Setting Specific Collision Checks


  Clash and other analysis commands may not be available, depending on whether you have a license for the Space Analysis workbench.
NC Machine Tool Simulation provides users with two options for creating collision checks:
  • setting default collision checks, which enables users to select quickly the most common objects likely to be involved in collision checks
  • setting specific collision checks, which enable users to specify with precision different aspects of the collision check.

This procedure describes how to create specific collision checks.  The tasks involved include:

Open the Process1.CATProcess sample file, assign a machine to it, and set the automatic workpiece mount.

Create the Analysis Object

In this task, you define a collision check between the tool with its toolholder and the fixtures.

  1. From the Simulation Analysis toolbar, click Clash .

    The Check Clash dialog box appears.
    For more information about this command and the related dialog boxes, please see Creating a Clash (Interference) Check.
  2. In the Type lists, select Contact + Clash from the top list and Between two selections in the bottom list.

  3. Click in the Selection 1 box.

  4. In the PPR tree, select the T2 Face Mill D 50.

    The Selection 1 box is updated.
  5. Click in the Selection 2 box.

  6. In the PPR tree, select Part4.

    The Selection 2 box is updated.
  7. In the Check Clash dialog box, click OK.

    Configuring Analysis to Check for Collisions

  8. In the Simulation Analysis Tools toolbar, click Analysis Configuration .

    The Analysis Configuration dialog box appears.
    When you are executing the scenario described in this procedure, the MeasureBetween.1 and MeasureEdge.1 analysis objects do not appear in the Available list.
  9. In the Available list, select Interference.1, and press on the arrow button pointing to the Selected box.

    Interference.1 appears in the Selected box.
  10. Select Interference.1 and keep selecting the value underneath Analysis Level until you find Highlight.

    With each click, the value toggles among the four possible levels.
    For information on the four possible levels, see Configuring Analysis Objects.
  11. Click OK.

    Visualize the Collision in Simulation

  12. Click Analysis Mode .

    When the command is highlighted, the Analysis Mode is set to ON.
  13. In the PPR tree, select the Manufacturing Program.

  14. To run the simulation again, click Machine Simulation .

    If there is a collision, it is highlighted because you chose this analysis mode above.