| 摘要 |
PROBLEM TO BE SOLVED: To provide a tool holder, having high responsiveness in supplying a generated waterdrop with an oil film to a work and supplying an enough amount of waterdrops with an oil film to the work. SOLUTION: This tool holder 1 is incorporated with a watedrop with an oil film generating part 27 composed of: an oil atomizing chamber for atomizing oil by an air current; a chamber for making water into waterdrops to generate waterdrops with an oil film where an oil film is formed on the surface of the waterdrop; a top nozzle 29 for releasing waterdrops with an oil film. The top nozzle 29 is provided adjacent to the rear end part of a tool 7 on a rotating shaft of the tool holder 1, and the waterdrops with an oil film released from the top nozzle 29 are supplied to the work through a supply passage 8 formed through the rotating shaft of the tool 7, so that in supplying waterdrops with an oil film to the work, the responsiveness is heightened, and an enough amount of waterdrops with an oil film is discharged to the work. COPYRIGHT: (C)2007,JPO&INPIT
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