Carr Lock® Fixture Plates are precision-machined MIC-6 cast aluminum plates available in a wide range of standard sizes to use as a base for building quick-change fixtures. The 16 x 20 fixture plate shown here is .750" thick and has four locating/mounting holes for 20mm Carr Lock® Clamps. Made in the USA.
The Carr Lock® System is extremely accurate. All Receiver-Bushing installation holes are located +/-.0002" from their primary reference hole. Clamping repeatability is +/-.0005", while bushing concentricity is .0002" TIR. The resulting x/y-axis repeatability of a mounted fixture plate is +/-.0028" considering all tolerance accumulation.
To fasten the Carr Lock® Fixture Plate to a subplate, begin by inserting a Carr Lock® Clamp into each of the four corner holes. Next, fully tighten the clamps one at a time – first the clamp in the primary liner bushing, then the clamp in the secondary liner bushing, then the clamps in the clearance holes. Carr Lock® Fixture Plates also have two fixture-key holes for conventional mounting directly on a slotted machine table using Sure-Lock™ Fixture Keys.
Fixture Plate > MIC-6 precision-machined cast aluminum. Liner Bushings > 1144 steel, heat treated Rc 58-64, black oxide finish. DFARS and RoHS compliant.