Research On Integrated/Intelligent Numerical Control Based On Grey Relevancy

This paper has a discussion and research on a new type of numerical control software platform INC, which is the abbreviation of integrated/intelligent numerical control. It is oriented to manufacturing. It has adopted an integrated philosophy, which abandoned the traditional big and complete objective but refined a small and selected feasible way to enhance the manufacturing efficiency and the quality of product. As well as discussing about a new type of numerical control, the paper also seeks for a more feasible solution of traditional CIMS in the small and medium size business. The main content and contributes of this paper main includes:Basing on the background, significance, the existing condition and the development trend of the research or modern numerical control technology, paper proposes the main content, and introduces the relative technological base of the topic. It does a research on the basic theory of the integrated/intelligent numerical control. Having analyzed the content of CIMS and it essential content, it plans and extracts the six part modules INC according to the 2.5D economical CNC. And it defines the content of narrow-sense INC and broad-sense INC, architecture and the relative key techniques.Paper also has a deep study of the three key technologies of INC. The first is CAD technology oriented to the CNC (CADoCNC). It includes the relative techniques and the realization method. After presenting the concept of CAD technology oriented to the CNC according to the requirement of engineering area, It does a further study of the main three techniques of CADoCNC. They are image preprocessing technique, image VQ technique, DFM technique and CAD/CAPP integrated technique. CADoCNC meets for the requirement of the numeralization of design in engineering area. Paper also gives an algorithm after design which is named group mutli-regualtion integration method base on extended PROMETHEE. It can enhance the efficiency of decision of selection of many plans of design.The second is CAPP Technology oriented to CNC (CAPPoCNC). It includes the concept, characteristics, the basic theory and the key technology. The main technology includes nonlinear process decision technology, manufacturing information and expression based on features, PDM integrated within CAPPoCNC and CAD/CAPP integrated based on PE. Based on this, we build a CAPP part module including CAPP, PDM, design/process/manufacturing parallel processing fuctions.The third is CAD/CAPP technology based on CNC (CNCbCAD/CAPP). The kernel technology includes the intelligent CNC technology based on STEP-NC, embedded system and microcontroller technology, realtime technology and the new CNC device level communication technology. It also introduces their fuctions and does a comparison and detailed discussion on different solutions. Finally we give a solution of open architecture, which uses CAN bus, distributed embed control system instead of PC and RTAI real-time solution to meet the time requirements of industrial device level. It has solved the key problem of INC. Paper also does a research and discussion on the inheritance algorithm of mutli-process decision for production arrangement and the intelligent CNC based on the STEP-NC extension, which main includes the introduction of STEP-NC, analysis of AP238 and some relative techniques. And we also suggest a modified INC architecture. Based on this, we build the interpreter model and do the division of function modules and do a detailed analysis of the working principle of it. Finally, it gives an integrated solution of getting a INC file based on the INC standard.Additionally, paper also a discussion and research on the collaborative method of INC. It proposed a collaborative manufacturing architecture of autonomous distributed units, and extends it to the level of embedded system. And in this chapter, it gives two examples, which are based on Windows platform and Linux platform. It describes the realization and implements process and gives a visualized course of the whole circuit of narrow sense INC.Paper does a discussion and research on INC with the methods of systematics, methodology, philosophy, manufacturing engineering, control engineering and some other aspects. It uses a new research philosophy and angle to deal with"separated island problem"of the traditional design, process, and manufacturing process. Toward the 2.5D economical CNC, it gives a effective solution of INC, which makes the theory and the principle of INC can be used and verified in practical applications. It have solved the difficulty in actual manufacturing process, and enhanced the efficiency of manufacturing.