80S-20贴片机 - 第276页
8 IC Head S IPLACE 80S-20/F4 Service Manual 8.3 Servicing W ork on the Z Axis Edition 01/97 8 - 14 ● Check th at you h ave rel eased t he z axis clampin g devi ce. The sl eeve m ust move e asily . If i t does not move ea…
SIPLACE 80S-20/F4 Service Manual 8 IC Head
Edition 01/97 8.3 Servicing Work on the Z Axis
8 - 13
Key to Fig. 8.3.1
5HSODFHWKH6OHHYH
See item 12 in Fig. 8.3.2 page 8 - 15
If the sleeve has been broken the head has to be repaired by Siemens because the ball bearings of the z-axis
may have been damaged, too. If the shaft seizes due to the ball bearings of the z-axis or the z-clamping the
head must always be repaired by a Siemens.
WARNING ∆
!
This servicing work may only be carried out by authorized and trained personnel.
● Remove the clip (item 7, Fig. 8.3.2 page 8 - 15) from the vacuum connector at the top of the sleeve.
● Pull the vacuum hose off the vacuum connector (item 8).
● Fix the sleeve removal mount to the lower end of the sleeve.
● Firmly hold the sleeve and the sleeve removal mount and then loosen the hexagonal nut (item 9) at the top
of the sleeve using the size 13 open-ended spanner.
● Using a 2 mm hexagon socket head spanner, loosen the fixing screw (item 5) on the clamping part
(item 6).
WARNING ∆
!
Before you remove the sleeve, loosen the z axis clamping device by pressing the red push-button on the
solenoid valve for the z axis clamping device (see items 4 and A, Fig. 8.2.1 page 8 - 4).
● Pull the sleeve down and out.
To reassemble the sleeve
● Insert the new sleeve from the bottom.
1 Synchronizing disc Al 10 T2/26-0 2 Star with spring steel sheet
3 Friction wheel 4 Motor/tacho for dr axis
5 Motor/tacho for z axis 6 End position BERO
7 Synchroflex 6 T2/220 toothed belt 8 Mount
Mounting instructions
A Toothed belt tension: 190 Hz ± 5 Hz B The end face of the z motor must be flush with the mount
C Zero point correction value:
0.4 mm = 10 digits
D The end face of the BERO must be flush with the mount
8 IC Head SIPLACE 80S-20/F4 Service Manual
8.3 Servicing Work on the Z Axis Edition 01/97
8 - 14
● Check that you have released the z axis clamping device. The sleeve must move easily. If it does not move
easily, the linear ball bearing may be defective (item 1, Fig. 8.3.2 page 8 - 15). If this is the case, return the
IC head to Siemens for repair.
● Tighten the hexagonal nut (item 9, Fig. 8.3.2 page 8 - 15) at the top of the sleeve.
● Firmly clamp the clamping piece (item 6, Fig. 8.3.2 page 8 - 15). Ensure it does not strike against the top or
the bottom when the sleeve is moved up and down. If necessary, center the clamping piece.
● Check again that the sleeve moves easily when the z axis clamping device is deactivated. If it does not,
the problem may be caused because the precision shaft (item 4) and the sleeve are not aligned parallel to
one another.
● Align the two parts as follows:
– Push the sleeve until it reaches the top position.
– Using a 2 mm hexagon socket head spanner, loosen the screw (item 3) on the clamping piece
(item 2). The precision shaft (item 4) will align itself.
– Tighten the hexagon socket head screw (item 3) once more. The precision shaft is now aligned.
– Re-establish the vacuum connector.
● Set the zero point correction values for the z axis (see section 8.3.9) and the dr axis
(see section 8.4.4, page 8 - 17).
'HWHUPLQHWKH=HUR3RLQW&RUUHFWLRQIRUWKH=$[LV
PLEASE NOTE
The zero point correction is correct if the z axis is at the top mechanical stop and a value of - 10 digits for the
z position is displayed.
The zero point correction value should be between - 80 and - 120 digits. If this is not the case, you will have to
move the toothed belt slightly. The new zero point correction value can be calculated using the following equa-
tion:
ZPC
NEW
= ACTUAL - DESIRED + ZPC
OLD
([DPSOH
Position at the top mechanical stop = -15 (ACTUAL)
Desired value = -10 DESIRED)
ZPC
OLD
= - 110 digits
ZPC
NEW
= - 15 - (-10) + (- 110)
= - 15 + 10 - 110
=- 115
SIPLACE 80S-20/F4 Service Manual 8 IC Head
Edition 01/97 8.3 Servicing Work on the Z Axis
8 - 15
Key to Fig. 8.3.2
1 Linear ball bearing 2 Clamping piece
3 Hexagon socket head screw 4 Precision shaft 5 x 76.5
5 Hexagon socket head screw (2 mm) 6 Clamping piece
7 Clip 8 Vacuum connector
9 Hexagon nut 10 Anti-rotation lock
11 Bearing housing 12 IC head sleeve
5
4
3
2
1
6
9
8
7
10
11
12