Precise three-dimensional direct-drive air floating type motion platform for 4D printing

The utility model relates to the technical field of motion platforms, in particular to a precise three-dimensional direct-drive air-floating motion platform suitable for 4D printing, which comprises a base, a support, an air-floating motion H-shaped component, a Z-axis component and a controller. The support is arranged on the upper end face of the base, the air floating type movement H-shaped assembly is arranged on the base at the lower end of the support, the Z-axis assembly is arranged on the side wall of the center position of the support and located above the air floating type movement H-shaped assembly, and non-contact relative movement between the air floating type movement H-shaped assembly and the Z-axis assembly is achieved through an air floating bearing and an air floating guide rail. And the Z-axis part adopts two high-precision air cylinders to balance gravity and friction force, so that a Z-axis motor moves under the condition of no load. The mechanism is exquisite, and the positioning precisi