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Vision Teach Station User Manual 11 Measuring components 12/2012 Edition 11.1 Preparing components for the measurement 173 11 Measuring components 11.1 Preparing components for the measurement 11.1.1 Placing the componen…

10 Exchange of data between the vision teach station and the production line Vision Teach Station User Manual

10.2 Measurement contexts 12/2012 Edition

172

With the "Automatically update measurement contexts of the selected station computer" setting a

check for new available measurement context files on the station computer will always be per-

formed for a selected station in the "Measurement contexts" view. New available measurement

context files will be automatically copied.

This setting should be disabled if it is undesirable that the SIPLACE Vision Teach Station connects

to the station computer to check the measurement contexts each time a station is new selected

in the "Measurement contexts" view.

Vision Teach Station User Manual 11 Measuring components

12/2012 Edition 11.1 Preparing components for the measurement

173

11 Measuring components

11.1 Preparing components for the measurement

11.1.1 Placing the component on the component support

 Release the lock on the positioning unit (item 2 in Fig. 11.1 - 1, page 175) using the magnetic

switch (item 2 in Fig. 11.1 - 1, page 175).

 Push the positioning unit (item 2 in Fig. 11.1 - 1, page 175) outwards out of the range of the

component camera (item 7 in Fig. 11.1 - 1, page 175).

On the component support (item 5 in Fig. 11.1 - 1, page 175), the center point is identified by

a mark (item 6 in Fig. 11.1 - 1, page 175).

 Place the component on the component support so that the middle of the component tallies

with the center point of the component support (item 6 11.1 - 1, page 175).

Place components with leads or balls on their backs. The leads or balls should point up to the

camera.

 Only use double-sided adhesive tape between the support and component to secure the com-

ponent and prevent it slipping if absolutely essential.

 Make sure that the white adhesive tape does not project over the body of the component. This

could corrupt the measurement.

 Turn the component support so that the edges of the component are parallel to the camera

edges.

 Make sure that the coordinate systems are aligned correctly (see chapter 12, page 180).

 Push the positioning unit until the middle of the component is roughly under the camera.

 Hold the focus point adjusting guide against the bottom edge of the camera.

 Turn the adjusting ring (item 4 in Fig. 11.1 - 1, page 175) up until the component just stops

touching the adjusting guide.

 Carefully pull the positioning unit back and remove the adjusting guide (see Fig. 11.1 - 2, page

176).

 Be careful not to damage the component.

PLEASE NOTE: 11

The focus point must be set with an accuracy < ± 0.4 mm, otherwise the component will be

mapped too large or too small.

Each camera has its own adjustment guide for the focus point (see section 3.2, from page

104). The focus distances are listed in section 13, page 182. 11

11 Measuring components Vision Teach Station User Manual

11.1 Preparing components for the measurement 12/2012 Edition

174

PLEASE NOTE: 11

It is very important to accurately set the distance between the component and the camera,

otherwise the component cannot be mapped correctly on the camera, i.e. the shape of the

image will not correspond exactly to the shape of the component. If the distance is wrong, the

component will appear too large or too small. The geometric description will not tally with the

actual component. 11