80S-20用户手册.pdf - 第491页

SIPLACE 80S-20/F4 User Manual 11 Station extensions /Hardware Software vers ion SR.407.xx 0 1/2001 US Edit ion 11.6 Nozzle changer for the Pick & Place head 491 1 1.6 Nozzle ch anger for the Pick & Place he ad 1 …

11 Station extensions /Hardware SIPLACE 80S-20/F4 User Manual

11.5 Ceramic substrate centering Software version SR.407.xx 01/2001 US Edition

490

Fiducial structure 11

Recommendation 1

Fiducial structure Black resistive paste as the background, with conductive paste printed on it as

the fiducial.

Recommendation Background 0.75 mm larger than the fiducial on all sides.

Method of illumination Normal light

Advantage Good contrast, good sharpness;

Reference Circuit-board conductor layer

Assessment This combination gives the best results. Highly recommended.

Recommendation 2

Fiducial structure Fiducial made from circuit-board conductor material, e.g. 6119, and overprinted

with passivated glass 4330.

Method of illumination Oblique light

Advantage No additional steps required

Reference Circuit-board conductor layer

Assessment Fiducials are less sharp than for recommendation 1. Recommended.

Recommendation 3

Fiducial structure Fiducials made from circuit-board conductor layer against a free ceramic back-

ground.

Method of illumination Oblique or normal light (depending on the paste)

Advantage No additional steps required

Reference Circuit-board conductor layer

Note Fiducials are less sharp than for recommendation 2.

The fiducial image depends on the surrounding free surface. It may be neces-

sary to teach every circuit separately.

Assessment Recommended under certain conditions.

SIPLACE 80S-20/F4 User Manual 11 Station extensions /Hardware

Software version SR.407.xx 01/2001 US Edition 11.6 Nozzle changer for the Pick&Place head

491

11.6 Nozzle changer for the Pick&Place head

11.6.1 Overview

Fig. 11.6 - 1 Mounting position of the nozzle changer for the Pick&Place head

(1) Magazine for 5 nozzles

(2) Reject bin

(3) Mounting plate

11 Station extensions /Hardware SIPLACE 80S-20/F4 User Manual

11.6 Nozzle changer for the Pick&Place head Software version SR.407.xx 01/2001 US Edition

492

The SIPLACE F machine is equipped as standard with a nozzle changer for the Pick&Place head.

The scope of delivery includes a nozzle magazine for five nozzles, e.g. four standard nozzles from

the 4xx series, and one special nozzle. Three additional nozzle magazines can be retrofitted, if

required, thus providing up to 20 nozzles. 11

The nozzle magazines (see point 1 in Fig. 11.9 - 8

) are each centered with two parallel pins, and

fixed to the mounting plate with a countersunk bolt (see point 3 in Fig. 11.9 - 8

). Nozzles are ex-

changed automatically during the placement process. 11

11.6.2 Technical data -Nozzle changer for the Pick&Place head

11.6.3 Functional description

Fig. 11.6 - 2 Overview of the nozzle changer

Nozzle types All nozzles from the 4xx series, special nozzle (optional)

Capacity 1 to 4 magazines each with 5 nozzles, can be configured as required

Nozzle exchange time Approx. 2 seconds per nozzle