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

INTRODUCTION

The wiring harness flattening consists of assembly of geometrical bundle to form a flatten bundle to get the 2D drawing details. For the mechanical wiring harness, assembly of geometrical bundle is the main component.

In the present project, the wiring harness for the following mentioned figure

ASSIGN ELECTRICAL PROPERTIES TO CONNECTORS

The required connectors are downloaded from te.com. The electrical properties are given to all the connectors using electrical part design.

1) Go to electrical part design.

2) Define the connectors by using CONNECTORS command.

3) Define the CONNECTORS CONNECTION POINT and BUNDLE CONNECTORS POINT to the CONNECTORS.

CREATING WIRING HARNESS

1) Create the assembly of geometrical bundle product in CATIA V5.

2) Open all the required connectors into the geometrical bundle assembly product. Note that all the connectors must be electrically defined.

3) As mentioned in the figure, the connectors are placed al the required positions using the SNAP, SMART MOVE, COORDINATE SYSTEM and MANIPULATION COMMANDS.

4) Now enter into the WIRING HARNESS ASSEMBLY workbench.

5) Click on MULTI-BRANCHABLE DOCUMENT, give the branch diameter and the bend ratio. Open the route definition and connect the bundle connection points.

6) To give the routing from main branch use ADD BRANCH POINT at the required location and give the sub branches.

7) Now, add the corrugated tubes which are created and saved in COT_TUBES catalogue.

8) Cover all the branches with corrugated tubes. Give the extremity point from 30 mm.

CREATING WIRING HARNESS FLATTENING

1) Open a new product file.

2) Go to ELECTRICAL HARNESS FLATTENING workbench. Select the Harness flattening parameters.

3) Change the parameters accordingly in general and drawing.

4) Make the window tile vertically and place the geometrical bundle in another window.

5) EXTRACT the geometrical bundle into the electrical harness flattening window. Now the geometrical bundle name is changed into the geometrical bundle Ehf (Electrical harness flattening).

6) Now select the FLATTEN command and select the bundle, the entire geometrical bundle will be flattened.

7) There are other commands like ROTATE, ROLL, QUICK ROLE, SYNCHRONISE which helps to modify the flatten bundle according to our requirements.

2D DETAILING

For 2D detailing go to DRAFTING. Select the front view. Get the flatten into the drawing sheet. Change the properties into the 3D in the drawing option.