摘要:
利用研制的激光位移传感器的机床测头,以机床为测量仪器的本体,提出了一种便捷高效的孔心距检测方法。该方法利用逼近式孔心定位法,借助机床坐标系,快速精确地得到孔心的相对坐标,进而获得被测工件的孔心距。与传统的孔心距测量方法相比,该方法具有快速、便捷、高精度、非接触式、在位检测的特性。利用一对标准环规验证了该方法的正确性,孔心距的测量精度在三坐标测量机上得到校验,测量误差达到微米级。实验证明:该方法能高效地完成孔心距的在位测量。
Abstract:
The hole centers distance is difficult measured by using the conventional measurement method. In this paper,new detection method which combine a machine tool probe based on laser displacement sensor is proposed.With the machine tool coordinate system,the centers' relative coordinates are quickly and accurately gotten by using the approximation hole center location,and then the hole centers distance for the measured work piece can be also gotten. Comparing with the traditional measurement method,the present method is rapid,convenient,high precision,non-contact,on-line measurement. Finally,using a pair of standard ring gauge to verify the correctness of the method,checking measurement accuracy of the hole centers distance in the three coordinates measuring machine,measurement errors can reach micron level. The experiment prove the present method can efficiently applied to measure the hole center distance online.