基于特征集成数控工序的工艺设计平台研究

提出了一种新的集成传统工艺设计和数控工艺设计的综合工艺设计框架，在分析工艺设计任务特征的基础上，将其分解成按顺序执行的一系列子任务，并通过工作流监控各子任务的执行状态．针对现有“工艺卡片”数据的特点，以表头信息、表体信息和脚注三层结构对工艺数据进行存储管理，提高了数据传输的安全性．为了在传统工艺设计中集成数控工序，采用基于特征分类的数控工艺设计方法，很好地解决了传统工艺和数控工序的集成问题，使三维工艺设计与二维工艺设计合而为一，并且有利于三维工艺设计方法的推广和应用．

Feature-Based Framework of Process Planning Integrated with Numeric Control Operations

A novel framework for computer aided process planning is presented, where the whole procedure of process planning is divided into a sequence of stages or subtasks. Analyzing the characteristics of tasks like the requirement of design environment and safety, the browser/server or client/server is applied to the corresponding module so as to speed up the execution of the process planning task and improve the productivity. To communicate the manufacturing documents among different systems, a new data structure with three different segments to define the planning data is presented, and the manufacturing information can be transformed and stored as special format files to transfer the process planning documents over the internet. In addition, a special browser is developed for browsing the specified format files. Some operations on the plan- ning procedure such as checking and verifying processes, can be carried out off-line.