机械设计制造及其自动化(数控技术)英语论文
机械设计制造及其自动化毕业论文完整版

机械设计制造及其自动化毕业论文完整版机械设计制造及其自动化毕业论文完整版摘要本文研究了一种轴类零件的加工方法,通过分析该零件的结构和材料,选择了数控车床作为加工设备。
在实验过程中,通过对数控车床的特点和应用进行了介绍,并分析了数控车床加工轴类零件的优势。
最终,本文对该零件的功能、结构和材料进行了详细分析,为后续的加工提供了重要的参考。
关键词:轴类零件、数控车床、结构分析、材料分析、加工方法第一章任务介绍轴的零件图在本次研究中,我们选取了一种轴类零件,其零件图如下图所示:图略)零件图的分析通过对上述零件图的分析,我们可以看出该零件由三个主要部分组成,分别是轴体、轴承和轴头。
其中,轴体是该零件的主要承载部分,负责传递转矩和承受载荷。
轴承则用于支撑轴体,减小摩擦力和磨损。
轴头则用于连接其他零件,完成整个机械系统的工作。
选择加工设备(题目给定用数控车)在确定了轴类零件的结构和功能后,我们需要选择适合的加工设备进行加工。
在本次研究中,我们选择了数控车床作为加工设备。
数控车床具有高精度、高效率、高自动化程度等优势,在加工轴类零件时具有明显的优势。
第二章数控车床的简介概述数控车床是一种自动化加工设备,通过预先编写好的程序,控制刀具的运动轨迹和加工参数,实现对工件的高精度加工。
数控车床广泛应用于机械制造、航空航天、汽车制造等领域。
2.1.1 数控车床的特点及应用数控车床的主要特点包括:1)高精度:数控车床具有高精度的加工能力,可以实现微米级别的加工精度。
2)高效率:数控车床的加工效率远高于传统的手工加工和普通机床加工。
3)高自动化程度:数控车床的加工过程全部由计算机控制,无需人工干预,提高了生产效率和安全性。
数控车床广泛应用于各种机械零件的加工中,特别是对于形状复杂、精度要求高的轴类零件,数控车床具有明显的优势。
2.1.2 数控车床的发展前景随着自动化技术和人工智能技术的不断发展,数控车床的发展前景十分广阔。
未来,数控车床将更加智能化、高效化、自动化,成为机械制造领域的重要生产力。
机械设计制造及其自动化毕业论文完整版

目录摘要-----------------------------------------------------------------------------3关键词--------------------------------------------------------------------------3第一章任务介绍---------------------------------------------------------31.1轴的零件图-------------------------------------------------------31.2零件图的分析----------------------------------------------------31.3选择加工设备(题目给定用数控车)-----------------3第二章数控车床的简介-----------------------------------------------42.1概述-------------------------------------------------------------------42.1.1数控车床的特点及应用----------------------------------------42.1.2数控车床的发展前景-------------------------------------------62.1.3数控车床加工轴类零件的优势 -----------------------------7第三章轴类零件的分析--------------------------------------------------73.1该零件的功能分析----------------------------------------------73.2该零件的结构分析----------------------------------------------73.3该零件材料及受力分析-----------------------------------------83.4该零件的精度分析-----------------------------------------------9第四章轴的加工工艺方案---------------------------------------------94.1零件图工艺分析----------------------------------------------------94.2选择毛坯--------------------------------------------------------------104.3确定加工顺序-------------------------------------------------------104.4选择夹具及确定装夹方案--------------------------------------114.5选择加工刀具---------------------------------------------------114.6确定进给路线---------------------------------------------------124.7合理选着切削用量---------------------------------------------124.8 编写工艺卡------------------------------------------------------134.9 编写加工程序---------------------------------------------------144.10调试模拟运行程序,无误后加工----------------------164.11完成零件加工并进行精度检测--------------------------16第五章总结------------------------------------------------------------------17参考文献------------------------------------------------------------------------18 致谢--------------------------------------------------------------------------------18摘要数控加工制造技术正逐渐得到广泛的应用,对零件进行编程加工之前,工艺分析具有非常重要的作用。
介绍自动化英文作文

介绍自动化英文作文英文:Automation is the use of technology to perform tasks without human intervention. It has revolutionized many industries, from manufacturing to transportation to healthcare. Automation has greatly increased efficiency and productivity, while also reducing errors and costs.In manufacturing, automation has allowed for faster and more precise production, as robots and machines can perform repetitive tasks with greater accuracy and speed than humans. This has resulted in higher quality products and lower costs for consumers.In transportation, automation has led to the development of self-driving cars and trucks, which have the potential to greatly reduce accidents and traffic congestion. In healthcare, automation has improved patient care by allowing for more accurate diagnoses and treatments.However, there are also concerns about the impact of automation on employment. As more tasks are automated, there is a risk that many jobs will become obsolete. It is important for society to address this issue and find ways to ensure that workers are not left behind in the age of automation.中文:自动化是利用技术来执行任务而无需人类干预。
机械的工作英文作文

机械的工作英文作文英文:As a mechanical engineer, my work involves designing, developing, and testing mechanical devices and systems. This can range from simple machines like gears and pulleys to complex systems like engines and robots. I work closely with other engineers and technicians to ensure that the products we create meet the needs of our clients and are safe and reliable.One of the most challenging aspects of my job is troubleshooting. When a machine or system isn't working properly, it's up to me to figure out what's causing the problem and come up with a solution. This often involves a lot of trial and error, as well as creative thinking and problem-solving skills.Another important part of my job is staying up-to-date with the latest technology and industry trends. This meansattending conferences and workshops, reading industry publications, and networking with other professionals in my field. By staying informed, I can ensure that the products I design and develop are cutting-edge and meet the needs of our clients.Overall, my job as a mechanical engineer is challenging but rewarding. I enjoy the problem-solving aspect of my work and the satisfaction of seeing a project through from conception to completion.中文:作为一名机械工程师,我的工作涉及设计、开发和测试机械设备和系统。
机械设计制造及其自动化毕业论文

