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6. Machine Accuracy Measurement and Adjustment
※ Note) Spindle Housing Vertical Adjustment (18,000rpm spindle)
(1) By referring to “Spindle centerline and Z-axis feed parallelism” above,
measure the exact parallelism to calculate the amount of polishing on the
liner. (Measured amount and amount of polishing 1:1)
(2) Disassemble and take out the spindle head cover and loosen the spindle
housing fixing bolts (8-BB10ⅹ30).
(3) Take out the following liner, polish as calculated, reassemble and tighten
the fixing bolts accordingly: Left liner if the bottom is tilted to the right in
the Test-Bar X-Z measurement; right liner if tilted to the left in the X-Z
measurement; Front liner if tilted to the rear in the Y-Z measurement;
Rear liner if tilted to the front in the Y-Z measurement.
(4) Reassemble the Bearing Housing, measure the squareness and repeat
until the result is satisfactory.
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