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    Method of measuring a reference position of a tool relative to a workpiece, and machine tool for carrying out said method
    1.
    发明授权
    Method of measuring a reference position of a tool relative to a workpiece, and machine tool for carrying out said method 失效
    测量工具相对于工件的参考位置的方法以及用于执行所述方法的机床

    公开(公告)号：US5831734A

    公开(公告)日：1998-11-03

    申请号：US550126

    申请日：1995-10-27

    申请人： Arie Van Tooren ,  Gerrit H. Van Gool ,  Johannes H.F.M. Van Leest ,  Johan C. Wijn

    发明人： Arie Van Tooren ,  Gerrit H. Van Gool ,  Johannes H.F.M. Van Leest ,  Johan C. Wijn

    IPC分类号： B23Q15/00 ,  B23Q17/22 ,  G05B19/18 ,  G05B19/401 ,  G01B11/14

    CPC分类号： B23Q17/2233 ,  G05B19/184 ,  G05B19/4015 ,  G05B2219/37425 ,  G05B2219/45157 ,  G05B2219/45178 ,  G05B2219/49271 ,  G05B2219/50021 ,  G05B2219/50036

    摘要： In a method for measuring a reference position of a tool relative to a workpiece, the tool is fastened to a first holder of a machine tool. The workpiece is to be manufactured using the tool and is fastened to a second holder of the machine tool. The tool provides a distinguishing mark on the workpiece in a predetermined reference position of the first holder relative to the second holder. Subsequently, the distinguishing mark is detected by a sensor. Therefore, the reference position of the tool relative to the workpiece is determined from a position of the first holder relative to the second holder. The tool and the sensor are fastened in fixed, permanent positions relative to one another and relative to the first holder. The accuracy of measurement of the position of the tool depends exclusively on the accuracy of positioning of the first holder relative to the second holder. The accuracy of machining the workpiece is not hurt by the accuracy of measurement of the reference position of the tool relative to the workpiece. The sensor may be optical, with a focusing error detector. The second holder may be rotatable about a Z-axis, with the first holder being displaceable parallel to an X-axis which is perpendicular to the Z-axis, and the distinguishing mark being a circular groove in a surface of the workpiece which extends perpendicularly to the Z-axis.

    摘要翻译： 在用于测量工具相对于工件的参考位置的方法中，工具被紧固到机床的第一保持器。 工件将使用该工具制造，并被固定到机床的第二保持器上。 该工具在第一保持器相对于第二保持器的预定基准位置中在工件上提供区别标记。 随后，通过传感器检测识别标记。 因此，工具相对于工件的参考位置是从第一保持器相对于第二保持器的位置确定的。 工具和传感器相对于彼此并相对于第一保持器固定在固定的永久位置。 测量刀具位置的精度完全取决于第一支架相对于第二支架的定位精度。 加工工件的精度不受工具相对于工件的参考位置测量精度的影响。 传感器可以是光学的，具有聚焦误差检测器。 第二支架可以围绕Z轴旋转，第一支架可平行于垂直于Z轴的X轴移动，并且该区别标记是工件表面垂直延伸的圆形槽 到Z轴。