Study On Key Technology Of NC Machining Simulation System For Virtual Manufacturing

The paper particular discusses the actuality and signification of study on the Virtual Manufacturing(VM) technology, and Numerical Control (NC) machining simulation system with use of VM technology is researched. The framework of system , NC machining graphic simulation system , the analyses of kinematics error, milling force modeling and the forecast and analyses of workpiece surface are involved in this paper.Based on the function require for the VM , the paper adopts Object Oriented Programming(OOP) technology in NC machining simulation system and develop the VM technology theory. To the graphic simulating system research and implement, the paper gives a new way of having virtue disperse-vector method and image-space method, and simulation results indicate that this way is effect. The milling model is present, and flow chart of the force's arithmetic and example of simulation is also given. These which can display high quality realistic picture is executed under the driving of NC code and simulation result can be received as the same as real machining. The paper gives the error forecast and analyses of workpiece surface model, and it can reflect the reality.The sufficient research on the VM technology is able to make it real application in production. And the success of its application helps making the manufacturing technology go out the narrow scope and enter the stage of prediction all-round.