Analyzing Targets

This task describes how to analyze robot reachability and accessibility.

See Also
Analyzing and Updating Welds from Results
  1. In 3D Simulation, designate a robot or a physical organizational resource as the ASO.
  2. From the Analysis & Output section of the action bar, click Analyze Targets .

    The Spot Analysis Scenario dialog box appears.



    If a physical organizational resource is the ASO, all of the robots in the physical organizational resource are considered for analysis and listed in the Robot list. Depending on the current selected robot, the corresponding weld analysis data (trajectories, tool profiles, configs and welds) is displayed.

    • Multiple robot analysis is not supported for fixed TCP robots. If the physical organizational resource has fixed TCP robots and mobile TCP robots, only the mobile TCP robots are considered for the analysis. Each fixed TCP robot must be analyzed separately.
    • If the Point Fastening operations implemented by the robot do not have spot weld trajectories, a new spot weld trajectory is automatically created for each point fastening operation and all of the manufacturing welds are added to Welds in the Analyse Target Orientation dialog box.
    • If the robot implements a General operation and the Point Fastening operations owned by the General operation do not have spot weld trajectories, a new spot weld trajectory is automatically created for each Point Fastening operation.
  3. Select a robot from the Robot list.

    The dialog box is updated with the weld details corresponding to the selected trajectory. The entries in Tool Profiles, Robot Configs, and Fasteners/Spot Targets frames are specific to the selected robot in the list.
    Note:

    Point Fastening operations, General operations, spot weld trajectories or compound spot trajectories can be selected at any time while Analyze Targets is active. Selecting any of these entities adds the corresponding manufacturing welds to the Spot Analysis Scenario dialog box.

    If a General operation is selected, manufacturing welds of the spot weld trajectories aggregated under child Point Fastening operations are added to the Fasteners/Spot Targets list. Spot weld trajectories are created for any child Point Fastening operations that do not contain a spot weld trajectory.

    If a Point Fastening operation is selected that already contains a spot weld trajectory, the manufacturing welds of the spot weld trajectory are selected and added to the Welds list. If the Point Fastening operation does not contain a spot weld trajectory, a new spot weld trajectory is created.

  4. Select a weld gun.

    Note: If you want to use any of the weld guns defined as can-use resources on the process or the weld guns associated with the trajectory in the weld analysis, you must create tool profiles on the robot for each weld gun before using Analyze Targets .
    Note: Fixed TCP Tool Profiles are listed with a ToolType of Stationary.
    Note: Multiple tool profiles can be selected by pressing the Ctrl key on the keyboard as selections are made.

  5. Double-click a row in the Tool Profiles list to select one or more home positions for a particular weld gun.

    The Home Positions dialog box appears.



    From the Home Positions section, you can check the robot and gun accessibility for the specified fasteners with the Open and Close home positions. Select one or both of the available home positions in the list. You can select multiple positions by holding the Ctrl key as you make the selections.

    Open position

    Close position

    From the Additional Parameters section, you can also specify values to consider Gun Open Clearance (Open with TCP offset) and Gun Tip Abrasion (Close with worn tooltip condition, gun joint offset plus TCP offset).

    Open with TCP offset

    Close with worn tooltip and TCP offset

  6. Select a configuration for the selected robot from the Configs list under Robot Configs.

    Note: Multiple configs can be selected by holding the Ctrl key as selections are made.

  7. Select and edit welds as needed in the Fasteners/Welds list.

    Welds can be removed from the list by selecting them and clicking Remove. All welds can be removed with Remove All. Note that welds removed from the list are not removed from the data.

  8. In the Parameters frame, select Compute from Start angle and End angle to force the computation from the specified Start Angle to End Angle even if a feasible solution is found. When not selected, the computation for a fastener/weld stops as soon as a feasible solution is found.

  9. Select Check for collision to check for any collisions in addition to the reachability check. When not selected, only a reachability check is performed.
  10. Select Compute with Tool flipped to check the reachability status at each fastener location with the tool flipped.
  11. Set the Collision Tolerance value.
  12. Set the Computation step angle to define the angle step at which the weld gun should be rotated for computation.
  13. Collision objects indicates the number of objects that are checked for collision. To edit/view the collision list, select Edit the list of collision objects .

    The Manage Collision Objects dialog box appears.



    In the Robot parts used for collision frame:

    • By default, the Selected Parts list contains all the parts of the robot except its base, and Available Objects list contains only the robot base.
    • Objects in each of the lists are displayed in the respective viewer below each list.
    • You can move any object between Available Parts and Selected Parts lists using the arrow buttons and , or by double clicking the object to move in the viewer.
    • Selected objects are cross-highlighted between entries in the list, the viewer below the list, and in the work area.


    In the Collision objects frame:

    • By default, Include all Objects is enabled. This means the Collision Parts list includes all of the objects except for those objects in the Robot parts used for Collision list.
    • You can remove any part from the list if that part should not be considered for collision analysis by selecting the object followed by Remove object .
    • You can empty the Collision objects list by deselecting Include all objects .



    Click OK to accept any changes made and close the Manage Collision Objects dialog box. Collision objects in the Spot Analysis Scenario dialog is updated with the proper number of objects.

  14. For Servo weld guns, you can expand Weld Gun Additional Parameters to reveal options for Gun Open Clearance and Gun Tip Abrasion.

    These parameters are as described in Step 5, above.

    Default values for Weld Gun Additional Parameters can be defined in Me > Preferences > Simulation > Process Engineering > Tool Analysis

  15. After all of the analysis parameters are set, click OK in the Spot Scenario Analysis dialog box.

    The settings are stored in the current scenario.

    • If no welds are selected for a given robot, that robot is not considered for analysis and a notification is displayed.
    • If no tool profile is selected for a robot, a notification is displayed.