00195741-0102_UM_D1_D2_SR605_EN.pdf - 第309页
User Manual SIPLACE D1/D2 6 Station extensions From software version SR.605.xx 07/2008 EN Edition 6.16 Coplanarity laser module 309 6.16.3 T echnical data 6 6 6 6.16.4 Restrictions – The component must have a mini mum of…
6 Station extensions User Manual SIPLACE D1/D2
6.16 Coplanarity laser module From software version SR.605.xx 07/2008 EN Edition
308
6.16.2 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. 6.16 - 3 Laser triangulation measurement principle
(1) Receiver lens
(2) Detector
(3) Measuring signal
(4) Time t
(5) Laser
(6) Transmitter lens
(7) Travel direction
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The Pick&Place head picks up the component to be checked, centers it optically using the com-
ponent camera (see Section 6.3
, page 285) 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.
User Manual SIPLACE D1/D2 6 Station extensions
From software version SR.605.xx 07/2008 EN Edition 6.16 Coplanarity laser module
309
6.16.3 Technical data
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6
6
6.16.4 Restrictions
– The component must have a minimum of two and a maximum of four rows of gullwing 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 2
Placement head type TwinHead
6 Station extensions User Manual SIPLACE D1/D2
6.16 Coplanarity laser module From software version SR.605.xx 07/2008 EN Edition
310
6.16.5 Position of the coplanarity laser module on the D1 machine
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Fig. 6.16 - 4 Position of the coplanarity laser module on the D1 machine
(1) Coplanarity laser module
6.16.6 LED displays on the controller
The statuses of the coplanarity module are indicated by LEDs. The LEDs can be found at the bot-
tom of the controller (see item 6 in Fig. 6.16 - 5
, page 311).
LED state Status display
Green Test object in measuring range
Yellow Middle of measuring range
Red
Outside the measuring range,
with low reflection
LED Off Laser switched off
LED Power Status display
LED lights up Supply voltage present