00195044-22_UM_VisionTeachStation_5.x.x_DE_EN.pdf - 第172页
11 Measuring components Vision Teach Station 5.x.x User Manual 11.1 Preparing components for the mea surement 05/2019 Edition 80 PLEASE NOTE: 11 It is very important to accurately set the di stance between the component …
Vision Teach Station 5.x.x User Manual 11 Measuring components
05/2019 Edition 11.1 Preparing components for the measurement
79
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 81) using the magnetic
switch (item 2 in Fig. 11.1 - 1
, page 81).
Push the positioning unit (item 2 in Fig. 11.1 - 1, page 81) outwards out of the range of the com-
ponent camera (item 7 in Fig. 11.1 - 1
, page 81).
On the component support (item 5 in Fig. 11.1 - 1
, page 81), the center point is identified by a
mark (item 6 in Fig. 11.1 - 1
, page 81).
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 81).
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 ed-
ges.
Make sure that the coordinate systems are aligned correctly (see chapter 12, page 87).
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 81) 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
82
).
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
15). The focus distances are listed in section 13, page 89. 11
11 Measuring components Vision Teach Station 5.x.x User Manual
11.1 Preparing components for the measurement 05/2019 Edition
80
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
Vision Teach Station 5.x.x User Manual 11 Measuring components
05/2019 Edition 11.1 Preparing components for the measurement
81
11
Fig. 11.1 - 1 Base module - Placing the component on the component support
(1) Magnetic switch
(2) Positioning unit
(3) Micrometer screw for positioning the component support
(4) Adjusting ring for adjusting the height of the component support
(5) Component support, rotating, for optimum angular alignment during the measurement
(6) Centering fiducial on the component support
(7) Component camera