電腦輔助製程之自動定位規劃與應用

Automatic Setup Planning and Its Application for Computer Aided Process Planning

胡英傑(Ying-Chieh Hu)

指導教授 ： 尤春風

國立臺灣大學/工學院/機械工程學研究所/碩士(2006年)

https://doi.org/10.6342/NTU.2006.00908

摘要

本研究基於圖論基礎實作自動定位規劃系統。以混合圖的概念表達工件上各特徵間的幾何關係，並提出系統化的邏輯演算方法加以簡化。其中公差關係為混合圖中決定定位順序的重要關鍵，本文以綜合公差因子對幾何公差與尺寸公差進行一致性的比較。最後根據圖形的追蹤推導工件由胚料至加工完成的製程定位順序。

當定位順序決定後，繼續將電腦輔助製程規劃系統分為內外兩部份進行模組間的整合。對內定位模組對機器、刀具與夾具設計模組溝通，以滿足工件所要求之加工精度為原則，選擇最節省成本之機器與刀具。搭配夾具設計模組的規劃結果，完成一套完整之創成式電腦輔助製程規劃系統。對外與PDM系統建立連結關係，補足產品在PDM系統中之製造資訊。

本文最後提出三個範例驗證系統，完成製程規劃並輸出完整之製程單。

關鍵字

定位規劃 ； 電腦輔助製程規劃 ； 圖論 ； 公差 ； 混合圖

並列摘要

This research based on the graph theory to implement the automatic setup planning system. The concept of hybrid-graph used to express the geometric relationship with different features. To simplify the hybrid-graph, a series of systematic logic algorithms were proposed. Tolerance relations played a key role in resolving setup sequences, and tolerance factor introduced to normalize the geometric tolerance and dimensional tolerance. Finally, the result of machining sequence from row material to finished product can be generated by traverse the graph.

After finishing setup planning, CAPP system will be integrated from the viewpoint of the inner and outer module. By communicating with machine module, tool module and fixture module internally, setup module follows the principle of machining precision to get both the machine and the tool can be minimal cost and maximum suitability. Accompanying the result of fixture planning, a generating CAPP system has been finished. CAPP system also complemented PDM by making connection with it.

This paper proposed three examples to verify the CAPP system, finished process planning and exported process sheets.

並列關鍵字

setup planning ； CAPP ； graph theory ； feature ； tolerance ； hybrid-graph

參考文獻

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