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3 条记录 (耗时 0.009 秒)

    METHOD OF MEASURING A REFERENCE POSITION OF A TOOL RELATIVE TO A WORKPIECE, AND MACHINE TOOL FOR CARRYING OUT SAID METHOD
    1.
    发明公开
    METHOD OF MEASURING A REFERENCE POSITION OF A TOOL RELATIVE TO A WORKPIECE, AND MACHINE TOOL FOR CARRYING OUT SAID METHOD 失效
    程序是一个参考点的工具相对于作业来衡量和一台工具，执行该方法

    公开(公告)号：EP0737121A1

    公开(公告)日：1996-10-16

    申请号：EP95933584.0

    申请日：1995-10-23

    申请人： PHILIPS ELECTRONICS N.V.

    发明人： VAN TOOREN, Arie ,  VON GOOL, Gerrit Hendrik ,  VAN LEEST, Johannes Henricus Franciscus Maria ,  WIJN, Johan Cornelis

    IPC分类号： B23Q15 ,  B23Q17 ,  G05B19

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

    摘要： A method of measuring a reference position of a tool (13, 135) which is fastened to a first holder (11, 133) of a machine tool (1, 131) relative to a workpiece (35, 145) which is to be manufactured by means of said tool (13, 135) and which is fastened to a second holder (33, 143) of the machine tool (1, 131). According to the invention, the tool (13, 135) provides a distinguishing mark (123, 159) on the workpiece (35, 145) in a predetermined reference position of the first holder (11, 133) relative to the second holder (33, 143). Subsequently, the distinguishing mark (123, 159) is detected by a sensor (109, 153), and the reference position of the tool (13, 133) relative to the workpiece (35, 145) is determined from a position of the first holder (11, 133) relative to the second holder (33, 143) in which the distinguishing mark (123, 159) is detected by the sensor (109, 153). During implementation of the method, the tool (13, 135) and the sensor (109, 153) are fastened in fixed, permanent positions relative to one another and relative to the first holder (11, 133). It is achieved thereby that the accuracy with which the reference position of the tool (13, 135) relative to the workpiece (35, 145) can be measured depends exclusively on the accuracy with which the first holder (11, 133) can be positioned relative to the second holder (33, 143), so that the accuracy with which the workpiece (35, 145) can be machined with the tool (13, 135) is not adversely affected by the accuracy with which the reference position of the tool (13, 135) relative to the workpiece (35, 145) is measurable. In a special embodiment of the machine tool (1, 131) according to the invention, the sensor (109, 153) is an optical sensor with a focusing error detector (119). In a further embodiment of a machine tool (1) according to the invention, the second holder (33) with the workpiece (35) is rotatable about a Z-axis, the first holder (11) with the tool (13) is displaceable parallel to an X-axis which is perpendicular to the Z-axis, and the distinguishing mark is a circular groove (123) in a surface (121) of the workpiece (35) which extends perpendicularly to the Z-axis.

    MACHINE TOOL FOR AND METHOD OF PROVIDING A SURFACE WHICH IS NOT ROTATIONALLY SYMMETRICAL ON A WORKPIECE, AND CONTROL FOR SUCH A MACHINE TOOL
    2.
    发明公开
    MACHINE TOOL FOR AND METHOD OF PROVIDING A SURFACE WHICH IS NOT ROTATIONALLY SYMMETRICAL ON A WORKPIECE, AND CONTROL FOR SUCH A MACHINE TOOL 失效
    方法和机器工具，生成非均匀轮换表面上的工作，并控制这样的机床

    公开(公告)号：EP0722378A1

    公开(公告)日：1996-07-24

    申请号：EP95924485.0

    申请日：1995-07-21

    申请人： PHILIPS ELECTRONICS N.V.

    发明人： VAN TOOREN, Arie ,  VAN LEEST, Johannes, Henricus, Franciscus, Maria ,  VERHULST André, Alois ,  RENKENS, Michael, Josepha, Mathijs

    IPC分类号： B23B5 ,  B23B19 ,  B24B13

    CPC分类号： B24B13/046

    摘要： A machine tool (1, 227) with a spindle (27, 229) which extends parallel to Z-direction, is rotatable about an axis of rotation (29, 231) which runs parallel to the Z-direction, and is provided with a holder (33, 235) for a workpiece (35, 237) to be manufactured. The machine tool (1, 227) has a holder (11) for a tool (13) which is displaceable in an X-direction perpendicular to the Z-direction. The spindle (27, 229) and the holder (11) for the tool (13) are mutually displaceable parallel to the Z-direction as a function of the X-position of the tool (13) and an angle of rotation of the spindle (27, 229), so that the workpiece (35, 237) is provided with a surface which is not rotationally symmetrical relative to the axis of rotation (29, 231). According to the invention, the spindle (27, 229) and the holder (11) are mutually displaced parallel to the Z-direction in that exclusively the spindle (27, 229) is displaced parallel to the Z-direction. The workpiece (35, 237) is thus provided with a desired basic surface and a desired correction which is not rotationally symmetrical, while a series of workpieces having different basic surfaces and corrections can be manufactured by means of only a single tool.