| 摘要 |
A vise assembly, for use on a drill press having a vertical cylindrical column and a table with a flat upper surface substantially perpendicular to the column, has a mounting block slidably and rotatably mounted on the column and a frame slidably mounted on the mounting block for movement parallel to the flat top surface of the table. The frame includes a back plate, at least two pairs of rods connected to the back plate, fixed and movable jaws, one of the pair of rods being connected to the fixed jaw and the other of the pairs of rods being connected to the movable jaw. The jaws normally rest on the table. In the preferred embodiment, hydraulic cylinders, carried by the back plate, are connected to move the pair of rods connected to the movable jaw. In another embodiment, a manually operated screw arrangement is used to move one pair of rods relative to the other, to move the movable jaw toward the fixed jaw. The entire frame may be moved manually toward and away from the column and rotated with respect to the column so as to position the jaws in any desired position with respect to the table, before or after a workpiece has been mounted in the jaws.
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