| 摘要 |
A fixture for holding workpieces on a machine tool table includes: a base plate for placement upon table rails and slidable along such rails; a locking plate under the base plate for rotation between a locking position to secure the base plate to the table rails, and an unlocked position clear of the table rails; an upright center block on the base plate; left and right slide blocks on opposite sides of the center block, releasably clamped so as to be slidable along the base plate toward and away from the center block, each slide block including a fluid driven piston movable toward and away from the center block to releasably clamp a workpiece against it.
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