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基于UG平台叶轮五轴加工工艺及虚拟仿真技术研究 总被引:1,自引:1,他引:0
针对VDW-320五坐标数控机床,在UG平台下,结合典型曲面零件叶轮,研究了其数控编程、后置处理、虚拟仿真等技术.通过验证比较,证明了研究结果的正确性.此项技术解决了VDW-320五轴机床的后置处理即与UG软件的接口问题,可广泛应用到模具、机械、航空、汽车等行业,用来加工各种复杂模具或机械零件. 相似文献
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分析多面体常用加工方法及存在的问题,提出3+2轴定位方式在VDW-320五轴机床加工多面体及斜孔。分析多面体加工工艺、回转坐标换算,应用先进的SINUMERIK 840D图形交互对话式进行数控编程,提出了加工工艺方案。 相似文献
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在五轴数控铣削加工过程中,后置处理属于非常重要的部分,其能够促使CAM系统所产生的刀轨文件变成机床的加工代码。后置处理非常复杂,其关系到刀位文件的坐标转换、转角计算等。笔者具体分析了五轴数控机床的后置处理和加工编程,通过解决大曲率曲面在数控机床加工中的范围狭窄的问题,为广大的技术工作者提供一些关于五轴数控铣削加工的参考资料。 相似文献
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在数控技术中,与三轴加工相比,五轴数控技术的应用在复杂曲面加工过程中具有很高的优势,高性能的五轴数控铣削加工关系到包括导弹、飞机等武器关键零部件的制造水平,因此当前众多国家都对五轴数控加工技术在进行不断地研究提高。但是由于数控机床的运动复杂性和结构多样性,导致五轴数控加工过程中要实现预期的后置处理以及加工编程效果,会具有比较高的技术难度,对于数控机床的运行效率也产生了比较大的制约。本文针对五轴数控技术在铣削加工中的应用进行了探讨,并重点分析了五轴数控铣削加工的后置处理算法以及相应的加工编程。 相似文献
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五轴机床依靠多自由度能够加工复杂形状的零部件的优点使用越来越普通,五轴机床加工零部件过程中,程序的编制绝大多数依靠CAM软件进行后置处理,导入多轴机床实施复杂零件加工。CAM软件进行后置处理过程中都是设定数控机床各轴之间相互正交,本文针对工作台旋转五轴数控机床后置处理算法进行深入研究,推算后置处理算法。 相似文献
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五轴数控加工编程技术复杂和处理信息量大的特点决定了采用手工编程方法难以实现,通常采用UG等自动编程软件对五轴数控加工进行程序编制.从应用UG自动编程软件对造型进行前置和后置处理,得到适合五轴数控机床能够执行的代码指令来研究五轴数控加工程序编制方法,归纳出五轴数控加工编程应遵循的基本原则. 相似文献
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介绍了五轴后置算法,以Global550机床为例开展了五轴加工中心后置处理研究。应用IMSpost软件编写后处理文件,针对部分特殊代码格式及机床的实际结构、轴系进行设置修改,并通过仿真及加工进行了验证。经检测,加工结果符合图样要求,证明后置处理正确可行。 相似文献
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结合 GS5200 型机床的研制情况,详细介绍了高速精密五轴联动龙门加工中心的应用及研发的关键技术. 相似文献
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P. Gray S. Bedi F. Ismail N. Rao G. Morphy 《The International Journal of Advanced Manufacturing Technology》2001,17(8):562-569
The recent growth in hydroforming technology has sparked interest in alternative methods to the current conventional die manufacturing
techniques. Hydroforming dies typically have shallow forming channels and open, low curvature surfaces, making them ideally
suited for 5-axis machining. To fully appreciate the benefits and to properly demonstrate the capabilities of 5-axis machining
for hydroforming dies, a comparison of 5-axis and 3-axis finish machining was done. Two hydroforming die insert sets were
machined on a 5-axis machine with a tilt/rotary table. The tool paths for 5-axis machining were generated using custom software
based on a modified form of a tool positioning strategy called the principal axis method. The quality of generated 3-axis
toolpaths was verified against the machining times of a third set of die inserts, similar to those machined in 5-axis, by
an independent industrial mould and die manufacturer using a 3-axis high-speed machine. A comparison of the generated 3-axis
paths versus the 5-axis paths for one of the die inserts was made using total finish machining tool path lengths to eliminate
differences in machines. The results show that the generated 3-axis tool paths are longer than the 5-axis paths by at least
