Teleservice engineering in manufacturing: challenges and opportunities

This position paper introduces the concept and framework of a teleservice engineering system for the life cycle support of manufacturing equipment and products. The proposed system involves the fundamental methodologies that deal with machine performance assessment techniques, self-maintenance machine mechatronics, and remote diagnostics. In addition, a concept on digital service enterprise will be introduced. These methodologies will support remote users and facilities to ensure the performance of consumer products, manufacturing equipment, quality of operations, and productivity of the plant, in particular, for those users and facilities located in remote locations. Finally, research challenges and opportunities are discussed.     

基于网络的注塑机液压远程监控系统研究

利用AMESim仿真软件实现注塑机液压系统的仿真模拟,并运用图形化编程语言LabVIEW作为搭建Web服务器的工具,两者相结合搭建了液压系统监控系统,通过内网穿透技术实现真正意义上的远程监控,旨在解决实际维护时人员不在现场,维护效率低,从而影响生产进度的问题。测试结果表明：所设计的注塑机远程监控系统性能可靠稳定,可实现无人值守,对注塑机的出售和升级换代起到非常积极的作用。     

现代制造设备维修监测策略及再制造技术

对机械制造过程中设备维修检测策略进行了论述,其内容包括：建立与设备技术特性相适应的监测诊断体系统;提高监测维修人员业务素质;建设与单位设备、财力相适应的维修检测环境和硬件平台;综合运用各种先进检测与诊断技术。对先进表面工程、先进加工技术、数字控制技术在机床再制造中的应用进行了介绍。为机械制造企业建立具有本单位特色的设备监测维修体制和设备再制造工程提供了参考。     

Integrated Virtual Manufacturing Systems for Process Optimisation and Monitoring

The implementation of an Internet-based Virtual Manufacturing facility for the development and optimisation of new manufacturing processes is presented. The facility integrates advanced process simulation software, a remote machine monitoring system and multimedia technologies to realise a virtual environment for manufacturing process optimisation. Utilising physics-based process simulations, process parameters and operational sequences are evaluated and optimised with respect to desired product features. Having optimised the operation, a prototype of the part can be created at the facility. During prototyping, process parameters are monitored in real-time. A Case Study is presented, where a 3-axis milling operation is defined, optimised and executed using the facility.     

基于VB的分布式数控机床远程监控与诊断系统研究

文章在分析了分布式数控机床远程监控与故障诊断系统需求的基础上,详细地介绍了远程监控与诊断系统的模型,以及实现过程中的关键技术,如上位机链接通信,远程通信等.     

虚拟数控机床仿真系统的研究与实现

基于虚拟现实技术的虚拟制造是实际制造在计算机上的本质体现。本文基于虚拟制造的先进制造思想,讨论了虚拟数控机床仿真系统的结构及系统各模块实现的关键技术,并利用Visual C＋＋、Openlnventor为开发工具实现了虚拟数控机床仿真系统,该系统拥有虚拟装配、虚拟加工及刀具温度场的仿真等功能。以上海机床厂生产的CK6430数控机床为应用实例,验证了该仿真系统的正确性。最后提出了虚拟制造的发展方向。     

Simulation and verification of parametric numerical control programs using a virtual machine tool

A parametric computer numerical control (CNC) program was developed to make a test complex surface on a vertical milling machine equipped with an external fourth rotational axis. Parametric programming was used in order to get higher flexibility of the manufacturing process. The ball-end milling process was simulated and verified in a virtual model of the machine tool developed with the module integrated simulation and verification of the product lifecycle management software of Siemens NX7^®. After that, the real process was carried out on the shop floor to machine the test surface. This demonstrates that the virtual machine tools are an effective resource to simulate and verify the performance of machining processes controlled by CNC parametric programs. The possibility of accurately simulating the parametric CNC program reduces the risk of its implementation and enables a more frequent use of this efficient feature of contemporary CNC machine tools.     

齿轮加工数控系统监控技术的研究

在齿轮加工的过程中,为了便于操作者实时了解机床运行状况,对齿轮加工的监控系统进行了研究。分析齿轮加工数控系统监控模块的总体框架,将监控系统划分为以下3个模块:在齿轮加工图形监控模块中,从轨迹仿真和跟随误差监控方面进行分析和实现;在报警信息监控模块中,对报警信息监控设计、实现和自诊断进行分析和实现;在机床状态监控模块中,详细分析了其实现流程。     

Haptic Environment for Designing Human Interface of Virtual Mechanical Products

For efficient and high-quality design of mechanical products, it is now possible to use virtual product models as a basis for functional simulation and verification. However it is not easy to evaluate human operational interfaces of such virtual products only by graphical interfaces. In this paper, a method is proposed to simulate human operational interfaces by use of generic haptic devices. Based on behavioural simulation of virtual product models, appropriate information for haptic interaction is generated, and machine operational interfaces are simulated by use of generic haptic devices. For evaluating the effectiveness of the proposed method, assessment of virtual mechanical switching operations has been performed.     

基于LabVIEW和S7-300 PLC的液压机监控系统设计

塑性加工过程中对各种成形参数进行实时记录和监控,对冲锻工艺的研究以及成形数值模拟时各阶段参数对比有着重要的意义。运用图形化编程语言Lab VIEW作为上位机软件开发工具,利用计算机的强大计算功能和良好的交互性能,与西门子S7-300 PLC及其采集模块相结合构建监控系统,无需配置采集板卡即可实现对冲压工艺状态信息的实时监控。运用OPC技术实现了Lab VIEW与PLC的通信,实现了运用上位机对液压机冲压试验过程的实时监控。实际运行结果证明:该系统运行稳定可靠,能够对液压机的位置、速度、压力等数据进行实时采集、监控、数据导出记录以及系统报警等任务。     

智能化远程图像监控系统的研究及其应用

文章介绍了基于虚拟局域网的远程智能图像监控系统的原理及其实现方法,对图像监控远程实现时要考虑的关键技术进行分析,最后,结合分布式制造系统这一实例,着重阐述了组播技术在智能化远程图像传输中的新运用,并验证了其可行性.     

