BOX ASSEMBLY DESIGN USING NX CAD
BOX ASSEMBLY DESIGN USING NX CAD
OBJECTIVE:
To design a Box Assembly using NX CAD tool.
INTRODUCTION:
The learning of steps & features involved in designing a Box Assembly using a NX CAD tool.
DESIGN METHODOLOGY:
PROCEDURE:
Here we are going to Design Box, Lid & Hinge.
(1) BOX:
STEP 1:
Start NX CAD. Then set the global parameters as per requirements.
Menu-->Preferences-->Sheet metal
STEP 2:
Design a base sketch for box and create a base with Tab option
TAB: A tab is used to form a base of the model along the planar face with respective thickness. A sketch with single or multiple closed profile can be formed as a base.
STEP 3:
Use Flange option to form the side bodies of the box.
FLANGE: The flange feature creates a flat bended profile at an angle to a planar face.
STEP 4:
Then apply closed corner at the adjacent bends for both sides.
CORNER: The corner feature helps to close a corner where two adjacent bends meets.
STEP 5:
After closing the corner, use Hem Flange to create a ‘U’ profile which self-locks the sheet metal after bending.
HEM FLANGE: Hem Flange is used to modify the model by folding the edge of the sheet metal flange over onto itself.
STEP 6:
Now mirror the body to form a replicate of the existing body.
MIRROR: Mirror feature mirrors the selected face or body across the selected planes or line.
STEP 7:
Now unite the two bodies (Existing body & Mirrored Body).
UNITE: Unite feature used to unite the selected bodies into a single body.
STEP 8:
Now create a sketch and make a dimple on the front & bottom side of the box and mirror it on back side.
DIMPLE: Dimple is one of the punching process which is used to raise an area of the model perpendicular to the face where contour sketch is drawn.
STEP 9:
After that, create a sketch for creating a beads. Then select bead option with circular cross section and give proper radius and depth and mirror it to make it four beads at the bottom.
BEADS: Beads is used to lift a material along the contour of the sketch.
STEP 10:
Then use hem flange at top edges to create a ‘U’ shaped corners which neglect the sharp edges and create a smooth & safer edge.
HEM FLANGE: Hem Flange is used to modify the model by folding the edge of the sheet metal flange over onto itself.
(2) LID:
STEP 11:
Create a datum plane at resp distance. Then design a base sketch for lid and create a base with Tab option.
STEP 12:
Use Flange to create the bends in the lid which seats on the sides of the box.
(3) HINGE:
STEP 13:
Using a right side face of the box as a reference, create a base for the hinge using a Tab option.
STEP 14:
Use break corner option on hinge base to avoid the sharp edge.
STEP 15:
Then using the flange and hem flange, create a circular profile with the dia where the hinge rod get inserted to lock.
STEP 16:
After creating flange, unbend the profile with the use of Unbend option.
UNBEND: This feature is simply used to flatten the bended profile.
STEP 17:
Create a sketch that has to be cutout from the profile with Normal Cutout.
NORMAL CUTOUT: A cutout profile is used to remove the material from the base.
STEP 18:
Then rebend the model & mirror it to get the bended view of the model with the replication of the existing body.
REBEND: Rebend is used to restore the model to its bended state.
STEP 19:
Repeat the same steps for mating hinge by taking top side of the lid as a reference for creating a tab.
HERE ARE SOME OF THE SCREENSHOTS OF THE MODEL:
DRAWING SHEET:
CONCLUSION:
Thus the Box Assembly has been designed with the use of NX CAD tool and learned about features involved in creating the sheet metal model.
DRIVE LINK:
https://drive.google.com/drive/folders/1JDfGqwaKg9sURYeStWa_uWDOEX8BkTCf?usp=sharing