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5 Vision Functions SIP LACE 80S-20/F4/F5 Us er Manual 5.1 Overview of the Vision Systems i n the SIPLACE 80S-20/F4F5 Machines 05/99 Issue from Software Version SR.405.xx 5 - 14 Line en gineer Fig. 5.1.1 1 Camera sys tems…
SIPLACE 80S-20/F4/F5 User Manual 5 Vision Functions
05/99 Issue from Software Version SR.405.xx 5.1 Overview of the Vision Systems in the SIPLACE 80S-20/F4F5 Machines
Line engineer 5 - 13
Fig. 5.1.10 Vision evaluation unit in the SIPLACE 80F
5
placement machine
5 Vision Functions SIPLACE 80S-20/F4/F5 User Manual
5.1 Overview of the Vision Systems in the SIPLACE 80S-20/F4F5 Machines 05/99 Issue from Software Version SR.405.xx
5 - 14 Line engineer
Fig. 5.1.11 Camera systems for PCB and component position recognition at the 6x revolver head
(with with component vision system for flip-chips, bare dies and standard components) of the 80F
5
machines
- Key to Fig. 5.1.11
1 Deflection mirror and component lens 2 Component camera
3 PCB camera on the underside of the gantry
The evaluation unit (ICOS MVS system) which is accommodated in the machine’s control unit (5 - 13) pro-
cesses and evaluates the signals from the PCB and component camera systems of the 6x revolver and IC
placement heads. The deviations from the nominal values are used for determining correction values which
are then used in the recalculation of the placement positions and the skew of the components to be inserted.
SIPLACE 80S-20/F4/F5 User Manual 5 Vision Functions
05/99 Issue from Software Version SR.405.xx 5.2 PCB Vision System
Line engineer 5 - 15
5.2 PCB Vision System
The PCB vision system registers the precise position of the board by surveying fiducials and then determines
the offset along the x and y axes, the skew with respect to the direction in which the boards are transported,
and also the shear of the board. The PCB vision system also registers and evaluates reject fiducials (ink
dots).
5.2.1 System Description
The PCB vision system for PCB position recognition consists of
l the optical system for PCB position recognition
Each gantry has its own PCB position recognition system (5 - 5).
PLEASE NOTE:
PCB position detection is only carried out with gantry 1.
l the vision evaluation unit
Each machine accommodates in the control unit an evaluation unit for PCB and component position recog-
nition (see Fig. 5.1.4, Fig. 5.1.7 and Fig. 5.1.10).
The optical PCB position recognition system consists of a CCD camera (a SONY XC75) with integrated imag-
ing and illuminating optics. The field of view of the board module is 5.7 mm x 5.7 mm. A search area can be
programmed by size and position within the dimensions of the field of view. The imaging lens is a special mea-
suring lens which compensates for virtually all measuring errors resulting from warping of the board. The light-
ing is only switched on while fiducials are being registered.
The vision evaluation unit (MVS) is a single-board system which conforms with the VME standard. The hard-
ware consists of:
l the MVS motherboard with vision processor and interface connections
The rear side of the board accommodates
– the plug-in connections for the VME bus and
– the high-speed communications unit (HS
3
L).
On the front side of the board are the connection sockets for
– the screen
Machine PCB camera MVS evaluation unit
80S-20 (2 gantries) 2 1
80F
4
(1 gantry)
11
80F
5
(1 gantry)
11
Tab. 5.2.1