Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1982-08-03
1984-07-17
Whitehead, Harold D.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
51 45, 51 35, 51165R, 51 5R, 177 50, 177245, B24B 4900
Patent
active
044597835
ABSTRACT:
A weighing system for a grinding machine which calculates the weight of material removed by the grinding machinery during a grinding procedure. Power signals from a watt meter indicate the power consumed by the motor driving the grinding wheel. The weight of the material removed since the previous calculation is then periodically calculated from the power signals. This incremental weight removal value is then added to the sum of a previously calculated incremental weight removal values to provide an indication of the total weight removed from the workpiece. The calculation also includes a coefficient indicative of the grinding efficiency of the grinding wheel which, in turn, is a function of the density and hardness of the material in the workpiece, the grinding characteristics of the grinding wheel, and the peripheral velocity of the grinding wheel. The peripheral velocity may be calculated by multiplying a signal from a tachometer that is proportional to grinding wheel rotational velocity by the radius of the grinding wheel. The radius of the grinding wheel may be determined by sensing the position of the grinding wheel spindle when the grinding wheel makes contact with the workpiece and comparing this position to the position of a manipulator car carrying the workpiece and the height of the workpiece.
REFERENCES:
patent: 2694960 (1954-11-01), Kahle
patent: 2962938 (1960-12-01), Buigne
patent: 3081194 (1963-03-01), Hunsberger
patent: 4001980 (1977-01-01), Wallin
patent: 4014142 (1977-03-01), Coes, Jr.
patent: 4248019 (1981-02-01), Hawley
Obear Robert F.
Odell, II Jack L.
Western Gear Machinery Co.
Whitehead Harold D.
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