Screw-clamp system

grabcad

This assembly, modeled using Autodesk Inventor 2014, is a typical part from a clamping device. It's used to securely hold a "part" within a jig for manufacturing purposes. The clamping force is applied by a screw with a value of 1800 N (approximately 405 lbs). You can access the .iam and .ipt files to explore the simulation settings in Inventor's Dynamic Simulation environment. To perform a stress analysis on this assembly, start by examining its components, which are constrained together as shown in images 1-3. To simulate the screw action, two forces of 1800 N each are applied in opposite directions. In the stress analysis simulation (named "Assembly Simulation"), ensure that the bonded setting is changed to "Sliding/No separation" and verify that all materials are assigned as steel. Fix the bottom face and set up the forces accordingly, then run the simulation. Check the item contacts in the browser and change three contacts to "Bonded." Re-run the simulation, observe the results, and animate the moving parts for a better view. The colors indicate stress levels from blue (low) to red (high), with 1 MPa equating to about 0.1 Kgf/mm². Enjoy exploring this clamping device model!