冲压自动化的若干基本问题

本文分析讨论了冲压自动化领域中的若干基本问题，包括模具结构，工件上下料，毛坯开垛上料，工件码垛，安全问题等，文章介绍了一条先进的冲压自动化生产线，可供实际生产参考。     

工程设备图形化管理系统的程序设计

介绍工程设备图形化数据库管理系统设计的一般方法和技术，分析和实施将设备对象作为图形对象处理时的程序设计技术，重点叙述图形对象与数据库关联的面向对象的程序设计方法。     

机械CAD的Delphi实现技术

介绍用Delphi开发机械CAD的优势和常用技术，叙述网络化机械CAD系统的构成与实现技术，结合机械CAD的开发实例叙述其程序设计方法和技巧，并介绍相应的数据库技术。     

基于PLC的压力机自动送料装置控制系统设计

设计了一套以日本三菱FX2N系列PLC为基础的自动送料装置，可用于空调风机叶片的加工。根据所需输入输出信号选择PLC型号，画出输入输出接线图，并采用SFC(Sequential Function Chart)图进行了控制系统软件设计。     

Automated Assembly of Mechatronic Products

The synergetic combination of mechanical engineering, electrical engineering, electronics and information technology enables mechatronic products to offer high levels of flexibility and performance. This interdisciplinary interaction requires changes in product structure and accordingly adapted in production strategies. The approach outlined in this article shows the specific use of the product structure with a view to increasing assembly efficiency. The product is actively integrated in the assembly process by setting up an IT link and making use of its sensor/actuator equipment and software, thus providing support for the production system. This makes it possible to increase the efficiency of automation while at the same time reducing assembly costs.     

Model checking response times in Networked Automation Systems using jitter bounds

Response time (RT) of Networked Automation Systems (NAS) is affected by timing imperfections induced due to the network, computing and hardware components. Guaranteeing RT in the presence of such timing imperfections is essential for building dependable NAS, and to avoid costly upgrades after deployment in industries.This investigation proposes a methodology and work-flow that combines modelling, simulation, verification, experiments, and software tools to verify the RT of the NAS during the design, rather than after deployment. The RT evaluation work-flow has three phases: model building, modelling and verification. During the model building phase component reaction times are specified and their timing performance is measured by combining experiments with simulation. During the modelling phase, component based mathematical models that capture the network architecture and inter-connection are proposed. Composition of the component models gives the NAS model required for studying the RT performance on system level. Finally, in the verification step, the NAS formal models are abstracted as UPPAAL timed automata with their timing interfaces. To model timing interfaces, the action patterns, and their timing wrapper are proposed. The formal model of high level of abstraction is used to verify the total response time of the NAS where the reactions to be verified are specified using a subset of timed computation tree logic (TCTL) in UPPAAL model checker. The proposed approach is illustrated on an industrial steam boiler deployment.     

基于CATIA Automation API的工程制图二次开发

利用CATIA软件提供的Automation API接口,通过Visual Basic.net开发平台,以高程标注模块开发为例,说明了CATIA工程制图二次开发的流程及方法.CATIA将自身大部分功能都制作成了符合微软Visual Studio.net类规范的C0M,通过其丰富的API函数即可完成绝大多数CATIA的自带功能,使得CATIA的初级二次开发简单易学且较为实用.     

自动化技术在青山湖泵站工程中的应用

通过介绍青山湖电排站综合自动化系统,阐述了泵站采用监控自动化技术后,提高了泵站运行的安全性和可靠性,以及运行管理水平.     

FIFO原则在自动化控制程序中的应用

在自动化程序编制过程中经常会遇到将实时数据进行存储,规定时间后取出,即实现数据缓存的功能。为了实现这种功能,在Step7编程软件中依照FIFO原则编写了功能块FB1013。本文将结合实例详细介绍这个功能块的功能及应用状况。     

泵站自动化技术的探讨

受国内泵站自动化水平低、运行管理和技术分析能力低下的限制,屡发的旱灾使工农业生产蒙受巨大损失,旱灾再次暴露陈旧的水利设施已不能满足社会发展的问题,在作为水利枢纽的大型泵站中引入自动化技术,可以有效提高设备运行效率和管理水平。结合我国目前泵站的实际,提出泵站自动化设计的方案,分析阐述自动控制技术在泵站中的具体应用。