Feeding track of cavity engraving and milling machining center

The utility model discloses a feeding track of a cavity engraving and milling machining center, and relates to the technical field of machining center manufacturing, the feeding track comprises a base and sideboards, the left side and the right side of the upper surface of the base are fixedly connected with the sideboards, the base is internally provided with a first cavity, the interiors of the two sideboards are both provided with a second cavity, and the first cavity and the second cavity are communicated with each other. The upper sides of the inner walls of the two second cavities and the left side and the right side of the lower portion of the inner wall of the first cavity are jointly and fixedly connected with threaded rods, the upper sides of the rod walls of the two threaded rods are both in threaded connection with nuts, and the surfaces of the opposite sides of the two nuts are both fixedly connected with sliding blocks. When the feeding device is used for feeding, fed materials can be controlled