HS50_advance_level 1_20200522_221201 (1) - 第64页
06/2002 E dition Studen t Guide H S-50 Advance d I 2 Ov erview 34 2.13.2 Overview of the fu n ct ions of st ar st ations 1 - 1 2 2 F ig. 2. 13 - 2 Ov er vie w o f t he fu nc tion s of star stat ion s 1 - 12 S tar st at i…
Student Guide HS-50 Advanced I 06/2002 Edition
2 Overview
33
2.13.1 Steps when picking up and placing components
– A PCB moves into the placement area of the PCB conveyor.
– The right-hand revolver head picks up components from the feeder modules.
– The left-hand revolver head waits for the fiducial measurement.
– Once the fiducial measurement is complete, the right-hand revolver head places components
while the left-hand revolver head picks up further components.
– The right-hand revolver head picks up components, and so on.
2.13.1.1 Position and function of the individual star stations (see Fig. 2.13 - 2)
Star station 1 2
Pick-up cycle 2
The nozzle is lowered onto the component. Once the valve positioning unit has opened the vac-
uum circuit to the nozzle, the nozzle draws up the component and removes it from the feeder mod-
ule. 2
Placement cycle 2
The valve positioning unit closes the vacuum channel to the nozzle. The nozzle, together with the
component, is lowered onto the PCB that has been moved into place. A short burst of compressed
air detaches the component from the nozzle and places it on the PCB. 2
Star station 3 2
Reject cycle
The valve positioning unit closes the vacuum channel to the nozzle. Defective components are
detached from the nozzle with a short burst of compressed air and are discarded. 2
Star station 7 2
The component is optically centered. 2
Star station 9 2
Pick-up cycle 2
The nozzle is rotated to the pick-up position. 2
Placement cycle 2
The placement angle of the component is corrected or the correct placement angle of the compo-
nent is set. 2
Between star station 11 and 12 2
Check the present and / or height from the component on the nozzle.
06/2002 Edition Student Guide HS-50 Advanced I
2 Overview
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2.13.2 Overview of the functions of star stations 1 - 12
2
Fig. 2.13 - 2 Overview of the functions of star stations 1 - 12
Star station 1: pick up or place component 2
Star station 2: no function 2
Star station 3: discard component 2
Star station 4, 5 and 6: no function 2
Star station 7: optically center component 2
Star station 8: no function 2
Star station 9: rotate component 2
Star station 10: position for removing and inserting sleeves 2
Star stations 11 and 12: no function (optionally Component sensor) 2
I-XII Segment numbering 2
Student Guide HS-50 Advanced I 06/2002 Edition
2 Overview
35
2.14 Nozzle Changer
Fig. 2.14 - 1 Positoin of nozzle changer
2.14.1 Nozzle Changer magazine
Fig. 2.14 - 2 Nozzle changer magazine
Top view Nozzle changer
The nozzle changer (shown here as a pair in sector 4)
cinsists of 2X5 magazines containing nozzles of various
sizes. These nozzles can be replaced automatically depend-
ing on the placement program.
Each magazine contains twelve
identical nozzle, which means that
all twelve sleeves can be provided
with the same nozzles