Hole flanging mould

The utility model relates to a hole flanging mould, including upper mold and lower mould mould, upper mold includes the hole flanging needle, the hole flanging needle includes hole flanging needle cylinder, the frustum of a cone and drift, hole flanging needle cylinder is connected with the great face of frustum of a cone structure radius, the drift is connected with the less face of frustum of acone structure, the lower mould mould includes module down, it is directed against the hole flanging of answering with the hole flanging to be equipped with in the module down, the hole flanging includes radius frustum shrinkage pool and the first through -hole that equals with radius frustum shrinkage pool than the radius of small diameter face, have the hole flanging of catching and accord withthe product requirement, make the product riveting abundant, the advantage that does not easily come off. 本实用新型涉及种翻孔模具；包括上模模具和下模模具；上模模具包括翻孔针；翻孔针包括翻孔针柱体、圆锥台和冲头；翻孔针柱体与圆锥台结构半径较大的面连接；冲头与圆锥台结构较小的面连接；下模模具包括下模块；下模块上设有与翻孔针对应的翻孔；翻孔包括倒圆