SIPLACE Vision Customer_en.pdf - 第38页
User Interface Component Shape Wizard Quality-Influencing Decisions S tudent Guide SIPLACE V ision (Customer) User Interface Edition 12/2008 EN 38
User Interface
Quality-Influencing Decisions Component Shape Wizard
Student Guide SIPLACE Vision (Customer)
Edition 12/2008 EN User Interface
37
4.11.2 Quality-Influencing Decisions
1.) The lead grid dimensions
During the teaching of lead features, the programmer will be requested to make a decision about the grid
size of the lead group.
The measured grid for the group and 1 or 2 suitable nominal grid sizes will be prompted (e.g. 1.25 mm
(metric) and 1.27 mm). This needs to be programmed by taking into account the data on the data sheet
and will influence quality. The measured size may not be used to artificially raise the quality level, as this
is based on possible distortions to the teaching sample.
2.) Component shape center and body size
The Component shape center calculated during teaching is presented for a decision to the
programmer, as this is the component position which, together with the placement coordinates, will later
determine the placement accuracy for this component. Do not confirm this query without careful
consideration and always perform test placement if the components are extremely asymmetrical or
lopsided.
The body size is a value which is not used in the measurement procedure. However, it can help the
operator to recognize the component shape or assess the centering result (e.g. for shield components).
For this reason, the body size should be adjusted here to the actual dimensions of the (normally) dark
body.
3.) Tolerances
The tolerances for the nominal dimensions are set to low values by the CS wizard. ONLY YOU can
decide whether these are right for your components, based on your knowledge of the components
concerned and the requirements of your assemblies. ALWAYS check these tolerances AFTER teaching.
When using special component shapes, such as socket, connector and nonstandard, this also applies
to the programmed nominal dimensions, as leads of the same type could be dimensioned differently in
other groups.
User Interface
Component Shape Wizard Quality-Influencing Decisions
Student Guide SIPLACE Vision (Customer)
User Interface Edition 12/2008 EN
38
Component Shapes
Structure of Component Shape Data
Student Guide SIPLACE Vision (Customer)
Edition 12/2008 EN Component Shapes
39
5 Component Shapes
The component shapes and their features need to be described completely (and independently of the
camera type) for the image processing system. This description is to be made in the SIPLACE Pro
Component Shape Editor.
The following applies for the SIPLACE Vision image processing system:
A correct description of the component shapes, with geometrically traceable values is essential! Use
the component shape data sheet as the basis for this description.
Note: In the case of ICOS systems, there are often no descriptions or the tolerance values may be
set very high.
The component shape interpreted from the ICOS dataset is not necessarily the optimal shape for
SIPLACE Vision!
Inaccurate descriptions of CS geometries may work for older ICOS systems, although they could
lead to errors or placement offsets in the SIPLACE Vision system, which tests more accurately.
The simplest description of an object, which needs to be taught/programed with the camera before
application, is typically a Fiducial or an Inkspot.
The CS description, in contrast, must contain at least a group description.
NOTE: The image request at the camera is only triggered if the minimum requirements for component
shape data have been fulfilled (e.g. when all lead rows are described). Since SR/MC 603, the SIPLACE
Vision component shape type and the programming information for component shapes is
INADEQUATE.
Component shape types also contain other shapes, all in all a total of 17. This arrangement allows
you to find the optimum algorithms and illumination parameters for each class, which significantly
reduces the teaching required.
5.1 Structure of Component Shape Data
The CS data in SIPLACE Pro consist of the following data and settings:
Vision geometric data for the component shape; an assigned camera type; the nozzles to be used
and the inspection mode setting.
These settings can be edited in the CS Editor.
Sensor-specific default settings.
The parameters for the individual cameras are not accessible and contain the default illumination
setting and the algorithms for the respective shape.
Manipulation data.
These are created during CS teaching and are sensor-specific. They contain alterations to the
illumination value settings etc.
This dataset is currently not accessible for deleting, although it can be reset to default values.
CO handling data (such as nozzles, vacuum checks, special procedures...).
These settings are made in SIPLACE Pro and can not be edited on the station interface or SIPLACE
Vision.