連桿式伺服沖床是由伺服馬達與連桿機構所組成，具高機械利益與可靠度，並可利用變轉速輸入的概念來達成不同類型加工目的之功能。然而變轉速的概念需搭配適當的伺服馬達與控制系統的調控才得以實現，且在整體機構作動時仍需考慮其動平衡性能方具有實用性。本研究針對變轉速伺服沖床設計時的三個重要設計要素，包含有機構運動設計、動平衡設計、以及馬達與控制系統，進行研究與探討其整合設計的架構。
首先建立同時考量轉速函數與連桿尺寸為設計參數下的機構運動設計的理論基礎與設計模式，並利用圓盤配重的方式搭配轉速函數的設計來提昇沖床機構的動平衡特性。接著導出變轉速伺服連桿機構實際運轉時轉速控制機制以及以馬達為動力源驅動連桿機構的運作模式，並由伺服馬達的驅動架構來提出可適用於變轉速伺服沖床的控制架構。此外，為使設計時動力源需求符合現實，亦探討了變轉速連桿機構運轉所需的伺服馬達選用原則。面對此一需兼顧多面向多類別需求的變轉速伺服沖床設計問題，本研究針對變轉速伺服連桿機構提出了系統化的整合設計方法使得在設計時即能同時兼顧連桿尺寸合成、動平衡設計、以及控制器設計的需求。此外亦藉由多階層最佳化設計方法可將複雜系統分解與協調整合的特性將其應用至變轉速伺服沖床的三種整合設計問題。最後經由設計實例的說明闡述本研究所提整合設計方法具可行性。
本研究所提出的整合設計概念與模式，經由設計實例的探討顯示，可有效的解決變轉速伺服沖床在具有多面向設計需求與限制的整合設計問題，且獲得一可行的整合設計方案。

A servo press consisting of a servomotor and a linkage mechanism, has the benefits of high mechanical advantages and reliability. It also performs multipurpose tasks via the concept of the variable input-speed. However, this concept should be implemented by a suitable servo motor and control system. And, it is necessary to consider to dynamic balance in practice. Therefore, this study aims at the integration of the three important design factors for the variable input-speed servo presses, including kinematic design, dynamic balancing design, and motor and control system.
Firstly, the design process for the kinematic requirements with input-speed function design and dimensional synthesis is established. And, the dynamic balancing characteristic improvement is achieved by the counterweight placement and input-speed function design. Then, the mathematical dynamic behavior model is derived to realize the relationship among the torque generated by the motor, the motion of servo linkage, and the control algorithm. The servo motor control structure is introduced and a feasible control structure is proposed to satisfy the requirement of capricious torque for the variable input-speed presses. The guideline to select a suitable motor for the specific variable input-speed function is provided. To solve the design problem for the variable input-speed servo presses, with more than two scopes of design variables and constraints, an integrated design process is proposed. The dimensions of the links, the counterweights, the input-speed trajectory and the controller parameters are integrated into a systematic design approach to satisfy both mechanism and control design requirements simultaneously. Then, the multilevel optimization technique, including decomposition and coordination process, is applied to the three integrated design issues for the variable input-speed servo presses. Finally, application examples are provided to illustrate the feasibility and for comparison discussions.
In conclusion, the integrated design concept and process proposed in this study are verified to solve the design problem with various requirements and constraints by the investigation of the design examples. And, reasonable solutions for the integrated design of the variable input-speed servo press are obtained.

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