Roll profile gauge
OwnerBradley R. Hoover, Karl T. Bagdalinventors
Life of this patent
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Abstract
The surfaces of worn and ground rolls are profiled by an electronic processor based gauge which is easily mounted on a roll grinding machine. A fluidic sensor within the gauge determines the distance to the roll surface. The change in roll diameter is detected by changes of air gap between sensor and roll surface. The electronic processor automatically produces a linear scale of the roll profile on a chart recorder. Two fixed spherical elements are mounted on a V-shaped frame member which contact the roll.
Claims25
In a conventional roll grinding apparatus of the type having a head stock and a tail stock mounting a roll to be ground, a grinding wheel mounted on a housing, means to traverse the housing longitudinally of said roll, means to shift the housing toward and away from said roll in a direction substantially perpendicular to the roll axis, and means for rotating said roll, a gauge mounted on said housing, said gauge having a sensor for continuously sensing the distance between said sensor and the roll surface as said housing traverses said roll, means to move said sensor toward and away from said roll relative to said housing, transducer means for converting said sensor output into an electric output, a chart recorder having circuitry driving a pen and an input and output, the output of said chart recorder producing a chart recording, the improvement in combination therewith comprising:
- an electronic processor having inputs and outputs, an output of said transducer being connected to an input of said processor;
- means within said processor that determines the diameter of roll being measured and adjusts the gain of said circuitry driving said pen of said chart recorder;
- input means within said processor to read the output signal from said transducer and measure the distance between the transducer signal and an established reference voltage;
- means within said processor whereupon to multiply the signal from said transducer by the magnification factor derived from the number of sensor positioning steps to move said sensor from its home position to its reference location near the surface of the roll;
- means within the processor to thereupon generate an output signal to said chart recorder comprising the average of a plurality of individual signal readings to provide a smooth chart recording which ignores minor variations in roll diameters;
- and
- the output of said chart recorder producing a chart recording which has a linear scale to profile the surface of the roll traversed by said sensor;
- whereby to improve the resolution, accuracy and ease of profile gauging worn and ground rolls of various diameters.
Dependencies are inferred from the claim text.