Method of checking pallets or articles to be worked by automatic

Details Method of checking pallets or articles to be worked by automatic Method of checking pallets or articles to be worked by automatic

1984-10-11

1985-12-24

Little, Willis

Geometrical instruments

Area integrators

Electrical

33143L, 33147K, G01B 712

Patent

active

045597103

ABSTRACT:
The magnitude of a gap between each of three points on the inside circumferential surface of a reference hole of a reference hole block mounted on a pallet or each of three points on the inside circumferential surface of a hole of an article to be worked prior to working and the body of an apparatus for measuring a diameter of hole is detected by means of each of three displacement detecting elements mounted on the body of the apparatus for measuring the diameter of a hole, an average diameter of a hole to be measured being calculated by means of an operational amplifier circuit, and a pallet or an article to be worked being distinguished on the basis of the calculated value.

REFERENCES:
patent: 3921300 (1975-11-01), Cox et al.
patent: 4262425 (1981-04-01), Sabato
patent: 4339879 (1982-07-01), Selleri
patent: 4443947 (1984-04-01), Possati et al.

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