机械设计制造及其自动化毕业论文一、引言随着科技的飞速发展,机械设计制造及其自动化成为现代工业不可或缺的一部分。
毕业论文是机械设计制造及其自动化专业的学生展示其专业技能和知识的重要方式。
本文将探讨机械设计制造及其自动化的相关技术和未来发展趋势,并以具体的毕业论文为例,展示如何将这些理论知识应用于实际工程中。
二、机械设计制造及其自动化的主要技术1、计算机辅助设计(CAD):CAD技术是机械设计制造的基础,它能够通过计算机进行图形设计和数据分析,提高设计效率和准确性。
2、机械制造工艺:机械制造工艺是实现从设计到产品的关键环节,包括加工、装配、检验等步骤。
3、自动化技术:自动化技术是机械制造自动化的核心,包括机器人技术、自动化设备、自动化控制系统等。
4、质量控制:质量控制是保证机械产品品质的关键,包括统计过程控制、全面质量管理等。
三、毕业论文案例分析本部分将展示一篇关于机械设计制造及其自动化的毕业论文。
论文主题为“基于机器学习的机械加工过程优化”。
该论文首先对现有的机械加工过程进行了详细的调研和分析,指出当前机械加工过程存在的一些问题,如效率低下、精度不高等。
然后,论文提出了一种基于机器学习的机械加工过程优化方法。
该方法利用机器学习算法对大量的机械加工数据进行学习和分析,以找出影响加工效率和质量的关键因素,进而优化加工过程。
具体来说,该论文采用深度学习算法对机械加工数据进行学习,并根据学习结果对加工参数进行优化。
通过实验验证,该方法有效地提高了机械加工效率和精度。
四、结论与展望本文对机械设计制造及其自动化进行了深入的探讨,并展示了一篇毕业论文案例。
通过本文的介绍和分析,我们可以看到,机械设计制造及其自动化在现代工业中的重要性和应用前景。
未来,随着科技的不断发展,我们期待看到更多的创新技术和方法被应用到机械设计制造及其自动化领域,以推动工业的持续发展和进步。
随着科技的不断发展,机械设计制造及其自动化技术已经成为现代工业生产中的重要支柱。
机械设计制造及其自动化职业规划范文3篇

机械设计制造及其自动化职业规划范文3篇Model of career planning for mechanical design and ma nufacturing and automation机械设计制造及其自动化职业规划范文3篇前言:个人简历是求职者给招聘单位发的一份简要介绍,包括个人的基本信息、过往实习工作经验以及求职目标对应聘工作的简要理解,在编写简历时,要强调工作目标和重点,语言精简,避免可能会使你被淘汰的不相关信息。
写出一份出色的个人简历不光是对找工作很有用处,更是让陌生人对本人第一步了解和拉进关系的线。
本文档根据个人简历内容要求和特点展开说明,具有实践指导意义,便于学习和使用,本文下载后内容可随意调整修改及打印。
本文简要目录如下:【下载该文档后使用Word打开,按住键盘Ctrl键且鼠标单击目录内容即可跳转到对应篇章】1、篇章1:机械设计制造及其自动化职业规划范文2、篇章2:机械设计制造及其自动化职业规划范文3、篇章3:机械设计制造及其自动化职业规划范文职业生涯规划,对于机械设计制造及其自动化个人工作者未来的职业生涯发展至关重要。
下面是由小泰分享的机械设计制造及其自动化职业规划范文,希望对你有用。
篇章1:机械设计制造及其自动化职业规划范文一、自身情况:自己的兴趣爱好有军事、人文历史、科学、自然、旅游(较广泛)自己的性格特点:内、向并兼,对事物偏于理性认识自己的优点:1.自认为是有理想、有思想、有纪律、有自信和自知之明的人;遵纪守法,态度端正,坚持原则及责任感强;热爱生活、积极乐观,取他人之长补己之短。
2.本人有一颗善于学习借鉴自我优化的消化力,对人真诚和蔼、尊敬正直的友爱之心,善于培养兴趣,重视实践与探索。
自己的缺点:1.口才欠佳,交际面小。
2.信赖随和,计划性弱。
3.做事方式欠灵活。
自我总结:职业心理学的研究表明,一个人的性格对于其在工作中的表现有着非常重要的影响,本人认为,对于自身性格特点进行一下全面深入地了解,很有必要。
数控专业毕业论文范文

第一章绪论1.1 数控机床概述数控技术,简称数控(Numerical Control—NC),是利用数字化信息对机械运动及加工过程进行控制的一种方法。
由于现代数控都采用了计算机进行控制,因此,也可以称为计算机数控(Computerized Numerical Control—CNC)。
为了对机械运动及加工过程进行数字化信息控制,必须具备相应的硬件和软件。
用来实现数字化信息控制的硬件和软件的整体成为数控系统(Numerical Control System),数控系统的核心是数控装置(Numerical Controller)。
采用数控技术进行控制的机床,称为数控机床(NC 机床)。
它是一种综合应用了计算机技术、自动控制技术、精密测量技术和机床设计等先进技术的典型机电一体化产品,是现代制造技术的基础。
控制机床也是数控技术应用最早、最广泛的领域,因此,数控机床的水平代表了当前数控技术的性能、水平和发展方向。
数控机床种类繁多,有钻铣镗床类、车削类、磨削类、电加工类、锻压类、激光加工类和其他特殊用途的专用数控机床等等,凡是采用了数控技术进行控制的机床统称为NC 机床。
带有自动换刀装置ATC(Automatic Tool Changer—ATC)的数控机床(带有回转刀架的数控车床除外)称为加工中心(Machine Center—MC)。
它通过刀具的自动交换,工件可以一次装、夹完成多工序的加工,实现了工序集中和工艺的复合,从而缩短了辅助加工时间,提高了机床的效率;减少了工件安装、定位次数,提高了加工精度。
加工中心是目前数控机床中产量最大、应用最广的数控机床。
在加工中心的基础上,通过增加多工作台(托盘)自动交换装置(Auto Pallet Changer—APC)以及其他相关装置,组成的加工单元称为柔性加工单元(Flexible Manufacturing Cell—FMC)。
FMC 不仅是现了工序的集中和工艺的复合,而且通过工作台(托盘)的自动交换和较完善的自动监测、监控功能,可以进行一定时间的无人化加工,从而进一步提高了设备的加工效率。
机械设计制造及其自动化专业毕业论文参考选题

机械设计制造及其自动化专业毕业设计参考选题(一)结构1.旋转式多工位自动装配机工作装置结构设计2. 喷浆机械手机构设计3.普通铣床传动系统和变速箱的设计4.车床床头箱设计及有限元分析5.四工位专用机床的传动系统和分动箱设计6.轮胎式压路机的传动系统和变速箱的设计7.自动洗衣机行星齿轮减速器的设计8. 3t液压千斤顶结构设计9. 六足步行机器人总体设计10.WY型滚动轴承压装机设计11.三自由度气动机械手结构设计12.SUV汽车驱动桥设计13.皮带运输机设计14.多功能自动跑步机机械结设计15.车床床头箱设计及有限元分析16.一种射击式气动冲击锤的设计17.数控工作台的回转进给部件设计18.精密数控磨床磨头设计19.C618数控车床主传动系统设计20.小型数控切割机传动装置设计21.汽车麦弗逊悬架设计22.悬臂搬运机器人机械本体设计23.颚式破碎机机构优化设计24.卧式钢筋切断机的设计25. 轿车转向系统设计26.装载机工作装置力学分析与结构设计(二)液压1.旋挖钻机液压系统设计2.大型电动轮自卸车举升液压系统设计3. 10t液压挖掘机液压系统设计4. 万能外圆磨床液压传动系统设计5. 注塑机液压系统设计6 .3万吨水压机液压系统设计7. 万能外圆磨床液压传动系统设计8. 自装卸运输车作业装置及液压系统设计9. 金属打包机液压系统和控制系统设计(三)电气控制:1.立体式停车库电气控制系统设计2.立式钻削加工中心自动换刀装置电气控制系统设计3. 全自动剪板机PLC控制系统设计4.数控两坐标联动工作台控制电路及控制软件5.四轮驱动小车控制系统设计6.机械手控制电路及软件设计7. 三自由度机械手的PLC控制系统设计8. 液压半自动多刀车床PLC改造9. 自动扶梯驱动机及电气控制系统设计10.电子通讯接头自动装配机控制系统设计(四)模具设计及其它:1. 键盘三维造型及模具设计2. 塑料桌产品及其注塑模具设计3.多功能台灯结构设计及其开关零件模具设计4.移动硬盘结构设计及其上盖零件模具设计5.电吹风壳体零件成型工艺参数优化及模具设计6.电吹风手柄零件模具设计及其装配仿真7.手机翻盖注塑模的设计8.塑料椅产品及其注塑模具设计9.镜头盖注射模具设计及其工艺10.箱体零件工艺装配设计11.柴油机气缸盖工艺规程及夹具设计12. 凿岩台车六自由度机械臂运动分析13.差速器壳体机械加工工艺与夹具设计14.铣床加工支撑套零件使用的专用夹具的设计及工艺制定15.数控两坐标联动工作台机械及步进电机驱动电路设计。
自动化专业介绍英语作文

