| 摘要 |
PROBLEM TO BE SOLVED: To provide a machine tool capable of an economical driving by supplying lubricant increased or decreased to a proper volume to a tool holder even when the tool holder to a spindle is frequently exchanged. SOLUTION: In this supplying fluid to a tool holder, a fluid mixing chamber 13 is provided between a fluid emission port of a positioning block and fluid supplying means E, and an airflow and lubricant are transferred to the fluid mixing chamber, so as to generate mist-like lubricant and feed it to a communication path of a positioning pin. At an initial stage for mounting a shank to a holder mounting hole, a larger volume of lubricant than a predetermined volume is fed to transfer the lubricant with a high concentration to a blade. When the lubricant reaches a tool, the volume of the lubricant is reduced to a predetermined volume, and transferred. COPYRIGHT: (C)2009,JPO&INPIT
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