| 摘要 |
A machine tool with a vertically reciprocating spindle head has an automatic tool changer including a rotatingly indexable tool support connected to the machine tool frame and vertically movable independently of the spindle head, a first cam-and-crank mechanism activated by spindle head vertical movement to move the tool support with the spindle head during a first portion of the tool changing operation and away from the spindle head during a second portion of the tool changing operation, a second cam-and-crank mechanism also activated by spindle head vertical movement for opening and closing a tool holder on the tool support during another portion of the tool changing operation, a tool holder with a pair of rotatably supported L-shaped fingers which hold a tool in a substantially perpendicular direction to the axes of finger rotation, a tool taking device for taking a tool out of a tool magazine, and a vertical stop for preventing vertical movement of the tool support with the spindle head into the machining region. |
