Laser beam path alignment apparatus for laser processing machine

Details Laser beam path alignment apparatus for laser processing machine Laser beam path alignment apparatus for laser processing machine

1989-11-16

1991-04-30

Evans, F. L.

Optics: measuring and testing

Angle measuring or angular axial alignment

Alignment of axes nominally coaxial

356400, 21912178, 21912179, 21912183, G01B 1126

Patent

active

050112821

ABSTRACT:
To automatically align a laser beam path with respect to an axis along which a movable carriage of a laser processing machine moves, the apparatus of this invention comprises means for detecting laser beam position at least when the carriage is positioned at a first and a second position, means for displaying the detected laser beam positions, and means for adjusting the mirror tilt angle. In the apparatus, the laser beam path is aligned with respect to the axis by actuating the mirror tilt angle adjusting means so that the second laser beam position on the display means is moved to coinside with the first laser beam position. The apparatus of this invention may comprise, instead of the display means, means for calculating an inclination angle of the laser beam with respect to the axis, based on the distance between the first and the second position, and distance between the first and the second laser beam position.

REFERENCES:
patent: 4520261 (1985-05-01), Tsutsumi
patent: 4574180 (1986-03-01), Kasner et al.
patent: 4576480 (1986-03-01), Travis
patent: 4618759 (1986-10-01), Muller et al.
patent: 4707596 (1987-11-01), Hohberg
patent: 4918284 (1990-04-01), Weisz

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