Fluid stepless locking rope spring self-adaptive robot finger device

Abstract

The invention discloses a fluid type stepless locking rope spring self-adaptation robot finger device and belongs to the technical field of robots hands. The fluid type stepless locking rope spring self-adaptation robot finger device comprises a driver, multiple finger sections, multiple joint shafts, multiple joint spring pieces, a transmission mechanism, a tendon rope, a rope pulling piece, a fluid pipeline, a fluid drainable piece, multiple pistons, multiple friction blocks and fluid. The fluid type stepless locking rope spring self-adaptation robot finger device can be used for comprehensively achieving the function of self-adaptation grabbing and continuous synchronous locking of multiple joints. The device is used for grabbing objects and can automatically adapt to the shapes and the sizes of the objects through the joint spring pieces, and the grabbing process is fast and stable; a joint locking manner is adopted after the objects are grabbed, fingers are prevented from rebounding to lose stability, and larger grabbing force is provided; the joint angles which can be locked are continuous, and the multiple joints can be locked synchronously; and the device is simple in structure, easy to control and low in design and manufacturing cost.

Description

technical field [0001] The invention belongs to the technical field of robot hands, in particular to a structural design of a fluid type stepless locking rope spring self-adaptive robot finger device. Background technique [0002] The robot hand is one of the most important components of the robot, and key technologies such as the structural design and function improvement of the robot hand are crucial to the robot. Existing robot hands can be mainly divided into anthropomorphic hands and non-anthropomorphic hands, both of which have a very wide range of applications. Because the human hand is very flexible and powerful, it has great research and learning value in bionics, and the development of anthropomorphic robot hands has great prospects. The current anthropomorphic robotic hands are mainly divided into industrial grippers, dexterous hands and underactuated hands. [0003] On the one hand, the robot hand needs to grasp, carry and manipulate complex objects of differen...

AI Technical Summary

Problems solved by technology

[0008] 2) The device is difficult to provide a wider range of gripping force

[0009] 3) The joint spring with too large stiffness coefficient may cause the fingers to quickly collide with the object when grasping the object, resulting in the instability of the squeezed object

[0010] 4) The device may fail to grasp when used in a vibrating environment

Because the teeth of the ratchet have a certain pitch, the locking is discontinuous; if the pitch is designed to be large, the locking accuracy will be reduced, and if the pitch is designed to be small, the tooth height will be reduced, affecting the locking effect

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