支持远程调用及在线加工的DNC研究
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摘要
随着数控加工技术的发展,数控系统在制造企业的应用越来越广泛,分布式数字控制(DNC)技术因此得到了越来越多的应用。但目前的还存在传输距离有限、不能多台设备同时通讯、操作不方便等问题。
针对上述这些问题,本文在研究了串口通讯技术、NC程序远程调用技术、在线加工技术、并发通讯技术等相关技术的基础上,给出了支持远程调用及在线加工的DNC系统的解决方法,研究了基于串口服务器的DNC系统架构。在该DNC架构中,数控设备通过RS-232串口连接到串口服务器,串口服务器直接连接到基于TCP/IP协议的车间层局域网。数控设备通过向DNC主机发送含有约定命令的数控程序,DNC主机经分析该程序后执行相应的命令,实现NC程序的远程调用。同时,利用多线程技术实现多机床通讯的并发控制。
论文还对DNC系统的功能、数据库及程序进行了设计,用Visual C++和SQL Server 2000进行了软件开发。所开发的系统具有数控程序远程调用、程序库管理等功能,并支持数控设备的在线加工。该系统已初步应用于南京航空航天大学工程训练中心。
With the progress of Numerical Control (NC) technology, more and more NC equipments are used in manufacturing enterprise. Then the technology of Distributed Numerical Control (DNC) comes into application increasingly.
In application of this technology, there exist some problems, such as the communication distance between NC machines and DNC host is restricted, synchronously control is not supported and the operations are not convenient.
In this thesis, on the basis of researches on serial communication, remote call, drip feed and synchronous control, a DNC system based on RS-232 serial device server with the functions of remote call and drip feed is put forwards to solve the problems, and the framework of the DNC system is given. In it, the NC machines are connected to the serial device servers, and the serial device servers are connected to the LAN which is using TCP/IP protocol. The NC machines send a NC program with predefined instructions to the DNC host, then the host analyses the NC program and executes the instructions, so the function of remote call is realized. synchronous control of the communication is realized by the multithread technology.
In the thesis, the functions, databases and programs of the DNC system is designed, and it is developed with Visual C++ program and SQL Server 2000 Data Base Management System. It has functions such as remote call, NC program management and so on, and drip feed is supported. The developed system has been applied in Engineering Training Center of NUAA.
针对上述这些问题,本文在研究了串口通讯技术、NC程序远程调用技术、在线加工技术、并发通讯技术等相关技术的基础上,给出了支持远程调用及在线加工的DNC系统的解决方法,研究了基于串口服务器的DNC系统架构。在该DNC架构中,数控设备通过RS-232串口连接到串口服务器,串口服务器直接连接到基于TCP/IP协议的车间层局域网。数控设备通过向DNC主机发送含有约定命令的数控程序,DNC主机经分析该程序后执行相应的命令,实现NC程序的远程调用。同时,利用多线程技术实现多机床通讯的并发控制。
论文还对DNC系统的功能、数据库及程序进行了设计,用Visual C++和SQL Server 2000进行了软件开发。所开发的系统具有数控程序远程调用、程序库管理等功能,并支持数控设备的在线加工。该系统已初步应用于南京航空航天大学工程训练中心。
With the progress of Numerical Control (NC) technology, more and more NC equipments are used in manufacturing enterprise. Then the technology of Distributed Numerical Control (DNC) comes into application increasingly.
In application of this technology, there exist some problems, such as the communication distance between NC machines and DNC host is restricted, synchronously control is not supported and the operations are not convenient.
In this thesis, on the basis of researches on serial communication, remote call, drip feed and synchronous control, a DNC system based on RS-232 serial device server with the functions of remote call and drip feed is put forwards to solve the problems, and the framework of the DNC system is given. In it, the NC machines are connected to the serial device servers, and the serial device servers are connected to the LAN which is using TCP/IP protocol. The NC machines send a NC program with predefined instructions to the DNC host, then the host analyses the NC program and executes the instructions, so the function of remote call is realized. synchronous control of the communication is realized by the multithread technology.
In the thesis, the functions, databases and programs of the DNC system is designed, and it is developed with Visual C++ program and SQL Server 2000 Data Base Management System. It has functions such as remote call, NC program management and so on, and drip feed is supported. The developed system has been applied in Engineering Training Center of NUAA.
引文
[1] 葛研军. 数控加工关键技术及应用. 科学出版社,2005
[2] 严隽薇. 现代集成制造系统概论. 清华大学出版社,2004
[3] 闫伟国. 基于以太网和TCP/IP的DNC通信技术研究.大连理工大学学报,2003(1):77～81
[4] 冯勇,霍勇进编著. 现代计算机数控系统. 机械工业出版社,1996
[5] Wainwright C E R. CAD/CAM and DNC links as a strategy for manufacturing: implications for CAPM. Computing & Control Engineering Journal, 1992,3(2):82～87
[6] Stout P, Leonard R. The introduction of DNC technology as a partial approach to achieving the objectives of CIM. Computer Aided Engineering,1989,6(1):16～20
[7] Wainwright C E R. The application of DNC links as a partial approach to computer integrated manufacturing. IEEE International Workshop on Emerging Technologies and Factory Automation - Technology for the Intelligent Factory - Proceedings, 1992:72～77
[8] Firm D.L. Broad scope of DNC. Manufacturing Engineering, 1987, 99(2):49～51
[9] 方水良. 柔性制造系统的应用研究-两层局域网柔性DNC系统的研究与开发. 南京航空学院博士学位论文,1990
[10] 张旭梅. 集成DNC及其运行模式探讨. 计算机集成制造,1998,4(1):32～35
[11] 任建平,白恩远,王俊元,等. 现代数控机床故障诊断及维修. 国防工业出版社,2002
[12] OPC Data Access Custom Interface Specification Version2.05. 2001.12
[13] 陈蔚芳,王宏涛,薛建彬,等. 机床数控技术及应用. 科学出版社,2005.4
[14] Mart Albert. On the way to wireless DNC. Modern Machine Shop, 2004(11)
[15] 王毅栋. 基 于 XML和 OPC的 数 据 采 集 与 监 控 技 术 研 究 . 南 京 航 空 航 天 大学 硕 士 学 位 论 文 , 2002
[16] 陶桂宝. 基于Internet的网络化制造集成技术. 重庆大学学报,2001(1),12～16
[17] Tinham B. Shopfloor connections further and faster. Manufacturing Computer Solutions. 2002(12)
[18] 李兴兰. DNC分布式数控加工系统研究. 计算机与现代化,2002(04):1～7
[19] 谢希仁. 计算机网络. 大连理工大学出版社,1996
[20] LYNCH M. Understanding DNC systems. Cutting Tool Engineering, 1994,46(6):26～32
[21] 杨萍. CAN总线型DNC系统的设计与实现. 制造技术与机床,1998(12):7～9
[22] 李会方. PROFIBUS在数控车间FMS控制中的应. 微计算机信息,2001(1):17～19
[23] 郑文波. 现场总线技术综述. 机械与电子,1997(5):4～10
[24] 李万周,鄂立福. 现场总线概论. 微计算机信息,1996(6):17～19
[25] 启昌. 现场总线控制系统的优势和进展. 华北电力技术,1997(9):42～44
[26] 王锦标. 现场总线和现成总线控制系统. 化工自动化及仪表,1997(2):3～7
[27] 唐济扬. 现场总线与工厂底层自动化及信息集成技术. 制造业自动化,2000(3):14～18
[28] 谢希仁. 计算机网络. 大连理工大学出版社,1996
[29] 周泽魁. 控制仪表与计算机控制装置. 化学工业出版社,2002
[30] NPort Family Software Installation Guide, 2004.5
[31] 王星宝. 基于自动应答式服务器的组建化DNC系统研究. 南京航空航天大学硕士学位论文,2004
[32] NPort Express Hardware Installation Guide, 2002.12
[33] Nicholas Cravotta. DNC Faster and Better. Modern Machine Shop, 2001(11)
[34] 通信设备接口协议手册编写组. 通信设备接口协议手册. 人民邮电出版社,2005.2
[35] 李现勇. Visual C++串口通信技术与工程实践. 人民邮电出版社,2002
[36] SINUMERIK 802S/C base line/802D/810D powerline/840Di/840D powerline 数控系统. 西门子(中国)有限公司自动化与驱动集团,2004
[37] Keith Frantz. How to improve your DNC system. Modern Machine Shop, 2005(10)
[38] 闫伟国,王敏杰. DNC中数控程序传输速度与机床进给速度匹配关系的研究. 制造技术与机床,2003(3):25～26
[39] 何炎祥. 操作系统原理. 上海科学技术文献出版社,1999
[40] BEIJING-FANUC 0i操作说明书. 北京发那科机电有限公司,2002.3
[41] SINUMERICA 802S/802C操作编程——铣床. 西门子(中国)有限公司自动化与驱动部,2002.01
