A STEP-based machining data model for autonomous process generation of intelligent CNC controller
A STEP-based machining data model for autonomous process generation of intelligent CNC controller
复制标题
基于STEP的智能数控控制器自主流程生成加工数据模型
DOI：
10.1007/s00170-017-1554-9
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发表时间：
2018-01
影响因子：
3.4
通讯作者：
Chengrui Zhang
中科院分区：
文献类型：
--
作者：
Wendan Zhu;Tianliang Hu;Weichao Luo;Yan Yang;Chengrui Zhang
数控控制器作为智能数控机床的关键部件，被期望提供各种智能功能，其中自主工艺规划是最重要的功能之一。然而，目前的加工数据模型不太适合支持此功能。G&M代码直接给出运动和辅助指令，使CNC控制器只是一个执行器。一种新的标准STEP-NC，提供了丰富的语义信息，旨在克服G&M代码的缺点。然而，STEP-NC中规定的数据模型中的信息由于缺乏重要的加工要求而不太适合智能数控控制器自主工艺规划。在STEP-NC模型中，已经包含了由CNC控制器决定的加工策略。也就是说，决策权并没有完全交给控制者。针对这些问题，本文提出了一种基于step的加工数据模型。加工数据模型为ARM，设计为智能数控控制器的加工任务输入。它可以为基于知识库的智能工艺规划功能提供必要的工件信息。考虑到与设计阶段的互操作，加工数据模型采用STEP数据格式。介绍了系统的详细结构和实现方法。为了验证该数据模型的可行性，通过实例提出了符合该数据模型的加工任务生成方法和基于加工任务的工艺方案生成方法。结果表明，符合该数据模型的加工任务可以为数控控制器的自主工艺规划功能提供充分的信息。
As the key component of intelligent CNC machine tool, CNC controller is expected to provide various intelligent functions, among which, autonomous process planning is one of the most important functions. However, current machining data models are not very suitable to support this function. G&M code gives movement and auxiliary instructions directly, making the CNC controller just an executor. A new standard STEP-NC, providing semantically rich information, aims to overcome the drawbacks of G&M code. However, information in the data model specified in STEP-NC is not very suitable for intelligent CNC controller autonomous process planning because of the lack of important machining requirements. Also, in STEP-NC model, machining strategies, which are supposed to be decided by CNC controller, have already been included. Namely, decision right is not totally handed over to the controller. To solve these problems, a STEP-based machining data model is proposed in this paper. The machining data model is an ARM, and it is designed as the machining task input of intelligent CNC controller. It can provide necessary workpiece information for intelligent process planning functions based on knowledge base. With the consideration of interoperation with design stage, STEP data format is used in the machining data model. Detailed structure and implementing method is introduced. In order to verify the feasibility of this data model, generation method of machining task complied with this data model and process plan generation based on the machining task have been put forward through a case. Results show the machining task complied with this data model can provide sufficient information for the autonomous process planning function of CNC controller.
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影响因子：
10.4
作者：
M. Rauch;Raphael Laguionie;J. Hascoët;S. Suh
通讯作者：
M. Rauch;Raphael Laguionie;J. Hascoët;S. Suh
DOI：
10.1007/978-3-642-23860-4_55
发表时间：
2012
期刊：
--
影响因子：
--
作者：
Xianzhi Zhang;Aydin Nassehi;V. Dhokia;S. Newman
通讯作者：
Xianzhi Zhang;Aydin Nassehi;V. Dhokia;S. Newman
DOI：
10.4028/www.scientific.net/amm.127.531
发表时间：
2011-10
期刊：
Applied Mechanics and Materials
影响因子：
--
作者：
Tran Anh Vang;P. Jiang
通讯作者：
Tran Anh Vang;P. Jiang
DOI：
10.1177/0954405415585084
发表时间：
2015-07
期刊：
Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture
影响因子：
--
作者：
Xianzhi Zhang;Aydin Nassehi;S. Newman
通讯作者：
Xianzhi Zhang;Aydin Nassehi;S. Newman
影响因子：
10.4
作者：
Y. Yusof;Keith Case
通讯作者：
Y. Yusof;Keith Case