自动化专业介绍英语作文English: Automation is a rapidly growing field that involves the use of various technologies to control and monitor different processes, reducing the need for human intervention. This field encompasses a wide range of industries, including manufacturing, agriculture, healthcare, transportation, and more. Automation professionals are responsible for designing, developing, and implementing automated systems to streamline operations, increase efficiency, and improve overall productivity. They work with a variety of tools and technologies, such as programmable logic controllers (PLCs), robotics, sensors, and actuators. To succeed in this field, individuals need a strong background in engineering, computer science, or a related discipline, along with excellent problem-solving skills and attention to detail. With the continued advancement of technology, the demand for automation professionals is expected to grow, making it an exciting and rewarding career choice for those interested in cutting-edge innovations and improving system performance.中文翻译: 自动化是一个快速发展的领域,涉及使用各种技术来控制和监控不同的流程,减少人为干预的需求。
数控专业的介绍作文英文

数控专业的介绍作文英文英文:As a CNC major, I have learned a lot about the world of computer numerical control. CNC technology is a vital partof modern manufacturing, allowing for precise and efficient production of parts and products. In my studies, I have gained a deep understanding of the principles andtechniques involved in CNC machining, including programming, tool selection, and machine operation.One of the most important aspects of CNC machining is programming. This involves writing code that tells the machine how to move and operate. It requires a high levelof technical skill and attention to detail, as even a small mistake in the code can result in a faulty product. However, with practice and experience, programming becomes easierand more intuitive.Another key skill in CNC machining is tool selection.Different tools are used for different tasks, and it is important to choose the right tool for the job in order to achieve the desired result. This requires knowledge of the properties of different materials and the capabilities of different tools.Finally, machine operation is a crucial part of CNC machining. This involves setting up the machine, loading the program, and monitoring the process to ensure that everything is running smoothly. It requires a keen eye for detail and the ability to troubleshoot problems quickly and effectively.Overall, I have found studying CNC technology to be both challenging and rewarding. It has given me a deep appreciation for the precision and complexity of modern manufacturing, as well as the skills and knowledge necessary to succeed in this field.中文:作为一名数控专业的学生,我学到了很多关于计算机数控技术的知识。
机械设计制造及其自动化(数控技术)英语论文

