Week 8:- 3D Finishing Challenge 2

Project: Clamp & Rest Unit Design

Introduction:

This project report is about 3D Finishing a automotive BIW Fixture and creating Rough Locators using CATIA V5.

Objective:

The aim of this Project is to understand and demonstrate a 3D finishing procedure of BIW Fixture Design and design Rough Locator. A product is developed considering all design and safety factors which satisfies industry’s standards, manufacturing & functional requirements and engineering inputs using CATIA V5.

Introduction:

3D finish is a process where the design is being completely finish & to be ready for final simulation & 2D detailing. Following points are taken into consideration while finishing the design

• Hole concentricity & hole sizes

All parts hole’s concentricity & holes sizes are checked for easy assembly while finishing the parts.

• Machining area:

The machining area in every part should be defined & the machining area should be highlighted by using standard color code. Machining is to be done on parts to properly mount with mating parts. Machining only on desired faces reduces cost & save time also machining increases accuracy of dimension. So before going to simulation or detailing machining area should be defined.

• Nominal positioning of unit:

All unit’s dimension should be maintained nominal to ensure easy assembling of the unit. Pin unit are exception to this as they are primary locators and cannot change their location.

• Hole’s coloring standard:

In 3D finish holes coloring should be done to identify what type of hole it is? It depends on customer standard. Customer specifies color like

Blue Color for Dowel holes.

Yellow Color for Threaded holes.

Cyan Color for Counter bore or Simple holes.

Pink/Cream Color for Machined area.

• Pneumatic lay-outing

Pneumatic lay outing is arrangement of different pneumatic pipes which work as an inlet to the pneumatic cylinder. It should be done properly for proper functioning of the units.

• Gaps checking:

The gaps between the different units checked to ensure the proper individual working of different units.

• Fastener’s implementation

Fasteners should be given in all units as per the requirement & load on the part

• Avoiding clash between different parts

Proper gap should be maintained between units to avoid the clash between the different units.

• Mylar splitting as per panel profile

Mylar splitting as per panel profile should be confirmed while finishing the design.

• Proper renaming of parts/ assemblies as per the standard

Proper renaming of parts & assemblies should be done while finishing the design hence we can identify each & every part easily with unique identification.

Arrangement of all units:

Nominal Positioning of Power Clamp Units:

Nominal Positioning of Rest Unit:

Color coding of holes and machined area:

All required Hardware: