00195941-03-UM SiplaceCA-EN - 第204页
3 Technical Data User Manual SIPLACE CA 3.8 Placement Heads Edition 08/2011 EN 204 3.8.6 SIPLACE T winHead fo r High-Precision IC Placement NOTE 3 The T winHead can only be used, if – There are 2 gantries available in th…
User Manual SIPLACE CA 3 Technical Data
Edition 08/2011 EN 3.8 Placement Heads
203
3.8.5.4 Technical Data
3
6 segment Collect&Place CA head with high-resolution com-
ponent camera, type 29, 27 x 27, digital
d
(see section 3.13.4, page 228)
Range of components
a
a) Please note that the component range that can be placed is also affected by the pad geometry, the customer-spe-
cific standards and the packaging tolerances.
0201 to 27 mm x 27 mm
Component specifications
Maximum height
Min. lead pitch
Min. lead width
Min. ball pitch
min. ball diameter
Min. dimensions
Maximum dimensions
Max. weight
8,5 mm
0,3 mm
0,15 mm
0,13 mm
b
0,35 mm
c
0,08 m
b
0,2 mm
c
0,6 mm x 0,3 mm
27 mm x 27 mm
5 g
b) for component < 18 mm x 18 mm;
c) for component < 18 mm x 18 mm;
d) C&P6CA with SWS on request
Nozzle types 8 xx, 9 xx
X/Y accuracy (SMD) ± 45 µm/3,± 60 µm/4
X/Y accuracy (CA) ± 35 µm/3, ± 47 µm/4
Angular accuracy ± 0.2°/3,± 0.3°/4
3 Technical Data User Manual SIPLACE CA
3.8 Placement Heads Edition 08/2011 EN
204
3.8.6 SIPLACE TwinHead for High-Precision IC Placement
NOTE 3
The TwinHead can only be used, if
– There are 2 gantries available in the same placement area and
– no SWS is used in the same placement area.
3
Fig. 3.8 - 12 TwinHead for high precision IC placement
3
(1) Pick&Place module - the TwinHead consists of 2 Pick&Place modules (P&P1 and P&P2)
(2) DP axis
(3) Z axis drive
(4) Incremental distance measuring system for the Z axis
User Manual SIPLACE CA 3 Technical Data
Edition 08/2011 EN 3.8 Placement Heads
205
3.8.6.1 Description
This highly developed placement head consits of two placement heads of the same design cou-
pled to one another (Twin head), which operate by the Pick&Place principle. The TwinHead is suit-
able for processing particularly difficult or large components. Two components are picked up by
the placement head, optically centered on the way to the placement position and rotated into the
necessary placement angle. They are then placed gently and accurately onto the PCB with a con-
trolled blast of air.
New nozzles (type 5xx) have been developed for the TwinHead. With the help of an adapter, you
can also use nozzles from the Pick&Place head, of type 4xx and nozzles from the Collect&Place
CA heads, of type 8xx and 9xx.
Control and Self-Learning Functions 3
The TwinHead's reliability can be further increased with various checking and self-learning func-
tions.
– For example, vacuum checks at the nozzles indicate whether the component was picked up
or set down correctly.
– A force sensor measures and monitors the specified component placement forces.
– High-resolution, intelligent vision modules, such as the fine-pitch and flip-chip vision modules,
identify and correct minute deviations from the desired component position, thus guarantee-
ing a correct placement position. The component cameras are permanently fixed to the ma-
chine frame.
– The component package form is also checked, and the component is not placed if the geo-
metric data thus determined differs from the programmed data.
– In the event of compressed air or power failure, the vertical axis (Z-axis) is lifted to a safe po-
sition, to prevent a head crash.
3.8.6.2 Functional Description
The TwinHead consists of two Pick&Place heads that are coupled to one another, but are con-
trolled independently. Each head has two axes, the Z-axis and the DP axis (see fig. 3.8 - 11
).
The travel range of the Z-axis is recorded with a high-resolution linear incremental measuring sys-
tem. The Z axis performs a vertical movement. A linear motor raises and lowers the Z axis, and
components are picked up from feeder modules or trays and lowered onto the PCB. The Z axis is
an "intelligent axis". It "notes" the pickup height for feeder modules and trays and the placement
height for each component. This can speed up the placement process. The programmed place-
ment force is measured and monitored by a force sensor.
The DP axis rotates the optically centered component to the desired placement angle. The rota-
tion axis is driven by a stepping motor. The motor shaft is designed as a sleeve. At the top end is
the incremental disk for angle analysis, while the nozzle holding device is at the bottom end.