00194614-08 Trainingsdoku. SG X-Serie_X4i SW70x (AL2)_EN.pdf - 第238页

C&P20A Checking the Nozzle Length fo r Component Recognition Pickup and Placement Cycle for C&P20A Student Guide SIPLACE X-Serie and X4I SW70x (AL2) 238 Checking th e Nozzle Length for Component Recognit ion 7.4.…

C&P20A

Pickup and Placement Cycle for C&P20A Board Recognition - Centering the Board Fiducials

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

Board R ecognition - Centering the B oard Fiducials

7.4.4 Board Recognition - Centering the Board Fiducials

Turning Nozzles 1 to 20 to the Pick up Angle (0° or 90°)

7.4.5 Turning Nozzles 1 to 20 to the Pickup Angle (0° or 90°)

Board recognition - centering the board fiducials

The centered fiducial now defines the actual position of

the board.

▪ The camera records an image of the 2nd fiducial and

the Vision system calculates the center position of

this image.

▪ The 2nd calculation is the deviation between the

target and the calculated fiducial position.

▪ All board fiducials are optically centered with this

procedure.

▪ This data is sent to the machine controller.

▪ Corrected values are now calculated for the X,Y and

angular position of the board.

▪ The gantry axes now move the placement head to the

first pickup position.

▪ The segments in the C&P20A head are turned in

succession, from segment 1 to 20, to the required

pickup angle of 0° or 90°.

NOTICE! Each segment has its own DP drive

C&P20A

Checking the Nozzle Length for Component Recognition Pickup and Placement Cycle for C&P20A

Student Guide SIPLACE X-Serie and X4I SW70x (AL2) 238

Checking the Nozzle Length for Component Recognition

7.4.6 Checking the Nozzle Length for Component Recognition

Picking Up Component 1

7.4.7 Picking Up Component 1

The remaining nozzles now pick up the components as the star is stepped and turn these into the correct

centering angle, before they reach the component camera.

Checking the nozzle length ("component recognition by

component sensor before placement")

Component sensor measures at star pickup position:

▪ Vacuum measurement: ’Segment open’ value

▪ The component sensor measures the length of the

nozzle. The measured length before pickup is verified

with the reference length.

▪ 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" in the star

pickup/placement position.

Picking up component 1

Star position 0°

▪ Vision system: No action

▪ Pickup/placement station: Picking up component 1

▪ Z Axis Down

▪ Vacuum check for component pickup

▪ Component sensor: direct measurement after picking

up the first component (applies accordingly to all

other segments)

▪ Vacuum check after pickup: Check holding force of

the component on the nozzle.

NOTICE

All vacuum measurements during the placement process are performed in the background and

do not produce any error messages. The error messages concerning missing components etc.

are produced only by the component sensor.

C&P20A

Pickup and Placement Cycle for C&P20A Picking Up Component 10

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

Picking Up Component 10

7.4.8 Picking Up Component 10

Picking Up Component 11

7.4.9 Picking Up Component 11

Picking up component 10

Star position 162°

▪ Vision system: "Prepare SIPLACE Vision for optical

centering".

▪ Pickup/placement station: Pick up component 10

▪ A : The components previously picked up are rotated

to the placement angle.

(centering angle [0°, 90°, 180°, 270°] = placement

angle in 90° steps)

▪ Measurement of hold circuit for Segment 1 (output to

measuring sensor)

Picking up component 11

Star position 180°

▪ Vision system: Optical centering of component on

segment 1.

▪ Pickup/placement station: Picking Up Component 11

▪ A : The components previously picked up are rotated

to the placement angle. Empty nozzles are turned to

the next pickup angle.

▪ Measurement of hold circuit for segment 2