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创壹数控机床教学与培训软件是以培养数控机床操作、维护和维修为目的而开发的数控机床教学与培训的操作平台.该系统采用虚拟现实技术制作数控机床主机及其部件,并具有3D互动虚拟实验.该系统可以对数控机床的整体机构进行解析,可以对具体部件进行拆卸和安装,对所用电路进行模拟仿真.虚拟故障模拟系统可以进行多种情况下不同部件的机械和电路故障排除进行模拟操作.还设置了与真实检测仪器一样的3D互动虚拟仪器. 相似文献
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基于项目化教学的《数控机床故障诊断与维修》课程改革与实践 总被引：4，自引：0，他引：4
<数控机床故障诊断与维修>是一门理论与实践结合非常紧密的专业课程.其专业性与实践性很强,按照项目化教学方式组织实施课程,有利于实现教学目标.基于项目化教学思路,该课程以数控机床维修工的国家职业技能鉴定要求为依据,设计了数控机床的管理与维护、数控机床机械部件的调整与维修、数控系统的连接与调试等5个学习情境,每个学习情境又分若干个小项目(任务)对学生进行训练. 相似文献
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关于数控机床维护的几个问题 总被引：3，自引：0，他引：3
刘金梁 《赤峰学院学报(自然科学版)》2009,25(8):162-164
数控机床是一种自动化程度较高、结构比较复杂的先进加工设备,也是企业的重点、关键设备.对于数控机床的维护保养要点,本文分别阐述了数控系统的维护要点、机械部件的维护要点、机床精度的维护要点以及液压、气压系统的维护要点.提出了数控机床操作人员一定要严格执行操作规程,充分利用好数控机床.介绍了关于预防性维护的基本知识,强调了维修排故后的总结提高工作的重要作用. 相似文献
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《黄冈职业技术学院学报》2017,(6):120-122
针对当今制造业数控机床维护维修人才的巨大需求、人才培养难度大,使用市场上销售的模拟数控机床电气实训台不能满足维护维修类人才培养的要求,直接对现有的数控机床进行拆装存在很大风险等问题,通过市场调研了解到数控机床电气部分为数控机床的核心之一,又是数控机床故障频发的主要部件,在教学实践中开发和设计可用于数控车床、数控铣床、加工中心等电气类设备的基本电气回路的设计、安装与调试学习和培训的数控机床电气副控制柜,为培养数控机床维护维修类人才提供了平台。 相似文献
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《黄冈职业技术学院学报》2019,(3)
<正>(一)高职组数控机床装调与技术改造比赛团体二等奖全国职业院校技能大赛是中华人民共和国教育部发起,联合国务院有关部门、行业和地方共同举办的一项年度全国性职业教育学生竞赛活动,堪称高职教育的"奥林匹克"。高职组数控机床装调与技术改造赛项,比赛内容包括数控机床电气设计与安装、机械部件装配与调试、故障诊断与维修、数控系统指定功能调试(加装在线智能测量装置、伺服参数优化、FTP功能推送程序、PLC程序开发等)、精度检测、试切件的编程与加工及工件自动测量、职业素养与安全意识等七个任务,全面考察学生的团队协作能力、计划组织能力和数控机床机械装调、电气装调、精度检验、故障诊断和排除、 相似文献
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我校“数控”高职班培养国际中有3项与计算机有关:1.使学生具有数控机床的操作与编程能力;2.使学生具有数控车间的管理能力;3.使学生具有数控机床的维护与修理能力.其中数控机床的维修难度最大.为了使学生具有数控车间的管理能力,开设了《微机应用基础》.为了提高学生的数控编程能力,掌握一般计算机的编程方法,开设了《C语言程序设计》.为了使学生具有数控机床的维修能力,开设了《微机原理及应用》、《电子绘图》、《计算机原理与工控机》三门课. 相似文献
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"数控机床"课程教学方法改革的研究 总被引：1，自引：0，他引：1
为了培养高技能型高素质的数控技术专业学生,按照专业建设的要求,对"数控机床"课程进行教学方法和教学内容的改革与实践.通过细化课程内容,让学生学习更多的数控知识;通过现场教学,让学生真正了解数控机床的结构及其应用,以及数控机床在企业真实生产环境中的作用. 相似文献
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数控机床的普遍使用,迫使使用者掌握更多的数控知识,了解数控车床Z向进给轴的组成与装配方法是重量的一部分。稳定的控制方法(伺服控制)和精密的机械传动部件(滚珠丝杠)是实现数控机床精密加工的手段,而对机械传动部件的精确安装是实现准确位移的保障。如何将这一机械传动的关键部件滚珠丝杠准确安装是数控机床进给机构装配的关键步骤。Z向进给轴精确组装需要一套精良的检测工具,并且检测符合相应的标准。 相似文献
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《海外英语》2007,(5):10-11
Many college freshmen arrive woefully unprepared to do college work, and as disadvantaged populations continue to grow, the share of the American work force that has made it through college is expected to plummet. Many experts blame that educational failure not just on high schools but also on colleges. School & College, a special report by The Chronicle, looks at efforts to fix the system. What reforms would better prepare students for college? What should schools and colleges be doing differently? How should state and federal officials help? 相似文献
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《海外英语》2007,(4):36