247%. The paper discusses the different tool-path generation methods along with the geometry of cusp formation and the effect
of tool selection. Methods to improve the 3-axis results are also presented. 相似文献
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介绍了五轴数控机床加工复杂曲面的工作原理,重点分析了五轴数控加工时采用环形铣刀加工复杂曲面的误差模型,提出了误差补偿的具体方法。为提高复杂曲面数控加工精度具有指导意义。 相似文献
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通过分析TarusTPMIL1146油泥数控铣床软硬件的特点,提出了应用powermill软件挖掘设备五轴加工潜能的较全面的解决方案。首先通过研究五轴加工技术,寻找到最高效能的加工策略;然后通过开发机床加工更真实的模拟功能,实现提前预知加工中可能出现的问题;最后编写针对Tarus机床的后置处理文件,实现了Powermill与设备的完全对接。 相似文献
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以UG NX7.5的CAD/CAM为平台,并利用高速加工技术,对汽车门立柱的拉延模进行了数控编程策略设计,切削参数优化,刃具轨迹规划和切削仿真,并在五轴高速加工中心上对研究结果进行了验证. 相似文献
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国内外对五轴数控加工中的扫掠轮廓线的研究往往集中于主轴摆动式机床。本文给出了实际生产中应用广泛的工作台旋转式五轴加工中环形刀具上扫掠轮廓线的显式表达式,分析了扫掠轮廓线在刀具曲面上的几何特性。所用的计算方法高效精确,为复杂曲面加工过程的动态模拟和加工误差的控制奠定了数学基础。 相似文献
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Dr Yean-Ren Hwang Cha-Shong Liang 《The International Journal of Advanced Manufacturing Technology》1998,14(6):399-405
Current computer-aided manufacturing (CAM) systems generate cutter contact points (CC points), cutter location points (CL points) and cutter orientation angles (CO angles) based only on the sculptured surface geometry. However, under certain situations, the cutting errors of 5-axis NC machines are larger than expected using these CC, CL and CO data. It is shown in this paper that the cutting error depends on the structures of 5-axis NC machines as well as the surface geometry. A new algorithm has been developed to estimate the cutting error and calculate the maximum allowable step length for spindle-tilting type 5-axis NC machines. Simulation results show that the new algorithm provides better estimation on the cutting errors for spindle-tilting type 5-axis NC machines. 相似文献
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Hideki Takezawa Nobuhiro Yokote Naotake Mohri 《The International Journal of Advanced Manufacturing Technology》2016,85(1-4):25-35
REMORA aims at offering an agile robotic solution for manufacturing tasks done on very large parts (e.g., very long and slender parts found in aeronautic industries). For such tasks, classical machine tools are designed at several tens of meters. Both their construction and operation require huge infrastructure supports. REMORA is a novel lightweight concept and flexible robotic solution that combines the ability of walking and manufacturing. The robot is a mobile manufacturing system which can effectuate operations with good payload capacity and good precisions for large workspace applications. This new concept combines parallel kinematics to ensure high stiffness but low inertia and mobile robotics to operate in very large workspaces. This results in a machining center of new generation: (1) agile manufacturing system for large workspace applications, (2) heavy load and good precisions, (3) 5-axis machining and 5-axis locomotion/clamping, (4) self-reconfigurable for specific tasks (workspace and force), and (5) flexible and multifunctional. 相似文献