D-serie level 1 EN - 第51页
Overview SIPLACE Vision Assemblies S tude nt Guide Advanced Level 1 SIPLACE D-Series EN 05/2007 Overview 3-27 3.4.9.1 Digit al PCB Camera (T ype 34) T echnical Dat a Fiducial Criteria 3-21: PCB camera under the gantry (X…
Overview
Assemblies SIPLACE Vision
Student Guide Advanced Level 1 SIPLACE D-Series
Overview EN 05/2007
3-26
3.4.8.2 Nozzle Changer for 12 Segment C&P Head
Optionally, a nozzle changer can be installed for each C&P head. This enables the nozzle configuration
to be changed quickly, thus allowing the Collect&Place head to be quickly adapted to the needs of the
placement process.
The nozzle changer consists of at least one and up to five magazines, each of which is equipped with
up to twelve nozzle garages. The magazines are seated on a common support and each magazine is
centered using two pins and is fixed in place with a spring hook.
Each garage can be configured with different nozzle types.
3.4.9 SIPLACE Vision
The digital SIPLACE Vision solution is another step towards the satisfaction of customer demands for
greater speed, flexibility and robustness.
Advantages of the digital Vision system:
Robust and fast computing algorithms
Flexible measurement processes
Intuitive graphical user interface
Geometric description of components at the machine
State-of-the-art digital camera hardware
Homogenous illumination of camera Field of view and components
Each C&P head has its own digital component camera.
3-20: Nozzle changer and nozzle magazine for C&P12 (D4 shown as
example)
Legend
1. Calibration fiducial on magazine
2. Locking plate
3. Nozzle garage
4. Hole for centering pin, for exact positioning of
magazine
5. Hole for driver pin, for opening and closing of
magazine
6. Slit for centering pin, for exact positioning of
magazine
7. Transport direction
8. Nozzle reject device
9. Nozzle reject container
10. Tape duct
11. Fastening screws for nozzle changer (4x)
Overview
SIPLACE Vision Assemblies
Student Guide Advanced Level 1 SIPLACE D-Series
EN 05/2007 Overview
3-27
3.4.9.1 Digital PCB Camera (Type 34)
Technical Data
Fiducial Criteria
3-21: PCB camera under the gantry (X-axis)
Legend
1. PCB camera optics and illumination
2. Camera amplifier
PCB fiducials Up to 3 (panels and cluster panels),
Up to 6 for the option "long board" (optional fiducials are issued by the
optimization process).
Local fiducials Up to 2 per PCB (can be of different types)
Library archive Up to 255 fiducial types per panel
Image processing Edge detection method (single feature) based on gray values
Method of illumination Front-lighting (3 levels, programable as required)
Recognition time per
Fiducial/bad fiducial
20 ms - 200 ms
Field of view 5.78 x 5.78 mm2
Distance from the focus plane 28 mm
Technical Data for Camera Type 34
Determine 2 fiducials X/Y position, angle of twist, central PCB displacement
Determine 3 fiducials Additional: shearing, displacement separately in X and Y direction
Fiducial shapes Synthetic fiducials: circle , cross , square , rectangle , diamond , circular,
square and rectangular contours, doublecross
Pattern: any
Fiducial surface
Copper Without oxidation and soldering paste
Tin Warpage 1/10 of the structure width, with good contrast to surroundings
Overview
Assemblies SIPLACE Vision
Student Guide Advanced Level 1 SIPLACE D-Series
Overview EN 05/2007
3-28
Inkspot Criteria
Dimensions of synthetic fiducials
Min. X/ Y size for circle and rectangle: 0.25 mm
Min. X/ Y size for square ring and rectangle frame: 0.3 mm
Min. X/ Y size for cross: 0.3 mm
Min. X/ Y size for doublecross: 0.5 mm
Min. X/ Y size for diamond: 0,35 mm
Min. frame width for square ring and rectangle frame: 0,1 mm
Min. bar width/bar spacing for cross, doublecross: 0,1 mm
Max. X/ Y size for all fiducial shapes: 3 mm
Max. bar width/bar spacing for cross, doublecross: 1,5 mm
Min. general tolerances: 2% of nominal
dimensions
Max. general tolerances: 20% of nominal
dimensions
Dimensions of templates
Min. size 0.5 mm
Max. size 3 mm
Fiducial surroundings Space is not needed around the fiducials, provided there are no other similar
fiducial structures in the search field.
Methods Synthetic fiducial detection procedures
Middle gray value
Histogram method
Template matching
Size of fiducial shapes or structures
Synthetic fiducials
For dimensions of synthetic fiducials, see Section
Fiducial Criteria [J3-
27]
.
Other methods Min. 0,3 mm
max. 5 mm
Cover material Covers well
Recognition time Depending on method, 20 ms - 0.2 s