MODELLING OF BOX ASSEMBLY
Title : Project report on modelling of box aseembly using NX CAD
Objective : To design 3D CAD model of box assembly using NX 12
Introduction :
Sheet metal is metal formed by an industrial process into thin, flat pieces. Sheet metal is one of the fundamental forms used in metalworking, and it can be cut and bent into a variety of shapes. Countless everyday objects are fabricated from sheet metal.
In this project, the box assembly consists of 3 parts
a) Box (Main Body)
b) Lid
c) Hinge
This project is designed by sung NX 12 software
Design Methodology
Description :
The box assembly consists of 3 parts
a) Box (Main Body)
b) Lid
c) Hinge
Various steps performed while designing the model are explained in detail as follows
a) Box (Main Body)
Box can we designed using followimng steps
1. Tab : Draw sketch in the XY plane and add tab of given thickness
2. Add flanges : Add flanges normal to XY and XZ plane using given dimensions
3. Close corners : Use closed corners command to close the corners
4. Add flanges & hem : Add flanges using given dimensions and add hem at the end edge
5. Mirror body & Unite : Use mirror body feature to create the box. After mirroring use unite feature to unite both parts of the box
6. Add Dimple : Add dimple on adjacent sides using given dimensions and add another dimple at the bottom side
7. Unbend and Rebend : Unbend and rebend the metal sheet
8. Add bead : Add bead on the bottom plate using given dimensions and use mirror body feature
9. Add Hem flange : Add hem along all upper edges of plates using given dimensions
b) Lid
Box Lid can we designed using followimng steps
1. Tab : Create new datum plane. Create new sketch using given dimensions and create tab of given thickness
2. Add flanges: Add flanges at the top edges of adjacent sides using given dimensions
c) Hinge :
Hinge can we designed using followimng steps
1. Tab :
Create new sketch on the back plate and add tab using diven dimensions
2. Add flange and hem :
Add flange and hem on the using given dimensions
3. Unbend
Unbend the sheet metal to add more details
4. Make Normal Cutout :
Draw new sketch on the sheet metal surface and use normal cutout feature to create required cutout
5. Rebend
Rebend the metal sheet using rebend command
6. Mirror
Use mirror body feature to mirror the newly created bodies
7. Tab
Draw new sketch and create new tab using given dimensions
8. Break Corner
Use break corner command to add round shapes at the corner using given dimensions
9. Add flanges and hem
Add flanges and hem using given dimensions
10. Unbend and make normal cutout
Unbend the sheet metal. Draw new sketch and use normal cutout feature to make cut on the sheet metal surface
11. Rebend the sheet metal
Rebend the sheet metal to create the hinge
MODEL STANDARD VIEWS
ISOMETRIC VIEW
FRONT VIEW
TOP VIEW
BOTTOM SIDE VIEW
RIGHT SIDE VIEW
DRAWING SHEET IMAGE
Conclusion :
Modelling of Box assembly is done successfully using NX 12
Thanks & Regards
Vishal Sutar