| 摘要 |
A multi-spindle machine system includes a pick-up attachment. Both the rotational and the axial positions and speeds of the pick-up spindle may be selectively controlled. A plurality of clutches may be used to rotate the pick-up spindle at different speeds. The clutches operatively engage respective drive gears to drive the pick-up spindle. A brake may be used to slow or stop the pick-up spindle. A servo motor may alternatively be used to rotate the pick-up spindle at different speeds. Another servo motor may be used to axially position the pick-up spindle at different locations. The pick-up attachment of the system of the present invention provides selective programmable control of the movements of a pick-up spindle during work piece pickup, back machining, and dropping operations.
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