SIPLACE S-23 HM.pdf - 第48页

1 Introduction, technical data User M anual SIPLACE S -23 HM 1.14 Overview of the modules - vision systems Software Version SR.406.xx 02/00 US Edition 48 1.14.2 T echnical dat a - PCB vision module Fiducials Up to 3 p er…

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User Manual SIPLACE S-23 HM 1 Introduction, technical data
Software Version SR.406.xx 02/00 US Edition 1.14 Overview of the modules - vision systems
47
1.14 Overview of the modules - vision systems
Each placement system has 1
– two component vision cameras on the placement heads and
– two PCB vision cameras on the underside of the X-axis gantries.
1
The vision analysis unit is located in the control unit for the placement system and the component
vision system is used to determine: 1
– the precise position of the components at the nozzle and
– the geometry of the package form.
1
The PCB vision system uses fiducials on the PCBs to determine: 1
– the position of the PCB,
– its rotation angle
– and the PCB delay.
1
The PCB vision system also uses fiducials on the feeder modules to determine the exact pick-up
position of components, which is particularly important for small components. 1
1.14.1 Technical data - component vision module on the 12-segment revolver head
Maximum component dimensions 0.5 mm x 1.0 mm up to 18.7 mm x 18.7 mm
Range of components 0402 to PLCC44
including BGA, µBGA, flip-chip, TSOP, QFP
PLCC, SO to SO32, DRAM
Lead spacing 0.5 mm
Field of vision 24 mm x 24 mm
Illumination method Front-lighting
(3 levels programmable as required)
1 Introduction, technical data User Manual SIPLACE S-23 HM
1.14 Overview of the modules - vision systems Software Version SR.406.xx 02/00 US Edition
48
1.14.2 Technical data - PCB vision module
Fiducials Up to 3 per placement program
Local fiducials Up to 2 per component (may be of different types)
Library size Up to 255 fiducial types - system fiducials ≥ 249
Image processing Gray scale-based correlation
Illumination method Front-lighting
Recognition time per fiducial/ink spot 0.4 s
Field of vision 5.7 mm x 5.7 mm
User Manual SIPLACE S-23 HM 1 Introduction, technical data
Software Version SR.406.xx 02/00 US Edition 1.15 Overview of the modules - PCB conveyor
49
1.15 Overview of the modules - PCB conveyor
1.15.1 Structure of the PCB conveyor
The placement system is supplied with a single conveyor as standard. A dual conveyor is avail-
able as an option. 1
The left or the right side of the PCB conveyor can be used as the stationary side, as required. 1
1
Fig. 1.15 - 1 PCB transport - single conveyor
(1) Input conveyor (2) Center conveyor
(3) Output conveyor (4) Lifting table
(5) Width adjustment T Direction of PCB transport 1