特徵為基描述工件之數控工具機刀具路徑的自動產生法

Abstract

刀具路徑的產生是製程規劃的一部份，傳統上，工件程式設計師是 依據 點、面、及實體之工件設計理念來定義刀具路徑，不僅費時且易因程式設 計師之背景差異，造成工件之設計無法標準化。因此本論文提出一套刀具 路徑自動產生法，針對特徵為基之工件設計觀點，配合加工作業順序及切 削條件等資料，透過電腦自動計算刀具路徑，並產生數值控制工件程式， 可轉移至任何以 GM Code為輸入之加工機。此外，本論文也提出一套座標 轉換演算法，讓工件在不同機器加工時，能作適當的平移或旋轉，使整個 加工流程具有連貫性。 Cutter path Generation is a major part of the process planning. In tradition, part program designer uses geometric data such as points, lines, surfaces and solids to describe the cutter path. It is not only time-consuming but also difficult to have standard part program design. In this thesis, an algorithm which can automatic generating NC tool ath for feature-based part is presented. Both the operation sequences and the cutting conditions are considered in generating the part program. The generated part program can be passed to any machining center that can accept GM code. Furthermore, a coordinate transformation algorithm which can be used to specify new position and orientation for the workpiece to be continuously manufactured by another machine is also presented in this thesis.