| 摘要 |
A hydraulic bushing (1) to receive and retain a machining tool, in which the cavity (2) to receive the machining tool is preferably provided with an inflexible bottom, the inner wall of the cavity is arranged to be radially flexible via a tubular space (10) inside the inner wall. The tubular space can extend beyond the length of the cavity and which space contains a pressure medium to be influenced by pressurising means (3, 4, 5) that preferably includes an axially displaceable unit and that suitably utilises a thread arrangement. The pressurising means are arranged in the shift part (6) of the bushing which is intended to secure the bushing to the holder part (8) and which transmits a rotary movement to the bushing and in that the displacement direction of the unit is parallel with the axis of the bushing and can be influenced externally. |
