curve spring

[DavidNgu]

Hello,

I make 2 simple parts and placed in an assembly file.Could someone please show me how to make the following

1.Curved Spring with the ends flat so as to sit flush on the 2 parts

2. Spring sits on the base over the mount and between the circle on the top part

The angle is 1.39deg

The files are Inventor 2014

Regards

Dave

[JDMather]

I would use the Bend Part command after using Coil and "grinding" the flats.

Can you attach your attempt here?

[CCarreiras · Accepted solution]

HI!

To look real, it will take some work.

If you work with Inv 2015 there's a new option in sweep that makes this job easier.

Check it.

Did you find this reply helpful ? If so, use the    Accept as Solution or Kudos - Thank you!

[DavidNgu]

Hi JD

I only could get this far.Can you show how to Bend (Bend Tool Commend) this part so as it fits between the 2 parts in post 1?

Carlos,

Thank you for very good part.I will see now how you make

Regards

Dave

[DavidNgu]

Hi JD

I only could get this far.Can you show how to Bend (Bend Tool Commend) this part so as it fits between the 2 parts in post 1?

Carlos,

Thank you for very good part.I will see now how you make

Regards

Dave

[DavidNgu]

I make a bend in the spring with Bend Tool.I noticed a deformation in the middle of the spring.How do i fix this?

I place Bent spring in assembly and see interference at top.How do i now fix this?

Have i used this command correctly or where have i got it wrong?

Regards

Dave

[CCarreiras]

HI!

Cut the spring in the end of the process, using the surfaces of the other two parts.

The lines in the middle, it's normal, we can't fix it.

To avoid all this, check my case example, more work, but perfect shape.

[DavidNgu]

Hi Carlos

thanks for the help.....i agree your modelled part is very well done

Best Regards

Dave

[James__S]

I am looking at doing something similiar to your solution in Post#3 regarding the spring

A couple of questions please

1. Did you create the spring while in assembly mode?

2. How did you create the Surface 1 and Surface 2 references?

3. How did you get the 2 dimensions in the sketch-1 ?

Cheers

James

2014

[CCarreiras]

Hi!

1 - Yes, some work as to be made in assembly context.

2 - The surfaces are copys taken from other two part's faces. (In the assembly context)

3 - Arc perpendicular between the two surfaces.

[James__S]

Hi

I started with create Part in Assembly mode and saved the part to folder

1. I projected 2 lines (green)

2.  Then i placed a vertical Line

How do i perform the following?

How do i now create the Arc 

How do i get those 2 surfaces (reference 1 & 2)

Thanks

[CCarreiras]

What version you are using.

1. Delete the green lines you have now.
2. First copy the faces you need as reference: Edit the spring and use "Copy Object" face mode, and pick the faces you need to reference.
3. Tip:Now that you have your reference surfaces,  Open the part outside the assembly enviroment (less confusion)
4. Open a new sketch, project the correct info you need from the surfaces.
5. Create a line between the middle points of the projected lines.
6. create a arc between these points. Make it perpendicutar to the projected geometry (or tg to the line created in point 5 )
7. now you have the path to the sweep......

[James__S]

I am using 2014

[James__S]

I have come this far...is this correct?

[CCarreiras]

You copy wrong surface on top, you have better info if you copy the inner circle.... but tha's ok, you can proceed.

you dont need sketch 2 and 3, delete it

The arc must be perpendicular with the lower projected line, place this constrain.

[James__S]

Hi Carlos,

I just changed the shape of the original posters files.

I have the surfaces done in the spring part file....please how do i proceed from here

Thanks

2014

James

[CCarreiras]

Hi!

It's hard to explain all by words, so check the video and try to do it.

https://dl.dropboxusercontent.com/u/108503790/spring_1.mp4

[CCarreiras]

After create the surface who will guide the spring (previous video), we create some auxiliary geometry to guide the spring dimensions:

https://dl.dropboxusercontent.com/u/108503790/spring_2.mp4

[CCarreiras]

Now you create a 3D sketch with the spring path. Pay attention to the required auxiliary geometry to fix the spring geometry.

https://dl.dropboxusercontent.com/u/108503790/spring_3.mp4

[CCarreiras]

Hi!

Now the final step, the solid spring:

https://dl.dropboxusercontent.com/u/108503790/spring_4.mp4

[James__S]

Hi

Excellent instructional videos.Thank you for help

Did not know you could make a curved spring this way to fit between 2 parts

Cheers

James