FEA Testing on Assembly

Hi,

I am trying to run a simulation on a force balance system, which has multiple pivot points on it in Solidworks. However, whenever I mesh and run the simulation in Solidworks, it turns it all into one solid component and neglects all the pivot points and turns them into weld points.

I've attached images so you can better understand what I mean.  So you can basically see the entire thing turned into one solid piece after I ran the test. How can I change this?

SolidworksSimulation