00194614-08 Trainingsdoku. SG X-Serie_X4i SW70x (AL2)_EN.pdf - 第301页

Collect, Pick and Place Head (CPP) Pickup and Placement Cycle for CPP S tandard Mode - Placement: Z Axis Down 301 Student Guide SIPLACE X-Serie and X4I SW70x (AL2) Standard Mode - Placement: Z Axis D own 8.4.13 Standard …

Collect, Pick and Place Head (CPP)

Detailed Standard Pickup Procedure: Z Axis Down Pickup and Placement Cycle for CPP

Student Guide SIPLACE X-Serie and X4I SW70x (AL2) 300

Detailed Standard Pickup Procedure: Z Axis Down

8.4.11 Detailed Standard Pickup Procedure: Z Axis Down

▪ Enables vacuum query: segment open threshold ? Yes

Component sensor switches due to Z axis movement:

▪ Measurement value for nozzle length "empty"

Axis controller:

▪ Enable "light barrier down" signal.

LB down switches:

▪ End signal Z axis positioning down

▪ Z axis measurement value for pickup height optimization

Detailed Standard Pickup Procedure: Z Axis Up

8.4.12 Detailed Standard Pickup Procedure: Z Axis Up

Star position 0°: detailed pickup sequence - Z axis down

Start gantry axes to the pick up position of next feeder.

NOTICE! The vacuum for the holding circuit of

each segment is switched on via the valve terminal, just

before pickup is performed. The vacuum is used for

picking up components and mainly comes from the

pressure control valve. The holding circuit vacuum is only

used to hold the component on the nozzle during the star

rotation.

▪ Start signal for X and Y axes to move to next feeder.

End signal X, Y axes:

▪ X/Y end position signals available.

Z axis starts:

▪ Z axis starts positioning downwards

End position signal for star axis

Detailed pickup procedure: Z axis up

LB down switches:

▪ Vacuum Threshold comp. picked reached? Yes

Z axis starts:

▪ Z axis starts positioning upwards

Component sensor switches due to Z axis movement:

▪ Z axis position value; nozzle length + comp.height

measurement threshold reached? Yes

Z axis position in safety area:

▪ reset light barrier state,

▪ X, Y gantry axes start

▪ start component feeder (communication to feeder

table)

Vacuum query:

▪ Vacuum threshold for holding circuit reached? Yes

▪ Star axis starts.

Collect, Pick and Place Head (CPP)

Pickup and Placement Cycle for CPP Standard Mode - Placement: Z Axis Down

301 Student Guide SIPLACE X-Serie and X4I SW70x (AL2)

Standard Mode - Placement: Z Axis D own

8.4.13 Standard Mode - Placement: Z Axis Down

Axis controller:

▪ Enable signal for "light barrier down" function

LB down switches:

▪ End signal Z axis positioning downwards;

▪ Digital pressure control valve: switches "Air blast ON"

▪ Pickup/placement position; air blast threshold "place component" reached? Yes

NOTICE

Since the travel paths for each axis can be calculated and are therefore known, the next action

(e.g. starting the Z axis) is started via position flags. These are sent by the predecessor action

(e.g. star axis). This enables the Z axis to start moving 10 ms earlier (depending on the

definition). It no longer needs to wait for the end position signal from the star axis. The end

position signal is therefore no longer in use.

Detailed component placement procedure: Z Axis Down

In this mode (light barrier down) the placement force at

the placement head is around 2N.

End position signal for X and Y axes--> Z axis starts:

▪ Positioning of Z axis downwards

▪ Component sensor checks component. Z axis

measurement value - nozzle length "with component"

- threshold reached? Yes

End position signal for star axis:

▪ Performsing vacuum test "before placement".

"Vacuum closed" threshold reached? YES to

determine whether the component is held by holding

force on the nozzle.

Collect, Pick and Place Head (CPP)

Standard Mode - Placement: Z Axis Up Settings on the CPP Head

Student Guide SIPLACE X-Serie and X4I SW70x (AL2) 302

Standard Mode - Placement: Z Axis U p

8.4.14 Standard Mode - Placement: Z Axis Up

Optical Nozzle Query

8.4.15 Optical Nozzle Query

▪ After the reference run, the gantries move into the wait position and performs the first nozzle

scanning. During the production, a nozzle scanning run is performed after 350 head cycles (can be

set by SIPLACE service if required) and after the completion of the board currently processed. This

ensures that the nozzle quality is continually checked during the production process:

– All nozzles listed in the scan parameters of the station database will be measured by the

component camera.

– If there is any deviation from the defined size, shape or brightness, the machine will show the

message: Nozzle worn down or contaminated.

▪ Tiny nozzles may touch the solder paste or the glue because of component shift and the minimum

component height.

▪ The number of components per segment (number of head cycles), after the next nozzle query has

been performed, should be adjusted to the customer's process requirements. This check is always

performed after completing PCB processing.

Settings on t he CPP Head

8.5 Settings on the CPP Head

Board D escriptio ns

8.5.1 Board Descriptions