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Research And Develop Of CAD/CAM Integrated System For Numerical Control Linear Cutting

Posted on:2004-09-05Degree:MasterType:Thesis
Country:ChinaCandidate:L H LuoFull Text:PDF
GTID:2121360092492612Subject:Mechanical Manufacturing and Automation
Abstract/Summary:PDF Full Text Request
Numerical control machine tool gains comprehensive appliance in industrial manufacture, accordingly numerical control programming technology also gains rapid development. Overseas numerical control CAD/CAM system that function is very strong and system' s price is high, it is difficult that gain appliance and expansion in middle and small enterprise; We have many domestic numerical control CAD/GAM software, each software has the special features and is not perfect, many ways need to study, for the reasons it is necessary to develop the numerical control programming system which face middle and small enterprises and has independent copyright.This paper develops and researches CAD/CAM integrated system of numerical control linear cutting, discusses the following several contents:(l)Based on practical requirement discuss structure of system framework.(2)Discuss two key technology: curve modeling technology and non-spacing integrated popular CAD software technology, respectively realize free-curve and juncture with popular CAD software based on two technology. It analyzes CAD module class and system data structure, realizes CAD module function of numerical control wire cutting integrated system by discussed technology andmethod.(3)it discusses that adopt technology of sorting graphics element to realize function that confirm machining track. It analyzes instruction formats of 3B and G NC code and produces NG code us i ng re I evant mathemat i ca I methods by analyzing tool position. It discusses realization approach of simulating process, finally completes CAM basic function.(4) Exp lain system bas i c operat i ng flow by example, it makes out that system realizes introduction exploitation, accumulates experience for next deep research...
Keywords/Search Tags:linear cutting, CAD/CAM, Bezier curve, B-spline curve, double-linked-list, non-uniform rational B-spline (NURBS) curve
PDF Full Text Request
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