Research Of NC Manufacturing Graphics Simulation System Based On Net Environment

Nowadays, in the process of checking against NC program automatically, the main research way is NC manufacturing graphics simulation. Because the resultant graph is three-dimension, it can directly check the accuracy of NC programs, and help NC programmer check collision and interface, verify NC programs by the graphics display. Consequently, the NC graphic simulation is becoming a key technology in the CAD/CAM field.Recently fast developed, the Internet technology has broke up the limit of space and helped achieve cooperated design and net manufacturing, and demanded a new requirement for the manufacturing process simulation. The current simulation software (such as Pro/E, UGS manufacturing simulation block and so on) can't meet the requirement for Web-based cooperated design of different places and achieving net manufacturing.The thesis was based on the whole requirement for the net based environment simulation and net control system (Web CNC), researched the architecture, key technologies and backing up technologies of the net based simulation system. It applied VRML, J2EE technologies to achieve the original system of net based NC simulation.After discussing the key technologies of remote control of net end-nod NC equipments, the thesis came out the architecture of net based remote control of NC equipments, and achieved a sample based on the Java Applet and J2EE technologies.Besides, it achieved the open remote NC control simulation based on general platform and VRML standards using Open Inventor and ActiveX technologies. Considering the requirement for the NC simulation's communication and using the socket and multi-thread technologies, the thesis also achieved building the multi-client communication environment and solved the problem that communication is blocked and server responses late, which are caused by multi-client accesses the server at the same time.Based on the thesis's contents and results, we successfully developed a net based NC simulation system, and successfully proved the correct and mauling of the design approach.