Method and relevant apparatus for detecting the geometrical feat

Details Method and relevant apparatus for detecting the geometrical feat Method and relevant apparatus for detecting the geometrical feat

1975-09-02

1977-06-21

Phillips, Charles E.

Geometrical instruments

Area integrators

Electrical

G01B 525, G01B 731

Patent

active

040302016

ABSTRACT:
The present invention relates to a method and apparatus for detecting the geometrical features of mechanical workpieces, particularly for measuring eccentricity and out-of-roundness of cylindrical and revolution surfaces in which at least two size checks on relevant sections of the cylindrical surface and at least two size checks on the same section of the revolution surface are carried out and the data resulting from the checks are processed to supply an indication of the eccentricity of the two surfaces and of the roundness of the section of the revolution surface. The apparatus includes a plug carrying feelers which is automatically positioned with respect to a workpiece and then revolved, so that feelers carry out measurements. The apparatus is used for checking valve guide holes and valve seats of engines and similar workpieces.

REFERENCES:
patent: 2553129 (1951-05-01), Burnett
patent: 2659157 (1953-11-01), Aller
patent: 2765539 (1956-10-01), Sear
patent: 3125811 (1964-03-01), Pierce et al.
patent: 3254416 (1966-06-01), Eisele
patent: 3534480 (1970-10-01), Webb

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