Sterling V Brown

US Patent:

43309615, May 25, 1982

Filed:

May 19, 1980

Appl. No.:

6/151208

Inventors:

Sterling L. Brown - Waynesboro PA

Assignee:

Litton Industrial Products, Inc. - Waynesboro PA

International Classification:

B24B 512

US Classification:

51 3

Abstract:

A cylindrical grinding machine comprising a workholding assembly for holding a workpiece having inner and outer diameters for rotation about its axis, and wheelhead means including first cylindrical grinding wheel assembly means including a grinding wheel for grinding the outer diameter of a cylindrical workpiece held by the workholding assembly, second pivotally mounted cylindrical grinding wheel assembly means for grinding the inner diameter of a cylindrical workpiece held by the workholding assembly, means including a two direction hydraulic motor for pivotally displacing the second cylindrical grinding wheel assembly means from a raised remote position to a grind position for maintaining the second cylindrical grinding wheel assembly means at the grinding position, and means for locating the second cylindrical grinding wheel assembly at a precise axial position as the second cylindrical grinding wheel assembly is pivotally displaced to the grinding position including a key and keyway for matingly engaging with the key.