Ball and Socket connection

[krywarick6]

I'm a bit brain fried today. I have a ball and socket joint in an assembly. I can get the rigid/flexible thing going, but I'm having trouble where my socket wants to spin around.

I want to stop the spinning motion when the socket comes into contact with the ball stud. The set up based on a coincident relationship of the origins. This why the socket spins and spins.

Any suggestions?

Christopher Zona - Product Designer
Concord, Ontario

 

[Theophilus]

I'm a tad unclear about the specifics of your question. However, you ought to be able to mate your socket such that it doesn't spin. Make a parallel mate with the front plane of the socket to the front plane of your assembly (or similar) and the spinning should stop (your orientation may vary).

Jeff Mowry

http://www.industrialdesignhaus.com

Reason trumps all. And awe trumps reason.

 

[smcadman]

Download "motion limiters" at Mike Wilson's site, and open the joystick assembly and see if that would help you out.

http://www.mikejwilson.com/solidworks/solidworks_files.htm

Flores
SW06 SP4.1

 

[krywarick6]

Unfortunately, the parallel mate will not work. I had thought about that, but the travel of the socket to the ball is circular and at a varying angle.

I will take a look at the motion limiters and see if something applies there.

Thanks,



Christopher Zona - Product Designer
Concord, Ontario

 

[SnowCrash]

Limit mates, mate? Angle restricted to a range, eh?
Or add the boss or bolt to the thru hole in the ball and create a limit mate to touch but not penetrate that boss.

--
Hardie "Crashj" Johnson
SW 2005 SP 4.0 (reluctant to change)
Nvidia Quadro FX 1000
AMD Athalon 1.8 GHz 2 Gig RAM

 

[CorBlimeyLimey]

krywarick6 ... take a look at the following example.

http://www.mooload.com/new/file.php?file=files/270706/1153956798/Joystick.zip

Helpful SW websites FAQ559-520
How to get answers to your SW questions FAQ559-1091

 

[GregLocock]

What you need, physically, is a Hookes Joint. The constraint removes the axial spin DOF from a spherical joint.

Cheers

Greg Locock

Please see FAQ731-376 for tips on how to make the best use of Eng-Tips.

 

[SBaugh]

Check out this thread - thread559-143656

Scott Baugh, CSWP

http://www.scottjbaugh.com

faq731-376

 

[Chrisp20006]

I realize this is an old thread but I figured I would try to revive to get an answer. I am in need of a way to restrict movement of a ball and socket joint, and I can't seem to figure it out. I tried to download the file "Joystick.zip" but the file hosting site won't let me get it and I can't figure out why. I also when to the

http://www.mikejwilson.com

site to look at the joystick file however it does not nessacarily fix the problem -- the base is not fixed and can move all around. Furthermore, I can't figure out what was done with the "limiter" part. So, are they the same? Is there any way I can restrict the movement of a "joystick" type assembly and have the base fixed?

 

[CorBlimeyLimey]

Unfortunately most hosting sites only keep the files for an unspecified period of time. The following was done in SW07. If you need a SW05 or SW06 version, let me know.

http://www.mooload.com/new/file.php?file=files/011206/1164935793/Joystick.zip

 

[Chrisp20006]

Thanks for posting, however I still cannot download the file, and I have no clue why. The page just seems to time out....

 

[CorBlimeyLimey]

Try this one;

http://www.mytempdir.com/1092664

 

[jistre]

Do a google search for "gimbal". This mechanism should do what you want. You can keep the ball-and-socket joint, but use the geometry of the gimbal to prevent the ball from revolving around its own axis while still allowing it to revolve around the original base axes.