共查询到19条相似文献,搜索用时 140 毫秒
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具有车铣能力的车铣加工中心是实现完整加工的典型机床,更由于车铣技术在加工微小型回转类零件中所拥有的独特优势,使微小型零件的完整加工成为可能;加工实验证明,对于以回转体为基体的微小型零件的加工,车铣加工中心将微细车铣技术和完整加工完美地结合在一起. 相似文献
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车铣复合加工技术能实现以铣代车或磨高速切削回转体零件。基于此技术的微细切削无论是在生产率还是在加工表面质量上,较其它加工技术而言,更适合于微细轴类零件和具有复杂型面的微小型零件的加工。通过微细车铣切削微细丝杠试验,从切削用量和加工质量及刀具磨损方面研究了车铣复合加工技术在解决微细丝杠加工中的应用。结果表明,基于车铣复合加工技术能够实现微细丝杠的高速切削。该技术非常适合于微细丝杠零件加工。 相似文献
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介绍了一种多功能车铣镗复合专用机床结构,通过机床布局的结合方式变换,在一次装夹中完成对回转体零件车铣加工和支架零件铣镗加工的效果,做到结合方便、一机多用,实现机械加工的车铣复合、铣镗复合加工的综合功能。 相似文献
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干式高速车铣吕合金已加工表面形成机理研究 总被引:1,自引:0,他引:1
高速车铣加工是一种新的先进加工技术,可望在干式条件下实现回转体零件的高速切削。本文主要研究干式条件下高速车铣铝合金时已加工表面的形成机理及影响因素。 相似文献
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《新技术新工艺》2017,(3)
随着车铣复合加工技术的不断发展,复杂异形回转类零件越来越多地出现在工程应用中,为了满足这类工件的加工要求,正交车铣加工方法正在得到广泛的应用。在分析了大直径套筒类工件的内壁结构后,通过应用VERICUT软件进行加工仿真,提出了用正交车铣的加工方法来实现加工,通过铣刀高速切削和工件旋转的合成运动来实现对该类零件的切削加工;在对大直径套筒类工件内壁的加工方法的研究中,总结出刀具附加长度补偿量与工件在加工过程中过切的关系,首次提出并建立了正交车铣内表面刀具长度附加补偿量,确定了对于该类零件加工过程中加工刀具基准点的偏差规律,即刀具长度补偿算法规律,成功地解决了正交车铣大型复杂异形回转类零件的过切问题,通过添加宏程序段提高了编程效率,缩短了加工周期,保证了加工质量。 相似文献
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林惠标 《机械工程与自动化》2019,(4)
薄壁回转型零件的外型面在精车加工过程中容易产生变形,为了保证加工生产出优质合格的零件,以薄壁回转型后轴颈外型面精车加工为例,借助Solidworks Simulation有限元分析插件,研究设计一种带液性塑料心轴的夹具,以解决薄壁回转型零件精车加工易变形的问题。这种工装夹具的结构和设计方法可以为薄壁回转件的夹具设计提供参考。 相似文献
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GSHM7060四轴联动卧式加工中心的研制 总被引:2,自引:0,他引:2
卧式加工中心是一种高效、高性能的数控机床,在一次装夹中可进行四个面的铣削、钻孔、扩孔、镗孔、铰削、攻丝等多种工序的加工,最适用于中、小批量、多品种的箱体零件以及曲型零件的加工。本文介绍了一种四轴联动卧式加工中心的机械结构,特点及其关键技术,通过建立高速加工中心机床的三维有限元模型,利用有限元分析软件对机床进行动力学分析,找出影响整机动态性能的薄弱环节并提出结构设计修改方向,从而使机床具有更好的静态、动态特性。 相似文献
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介绍了1台新型双主轴双刀架精密数控车铣复合加工中心。详细阐述了加工中心机械主体结构及主要技术参数,建立了加工中心的有限元模型并进行了模态分析,给出了其五阶固有频率和固有振型,并对机床进行了模态分析试验。最后总结了该加工中心开发过程中的相关难点及解决方案。 相似文献
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COMPARISON OF MACHINED SURFACE QUALITY OBTAINED BY HIGH-SPEED MACHINING AND CONVENTIONAL TURNING 总被引:1,自引:0,他引:1
《Machining Science and Technology》2007,11(4):531-551
The aim of this article is to present some results of investigations on machined surface quality produced by high-speed cutting technologies and conventional turning. Machined surface quality demands significantly affect cost of production and increase the price of a product. Hence, obtaining a good quality of surface while lowering production costs has been metalworkers' preoccupation since beginning their jobs. One possible approach for solving that problem is introducing high-speed machining facilities into production. High-speed machining allows higher productivity, excellent surface finish and good dimensional accuracy in the manufacturing process. Therefore these technologies have considerable advantages over traditional machining technologies. In this article some high-speed machining tests on different materials with different hardness, different machinability index, and by using different experimental approaches have been illustrated. Hard turning and high-speed turn milling, in particular, have been analyzed from the aspect of applicability of these technologies on conventional machines, since these machines still can be found in many manufacturing facilities. Results obtained through these experiments confirmed advantages of high-speed technologies over conventional machining. It has been shown that common production machines, e.g., a universal lathe, in combination with new cutting tools, might be use effectively in some high-speed applications also. 相似文献
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Sabahudin Ekinović Edin Begović Amira Silajdžija 《Machining Science and Technology》2013,17(4):531-551
The aim of this article is to present some results of investigations on machined surface quality produced by high-speed cutting technologies and conventional turning. Machined surface quality demands significantly affect cost of production and increase the price of a product. Hence, obtaining a good quality of surface while lowering production costs has been metalworkers' preoccupation since beginning their jobs. One possible approach for solving that problem is introducing high-speed machining facilities into production. High-speed machining allows higher productivity, excellent surface finish and good dimensional accuracy in the manufacturing process. Therefore these technologies have considerable advantages over traditional machining technologies. In this article some high-speed machining tests on different materials with different hardness, different machinability index, and by using different experimental approaches have been illustrated. Hard turning and high-speed turn milling, in particular, have been analyzed from the aspect of applicability of these technologies on conventional machines, since these machines still can be found in many manufacturing facilities. Results obtained through these experiments confirmed advantages of high-speed technologies over conventional machining. It has been shown that common production machines, e.g., a universal lathe, in combination with new cutting tools, might be use effectively in some high-speed applications also. 相似文献
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论述了一种高速铣削加工机床主轴系统中,力柄安全锁紧防松机构的工作原理和理论模型,并将此结构应用于中小型高速数控铣床和立式加工中心主轴系统中,经过试验和生产应用表明,该刀柄系统的回转精度和可靠性有了较大的提高. 相似文献
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论述了一种高速铣削加工机床主轴系统中刀柄安全锁紧防松机构的工作原理和理论模型,并将此结构应用于中小型高速数控铣床和立式加工中心主轴系统中,经过试验和生产应用表明,该刀柄系统的回转精度和可靠性有了较大的提高。 相似文献