Serial-connection robot joint mechanism capable of being bent uniformly

The invention provides a serial-connection robot arm joint capable of being bent uniformly. The serial-connection robot arm joint comprises a joint body, framework wires and driving wires. The joint body comprises a plurality of joint assemblies and clamping blocks which are the same in structure and connected in series, and the joint assemblies and the clamping blocks are provided with a plurality of through holes. The driving wires comprise the local joint driving wire and non-local joint driving wires. The framework wires and the non-local joint driving wires penetrate through the through holes and extend to other joints in rows. The local joint driving wire penetrates through the corresponding through hole and is clamped by the clamping block assemblies, and the driving wires can freely slide in the through holes. The local joint driving wire drives the clamping blocks to move together when moving, the joint assemblies are forced to move as well, and therefore bending deformation of the joint is generated. The movement of the non-local joint driving wires in the through holes does not affect the joint body. The serial-connection robot arm joint capable of being bent uniformly guarantees the robot joint movement range and precision requirements, lowers the complexity degree, brings convenience to dismounting, mounting and maintenance of a robot, and reduces the cost.