The invention provides a
fluid type contact grabbing linkage self-adaptive
robot finger device and belongs to the technical field of
robot hands. The
fluid type contact grabbing linkage self-adaptive
robot finger device comprises a base, two finger segments, two joint shafts, three sliding blocks, multiple springs, multiple flexible pieces, fluid and the like. According to the
fluid type contact grabbing linkage self-adaptive
robot finger device, fluid drive is utilized to achieve the
coupling and self-adapting combined grabbing function characterized in that
coupling rotation is conducted firstly and self-adaptive grabbing is conducted thereafter, the personate rotation effect is achieved through
coupling rotation, and fingers can hold objects of different shapes and of different sizes in an adaptive manner by means of self-adaptive grabbing; a one-way
solenoid valve is adopted for the self-adaptive
robot finger device so that the feature that the finger bending configuration is kept automatically can be achieved, the objects evacuating under the action of counter-acting force can be grabbed in cooperation with drive movement of mechanical arms, and
instability caused by vibration disturbance in the grabbing process can be prevented as well; the device is simple in structure, and the appearance is similar to that of fingers of hands of people; and the device grabs the objects only when the objects make contact with the fingers, the object grabbing accuracy is guaranteed, and the better position consistency is obtained when the same object is grabbed multiple times.