Movable tunnel lining repairing device based on 3D printing technology

The utility model discloses a movable tunnel lining repairing device based on a 3D printing technology. The device comprises a computer auxiliary module, a CT scanning module and a 3D printing module, the CT scanning module is connected with the computer auxiliary module, and the computer auxiliary module is connected with the 3D printing module; the 3D printing module comprises a 3D printer, a conveying pipe, a consumable tank and a multidirectional printing arm; the 3D printer is connected with the consumable tank through the material conveying pipe, and the multi-direction printing arm is installed on the 3D printer. And a printing head or a milling cutter can be mounted at the end part of the multidirectional printing arm. The device has the advantages of being high in repairing efficiency, material-saving, economical and environment-friendly; formwork supporting is not needed in the whole repairing process, and the repairing period is remarkably shortened; and secondary damage to the lining is small, and