Doosan DVF5000 - X-Y Axis Cross-Squareness

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6. Machine Accuracy Measurement and Adjustment
6.5 Y - Z axis Cross Squareness
1)
Measurement
Place a square ruler in the upright position on the table in the Y-axis direction at the B0.
position, set the indicator to “0 ” at the end(ⓑ
) of the
vertical plane on the square ruler by
setting up an indicator on the spindle head, and then measure the maximum difference
of the other end(
ⓐ) while moving the Z-axis.
▶ Measurement position : Lower side end and upper side end of the square ruler (ⓑ-
ⓐ).
▶ Tolerance : 0.015mm / 300mm
2) Correction
First, adjust squareness irregularity resulting from the level by performing the machine
leveling operation, and, if the result is unsatisfactory, adjust (polishing on the spot) the
thickness of the two upper or lower side 110934-00252A Z LM Liners among the Z-axis
L/M Blocks to adjust the squareness.
Z direction
Table
Indicator
b
B0. Position
Y-axis direction
a