摘要
在半闭环控制的数控机床中,丝杠螺距误差是影响加工精度的一个重要因素,而利用激光干涉仪进行螺距误差补偿是解决这一问题的有效手段.文章介绍了雷尼绍激光干涉仪的工作原理及测试方法,采用XL-80型激光干涉仪对西门子数控机床进行等间距螺距误差测量和补偿,并对不同补偿数组输入前后的测试数据进行分析,结果表明,在螺距误差正确补偿后机床的定位精度从0.052 mm提高至0.012 mm,反向间隙值由0.023 mm降至0.005 mm.
Pitch error is an important factor in the processing accuracy for the half loop control CNC machine, and pitch error compensation method is an effective means to solve the problem. The principle and testing way of RENISHAW laser interferometer are introduced, and the XL-80 type laser interferometer is utilized for measuring the pitch error of the SIEMENS CNC machine. With an analysis of the test data before and after the various compensation arrays, result shows that the positioning accuracy of the CNC machine is improved significantly from 0.052mm to 0.012mm, and the backlash value decrease from 0.023mm to 0.005mm after the correct error compensation array is applied.
出处
《深圳职业技术学院学报》
CAS
2017年第5期21-25,共5页
Journal of Shenzhen Polytechnic
关键词
激光干涉仪
数控机床
螺距误差
补偿
laser interferometer
CNC machine
pitch error
compensation
