Research And Development Of NC Simulative Manufacturing

With the development of computers, the graphic technologies of computers have been greatly used in machine manufacturing, and the graphic simulating manufacturing has been one of the most important uses. The graphic simulating manufacturing is the technology that shows the process of machine manufacturing according to the NC program on the base of basic principle of computers graphics. The technology of graphic simulating manufacturing synthetically uses computer technologies, graphic technologies, multimedia technologies, software engineering, information processing technologies, and automatically controlling, it is a new and high technology. It has played a most important role in abridging the time of developing products, depressing the cost of manufacture, advancing the quality of products and the efficiency of production, and so on.In the course of developing the system of graphic simulating manufacturing, Visual C++ is the most used tool and the OpenGL is the most used technology. Aiming at the multifunctional NC machine MNC-CXZ300, and at the same time properly giving attentions to other NC machines, I have developed this 3D graphic simulating manufacturing system. This system is integrated with GAPT graphic automatic programming system, which realizes the combine of automatic programming and simulation of process. This thesis has mainly accomplished contents as follows:(1) Having researched deeply the technology of graphic programming by OpenGL, set the common class of CGL with the technology of OOP.(2) Having designed the NC editor and the interface with the GAPT system .The NC editor is used to edit NC program.(3) Having deeply researched the simulating manufacturing methods ofcomplicated faces. Having designed the simulating module, we can use the system to make 3D simulating of turning, milling, drilling into one. Having improved the simulating methods of turning thread, drilling holes, milling ellipse and manufacturing circles. The simulating manufacturing system can rotate, enlarge or deflate the graphics freely so that we can carefully observe the simulating.(4) The system help module has been designed. User can conveniently use it.This system has the characteristics of friendly interface, simple manipulation, good portability, all-round function and finer versatility. It not only can be used in work, but also in NC training. It fits the needs of our country and accord with the NC technique's latest development direction.