To support a workpiece certainly and in a properly positioned state in the case of carrying out outer peripheral surface work with a groove of the workpiece having the groove on it outer peripheral surface as its standard.
This device grinds and works an outer peripheral surface of an inner ring 1 of a constant speed universal joint with its groove standard. It is furnished with a main spindle 11 to be rotationally driven, a fixed device 12 to face against it and a grinding wheel 13. The main spindle 11 is furnished with a packing member 20 to strike the inner ring 1 and a standard ring 18 having precision against a center of the main spindle. A slider 55 to be driven to advance and retreat by a hydraulic cylinder 54 is loaded on the fixed device 12. A workpiece pusher 61 to sandwich the inner ring 1 in cooperation with the packing member 20 by making contact with the inner ring 1, a plurality of spherical bodies 82 for positioning to center the inner ring 1 against the main spindle 11 in cooperation with the standard ring 18, a hydraulic cylinder 88 to drive these spherical bodies 82 for positioning to advance and retreat against the slider 55, etc., are loaded on this slider 55.
ARAKAMI TAKAO
Kyuichi Ueki
Muramatsu Toshiro