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3 Technical data User Manual SIPLACE HS-60 3.10 Overview o f the modules - PCB conveyor Software v ersion SR.503.xx 07/2003 US Edition 96 3.10.2 Single conveyor 3.10.2.1 S tructure 3 Fig. 3.10 - 1 S tructure of the PC B …
User Manual SIPLACE HS-60 3 Technical data
Software version SR.503.xx 07/2003 US Edition 3.10 Overview of the modules - PCB conveyor
95
3.10 Overview of the modules - PCB conveyor
3.10.1 Description
The placement machine is supplied with a single conveyor as standard. A dual conveyor is avail-
able as an option. The left or the right side of the PCB conveyor can be used as the stationary
side, as required.
For placement, the PCB is clamped from below. The distance between the top of the PCB and the
placement head thus remains unchanged for each PCB, and is no longer dependent on the thick-
ness of the PCB. The placement rate is thus also independent of the PCB thickness. The PCB
fiducial centering can also be optimized. Since the distance between the PCB surface and the
PCB camera remains the same, the PCB camera is always focussed on the PCB surface with the
same sharpness. The PCB fiducial contours are optimally mapped on the CCD chip of the PCB
camera.
The width of the circuit board conveyor is set and monitored by an integral control circuit. It can
be selected by calling up the program. The control circuit then actuates the stepping motors until
the desired width is reached. The width adjustment is therefore independent of other machine
components. 3
The transport height can be modified, thus allowing the machines to be integrated into lines with
a transport height of 830, 900, 930 or 950 mm. Communication between the PCB conveyors of
the individual systems is via the SIEMENS or SMEMA interface, as desired. The fixed transport
side can be located on the left or right for both the dual conveyor and the single conveyor. With
this conveyor, the fixed side can be easily switched from right to left and vice versa.
The circuit board conveyor is monitored and controlled with optical sensors. If the board has
reached placement area and passed the light barrier, it is braked. A laser light barrier determines
the position of the board. As soon as the circuit board has reached its target position, the con-
veyor belt is stopped and the board is clamped from below. 3
3 Technical data User Manual SIPLACE HS-60
3.10 Overview of the modules - PCB conveyor Software version SR.503.xx 07/2003 US Edition
96
3.10.2 Single conveyor
3.10.2.1 Structure
3
Fig. 3.10 - 1 Structure of the PCB conveyor - single conveyor, stationary side on the right
3
(1) Input area
(2) Processing area 1
(3) Intermediate area
(4) Processing area 2
(5) Output area
(6) Lifting table (processing area 1)
(7) Lifting table (processing area 2)
User Manual SIPLACE HS-60 3 Technical data
Software version SR.503.xx 07/2003 US Edition 3.10 Overview of the modules - PCB conveyor
97
3.10.2.2 Technical data
3
Fixed conveyor side Right (standard), left (optional)
Maximum component height 6 mm
PCB format 50 mm x 50 mm up to 368 mm x 460 mm (standard)
50 mm x 50 mm up to 368 mm x 508 mm (available upon
request)
Long board: PCB longer than 368 mm (option)
50 mm x 110 mm up to 610 mm x 460 mm
50 mm x 110 mm up to 610 mm x 508 mm (available upon
request)
PCB thickness 0.5 mm to 4.5 mm
Max. PCB warpage Up: 4.5 mm - PCB thickness
On bottom: 0.3 mm + PCB thickness
Clearance on PCB underside 25 mm (standard), max. 40 mm (option)
PCB transport height 830 mm ± 15 mm (standard)
900 mm ± 15 mm (optional)
930 mm ± 15 mm (optional)
950 mm ± 15 mm (SMEMA: optional)
Type of interface Siemens (standard), (SMEMA optional)
Component-free PCB handling edge 3 mm
PCB changeover time 2.5 s
Bad fiducial detection Possible
Automatic width adjustment Possible