The invention discloses a
translational motion idle-
stroke transmission coupled and self-adaptive
robot finger device and belongs to the technical field of
robot fingers. The
translational motion idle-
stroke transmission coupled and self-adaptive
robot finger device comprises a base, two finger sections, two joint shafts, a driver, a transmission mechanism, three gears, three racks, two spring pieces, two shifting levers and two convex blocks. The
translational motion idle-
stroke transmission coupled and self-adaptive
robot finger device achieves the coupled and self-adaptive combined grabbing mode integrally, the two joints can be linked to pinch an object with the
tail ends, the actions highly simulate human beings, and besides, the first finger section can be rotated to touch the object firstly, and then the
second finger section is rotated to cover and hold the object, so that the effect of self-adaptive grabbing of objects with different shapes and dimensions is achieved. According to the device, transmission is precise and stable, and grabbing is stable and reliable; the two joints are driven through only one driver instead of complex sensing systems and real-
time control systems; and meanwhile, the translational motion idle-stroke transmission coupled and self-adaptive
robot finger device is simple in structure, short in transmission chain, small in number of parts, small in size, low in weight, easy to assemble and low in manufacturing cost.