| With increase speed of train, the higher quality and machining accuracy of train wheels are required. The rough wheels are hot rolled steel, whose dimensions are scattered in a large range. The wheels are produced by order with middle or small batch. The cycle of supply is short. Given the situation mentioned above, NC programming is requested to be fast, efficient, and accurate. Manual programming can not satisfy the demands of production. With no doubt, modern programming technology is the first choice. In recent years, automatic programming technology of single-cutter NC lathes has been researched widely in the world. However, the technology of twin-cutter NC lathes has barely been researched. Twin-cutter NC turning programming system is helpful to improve programming efficiency and quality according to enterprise's requirements. In this system, computer-aided technology is utilized in creation of the models, process planning, calculation of cutter location data (CLDATA), generation of NC code and simulation of the machining, etc. The main contents are as follows:1. An overview on current situation of NC technology is represented. NC programming technology and method are presented. Further more, some key technologies of twin-cutter NC turning programming system are released.2. The platforms and tools (ObjectARX and VC.NET) to develop twin-cutter NC turning programming system are introduced.3. The function and technology scheme of twin-cutter NC turning programming system are designed, with the content of menu customization, interactive interfaces of process, preprocess, post process and simulation of the tool path.4. The function of the interactive process plan is performed on common CAD platform. Process plan data is gathered as a unit of step, which is stored into chain tables.5. The purpose of simulating tool paths and the key technology of implementing trail simulation are discussed. Besides, the effect of trail simulation on AutoCAD platform is presented too.
|
PDF Full Text Request