| 摘要 |
A shuttle, which has first means to support a first set of tools for disposition in a plurality of vertically disposed spindles and second means to receive a second set of tools in the spindles for support by the shuttle, is moved from a home position to a first position in which the tools in the spindles are transported to the shuttle for support by the second means. After the second set of tools has been removed from the spindles by a separate interchange arm for each spindle and received by the second means, the shuttle is moved to a second position in which the first set of tools can be transferred to the spindles by the interchange arms. The shuttle is then returned to its home position where the second set of tools is removed from the second means and a new set of tools is disposed in the first means to repeat the operation.
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