3D graphite die tool capable of being doubly fixed

The utility model relates to a 3D (three-dimensional) graphite die tool capable of being doubly fixed. Tool platform, a positioning boss for placing a graphite blank is arranged on the top surface ofthe tool platform; the positioning boss is provided with a plurality of adsorption through holes for adsorbing the graphite blank by virtue of vacuum suction force; a positioning clamp used for fixinga graphite blank is further arranged on the outer side of the periphery of the positioning boss, and the positioning clamp comprises fixing flanges located on the left side and the rear side of the positioning boss and side fixing blocks located on the front side and the right side of the positioning boss. According to the utility model, the graphite blank is fixed through the cooperation of vacuum adsorption and the side fixing block, so that the problem of deviation caused by uneven surface of the graphite blank can be effectively solved through double fixation, the clamping force of the side fixing block can be red