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9 C&P Placement Heads 9.2 Placement Procedure 9.2.5 Checking the Nozzle Length for Com ponent Recognition 158 Student Guide SIPLACE D-Series (FSE) 9.2.5 9 . 2 . 5 C h e c k in g t h e N o z z le L e n g t h f o r C o…

9 C&P Placement Heads

9.2.4 Preparing Nozzle 1 - Moving to Pickup Angle (0° or 90°) 9.2 Placement Procedure

Student Guide SIPLACE D-Series (FSE) 157

9.2.4

9.2.4 Preparing Nozzle 1 - Moving to Pickup Angle (0°or90°)

Preparing Nozzle 1 - Moving to Pickup Angle (0° or 90°)

Feinzentrierschritt zur Markenzentrierung und Markenpo

sitionsbestimmung

The centered fiducial now defines the actual position of

the board.

▪ The camera takes a shot of the 2nd fiducial and the

Vision system calculates the center of the image.

▪ A second calculation detects any deviation between

the target fiducial position and the position actually

determined.

▪ All PCB fiducials are optically centered using this

method.

▪ This data is then sent to the machine controller.

▪ The corrected values are then used for the X/Y and

angle positions of the board.

▪ The gantry axes now move the placement head to the

first pickup position.

NOTICE

SIPLACE Vision or synthetic fiducials

If synthetic fiducials are used, this does not change the procedure described; although inkspot

recognition is performed after fiducial recognition.

Rotating nozzle 1 to pickup angle (0° or 90°)

NOTICE! This step is only performed indepen-

dently before the very first pickup cycle.

▪ The star axis rotates to 240°. Nozzle 1 is now in the

DP station.

▪ The DP station swivels in and the DP axis control sys-

tem rotates the nozzle to its pickup angle of 0° or 90°

(default pickup angle).

▪ As soon as the nozzle reaches its position, an end

position signal is emitted and the DP station swivels

back.

The other nozzles on the head are then moved into their

pickup angles by further rotation of the star.

9 C&P Placement Heads

9.2 Placement Procedure 9.2.5 Checking the Nozzle Length for Component Recognition

158 Student Guide SIPLACE D-Series (FSE)

9.2.5

9.2.5 Checking the Nozzle Length for Component Recognition

Checking the Nozzle Length for Component Recognition

9.2.6

9.2.6 NOTE:

NOTE:

9.2.7

9.2.7 Detailed Rotation of DP Station 1.Swivel In

Detailed Rotation of DP Station 1. Swivel In

Checking the nozzle length "Component recognition be

fore placement by the component sensor"

NOTICE! This step is only performed indepen-

dently before the very first pickup cycle.

Measurement by the component sensor (optional) at ap-

prox. 315°:

▪ The component sensor measures the length of the

empty nozzle*. This measured length before pickup is

compared to the reference length of the nozzle.

▪ If a difference of -0.15 mm or +0.1 mm is found, the

gantry axes will move the placement head into the

service position for replacement of the nozzle.

▪ Measurement is performed "on the fly", during star

movement.

* A component which is to use this component sensor,

needs to be picked up for the segment concerned (com-

ponent presence check or height check with component

sensor).

All other "preconditions" also need to be fulfilled:

Installation/configuration of the option for this gantry and

the appropriate nozzle length.

NOTICE

You should already know the C&P6/12 placement sequence and the individual steps which run

parallel to this. We will therefore only explain the functional details of these individual steps.

Detailed rotation of DP station, 1. Swivel in

▪ Diagram 1 shows the initial position (state after refer-

ence run).

▪ From the initial position, the stepping motor rotates by

90° for swivel-in.

▪ The DP station swivels in and contacts the sleeve (in-

cremental disk).

▪ The stepping motor is monitored by the light barrier

on the cam disk.

▪ Diagram 2 shows the status after swiveling in.

▪ This is the start command for the DP axis drive.

9 C&P Placement Heads

9.2.8 Positioning into Pickup Angle 9.2 Placement Procedure

Student Guide SIPLACE D-Series (FSE) 159

9.2.8

9.2.8 Positioning into Pickup Angle

Positioning into Pickup Angle

9.2.9

9.2.9 Positioning into Placement Angle

Positioning into Placement Angle

Detailed rotation of DP station, positioning into pickup an

gle

▪ The DP axis positions the segment to the relevant

zero pulse and checks the signal level at a distance

of 3 digits.

▪ An end position signal is emitted if the actual position

deviation is within the permitted tolerance.

▪ There is no difference between the 0° and 180° or 90°

and 90° pickup angle.

Detailed rotation process at DP station, positioning into

placement angle

▪ When positioning begins, the actual position of the

axis is set to 0 by setting the position counter of the

DP axis to 0.

▪ The DP drive is operated in relative positioning mode.

▪ The DP axis starts to move towards the target posi-

tion which is calculated from the station calibration

values, the line computer programming values and

the centering values of the placement procedure.

▪ An end position signal is emitted as soon as the actu-

al position deviation is within the permitted tolerance.