Convertible mold and converting method thereof

The invention discloses a convertible mold and a converting method thereof. The convertible mold comprises a movable mold, a fixed mold, a sliding block mold core and a sliding block, wherein the movable mold is provided with a movable mold sleeving plate and movable mold inserting blocks, and an inserting pieces are mounted in the corresponding movable mold inserting blocks; the fixed mold is provided with a fixed mold sleeving plate and fixed mold inserting blocks; the sliding block mold core is positioned between the movable mold inserting blocks and the fixed mold inserting blocks; the sliding block is positioned between the movable mold sleeving plate and the fixed mold sleeving plate; a mold core fixing structure is reserved between the fixed mold inserting blocks and the sliding block mold core, so that the fixed mold inserting blocks and the sliding block mold core can be fixedly connected; a sliding block fixing structure is reserved between the sliding block and the movable mold sleeving plate, so t