The Simulation Analysis And Research About Movement Parts Of Circular Guide-Way Long Crossbeam In Special Milling And Drilling Machine For Super-Long Plane Of Large Workpieces

In this thesis, the structure of special milling and drilling machine is analyzed. Both Pro/E, the 3-D modeling software, and ADAMS, the multi-bodies dynamics software, are applied to the simulation analysis and research of the machine tool, in order to optimize the structure of the machine tool and improve its dynamic performances.Pro/E, the 3-D modeling software, is used to establish the solid models of the machine tool. The machine-body crossbeam subunit, the guide-way carriage subunit, the back elevator carriage subunit and the front elevator carriage subunit are correspondingly disposed in the phase of modeling. The models are exported to ADAMS to be modeled and simulated through the interface between Pro/E and ADAMS.The virtual prototype of special milling and drilling machine are changed from the solid models of the machine tool exported to ADAMS from Pro/E by ADAMS. The marker points and the design points are created in the virtual prototype of the machine tool. The constraints, the forces and the motion among parts of the virtual prototype are created in the virtual prototype of the machine tool. The contact forces between the guide-way carriage subunit and the machine-body crossbeam subunit, the contact forces between the guide-way carriage subunit and the back elevator carriage subunit, the contact forces between the guide-way carriage subunit and the front elevator carriage subunit are created in the virtualprototype of the machine tool. The load is imposed on the virtual prototype. The simulation time and steps are defined. Finally the dynamics simulation of the machine tool is carried out. The simulation results are analyzed.The simulation and optimization analysis of the machine tool are carried out by ADAMS. The maximum vertical loads acting on machine-body crossbeam are acted as the design objective function. Based on this, the positon of milling cutter and the position and collocation of the contact forces on the machine-body crossbeam subunit are optimized and analyzed. The loads acting on the guide-way carriage subunit and the machine-body crossbeam subunit are analyzed in several instances. The referenced schemes for the structure design of the same kind of machine are provided.