Contact sensor for workpiece calipering
AssigneeErnst Leitz G.m.b.H.
InventorsHans-Dieter Jacoby, Erich Schuster
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Abstract
A sensor for calipering workpieces having one spring parallelogram for Apr. motion in each coordinate axis wherein additional spring means vary the spring constant in at least one of the spring parallelograms. The spring means include two coil springs acting in opposition to one another having between the opposed ends intermediate spring bolts, ball stops between the heads of the bolts and a bending rod with a ball at the end thereof acting on the heads of the bolts to compress the coil springs while being held without play by the ball stops.
Claims7
In a sensor for calipering workpieces having at least two coordinate axes of measurement of translational motion and having one spring parallelogram for each of said coordinate axes, the improvement comprising at least one of said spring parallelograms having a given elasticity constant combined with additional spring means (9,10,13) for varying said elasticity constant of said one of said spring parallelograms as a function of the deflection of said sensor along the coordinate axis associated with said one spring parallelogram.
Dependencies are inferred from the claim text.