Centerless and center-type grinding systems

B - Operations – Transporting – 24 – B

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B24B 5/18 (2006.01) B24B 5/22 (2006.01) B24B 49/00 (2006.01) G05B 19/416 (2006.01)

Patent

CA 1227932

Abstract of the Disclosure A centerless grinding system comprises a driven grinding wheel, a driven regulating wheel, and a work rest blade for centerless grinding of a workpiece supported by the work rest blade between the grinding wheel and theregulating wheel; means for determining the rate of reduction of the workpiece radius while it is being ground; and means responsive to the rate of reduction of the workpiece radius for controlling the ratio of the power consumed in removing workpiece material to the rate of removal of workpiece material by the grinding wheel. The regulating wheel is preferably fed toward the grinding wheel to feed the workpiece into the grinding wheel. In a similar center-type grinding system, the work- piece is mounted on spindles or chucks which are movable toward the grinding wheel so that the workpiece can still be fed by the regulating wheel. Workpieces longer than the axial dimension of the grinding wheel are ground in suc- cessive plunges along the length of the workpiece, with said ratio being controlled in each successive plunge. To grind hollow workpieces, the regulating wheel or grinding wheel is placed inside the hollow workpiece.

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