Belt wheel under-driven robot finger device

Abstract

The invention provides a wheel driving robot finger device, belonging to a robot technical field which comprises a base, a motor, a reducer, a first gear, a second gear, a close joint shaft, a middle part finger, a far joint shaft and a terminal finger section as well as a driver, a transmission part, a driven wheel, a spring part. The middle part finger is sleeved on the close joint shaft. Two terminals of the spring part are respectively connected with the middle and the terminal finger sections. The device uses a pair of wheel mechanisms to sleeve a plurality of active middle part fingers with the decoupling effect of the spring part comprehensively to realize the special effect that the double joints drive the finger to bend so as to catch the objects. With simple structure, reliability, low cost, convenient installation and maintenance, small volume and light weight, the wheel driving robot finger device similar to human fingers is especially suitable for being used as a thumb of the hand of the humanoid robot or a part of other fingers that uses fewer drivers to drive more rotation joints to automatically adjust to catch the objects of different shapes and sizes.

Description

technical field

[0001] The invention belongs to the technical field of anthropomorphic robots, and in particular relates to the structural design of a pulley underactuated robot finger device. Background technique

[0002] Similar to humans, most functions of anthropomorphic robots are realized through hand manipulation, so the hand structure is an important part of anthropomorphic robots, and its design is one of the key technologies of anthropomorphic robots. In order to increase the anthropomorphism of the hand, more joint degrees of freedom should be designed for the hand. However, in order to reduce the control difficulty of the anthropomorphic robot hand, as well as reduce the volume and weight of the hand, it is necessary to reduce the number of drivers. Certain contradictions, in addition, in order to better grasp the object, it is also necessary for the finger to have a certain degree of adaptability when grasping the object. The robot anthropomorphic finger undera...

Images