压缩机厂数控信息管理系统的研究与开发

发布时间：2018-02-24 18:42

本文关键词： DNC 状态监控多线程技术信息采集设备利用率　出处：《江南大学》2011年硕士论文　论文类型：学位论文

【摘要】：网络化数控是制造业发展的必然要求,它已经成为企业提高竞争力的重要手段之一。DNC已经发展成为实现车间数控信息集成和设备集成的主要形式,在很多企业得到了采用。本文在充分分析我国数控设备使用问题的基础上,结合车间设备的实际情况,设计出一套集通信、监视、统计和管理于一体的DNC网络系统。在设计开发过程中,综合采用了DNC联网技术、多线程技术、编程技术、数据库开发等多种手段,最终实现系统的五大目标: 1.系统实现了不同数控系统、不同厂商、不同年代的数控机床(加工中心)的联网管理; 2.可以与数控设备进行双向通信,可以在设备端远程调用服务器中的数控程序;也可以将数控机床上的数控程序传到服务器中; 3.可以采集设备的多种加工信息,如工件信息、刀具信息、开关机时间和加工完工时间等;可以统计出各设备在一定时间内的总待机时间和总加工时间、工件加工数量,并计算出设备的利用率; 4.可以进行数控程序的编辑、审核、批准、固化等流程,对工艺技术部门设计的和车间设计的数控程序设计了不同的管理方式,可以将初始设计程序和修改后的程序对比; 5.可以对车间各类数控信息进行分类管理,包括设备管理、零件管理等。系统包括三大部分:网络通讯、数据库、软件系统。其中网络通讯结构是基础,采用协议转换联网方案,通过串口服务器与RS-232通讯口连接将数控机床转换为以太网的节点,再用多层交换机将数控机床、客户端和服务器联网,形成DNC网络的硬件基础;数据库存储所有数控程序信息、作业过程信息、机床状态信息、程序传输信息等;软件系统采用C/S构架,共有四个子模块,服务器和客户端分别进行数据的传送和服务、计算操作,有效地减轻了网络的超负荷的问题,软件根据用户的请求单向操作,数据的采集自动进行。经过实际应用,证明该系统可以有效地提高车间数控设备的利用率和自动化水平,方便企业管理层做出正确的决策,提高企业的生产效率。并且,系统的可扩展性强,可移植性好,为以后进一步与其他系统的集成打下了良好的基础。
[Abstract]:Networked NC is the inevitable requirement of manufacturing industry development. It has become one of the important means to improve the competitiveness of enterprises. DNC has developed into the main form of integration of workshop NC information and equipment, which has been adopted in many enterprises. Based on the analysis of the use of CNC equipment in China and the actual situation of workshop equipment, this paper designs a set of DNC network system which integrates communication, monitoring, statistics and management. DNC networking technology, multi-thread technology, programming technology, database development and other means are adopted to achieve the five goals of the system:. 1. The system realizes the network management of NC machine tools (machining center) with different NC systems, different manufacturers and different ages; 2. It can communicate with the NC equipment in both directions, and can call the NC program in the server at the end of the device, or transmit the NC program from the NC machine tool to the server. 3. It can collect many kinds of processing information of equipment, such as workpiece information, tool information, switching machine time and machining completion time, etc. The total standby time and total processing time of each equipment in a certain time, the number of workpieces processed, etc. The utilization ratio of the equipment is calculated. 4. The NC program can be edited, audited, approved, solidified and so on. Different management methods are designed for the NC program designed by the technical department and the workshop, and the original design program and the modified program can be compared. 5. The NC information of workshop can be classified and managed, including equipment management, part management, etc. The system includes three parts: network communication, database and software system. Through connecting serial port server and RS-232 communication port, the CNC machine tool is converted to Ethernet node, and then the CNC machine tool, client and server are connected with multi-layer switch to form the hardware foundation of DNC network. The database stores all NC program information, job process information, machine tool status information, program transmission information, etc. The calculation operation effectively alleviates the problem of network overload. The software operates in one direction according to the user's request and the data collection is carried out automatically. Through the practical application, it is proved that the system can effectively improve the utilization rate and automation level of the workshop NC equipment, facilitate the enterprise management to make the correct decision, and improve the production efficiency of the enterprise. Good portability, for further integration with other systems lay a good foundation.
【学位授予单位】：江南大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TH186;TP315

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