GRINDING MACHINE UTILIZING MULTIPLE, PARALLEL, ABRASIVE BELTS FOR SIMULTANEOUSLY GRINDING SURFACES ON A WORKPIECE

A grinding machine (10) utilizing multiple, parallel, endless, abrasive belt s for simultaneously grinding several lobes on a cam shaft (46). The device includes a contouring head assembly (108), comprising plural contour feed units (194), each including a curved back-up shoe (254), back-up shoe hol...

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Bibliographische Detailangaben
Hauptverfasser: MOWEN, RICKY L, HYKES, TIMOTHY W, FORTNEY, DENNIS A, RICE, DENNIS F, KAISER, RUSSELL E
Format: Patent
Sprache:eng ; fre
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Zusammenfassung:A grinding machine (10) utilizing multiple, parallel, endless, abrasive belt s for simultaneously grinding several lobes on a cam shaft (46). The device includes a contouring head assembly (108), comprising plural contour feed units (194), each including a curved back-up shoe (254), back-up shoe holder (252), adaptor (246), and ball-spline mechanism (242) for pressing the back-up shoe (254) against an abrasive belt (76). A locating lip (250) is defined on each adaptor (246). The adaptors (246) are in two rows, with upper and lower rows ground to locate the adaptors relative to a reference. The back-up shoe holders (252) are secured in position upon the locating lips (250). A method of assembly, enclosure (110) that encompasses the contouring head assembly (108), laterally moveable support bracket (142) for the drive drum assembly (100), and several other complementary features, coast to provide a device having high efficiency and achieving high tolerances.