SIPLACE 80 F4_EN - 第8页

7 Description The highly developed Pick & Pl ace or Fine Pitch placeme nt head op- erates on the Pick & Place princi- ple. It is suitab le for picking up par- ticularly sophisti cated or large components as well …

Revolver Head Function

Component Pick-Up/

Placement

Segment

Removal

Point

Turning to

the Placement

Position

Component

Vision

Description

The 12-nozzle revolver head oper-

ates on the Collect & Place princi-

ple. In contrast to classic shooters

the 12 vacuum nozzles of the

SIPLACE revolver heads rotate

around a horizontal axis. Due to

the small diameter the centrifugal

forces which develop are much

lower than with chipshooters. The

results are reliable placement and

the same cycle time for all compo-

nents.

The components are picked up

and placed gently and reliably with

the aid of vacuum or blast air. A

number of vacuum tests indicate

whether the component was

picked up and set down correctly.

Different control and self-learning

functions further enhance the reli-

ability of the system:

The optical position recognition

unit for the feeder ascertains

the exact position of the com-

ponent table.

A camera on the revolver head

(component vision module) de-

termines the exact position of

each component on the nozzle.

Offsets are corrected prior to

placement and taken into ac-

count during the subsequent

component pick-up process.

In addition, the geometric form

(package form) is also checked.

If the actual geometric dimen-

sions of the component do not

correspond to those pro-

grammed, it is not placed.

Irregular PCB surfaces are eve-

ned out by the sensor stop ope-

ration while the nozzle is being

lowered and they are also

“learned”.

Components recognized as

faulty are ejected by blast air

and automatically repaired in a

repair cycle.

Placement Heads:

12-Nozzle Revolver Head for High-Speed

Technical Data

Component spectrum*

0402 to 18.7 x 18.7 mm,

incl. BGA, µBGA, Flip Chip, QFP,

TSOP, PLCC, SO to SO32, DRAM

Height*

min. lead pitch

min. dimensions

max. dimensions

6 mm

0.5 mm

0.5 x 1.0 mm

18.7 x 18.7 mm

Weight* 2 g

Stroke of Z-axis max. 16 mm

Programmable placement force 2.4 to 5.0 N

Benchmark placement rate 10,000 cph

Angle accuracy

± 0.525° / 3 σ

± 0.70° / 4 σ

± 1.05° / 6 σ

Placement accuracy

± 67.5 µm/ 3 σ

± 90 µm/ 4 σ

± 135 µm/ 6 σ

* Up to these limit values a uniformly reliably, speedy and accurate placement

guaranteed over the

entire component range. Furthermore, components can be placed if they satisfy specific basic

conditions (For other components please contact Siemens).

Description

The highly developed Pick & Place

or Fine Pitch placement head op-

erates on the Pick & Place princi-

ple. It is suitable for picking up par-

ticularly sophisticated or large

components as well as non-

standard models. High-resolution,

intelligent vision modules (Fine

Pitch and Flip Chip component vi-

sion modules) ensure that the

components are in satisfactory

condition that the placement posi-

tion is correct.

The sleeve with nozzle is the heart

of the Pick & Place head. The

sleeve is mounted such that it is

movable in the longitudinal (Z-axis)

and rotational direction (D-axis).

Each of the two axis are driven by

a DC motor; positioning is done by

incremental encoder. Thanks to a

high-resolution glass incremental

panel on the sleeve, the Pick &

Place head has an outstanding

high rotational position accuracy.

The rotating movement is trans-

mitted directly from D-axis motor

to the driving plate on the sleeve

via frictional wheel.

Placement Heads:

Pick & Place Head for High End / High Accuracy IC Placement

Technical Data

Component range

max. height

min. lead pitch

max. dimensions

max. weight

PCB-height ≤ 13.5 mm (20 mm* opti-

on) – thickness (PCB) – arching (PCB)

0.4 mm (standard), 0.25 mm (option)

32 x 32 mm (single measurement)

55 x 55 mm (multiple measurement)

25 g

Programmable placement force 1 to 10 N

Nozzles types

5 standard nozzles including

Flip Chip nozzle with nozzle changer

Component centering

Fine Pitch component vision module

(standard)

Flip Chip component vision module

(option)

Benchmark placement rate 1,800 cph

Resolution of the D-axis 0.005°

Angle accuracy

± 0.052° / 3 σ

± 0.07° / 4 σ

± 0.105° / 6 σ

Placement accuracy

± 37.5 µm/ 3 σ

± 50 µm/ 4 σ

± 75 µm/ 6 σ

* max. PCB-height is depending on the feeder (please contact Siemens service)

Pick & Place Head

PCB Transport

Direction

Description

r r

r H

A nozzle changer for the revolver

head can be installed to the left of

the PCB conveyor with no loss of

feeder locations. It will change the

set-up of the placement head

quickly and reliably for the specific

nozzle configuration valid for a job.

Damaged or faulty nozzles can be

exchanged via the menu function.

k k

k &

& &

& P

SIPLACE 80 F

is equipped with a

nozzle changer for the Pick & Place

head. As standard, it is fitted with

one magazine. This can simultane-

ously hold 4 standard nozzles and

one special nozzle. The changer is

mounted on the right-hand side of

the PCB conveyor with no loss in

feeder locations. As an option, 3

additional nozzle magazines can be

installed for 5 nozzles each. Noz-

zles are exchanged automatically

during the placement sequence.

Placement Heads:

Nozzle Changer

Technical Data

12-Nozzle Revolver Head

Type of nozzle

All standard nozzles of nozzle series 6xx

and 7xx

(special nozzles must be tested individually)

Capacity

7 magazines for each 12 nozzles of one

nozzle series

Nozzle changing times About 2 s per nozzle

Pick & Place Head

Type of nozzle

All standard nozzles of nozzle series 4xx

(special nozzles must be tested individually)

Capacity

1 to 4 magazines each with 5 nozzles of

one nozzle series

Nozzle changing times About 2 s per nozzle

Position of Nozzle Changers

Waffle Pack Changer (Option)

Component Feeders

for Revolver Head /

Pick & Place Head

Component Feeders

for Revolver Head /

Pick & Place Head

PCB

Nozzle Changer for the

12-Nozzle Revolver Head Nozzle Changer Pick & Place Head for 5 Nozzles

Each with 7 Magazines for 12 Nozzles (Option) (Option: + 3 Nozzle Changers Each for 5 Nozzles