80S-2080F480F5 - 第399页
SIPLACE 80S-20/F4/F5 User M anual 5 Vision Func tions 05/99 Issue from Software Vers ion SR.405.xx 5.11 Coplanarity Laser Module (S IPLACE 80F4 or 8 0F5 only) Line en gineer 5 - 167 5.1 1 Coplanarity Laser Module (SIPLAC…
5 Vision Functions SIPLACE 80S-20/F4/F5 User Manual
5.10 Test Component: Supplements to the 80F4 or 80F5 Machines 05/99 Issue from Software Version SR.405.xx
5 - 166 Line engineer
Fig. 5.10.4
Test component
menu,
Select component type
option
You should select this option when centering errors occur with standard lighting. The 4 possibilities available
here for selection enable you to match the lighting optimally to the component in question. Each of these
options contains certain combinations of the flat, middle and steep types of illumination.
Mouse functions
Use the mouse pointer to mark the corresponding component type.
With
OK
confirm your input and the option field will be closed. You will be returned to the
Test component
menu.
Click on
Cancel
to quit the option field without taking over any modifications you may have changed.
SIPLACE 80S-20/F4/F5 User Manual 5 Vision Functions
05/99 Issue from Software Version SR.405.xx 5.11 Coplanarity Laser Module (SIPLACE 80F4 or 80F5 only)
Line engineer 5 - 167
5.11 Coplanarity Laser Module
(SIPLACE 80F
4
or 80F
5
only)
5.11.1 Description of Functioning
The coplanarity laser module is used for measuring vertical bending in the connection leads of components.
The leads height is measured by a non-contact method working on the principle of laser triangulation.
The placement head picks up the component which is to be checked, centers it optically with the IC camera
and then moves each of its four sides in turn over the stationary laser beam of the coplanarity laser module.
Here each lead is scanned from the bottom up by the laser beam. The laser light scattered by the underside of
the leads is detected by a sensor and serves as a basis for calculating the exact position of the lead with
respect to the board. The positional values thus obtained are then compared with the limit value specified by
the user. If this value is exceeded, the component will be discarded or returned.
Fig. 5.11.1 Laser triangulation principle of measurement
- Key to Fig. 5.11.1
1 Receiver lens 2 Detector
3 Measurement signal 4 Time t
5 Laser 6 Transmitter lens
7 Direction of travel
The coplanarity laser module is used in combination with optical component centering using the vision sys-
tem. Components with bent or missing leads will be detected and discarded as appropriate.
1
2
3
4
5
6
7
z = 0
+Z
+Z’
Z’ = 0
5 Vision Functions SIPLACE 80S-20/F4/F5 User Manual
5.11 Coplanarity Laser Module (SIPLACE 80F4 or 80F5 only) 05/99 Issue from Software Version SR.405.xx
5 - 168 Line engineer
5.11.2 Technical Data
Components: Can be used for gull-wing component shapes
Component size and leads pitch restricted by the
components position recognition system -
in other words, max. size 43.0 mm x 43.0 mm x 11.0mm.
Measurement principle: Non-contact measurement using laser-triangulation
Algorithm functions: JEDEC standard calculation of the placement level; all
deviations will be determined with reference to this level.
If a component is positioned askew in the nozzle, something which
can be caused by an adapter, this will thus have no influence on
the good / bad decision.
Output: < 5 mW
Measuring range: ± 2.5 mm
Laser focus: Elliptical, 50µm x 95µm
Temperature stability: ± 1µm/K
Wavelength: 670 nm
Resolution: 0.25µm
Scanning rate: 10 kHz
Weight: 500 g
Operating temperature: 0°C ... 40
Atmospheric humidity: 5 - 95% non-condensing
Ambient pressure: Atmospheric pressure
Vibration: In accordance with IEC 68-2-6
Mechanical shock: In accordance with IEC 68-2-27
EMC: In accordance with EN 50081-2, emitted interference
(electromagnetic compatibility) In accordance with EN 50082-2, resistance to interference
Degree of protection: IP 64
Dimensions: 118 mm x 30 mm x 125.5 mm
Admissible secondary light: 30.000 lx
Safety: When installed in the machine the coplanarity module corresponds to
Laser class 1
. Outside the machine and without additional
wiring or interference with the safety features the module cannot
function. If the machine’s safety features should be circumvented
it will automatically be deemed to correspond to
Laser class 3B
-
Risk of injury to eyes and skin
and therefore protective measures
as specified in VBG 93 will be required.