Round point connection stamping die

The utility model provides a circular point connection stamping die, relates to the technical field of stamping equipment, and solves the problem that in the extrusion plastic deformation process in the prior art, due to the fact that materials flow in a closed circular female die, expansion force formed by compression causes cleavage to the female die. The device comprises a male die and a female die matched with the male die, the female die is sleeved with a female die core, the female die core is composed of at least three die pieces, and the female die is further fixedly sleeved with a limiting piece used for limiting the female die core to move in the radial direction of the female die; in the extrusion plastic process, under the action of impact force, the female die core composed of the three die pieces moves and expands in the radial direction of the female die core, so that a certain flowing space is provided for materials in a plate in the flowing process, rigid extrusion of the plate in the extrusi