CONCENTRIC CLAMPING ELEMENTS
Locating and clamping on a single diameter requires one 3-point element. In this example, eight workpieces are clamped close together using eight 3-point elements.
In this example, a long tubular part is centered by a fixed locator at one end, then located and clamped with a 3-point element at the other end.
Locating and clamping on two diameters requires one 3-point element in the primary reference hole, and one 2-point element in the secondary hole. Height location in this example is by three fixed Screw Rest Pads.
When locating and clamping on two offset diameters, turn the 2-point element so that it extends perpendicular to the axis between the holes.
If one of the two holes is too small for a concentric clamping element, a fixed diamond locating pin can be used instead of the 2-point element, along with a 3-point element in the larger hole for clamping.
Locating and clamping in a slot can be accomplished using two 2-point elements, along with a locating pin for lateral location.