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发明公开
CN101530927A 带主轴卡盘更换功能的机床 失效 - 权利终止

带主轴卡盘更换功能的机床
摘要：
本发明提供一种能够以简单的构成缩短工件更换的时间的带主轴卡盘更换功能的机床。该机床具有主轴(3)、主轴电机(4)、多个主轴卡盘(5、5)、主轴卡盘更换机构(10)、预旋转用电机(7)、旋转速度检测装置、以及更换时主轴电机速度控制装置，该更换时主轴电机速度控制装置在通过主轴卡盘更换机构(10)将主轴正对位置(P1)的主轴卡盘(5)交至主轴(3)的卡盘结合部(3a)时，按照旋转速度检测装置的检测速度对主轴电机(4)的旋转速度进行控制，使得主轴(3)的旋转速度与主轴正对位置(P1)的主轴卡盘(5)的旋转速度同步。
摘要（英）：

Tthe present invention provides a machine tool with a spindle chuck replacing function which has a simple configuration and enables a reduction in work replacement time. The machine tool with the spindle chuck replacing function includes a spindle (3), a spindle motor (4), a plurality of spindle chucks (5, 5), a spindle chuck replacing mechanism (10), a pre-rotation motor (7), a rotation speed sensing means, and a replacement spindle motor speed control means. The replacement spindle motor speed control means controls the rotation speed of the spindle motor (4) according to a speed sensed by the rotation speed sensing means so that when the spindle chuck replacing mechanism (10) passes the spindle chuck located at a spindle opposite position P1 to a chuck coupling portion (3a) of the spindle (3), the rotation speed of the spindle (3) synchronizes with the rotation speed of the spindle chuck (5) located at the spindle opposite position (P1).

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