00196044-05 - sg x und x4i fse_en - 第302页

Collect, Pick and Place Head (CPP) Overview Special Features of CPP Head S tudent Guide (FSE) SI PL ACE X Series and X4I Collect, Pick and Place Head (CPP) Edition 01/2 009 EN 302 8.2.5 Special Feat ures of CPP Head  Th…

Collect, Pick and Place Head (CPP)

Technical Data Overview

Student Guide (FSE) SIPLACE X Series and X4I

Edition 01/2009 EN Collect, Pick and Place Head (CPP)

301

8.2.4 Technical Data

The component spectrum depends on the component camera fitted and the resulting placement mode.

Component

spectrum

Component

camera

SST28

Component

camera

SST29

Component

camera

SST38

FC camera

SST25

IC Camera

SST33

IC camera

SST36

C&P mode

(min.

component)

0402 0201 01005 01005 (0603) (0603)

C&P mode

(max.

component)

18.7x18.7 mm 27x27 mm /

(µBGA to

18x18 mm)

16x16 mm

P&P mode

(max.

component)

16x16 mm 50x40 mm 32x32 mm

Mixed mode

(max.

component)

16x16 mm 32x32 mm 32x32 mm

Component height (CPP_H) max. 8.5 mm C&P mode

max. 8.5-11.5 mm in P&P and mixed mode

Component height (CPP_L) max. 6 mm, at max. placement performance

Placement accuracy +/- 50 µm (4 sigma) in C&P mode with SST38

+/- 55 µm (4 sigma) in C&P mode with SST29

+/- 60 µm (4 sigma) in C&P mode with SST28

+/- 45 µm (4 sigma) in P&P mode with stationary cameras

Put down contact force 1-3 N ±0.5 N (current sensor)

2.2 N ±0.5 N (light barrier)

3-10 N ±15 % (current sensor)

Weight of head approx. 5.3 kg with component camera

Component weight: max. 4 g in C&P mode, mixed mode

max. 8 g in P&P mode

Component cameras SST28 (min. component 0402 to 18.7x18.7)

SST29 (0201 to 27x27, standard)

SST38 (01005 to 16x16)

Collect, Pick and Place Head (CPP)

Overview Special Features of CPP Head

Student Guide (FSE) SIPLACE X Series and X4I

Collect, Pick and Place Head (CPP) Edition 01/2009 EN

302

8.2.5 Special Features of CPP Head

 There are various placement modes: C&P mode, P&P mode and mixed mode.

 Symmetrical head design: The head can be fitted on the left or right.

 Component spectrum for component 01005 – 50x40 mm

Component height max. 11.5 mm

 The holding circuit has one venturi nozzle for each segment.

→ No more interference between the segments.

 Each segment has its own valve. Each segment can therefore be switched off separately.

→ This reduces the air consumption.

 Each segment has its own motor with incremental measuring system.

→ The segments can be rotated independently of one another.

 The light barrier down is integrated into each segment.

→ This leads to a high placement reliability. There is no need to adjust the light barrier down. This

design is more robust, since a movable cable is not required.

 A digital pressure control valve enables faster switching times between vacuum and air blast.

 The component sensors in the pickup&place position are more robust. The prisms have mechanical

protection.

→ This leads to a high placement reliability.

 Robust nozzle interface and nozzle magazine

 Nozzle types 20xx and 28xx with corresponding magazines

8.2.6 Principle of CPP Head

 The CPP head functions according to the Collect&Place principle, like the C&P12 head, whereby the

additional operating modes Pick&Place and mixed mode help to extend the component spectrum.

 Each segment is equipped with its own DP drive and an incremental measuring system, to allow

angle adjustment while the star is revolving.

 The power and data are transferred from the stationary part of the head via a contact free ED

transformer to the control board (Single Core Solution - SCS) for the DP drives.

 In addition, each DP drive has a light barrier Z down. Together with the secondary part of the linear

motor (Z axis), there is no cable which is moved with the Z movement.

 The so/called valve terminal is used to switch the supply pressure on and off for each segment.

 In the pickup and placement position, the Z axis moves with the complete DP drive unit upwards or

downwards.

 In the pickup cycle, the vacuum is increased by the holding circuit, using a pressure control valve.

During placement, the vacuum is eliminated by the holding circuit, with an air blast, and the

components are blown off.

 In the pickup/placement position, the standard component sensor is used to check the presence and/

or height of the components on the nozzle, both before and after pickup/placement.

Collect, Pick and Place Head (CPP)

Overview of Parts Overview

Student Guide (FSE) SIPLACE X Series and X4I

Edition 01/2009 EN Collect, Pick and Place Head (CPP)

303

8.2.7 Overview of Parts

8.2.7.1 Front plate

8.2.7.2 Pressure control valve (digital)

Legend

1. Front plate

2. Return cylinder

3. Z axis with jaws and measuring system

4. Raceway

5. Fixture for pressure control valve

Front plate

The front plate of the CPP head is fixed to the head

housing with four screws and needs to be

removed as a whole unit for service purposes.

ATTENTION:

Do not dismantle any of the

attachments from the front plate, as all

attachments are coordinated with one

another and require special settings.

Legend

1. Energy and data supply

2. Compressed air connection

3. Vacuum/air blast output for pickup/placement

circuit

4. Discharged air, for cooling the X motor

5. Fixture for fastening the pressure control valve

to the front plate

 The pressure control valve supplies the

pickup/placement circuit with vacuum during

the pickup process and switches over to air

blast during placement.

 The digital pressure control valve can be

adjusted infinitely between max. vacuum and

max. air blast in the pickup/place circuit.

 The complete press control valve can be

replaced during service work.