| 摘要 |
<p>An adjustable locator comprises a locator element 22 for contact with a workpiece 24 supported on a fixture 2. The locator comprises a support element 28 in which a ramp element 36 is slidable. The ramp element 36 has a ramp surface 40 which is contacted by a plunger 38 which carries the locator element 32. Displacement of the ramp element 36 causes displacement of the plunger 38 to adjust the position of the locator element 22 with respect to the support element 28. A ratchet mechanism 48, 50 permits displacement of the ramp element 36 in one direction, but prevents such movement in the opposite direction.</p><p>The adjustable locator can be used in a workpiece fixture to achieve an optimum orientation of a workpiece prior to machining.
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