Geometrical instruments – Gauge – Circular size
Reexamination Certificate
2006-05-23
2006-05-23
Guadalupe, Yaritza (Department: 2859)
Geometrical instruments
Gauge
Circular size
C033S555300, C033S702000
Reexamination Certificate
active
07047658
ABSTRACT:
An apparatus and a relevant method for checking a crankpin (18) of a crankshaft (34) positioned on a numerical control grinding machine where it is worked includes a gauging head (39) with a Vee-shaped reference device (20) and a feeler (17), axially movable along a translation direction, that touches the crankpin surface, and an articulated support device (5,9,12) connected to the grinding-wheel slide (1), carrying the guaging head and allowing the reference device (20) to keep contact with the crankpin during its orbital motion around the main rotation axis (0) of the crankshaft. Rough values corresponding to a transducer (41) signals provided at predetermined angular positions of the crankshaft are stored and are processed also to compensate alterations caused both by contact between the sides of the Vee-shaped reference device and the surface of the crankpin to be checked, and by variations of the angular arrangement of the Vee-shaped reference device in the course of orbital rotations of the pin.
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Dall'Aglio Carlo
Danielli Franco
Dickstein Shapiro
Guadalupe Yaritza
Marposs Societa ' per Azioni
Morin & Oshinsky LLP
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