Wiring harness routing & packaging Rules Week 3 Challenge

A. P Clamp

Aim is to define the standard component electrically. Here, we are provided with a P-clamp in .igs format, so load it into Catia V5. To make it an Electrical component follow the steps.

• Join the sub-surfaces together and convert into closed surface structure.

• Switch to Part workbench and solidify the closed surfaces.

• Identify the part, the path a bundle can follow (red or blue) and a base area where bundle will rest (yellow).

• First of all, create the geometrical parametres required.
• Create first point in centre of clamp at the extreme plane of body.

• Create second point in centre of clamp at the extreme plane of body.

• Create third point at base as shown.

• Now create a first plane at first point following the extreme plane of body as shown below.

• Create second plane at second point following the extreme plane of body.

• Create base plane at base point following a flat surface.

• Now all the geometrical parametres are created, so switch to Electrical Part Design workbench.
• To define the clamp component electrically, click on 'Define as Support' feature and then click on the component.
• A window will open for the electrical parametres.
• Fill in the data as asked. We already created points and planes for this.
• First point and plane goes into 'first plane definition' and same for others.
• Click ok.

• Again select the same feature and click on the component and a window will open.
• This time select second point and plane as 'first plane definition'.
• Click OK.

• The component is successfully defined electrically.
• Publications are available in the Feature Tree.

B. Back Shell for a Connector

Aim is to define the standard component electrically. Here, we are provided with a Back Shell in .step format, so load it into Catia V5. To make it an Electrical component follow the steps.

• Look at the component and identify the bundle entry face and back shell connecting face. Before defining it electrically, we have to add some geometrical parametres.

• Create a point in centre of face by using 'between option'. This is the Back Shell Connection Point.

• Add an Axis System on this point and follow the rule same as we do for connectors.
• Y-axis comes normal to the mating face and XZ plane along the face.

• Create a Bundle Connection Point in centre of the face.

• All the geometrical parametres are created, so now switch to Electrical Part Design workbench.
• First of all, define the component as back shell by clicking on 'Define Back Shell' feature and then clicking on the component itself.
• Click OK for the window that pops up.

• Now, define the electrical parametres.
• Click on 'Define Bundle Connection Point' feature and click on component.
• Select the first face that would come normal to the bundle as 'Representation'.
• Select the point which is created and the same face again for 'Initial Condition'.
• Click Ok and the parametres are added to feature tree.

• Click on 'Define Back Shell Connection Point' feature and click on component.
• Select the Back Shell Connection Point as 'Representation'.
• Select the mating face as 'Contact'.
• Y-axis comes as 'Coincidence' and X-axis as 'Orientation'.
• Click Ok and the component is Electrically defined.

C. COT Tubes

Aim is to create COT Tubes and add them as Catalog entity.

• To start with, open Electrical Part Design workbench.
• Select 'Define Protection Part' feature and as nothing is there is window, click on part name
• A window will open up asking all parametres.
• Select Corrugated tube as type.
• Insert values as required for Inner diameter and Thickness.
• Bend radius will be 1.5 times the outer diameter.
• Click OK and a solid part is created with same dimensions.

• Save the CATPart file and then click on 'Store device' feature
• Select the catalog from the system and the required family and hit OK.
• The same is stored in catalog and can be used later in Assembly.

• Similarly, do this for other dimensions as well and add them into catalog.