[2] 严隽薇. 现代集成制造系统概论. 清华大学出版社,2004
[3] 闫伟国. 基于以太网和TCP/IP的DNC通信技术研究.大连理工大学学报,2003(1):77～81
[4] 冯勇,霍勇进编著. 现代计算机数控系统. 机械工业出版社,1996
[5] Wainwright C E R. CAD/CAM and DNC links as a strategy for manufacturing: implications for CAPM. Computing & Control Engineering Journal, 1992,3(2):82～87
[6] Stout P, Leonard R. The introduction of DNC technology as a partial approach to achieving the objectives of CIM. Computer Aided Engineering,1989,6(1):16～20
[7] Wainwright C E R. The application of DNC links as a partial approach to computer integrated manufacturing. IEEE International Workshop on Emerging Technologies and Factory Automation - Technology for the Intelligent Factory - Proceedings, 1992:72～77
[8] Firm D.L. Broad scope of DNC. Manufacturing Engineering, 1987, 99(2):49～51
[9] 方水良. 柔性制造系统的应用研究-两层局域网柔性DNC系统的研究与开发. 南京航空学院博士学位论文,1990
[10] 张旭梅. 集成DNC及其运行模式探讨. 计算机集成制造,1998,4(1):32～35
[11] 任建平,白恩远,王俊元,等. 现代数控机床故障诊断及维修. 国防工业出版社,2002
[12] OPC Data Access Custom Interface Specification Version2.05. 2001.12
[13] 陈蔚芳,王宏涛,薛建彬,等. 机床数控技术及应用. 科学出版社,2005.4
[14] Mart Albert. On the way to wireless DNC. Modern Machine Shop, 2004(11)
[15] 王毅栋. 基 于 XML和 OPC的 数 据 采 集 与 监 控 技 术 研 究 . 南 京 航 空 航 天 大学 硕 士 学 位 论 文 , 2002
[16] 陶桂宝. 基于Internet的网络化制造集成技术. 重庆大学学报,2001(1),12～16
[17] Tinham B. Shopfloor connections further and faster. Manufacturing Computer Solutions. 2002(12)
[18] 李兴兰. DNC分布式数控加工系统研究. 计算机与现代化,2002(04):1～7
[19] 谢希仁. 计算机网络. 大连理工大学出版社,1996
[20] LYNCH M. Understanding DNC systems. Cutting Tool Engineering, 1994,46(6):26～32
[21] 杨萍. CAN总线型DNC系统的设计与实现. 制造技术与机床,1998(12):7～9
[22] 李会方. PROFIBUS在数控车间FMS控制中的应. 微计算机信息,2001(1):17～19
[23] 郑文波. 现场总线技术综述. 机械与电子,1997(5):4～10
[24] 李万周,鄂立福. 现场总线概论. 微计算机信息,1996(6):17～19
[25] 启昌. 现场总线控制系统的优势和进展. 华北电力技术,1997(9):42～44
[26] 王锦标. 现场总线和现成总线控制系统. 化工自动化及仪表,1997(2):3～7
[27] 唐济扬. 现场总线与工厂底层自动化及信息集成技术. 制造业自动化,2000(3):14～18
[28] 谢希仁. 计算机网络. 大连理工大学出版社,1996
[29] 周泽魁. 控制仪表与计算机控制装置. 化学工业出版社,2002
[30] NPort Family Software Installation Guide, 2004.5
[31] 王星宝. 基于自动应答式服务器的组建化DNC系统研究. 南京航空航天大学硕士学位论文,2004
[32] NPort Express Hardware Installation Guide, 2002.12
[33] Nicholas Cravotta. DNC Faster and Better. Modern Machine Shop, 2001(11)
[34] 通信设备接口协议手册编写组. 通信设备接口协议手册. 人民邮电出版社,2005.2
[35] 李现勇. Visual C++串口通信技术与工程实践. 人民邮电出版社,2002
[36] SINUMERIK 802S/C base line/802D/810D powerline/840Di/840D powerline 数控系统. 西门子(中国)有限公司自动化与驱动集团,2004
[37] Keith Frantz. How to improve your DNC system. Modern Machine Shop, 2005(10)
[38] 闫伟国,王敏杰. DNC中数控程序传输速度与机床进给速度匹配关系的研究. 制造技术与机床,2003(3):25～26
[39] 何炎祥. 操作系统原理. 上海科学技术文献出版社,1999
[40] BEIJING-FANUC 0i操作说明书. 北京发那科机电有限公司,2002.3
[41] SINUMERICA 802S/802C操作编程——铣床. 西门子(中国)有限公司自动化与驱动部,2002.01