Core shooting combined mold

The utility model relates to a core shooting combined mold for forming the inner cavity of a hydraulic element, and belongs to the metallurgical and casting field. The core shooting combined mold comprises a sand core and corresponding core box mold cavities, wherein the sand core comprises an A core and a B core; a locating body, an axial locating surface and a centering sealing surface are arranged on the B core; the locating body is used for preventing peripheral rotation; the axial locating surface enables the B core to be in contact with the mold cavity of the A core, so as to prevent axial shift; a centering sealing surface is arranged at the joint site of the B core and A core; and correspondingly, a space for holding the B core is reserved in the mold cavity of the A core, and an axial locating surface for mounting the B core and a centering sealing surface for mounting the B core are arranged inside the mold cavity of the A core. The core shooting combined mold uses no bonding agent, and has high cor