Convex hull punching structure for preventing product deformation

A convex hull punching structure capable of preventing a product from deforming comprises an upper die base and a lower die base, two slotting tools are oppositely arranged on the lower surface of the upper die base, and a stripping block and a convex hull punching punch are arranged between the two slotting tools. The lower die base is provided with two sliding blocks, the two sliding blocks move oppositely under the action of the corresponding slotting tools, the opposite ends of the two sliding blocks are both provided with profiling blocks, an ejector pin is arranged between the two profiling blocks, and a lower spring is arranged between the ejector pin and the lower die base. The slotting tool and the convex hull punching punch are arranged on the upper die base, the sliding block matched with the slotting tool and the ejector pin matched with the convex hull punching punch are arranged on the lower die base, the expansion force of materials towards the two sides in the product punching process is count