two fingers which are installed with two serial bent flexible hinges as a framework. The serial bent flexible hinge framework is made of spring steel materials, and the objects are passively caught through the elastic return force of the serial bent flexible hinge framework. The two fingers are driven by a gas cylinder, and the deformation resistance of the serial bent flexible hinge framework can be prevented through enlarging the action force of the five-hinge diagonal double-toggle force amplifier which is frequently used on an injection machine and then driving the track rope of each finger, so that the flexible passive catcher can be stretched. The open degree of the catcher can be controlled through adjusting the pressure of the gas cylinder. The catcher has the advantages of large drive force, wide application range, simple structure, few control target, convenience for maintaining and low requirements on use environments, properties of flexible degree of freedom and buffered action force property, and good flexible adaptability, and can catch the objects of which the shapes and sizes are changed without feedback, and thus can be applied to the technical field of mechanical-electrical integration application of robots.