Numerical control technology and equiping development trend andcountermeasureNumerical control technology is the technology controlled to mechanical movement and working course with digital information, integrated products of electromechanics that the numerical control equipment is the new technology represented by numerical control technology forms to the manufacture industry of the tradition and infiltration of the new developing manufacturing industry, namely the so-called digitization is equipped, its technological range covers a lot of fields: (1)Mechanical manufacturing technology; (2)Information processing , processing , transmission technology; (3)Automatic control technology; (4)Servo drive technology; (5)Technology of the sensor ; (6)Software engineering ,etc..1 Development trend of a numerical control technologyThe application of numerical control technology has not only brought the revolutionary change to manufacturing industry of the tradition, make the manufacturing industry become the industrialized symbol , and with the constant development of numerical control technology and enlargement of the application, the development of some important trades (IT , automobile , light industry , medical treatment ,etc. ) to the national economy and the peoples livelihood of his plays a more and more important role, because the digitization that these trades needed to equip has already been the main trend of modern development. Numerical control technology in the world at present and equiping the development trend to see, there is the following several respect [1- ] in its main research focus .1.1 A high-speed , high finish machining technology and new trend equippedThe efficiency , quality are subjavanufacturing technology. High-speed , high finish machining technology can raise the efficiency greatly , improve the quality and grade of the products, shorten production cycle and improve the market competitive power. Japan carries the technological research association first to classify it as one of the 5 great modern manufacturing technologies for this, learn (CIRP ) to confirm it as the centre in the 21st century and study one of the directions in international production engineering.In the field of car industry, produce one second when beat such as production of 300,000 / vehicle per year, and many variety process it is car that equip key problem that must be solved one of; In the fields of aviation and aerospace industry,spare parts of its processing are mostly the thin wall and thin muscle, rigidity is very bad, the material is aluminium or aluminium alloy, only in a situation that cut the speed and cut strength very small high, could process these muscles , walls . Adopt large-scale whole aluminium alloy method that blank " pay empty " make the wing recently, such large-scale parts as the fuselage ,etc. come to substitute a lot of parts to assemble through numerous rivet , screw and other connection way, make the intensity , rigidity and dependability of the component improved. All these, to processing and equiping the demand which has proposed high-speed , high precise and high flexibility. According to EMO2001 exhibition situation, high-speed machining center is it give speed can reach 80m/min is even high , air transport competent speed can up to 100m/min to be about to enter.A lot of automobile factories in the world at present, including Shanghai General Motors Corporation of our country, have already adopted and substituted and made the lathe up with the production line part that the high-speed machining center makes up . HyperMach lathe of U.S.A. CINCINNATI Company enters to nearly biggest 60m/min of speed, it is 100m/min to be fast, the acceleration reaches 2g, the rotational speed of the main shaft has already reached 60 000r/min. Processing a thin wall of plane parts, spend 30min only, and same part general at a high speed milling machine process and take 3h, the ordinary milling machine is being processed to need 8h; The speed and acceleration of main shaft of dual main shaft lathes of Germany DMG Company are up to 12* separately! 000r/mm and 1g. In machining accuracy, the past 10 years, ordinary progression accuse of machining accuracy of lathe bring 5¦Ìm up to from 10¦Ìm already, accurate grades of machining center from 3- 5¦Ìm, rise to 1- 1.5¦Ìm, and ultraprecision machining accuracy is it enter nanometer grade to begin already (0.01¦Ìm). In dependability, MTBF value of the foreign numerical control device has already reached above 6 000h, MTBF value of the servo system reaches above 30000h, demonstrate very high dependability . In order to realize high-speed , high finish machining, if the part of function related to it is electric main shaft , straight line electrical machinery get fast development, the application is expanded further.1.2 Link and process and compound to process the fast development of the lathe in 5 axesAdopt 5 axles to link the processing of the three-dimensional curved surface part, can cut with the best geometry form of the cutter , not only highly polished, but also efficiency improves by a large margin . It is generally acknowledged , the efficiency of an 5 axle gear beds can equal 2 3 axle gear beds , is it wait for to use the cubic nitrogen boron the milling cutter of ultra hard material is milled and pared at a high speed while quenching the hard steel part, 5 axles link and process 3 constant axles to link and process and give play to higher benefit. Because such reasons as complicated that 5 axles link the numerical control system , host computer structure that but go over, it is several times higher that its price links the numerical control lathe than 3 axles , in addition the technological degree of difficulty of programming is relatively great, have restricted the development of5 axle gear beds. At present because of electric appearance of main shaft, is it realize 5 axle complex main shaft hair structure processed to link greatly simplify to make, it makes degree of difficulty and reducing by a large margin of the cost, the price disparity of the numerical control system shrinks . So promoted 5 axle gear beds of head 无效 of complex main shaft and compound to process the development of the lathe (process the lathe including 5 ). At EMO2001 exhibition, new Japanese 5 of worker machine process lathe adopt complex main shaft hair, can realize the processing of 4 vertical planes and processing of the wanton angle , make 5 times process and 5 axles are processed and can be realized on the same lathe, can also realize the inclined plane and pour the processing of the hole of awls . Germany DMG Company exhibits the DMUVoution series machining center, but put and insert and put processing and 5 axles 5 times to link and process in once, can be controlled by CNC system or CAD/CAM is controlled directly or indirectly.1.3 Become the main trend of systematic development of contemporary numerical control intelligently , openly , networkedlilyThe numerical control equipment in the 21st century will be sure the intelligent system, the intelligent content includes all respects in the numerical control system: It is intelligent in order to pursue the efficiency of processing and process quality, control such as the self-adaptation of the processing course, the craft parameter is produced automatically; Join the convenient one in order to improve the performance of urging and use intelligently, if feedforward control , adaptive operation , electrical machinery of parameter , discern load select models , since exactly makes etc. automatically automatically; The ones that simplified programming , simplified operating aspect are intelligent, for instance intelligent automatic programming , intelligent man-machine interface ,etc.; There are content of intelligence diagnose , intelligent monitoring , diagnosis convenient to be systematic and maintaining ,etc..Produce the existing problem for the industrialization of solving the traditional numerical control system sealing and numerical control application software. A lot of countries carry on research to the open numerical control system at present, such as NGC of U.S.A. (The Next Generation Work-Station/Machine Control), OSACA of European Community (Open System Architecture for Control within Automation Systems), OSEC (Open System Environment for Controller ) of Japan, ONC (Open Numerical Control System ) of China ,etc.. The numerical control system melts to become the future way of the numerical control system open.The so-called open numerical control system is the development of the numerical control system can be on unified operation platform, face the lathe producer and end user, through changing, increasing or cutting out the structure target(numerical control function), form the seriation, and can use users specially conveniently and the technical know-how is integrated in the control system, realize the open numerical control system of different variety , different grade fast, form leading brand products with distinct distinction.System structure norm of the open numerical control system at present, communication norm , disposing norm , operation platform , numerical control systematic function storehouse and numerical control systematic function software developing implement ,etc. are the core of present research. The networked numerical control equipment is a new light spot of the fair of the internationally famous lathe in the past two years. Meeting production line , manufacture system , demand for the information integration of manufacturing company networkedly greatly of numerical control equipment, realize new manufacture mode such as quick make , fictitious enterprise , basic Entrance that the whole world make too.Some domestic and international famous numerical control lathes and systematic manufacturing companies of numerical control have all introduced relevant new concepts and prototypes of a machine in the past two years, if in EMO2001 exhibition, " CyberProduction Center " that the company exhibits of mountain rugged campstool gram in Japan (Mazak ) (intellectual central production control unit, abbreviated as CPC); The lathe company of Japanese big Wei (Okuma ) exhibits " IT plaza " (the information technology square , is abbreviated as IT square ); Open Manufacturing Environment that the company exhibits of German Siemens (Siemens ) (open the manufacturing environment, abbreviated as OME),etc., have reflected numerical control machine tooling to the development trend of networked direction.1.4 Pay attention to the new technical standard , normal setting-up1.4.1 Design the norm of developing about the numerical control systemAs noted previously, there are better commonability , flexibility , adaptability , expanding in the open numerical control system, such countries as U.S.A. , European Community and Japan ,etc. implement the strategic development plan one after another , carry on the research and formulation of the systematic norm (OMAC , OSACA , OSEC ) of numerical control of the open system structure, 3 biggest economies in the world have carried on the formulation that nearly the same science planned and standardized in a short time, have indicated a new arrival of period of change of numerical control technology. Our country started the research and formulation of standardizing the frame of ONC numerical control system of China too in 2000.1.4.2 About the numerical control standardThe numerical control standard is a kind of trend of information-based development of manufacturing industry. Information exchange among 50 years after numerical control technology was born was all because of ISO6983 standard, namely adopt G, M code describes how processes, its essential characteristic faces the processing course, obviously, he cant meet high-speed development of modern numerical control technologys needs more and more already. For this reason, studying and making a kind of new CNC system standard ISO14649 (STEP-NC) in the world, its purpose is to offer a kind of neutral mechanism not depending on the concrete system , can describe the unified data model in cycle of whole life of the products , thusrealize the whole manufacture process, standardization of and even each industrial field product information.The appearance of STEP-NC may be a revolution of the technological field of the numerical control, on the development and even the whole manufacturing industry of numerical control technology , will exert a far-reaching influence. First of all, STEP-NC puts forward a kind of brand-new manufacture idea , in the traditional manufacture idea, NC processes the procedures to all concentrate on individual computer. Under the new standard, NC procedure can be dispersed on Internet, this is exactly a direction of open , networked development of numerical control technology. Secondly, STEP-NC numerical control system can also reduce and process the drawing (about 75% ) , process the procedure to work out the time (about 35% ) and process the time (about 50% ) greatly . At present, American-European countries pay much attention to the research of STEP-NC, Europe initiates IMS plan (1999.1.1- 2001.12.3 ) of STEP-NC. 20 CAD/CAM/CAPP/CNC users , manufacturers and academic organizations from Europe and Japan participated in this plan. STEP Tools Company of U.S.A. is a developer of the data interchange software of manufacturing industry in the global range, he has already developed the super model (Super Model ) which accuses of information exchange of machine tooling by counting, its goal is to describe all processing courses with the unified norm. Such new data interchange form has already been verified in allocating the SIEMENS , FIDIA and European OSACA-NC numerical control at present.2 pairs of basic estimations of technology and industry development of numerical control of our countryThe technology of numerical control of our country started in 1958, the development course in the past 50 years can roughly be divided into 3 stages:The first stage is from 1958 to 1979, namely closed developing stage. In this stages, because technology of foreign countries blockade and basic restriction of terms of our country, the development of numerical control technology is comparatively slow.The second stage is during " Sixth Five-Year Plan Period " , " the Seventh Five-Year Plan Period " of the country in second stage and earlier stage in " the Eighth Five-Year Plan Period ", namely introduce technology, digest and assimilate, the stage of establishing the system of production domesticization arisesing tentatively. At this stage , because of reform and opening-up and national attention , and study the improvement of the development environment and international environment, research , development and all making considerable progress in production domesticization of the products of the technology of numerical control of our country.The third stage is during the " Ninth Five-Year Plan Period " on the later stage in " the Eighth Five-Year Plan Period " of the country, namely implement the research of industrialization, enter market competition stage. At this stage , madesubstantive progress in industrialization of the domestic numerical control equipment of our country. In latter stage for " the Ninth Five-Year Plan ", the domestic occupation rate of market of the domestic numerical control lathe is up to 50%, it is up to 10% too to mix the domestic numerical control system (popular ).Make a general survey of the development course in the past 50 years of technology of numerical control of our country, especially through tackling key problems of 4 Five-Year Plans, all in all has made following achievements.a.Have establish the foundation of the technical development of numerical control, has mastered modern numerical control technology basically. Our country has already, the numerical control host computer , basic technology of special plane and fittings grasped and driven from the numerical control system and servoly basically now, among them most technology have already possessed and commercialized the foundation developed , some technology has already, industrialization commercialized.b.Have formed the industrial base of numerical control tentatively. In tackling key problems the foundation that the achievement and some technology commercialize , set up the systematic factories of numerical control with production capacity in batches such as numerical control in Central China , numerical control of the spaceflight etc.. Electrical machinery plant of Lanzhou, such factory and the first machine tool plant of Beijing , the first machine tool plant of Jinan ,etc. several numerical control host computer factories of a batch of servo systems and servo electrical machineries as the numerical control in Central China,etc.. These factories have formed the numerical control industrial base of our country basically.c.Have set up a numerical control research, development , managerial talents basic team . Though has made considerable progress in research and development and industrialization of numerical control technology, but we will realize soberly, the research and development of the technology of advanced numerical control of our country, especially there is greater disparity in current situation and current demand of our country of engineering level in industrialization. Though very fast from watching the development of our country vertically, have disparity horizontally more than (compare foreign countries with ) not merely engineering level, there is disparity too in development speed in some aspects, namely the engineering level disparity between some high-grade , precision and advanced numerical control equipment has the tendency to expand .Watch from world , estimate roughly as follows about the engineering level of numerical control of our country and industrialization level.a.On the engineering level, in probably backward 10- 1 years with the advanced level in foreign countries, it is bigger in high-quality precision and sophisticated technology.b.On the industrialization level, the occupation rate of market is low, the variety coverage rate is little, have not formed the large-scale production yet; The specialized level of production of function part and ability of forming a complete set are relatively low; Appearance quality is relatively poor; Dependability is not high, the commercialized degree is insufficient; Ones own brand effect that the domestic numerical control system has not been set up yet, users have insufficient confidence.c.On the ability of sustainable development, research and development of numerical control technology , project ability are relatively weak to the competition; It is not strong that the technological application of numerical control expands dynamics;Research , formulation that relevant standards are normal lag behind. It is analysed that the main reason for having above-mentioned disparity has the following several respect.a.Realize the respect. Know to industrys process arduousness , complexity and long-term characteristic of domestic numerical control insufficiently; It is difficult to underestimate to add strangling , system ,etc. to the unstandard , foreign blockade of the market; It is not enough to analyse to the technological application level and ability of numerical control of our country.b.System. Pay close attention to numerical control industrialization many in the issue , consider numerical control industrialization little in the issue synthetically in terms of the systematic one , industry chain in terms of technology; Have not set up related system , perfect training , service network of intact high quality ,etc. and supported the system.c.Mechanism. It causes the brain drain, restraining technology and technological route from innovating again , products innovation that the bad machine is made, and has restricted the effective implementation of planning , has often planned the ideal , implement the difficulty.d.Technology. The autonomous innovation in technology of enterprises is indifferent, the project of key technology is indifferent. The standard of the lathe lags behind, the level is relatively low, it is not enough for new standard of the numerical control system to study.3 pairs of strategic thinking of technology and industrialized development of numerical control of our country 3.1 Strategic considerationOur country make big country, industry is it is it accept front instead of transformation of back end to try ones best to want in shifting in world, namely should master and make key technology advancedly, otherwise in a new round ofinternational industrial structure adjustment, the manufacturing industry of our country will step forward and " leave the core spaces ". We regard resource , environment , market as the cost, it is only an international " machining center " in the new economic pattern of the world to exchange the possibility got and " assemble the centre ", but not master the position of the manufacturing center of key technology , will so influence the development process of the modern manufacturing industry of our country seriously. We should stand in the height of national security strategy paying attention to numerical control technology and industrys question , at first seen from social safety, because manufacturing industry whether our country obtain employment most populous trade, the development of manufacturing industry not only can improve the peoples living standard but also can alleviate the pressure of employment of our country , ensure the stability of the society; Secondly seen from national defence security, the western developed country has classified all the high-grade , precision and advanced numerical control products as the strategic materials of the country, realizing the embargo and restriction to our country, " Toshiba incident " and " Cox Report " is the best illustration.3.2 Development tacticsProceed from the angles of the fundamental realities of the country of our country, regard the strategic demand of the country and market demand of national economy as the direction, regard improving our country and making the comprehensive competitive power of equiping industry and industrialization level as the goal, use the systematic method , be able to choose to make key technology upgraded in development of equiping industry and support technology supporting the development of industrialization in our country in initial stage of 21st century in leading factor, the ability to supply the necessary technology realizes making the jumping development of the equiping industry as the content of research and development.Emphasize market demand is a direction, namely take terminal products of numerical control as the core, with the complete machine (Such as the numerical control lathe having a large capacity and a wide range, milling machine , high speed high precise high-performance numerical control lathe , digitized machinery of model , key industry key equipment ,etc.) drive the development of the numerical control industry. Solve the numerical control system and relevant functions part especially The dependability that (digitized servo system and electrical machinery , high speed electric main shaft system and new-style enclosure that equip ,etc. ) and production scale question. There are no products that scale will not have high dependability ; Will not have cheap and products rich in the competitiveness without scale ; Certainly, it is difficult to have day holding up ones head finally that there is no scale Chinese numerical control equipment.In equiping researching and developing high-grade , precision and advancedly , should emphasize the production, learning and research and close combination of the end user, regard " drawing, using, selling " as the goal, tackle key problemsaccording to the national will, in order to solve the needing badly of the country. Numerical control technology, emphasized innovation, put emphasis on researching and developing the technology and products with independent intellectual property right before the competition, establish the foundation for the industry of numerical control of our country , sustainable development of equipment manufacture and even the whole manufacturing industry.List of references:[1]China machine tool industrial association Development department of the trade. CIMT2001 tour [J ]. The manufacturing technology in the world and equiping the market, 2001 (3): 18-20.[2]The roof beam trains a king to declare , the distribution is helped. New tendency [J ] of the technical development of the lathe . The manufacturing technology in the world and equiping the market, 2001 (3): 21-28.[3]China machine tool industrial association Systematic branch of numerical control. CIMT2001 tour [J ]. The manufacturing technology in the world and equiping the market, 2001 (5): 13-17.[4]Yang XueTong, Li DongRu, He WenLi ,etc.? Numerical control lathe technical development strategic research [M ] from now to century. Beijing: State Bureau of Machinery Industries, 2000.。
机床数控技术发展史论文

