NC_technology_development_trends——数控技术发展趋势(双语)[1(2)

speed-related feedforward compensation and temperature compensation, with nearly smooth and exit, as well as the opposite point of the cutter radius compensation.

(4) high-performance PLC contents contents performance CNC system PLC control module can be directly used ladder diagram or high-level language programming, with intuitive online debugging and online help function. Programming tools include the standard used lathe and milling machine PLC user program an example, users may PLC user program standards on the basis of editorial changes, thus easily build their own applications.

(5) application of multimedia technology of multimedia technology-computers, audio-visual and communication technology, and it has the computer integrated voice, text, images and video information. In NC technology, multimedia technology can be applied to information processing integrated, intelligent, real-time monitoring system in the field and production equipment fault diagnosis, monitoring of process parameters such as production has a significant value.

2.3 Development of the Architecture

(1) integration of a highly integrated CPU, programmable RISC chips and

large-scale integrated circuits FPGA, EPLD, CPLD and ASIC ASIC chips that can improve the CNC system integration and hardware and software operating speed. Application FPD flat panel display technology can improve display performance. Flat-panel displays with high science and technology content, light weight, small size, low

power consumption and portability advantages can be realized Supersized, a

counterweight to the emerging and CRT display technology, display technology in the 21st century the mainstream. Application of advanced packaging and interconnect technologies, semiconductors and surface mount technology integration. By

increasing the density of integrated circuits, reducing the length and number of interconnection products to reduce prices, improve performance, reduce component size, improve the reliability of the system.

(2) easy to implement modular hardware modular NC systems integration and standardization. According to various functional requirements, the basic modules, such as CPU, memory, position servo, PLC, the input and output interfaces, and communications modules, making the standard Series products, through functional building-block approach to cutting the number of steps and modules, a NC system at different grades.

(3) machine interconnection network for remote control of unmanned operation. Machine through networking, can be in any one machine on the other machine programming, configuration, operation, operating, different machine can be displayed on the screen each machine on the screen.

(4) general-open the closed-loop control mode to adopt a common computer component Bus, modular, open, embedded architecture, ease of cutting, expansion and upgrading, can be composed of different grades, different types, different degree of integration CNC system. Closed-loop control mode is the traditional CNC system only for single closed-open-loop control mode proposed. The manufacturing process is a multi-variable control and the role of integrated processing complex process, including processing, such as size, shape, vibration, noise, temperature and thermal deformation, and other factors, therefore, to achieve the process of multi-objective optimization, Multivariable must adopt the closed-loop control, real-time

processing in the dynamic adjustment process variables. Processing the adoption of open universal real-time closed-loop control mode the whole dynamic, easy real-time intelligent computer technology, network technology, multimedia technology, CAD / CAM, servo control, adaptive control, dynamic data management and dynamic tool compensation, dynamic simulation and other high technology into one, a tight

closed-loop manufacturing process control system to achieve integrated, intelligent, network-based.

3 PCNC new generation of intelligent CNC system

Research and Development adapted to the current complexity of the manufacturing process, with the structure of the closed-loop control system, a new generation of intelligent PCNC CNC system has become possible. PCNC NC intelligent system will be a new generation of intelligent computer technology, network technology, CAD / CAM, servo control, adaptive control, dynamic data management and dynamic tool compensation, dynamic simulation and other high technology into one, a tight closure of the manufacturing process Central control system. 数控技术的发展趋势 - 数控技术发展趋势

1国内外数控系统开发

随着计算机技术的飞速发展，从根本上改变传统的制造业开始，工业发达国家用于现代制造技术的研究和开发巨额资金，以创建一个新的模式。在现代制造系统，数控技术是技术，它集微电子，计算机，信息处理，自动检测，自动控制等先进的一体化，关键，高精度，高效率，柔性自动化，以及其他特征，制造业柔性自动化，集成化，智能化起到举足轻重的作用。目前，数控技术正经历着从一个特殊的闭环控制方式的根本转变，为通用实时动态打开所有闭环控制模式。在对数控系统的超薄，超轻的基础相结合;对智能化，集成化的计算机，多媒体，模糊控制，神经网络等技术学科，数控系统的基础上实现高速，高高精度，高效率控制，自动处理，可以修正，调节补偿和一个在线智能故障诊断和治疗网络的CAD / CAM与数控系统网络集成为一体机的参数，使得中央政府的集中控制群控加工。

长期以来，China'的数控系统为传统封闭式体系结构，但只能作为非智能数控机床控制器。过程变量的基础上在预先固定参数形式的经验，处理前由专人或通过CAD / CAM及自动编程系统编写实际的处理程序。 CAD / CAM与数控有没有反馈控制环节，整个制造过程是一个封闭的数控开环执行机构。在根据的组成，工件材料，主轴转速，进给速度，刀具路径过程中，处理工具和不断变化的环境条件复杂，切割不在现场的情况下深度，台阶，津贴和其他工艺参数，根据外部干扰和实时动态随机因素没有反馈控制环节随机修正的CAD / CAM的设置数量，进而影响的数控加工效率和产品质量工作。显然，传统的固定数控系统，控制模式和封闭式体系结构，限 …… 此处隐藏：4711字，全部文档内容请下载后查看。喜欢就下载吧 ……