| 主权项 |
1. A tool holder device which can be coupled to a machine which can rotate the device, the device comprising securing means (4) for securing a tool (24) and a body (1) which comprises an anchoring element (5) which allows coupling the device to the machine, characterized in that it comprises a movable part (2) which can move in an axial direction, wherein said securing means (4) are coupled to the movable part (2), wherein said movable part (2) comprises a chamber (21) hosting a pneumatic mechanism (3) which comprises a pneumatic piston (6) performing a linear movement in at least two directions, such that it can slide axially inside the chamber (21), wherein said pneumatic mechanism (3) can cause an axial vibratory movement of the movable part (2),wherein the movable part (2) further comprises conduit means (8, 23) configured for supplying compressed air to said pneumatic mechanism (3) through said anchoring element (5) and wherein the pneumatic piston (6) further comprises inner conduits (22), said compressed air being carried to said inner conduits (22) traversing the piston (6) and opening into the chamber (21) on axially opposite faces of the pneumatic mechanism (3), thus producing the axial vibratory movement of the pneumatic piston (6). |
