【正文】 中國電子科技集團(tuán)公司科技與質(zhì)量部 *《 NC Technology 》 E－ mail: 開放式數(shù)控裝置的概念結(jié)構(gòu)硬件配置單元軟件配置單元標(biāo)準(zhǔn)計(jì)算機(jī)硬件數(shù)控系統(tǒng)基本硬件數(shù)控功能應(yīng)用程序DOS(WINDOWS)實(shí)時(shí)多任務(wù)操作系統(tǒng) RTM應(yīng)用程序接口NC構(gòu)件庫中國電子科技集團(tuán)公司科技與質(zhì)量部 *《 NC Technology 》 E－ mail: 國內(nèi)外開放式數(shù)控系統(tǒng)的研究進(jìn)展國內(nèi)外開放式數(shù)控系統(tǒng)的研究進(jìn)展1. 幾大研究計(jì)劃– 美國： NGC(The Next Generation Work173。 Foreground application is a real time interruption service program, which realizes the real tine functions216。On the other hand, resource time173。 Software, which depends on hardware, manages and drives peripheral equipment, such as CRT displayer, keyboard, and munication equipments, etc. ,and performs real time processes ,i. e. ,interruption management and various processors39。calculate some constants that will be used in interpolation calculation and speed control process, etc. 中國電子科技集團(tuán)公司科技與質(zhì)量部 *《 NC Technology 》 E－ mail: The function of control software (2) Interpolation calculations Interpolation calculation subroutine has the same functions with hardware interpolator in NC system,!, e. ,to assign electrical pulses for axes. It is a strict real time program, and demands as less as possible number of instruction codes, that is to say, to shorten the time for performing interpolation calculations ,because the time is determinative to the feed speed of interpolation. In some CNC system ,it is adopted to bine rough interpolation and fine interpolation 中國電子科技集團(tuán)公司科技與質(zhì)量部 *《 NC Technology 》 E－ mail: The function of control software(3) Tool pensation All types of CNC machine tools require some form(s) of pensation, such as tool length pensation, cutter radius pensation, and tool nose radius pensation. Though applied for different reasons on different machine types ,all forms of pensation allow the CNC user to allow for unpredictable conditions related to tooling. Generally speaking, if the CNC user is faced with any unpredictable situations during programming, it is likely that the CNC control manufacturer has e up with a form of pensation to deal with the problem.中國電子科技集團(tuán)公司科技與質(zhì)量部 *《 NC Technology 》 E－ mail: The function of control software(4) Speed control 216。SIEMENS (German)216。in173。CNC unit is the core of CNC system. The hardware prising a CNC unit is made up of microprocessors, electronic memory modules, I/O interfaces, and position control modules, etc. , which is just like an ordinary puter system. 中國電子科技集團(tuán)公司科技與質(zhì)量部 *《 NC Technology 》 E－ mail: Types of CNC Unit vby the architecture of printed circuit boards1. All173。3）數(shù)據(jù)處理 ： 包括刀具 補(bǔ)償 ，速度 計(jì) 算以及 輔 助功能的 處 理等?！? NC Technology 》 E－ mail: ?? Numerical Control Technology ??機(jī)電工程學(xué)院主講： 蔣廷彪 中國電子科技集團(tuán)公司科技與質(zhì)量部 *《 NC Technology 》 E－ mail: Ch4 COMPUTER NUMERICAL CONTROL UNIT 中國電子科技集團(tuán)公司科技與質(zhì)量部 *《 NC Technology 》 E－ mail: Outline system ARCHITECTURE OF CNC UNIT Software4. OPEN ARCHITECTURE SYSTEM FOR CNC UNIT中國電子科技集團(tuán)公司科技與質(zhì)量部 *《 NC Technology 》 E－ mail: Introduction vMachine controls are divided into two types:v numerical control (NC) v puter numerical control (CNC). vNC controls have to read the program each time a part is run。 4）插補(bǔ)： 插補(bǔ)的任務(wù)是通過插補(bǔ)計(jì)算程序在一條曲線的已知起點(diǎn)和終點(diǎn)之間進(jìn)行 “ 數(shù)據(jù)點(diǎn)的密化工作 ” 。in173。one board architecture中國電子科技集團(tuán)公司科技與質(zhì)量部 *《 NC Technology 》 E－ mail: 中國電子科技集團(tuán)公司科技與質(zhì)量部 *《 NC Technology 》 E－ mail: Multi173。FANUC (Japan)216。 Speed control subroutine aims at controlling the speed of pulses assigning, . controlling the frequency of interpolation calculation according to the setting speed code (or corresponding speed instruction) to guarantee the preset feed velocity.216。 management, which are all real time tasks. 216。sharing technology and time overlap flow line technique are mainly used in software designing. 中國電子科技集團(tuán)公司科技與質(zhì)量部 *《 NC Technology 》 E－ mail: Real time process216。 background application is a loop running program, which realizes the input of part program, do some preparatory processes and manages tasks of procedures. 216。station/Machine Controller)和 OMAC(Open Modular Architecture Controller)計(jì)劃– 歐共體： OSACA（ Open System Architecture for Control within Automation Systems)計(jì)劃– 日本： OSEC(Open System Environment for Controller)計(jì)劃– 華中 I型 —— 基于 IPC的 CNC開放體系結(jié)構(gòu)