The utility model discloses a bottom die cooling disc of an automobile hub gravity
casting die, which belongs to the technical field of automobile contour
casting and comprises a bottom die body, a
cooling pipe is arranged in the bottom die body, a
liquid storage tank is fixedly connected to the bottom surface of the bottom die body, one end of the
cooling pipe is fixedly communicated with the upper surface of the
liquid storage tank, and the other end of the
cooling pipe is fixedly communicated with the
liquid storage tank. An auxiliary water pump is arranged in the
liquid storage tank, the other end of the cooling
pipe penetrates through the
liquid storage tank and fixedly communicates with the water outlet end of the auxiliary water pump, four auxiliary cylinders are fixedly connected to the bottom face of the
liquid storage tank, and a
semiconductor chilling plate and a cooling fan are fixedly connected to the inner wall of each auxiliary cylinder. The bottom face of each
semiconductor chilling plate is fixedly connected with a cooling fin. According to the bottom die cooling disc of the automobile hub gravity
casting die, through cooperation of a plurality of assemblies, the efficient
cooling capacity is achieved, long-time cooling is not needed during contour production, the contour production efficiency is effectively improved, and the effects of increasing production benefits and improving the using effect are achieved.