FRITSCH Pick and Place machine.pdf - 第17页

17 Centering systems Laser centering The la ser cen ter ing is direc te ly ins t alled on t he a ssemb ly head . The compon ent w hich ha s to be ce nte red is whil e rotat ing me asured by th e lase r cent ering. It s s…

X/Y-Axis drive and control PA610

X/Y-Axis system PA700

Axis drive

and control

Belt transmission

The axis of the placeAll

are constructed with

belt transmission which is driven by modern DC

motors in combination with a high-solution linear

measurement system. This system is mounted

alongside of the axis.

The axis and assembling heads of the placeALL

range are weight-optimized constructed to

minimize the accelerating force. Therefore the

use of a belt drive is possible and there’s no need

to build in a spindle drive with shaft joint.

This is an enormous advantage for cost of

ownership and offers a high potential of cost

reduction in service and repair according to the

spindle drive.

The axis of the placeALL

combine the both

advantages of these two systems in an optimal

way: High dynamic of belt transmission added to

the exact linear measurement system.

The Encoder’s high solution of only 0.5 µm at

placePRO, placeALL

510, placeALL

610 and 1 µm

at placeALL

700 is optimal completed with an

axis-controller with the scanning rate of 100 µ

per axis. Therefore this highly dynamic movement

can be carried out exactly.

Centering

systems

Laser centering

The laser centering is directely installed on the assembly

head. The component which has to be centered is while

rotating measured by the laser centering. Its shadow

on the opposite side is analysed and a contactless fast

centering happens. The component capability ranges

from 0201 chips up to components with dimensions

of 32 x 32 mm and Fine Pitch to 0.6 mm. BGAs can be

centered in this way, too.

The laser centering is also a method to determine the

component dimensions like length, width and height.

Vision On-The-Fly

With a max. component height of 20 mm and a width

of 14 x 14 mm the placeALL

700 offers due to its high-

speed-camera the possibility to center with On-The-Fly

up to four vision-components at the same time.

Bottom-Vision

The bottom vision is an image recognition which measu-

res and analyses the components what are to large for

the centering at the head.

The software for image recognition determines the exact

assembling position and tests the BGAs of complete balls

respectively that the FPs‘ wires aren‘t deformed. These

components can be selected before processing. Used are

components up to 0201, µBGAs, 0.3 mm Fine-Pitch or

special components like for example connectors.

Assembling tool

with component

Vision 2

Vision 1

Usability and programming

The clearly laid out software guides the user step by

step to his goal. To setup a new project or alter an

existing one, the parameters can be simply chosen with a

mouse click. There is also a detailed help menu for each

function.

The smartASSISTANT monitors all user activities, gives

hints and tips and shows every error source in plain

text, so it is generally not necessary to consult the user

manual.

Component library

The component library contains over 450 component

models. This represents one of the biggest libraries

on the market today. All content items can be

edited or new ones can quickly be created.

Component Editor

If components, which are not part of the default

library, need to be placed, a graphical editor is used to

create a new component body in just a few steps.

User friendly

software