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Barry1Lau
Posts: 44
Registered: ‎04-18-2005
Message 1 of 12 (342 Views)
Accepted Solution

simplified springs

342 Views, 11 Replies
04-15-2013 06:28 AM

I am building a stamping die with pressure pads.  Is there a way to make a simplified die spring that compresses in an assembly without drawing out the coils.  I want a simple tube with the correct ID and OD that will compress when the components attached to each end move toward each other.  Can I set the Iproperties to something like rubber?

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Cadmanto
Posts: 3,175
Registered: ‎12-07-2011
Message 2 of 12 (337 Views)

Re: simplified springs

04-15-2013 06:43 AM in reply to: Barry1Lau

Barry,

The easiest method I would think would be to find it online then see if there is a downloadable model.

Short of that can you post an image of what you are looking for?

 

check.PNGIf this solved your issue please mark this posting "Accept as Solution".

Or if you like something that was said and it was helpful, Kudoskudos.PNG are appreciated. Thanks!!!! :smileyvery-happy:

Inventor.PNG     vault.PNG

Best Regards,
Scott McFadden
Inventor Professional 2013
(Colossians 3:23-25)

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JDMather
Posts: 26,161
Registered: ‎04-20-2006
Message 3 of 12 (319 Views)

Re: simplified springs

04-15-2013 07:44 AM in reply to: Barry1Lau

Create an Adaptive part.

Please mark this response as "Accept as Solution" if it answers your question.
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swhite
Posts: 531
Registered: ‎11-08-2012
Message 4 of 12 (312 Views)

Re: simplified springs

04-15-2013 07:51 AM in reply to: Barry1Lau

Extrude your tube, right click on the extrusion and select adaptive. Place that in your assembly and right click the part and select adaptive again. Constrain in place and it should adjust in length as your parts move. Although inventor does have a compression spring option to make actual compression springs.

Compression spring.PNG

Steven White
Lee C. Moore, Inc.
www.lcm-wci.com
Inventor 2011
Intel Dual Xeon E31225 @ 3.1 GHz CPU
16 GB RAM
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Active Contributor
Barry1Lau
Posts: 44
Registered: ‎04-18-2005
Message 5 of 12 (277 Views)

Re: simplified springs

04-15-2013 10:43 AM in reply to: swhite

Will this concept work for the rod of a nitrogen spring?  I currently have a nitrospring as a subassembly with a rod and body.  I am fairly new to Inventor but have 15 yrs with MDT.

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swhite
Posts: 531
Registered: ‎11-08-2012
Message 6 of 12 (270 Views)

Re: simplified springs

04-15-2013 10:49 AM in reply to: Barry1Lau

Sorry, running 2011, so if you include screen shots can better answer your question. But I believe you want it to work like a hydraulic cylinder, in which case when you insert that assembly into your main assembly, right-click and select flexible. This will allow the cylinder to slide in and out of the tube - as long as your cylinder is not constrained except to the axis, should move freely in and out in the subassembly. Then when you constrain the body to one point and the rod to the other, it will slide in and out as the parts change distance. Adaptive will actually change the size of parts, not just position.

 

Dont know how well you can see it, but the two included screenshots show an example of a flexible subassembly of a hydraulic cylinder'

Steven White
Lee C. Moore, Inc.
www.lcm-wci.com
Inventor 2011
Intel Dual Xeon E31225 @ 3.1 GHz CPU
16 GB RAM
NVIDIA Quadro 600 GPU
Windows 7 - 64 Bit
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JDMather
Posts: 26,161
Registered: ‎04-20-2006
Message 7 of 12 (250 Views)

Re: simplified springs

04-15-2013 11:49 AM in reply to: Barry1Lau

Barry1Lau wrote:

Will this concept work for the rod of a nitrogen spring?  I currently have a nitrospring as a subassembly with a rod and body. 


I think this is a different problem - you should have started a new thread.
The spring problem is for the spring to change actual length.

 

Do you want your  "Body" part to compress, or do you want your "Cylinder" to move or do you want both?

Next question is, why?

Because the best solution is also depends on the "why" answer.

 

But the general answer is, yes I am pretty sure what you want can be done one way or another.

For example, Animating a Parameter in Inventor Studio might be a better technique (less resource intensive).

Please mark this response as "Accept as Solution" if it answers your question.
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Active Contributor
Barry1Lau
Posts: 44
Registered: ‎04-18-2005
Message 8 of 12 (243 Views)

Re: simplified springs

04-15-2013 12:20 PM in reply to: JDMather
What I am looking for is having the pressure pad that the rod end is bearing against be able to push the rod into the cylinder body until it reaches the end of its travel then stop. This will enable crash detection when closing the die set. Maybe I will have to wait until I've had more experience with Inventor.
Thanks,
Barry Hazel
Mfg. Engineer
Lau Industries / Ruskin Company
Rochester Plant
(574) 224-5200
Distinguished Mentor
swhite
Posts: 531
Registered: ‎11-08-2012
Message 9 of 12 (234 Views)

Re: simplified springs

04-15-2013 12:49 PM in reply to: Barry1Lau

Sounds like drive constraint may be your best answwer.

Steven White
Lee C. Moore, Inc.
www.lcm-wci.com
Inventor 2011
Intel Dual Xeon E31225 @ 3.1 GHz CPU
16 GB RAM
NVIDIA Quadro 600 GPU
Windows 7 - 64 Bit
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JDMather
Posts: 26,161
Registered: ‎04-20-2006
Message 10 of 12 (229 Views)

Re: simplified springs

04-15-2013 01:22 PM in reply to: Barry1Lau

Sounds like Constraint Limits might be what you need.

or maybe Contact Sets.

Please mark this response as "Accept as Solution" if it answers your question.
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