摘要
针对作为网络化可重构生产线底层生产设备网络物理节点的数控设备控制器,分析了目前符合STEP-NC的开放式结构数控系统对分布可重构制造环境的适应性能及需要增强的环节。引入IEC 61499分布式控制机制,通过提高单台设备控制器分布可重构控制能力来提高其对生产线制造环境的综合适应能力。将加工特征作为联系两个机制的桥梁,建立了符合IEC 61499机制的数控设备Device模型。该模型设计了基于轴控制的Resource模型与本地加工功能块为主体的设备柔性控制结构,详细说明了加工事件驱动的各功能子模块的设计方法。该建模方法在四轴控制开发平台上进行了实例应用。
Aiming at Computer Numerical Control（CNC） equipment controller as network physical node of infrastructure level in networked reconfigurable production line,adaptability and enhancement of STandard for the Exchange of Product model data-NC（STEP-NC） compliant open architecture controller for distributed and reconfigurable manufacturing were analyzed.Based on STEP-NC data program,IEC 61499 mechanism was introduced to improve overall reconfigurable control performance.Making machining feature as bridge connecting STEP-NC and IEC 61499,Device model of CNC equipment compliant to IEC 61499 was constructed.Flexible control structure was designed centering on axis control based Resource model and local machining function module,also design method for event-driven major function modules was discussed in detail.A case study for four-axis motion control platform was provided at last.
出处
《计算机集成制造系统》
EI
CSCD
北大核心
2010年第12期2641-2646,共6页
Computer Integrated Manufacturing Systems
基金
哈尔滨工程大学基础研究基金资助项目(019860260702)~~
关键词
分布可重构生产线
STEP-NC控制器
IEC6
1499标准
数控设备
Device模型
功能块
数控系统
distributed and reconfigurable production line
standard for the exchange of product model data-numerical controller
IEC 61499 standard
computer numerical control equipment
Device model
function block
numerical control systems
