fx3r.pdf - 第68页
FX-3R Maintenance Guide 5-15 Rev. 1.00 5-11-1. Adjusting the Gap between Torque Supporter and Support Motor The gap between the torque supporter and support table motor must be adjusted to 1. 1 mm. 5-11-2. Adjusting the …
FX-3R Maintenance Guide
5-14
Rev. 1.00
5-11. Replacing the Support Table Motor (BU Motor)
1) Remove the support table as described below.
1. Stretch the transport width as much as possible.
2. Remove 12 (∗) pan head screws d from the support table c to detach the table.
∗ For the number of screws, the L-specification uses 12 pcs. while the XL-specification
uses 14 pcs.
Figure 5-11-1 Support Table
2) Loosen the tension support fixing screw f, and move the tension support assembly e in the
arrow direction to loosen the tension of the support table ball screw driving timing belt
3) Loosen the set screws h to take out the support table BU motor assembly g together with the
torque support.
4) Loosen the set screws i to detach the torque support assembly from the shaft of the BU motor
j.
5) Assemble the parts and components in the reverse order of above steps 1) to 3). When
assembling the parts and components, perform the following adjustments.
• Adjust the gap between the torque support and BU motor assembly. (section 5-11-1)
• Adjust the tension of the support table driving timing belt. (section 5-11-2)
• Place the support table surface horizontally. (section 5-11-3)
• Obtain the support table offset. (section 3-11 in MS Parameter)
Figure 5-11-2 Support Table Drive System
Figure 5-11-3 BU Motor Assembly
c 40001018
BU table (L)
d SM1040801SN
Flat head screw
M4×8
f SL6051492TN
SEMS cap bolt with washer
M5×14
g 40000927
BU motor
assembly
h SL6051442TN
SEMS cap bolt with washer
M5×14
i SM8050852TP
Set screw M5×8
j E94327290A0
BU motor
assembly
e Tension support
assembly
Toque support
FX-3R Maintenance Guide
5-15
Rev. 1.00
5-11-1. Adjusting the Gap between Torque Supporter and Support Motor
The gap between the torque supporter and support table motor must be adjusted to 1.1 mm.
5-11-2. Adjusting the Tension of the Support Table Driving Timing Belt
To adjust the tension of the support table driving timing belt, loosen the screw of the tension
supporter assembly and move the assembly in the arrow direction, input the said values to the sonic
belt tension meter (manufactured by UNITTA), measure the tension at the locations shown below,
and then adjust the tension within the required range.
• Values to be input to the sonic belt
tension meter
L specification
XL specification
Weight 2.5
Width 9.0 12.0
Span 170
• Required range: 42.5 ± 2.5N⋅m
5-11-3. Placing the Support Table Surface Horizontally
To check flatness of the support table, attach a lever dial to the head's OCC camera bracket and
measure flatness near the center of each area circled in the figure below. Adjust the height of the
table so that the difference in flatness at the four positions is within 0.02 mm.
調節ねじ
（中央）
Figure 5-11-3-1 Measurement Locations and Adjustment Screw
Adjustment screw
(center)
Figure 5-11-2-1 Belt Tension Measurement
and Adjustment Position
Measuring
position
Weaker
Stronger
Measuring
position
Figure 5-11-1-1
Motor and Torque Supporter
FX-3R Maintenance Guide
5-16
Rev. 1.00
<Adjustment Procedure>
1) Select [Manual Control] → [Transport Control] to set the support table to a position of −27mm.
2) Based on the lowest point of four measured points, turn the adjustment screw in the down
direction (screw tightening direction) to make the adjustment so that the difference among four
measured points is 0.02mm or less.
∗ If all of three screws (screws around the adjustment screws) fixing the ball screw are loosened,
the table may be lowered. To prevent such trouble, always tighten the screws temporarily after
the adjustment with the adjustment screws has been completed.
∗ After the adjustment has been completed, make sure that the center of the rail guide shaft is
aligned with that of the side beam.
(A-dimension is 4mm±1mm.)
Figure 5-11-3-2 Rail Guide Shaft and Side Beam
Side beam setscrew