Variable Stiffness Intelligent Flexible Robot Joint

Nowadays, with the development of the robot industry, more and more robots are being used in medical and other industries. Rehabilitation robots came into being. However, the joint connection of rehabilitation robots and its variable stiffness requirements have become a new problem, and experts at home and abroad are studying materials and structures that can better adapt to the stiffness requirements required for joint connections. This paper aims to design a multi-level structure by using 3D composition software, and it is determined that it conforms to the stiffness change law after simulation analysis. There are two sets of gears with different tooth numbers in this structure, and the bearing in the center of the structure is used to connect the gear to the overall structure, in which the connecting rod is embedded in the groove to fix its movement trajectory and fix the law of the position change of the clamping plate. With this multi-stage structure, it is convenient and accurate to measure the change of stiffness and solve the problem of variable stiffness requirements of flexible robot joints.