Automatic Generation of Assembly Sequences

自动生成装配序列

• 批准号: 8708059
• 负责人: Lucy King
• 金额: $ 1.2万
• 依托单位: Lawrence Technological University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-10-15 至 1988-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8708059&HistoricalAwards=false
• 关键词: Automatic; Generation; Assembly; Sequences

The trend towards automation in manufacturing is expanding fast. Machine interfaces, intelligent controls, CAD (computer aided design) packages and computer aided process planning are increasing. There is a greater demand for an automatic generation of assembly sequence to match and link these growing areas. Process planning requires the expertise of experienced process engineers. These engineers are gradually reaching retirement age and young engineers who have not yet gained the experience are bombarded by the demands of new technology. The automatic generation of assembly sequence involves (a) the extraction of constructive solid geometry and boundary representation, (b) determination of the type of each assembly step, (c) the type of tools required, (d) the size of each tool and its working envelope, and (e) check for collision, obstruction and clearance during assembly. Once the assembly steps are determined, a cost optimization approach can be used to generate possible assembly sequences. The engineer can then determine, according to his/her local assembly environment, an optimal assembly sequence. Heuris algorithms will be generated for these decision processes. The result is an expert support system which enables the fast transfer of 3-D CAD (computer aided design) parts and assembly data into a set of possible assembly sequences to facilitate the process engineer to speed up the implementation of automated assembly systems.

制造业的自动化趋势正在扩大 快了 机器接口、智能控制、CAD（计算机辅助 设计）软件包和计算机辅助工艺规划正在增加。 对自动生成装配体的需求越来越大 序列来匹配和连接这些生长区域。 工艺规划 需要经验丰富的工艺工程师的专业知识。 这些 工程师逐渐达到退休年龄，年轻工程师 那些还没有获得经验的人被要求轰炸， 新技术的影响。 装配序列的自动生成包括： 构造实体几何和边界提取 （B）确定每个组装步骤的类型， (c)所需工具的类型，（d）每个工具的大小及其 工作包线，以及（e）检查碰撞、障碍和 装配时的间隙。 一旦确定了组装步骤， 可以使用成本优化方法来产生可能的 装配序列。 然后，工程师可以确定，根据 他/她的本地装配环境，最佳装配顺序。 将为这些决策过程生成Heuris算法。 其结果是一个专家支持系统，使快速 3-D CAD（计算机辅助设计）零件和装配数据的传输 一系列可能的组装顺序来促进这一过程 工程师加快实现自动化装配 系统.