Evaporative pattern precision forming device and forming method thereof

The invention relates to the technical field of electric power engineering, and discloses an evanescent mode precise forming device which comprises a box body, fixing blocks are fixedly connected to the left side and the right side of the interior of the box body, sliding blocks are slidably connected to the left side and the right side of the bottom of the box body, and the tops of the two sliding blocks penetrate through the corresponding fixing blocks correspondingly; the tops of the sliding blocks are fixedly connected with pressing pieces, and the bottoms of the sliding blocks are fixedly connected with connecting columns. A mold is placed in an embedded box, a pressing piece extrudes a fixing block to be stably fixed, a plurality of inserting blocks are inserted in a matched mode to fix the mold, a rack drives a gear to rotate, a threaded rod rotates along with the gear, a supporting plate drives a discharging barrel to move to a proper position, a valve is opened, the mold is poured through a dischargi