D-serie LEVEL II.pdf - 第61页
Communication and Control Digital PCB Camera (Type 34) SIPLACE Vision S tude nt Guide Advanced Level 2 SIPLACE D Series EN 05/2 007 Communication and Control 4-21 4.4.1.3 Inkspot Criteria Dimensions of sy nthetic fiducia…
Communication and Control
SIPLACE Vision Digital PCB Camera (Type 34)
Student Guide Advanced Level 2 SIPLACE D Series
Communication and Control EN 05/2007
4-20
4.4.1 Digital PCB Camera (Type 34)
4.4.1.1 Technical Data
4.4.1.2 Fiducial Criteria
4-18: 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
Communication and Control
Digital PCB Camera (Type 34) SIPLACE Vision
Student Guide Advanced Level 2 SIPLACE D Series
EN 05/2007 Communication and Control
4-21
4.4.1.3 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 [J4-
20]
.
Other methods Min. 0,3 mm
max. 5 mm
Cover material Covers well
Recognition time Depending on method, 20 ms - 0.2 s
Communication and Control
SIPLACE Vision Optional Digital Component Camera C&P12 (Type 38)
Student Guide Advanced Level 2 SIPLACE D Series
Communication and Control EN 05/2007
4-22
4.4.2 Optional Digital Component Camera C&P12 (Type 38)
4.4.2.1 Technical Data
4.4.3 Digital Component Camera C&P12 (Type 28)
4-19: Component camera as option on the C&P12 head
Legend
1. Component camera optics and illumination
2. Camera amplifier
3. Illumination control
4. Flat ribbon cable holder for C&P head leads
5. Camera fixtures
2 x fixture drillings and 1 x centering drilling
each on both sides
The camera type 38 can be recognized by its type
label.
Component
dimensions
0.2 x 0.1 mm
2
to 16 x 16 mm
2
Component range 0.2 x 0.1 mm² (01005) to PLCC36 (32R)
Min. lead pitch 0,1 mm
Min. ball pitch 0.25 mm
Min. ball diameter 0.14 mm
Field of view
20.5 x 20.5 mm
2
Method of
illumination
Front lighting (6 programmable options on 4 levels )
Technical data for camera type 38
4-20: Component camera as default on the C&P12 head
Legend
1. Component camera optics and illumination
2. Camera amplifier
3. Illumination control
4. Flat ribbon cable holder for C&P head leads
5. Camera fixtures
2 x fixture drillings and 1 x centering drilling
each on both sides
6. The low construction helps you to differentiate
camera type 28 from camera type 29.