Method of measuring elemental shapes of a workpiece on a coordin

Details Method of measuring elemental shapes of a workpiece on a coordin Method of measuring elemental shapes of a workpiece on a coordin

1993-03-23

1995-11-28

Ramirez, Ellis B.

Boots, shoes, and leggings

364560, 36447429, 36447437, 364191, 33503, 33504, 33505, G05B 1919, G05B 194093

Patent

active

054714060

ABSTRACT:
For rapid measurement of workpieces having elemental shapes of known geometry in any orientation in space, the elemental shapes are scanned on a coordinate measuring machine which is equipped with a measuring probe head having a permissible measurement range (MR). The computer of the measuring machine is programmed with basic data for establishing a predetermined path of probe-scanning contact with the workpiece, the predetermined path being so calculated (1) that the probe ball of the probe will remain in continuous contact with the workpiece surface, (2) that probe-head measurements always occur within the permissible measurement range (MR) of the probe head, and (3) that probe-ball displacements reflect probe-head measurements that are taken as measured corrections of the predetermined path. The control system of the coordinate measuring machine monitors the permissible measurement range (MR) of the probe head and corrects for such bending of the probe pin as may occur in the course of scanning along the predetermined path.

REFERENCES:
patent: 4283669 (1981-08-01), Jacoby
patent: 4621434 (1986-11-01), Hirschmann
patent: 4769763 (1988-09-01), Trieb et al.
patent: 5257204 (1993-10-01), Sawada et al.
patent: 5276974 (1994-01-01), Chanoni et al.
patent: 5309364 (1994-05-01), Aramaki et al.
Technisches Messen, Bd. 54, Nr. 7-8, 1987, Munchen, De Seiten 277-284 (This reference is not accompanied by an English translation.).

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