Design of motion accuracy measurement device with three displacement sensors for machine tool and comparison of its setting method
Design of motion accuracy measurement device with three displacement sensors for machine tool and comparison of its setting method
复制标题
三位移传感器机床运动精度测量装置设计及其设定方法比较
DOI：
10.1299/jamdsm.2014jamdsm0057
复制
发表时间：
2014
影响因子：
0.9
通讯作者：
Y. Ihara
中科院分区：
文献类型：
--
作者：
Masashi Yamaji;Naoki Hamabata;Y. Ihara
国际标准化组织（ISO）正在讨论五轴加工中心试验方法的标准。在其标准草案中，除了众所周知的机床运动测量装置滚珠杆装置外，还描述了具有三个位移传感器的测量装置的使用。在本研究中，设计并制作了一种能够自由采用设置方法的装置。利用新设计的装置，对三种安装在机器上的整定方法进行了比较。一种是欧洲发展起来的常规设置方法，另一种是传感器轴线与机床轴线平行的方法，另一种是将装置附着在机床主轴上的方法。由于对比结果差异不大，因此可以根据主球的定心、防碰撞、传感器的电缆处理等安装在机器上的便利性来确定设置方法。同时考虑了两个五轴加工中心的测量结果。典型的误差是直线轴的直线度误差运动，这是球杆试验难以检测到的。将双向重复性误差和循环误差作为直线度误差进行检测。
The standard of test method for five-axis machining center is now under discussion by ISO. In its draft standard, the use of a measurement device with three displacement sensor is described in addition to the ball bar device that is well-known as the motion measurement device for machine tools. In this study, a device that was able to take the setting method freely was designed and prototyped. Using the newly-designed device, three setting method installed on the machine were compared. One is of the conventional setting method developed in Europe, another is the method that sensors axes are parallel to the machine axes, the other is that the device is attached on the machine spindle. Since the compared results show little difference, the setting method can be decided by convenience of the easiness of installation on the machine such as centering of the master ball, collision prevention and sensor’s cable treatment. The measured results on two five-axis machining centers were also considered. The typical error was that the straightness error motion of linear axes, which is difficult to detect by the ball bar test. Both bidirectional repeatability error and cyclic errors are detected as the straightness error.