| 摘要 |
PROBLEM TO BE SOLVED: To provide a drill driving device to which a cooling medium can be supplied if needed while moving a tool and from which chips can be appropriately removed.SOLUTION: A drill driving device according to the present embodiment is equipped with a fixing section, a transferring mechanism, a supplying section of the cooling medium or a lubricating medium, a casing and a curbing means. The transferring mechanism holds the tool to axially transfer the tool in relation to the fixing section. The supplying section of the cooling medium or the lubricating medium moves together with the transferring mechanism. The casing is fixed to the fixing section to cover at least a leading end side of the tool of the transferring mechanism and besides forms a branched path for collecting dusts. The curbing means curbs a decrease in wind pressure used to collect the dusts, caused by the movement of at least one of the supplying section and the transferring mechanism. |