数控技术发展历史、现状及趋势机自1107 焦隆 1110310710 摘要:我是机电信息系机械设计制造及其自动化专业的一名学生,《机床数控技术》是我们这个学期的一门必修课,并且我将来可能从事这方面的工作,为此,我要掌握一些有关数控方面的知识,我会本着认真的态度对待此门课的学习,提高自己的专业知识,接下来我将介绍一下我对数控的发展史、现状以及趋势的一些认识。
关键字:发展历史、现状、发展趋势正文:1数控的发展历史数控技术,简称数控(Numerical Control)是指用数字、文字、符号组成的数字指令来实现一台或多台机械设备动作控制的技术。
数控一般是指采用通用或专用计算机实现数字程序控制,因此数控也称为计算机数控。
1946年诞生了世界上第一台电子计算机,这表明人类创造了可增强和部分代替脑力劳动的工具。
它与人类在农业、工业社会中创造的那些只是增强体力劳动的工具相比,起了质的飞跃,为人类进入信息社会奠定了基础。
6年后,即在1952年,计算机技术应用到了机床上,在美国诞生了第一台数控机床。
从此,传统机床产生了质的变化。
近半个世纪以来,数控系统经历了两个阶段和六代的发展。
1.1数控(NC)阶段(1952~1970年)早期计算机的运算速度低,对当时的科学计算和数据处理影响还不大,但不能适应机床实时控制的要求。
人们不得不采用数字逻辑电路"搭"成一台机床专用计算机作为数控系统,被称为硬件连接数控(HARD-WIRED NC),简称为数控(NC)。
随着元器件的发展,这个阶段历经了三代,即1952年的第一代--电子管;1959年的第二代--晶体管;1965年的第三代--小规模集成电路。
1.2计算机数控(CNC)阶段(1970年~现在)到1970年,通用小型计算机业已出现并成批生产。
于是将它移植过来作为数控系统的核心部件,从此进入了计算机数控(CNC)阶段到1971年,美国INTEL 公司在世界上第一次将计算机的两个最核心的部件--运算器和控制器,采用大规模集成电路技术集成在一块芯片上,称之为微处理器(MICROPROCESSOR),又可称为中央处理单元(简称CPU)。
机械设计制造及其自动化毕业论文(优选10篇)

