Radial Press Spherical Head Piston Rods

The patent applies spheroidality by replacing rigid flat connections with spherical head pieces on piston rods that engage with spherical abutments on the pressure plate. This spherical interface allows angular movement and rotation, eliminating bending moments while maintaining structural stability. The curved spherical surfaces enable the connection to accommodate deformations without introducing stress concentrations, thus reducing the required weight of components.

The spherical head pieces and abutments create a connection that naturally resists bending moments through its geometry, allowing thin-walled, lightweight piston rods to withstand heavy loads without buckling or bending. The spherical interface ensures that forces are transmitted axially, maintaining strength while enabling the use of lighter materials and thinner walls, thus improving press dynamics and response speed.

The spherical head piece and abutment combination provides a unique solution where the curved surfaces maintain stable contact during angular movement. The spherical geometry ensures that the contact point always lies on the line of action of the force, preventing the generation of bending moments. This allows the connection to remain rigid in the axial force direction while permitting necessary angular movements, thus maintaining effective connection rigidity without requiring heavy components.