近年來許多醫療器材、航太零組件、汽車元件及模具均具有高精度及複雜的空間幾何形狀的需求，使得五軸加工日趨重要，但也因為五軸工具機的自由度大及精度較高，機器承受不起碰撞，所以五軸工具機在執行切削工作前都需要先做切削模擬之測試。有鑑於此，本論文設計出可供機構運動模擬之五軸工具機模型，並利用此機器模型來執行NC刀具路徑之電腦模擬。首先由Pro/ENGINEER設計出五軸工具機的機構模型，並利用Pro/ENGINEER之Pro/Toolkit及Visual C++之MFC為核心程式來開發輔助工具，經由輔助工具讓使用者了解到五軸工具機各軸機構模擬之情形，接下來由PowerMILL設計工件模型及五軸加工NC碼，再經由VERICUT NC切削加工模擬軟體整合前兩者之資料並建立刀具資料後，即可開始進行五軸切削模擬，透過這樣的方式將Pro/ENGINEER、PowerMILL及VERICUT三種軟體中的五軸工具機資料整合為一，讓使用者可以了解五軸工具機的機構運動模擬之情形及切削模擬之結果，也讓使用者在NC加工程式設計完成後可以更簡易、更快速的得到切削模擬之結果。

In recent years, many medical equipments, aerospace components, automobile parts, and moulding devices require a high degree of precision and very complex geometries. This has made five axis machining increasingly important. Due to higher degrees of freedom and better precision associated with five-axis machines, they are susceptible to impacts. Therefore, prior to commencement of the cutting process, five-axis machines must first undergo cutting simulations as a test for impacts. In light of this, this study proposes a five-axis machine model that is capable of motion simulation, and applies this model to the simulation of an NC tool path. A model of the five-axis machine is first developed in Pro/ENGINEER. Supporting tools are also developed using core programs including Pro/ENGINEER’s Pro Toolkit and MFC in Visual C++. With the supporting tools, users can understand the modelled behaviours of each axis in the machine. PowerMILL is used alongside the design workpiece model and NC program. Once information in both models is combined using NC cutting simulation in the software VERICUT, the five-axis cutting simulation can begin. In this way, model data for five-axis machines in all three software programs (Pro/ENGINEER, PowerMILL, and VERICUT) is integrated to provide users with an understanding of motion simulation of five-axis machines and the results of cutting simulation. The designed NC program facilitates easy and rapid delivery of the simulation results to users.

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