| 摘要 |
<p>A spindle device characterized in that a coolant passage (26) selectively connectible to a main passage (17) is provided downstream of the main passage (17), that an air passage (32) selectively connectible to the main passage (17) is provided outside the coolant passage (26), that first switching means (20) is provided between the main passage (17) and the coolant passage (26), and that second switching means (30) is provided between the main passage (17) and the air passage (32), whereby when a tool is clamped, the first switching means (20) is opened so as to establish a connection between the main passage (17) and the coolant passage (26), while the second switching means (30) is closed so as to shut off the connection between the main passage (17) and the air passage (32), and whereby when the tool is unclamped, the first switching means (20) is closed so as to shut off the connection between the main passage (17) and the coolant passage (26), while the second switching means (30) is opened so as to establish a connection between the main passage (17) and the air passage (32). <IMAGE></p> |
