基于MachineWorks的复杂数控加工环境仿真的研究
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摘要
当前存在的一些商品化数控加工仿真系统通常作为一个独立于数控系统的程序而很难集成入当前数控系统中,为此有些情况下需要依据数控系统的实际情况开发数控加工仿真系统,但是当前存在的一些开发方案都或多或少存在一些问题,如开发周期长、灵活性差。本文仔细研究了数控加工仿真系统的几个关键技术和几类常用开发方案,采用了基于专用的数控加工仿真系统库——MachineWorks的开发方案,结果显示这种方案对开发量过大和灵活性不足的问题做出相应折衷,能方便的集成入当前的数控系统中,同时能够减少开发工作量。并且本文针对一般CAM或加工仿真软件只进行零件刀具轨迹或中间文件的模拟,无法满足复杂加工环境下的加工仿真需求的问题,在此开发方案基础上对复杂数控加工环境仿真的开发思路、过程及相关关键技术做了阐述。
Although there exist some commercial NC machining simulation systems at present,but these systems are hard to be integrated into numerical control systems w hich already exist,so in some situations w e have to develop NC machining simulation systems in according to numerical control systems w hich is developing. Although there exist some methods to develop a NC machining simulation system,but these methods have some problems more or less such as the amount of w ork is too huge or the flexibility is not very good. This paper explores some key technologies w hich are used by machining simulation system and some schemes w hich are used to develop machining simulation system,w e use a method w hich is based on specialpurposed library to develop the system. The result show s that this method can satisfy the demand w hich requires to decrease the amount of w ork and keep some-level of flexibility. In consideration of the general CAM or machining simulation system only simulate the cutter-location based-on part and cutter,the virtual machining environment is simple,so based on the method w e describe the process of simulation of complex NC machining environment.
Although there exist some commercial NC machining simulation systems at present,but these systems are hard to be integrated into numerical control systems w hich already exist,so in some situations w e have to develop NC machining simulation systems in according to numerical control systems w hich is developing. Although there exist some methods to develop a NC machining simulation system,but these methods have some problems more or less such as the amount of w ork is too huge or the flexibility is not very good. This paper explores some key technologies w hich are used by machining simulation system and some schemes w hich are used to develop machining simulation system,w e use a method w hich is based on specialpurposed library to develop the system. The result show s that this method can satisfy the demand w hich requires to decrease the amount of w ork and keep some-level of flexibility. In consideration of the general CAM or machining simulation system only simulate the cutter-location based-on part and cutter,the virtual machining environment is simple,so based on the method w e describe the process of simulation of complex NC machining environment.
引文
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[7]吴陈燕.正交型五轴虚拟机床构建及NC刀具路径仿真模拟[J].组合机床与自动化加工技术,2013(12):130-132,135.
[8]崔海龙,关立文,滑勇之,等.基于VERICUT二次开发的数控加工切削力仿真研究[J].组合机床与自动化加工技术,2012(5):9-12.
[9]王伟,张鹏,刘庆云.制造业中虚拟仿真技术的发展研究[J].组合机床与自动化加工技术,2013(7):1-4.
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[2]Yu Zhang,Xiao-Lan Bai,Xun Xu,et al.STEP-NC Based High-level Machining Simulations Integrated with CAD/CAPP/CAM[J].International Journal of Automation and Computing,2012,9(5):506-517.
[3]Zhang Jian-Min,Fan Yu,Jia Dong-yun,et al.Kinematic simulation of a parallel NC machine tool in the manufacturing process[J].Frontiers of Mechanical Engineering in China,2006,1(2):173-176.
[4]Rozmarina Dubovska,Jaroslav Jambor,Jozef Majerik.Implementation of CAD/CAM system CATIA V5 in Simulation of CNC Machining Process[J].Procedia Engineering,2014,69(2014):638-645.
[5]王中胜,张磊,刘万普,等.基于Vericut的车铣复合加工中心虚拟仿真研究[J].航空制造技术,2011,1(2):106-110.
[6]章善财,夏链,韩江.通用NC代码编译器的设计与实现[J].组合机床与自动化加工技术,2014(10):53-56.
[7]吴陈燕.正交型五轴虚拟机床构建及NC刀具路径仿真模拟[J].组合机床与自动化加工技术,2013(12):130-132,135.
[8]崔海龙,关立文,滑勇之,等.基于VERICUT二次开发的数控加工切削力仿真研究[J].组合机床与自动化加工技术,2012(5):9-12.
[9]王伟,张鹏,刘庆云.制造业中虚拟仿真技术的发展研究[J].组合机床与自动化加工技术,2013(7):1-4.
[10]Machine Works Ltd.Programmer’s Guide[M].Sheffield:Machine Works Ltd,2012.
[11]Machine Works Ltd.Geometry[M].Sheffield:MachineWorks Ltd,2012.
[12]Machine Works Ltd.Simulation,Volume 1,2[M].Sheffield:Machine Works Ltd,2012.
[13]Machine Works Ltd.Full Machine Simulation[M].Sheffield:Machine Works Ltd,2012.
[14]Machine Works Ltd.Graphics[M].Sheffield:MachineWorks Ltd,2012.
[15]孙家广.计算机图形学[M].3版.北京:清华大学出版社,1998.
[16]李斌,李曦.数控技术[M].武汉:华中科技大学出版社,2010.