Device and method for checking the geometry of a hole bored in a

Details Device and method for checking the geometry of a hole bored in a Device and method for checking the geometry of a hole bored in a

1998-03-24

2000-07-18

Gutierrez, Diego

Geometrical instruments

Gauge

Internal

33543, 335441, G01B 300

Patent

active

060889233

ABSTRACT:
A sensor arm (1) is inserted into a hole (3). The arm is mounted on a pivot (5) perpendicular to the arm axis so that it may be urged into engagement with the wall of the hole, e.g. by an air cylinder (12). The pivot (5) is in turn rotated about an axis passing through the hole, preferably by means of a rotary body (10). A bearing piece (16) controlling the sensor arm may be moved towards or away from the hole and rigidly supports a light sensor (8) that receives a light beam (7) from the sensor arm. The geometry of the hole is determined on the basis of the position where the light beam impinges on the sensor and the position of the bearing piece relative to the hole.

REFERENCES:
patent: 3909951 (1975-10-01), Meier
patent: 4407157 (1983-10-01), Lichtenberg
patent: 4476634 (1984-10-01), Yamamoto et al.
patent: 4753555 (1988-06-01), Thompson
patent: 5189808 (1993-03-01), Evans et al.

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