| 摘要 |
A machine tool is equipped with a fully articulatable crossbeam arranged between a pair of vertical columns. The crossbeam carries a tool carriage or saddle which is provided with a driven cutting tool element. The cutting tool element engages a workpiece clamped on a table between the columns and below the crossbeam. The crossbeam may articulate in mutually perpendicular planes, independently thereof. With this feature, the machine tool is flexible and versatile and may be used by semi-skilled operators with a minimum of training to perform a series of intricate operations easily and conveniently.
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