00191369-02.pdf - 第266页

6 Vision functions User M anual HS-50 6.6 Test Component Software V ersion SR.501.xx 12/99 Issue U S 266 t I I t Lines : 6 red: E dges of the c ompone nt detecte d 6 Comments: 6 The red li nes m ay often b e cover ed by …

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User Manual HS-50 6 Vision functions
Software Version SR.501.xx 12/99 Issue US 6.6 Test Component
265
t IIt
Use Esc to quit this option. The video image disappears and the Test component menu is dis-
played once more on the screen. 6
Color overlays of the individual measurement steps during step mode 6
1. Size mode 6
See Section 6.6.4.14
on page 289 for a definition of the measuring methods. 6
You can recognize this measurement method by rotating windows around the component edges 6
Procedure: 6
(1) Inside the search window, profiles are created in the X and Y directions. With the aid of the
gradients thus formed and a geometric filter, the approximate position of the component is
determined.
(2) Windows rotate around the component’s edges. The profile and gradients are determined for
each window. The sum of the gradients is an indication of the agreement of the window angle
with the position of the component.
If the sum of the gradients reaches a maximum, the angular position of the component has
been determined.
(3) Under the angle determined in step (2) the first step (1) is repeated. Now it will be possible
to determine the position of the component in the X and Y-directions more accurately.
Rectangles:
green: X and Y- pick-up tolerances 6
orange: component dimensions and tolerances supplied by the station 6
blue: search area for position recognition 6
6
Comments 6
1. The position of the component as determined must be within the green rectangle
otherwise the component will not be placed. 6
Applies to all measurement steps! 6
2. The component must be located within the orange window. Otherwise the measurement
results will not be dependable. 6
6
3. The search areas should have the same alignment as the component and also be larger
than the component. 6
6 Vision functions User Manual HS-50
6.6 Test Component Software Version SR.501.xx 12/99 Issue US
266
t IIt
Lines: 6
red: Edges of the component detected 6
Comments: 6
The red lines may often be covered by others and thus possibly not detectable. 6
Overlay: 6
gray: Profile in the integration direction in question 6
blue: Gradients from the above profiles 6
yellow: Results from the geometric filter 6
red: Interpolation limits for position determination 6
light blue: Results of interpolation -> Position 6
Comments: 6
The results of interpolation should be found around the maximum of the geometric filter. 6
Cross: 6
white: Results of position recognition -> X and Y-angles 6
Diagram: 6
Results function of the angle search (rotating windows). 6
Comments: 6
The minimum (corresponds to the maximum of the sum of the gradients) indicates the non-
interpolated angular position. The final results (via interpolation) are indicated by a light blue
line. The precision of the diagram is limited by the resolution of the monitor. 6
6
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2. Row mode
See Section 6.6.4.14
on page 289 for a definition of the measuring methods. 6
You can recognize this measurement method by the presence of windows around the central lead
of a row of leads. 6
Procedure: 6
(1) Position recognition takes place by creating a profile vertical to the direction of the rows. In
this way the edges of the component are determined.
(2) With two additional windows the angular position of the component can be determined.
6
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User Manual HS-50 6 Vision functions
Software Version SR.501.xx 12/99 Issue US 6.6 Test Component
267
t IIt
Rectangles: 6
green: X and Y- pick-up tolerances 6
light blue: A. 2 to 4 search windows for position recognition. These are positioned
around the central lead of each row of leads.
B. 2 additional search windows for angular measurement. The two
windows are located on the same row of leads. 6
Star: 6
orange: Results of approximate search 6
Comments: 6
The star indicates the position in the direction of the leads. Depending on which measure-
ment algorithm has been selected the middle or the tip of the lead will be displayed. 6
Cross:
white: Results of position recognition -> X and Y-angles
6
brown: Residual angle tolerance for subsequent measurement steps 6
Overlay: 6
gray: Profile in the integration direction in question 6
blue: Gradients from the above profiles 6
yellow: Results from the geometric filter 6
red: Interpolation limits for position determination 6
light blue: Results of interpolation -> position 6
6
3. Corner Mode 6
See Section 6.6.4.14
on page 289 for a definition of the measuring methods. 6
This measurement method can be recognized by the windows around the entire row of leads. 6
6
Procedure: 6
Å Determine the position in the direction of the leads in the light blue window
Å Determine the position vertically to this in the dark blue window
Å Calculate the position of each lead group and thus of the component
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