| 摘要 |
An automatic tool changing device in a machine tool for automatically changing a tool at an automatic tool changing (ATC) region. A spindle head is disposed reciprocally movable between a machining region and the ATC region by way of a machine origin which is positioned at a boundary point therebetween. The device includes a control device having a concurrent execution means in which deceleration control to the spindle head toward the machine origin and the acceleration control for the subsequent movement of the spindle head away from the machine origin are taken place in overlapping relation.
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