YesAX V3.1.2 - Software User Manual.pdf - 第65页

Recipe Creation Step by Step for 2D Re cipes 6-7 The Align CAD Coordinates dialog display s. Move the highlighted ROI (region of interest) in the video window, on top of the corresponding part and then click OK . When th…

6-6 Recipe Creation Step by Step for 2D Recipes

New Board Dialog Close

Define the Bottom

Left Corner

Board Size Info in CAD data?

User Want to Capture?

Prompt User to Capture board

Image Set

Launch the Grid

Image Set Dialog

Alignment Mark Info. in the CAD

Data ?

Capture Board

Image Set

Create Map

Background

Define bottom

right corner

Define top left

corner

Define Left

Alignment Mark

Define Right

Alignment Mark

Proceed to CAD Import

Yes

6.3 Step3: Import CAD data

The software analyzes the part position information from the CAD data and sequentially

positions the camera over three parts on the board. The objective is to verify the position of that

part. The first part selected by the system is the one closest to the bottom left corner of the board

(the systems origin) interpreted from the CAD data. Next is the part closest to the bottom right

corner of the board and finally the part at the top left corner of the board. For each part, the

camera will focus over the corresponding corner it thinks the part should be in.

Recipe Creation Step by Step for 2D Recipes 6-7

The Align CAD Coordinates dialog displays.

Move the highlighted ROI (region of interest) in the video window, on top of the corresponding

part and then click OK.

When the OK button is clicked, the software records the part position. Based on the part position

of the three parts located on the extreme corners of the board, the software compensates for any

differences in the coordinate systems between the system that generated the CAD data and the

system reading it. The factors compensated are XY scaling difference, board rotation and XY

axis skew. The Skip button on the dialog allows the user to select a different reference part. It is

recommended to select a small part, such as a chip, as a reference part because for big parts it

becomes more difficult to determine the center position. Also during this process you can use the

Shift-Ctrl and Arrow keys to move or re-size the box for more accurate alignment, if needed.

If the prompted part is not at the supposed corner of the board, the CAD data header information

may be incorrect in describing the CAD data. Pressing the Advance.. button launches the Setup

CAD Parameters dialog that allows you to adjust the coordinate system of the CAD data.

6-8 Recipe Creation Step by Step for 2D Recipes

After the coordinate system is adjusted, the system will move the camera to view each part one

by one. You are prompted by the Train New Part Marking dialog on every new part to train.

Verify and/or modify the Polarity and Center Mark checkboxes for the part’s marking if

needed. Select the correct Part Type and Package type for the part. The Package selection list

changes with the selection of Part Type. For example if Part Type resistor is selected, only the

packages for resistors will be listed. To have the software list all the available packages, select

Misc. for part type. If the correct package cannot be found, NO_PKG should be selected for

package. if you press the Skip button, the system will skip training the part and result in the part

NOT being inspected.

If the part in the CAD data is already in the part library, the Verify Part Marking dialog appears.