Working principle of hydraulic expansion fixture

According to PASCAL's law in hydrostatics:In an incompressible static fluid, any point is subjected to an external force, resulting in a pressure increase, and this pressure increase is transmitted to all points of the static fluid
The hydraulic expansion fixture adopts static pressure expansion technology.After pressurizing the fluid in the fixture, the hydraulic medium under the action of the pressurizing mechanism forces the deformed part of the fixture to uniformly produce elastic deformation along the 360° circular direction to realize the clamping of the workpiece positioning hole/shaft