共查询到20条相似文献,搜索用时 93 毫秒
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本文阐述了Sinumerik840D数控系统在CAD/CAM高速加工中的应用。对提高数控系统加工速度及平顺性的需求与策略进行了分析,介绍Sinumerik 840D数控系统高级编程指令中的G642功能及COMPCAD功能,并进行了有针对性的应用举例。Sinumerik 840D数控系统高级编程指令的开发为高速加工提供了一种新的思路。 相似文献
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介绍了数控机床高精度加工中机床定位精度对加工的影响,分析了典型多孔位零件加工中机床定位精度对加工精度的影响。利用配置OKUMA数控系统的龙门加工中心实现数控系统的螺距误差补偿功能,应用Renishaw激光干涉仪检测系统对机床定位精度进行检测与补偿,使机床定位精度进一步提高,满足了零件的加工要求,对OKUMA数控系统的实际应用提供一定参考。 相似文献
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论述了机床数控系统的现状和发展趋势,分析了开放式数控系统的体系结构,指出了STEP-NC是下一代数控系统发展方向之一。数控系统通过不断提高插补精度和采用数字总线伺服来提高加工精度的同时,采用信息物理深度融合(CPS)技术,提高数控系统的人机交互、网络化和智能化水平。现在数控系统不仅是生产加工设备的控制系统,也成了智能工厂不可缺少的信息节点。 相似文献
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介绍了涡旋式空气压缩机涡盘渐开线型面加工专用数控系统,并研究了专用数控系统的硬件结构,以及运用系统工程的思想对其软件进行开发的方法。该数控系统经实际生产运行证明其加工精度和工作可靠性均较高,为我们在专用数控系统软件的开发方面提供了一定的经验。 相似文献
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论述了机床数控系统的现状和发展趋势,分析了开放式数控系统的体系结构,指出了STEP-NC是下一代数控系统发展方向之一.数控系统通过不断提高插补精度和采用数字总线伺服来提高加工精度的同时,采用信息物理深度融合(CPS)技术,提高数控系统的人机交互、网络化和智能化水平.现在数控系统不仅是生产加工设备的控制系统,也成了智能工厂不可缺少的信息节点. 相似文献
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Off-line optimization on NC machining based on virtual machining 总被引:4,自引:3,他引:1
J. G. Li H. Zhao Y. X. Yao C. Q. Liu 《The International Journal of Advanced Manufacturing Technology》2008,36(9-10):908-917
Virtual machining, based-on the model of a machining system, aims to simulate, evaluate and optimize the actual machining process with high sense of reality. It provides digital off-line optimization tools for NC machining. Taking advantage of virtual machining used in machining process simulation, one can build the framework of optimization system on NC machining so that the processes of reliability verification, cutting parameter optimization and error compensation can be integrated into one system to improve machining processes comprehensively. The optimization is realized via modifying NC programs. Several key issues such as virtual machining, cutting parameters optimization, error prediction and compensation are also highlighted. Optimization systems based on virtual machining have been developed to demonstrate the effectiveness of off-line optimization for different purposes. The results show that the machining process is obviously improved. 相似文献
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虚拟物理数控加工仿真主要研究加工过程中切削力、切削热、机床运动误差、加工系统颤振以及负载变化引起加工结果变化的预测问题,目前已成为虚拟制造最具魅力的地方。通过在VERICUT下的电吹风外壳模盖的虚拟数控加工刀具轨迹优化研究,为复杂曲面零件的加工生产提供了有效参考。 相似文献
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M.-Y. Yang J.-H. Park 《The International Journal of Advanced Manufacturing Technology》2002,19(9):664-668
This paper deals with the design and implementation of an open architecture CNC system for wire electrical discharge machining
(WEDM) with a consideration of the differences between WEDM and NC cutting machines. Work using open architecture controllers
(OACs) has focused mainly on metal cutting machines. WEDM has many aspects similar to milling machines. However, there are
differences in the machining processes and control strategies. To close the gap between previous general work on OAC and the
WEDM specific needs, an open architecture NC model for WEDM comprised of a synchronisation kernel and an NC functional module
is proposed. The proposed CNC system is applied to an existing commercial WEDM system by a retrofitting method. A precise
NURBS interpolation function is implemented and sample runs are conducted with a NURBS interpolator that is added to the proposed
system. 相似文献
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Wang Chenpei Zhou Yunfei Zhou Yanhong Zhou Ji National NC System Engineering Research Center Huazhong University of Science Technology 《机械工程学报(英文版)》2001,(2):144-150
0 INTRODUCTIONWiththedevelopmentofNCmachinetoolsandtheincreasedcomplexityofparts ,theverificationofNC programbecomesmorsandmoreimportantinordertohelpuserdesign partsandenhancethemachiningefficiency ThereliabilityandthevalidityofNCprogramwillinfluencethe… 相似文献
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数控加工中,刀具的选择很重要,不仅影响机床的加工效率,而且直接影响加工质量。对数控刀具总的要求是安装调整方便、刚性好、精度高、耐用度好,在此基础上综合考虑工件材料的切削性能,机床的加工能力,数控加工工序的类型,切削用量以及与机床和数控装置工作范围有关的诸多因素。 相似文献