Threaded parts inspection device

Details Threaded parts inspection device Threaded parts inspection device

1995-08-18

1997-07-08

Gonzalez, Frank

Optics: measuring and testing

Inspection of flaws or impurities

Having predetermined light transmission regions

250223R, 356398, 33199R, 348 86, 348125, 348211, G01N 2100

Patent

active

056467249

ABSTRACT:
An opto-electronic, threaded parts inspection device. The device includes a source for generating a thin, planar beam of collimated light which is disposed on one side of a parts carrier. The laser light beam is rotatable about two axes, normal to one another and both normal to the longitudinal axis of parts passing through the beam. A sensor unit is disposed on the other side of the parts carrier so that the light beam falls thereupon. The threaded parts inspection device can be adjusted to pass light over different features of the threaded parts as they are moved past the inspection device by the parts carrier. By measuring how much of the light is interrupted by the profile of the passing threaded parts, it is possible to detect deviations in the pitch angle and major and minor diameters of the threaded workpieces.

REFERENCES:
patent: 4171161 (1979-10-01), Jung
patent: 4644394 (1987-02-01), Reeves
patent: 4802323 (1989-02-01), Garris et al.
patent: 4807995 (1989-02-01), Dassler et al.
patent: 4906098 (1990-03-01), Thomas et al.
patent: 5139150 (1992-08-01), Fuller, Jr. et al.
patent: 5164995 (1992-11-01), Brooks et al.

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