Punching assembly for hydraulic tool and hydraulic tool

The embodiment of the utility model provides a stamping assembly for a hydraulic tool and the hydraulic tool. The stamping assembly includes a stamping piston having a stamping cavity. The ram piston receives a hydraulic pressure reaction force. The stamping assembly further includes an overload assembly disposed in the stamping cavity or in a cavity defined by the manifold. The overload assembly includes a rupture disk positioned at a first end of the manifold or ram cavity, a locknut positioned at a second end of the manifold or ram cavity, and a spacer positioned between the rupture disk and the locknut. The spacer transmits a supporting force applied to the locking nut to the rupture disk. The reaction force and the support force of the hydraulic pressure act in the same direction and thus are superimposed forces acting on the rupture disk. 本实用新型的实施例提供了一种用于液压工具的冲压组件和液压工具。冲压组件包括具有冲压腔的冲压活塞。冲压活塞接收液压压力反作用力。冲压组件进一步包括过载组件，该过载组件设置在冲压腔中或由歧管限定的腔中。过载组件包括定位在歧管或冲压腔的第一端部处的爆破片、定位在歧管或冲压腔的第二端部处的锁紧螺母、以及定位在爆破片与锁紧螺母之间的间隔件。间