cam surface 中文意思是什麼

cam surface 解釋
凸輪面
  • cam : CAM ＝computer-aided manufacturing 計算機輔助製造，計算機輔助生產。n. 【機械工程】凸輪，偏心輪；靠模。
  • surface : n 1 表面；地面；水面；廣場，空地。2 外觀，外表，皮毛。3 【幾】面；切口；【航空】翼面。adj 表面的...
  1. The paper studies the surface geometry of globoidal indexing cam by applying the theory of conjugate surfaces and the method of coordinate transformation, presents the equations related to the main inducement curvature of the cam profiles, analysis and deduces the equations of two circumscription curves, which judge if the conjugate surface could mesh properly. some calculate examples and conclusion are given. the surface equation of the globoidal cam and conjugate equation are established

    論文首先在分析空間嚙合原理基礎上，採用坐標變換法推導出弧面分度凸輪的工作廓面方程、嚙合方程和壓力角計算公式，對弧面分度凸輪的嚙合特性進行了深入的分析和研究，對判斷曲面能否正確嚙合的依據如兩類界限線方程以及誘導主曲率等進行推導，並給出算例。
  2. Compared with cubic splines, quintic splines have more advantages for surface machining. so the generation and processing of nc instructions have become one of the nucleal technologies of cam and cnc

    由於與三次樣條函數相比，五次樣條函數具有更大的優越性，所以基於五次樣條的nc指令生成與處理技術已成為cam技術和cnc技術的主要發展趨勢之一。
  3. Turn the vertical driving cam to the position where throat plate surface 3 and needle tip 4 align with each other, and the first or the second tooth of the top end of feed dog 5 descends from the throat plate surface

    讓針尖4與針板上面3對齊，在送布牙5的前端1 2齒從針板上面下沉的位置，轉動上下傳送凸輪，進行固定。
  4. The re technique is generally composed of 3 - d surface digitalization, data procession, surface reconstruction, cad 3 - d modeling and rapid manufacture, etc. the reverse engineering cad / cam system has broad industrial usage, and the research work has extremely theoretic and application importance

    Re技術通常涉及三維測量（表面數字化） 、數據處理、曲面重構、三維建模及快速製造等相關技術。逆向工程cad cam系統具有廣泛的工業用途，其研究開發工作具有較大的理論意義和應用價值。
  5. In the thesis. reading the iges file - 3 - and all the geometry entities and annotation entities are extracted ; on the base of geometry entities extracted, geometry entities are classified based to their three views. a new data structure is proposed to describle 3d form features ; inspection items of the workpiece are recognized ; the cmm - based inspection planning system is built ; on the other hand, as a part of cims, cmm need exchanging data with the software of cad / cam, so iges export interface is developed based on iges standard. in order to show the whole information of the surface, the 3 - dimensional free - form surface is drawing using the opengl

    通過讀取iges文件對實體進行分離、提取、識別出對工件進行描述的原始信息；在此基礎上，西安理工大學碩士學位論文提出一種優化演算法對三視圖自動進行分離，建立了一種對工件進行三維描述的數學模型，照此模型對工件進行立體重構；識別出工件的各種檢測信息，提出一種對公差信息進行描述的數學模型，井與三維立體相結合，生成有檢測意義的三維實體；根據三坐標機的測量系統，生成相應的檢測規劃；另一方面，作為cmis的一部分，應具有與cad cam軟體之間的數據交換功能，本文還開發了iges輸出介面，採用opengl繪制三維空間曲面，向用戶展示其全面信息。
  6. Finally, when a 00, the limt situations for the developable modeling and surface development above are all disscussed and compared with those on bezier curve. the programs of the above methods und algorithms are developed, which shall be used in the system of developable surface modeling for cad / cam

    Zier曲線上可展曲面造型方法和曲面展開演算法，均給出了當0時的極限，並與b ? zier曲線的情形作了分析和比較。這些方法和演算法均應用於實例在計算機上得以實現。
  7. Pinholes are the defects often found in cam surface layer after re - melted and chilled

    凸輪面針孔是凸輪軸重熔淬火工藝容易產生的質量問題。
  8. If the taper support ribbed surface and the cam cam rollers have not sleek, will be for damage to the division

    如果錐度支撐肋的凸輪表面和凸輪滾子之間有不滑順情況，則會損害到分割器。
  9. In this paper, based on the wear theory, the wear mechanism and the main disable forms are discussed. the more appropriate archard wear calculation model is selected. the cam ' s wear model in view of the influence of surface topography is established

    本文以磨損理論為基礎探討了內燃機凸輪挺柱的磨損機理及主要失效形式，選擇了比較合適的archard磨損計算模型，建立了考慮表面形貌的凸輪磨損計算模型，得到凸輪磨損的數值模擬模型。
  10. Several key techniques of carving and milling machine cnc system are deeply studied they include : the transformation, data rebuild and interface design of huge volume nc program produced by cam ; the algorithm of cubic parametric spline pre _ interpolation and high speed real time interpolation in the cnc system, which. will gain a much higher surface precision and cutting speed ; methodology and algorithm of movement velocity acceleration control on a real time forecast _ and _ prejudge basis is designed. therefore, a smooth movement is insured. the shake and noise problem caused by non _ uniform pules for driving stepping or servo motor is solved by an improving algorithm to generate uniform pules

