00194614-08 Trainingsdoku. SG X-Serie_X4i SW70x (AL2)_EN - 第273页
Collect, Pick and Place Head (CPP) Overview Overview of Parts 273 Student Guide SIPLACE X-Serie and X4I SW70x (AL2) Holding Circuit 8.2.7.6 Holding Circuit Screwed Jo int with Collector Ring (for CPP Head s from Versi on…
Collect, Pick and Place Head (CPP)
Overview of Parts Overview
Student Guide SIPLACE X-Serie and X4I SW70x (AL2) 272
Component Sensor Functions
Component Sensor Functions
Pickup Process:
When the Z axis moves downwards, the nozzle interrupts the laser beam. At this exact moment, this Z
axis position is read out and compared to the reference value, from the height reference run, or from this
segment after placement. This determines whether there is still a component on the nozzle or not. If the
Z axis position indicates that there is a component on the nozzle, the Z axis will be immediately stopped.
An error message will appear or the component will be rejected and added to the repair cycle as not
placed.
When the Z axis moves upwards again, the laser beam is released and the Z position read out. Based
on the Z position during downwards movement, the system can now determine the presence and height
of a component.
Placement Process:
During the placement process, the system checks whether the component is at the nozzle (Z downwards
movement) or whether placement has been performed on the component (Z upwards movement). As a
precaution, these Z positions are compared to those from the pickup procedure.
This ensures maximum pickup and placement reliability.
Legend
1. Downwards (top diagram) or upwards (bottom
diagram) movement
2. Nozzle
3. Component
4. Reading out the Z position, if the laser beam is
interrupted (top diagram) or has been released again
(bottom diagram).
The component sensor signal is directly linked to the axis
controller (measurement system) of the Z axis. This
enables you to read out the Z position during upwards
and downwards movement.
Collect, Pick and Place Head (CPP)
Overview Overview of Parts
273 Student Guide SIPLACE X-Serie and X4I SW70x (AL2)
Holding Circuit
8.2.7.6 Holding Circuit
Screwed Joint with Collector Ring (for CPP Heads from Version 05)
Screwed Joint with Collector Ring (for CPP Heads from Version 05)
▪ The screwed joint is fixed to the holding circuit. The screwed joint is used to ensure the compressed
air supply to the terminal board and to the holding circuit.
▪ In addition, the screwed joint is fitted with a collector ring which serves as potential equalization
between the stationary and the rotating part of the placement head.
Legend
1. Compressed air inlet 4.5 bar
2. Two part silencer for exhaust air from the venturi
nozzles and fixture for the silencer (6)
3. Casing with venturi nozzles
4. Fixture of holding circuit to star frame
5. Inner drillings: Venturi nozzle inlet (compressed air)
Outer drillings: Vacuum to the segments.
The holding circuit (4) is fixed with six screws to the star
frame. It consists of a venturi block with 12 small venturi
nozzles (5), a silencer (2) and a compressed air
connection (1).
The compressed air inlet feeds the compressed air (min.
4.5 bar) via the valves to the venturi nozzles. Each
venturi nozzle supplies one segment with vacuum in the
hold circuit.
If a segment is in the pickup/placement circuit, the
holding circuit vacuum is increased by the pressure
control valve (for pickup) or eliminated via air blast (for
placement).
Legend
1. Compressed air inlet 4.5 bar
2. Collector ring cover
3. Grounding connection to the front plate
4. Silencer
5. Holding circuit
Collect, Pick and Place Head (CPP)
Overview of Parts Overview
Student Guide SIPLACE X-Serie and X4I SW70x (AL2) 274
Star
8.2.7.7 Star
The star consists of the star frame, on which the 12 DP drives are located, the control board (Single Core
Solution), the valve terminal and the E/D transformer.
The holding circuit is in the center of the star.
The complete unit is fixed to the rotor of the star motor.
Star Frame
8.2.7.8 Star Frame
Legend
1. Star frame
2. Single Core Solution
3. Valve terminal
4. E/D transformer (CPP heads up to version 04)
5. DP drives
6. Holding circuit in the middle of the star
7. Fixture on rotor of star motor
Legend
1. Star frame
2. Star frame plate
3. Hose to DP drive
4. Back of the star frame
5. Front of the star frame
6. DP drive
The star frame plate is fixed directly to the rotor of the star
motor.
The valve terminal and the E/D transformer are fixed to
the back of the star frame.
The twelve DP drives are fixed to the front and the
holding circuit with control unit (SCS) is fixed to the
center.
The vacuum or air blast is fed via the holding circuit
through the star frame plate to the individual DP drives
(through a hose).