Molding device capable of measuring internal radial stress distribution of test piece

The utility model discloses a molding device capable of measuring internal radial stress distribution of a test piece. The molding device comprises a mold, a partition device and a fixing device, the mold is a rectangular box body with an opening in the upper part; the sliding plate can slide along the rail groove so that the sliding plate can close or open the opening. The partition device is a partition block, and the shape of the opening of the mold is matched with the shape of the partition block, so that the partition block can be put into the mold from the opening; each fixing device comprises a fixing piece and a fixing ring buckle, each fixing ring buckle comprises a ring buckle rotating shaft and a ring buckle rotating end, and when the partition block is placed in the mold, the gravity borne by the partition block enables the ring buckle rotating end of each fixing device to rotate relative to the corresponding fixing piece and then be clamped and fixed to the outer edge of the opening in the upper