| 摘要 |
In the present invention, there is disclosed a clamping device with feed of process liquid to drill body consisting of a body, being provided at its one end with a cavity for clamping a drill and with at least one body opening for a drill clamping screw while at its other end the body is terminated by a body shank for clamping the clamping device into a machine tool spindle, wherein the body (3) is rotatably mounted by means of bearings (4) within the cavity (11) of a sleeve (2) fixed in axial direction by a cover (1), wherein the sleeve (2) comprises process liquid inlet (8) opening in a radial groove (20) of the process liquid feed performed in the sleeve (2) inner wall. In the body (3), there is performed a radial channel (12) entering the process liquid feed radial groove (20), wherein an axial channel (13) arranged in the axis of the clamping device (17) and opening in the cavity (23) for clamping a drill (10) leads out therefrom. The sleeve (2) is provided with an air supply (7) opening through channels (6) into two radial grooves (19) of the air supply performed in the sleeve (2) inner wall (2), which are arranged between the bearings (4) and from both sides of the process liquid feed radial groove (20). In the sleeve (2), there is performed around each bearing (4) at least one recess (9) that opens in a radial air-relief channel (21) for the removal of excessive air from the sleeve (2) cavity (11). |
