HS50_advance_level 2.pdf - 第405页
Stud ent Gu ide HS-5 0 Adva nced II 07/2 002 Ed ition 14 Conve yor System 31 Fig. 14.3.4 Removing Hold-Down Devices and Compression Springs f or Hold-Down Devices Key to Fi g. 14.3.4 A) PCB transpor t directi on B) Direc…
07/2002 Edition Student Guide HS-50 Advanced II
14 Conveyor System
30
Key to
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CAUTION O
Customers are not to loosen any screws (e.g., at the point of rotation of the rocking lever) which
have been secured with loctite. 14
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➠ Move the conveyor to PD[LPXPwidth so that you will be able to remove the lifting table plate
during a subsequent step.
➠ Move the Y-gantries into the area outside of the PCB conveyor.
➠ Turn the machine off at the main switch and disconnect the machine from the mains.
➠ Conscientiously secure the machine against reactivation during servicing work.
➠ Install the lifting table in the pertinent conveyor area, as described in section 14.3.8.1.
A) PCB transport direction B) Detail: conveyor toothed belt guide, syn-
chronizing disk
(Details: see Spare Parts Catalog)
C) Detail: bearing assembly of the hexagonal
drive shaft, end shield
(Details: see Spare Parts Catalog)
1) Movable side of conveyor (input to output
conveyor)
2) Belt guide, adjustable, fasteners are two
hexagonal socket head cap screws M3 x
10
3) PCB guide rails, fasten with M3 hexagonal
socket head cap screws
4) Toothed belt for intermediate conveyor
(fixed and movable side)
5) Toothed belt for all conveyor areas, except
intermediate conveyor
(fixed and movable side)
Student Guide HS-50 Advanced II 07/2002 Edition
14 Conveyor System
31
Fig. 14.3.4 Removing Hold-Down Devices and Compression Springs for Hold-Down Devices
Key to Fig. 14.3.4
A) PCB transport direction B) Direction of movement for removal of the
hold-down device
1) Fixed conveyor side (placement area 1,
intermediate conveyor, placement area 2)
2) Rocking lever assembly, right-hand (fixed
side) or
Rocking lever assembly, left-hand (mov-
able side)
WILL NOT BE REMOVED
3) Set screw M3 x 5 4) Ball bearing (remove to dismantle the lifting
table plate)
5) Compression spring on rocking lever 6) PCB guide rails
7) Compression spring for hold-down device 8) Retainer
07/2002 Edition Student Guide HS-50 Advanced II
14 Conveyor System
32
➠ Remove the 3 DU strips (see Fig. 14.3.4 -> 9) and the two guides for the hold-down devices
(cassettes: see -> 10 and 11) on the exterior. To do so, undo and remove the M3 cross-slotted
and hexagonal socket head cap screws.
➠ Remove the pertinent guide rails (see section Fig. 14.3.4 -> 6).
➠ Fold the hold-down device to the outside (direction of movement: see Fig. 14.3.4 -> B) and take
it off.
➠ During the process, remove the compression spring from the retaining bracket: see Fig.
14.3.4 -> 7 and 8).
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➠ For the installation of the new hold-down device and the (possibly new) compression spring,
carry out all of the steps in the reverse order to that described for the removal (see section
14.3.6.1).
➠ Install the lifting table as described in section 14.3.8.2.
➠ $OLJQthe re-installed JXLGHUDLOV as described in the following section 14.3.7 .
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➠ The conveyor must be completely assembled, however the guide rails of the side with cor-
rected faults should not yet be bolted tight.
➠ Remove all tools, etc., from the working area of the machine.
➠ Connect the machine to the mains, turn on the compressed air and turn on the machine.
➠ After the reference run, adjust the width of the PCB conveyor to the width of the adjustment
plate.
➠ Place DGMXVWPHQWSODWHRIDGHTXDWHOHQJWK in the PCB conveyor such that one-half of the
plate is in the adjusted area, the other in the area to be adjusted.
➠ Push the guide rail to be adjusted against the adjustment plate such that a clearance of 0.2 mm
exists and IDVWHQthe guide rail in this position.
➠ Manually push the adjustment plate through the entire PCB conveyor and make certain that it
moves easily during this process.
➠ Furthermore, make certain that the adjustment plate moves without resistance to the next con-
veyor (preceding/following machine).
9) DU strips (3 units) 10) Guide for hold-down device: cassette 1 or
2 (depending on placement area)
11) Guide for hold-down device: cassette 3 12) Adjusting shim 3 x 4.5 x 0.1
13) Sliding strips 2 for hold-down device 14) Sliding strips for hold-down device
15) Hold-down device 16) Screws fastening the retainer
2 slotted screws M4 x 6