    同時，本文對基於統一的pc平臺的雕銑機數控系統中的幾項關鍵技術進行了深入的研究，包括： cam生成加工程序的傳送、接收、讀取及其加工鏈表的生成和實時重構；對cam生成的離散數據進行三次參數樣條插值和基於累加弦長的三次參數樣條插補控制，保證加工工件表面的精度和光順性；設計具有「前瞻」功能的自動升降速控制方法，保證加工過程的平穩性；通過脈沖均勻化，有效地解決加工過程中因為脈沖不均勻而引起的震動問題。
  11. The contact freeform surface meaurement system the authors are developing is introduced in this paper, it is the application of cmm in the reverse engineering of part. the components of its software and hardware are analyed. under the circumstances of cad modelis unknown, somecirtical problems are studied such as the measurement points adaptive localization, the measurement path, layout and measurement data disoposal etc. based on measuring the curved surface of the cam, the scaning software have be designed in measuring the curved surface in cmm. the cmm ' s data can transfer to cad / cam system

    分析了其軟硬體的組成，並對在cad模型未知的情況下，測量系統軟體中的一些關鍵技術，如測點的自適應分佈、測量路徑的規劃和測量數據的處理方法等作了研究。並以凸輪輪廓曲線為例，編制了相應的曲線面輪廓掃描軟體，並使三坐標測量機的測量數據轉換為cad cam能接受的圖形信息格式。
  12. Abstract : the basic theory and characteristics of superfinishing technology using abrasive stones are introduced. its application to the surface finishing and modification is highlighted for bearing rollers, cam & amp; followers and piston rings in locomotives and vehicles, broadening the application fields of superfinishing

    文摘:介紹了油石超精技術的基本原理和特點. & 01 ;對其在機車車輛軸承、凸輪和活塞環光整及修形加工中的應用作了詳細闡述，拓展了該技術的應用領域
  13. A auto - focusing compensation machine is studied with double - deck guideway and double - deck cam, the double - deck machine ' s synchronous operation is able to compensate the deviation of focus, and ensure the opticus being fixed on the ccd ' s receiv ing surface during photography

    研製出一種雙層導軌、雙層凸輪的自動調焦補償機構，兩層機構同時工作能夠正確的補償光機系統因環境條件變化和照相距離變化導致的離焦量，使相機在照相過程中始終保持光學焦面穩定在ccd接收面上。
  14. Curve and surface fairness are the important problem in cad / cam

    在cad cam中，光順問題是經典問題之一。
  15. Blending surface plays an important role in cad / cam, and the problem of blending surface with high - degree geometric continuity is a key question. the paper concerns how to construct a blending surface between two surfaces

    過渡曲面在cad cam技術中具有十分重要的地位，研究高階幾何連續過渡曲面的構造理論與方法是當前的研究熱點之一。
  16. The consequence of computation indicated above method not only can approach turbine blade surface accurately but also can be provided for extend and intersection while the precision can be controlled. it realized anticipated goals of the application of turbine blade and engineering exercises. thus, it provide the foundation to the reconstruct and optimize design of turbine blade as well as the cam of turbine blade

    算例結果表明，上述方法不僅可精確擬合混流式、軸流式水輪機轉輪葉片，而且還能對葉片進行求交、延展運算並控制精度，實現了nurbs曲面造型技術應用於水輪機葉片設計和工程實際的預期目標，為水輪機葉片的改型設計和優化設計、水輪機葉片的計算機輔助製造打下了基礎。
  17. Error controls of surface cam

    編程的誤差控制系統
  18. The cam - follower is the main mechanism of the engine that carries out a series of accurate motions. its mild wear may gradually worsen the contact conditions. the probability for surface fatigue will then increase due to changes in the surface topography

    凸輪?挺柱是內燃機中實現一系列精確動作的主要機構，其磨損會使接觸條件惡化，由此產生的表面形貌的變化會使表面疲勞的概率增加，可能會對部件產生破壞性的影響，進行凸輪機構的摩擦學設計對提高內燃機的運行性能和延長使用壽命十分重要。
  19. The reverse engineering ( re ) is more and more used in machine, rapid prototype, sculpture, physic, topography etc. it has attracted considerable research attention in cad / cam. its core subject is the reconstruction of sculptured surface

    逆向工程廣泛應用於機械、快速原型、雕塑、醫學、野外地形等領域，是目前cad / cam研究領域的熱點問題，而復雜曲面的重建是逆向工程研究的核心問題之一。
  20. Taking the meshing theory of conjugate curved surface as a foundation, utilizing array method of rotation transformation of vector, the meshing equation and contour surface equation of conical cam mechanism with swinging conical roller follower were analyzed and derived, and the calculation formula of pressure angle and synthetic curvature of the mechanism was presented, thus laid a solid theoretical foundation for enhancing the machining accuracy of conical cam, improving its processing method and achieved the integration of cam cad / cam

    摘要以共軛曲面嚙合理論為基礎，運用矢量的旋轉變換矩陣法，分析並推導了圓錐滾子擺動從動件圓錐凸輪機構的嚙合方程和廓面方程，並給出了機構的壓力角和綜合曲率的計算公式，為圓錐凸輪加工精度的提高，改進其加工方法，實現凸輪cad / cam一體化奠定了堅實的理論基礎。
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