西门子SIPLACE S-27 HM用户手册.pdf - 第93页

User Manual SIPLAC E S-27 HM 3 Technical data Software vers ion SR.503.xx 07/2003 US Edition 3.8 Placem ent heads 93 3.8.2 6-segment Collect& Place head with sta ndard component camera 3 Fig. 3.8 - 3 6-s egment Colle…

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3 Technical data User Manual SIPLACE S-27 HM
3.8 Placement heads Software version SR.503.xx07/2003 US Edition
92
3.8.1.1 Description
The 12-segment Collect&Place head works using the "collect & place" principle, i.e. the com-
ponents are held by the nozzles with the aid of a vacuum and, after one complete pick-up cycle,
are placed gently and accurately on the PCB with the aid of forced air. The vacuum in the noz-
zles is also checked several times to determine whether the components were picked up and
set down correctly.
The "adaptive" sensor stop mode of the z axis compensates for any irregularity of the PCB sur-
face when the components are set down.
All the components are inserted with the same cycle time. Before the component is inserted, it
is measured by the optoelectronic vision module.
The component camera creates an image of the current component.
The precise position of the component is also determined.
The package form of the current component is compared against the programmed package
form in order to identify it. Any components that cannot be identified are rejected.
The turning station turns the component to the required placement position.
Defective components are rejected and are picked up again during a repair run.
3.8.1.2 Technical data
3
Component range 0201 to PLCC44, including BGA, µBGA, flip-chip,
TSOP, QFP, PLCC, SO to SO32, DRAM
Component specification
Max. height
Min. lead pitch
Min. bump pitch
Min. ball/bump diameter
Min. dimensions
Max. dimensions
Max. weight
6 mm (10.7 mm available upon request)
0.5 mm
0.35 mm
0.2 mm
0.6 mm x 0.3 mm
18.7 mm x 18.7 mm
2 g
Programmable set-down force 2.4 to 5.0 N
Max. placement rate 13.250 comp/h
Nozzle types 9 xx
Angular accuracy ± 0.7° / 4 sigma
Placement accuracy ± 90 µm / 4 sigma
User Manual SIPLACE S-27 HM 3 Technical data
Software version SR.503.xx 07/2003 US Edition 3.8 Placement heads
93
3.8.2 6-segment Collect&Place head with standard component camera
3
Fig. 3.8 - 3 6-segment Collect&Place head - Function groups, part 1
3
(1)Vacuum generator
(2)Turning station, DP axis
(3)Star with 6 sleeves, DR axis
(4)Forced air valve
(5)Silencer
3 Technical data User Manual SIPLACE S-27 HM
3.8 Placement heads Software version SR.503.xx07/2003 US Edition
94
3
Fig. 3.8 - 4 6-segment Collect&Place head - Function groups, part 2
3
(1) Intermediate distributor board, beneath the cover
(2) Star drive - DR motor
(3) Z axis motor
(4) Valve adjustment drive
(5) 39 x 39 component camera