F16B2200/89

Self-locking fluidic clamping device
12473935 · 2025-11-18 ·

The present invention provides a fluidic clamping device (100) comprising a sleeve (110) for clamping and holding a movable part (200). The sleeve (110) comprises a central element (111) having a cross-section in a longitudinal direction of the central element (111), comprising a cavity configured to receive the movable part (200). The fluidic clamping device (100) is characterized in that the sleeve (110) further comprises at least one chamber (112) disposed on an outer periphery of the central element (111) and extending along a longitudinal direction of the central element (111), the at least one chamber (112) configured to containing a fluid, wherein the fluidic clamping device (100) is configured to pressurize an interior of the at least one chamber (112) with a first predetermined fluidic pressure or a second predetermined fluidic pressure, wherein the first predetermined fluidic pressure is lower than the second predetermined fluidic pressure, and wherein the central element (111) is configured to be in frictional contact with the movable part (200) at at least a portion of an inner periphery of the central element (111) and to clamp and hold the movable part (200) in a first state in which the interior of the at least one chamber (112) is pressurized with the first fluidic pressure, and wherein the central element (111) is configured not to be in frictional contact with the movable part (200) at any portion of the inner periphery of the central element (111) in a second state in which the interior of the at least one chamber (112) is pressurized with the second fluidic pressure.