MEC-CP842-1.0E.pdf - 第161页

Adjustments >> Station Adjustments MEC-CP842-1.0E 7-25 7.1.8 Fine-thet a Movement (ST8) Point Based on the vision processing data from station 5, stat ion 8 rotates a part to the final placement angle. Clutch Meshi…

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Adjustments >> Station Adjustments
7-24 MEC-CP842-1.0E
7.1.7 Pre-theta Movement (ST2)
Point
After the nozzle picks up the part at station 1, pre-theta at station 2 rotates the nozzle
by 90°, 180° or -90° depending on the settings in the production program.
Clutch Meshing Check
Perform this check on the LOW nozzle.
Note: The LOW nozzle refers to the nozzle shaft with the shortest vertical stroke when pushed
down by the clutch. Use the LOW nozzle for checking the stroke at stations 2, 8 and 10.
1 Press the EMERGENCY STOP button to take the 200V down to 100V.
2 Zero the dial gauge on the bottom of the nozzle shaft brake when there is no con-
tact between the clutches.
3 Use the cam handle to rotate the cam to 200°.
4 Ensure that the clutches mesh properly and that the LOW nozzle shaft deflects
the dial gauge by 0.30 ~ 0.35 mm, as illustrated below.
WARNING
• Press EMERGENCY STOP before performing this procedure.
• Exercise extreme caution when working on the machine if the cam
is not at its origin (0 deg.). Spring recoil can rotate the cam inde-
pendently.
Measure the vertical stroke
at all nozzles to determine the
lowest value.
C7SM4058
Clutch
Nozzle shaft brake
ST2
Rod
Measure the
vertical stroke
0.30~0.35 mm
C7SM4027a
Adjustments >> Station Adjustments
MEC-CP842-1.0E 7-25
7.1.8 Fine-theta Movement (ST8)
Point
Based on the vision processing data from station 5, station 8 rotates a part to the final
placement angle.
Clutch Meshing Check
Perform this check on the LOW nozzle.
Note: The LOW nozzle refers to the nozzle shaft with the shortest vertical stroke when pushed
down by the clutch. Use the LOW nozzle for checking the stroke at stations 2, 8 and 10.
1 Press the EMERGENCY STOP button to take the 200V down to 100V.
2 Zero the dial gauge on the bottom of the nozzle shaft brake when there is no con-
tact between the clutches.
3 Use the cam handle to rotate the cam to 200°.
4 Ensure that the clutches mesh properly and that the LOW nozzle shaft deflects
the dial gauge by 0.30 ~ 0.35 mm, as illustrated below.
WARNING
• Press EMERGENCY STOP before performing this procedure.
• Exercise extreme caution when working on the machine if the cam
is not at its origin (0 deg.). Spring recoil can rotate the cam inde-
pendently.
Measure the vertical stroke
at all nozzles to determine the
lowest value.
C7SM4058
Clutch
Nozzle shaft brake
ST8
Rod
Measure the vertical
stroke
0.30~0.35 mm
C7SM4026a
Adjustments >> Station Adjustments
7-26 MEC-CP842-1.0E
7.1.9 Nozzle Vertical Movement During Placement
(ST9)
Slider Adjustment
Adjust the height of the slider to ensure that the cam follower passes smoothly
through the slider and along the cam groove.
1 Press the EMERGENCY STOP button to take the 200V down to 100V.
2 In order to remove the nozzle shaft assembly, it is first necessary to remove the
upper clutch. Set the cam angle to 0° (nozzle shaft between ST9 and ST10) and
hold the shaft with a wrench (DCPJ0450) while loosening the Allen bolt. Turn
the loosened bolt by hand and then remove the clutch. (See illustration on the
next page.)
Caution:Remove the G or O nozzle shaft assemblies, because the turret slot are wider for these 2
shafts. Some maintenance is much more difficult with other turret slots.
3 Remove the linear guide clampers and vacuum hose, then remove the nozzle
shaft assembly.
Caution:When handling the nozzle shaft assembly exercise caution to ensure that the linear guide
and outer shaft do not become separated.
WARNING
• Press EMERGENCY STOP before performing this procedure.
• Exercise extreme caution when working on the machine if the cam
is not at its origin (0 deg.). Spring recoil can rotate the cam inde-
pendently.
Outer shaft
C7SM4011a
Linear guide