SM411F_Service Manual - 第68页
1.2.7. Gantry Thermal Mapping The fiducial marks on the conve yer shall be taught at 3 points in or der to compensate the thermal deformation of the XY coordinate system due to the heat created by the friction of the bal…
<Update> button
Apply the compensation value according to the calibration.
1.2.7. Gantry Thermal Mapping
The fiducial marks on the conveyer shall be taught at 3 points in order to
compensate the thermal deformation of the XY coordinate system due to the heat
created by the friction of the ball screw after operation of the machine.
Figure 1-6. ”Gantry Thermal Mapping”dialogbox
<Gantry> combo box
Select the gantry for which the thermal mapping is to be performed.
<Move> button
Move the fiducial camera of the corresponding gantry to the position of the
fiducial mark selected from the Grid group.
<Get> button
Apply the coordinate value of the current position as the selected fiducial mark
position.
<Enable Gantry Thermal Mapping> check box
Decides whether to carry out Gantry Thermal Mapping. When all the fiducials
on the transport rail are taught for Calibration, it will be checked automatically.
To disable the “Gantry Mapping”, remove the check from the check box.
<Mapping Time Mode> Group
Set the cycle by which the mapping is performed.
Auto: Automatically performs the mapping by the cycle already
determined.
Manual: Input the cycle into the edit box at the right and perform mapping
for every corresponding cycle manually.
<Automatic Next> check box
Select this check box and click the <Next> button. Then the gantry thermal
mapping is performed automatically.
Grid group
<Manual> check box
Move the gantry to the designated position by using the teaching box and
perform the gantry mapping manually.
1.2.7.1. Procedure
The gantry mapping method is as follows.
1. Referring to the following figure, perform teaching of the position of fiducial
mark 3 located on the upper surface of the conveyor.
2. Click the <Move> button to move the fiducial camera to the designated
position.
3. Adjust the position of the fiducial camera by using the teaching box so that the
center of the cross hair displayed in the SMVision window matches with the
center of the fiducial mark that was already set on the conveyor.
4. Click the <Get> button to reflect the current coordinate.
5. Identically teach fiducial marks #1 and #3 in order as shown in the above
figure.
6. Once the teaching of the fiducial marks at three points for Gantry 1F is
completed, the teaching of the fiducial marks at three points for Gantry 1R is
performed. The teaching is performed in the same manner for Gantry 1F.
7. If the teaching is completed properly, check the "Enable Thermal Mapping"
and set the Mapping Time Mode. When selecting the Mapping Time Mode