Tool for punching boss on aluminum shell

The utility model discloses an aluminum shell boss punching tool which comprises an upper die, a lower die and a supporting table, the lower die is arranged on the supporting table, the upper die is arranged above the supporting table, the lower die is constructed to be of a long-strip-shaped structure, a first through cavity is formed in the lower die, a boss core is arranged in the first through cavity, and a first through groove allowing the boss core to penetrate out is formed in the top of the first through cavity. When the upper die moves towards the lower die, the boss core penetrates out of the first through groove. The stamping force is small, the product is not prone to deformation, and the inner diameter cannot be changed. 本实用新型公开了一种铝壳冲凸台工装，包括上模、下模及支撑台，下模设于支撑台上，上模设于支撑台上方，下模被构造成长条形结构，下模上设有第一通腔，第一通腔内设有凸台芯，第一通腔顶部设有供凸台芯穿出的第一通槽；上模往下模方向移动时，凸台芯从第一通槽内穿出；本实用新型的冲压力小，产品不易变形，内径不会发生改变。