Week 8:- 3D Finishing Challenge 2

Aim: Perform 3D finish and create rough locators for the assembly design.

 

The 3D finish is the process by which a design is completely finished and ready for final simulation and 2D detailing, as shown in the figure below. While finishing the design, the nominality of each unit and hole is checked to ensure that all units can be easily assembled. The concentricity and size of the holes should be checked to ensure that the various parts can be easily assembled. Fasteners are implemented based on hole size, and standard color codes based on customer requirements for differentiate type of hole/part. Standard hole colors are violet for a simple hole, yellow for a threaded hole, cream for a machined area, and blue for a dowel pin hole. After completing all of the preceding steps, the model is sent for simulation and 2D detailing.

 

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

• Nominality : All unit dimensions should be maintained nominal to facilitate easy assembly of the unit from a fixed edge.

 

• Hole concentricity & hole sizes: All parts are to be checked for hole concentricity and to be confirmed for easy assembly while finishing the parts.

• Machining area: The machining area in every part should be defined and the machining area should be highlighted by using standard color code.

• Gaps checking: Proper gap should be maintained between units to avoid the clash between the different units.

• Fasteners implementation: Fasteners should be implemented in all unit as per the requirement and load on the part.

 

Rough locators

Rough locators are used to locate workpieces in the automation process depicted in the following image. A rough locator is a component that guides the operator on where to place the car panel on the units. The use of rough locators increases precision and consistency. Rough locators are placed according to the angle of the respective panel, thus the part can only be loaded in a specific direction and orientation.In this case rough, the rough locators are provided to all five panel.

Full assembly, ready for the 2D detailing and processing.

Base unit with all required hole to place the different unit.

Conclusion

All units were given the necessary nominality, and all holes were formed on the clamp and base units, and fasteners were furnished accordingly.