机械设计制造及其自动化毕业论文主要是对各种工业机械装备及机电产品从设计、制造、运行控制到生产过程的企业管理的研究,再以文章的形式表达出来的。
本篇文章就向大家介绍一些机械设计制造及其自动化毕业论文范文,希望对大家写作时有所帮助。
机械设计制造及其自动化毕业论文优选10篇之第一篇:计算机技术在机械设计制造及其自动化中的应用摘要:机械设计制造是我国国民经济的重要根底,也为其他行业的开展提供着强有力的支持。
将计算机技术有效应用于机械设备的设计、制造和自动化中,已经成为了机械产品设计制造和自动化行业开展的必然趋势。
关键词:计算机技术;机械设计制造;自动化;实践应用;1 机械设计制造及其自动化的含义机械设计制造及其自动化是对各种各样的机械、设备、机电产品的设计、制造、运行等过程进行研究,并对与之有着密切关系的企业综合管理技术进行研究的学科[1],是随着社会进步开展而产生的一个必不可少的行业。
2 计算机技术在机械设计制造和自动化中应用的现状在机械设计制造和自动化行业中,计算机技术在的应用已越来越广泛,尤其在对精密度要求极高的重点工程中起着至关重要的作用。
如在以机械设计、自动化为支撑的集成电路制造产业、航天航空设备制造产业、新型高科技武器制造产业中,都有计算机技术的应用。
在机械设计制造、自动化中,计算机技术的实践应用主要表达在辅助技术、3D技术、仿真技术和数控机床技术4个方面。
3 计算机技术应用在机械设计制造及其自动化中的实际情况3.1 辅助技术的应用计算机辅助技术在机械设计制造及其自动化中的应用主要表达在以下几个方面:〔1〕目前的机械设备精密程度很高,在机械图纸设计时,人工绘制存在着诸多困难,可以有效地利用图纸设计软件〔如CAM、CAD等构图软件〕进行绘图;〔2〕利用计算机辅助技术可以更加直观地了解机械设备的各项参数,便于设计人员及时发现应用过程中存在的问题;〔3〕相较于传统的手工绘图,计算机辅助技术可以更简单地完成图纸的屡次编辑,大大提升工作效率。
机械制造及其自动化专业英语自我介绍

机械制造及其自动化专业英语自我介绍English: Hello, my name is [Your Name], and I am a graduate student majoring in Mechanical Manufacturing and its Automation. I have a strong passion for the field of mechanical engineering and automation, and I am excited to continue expanding my knowledge and skills in this area. Throughout my academic career, I have been exposed to a wide range of courses that have equipped me with a solid foundation in mechanics, materials science, manufacturing processes, and automation technologies. I have also gained practical experience through internships and projects, where I have had the opportunity to apply theoretical concepts to real-world engineering problems. I am proficient in CAD software, such as SolidWorks, and have experience working with CNC machines and robotics systems. I am a detail-oriented and analytical thinker, with a strong problem-solving ability that allows me to effectively troubleshoot and optimize mechanical systems. I am confident that my academic background, technical skills, and passion for mechanical engineering make me a strong candidate for pursuing a career in the field of mechanical manufacturing and automation.中文翻译: 你好,我叫[你的名字],我是一个主修机械制造及其自动化的研究生。
机械式的 英文作文

