圆锥曲线插补数控系统的研究与设计
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摘要
针对传统经济型数控系统中插补类型较少的问题,采用差分插补原理设计了圆锥曲线插补数控系统,并对该数控系统进行了软硬件的总体规划。在VC++6. 0环境下,采用差分插补原理和多线程技术进行数控系统的开发,差分插补原理的应用保证了数控系统圆锥曲线插补以及空间直线插补的实现。设计了以PCI-1750数据采集卡为核心的控制系统硬件接口电路,实现了步进电机与无刷直流电机的控制。实验表明,以差分插补原理为核心的圆锥曲线数控系统能够实现圆锥曲线的直接插补,提高了经济型数控系统的插补性能。
Aiming at the problem of less interpolation types in the traditional economical numerical control system,a conic interpolation numerical control system was designed based on the differential interpolation principle,and the overall planning of the hardware and software of the numerical control system design scheme was carried out. In the environment of VC + + 6. 0,the principle of differential interpolation and multithreading technology are adopted to develop the CNC system. The application of differential interpolation principle ensures the realization of the interpolation of the CNC system and the interpolation of the space. At the same time,the hardware interface circuit of the control system with PCI-1750 data acquisition card is designed,and the control of stepping motor and brushless DC motor is realized. The experiment shows that the NC system with the differential interpolation principle can realize the direct interpolation of the conic curve and improve the interpolation performance of the economic NC system.
Aiming at the problem of less interpolation types in the traditional economical numerical control system,a conic interpolation numerical control system was designed based on the differential interpolation principle,and the overall planning of the hardware and software of the numerical control system design scheme was carried out. In the environment of VC + + 6. 0,the principle of differential interpolation and multithreading technology are adopted to develop the CNC system. The application of differential interpolation principle ensures the realization of the interpolation of the CNC system and the interpolation of the space. At the same time,the hardware interface circuit of the control system with PCI-1750 data acquisition card is designed,and the control of stepping motor and brushless DC motor is realized. The experiment shows that the NC system with the differential interpolation principle can realize the direct interpolation of the conic curve and improve the interpolation performance of the economic NC system.
引文
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[2]王利峰,代美泉,李俊.开放式数控系统在实践中的应用探究[J].内燃机与配件,2017(13):36-37.
[3]傅桂龙,程筱胜.基于PC的开放式数控系统实现方法[J].机械设计与制造工程,2000,29(1):45-46.
[4]董海涛,潘海鸿,黄丽宇,等.一种优化的NURBS曲线插补算法[J].计算机集成制造系统,2014,20(9):2172-2177.
[5]王敏.差分插补方法及其在数控线切割机中的应用(一)[J].电加工与模具,1981(4):3-6.
[6]赵庆志,刘正埙,谷安,等.基于差分插补理论的慢走丝线切割上下异型面工件新方法[J].中国机械工程,2006,17(8):793-797.
[7]赵庆志.基于可重构理论的慢走丝线切割机床控制系统研究与设计[D].南京:南京航空航天大学,2004.
[8]王宏甲,赵庆志,杨召彬.基于差分插补原理的圆柱插补模式研究[J].组合机床与自动化加工技术,2017(5):14-16.
[9]王宏甲,赵庆志,乔磊,等.基于差分插补原理的多维线性空间插补与仿真[J].组合机床与自动化加工技术,2017(9):12-15.
[10]王宏甲,赵庆志,夏汝岩,等.基于差分插补原理的三坐标数控实验台的研制[J].山东理工大学学报(自然科学版),2017,31(6):34-37.
[11]陈婵娟,陈参,郭贵中.多线程技术解决开放式数控系统实时性能的应用设计[J].可编程控制器与工厂自动化,2007,20(4):159-160.
[12]帅梅,王爱囡,王广炎.基于Windows数控系统的多线程实现[J].机床与液压,2003(6):258-259.