摘 要

鞋楦是鞋的母體，是鞋幫樣設計、鞋底部件、鞋的成型模具設計以及制作鞋和固定鞋造型的依據。我國大多數制鞋企業(yè)還是采用手工制作樣楦和簡單的拷模加工方式，成本高、周期長、質量差。數控加工中心采用四軸加工可較快地直接制取母鞋楦。鞋楦刀位點計算、數字仿真系統的開發(fā)是鞋楦數控加工的關鍵步驟，將影響著鞋楦數控加工的加工質量、加工效率和加工精度。本課題研究鞋楦數控刀位點計算及其仿真系統的開發(fā)，采用軟件系統對測量后的處理數據進行處理得出鞋楦刀位點數據，然后根據刀位點數據通過仿真軟件對鞋楦表面進行CAM仿真，大大節(jié)約了加工費用，也大大降低了操作人員技術水平的要求。
本文首先概述了國內外鞋楦設計和制造的現狀。隨后，論文采用離散法造型技術，根據鞋楦測量后的處理數據構建出鞋楦三維模型。論文對鞋楦數控加工原理進行了深入分析，提出了三軸聯動螺旋進給加工方法。論文接著闡述了鞋楦刀位點算法中的最小距離法，通過C++ Builder 6.0工具軟件開發(fā)出了鞋楦刀位點算法軟件，得出刀位點數據，提高了算法效率。
本文最后介紹了鞋楦數字仿真技術并對所獲得的刀位點進行了數字仿真，結果表明刀位點算法正確，刻楦精度和質量也得到了保證，然后通過C++ Builder 6.0工具軟件開發(fā)出了鞋楦仿真系統，通過鞋楦刀位點數據得出鞋楦表面仿真數據。


關鍵詞：鞋楦，數控加工，刀位點算法，仿真系統












ABSTRACT

Lasts are the shoes parent substance, and they are the basis of the uppers of shoes type design, the shoe sole parts, the shoes takes shape the mold design as well as the manufacture shoes and the fixed shoes model. Our country mostly notational shoes enterprises use the manual system and simple beat-processing to produce the shoe last, as the result, the cost is high, the cycle is long, and the quality is poor. NC 4-axis machining center used to be faster made directly from the mother lasts. The lasts NC-point calculation, and the development of last digital simulation system are always essential steps of the numerical control processing to shoe last, are always affecting the numerical control processing quality of last, the processing efficiency and the processing precision. The study of the subject that development of calculation and simulation system for lasts NC-point uses the software system to carry on processing to the survey data to obtain the lasts NC-point, then carries on the CAM simulation according to the lasts NC-point through simulation software to the surface of last, greatly saved the processing charge, also greatly reduced the operator technical level request.
This article first outlines the domestic and foreign last designs and the manufacture present situation. Afterwards, the paper uses the separate method model technology and constructs lasts three-dimensional model according to the last survey data. The paper has carried on the thorough analysis to the numerical control processing principle of last, proposes the three axle linkage spiral precession and gives the processing method. Then thesis expounds lasts knife-point algorithm for the smallest distance, through C + + Builder 6.0 software development tools lasts a knife-point algorithm software, Lasts through the surface measured data knife-point data and increase the efficiency of the algorithm.
This article finally introduces the shoe last digital simulation technology and to the lasts NC-point which obtains has carried on the digital simulation, The results show knife-point algorithm is correct, last carving precision and quality has been guaranteed, then finishes the shoe last simulation system through C++ Builder 6.0 tools software, obtained the last superficial simulation data through the lasts NC-point data.
Key words：shoe last, numerical control processing, knife position spot algorithm, simulation system


目錄

摘 要 I
ABSTRACT II
1 緒論 1
1.1 鞋楦概述 1
1.2 國內鞋楦設計制造及研究現狀 1
1.3與課題相關的CAD/CAM技術 4
1.4 課題研究背景及意義 6
1.5 本課題主要研究內容 7
1.6 本章小結 7
2鞋楦刀位點計算 8
2.1鞋楦數控加工原理 8
2.2 鞋楦刀位點算法 9
2.2.1 銑刀的設計 9
2.2.2 最小距離法 9
2.2.3 空間坐標系的建立 10
2.2.4刀位點逼近方法的確定 11
2.2.5 有效投影范圍的確定 12
2.2.6 刀位點的確定[10] 12
2.3 刀位點算法的實現 14
2.4 本章小結 15
3鞋楦刀位點仿真 16
3.1 鞋楦的三維模型 16
3.2鞋楦刀位點數控仿真算法 17
3.2.1 空間坐標系的建立 17
3.2.2刀位點有效范圍的確定 18
3.2.3仿真離散數據點的確定 18
3.3鞋楦刀位點數控仿真算法實現 21
3.4本章小結 21
4 總結 22
參考文獻： 23
附 錄 24