CAJ | 학술논문

目的：为使零件在设计阶段实现公差的自动分配，研究线轮廓度在计算机中的表达模型。创新点：1.提出一种新的构建线轮廓度公差T-Map图的方法；2.用运动学等效的方法表示理想轮廓公差域的允许偏差。方法：1.将零件轮廓分解成多段，然后分别为每段生成一个实体模型T-Map（图6和7）；2.利用布尔交运算将所有分段 T-Map 合成一个完整线轮廓度的T-Map（图8）；3.以弧形短槽为例，演示创建线轮廓度的方法步骤。结论：将弧形短槽轮廓分成多段，先实现每一段的T-Map，再利用布尔交实现整体线轮廓度公差的T-Map图，证明该方法在构建任意轮廓的线轮廓度公差上的有效性。
목적：위사령건재설계계단실현공차적자동분배，연구선륜곽도재계산궤중적표체모형。창신점：1.제출일충신적구건선륜곽도공차T-Map도적방법；2.용운동학등효적방법표시이상륜곽공차역적윤허편차。방법：1.장령건륜곽분해성다단，연후분별위매단생성일개실체모형T-Map（도6화7）；2.이용포이교운산장소유분단 T-Map 합성일개완정선륜곽도적T-Map（도8）；3.이호형단조위례，연시창건선륜곽도적방법보취。결론：장호형단조륜곽분성다단，선실현매일단적T-Map，재이용포이교실현정체선륜곽도공차적T-Map도，증명해방법재구건임의륜곽적선륜곽도공차상적유효성。
For purposes of automating the assignment of tolerances during design, a math model, called the Tolerance-Map (T-Map), has been produced for most of the tolerance classes that are used by designers. Each T-Map is a hypothetical point-space that represents the geometric variations of a feature in its tolerance-zone. Of the six tolerance classes defined in the ASME/ANSI/ISO Standards, profile tolerances have received the least attention for representation in computer models. The objective of this paper is to describe a new method of construction, using computer-aided geometric design, which can produce the T-Map for any line-profile. The new method requires decomposing a profile into segments, creating a solid-model T-Map prim-itive for each, and then combining these by Boolean intersection to generate the T-Map for a complete line profile of any shape. To economize on length, the scope of this paper is limited to line-profiles formed from circular arc-segments. The parts containing the line-profile features are considered to be rigid.