摘要
基于STL(标准模板库)模型投影轮廓的连续切割技术对EPS(聚苯乙烯)建筑模型加工进行研究,提出了分组矩阵切片算法,并在每组中建立局部拓扑关系提高分层切片的效率,结合截面轮廓求并算法,应用于投影轮廓连续切割技术,解决了非对称曲面在加工过程中与热丝的干涉难题。开发出基于STL模型投影轮廓轨迹的自动编程系统,以此作为软件平台结合五自由度建筑初模的数控热切割加工装置的硬件设施,实现了建筑模型加工。实验结果表明,该系统能高效、准确加工出所设计的建筑模型。
The continuous cutting technology to architectural model with EPS( Expandable Polystyrene) is provided. To solve the interference problem between the outline surface and hot cutting-wire in the cutting process,the STL( Standard Template Library) model projection profile method is adopted. The slicing algorithm based on the grouping matrix and the union of slice contour algorithm is proposed to continuously cut the outline model. The local topological relations in each group are established to improve the efficiency of slicing cutting. The automatic programming system with Visual C + + 6. 0 based on the STL model is developed,which used the 5-degrees of freedom CNC thermal device to cut the model. The experiment shows that this technology can cut the outline architectural model efficiently and accurately.
出处
《机械科学与技术》
CSCD
北大核心
2015年第3期429-433,共5页
Mechanical Science and Technology for Aerospace Engineering
基金
国家自然科学基金项目(51375361)
陕西省科技厅工业攻关项目(2012K09-15)
西安市科技局项目(CXY1349(3)资助
关键词
STL
连续切割
分组矩阵
轮廓求并
algorithms
automatic programming
continuous cutting technology
cutting
degrees of freedom(mechanics)
efficiency
experiments
grouping matrix
matrix algebra
STL
topology
union of slice contour