There are numbers of crossroads on our long and unpredictable life journey where we totally have no idea about which direction to choose. No matter what our decision is, we should not turn back, but face the music and go ahead instead. I am this kind of girl who always does try without regretting, one example is how I dealt with my love. 相似文献
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Migration occurs behind a variety of reasons and has a great effect on the whole world. People may migrate in order to improve their economic situation, or in order to escape civil strife, persecution, and environmental disasters. The impact of migration is complex, bringing both benefits anddisadvantages. This paper briefly talks about the causes of migration, the allocation of benefits, and the ways in which individual countries and the international community deal with this important subject. 相似文献
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Sister Carrie is one of the most controversial characters in American literature.Thought as a "fallen woman" firstly,she was defined as a "new woman" by some critics later. However, by digging into the motivaton behind the whole process of Carrie's "success", the relationship between Carrie and her creator (the author), the social conditions of then American, it can be found that Carrie has never been free-standing on her thought and she has never found her real-sdf even after becoming a famous actress. In a society dominated by mass consumerism Carrie is only an adherent of her own desires. She also is a representative of all those country girls flooded into cities, a symbol and a sacrifice of the urbanization of America in a time countryside was overcome by cities. 相似文献
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RUZBEHANI Mohsen 《重庆大学学报(英文版)》2004,3(1):20-25
1.IntroductionOne-cyclecontrolmethod,whichwasproposedaboutonedecadeago[1],hasbecomeanattractivemethodinspecialfieldssuchaspowerfactorcorrection[2-6],switchingamplifiers[7,8],etc.Themainideaofthiscontrollerisbasedonintegrationofdiodevoltageinone-cycleandforcesittobeexactlyequaltothereferencevalue.Themainadvantageofthiscontrollerisitsrealtimeabilitytorejectthevariationofinputvoltage[1].Despitethisgreatability,ithasnogoodperformancesinrejectingofloaddisturbanceandfollowingreferencecommands.Espec… 相似文献
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唐芳 《读与写:教育教学刊》2008,5(6)
During interview with English majors, it was found that a majority of students expressed disappointment with their experience of English literature classes. Students' dislike of learning English literature appears to be the major problem of teaching English literature in China. Reader response approach is a good way to solve this problem. In this paper, I explain the rationale behind the reader response approach, such as its origin, definition, features, assumptions, and strategies. Then I illustrate how reader response approach works as a teaching strategy by presenting several teaching models. At last I evaluate its usefuiness for teachers and present the advantages of reader response approach in Chinese context. 相似文献