机械式的英文作文英文:Mechanical devices have been a part of our lives for centuries, and they continue to play a vital role in our daily routines. From the simple machines like the wheel and lever to the complex ones like automobiles and airplanes, mechanical devices have revolutionized the way we live.One of the advantages of mechanical devices is their reliability. They are designed to perform a specific function repeatedly without fail. For example, a clock is a mechanical device that tells time accurately and consistently. Similarly, a car engine is a mechanical device that provides power to the vehicle and keeps it running smoothly.Another advantage of mechanical devices is their ease of maintenance. Unlike electronic devices, mechanical devices can be repaired or replaced with simple tools andbasic knowledge. For instance, if a bicycle chain breaks,it can be easily replaced with a new one. On the other hand, if a computer motherboard fails, it requires specialized knowledge and equipment to fix it.Despite their advantages, mechanical devices also have their limitations. They are often bulky and require a lotof space to operate. For example, a steam engine requires a large boiler to produce steam, which takes up a lot of space. Additionally, mechanical devices are often noisy and produce vibrations, which can be unpleasant for some people.中文:机械装置已经成为我们生活中的一部分几个世纪了,它们继续在我们的日常生活中发挥着重要作用。
关于机床的英文作文

关于机床的英文作文英文回答:As a machine tool, a lathe is used to shape metal or other materials by rotating the workpiece against a cutting tool. It is an essential tool in manufacturing, especially in the production of cylindrical parts such as shafts, bolts, and bearings.A lathe consists of several components, including the bed, headstock, tailstock, and carriage. The bed is the base of the machine and supports the other components. The headstock holds the workpiece and rotates it at a specific speed. The tailstock supports the other end of the workpiece and can be adjusted to accommodate different lengths. The carriage moves along the bed and holds the cutting tool.To operate a lathe, the operator first secures the workpiece between the headstock and tailstock. Then, theyadjust the cutting tool and move the carriage along the bed to make the desired cuts. The operator must be skilled in using the lathe and have a good understanding of the materials being worked on to ensure accurate and efficient production.中文回答:作为一种机床,车床用于通过将工件旋转对着切削工具来加工金属或其他材料。
机械设计的职业规划英语作文

