Hey there. I've never docked with a port attached tirectly to a hinge and only a hinge, but I have used robotic arms to dock. Specifically, one of my space station uses a hinge and piston to extend and point a docking port at incoming spacecraft. One of those crafts, an SSTO, also uses a robotic arm of its own configured similarly to reach out and dock with the space station. With that in mind I'm pretty sure it's possible, if only a bit janky.