Week 14 challenge
Butterfly Valve Assembly
Aim:
To assemble the Butterfly Valve Assembly in existing component using NX Cad
Procedure:
Step 1:
First select and open the Butterfly valve parts of this assembly
Parts of the assembly
- Body
- Shaft
- Retainer
- Disc
- Lever
- Nut
Step 2:
Open every part file into this assembly file in NX-Cad and using create a Butterfly Assembly body model.
Give constraint to the each and every part.
Step 3:
First give constrain to the body and retainer plate.
Constrain Used: Align and Touch.

Step 4:
Now give the constrain to shaft and disc plate.
Constrain Used: Align and Touch

Step 5:
Make a constrain with Shaft and Retainer

Step 6:
Constrain of Lever & Shaft is given
Constrain Used: Touch & Align

Step 7:
Part of Nut & Shaft constrain given
Constrain Used: Align

Step 8:
Finally give constrain to the lever bottom face and Body of the valve.
Constrain Used: Touch

Step 9:
Create a drafting sheet of the dimensions A0 size. And bring the necessary view in that sheet with the scale range of 1:2
Step 10:
Create a Datum Target Area of the Butterfly valve with the size of 60 dia.


Step 11:
Flatness of 0.25mm given to the 3 datum target areas and make it as single datum area name it as "A"

Step 12:
Create a FCF of one of the hole of the body.
Perpendicularity of 0.20mm Maximum material condition, with the reference of "A" Datum. Name it as "B" Datum

Step 13:
Create a FCF of one of the hole of the body.
Position of 0.20mm Maximum material condition, with the reference of "A" & "B" Datum. Name it as "C" Datum

Step 14:
Perpendicularity of 0.20mm Maximum material condition, with the reference of "A", "B" & "C" Datum. Name it as "D" Datum. This is mentioned as reference datum.

Step 15:
Create a FCF of one of the hole of the body.

Step 16:
Control the width of the body using profile tolerance of 0.25mm.

Step 17:
Give Position tolerance of the opposite side of the body with the reference of B, C & D datum respectively.



Step 18:
Finally create the assembly of the butterfly valve and GD&T sheet.

