Abrasive tool making process – material – or composition – Impregnating or coating an abrasive tool
Patent
1976-08-16
1979-04-24
Whitehead, Harold D.
Abrasive tool making process, material, or composition
Impregnating or coating an abrasive tool
5116577, 51324, B24B 4916
Patent
active
041505131
ABSTRACT:
A method and apparatus for grinding for use with a grinding machine of the type comprising a circular grinding wheel adapted to rotate about its axis and a spindle adapted to hold a workpiece at a position radially spaced from the grinding wheel wherein the workpiece deflects away from the grinding wheel, and vice versa, as the grinding wheel is moved into the workpiece. The grinding machine includes means for advancing the grinding wheel into the workpiece, such as a threaded shaft and boss arrangement, and gauge means contact the workpiece on the spindle and provide an electrical output signal representative of the diameter of the workpiece. The advancing means is controlled by a microprocessor which, at the initiation of a grinding operation, rapidly advances the grinding wheel into contact with the workpiece a sufficient lineal amount to compensate for the total deflection of the workpiece, grinding wheel, and associated components. Thereafter the microprocessor advances the grinding wheel into the workpiece at a predetermined lineal rate. The output from the gauge means is coupled to the input of the microprocessor so that when the diameter of the workpiece attains predetermined dimension, the microprocessor controls the adavncing means to rapidly retract the grinding wheel from the workpiece at a third lineal rate. Both the first and the third lineal rates are greater than the mean second lineal rate.
REFERENCES:
patent: 3599376 (1971-08-01), Renner
patent: 3622287 (1971-11-01), Kurimoto
patent: 3691699 (1972-09-01), Uhtenwoldt
patent: 3698138 (1972-10-01), Wada
patent: 3716949 (1973-02-01), Price
patent: 3724138 (1973-04-01), Ishikawa
Scherr, Jr. Norman J.
Smith David L.
Inovex Corporation
Whitehead Harold D.
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