隨著電子技術的發展，機械式凸輪漸漸被電子式凸輪取代，在伺服系統更是可以利用伺服控制技術驅動馬達的轉動達到凸輪機構中的同步與追蹤的運動，並且在伺服系統與計算機平台結合的電子凸輪軟體可以增加運動曲線生成的靈活性。本文首先探討電子凸輪的研究背景，並且與機械凸輪的優缺點比較。藉由已發展成熟的凸輪運動曲線規範，本文介紹常見的凸輪運動曲線並且在飛剪及沖床的加工運動模式進行曲線規劃的分析。
我們會針對電子凸輪運動進行各種的曲線規劃，其中曲線包含：等速曲線(直線)、等加速度曲線(二階多項式曲線)、五階多項式曲線、簡諧運動曲線、擺線運動曲線、修正正弦曲線、修正梯形曲線、諧波組合曲線、Cubic-spline、S-curve修正梯形速度曲線。由上敘述中所提及的路徑曲線皆為凸輪運動常見的路徑曲線，並且在工業上也常將以上述提及的曲線組合成一條複雜的運動軌跡。接下來我們會針對飛剪機構與伺服沖床加工模式所需要用到的運動曲線以電子凸輪的方式進行曲線規劃，結合電子凸輪概念建立凸輪表於程式軟體中並產生曲線進行分析與討論。

With the development of electronics technology, the mechanical cams are gradually replaced by the electronic cams. In servo systems, the electronic cams can be used with the servo control technology to drive the motor in order to achieve the synchronizations and the tracking motions of the cams. Besides, the electronic cam software can enhance the flexibility of the motion curve design through combining the servo system and the computer platform. This thesis studies the research background of electronic cams and then compares with mechanical cams to show their advantages and disadvantages. In addition, the common curves of cam motions will be introduced. Furthermore, this study uses the electronic cam system to design and analyze the motion curves of a flying shear machine and a punching machine.
This study mainly focuses on the trajectory planning of electronic cam curves, including a constant velocity curve (a straight line), a constant acceleration curve (a 2nd-order polynomial), a 5th-order polynomial, a simple harmonic motion curve, a cycloidal motion curve, a modified sinusoidal acceleration curve, a modified trapezoidal acceleration curve, a cubic-spline curve, and a S-curve (a modified trapezoidal velocity curve). These curves are mostly applied to the industry. Besides, electronic cam software is developed by using cam tables, and then the software is used to generate the motion curves of a flying shear machine and a punching machine for further analyses and discussions.

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