机械设计的职业规划英语作文English:As a mechanical design engineer, my career planning includes continuously enhancing my technical skills and knowledge in the field of mechanical design, staying updated with the latest industry trends and technologies, and aiming to become a subject matter expert in a specific area of mechanical engineering. I plan to pursue further education and certifications to deepen my expertise and credibility in the field. In addition, I aim to gain practical experience through internships and hands-on projects to apply theoretical knowledge into real-world applications. Lastly, I aspire to take on leadership roles in project management to hone my communication, problem-solving, and decision-making skills in order to effectively lead a team of engineers and drive successful project outcomes.中文翻译:作为一名机械设计工程师,我的职业规划包括不断提升自己在机械设计领域的技术技能和知识,保持对最新行业趋势和技术的了解,以及努力成为机械工程的某个特定领域的专家。
- 1、下载文档前请自行甄别文档内容的完整性,平台不提供额外的编辑、内容补充、找答案等附加服务。
- 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
- 3、如文档侵犯您的权益,请联系客服反馈,我们会尽快为您处理(人工客服工作时间:9:00-18:30)。
数控技术和装备发展趋势及对策数控技术是用数字信息对机械运动和工作过程进行控制的技术,数控装备是以数控技术为代表的新技术对传统制造产业和新兴制造业的渗透形成的机电一体化产品,即所谓的数字化装备,其技术范围覆盖很多领域:(1)机械制造技术;(2)信息处理、加工、传输技术;(3)自动控制技术;(4)伺服驱动技术;(5)传感器技术;(6)软件技术等。
1 数控技术的发展趋势数控技术的应用不但给传统制造业带来了革命性的变化,使制造业成为工业化的象征,而且随着数控技术的不断发展和应用领域的扩大,他对国计民生的一些重要行业(IT、汽车、轻工、医疗等)的发展起着越来越重要的作用,因为这些行业所需装备的数字化已是现代发展的大趋势。
从目前世界上数控技术及其装备发展的趋势来看,其主要研究热点有以下几个方面。
1.1高速、高精加工技术及装备的新趋势效率、质量是先进制造技术的主体。
高速、高精加工技术可极大地提高效率,提高产品的质量和档次,缩短生产周期和提高市场竞争能力。
为此日本先端技术研究会将其列为5大现代制造技术之一,国际生产工程学会(CIRP)将其确定为21世纪的中心研究方向之一。
在轿车工业领域,年产30万辆的生产节拍是40秒/辆,而且多品种加工是轿车装备必须解决的重点问题之一;在航空和宇航工业领域,其加工的零部件多为薄壁和薄筋,刚度很差,材料为铝或铝合金,只有在高切削速度和切削力很小的情况下,才能对这些筋、壁进行加工。
近来采用大型整体铝合金坯料“掏空”的方法来制造机翼、机身等大型零件来替代多个零件通过众多的铆钉、螺钉和其他联结方式拼装,使构件的强度、刚度和可靠性得到提高。
这些都对加工装备提出了高速、高精和高柔性的要求。
从EMO2001展会情况来看,高速加工中心进给速度可达80m/min,甚至更高,空运行速度可达100m/min左右。
目前世界上许多汽车厂,包括我国的上海通用汽车公司,已经采用以高速加工中心组成的生产线部分替代组合机床。
美国CINCINNATI公司的HyperMach机床进给速度最大达60m/min,快速为100m/min,加速度达2g,主轴转速已达60 000r/min。
加工一薄壁飞机零件,只用30min,而同样的零件在一般高速铣床加工需3h,在普通铣床加工需8h;德国DMG 公司的双主轴车床的主轴速度及加速度分别达12*!000r/mm和1g。
在加工精度方面,近10年来,普通级数控机床的加工精度已由10μm提高到5μm,精密级加工中心则从3~5μm,提高到1~1.5μm,并且超精密加工精度已开始进入纳米级(0.01μm)。
在可靠性方面,国外数控装置的MTBF值已达6 000h以上,伺服系统的MTBF值达到30000h以上,表现出非常高的可靠性。
为了实现高速、高精加工,与之配套的功能部件如电主轴、直线电机得到了快速的发展,应用领域进一步扩大。
1.2 5轴联动加工和复合加工机床快速发展采用5轴联动对三维曲面零件的加工,可用刀具最佳几何形状进行切削,不仅光洁度高,而且效率也大幅度提高。
一般认为,1台5轴联动机床的效率可以等于2台3轴联动机床,特别是使用立方氮化硼等超硬材料铣刀进行高速铣削淬硬钢零件时,5轴联动加工可比3轴联动加工发挥更高的效益。
但过去因5轴联动数控系统、主机结构复杂等原因,其价格要比3轴联动数控机床高出数倍,加之编程技术难度较大,制约了5轴联动机床的发展。
当前由于电主轴的出现,使得实现5轴联动加工的复合主轴头结构大为简化,其制造难度和成本大幅度降低,数控系统的价格差距缩小。
因此促进了复合主轴头类型5轴联动机床和复合加工机床(含5面加工机床)的发展。
在EMO2001展会上,新日本工机的5面加工机床采用复合主轴头,可实现4个垂直平面的加工和任意角度的加工,使得5面加工和5轴加工可在同一台机床上实现,还可实现倾斜面和倒锥孔的加工。
德国DMG公司展出DMUVoution系列加工中心,可在一次装夹下5面加工和5轴联动加工,可由CNC系统控制或CAD/CAM直接或间接控制。
1.3 智能化、开放式、网络化成为当代数控系统发展的主要趋势21世纪的数控装备将是具有一定智能化的系统,智能化的内容包括在数控系统中的各个方面:为追求加工效率和加工质量方面的智能化,如加工过程的自适应控制,工艺参数自动生成;为提高驱动性能及使用连接方便的智能化,如前馈控制、电机参数的自适应运算、自动识别负载自动选定模型、自整定等;简化编程、简化操作方面的智能化,如智能化的自动编程、智能化的人机界面等;还有智能诊断、智能监控方面的内容、方便系统的诊断及维修等。
为解决传统的数控系统封闭性和数控应用软件的产业化生产存在的问题。
目前许多国家对开放式数控系统进行研究,如美国的NGC(The Next Generation Work-Station/Machine Control)、欧共体的OSACA(Open System Architecture for Control within Automation Systems)、日本的OSEC(Open System Environment for Controller),中国的ONC(Open Numerical Control System)等。
数控系统开放化已经成为数控系统的未来之路。
所谓开放式数控系统就是数控系统的开发可以在统一的运行平台上,面向机床厂家和最终用户,通过改变、增加或剪裁结构对象(数控功能),形成系列化,并可方便地将用户的特殊应用和技术诀窍集成到控制系统中,快速实现不同品种、不同档次的开放式数控系统,形成具有鲜明个性的名牌产品。
目前开放式数控系统的体系结构规范、通信规范、配置规范、运行平台、数控系统功能库以及数控系统功能软件开发工具等是当前研究的核心。
网络化数控装备是近两年国际著名机床博览会的一个新亮点。
数控装备的网络化将极大地满足生产线、制造系统、制造企业对信息集成的需求,也是实现新的制造模式如敏捷制造、虚拟企业、全球制造的基础单元。
国内外一些著名数控机床和数控系统制造公司都在近两年推出了相关的新概念和样机,如在EMO2001展中,日本山崎马扎克(Mazak)公司展出的“CyberProduction Center”(智能生产控制中心,简称CPC);日本大隈(Okuma)机床公司展出“IT plaza”(信息技术广场,简称IT广场);德国西门子(Siemens)公司展出的Open Manufacturing Environment(开放制造环境,简称OME)等,反映了数控机床加工向网络化方向发展的趋势。
1.4 重视新技术标准、规范的建立1.4.1 关于数控系统设计开发规范如前所述,开放式数控系统有更好的通用性、柔性、适应性、扩展性,美国、欧共体和日本等国纷纷实施战略发展计划,并进行开放式体系结构数控系统规范(OMAC、OSACA、OSEC)的研究和制定,世界3个最大的经济体在短期内进行了几乎相同的科学计划和规范的制定,预示了数控技术的一个新的变革时期的来临。
我国在2000年也开始进行中国的ONC数控系统的规范框架的研究和制定。
1.4.2 关于数控标准数控标准是制造业信息化发展的一种趋势。
数控技术诞生后的50年间的信息交换都是基于ISO6983标准,即采用G,M代码描述如何(how)加工,其本质特征是面向加工过程,显然,他已越来越不能满足现代数控技术高速发展的需要。
为此,国际上正在研究和制定一种新的CNC系统标准ISO14649(STEP-NC),其目的是提供一种不依赖于具体系统的中性机制,能够描述产品整个生命周期内的统一数据模型,从而实现整个制造过程,乃至各个工业领域产品信息的标准化。
STEP-NC的出现可能是数控技术领域的一次革命,对于数控技术的发展乃至整个制造业,将产生深远的影响。
首先,STEP-NC提出一种崭新的制造理念,传统的制造理念中,NC 加工程序都集中在单个计算机上。
而在新标准下,NC程序可以分散在互联网上,这正是数控技术开放式、网络化发展的方向。
其次,STEP-NC数控系统还可大大减少加工图纸(约75%)、加工程序编制时间(约35%)和加工时间(约50%)。
目前,欧美国家非常重视STEP-NC的研究,欧洲发起了STEP-NC的IMS计划(1999.1.1~2001.12.31)。
参加这项计划的有来自欧洲和日本的20个CAD/CAM/CAPP/CNC用户、厂商和学术机构。
美国的STEP Tools 公司是全球范围内制造业数据交换软件的开发者,他已经开发了用作数控机床加工信息交换的超级模型(Super Model),其目标是用统一的规范描述所有加工过程。
目前这种新的数据交换格式已经在配备了SIEMENS、FIDIA以及欧洲OSACA-NC数控系统的原型样机上进行了验证。
2.对我国数控技术及其产业发展的基本估计我国数控技术起步于1958年,近50年的发展历程大致可分为3个阶段:第一阶段从1958年到1979年,即封闭式发展阶段。
在此阶段,由于国外的技术封锁和我国的基础条件的限制,数控技术的发展较为缓慢。
第二阶段是在国家的“六五”、“七五”期间以及“八五”的前期,即引进技术,消化吸收,初步建立起国产化体系阶段。
在此阶段,由于改革开放和国家的重视,以及研究开发环境和国际环境的改善,我国数控技术的研究、开发以及在产品的国产化方面都取得了长足的进步。
第三阶段是在国家的“八五”的后期和“九五”期间,即实施产业化的研究,进入市场竞争阶段。
在此阶段,我国国产数控装备的产业化取得了实质性进步。
在“九五”末期,国产数控机床的国内市场占有率达50%,配国产数控系统(普及型)也达到了10%。
纵观我国数控技术近50年的发展历程,特别是经过4个5年计划的攻关,总体来看取得了以下成绩。
a.奠定了数控技术发展的基础,基本掌握了现代数控技术。
我国现在已基本掌握了从数控系统、伺服驱动、数控主机、专机及其配套件的基础技术,其中大部分技术已具备进行商品化开发的基础,部分技术已商品化、产业化。
b.初步形成了数控产业基地。
在攻关成果和部分技术商品化的基础上,建立了诸如华中数控、航天数控等具有批量生产能力的数控系统生产厂。
兰州电机厂、华中数控等一批伺服系统和伺服电机生产厂以及北京第一机床厂、济南第一机床厂等若干数控主机生产厂。
这些生产厂基本形成了我国的数控产业基地。
c.建立了一支数控研究、开发、管理人才的基本队伍。
虽然在数控技术的研究开发以及产业化方面取得了长足的进步,但我们也要清醒地认识到,我国高端数控技术的研究开发,尤其是在产业化方面的技术水平现状与我国的现实需求还有较大的差距。
虽然从纵向看我国的发展速度很快,但横向比(与国外对比)不仅技术水平有差距,在某些方面发展速度也有差距,即一些高精尖的数控装备的技术水平差距有扩大趋势。