Wiring harness design in CATIA V5 - 3D modeling Week 7 Challenge

AIM:

To flatten the wire harness assembly completed in week 4 assignment and place the flattened view on a drawing sheet.

OBJECTIVE:

• To flatten the wire harness assembly completed in week 4 assignment.
• To orient the wire bundle as shown in the layout.

• To place the flattened view on a drawing sheet.
• To ensure bundles with protective coverings has different visuals on drawing view.

METHODOLOGY:

Step - 1:

1. Create a product file and navigate to the Electrical Harness Flattening for wire harness flattening option and save it in the same location where the wire harness or routing assembly is stored.
2. Define the 'Harness flattening parameters' in order to flatten the required wire harness assembly.
3. While defining the harness flattening parameters in the drawing menu single line is selected for bundle segment and double line is selected for protective coverings in order to differentiate between the wire bundle and cot tubes in drafting.

CATProduct file:

Step - 2:

1. Select the 'Extract' option from the Electrical Harness flattening workbench and select the Geometric bundle product in the wire harness assembly product file.
2. Then wire harness assembly is imported to the Wire flattening product file with 'EHF' extension added to the geometric bundle assembly name.

Step - 3:

1. Select the 'Flatten' option to flatten the wire harness assembly.
2. Then select the active plane, then select any one branch and then select the 'select all branches'.
3. If there is no discontinuity in the bundle segment then all the branches will be selected and by pressing 'ok' the wire harness assembly will be flattened.

Flattening:

Step - 4:

• Use Rotate and other commands to rotate the branches and bring them in proper orientation as per the given layout.

Step - 5:

• Save the product file using 'Save management' option so that all the related product files and part files are stored in single directory.

FOR DRAFTING:

1. Create a new drawing file and save the file in the same location.
2. Insert the title block template and fill up the required details.
3. Add the front view of the harness assembly by selecting any one of the flat faces of the connector and orient the view as per the requirement.
4. Go to the properties of the view and select the '3D Wireframe' on and ' Is always visible' option in order to see properly the Wire bundle, connectors and the protection coverings.
5. Show and name all the parts used in the wire harness assembly in form of a table.

Drafting:

synchronization:

CONCLUSION:

From the above assignment we learnt how to flatten a given wire harness assembly and how to place the flattened view on a drawing sheet and show all its components.