摘要
针对数控皮革裁床在进行样片排版时,容易出现由于样片扩展轮廓错误而引起样片间隙过小,导致刀具过切的问题,提出了一种新的算法,即将旋转法和直线过渡法结合以解决样片的扩展轮廓描述。用平移和旋转法将样片轮廓的每个非光滑转接处的复杂情形简化为几类一般的情形,并把样片的二维扩展轮廓算法归纳为直线接直线、直线接圆弧、圆弧接圆弧3大类。通过对各外扩图元之间的转接情况进行几何分析并对各转接点位置进行精确计算,以实现样片扩展轮廓的正确描述。应用结果表明:该算法简单可靠,所得样片扩展轮廓准确无误。该算法具有很强的实用性。
Aiming at the wrong interval of samples and the over-cutting by the wrong outlines after the sample layout of CNC leather cutting machine, a new algorithm was put forward to describe the outlines, which contains the rotation method and the linear transition method. The rotation method made the situation of every non-smooth transfer place into some kinds of situation. The two-dimention extension outline algorithm of sample outline of layout problems were simply summarized as straight line to straight line, straight line to circular radian and circular radian to circular radian. Through the precise calculation of the connecting points between extended primitives, the algorithm correctly described sample outlines. The applied results indicate that the algorithm is simple and reliable, and the obtained sample outlines are accurate.
出处
《轻工机械》
CAS
2016年第6期5-9,共5页
Light Industry Machinery
基金
国家自然科学基金项目(51305404)
关键词
数控皮革裁床
样片排版
轮廓算法
平移法
旋转法
CNC leather cutting machine
sample layout
outline algorithm
linear transition method
rotation method
