High-precision milling device

The utility model relates to the technical field of milling devices, in particular to a high-precision milling device which comprises a device frame, a bottom front frame is mounted at the lower end of the device frame, a bottom rear frame is mounted at the rear end of the bottom front frame, and a first movable supporting rod is mounted between the bottom front frame and the bottom rear frame. A first driving assembly is installed at the upper end of the first movable supporting rod, a first movable assembly is installed at the upper end of the first driving assembly, an upper end frame is installed at the upper end of the first movable assembly, and a second movable supporting rod is installed at the center of the upper end frame. According to the utility model, a device capable of carrying out high-precision positioning is designed in the milling device, so that direct observation by naked eyes is avoided, the positioning is more accurate, and when the high-precision positioning device is incessantly neede