error while importing urdf into rviz

Hi i am new to ROS universe, i am working on a simple mechanism which i want to simulate on rviz. I hope the links are correctly defined on solid works file , but while importing on rviz after that i could not move or do nothing. i am looking for hand to help me on this. Here with i have attached the link to my solid work file and the urdf file.

thanks in advance.