00196614-03_AI_Vakuumpumpe_SXDX12_de_en - 第114页

Fitting the Vacuum Pump Converting Placement Heads 3.5.1 Conversion for C&P20 A/P 114 Vacuum Pump Vakuumpumpe 3.5.1.1 3 . 5 . 1 . 1 C o n n e c t in g t h e C o m p r e s s e d A ir D is t r ib u t o r t o t h e C &a…

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Fitting the Vacuum Pump
3.5.1 Conversion for C&P20 A/P Converting Placement Heads
Vacuum Pump Vakuumpumpe 113
3.5
3.5 Converting Placement Heads
Converting Placement Heads
3.5.1
3.5.1 Conversion for C&P20A/P
Conversion for C&P20 A/P
▪ Conversion kit for vacuum pump operation C&P20 [00119790-xx]
Original state - C&P20 A/P for compressed air operation
NOTICE
Restrictions for TwinHead or CPP head on the gantry to be converted
The TwinHead and CPP placement heads are not compatible with vacuum pump operation. Do
not convert the pneumatic supply for the gantry affected to vacuum mode. If the compressed
air supply for this head is converted to vacuum operation, the return cylinder will be unable to
move out and the Z axis will remain in its top position.
CAUTION
Conversion from C&P20 A/P head to TwinHead or CPP head
If you need to convert a gantry from C&P20 A/P to TwinHead or CPP head, you must re-estab-
lish the original compressed air supply for this gantry. Conversion reversal must be performed
on all assemblies for this gantry. Partial conversion of the pneumatic unit, for example, involving
disconnection of the gantry hoses (additional vacuum hoses) during compressed air opera-
tions, can lead to serious placement machine malfunctions.
CAUTION
Conversion from TwinHead to C&P20 A/P head with vacuum operation
If you need to convert a gantry with TwinHead to C&P20 A/P head with vacuum function, you
must retrofit the vacuum equipment for this gantry. If you operate a C&P20 A/P head which has
been converted for vacuum operation at a gantry with compressed air, this could lead to serious
damage to the placement head if the silicon hoses to the segments should loosen.
CAUTION
Preparatory work
After you have properly shut-down the operating system: turn the machine off at the main
switch and isolate it from the mains, before you perform any work to the machine. In addition,
the compressed air supply must be turned off at the main valve of the compressed air unit, in
the machine base, and the compressed air lines must be bled by actuating the needle valve on
the compressed air unit. See also "1.2 Preparatory Work..." [ ➙ 73].
Fitting the Vacuum Pump
Converting Placement Heads 3.5.1 Conversion for C&P20 A/P
114 Vacuum Pump Vakuumpumpe
3.5.1.1
3.5.1.1 Connecting the Compressed Air Distributor to the C&P20A/P Head
Connecting the Compressed Air Distributor to the C&P20 A/P Head
3.5.1.2
3.5.1.2 Removing the Silencer
Removing the Silencer
3.5.1.3
3.5.1.3 Removing the Vacuum Unit Holding Circuit C&P20A/P
Removing the Vacuum Unit Holding Circuit C&P20 A/P
In series operation without a vacuum pump, the complete
compressed air distributor is supplied with compressed
air at the SX1/SX2. Once you convert to vacuum pump
operation, the upper Festo coupling on the distributor
(compressed air) must be connected to the C&P20 A/P
head.
The lower hoses (1) are now supplied with vacuum.
The upper hose (2) is supplied with compressed air for
the pressure control valve and the return cylinder.
C&P20 A/P with porous silencer for compressed air
► Make sure that you do not damage or contaminate
the camera lens system.
► Remove the screw (1) fastening the silencer.
► Carefully lever out the silencer.
► Make sure that you do not damage the DP drives.
C&P20 A/P with vacuum unit holding circuit
► Unscrew the three screws and remove the vacuum
unit holding circuit for the C&P20.
Fitting the Vacuum Pump
3.5.1 Conversion for C&P20 A/P Converting Placement Heads
Vacuum Pump Vakuumpumpe 115
3.5.1.4
3.5.1.4 Fitting the Aperture Ring and Vacuum Cover
Fitting the Aperture Ring and Vacuum Cover
NOTICE
Aperture ring
Before inserting the aperture ring, make sure that the seal disk [03046345-xx] has been posi-
tioned correctly (orientation) on the aperture ring for the C&P20 A/P [03046344-xx].
When inserting the new aperture ring for the C&P20 A/P, make sure that the pin engages in the
relevant hole on the star carrier. The aperture ring should remain fixed from alone.
Aperture ring C&P20 A/P with seal disk
► When tightening the screws, carefully take hold of the
star near the segment guidances and hold it on the
star carrier.
► Make sure you do not damage the aperture ring or
nozzles.
C&P20 A/P with aperture ring C&P20 A/P [03046344
-
xx]
► Screw the aperture ring tight using the DIN912-
M3x10 screws. Make sure that it is not distorted.
► On a C&P20 A tighten the screws with a torque of
25 Ncm; on a C&P20 P head, hand-tighten the
screws.
► Check whether the O-ring 42x2 NBR70 has been
properly placed into the groove on the aperture ring.