3
•
Bubble level vials
on the laser mounting flange are used for rotational accuracy. When the bubbles
in the level vial are centered horizontally, all micrometer adjustments (controlling laser beam angle)
will shift the laser beam vertically or horizontally with reference to the bore/target axis. If the
bubbles are not centered, any micrometer adjustment to one laser axis will change the laser beam
position in both axes. The levels also provide fixture mounting repeatability (assuming the laser is
hard-mounted to fixture).
•
Micrometer controls
are provided for the adjustment of the angle at which the laser beam emerges
from the precision ground, mutually concentric steel laser housing. Each laser has a NOMINAL
setting for both the V-Vertical and the H-Horizontal micrometer controls. The nominal settings are
determined at the factory and correlate to values for the laser beam when it is perpendicular to both
the 2 in. and 4 in. mounting faces. When the bubble in one of the level vials is centered, a nominal
setting of each micrometer squares the laser beam to that specific axis. For example, if the nominal
vertical setting is .120, then setting the micrometer to .120 sets the laser beam square to the vertical
axis. When a laser is mounted in the gearbox or bore adapter, vertical and horizontal micrometers
should be
set in the nominal positions
to facilitate the alignment and measurement process.
Adjusting the L-705 Laser
The L-705 Laser beam is factory adjusted to be concentric to
the mounting diameters (2.25 in. or 57.15 mm and .75 in. or
19.05 mm) within ±.0005 in (0.0127 mm). With the adjusting
micrometers set at the nominal position, (see the
Nominal
Settings
label on the outer flange), the laser beam is perpen-
dicular to the front mounting surface and parallel to the
mounting diameters within ±.0003 in/ft.
In a typical bore measuring application, the L-705 Laser is
mounted concentric to one end of the bore by means of a
fixture ring or plate. Because fixtures are seldom perfect, the
laser beam requires angular adjustment to make it concentric
to the bore. This is accomplished by placing the Self-
Centering measuring target at the other end of the bore and
adjusting the micrometers on the laser until the laser beam is
centered on the target.
The circular level vial on the laser mounting flange is used to
reference the orientation of the vertical and horizontal axes
of the L-705 Laser. When the bubble in the level vial is
centered, all micrometer adjustments (controlling laser beam
angle) will shift the laser beam vertically or horizontally
with reference to the bore/target axis. If the circular level bubble is
not
centered, any micrometer
adjustment to one laser axis
will make the laser beam position appear to change in both axes
. The level
vial also provides fixture mounting repeatability (assuming the laser is hard mounted to the fixture).
Only minor readjustments of the laser to the bore and fixture surfaces are required in situations where
frequent alignment is expected.
Figure 2 –
L-705 Laser Micrometer Adjustments
Содержание L-705
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Страница 18: ...15 Half Bore Alignment Setup...
Страница 27: ...24 Appendix B Configuring the R 1307 2 4ZB Readout Model R 1307 Readouts Control Panel...