Step 6A.8: Get the 2D-Cam Coordinate Data
Contents
The Objective of this Step:
To link a 2D-Cam to a Cam-Data FB.
To use the Cam-Data FB to:
| • | Make a plot of the cam parameters for cam analysis |
| • | Get the Cam-Coordinates |
Summary of this Step:
This step will:
| 1. | Add a Cam-Data FB |
| 2. | Link the Cam-Data FB to the 2D-Cam |
| 3. | Plot the Pressure Angle of the 2D-Cam with a Graph FB |
| 4. | Use the Cam-Coordinates FB to calculate the Cam-Coordinates |
Video of this Step
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Add a Cam-Data FB to the graphic-area
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To Add a Cam-Data FB:
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 Cam-Data FB |
Step 2 is complete The Cam-Data FB is larger than other Function-Blocks. It has four output-connectors |
Link the Cam-Data FB to a 2D Cam
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The Cam-Coordinates dialog opens. |
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 Cam-Coordinates dialog-box |
The name of the 2D-Cam shows in the 'Selected Cam-Track' box Step 2 is complete
To open the Cam-Coordinates dialog later: Double-click the Cam-Data FB again, or See 'How to open a dialog-box' |
Cam Analysis - Pressure Angle
Cam Data FB output-connectors |
There are four output-connectors from the Cam-Data FB. - see the image for the output from each. A Profile/Extrusion element is one way we can add mass to a Part. However, the only Profile in the model is the Cam-Follower Roller, which will not have a large mass. Also, it does not represent the distribution of the Mass in the Cam-Follower System. Thus, in this tutorial we will not analyse the Contact-Force or Contact-Stress between the Cam and the Cam-Follower. We can however, analyse its Pressure Angle and Radius-of-Curvature.
The bottom output-connector is for the Pressure Angle. See: Cam Analysis and Checklist for further information. See Tutorial Forces 13 for force analysis. |