00195760-0102_UM_D3_SR605_EN - 第336页
6 Station extensions User Manual SIPLACE D3 6.17 Coplanarity laser module From software version SR.605.xx 07/2008 EN Edition 336 The T winHead picks up the component to be checked , centers it optically using the compo n…
User Manual SIPLACE D3 6 Station extensions
From software version SR.605.xx 07/2008 EN Edition 6.17 Coplanarity laser module
335
The working laser is signaled by an LED (see Section 6.17.6, page 338). NEVER look directly into
the laser beam, despite the low laser output. The beam is visible, so the eyes will be protected by
the natural eyelid-closing reflex.
WARNING 6
Only authorized personnel may open the housing of the optical sensor.
For repair and servicing, always return the sensors to SIPLACE.
6.17.2 Description
The coplanarity laser module is used to measure vertical bending of the leads. The lead length is
measured without contact using the laser triangulation principle.
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Fig. 6.17 - 2 Laser triangulation measurement principle
(1) Receiver lens
(2) Detector
(3) Measuring signal
(4) Time t
(5) Laser
(6) Transmitter lens
(7) Travel direction
6 Station extensions User Manual SIPLACE D3
6.17 Coplanarity laser module From software version SR.605.xx 07/2008 EN Edition
336
The TwinHead picks up the component to be checked, centers it optically using the component
vision camera (see Section 6.6
, page 315) and moves all four sides one after another over the
fixed laser beam of the coplanarity laser module. In this way, every lead is scanned from below by
the laser beam. The laser light scattered by the underside of the lead is recorded by a sensor, and
is then used to calculate the exact position of the lead with respect to the PCB. The position values
thus calculated are compared against the limit value specified by the user. If they exceed this
value, the component is disposed of or returned.
The coplanarity laser module is used in combination with the optical component centering mode.
Components with bent or missing leads are detected and disposed of, if necessary.
6.17.3 Technical data
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6.17.4 Restrictions
– The component must have a minimum of two and a maximum of four rows of gull-wing leads.
– The row of leads should be located orthogonally to each other.
– The leads should be trained orthogonally to the row of leads.
– The ends of the leads lie on a straight line.
– Measurement of components with just one row of leads is not possible.
Components Gullwing
Accuracy ± 18.5 µm (3σ) (reference component)
± 24.7 µm (4σ)
± 30.5 µm (3σ) (components up to 32 mm)
± 40.7 µm (4σ)
± 31.3 µm (3σ) (components up to 55 mm)
± 41.7 µm (4σ)
Max. component size 55 x 55 mm²
Min. lead pitch 300 µm
Max. component height 25 mm
Positioning option Location 3
Placement head type TwinHead
User Manual SIPLACE D3 6 Station extensions
From software version SR.605.xx 07/2008 EN Edition 6.17 Coplanarity laser module
337
6.17.5 Identify machine with warning label W216
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Warning label W216 "Laser class 2" on the cover beside the main switch,
item no. 03010316-01 (number per machine: 1)
PLEASE NOTE 6
When the coplanarity laser module is fitted, the machine must be classified as laser class 2. The
laser module is not integrated into the EMERGENCY STOP circuit.
→ Identify the machine with warning sign W216 "Laser class 2", item no. 03010316-xx.
→ Stick warning label W216 beside the main power switch on the cover (see Pos. W216 in Fig.
6.17 - 3
, page 337).
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Fig. 6.17 - 3 Warning label W216 beside the main switch
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LASER RADIATION!
Do not look into beam
Laser class 2