木材加工数控系统智能控制子系统研究开发

发布时间：2018-01-23 21:00

本文关键词： 数控系统软PLC 木材异型制品故障诊断模拟仿真　出处：《北京林业大学》2013年硕士论文　论文类型：学位论文

【摘要】：随着数控技术的不断发展,全球制造业水平不断提高,数控技术已经广泛应用于各行各业,木材加工领域也不例外。目前,我国已是木材制品生产大国,但还不是强国,关键在于缺少拥有自主知识产权的、先进的木材加工数控系统。因此,作为数控木工设备的核心,数控系统的开发尤为重要。本课题介绍了国内外数控木材加工设备的发展概况,分析了木材异型制品及其加工设备的种类,根据木材异型制品加工设备的运动特点和功能要求,开发出面向木材异型制品的经济型以及开放式的一款数控系统。为了保证系统以后能够方便的进行升级与调试,系统采用模块化设计,利用软件来实现系统各个模块的功能,着重研究了系统的模拟仿真、故障诊断、软PLC控制等智能控制模块。系统以Windows操作系统为平台,根据木材加工的需要,从硬软件两方面对系统的整体框架进行了构造,硬件采用工控机IPC+I/O卡的结构,选用步进电机作为驱动装置。在分析数控系统工作流程的基础上,充分考虑木材异型制品的工艺特点,利用模拟仿真原理知识,以VC++作为开发工具,运用MFC类库和多线程技术,实现系统的模拟仿真。综合分析了造成系统设备故障的潜在因素,利用信息融合技术,对各种故障信号进行诊断,并与系统预先建立的故障信息库进行比对,根据不同级别的故障信号做出相应处理,确保系统设备安全稳定运行。此外,分析了软、硬PLC的特点,对系统的辅助控制功能模块进行了设计,结合木材制品加工设备工作环境的特点,以经济实用为原则,利用全软件化的方法,实现系统的辅助控制功能,从而保证了系统运行的稳定性。本系统作为一款相对完善的数控加工系统平台,它主要是根据各种不同的需求进行扩展和构建,并通过模块化的方式进行设计,让系统的适应性更加强,可以满足多种不同需求的木材异型制品的数控加工要求,具有较高的性价比,能够满足当前木材异型制品加工企业的生产需要,将会促进我国木材加工行业的发展。
[Abstract]:With the continuous development of numerical control technology, the level of global manufacturing industry continues to improve, numerical control technology has been widely used in a variety of industries, wood processing is no exception. At present, China has become a large country in the production of wood products. But not a powerful country, the key lies in the lack of advanced wood processing numerical control system with independent intellectual property rights. Therefore, as the core of numerical control woodworking equipment, the development of numerical control system is particularly important. This paper introduces the development of CNC wood processing equipment at home and abroad, analyzes the types of wood products and their processing equipment, according to the movement characteristics and functional requirements of wood shaped products processing equipment. In order to ensure that the system can be upgraded and debugged conveniently, the system adopts modular design. The software is used to realize the functions of each module of the system, and the intelligent control modules such as simulation, fault diagnosis, soft PLC control and so on are studied. Based on Windows operating system, according to the need of wood processing, the whole frame of the system is constructed from two aspects of hardware and software. The hardware adopts the structure of IPC I / O card of industrial control computer. The stepper motor is chosen as the driving device. On the basis of analyzing the working flow of the numerical control system, the technological characteristics of the wood shaped products are fully considered, and the simulation principle knowledge is used, and VC is used as the development tool. The simulation and simulation of the system are realized by using MFC class library and multi-thread technology. The potential factors causing the fault of the system equipment are analyzed synthetically, and the information fusion technology is used to diagnose the various fault signals. And compared with the system pre-established fault information base, according to different levels of fault signals to make corresponding processing to ensure the system equipment safe and stable operation. In addition, the characteristics of soft and hard PLC are analyzed. The auxiliary control function module of the system is designed. According to the characteristics of the working environment of the wood products processing equipment and the principle of economy and practicality, the auxiliary control function of the system is realized by the method of full software. Thus, the stability of the system is guaranteed. This system as a relatively perfect CNC machining system platform, it is mainly based on different needs for expansion and construction, and through modular design, so that the system's adaptability is enhanced. It can meet the numerical control processing requirements of various kinds of wood products with different requirements, and has a high performance and price ratio, and can meet the production needs of the current wood products processing enterprises. It will promote the development of wood processing industry in China.
【学位授予单位】：北京林业大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TS642;TP273

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