Patent ID: 8544359

Claim:
A robot arm assembly, comprising: a first shaft base defining a first through hole along a longitudinal axis; a second shaft base defining a second through hole, the second shaft base rotatably connected to the first shaft base; a wire harness; and a clamping mechanism for clamping the wire harness, the clamping mechanism comprising a main body connected to the second shaft base, and a locking member engaged with the main body, wherein the second shaft base rotates relative to the first shaft base around the longitudinal axis, the main body comprises a clamping portion on an end thereof, and the clamping portion is capable of radial deformation, the clamping portion forms an outer conical surface, and defines a plurality of axial slits in the outer conical surface; the locking member comprises an inner resisting surface resisting the outer conical surface to generate a radial deformation of the clamping portion to clamp the wire harness; and the wire harness extends through the first through hole, the second through hole, and then the clamping mechanism.