摘要
热误差的实时补偿最终需要将位移量转化为脉冲信号输入到数控机床的数控系统中才能有效进行.利用RTX的高实时可靠性的特点,在RTX环境下通过通用并口接收数控机床的反馈装置的反馈脉冲,并进行插入操作将热误差补偿脉冲信号叠加到原始的反馈脉冲信号中,运用通用并口端口并行传输脉冲信号的特点,通过通用并口将叠加后的脉冲信号作为反馈脉冲信号输入到数控机床数控系统中进行计算操作,从而达到低成本的数控机床热误差实时补偿的目的.
The displacement should be converted into pulse signal in real-time thermal error compensation,and the pulse signal is inputted into the CNC system.In hard real-time RTX environment,the parallel port receives the feed back pulse signal sending out from the feed back device.By using pulse insertion operation,the thermal error compensation pulse signal is overlapped on the original feed back pulse signal,and then the overlapped pulse signal is inputted into the CNC system via common parallel port because of the parallel transmission characteristics of the parallel port.Therefore,the thermal error compensation is implemented at low cost.
出处
《大连理工大学学报》
EI
CAS
CSCD
北大核心
2012年第6期835-840,共6页
Journal of Dalian University of Technology
基金
国家自然科学基金资助项目(重点项目50835001)
关键词
RTX
热误差
数控机床
脉冲插入
并口编程
RTX
thermal error
numerical control machine
pulse insertion
parallel port programming
