| 摘要 |
PURPOSE:To ensure the machining work by swaying an exchanging arm holding a tool, moving a collet chuck fixed to a main spindle toward a locked quill arm, inserting the tool into the collet chuck, and swaying it with a clutch integrally with the quill arm to the waiting position. CONSTITUTION:After the exchange is started, an exchanging arm 58 and a quill arm 36 are both moved toward the main spindle 22 of a grindstone device 10, a tool 20 and a collet chuck 46 are held, the rotation of the collet chuck 46 is locked by the quill arm 36, and the engagement of the tool 20 is released by the rotation of the main spindle 22. Only the exchanging arm 58 is moved and swayed to a tool magazine while holding the tool 20, and tool exchange is performed. It is again swayed and moved toward the main spindle 22, and the tool is fitted. As a result of movement, the exchanging arm 58 and quill arm 36 are engaged by clutches 80, 82. They are moved together, bolding and endagement of the tool 20 and collet chuck 46 is released, and they are both swayed and rotated to the waiting position. Accordingly, the work of the device 10 is not impaired after the tool exchange. |
