| 摘要 |
In a drive spindle an electric motor (3) has an output shaft (4) which defines a spindle (5) able to receive an associated tool (10) and associated with an attachment device (11) movable between a position in which it locks the tool (10) on the spindle (5) and a release position; the operative conditions both of the spindle (5) and of the attachment device (11) being detectable by means of a single monitoring optical sensor (33). <IMAGE> |
