D4操作手册.pdf - 第9页

9 Placement Head Technical Data 12-nozzle Collect & Place head (standard - comp onent camer a) 12-nozzle Collect & Pl ace head (high-resolution com pone nt ca mera) Component r ange a a) Please note that the r an…

Placement Head

12-Nozzle Collect & Place Head for High-

Speed Placement

Description

The 12-nozzle Collect & Place

head works on the Collect &

Place principle. This means

that, within each cycle,

twelve components are

picked up by the placement

head, are optically centered

on the way to the board and

are rotated into the required

placement angle. Lastly, the

air kiss sets down the compo-

nent gently and accurately

on the board.

Checking and self-learning

functions

The reliability of the Collect &

Place head is increased by

various checking and self-

learning functions.

• For example, vacuum

checks at the nozzles indi-

cate whether the compo-

nent was picked up

correctly.

•A digital component cam-

era on the placement head

determines the precise po-

sition of each component

at the nozzle. Any devia-

tions from the required

pick-up position are cor-

rected before placement

takes place.

• The package form is also

checked and the compo-

nent is not placed if the

geometric data thus deter-

mined differs from the

programmed data.

The vertical axis for picking

up and placing the compo-

nent works in sensor stop

mode, in which differences

in height during pick-up and

any unevenness of the PCB

surface are compensated

during placement.

In addition to the vacuum

check, an optional compo-

nent sensor may be used to

check for the presence of a

component at the nozzle.

The use of a component sen-

sor is recommended, particu-

larly when placing small

components, such as 0201.

High-resolution camera

option

The high-resolution compo-

nent camera allows the

12-nozzle Collect & Place

head to optically center and

place component sizes rang-

ing from 01005

, 0201 to

18.7 x 18.7 mm².

1) 01005 optional, from

April 2007

Component vision module

DP axis:

Rotate component

to placement angle

Pull off or

insert sleeve

Z axis

Pick up or

place component

DR axis:

Rotate star

Reject

component

Placement Head

Technical Data

12-nozzle

Collect & Place head

(standard-

component camera)

12-nozzle

Collect & Place head

(high-resolution

component camera)

Component range

a) Please note that the range of components that can be placed is also affected by the pad geometry,

customer-specific standards, component packaging tolerances and component tolerances.

0402 to PLCC44, BGA, μBGA,

flip-chip, TSOP, QFP, SO to

SO32, DRAM

01005

, 0201

to fip-cip,

bare die, PLCC44, BGA, μBGA,

TSOP, QFP, SO to SO32,

DRAM

b) optional from April 2007

c) with 0201 package

Component specifications

max. height

min. lead pitch

min. ball pitch

min. ball diameter

min. dimensions

max. dimensions

max. weight

6 mm

0.5 mm

0.45 mm

0.25 mm

0.5 x 0.5 mm²

18.7 x 18.7 mm²

2 g

6 mm

0.3 mm

0.25 mm

0.14 mm

0.3 x 0.3 mm²

18.7 x 18.7 mm²

2 g

Programmable

set-down force

2.4 N - 5.0 N 2.4 N - 5.0 N

Nozzle types 9 xx 9 xx

X/Y accuracy ± 60 μm/3 σ

± 80 μm/4 σ

± 60 μm/3 σ

± 80 μm/4 σ

Angular accuracy ± 0.6° / 3 σ

± 0.8° / 4 σ

± 0.6° / 3 σ

± 0.8° / 4 σ

Nozzle Changers

Technical Data

Description

Nozzle changers increase the

flexibility of placement heads

when processing different

components. The nozzle con-

figuration can be quickly

modified for new placement

jobs. Exactly defined posi-

tions and the perfect seating

of the nozzle in the garage

guarantee minimal radial

eccentricity at the placement

head.

Technical data

Dimensions (length x width x height) 472.5 x 63 x 77 mm³

Number of magazines min. 1 / max. 5, each with 12 nozzle holders

Nozzle types 9 xx

Nozzle change time approx. 2s per nozzle

Compressed air connection 0.51 MPa ± 0.01 MPa (5.1 bar ± 0.1 bar)

Nozzle changer for the

12-nozzle Collect & Place head

(5 magazines → 60 nozzle holders in total)

Magazine for 12

type 9xx nozzles

NC12