| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To reduce a load of a tool change, and to prevent the chattering of a tool during machining. <P>SOLUTION: There are provided, in a machining tool 1, a communication passage 41 communicating with a coolant supply port S3 formed in a spindle S while being mounted to the spindle S of a machining center, a filling chamber 42 communicating with the communication passage 41 and capable of being filled with a coolant, a discharge passage 43 communicating with the filling chamber 42 and opened to the outside, and a closing means (ball 50) capable of closing the discharge passage 43. When changing the tool, the filling chamber 42 is in an empty state, and during the machining, the filling chamber 42 is filled with the coolant. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
