| 摘要 |
PURPOSE:To permit the free high speed revolution and permit the replacement of tools by installing the captioned spindle onto the spindle of a machine tool and allowing the output shaft of an air motor in a casing to permit the mounting of a grinding tool. CONSTITUTION:The captioned spindle is equipped with a holder 6 installed in demountable ways onto a machine tool spindle shaft 11, casing 2 fixed onto the holder 6, air motor 3 fixed in the casing 2, and the output shaft 8 of the air motor 3 supported in rotatable ways onto the casing 2 by the bearings 9 and 10, and a grinding tool is installed on the output shaft 8. Therefore, the holder 6 has the same shape to the tool, and tools can be easily replaced in the machine tool. Further, the air motor 3 can be removed at high speed independently of the revolution of the spindle of the machine tool, and in case of a common tool, working can be carried out by the main spindle 11 as in the common case. |
