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Northfield Precision Instrument Corp.'s DPH1000W, 10-inch diaphragm chuck is capable of locating and clamping two workpieces with different location datum. Due to production requirements, end user requested quick and accurate changeover between the workpiece numbers.
The chuck was manufactured with special stepped top jaws that could locate and clamp both workpieces without changeover. For end to end location difference between the workpieces, the chuck was manufactured with a master axial locator incorporating a "button" style stop (illustrated in orange) used for changeover. With replacement of only the button stop, changeover is quick, accurate and repeatable.
Related Glossary Terms
- chuck
chuck
Workholding device that affixes to a mill, lathe or drill-press spindle. It holds a tool or workpiece by one end, allowing it to be rotated. May also be fitted to the machine table to hold a workpiece. Two or more adjustable jaws actually hold the tool or part. May be actuated manually, pneumatically, hydraulically or electrically. See collet.
