珩磨机运动控制卡的三次B样条曲线插补算法  

Honing machine motion control card three B spline curve interpolation algorithm

作　　者：张万军[1,2] 胡赤兵[3] 张峰[1,2] 张国华[1,2] 龚俊[3] 

机构地区：[1]兰州理工大学机电工程学院,甘肃兰州730050 [2]兰州工业化设备有限公司,甘肃兰州730050 [3]兰州理工大学数字制造技术与应用省部共建教育部重点实验室,甘肃兰州730050

出　　处：《制造技术与机床》2012年第8期80-82,共3页Manufacturing Technology & Machine Tool

基　　金："高档数控机床与基础制造装备"科技重大专项(2010ZX040001-181)

摘　　要：数控珩磨机在加工复杂曲线曲面时,控制系统通常以TMS320F2812芯片为核心,设计DSP运动控制卡的定时器控制中断控制伺服电动机来完成插补。介绍了一种利用DSP运动控制卡进行三次B样条曲线的插补方法,该方法不仅可以缩短插补时间,也可以通过控制运动控制卡定时器中断来调整插补轨迹。最后实例表明,该插补算法不仅满足运动控制的要求,而且也满足了高速高精度插补的要求。Numerical control honing machine in machining of the complex curve and the curved surface, control system usually with TMS320F2812 chip as the core, the design of DSP motion eontrol card timer inter- rupt control servo motor to complete interpolation. This paper introduces a method using DSP motion control card for three B spline curve interpolation methods, this method can not only shorten the interpo- lation time, also can be controlled by motion control card interrupt timer to adjust interpolation. The last example shows that, the interpolation algorithm not only meet the control requirements, but also meets the requirements of high speed and high precision interpolation.

关 键 词：运动控制 实时插补 三次B样条曲线 插补算法 

分 类 号：TP391.44[自动化与计算机技术—计算机应用技术]