物件導向法則式電腦輔助製程規劃系統

Abstract

在電腦整合製造系統中，電腦輔助製程規劃系統扮演著極為重要之角色， 但由於製程環境之多變性，再加上學理與實際加工方法間之差異，使其未 能完全地發揮應有之功能。因此如何使系統真正地符合各製程環境所需， 並且具有未來擴充及修改之彈性，是項非常重要之課題。本研究係針對旋 轉件之切削加工作業，採用物件導向觀念，並以專家系統為介面，構建相 關之製程知識法則，以發展一套電腦輔助製程規劃系統。文中將提出一套 加工作業之工程劃分演算法，並同時考慮加工機器與刀具之選擇問題，求 出適當之製程規劃，以符合實際加工之考量。 Computer Aided Process Planning(CAPP) system plays a major role in a Computer Integrated Manufacturing(CIM) system. Because of the variety of manufacturing environments and the existing difference bewteen theory and practice, it makes the current CAPP system cannot entirely serve as the desired functions. Hence, how to meet real machining process and how to flexibly extend and maintain in the future are very important for a CAPP system. In the thesis, a new object-oriented rule-based CAPP system for convenient extension and maintenance is proposed. The proposed CAPP system allows users to construct their own process rules through an expert system. An algorithm which can determine the suitable machining operations according to the information of the parts, available machining centers and cutters is developed such that the proposed system will meet the actual requirement of the machining process much more. Current implementation of the proposed CAPP system is for the rotational parts.