基于5G通信的数控机床智能监控与诊断系统设计

针对目前数控机床智能监控水平较低、智能化不足的问题,提出基于5G通信的数控机床智能监控与故障诊断系统。该系统以高性能STM32为硬件核心,搭载AliOS Things嵌入式操作系统实现机床电机工作电流、电压、温度和振动信号的实时监测;再提取信号时频域特征,进行故障状态识别,通过5G通信智能网关将异常状态数据上传到远程智能监控服务平台。该平台还能下发指令给监控系统,提示并辅助工作人员对存在故障风险的数控机床进行及时维护。经测试,该系统能够实现高并发海量数据的采集与高速传输,5G通信传输速度在500 Mb/s,传输时延在20 ms以内,平均数据丢包率在2%内。测试结果表明该系统性能稳定可靠,在满足数控机床智能监控同时,为数控机床设备的智能升级提供技术方案。     

智能装备和智能工厂的远程运维平台应用方案

远程运维作为一种新的智能制造以及服务模式被提出来,已经有了近五年的发展.在这五年中涌现出了各种以解决自己产品售后服务以及后市场管理的服务平台.本文介绍了一种基于设备管理的智能装备和智能工厂远程运维的平台解决方案,其功能主要为设备资产台账管理、维修管理、保养管理、巡检管理、备件管理以及实时运行管理.其中运行管理分为工况监...     

现场总线在基于Web的CNC远程监控中的应用

对通过网络实现CNC的远程监控进行了有意义的研究，建立了一种使用户通过浏览器即可对远程的数控机床进行监控、完成加工任务的系统，讨论了CAN总线的结构特点及其在该监控系统体系结构中的作用，最后以实例说明了本监控系统中CAN通讯功能的具体实现。     

虚拟数控机床仿真系统的研究

虚拟机床是随着虚拟制造技术的发展而提出的一个新的研究领域,可以实现现实机床加工的全部功能,可以代替真实机床进行操作实训,也可用于仿真和评估各加工过程对产品质量的影响。文章在Open Inventor平台上,利用Visual C 软件,实现了虚拟机床仿真系统,该系统采用三维场景技术实现了虚拟数控机床仿真场景的绘制,并在此基础上实现了虚拟装配、切削仿真及工程分析等功能。     

数控机床健康诊断图形化动态交互平台的开发

为实现对数控机床智能化的状态监测与故障诊断,通过对数控机床健康诊断系统分析模型与交互特性的分析,根据数控机床故障类型与结构特点,利用Python开发一个图形化交互的数控机床健康诊断系统的动态交互平台,详细设计了系统的总体架构、数据采集模块、数据处理模块、诊断服务模块、人机交互界面。该平台可实现数控机床的动态监控、故障分析、状态数据显示及信息的发布与预警功能。     

基于SDK通信接口的工业机器人远程监控系统设计

基于IRC5控制器的PC SDK通信二次开发接口,设计了一种局域网络下C/S架构的工业机器人远程监控系统。利用RobotStudio软件搭建ABB工业机器人压铸虚拟工作站,利用Winform软件在.NET平台下编写远程监控程序,通过与工业机器人虚拟工作站的连接,验证了远程监控系统的有效性。仿真结果表明:该系统可实现工业机器人控制器监控、访问权限管理、运行数据获取、I/O信号读写、日志查询和程序编辑与控制等功能,可大幅降低工业机器人远程监控功能的开发难度,为工业机器人远程监控系统的快速开发提供了解决方案。     

数控激光机床割缝筛管加工仿真系统的开发与研究

描述在Visual C 6.0开发平台上,基于OpenGL的利用激光切割割缝筛管的仿真实现方法.通过在数控系统的用户界面简单地输入加工控制参数,实现了数控系统的自动编程,并逼真地实现了三维图形显示和加工过程的三维动画仿真,同时动态显示激光切割过程.     

企业联盟环境下的设备远程服务与故障诊断

从企业资源与服务共享、知识集成与创新的角度,提出扩展企业联盟的概念及模型,运用Web服务思想,构建扩展企业联盟环境下基于公共服务平台的远程服务系统.使用层次分析方法,以低成本、高质量、短时间、节能、环保等为目标约束准则,研究系统工作过程中服务的组织和调度方法,在印刷设备的故障诊断中取得了良好的应用效果.     

Optimization of multi-stage closed-die forging processes by coupled simulation of the machine and the forging processes

The use of finite element analysis in the development of closed-die forging processes is widely established in industry. However, the simulated and the real workpiece dimensions differ from each other in a significant way, as the interactions between the forging process and the production machine are not adequately considered in the simulation. As a result, multi-stage dies in particular often need to undergo an experimental time-consuming optimization process on the production machine. In this paper a method is presented that allows the coupling of the forging simulation with external machine tool simulation systems and nonlinear-elastic press models in order to consider the interactions between the process and the machine, and to improve the accuracy of the forging simulation. This method of coupled simulation was integrated into a software tool and may be used for single-stage as well as for multi-stage processes in closed-die forging operations. It allows simulation-aided optimization of the dies as early as the design stage as well as individual adaptation to the particular production press well in advance of the test phase of the dies on the press.