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HM 1000/1250
10.10 Positioning precision and difference in changing the pallet
1) How to measure
(1) Move the X, Y, Z axes to the middle position (X1050. Y625. Z775.) of the stroke.
(2) Install 3 indicators on the spindle head and present two gauges to the X- and Z-axis
edge locators, and the other gauge to the pallet deck in the Y axis side.
(3) Use the following settings and perform the instruction.
G91 G28 Y0;
G91 G28 X0 Z0;
M60;
G90 G00 X1050. Z775.;
Y625.;
M00;
M99;
※ By the time the Y axis lowers down to contact on the pallet, decrease the override
speed in order to minimize the measuring error due to shock on the gauge.
(4) Perform the measuring at least 4 times for each of pallet 1 and pallet 2 (on all three
axes: X, Y, Z). The greatest difference is the measurement.
▪ Tolerance: 0.020mm
2) Correction
As the error is thought to come from the defective table locator pins or cup, clean them
up and try again. If the problem persists, replace them with new ones.
Z
X
Y
HM1000ISE99
71
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