00196044-05 - sg x und x4i fse_en.pdf - 第79页

Overview C&P20A Head Overview of Components S tudent Guide (FSE) SIPL ACE X Series and X4I Edition 01/2009 EN Overview 79 Star station 12:  Vacuum measurement for h olding circuit  By rotating the star axis, the va…

Overview

Overview of Components C&P20A Head

Student Guide (FSE) SIPLACE X Series and X4I

Overview Edition 01/2009 EN

3.2.9.1 Description

The C&P20A head works according to the Collect&Place principle (C&P), meaning that twenty

components are picked from the feeder modules (X feeders only) in one cycle. The component sensor

checks the pickup/place positions, to see whether a component has been taken by the nozzle or placed

on a board. On the way to the placement position, the components are rotated into the correct placement

position and optically centered. Before placement is performed, the angle and X/Y position correction,

determined by the Vision system, is applied. The X/Y position correction is calculated into the placement

position, while the angle correction is applied separately to each segment. This is possible as each

segment can be rotated independently of the star position. The components are then carefully and

accurately placed down on the board, with an air blast.

The component camera is still integrated into the C&P20A head. This saves additional travel to the

external centering cameras.

Each segment has its own DP drive for rotating the components into the correct position. The segments

are therefore no longer rotated into the correct angle in one single star position but can now be rotated

separately from one another.

Each segment has its own vacuum generator.

The Z drive for the segments is realized via a linear motor with linear position measuring system, which

makes it highly accurate. In the pickup/place position, the Z axis moves the segments up or down

(vertical direction).

3.2.9.2 Overview of Functions for Star Stations 1 - 20

Star station 1:

 Component pickup, placement or rejection

 Component sensor: Checks whether component is present after pickup and before placement.

 Component sensor: Checks whether no component is present after pickup and before placement.

 Vacuum/air blast measurement for pickup/placement circuit

3-25: Overview of functions for star stations 1 - 20

Legend

 1 to 20: star stations 1 to 20

 A : Vacuum measurement holding circuit

 B : Measurement of pickup/place circuit

Overview

C&P20A Head Overview of Components

Student Guide (FSE) SIPLACE X Series and X4I

Edition 01/2009 EN Overview

Star station 12:

 Vacuum measurement for holding circuit

 By rotating the star axis, the vacuum value can be measured at each segment.

Star station 11:

 Optical measurement of components

Star station 2 - 10 and 12 - 20

 In these star stations, the component at the segment can be rotated into the correct position.

 In star stations 2 - 10, the component is rotated into the placement position.

 In star stations 12 - 20, angular correction is performed after optical measurement.

 Rotation to the correct angle position can be performed at any of the star stations, except 1 and 11.

3.2.9.3 Nozzle Changer for C&P20 Head

The nozzle changer consists of at least six and up to twelve magazines, each of which has twelve nozzle

garages. The magazines are seated on a support. Each magazine is fixed with the help of a snap

fastener and can be released with a lever.

Each garage can be configured with different nozzle types.

Head Modularity Note

3-26: Nozzle changer and nozzle magazines

Legend

1. Calibration fiducials

2. Nozzle garage

3. Unlocking lever

4. Magazine support

5. Magazines

6. LED green (magazine query)

7. Changeover table side

Between changeover table and 1st row. The

nozzle reject bin is located on the right, next to

the 1st row.

Optionally, a nozzle changer can be installed for

the placement heads. This enables the nozzle

configuration to be changed quickly, thus allowing

the Collect&Place head to be quickly adapted to

the needs of the placement process.

NOTE:

The new nozzle changer carriers are identical for the C&P20A and CPP heads. This means that

you only need to change the magazines for head modularity.

Overview

Overview of Components Twin Head

Student Guide (FSE) SIPLACE X Series and X4I

Overview Edition 01/2009 EN

3.2.10 Twin Head

3.2.10.1 Description

3-27: Twin Head

Legend

1. Module 1

2. Module 2, rotate by 180 ° compared to module

3. Main board on modul 1 and modul 2

4. D Axis

5. Linear motorZ Axis

6. Z axis incremental measurement system

The Twin head consists of two P&P heads of the

same model, which work according to the

Pick&Place principle. The second P&P head is

installed on the gantry, at a rotation of 180

degrees. One component after another can be

picked up per P&P, from the feeder module and be

optically centered by the stationary camera. On

the way to the placement position, the

components are rotated into the correct position.

They are then carefully positioned onto the board,

with great precision and with the help of a

regulated air blast and preset force.

Type 5xx nozzles are used for the Twin head.

Type 4xx nozzles for the P&P head and type 8xx

and 9xx nozzles for the C&P heads can be used

with an adapter.