Filling device and method for filling micro-texture pits with solid lubricating material

The invention provides a filling device and method for filling a micro-texture with a solid lubricating material. The device comprises a supporting system, a filling system, a multi-station mold rotation system, a locking system, a mold head spacing adjustment system, and a control system. By application of the multi-station mold rotation system and the mold head spacing adjustment system, continuous processing can be implemented, and filling requirements of different sizes and different pitch textures can be satisfied. The device can directly press solid lubricating material into a micro-texture of a workpiece surface, which is a purely physical filling method, without modifying properties of the workpiece. Moreover, the filling device is easily operated, has low requirements on working conditions, is efficient and low-cost, and can be easily automated.