HAMAR LASER L-705, Руководство пользователя

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Bore Alignment Using the A-512 Target/A-514 Bore Adapter
To perform alignments, the laser is mounted in the L-111 Laser Stand and the L-102 Laser Beam
Translator is attached. The L-111 has coarse angular adjustment capabilities and the L-102 can translate
(move) the laser beam up/down and left/right without changing the angle.
The entire assembly is then mounted near the first reference bore. The A-512/A-514 target/adapter is
placed in the first bore and the L-102 Beam Translator is adjusted to center the laser beam to the target.
The target is then moved to the
Far
reference bore and the angular adjustments are used to tilt the laser to
the center of the target. This process is repeated until the target reads zero at both locations. The laser is
now parallel to the end reference bores and the target can be moved to (or a second target can be placed
in) the inner bores for alignment checks. Since the laser provides live data, any alignment errors can be
adjusted and the user can watch the readings update live in the readout.
Target fixturing can consist of a 3-legged, spider-type fixture with a flange adapter (T-225) or a 4-legged,
self-centering adapter (A-514).
Measuring Bore Alignment
The A-512/A-514 target/adapter are then placed in the desired bore for measurement, and once it is
properly centered, the readout displays the bore misalignment. To truly align a bore to a centerline, two
sets of readings are needed: one in the front and one in the back of the bore. The average of these two
sets of reading indicates how far off center the bore is relative to the reference bores. The difference
between the readings is how much angle the bore has to the reference bore centerline. To align a bore,
both ends of the bore must be adjusted to zero, an easy task given that the readings from the target are
live.
High-Tolerance Bore Alignment
For high-tolerance bore alignment applications, the remaining target sensor concentricity error (TSCE)
must be calculated using the NORMIN method (see Appendix A on Page 37). TSCE is calculated by
taking two readings, one with the target at the 12 o'clock position and a second at 6 o'clock (horizontal
and vertical calculations are done separately). The second reading is added to the first and the result is
divided by two. This is the TSCE and shows how far off the center of the target is from the center of the
bore. This calculation creates an offset that can then be subtracted from all subsequent bore
measurements to get the true misalignment number. Our Bore9 software can easily calculate TSCE and
even automatically remove it from the displayed reading.
Measuring Bore Diameters
To measure bore diameters by performing calculations manually, see Appendix B – Calculating Bore
Diameters
on Page 39. To measure bore diameters using our Bore9 software, please see the Bore9
manual.