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    SYSTEM AND METHOD FOR VIRTUALLY CALIBRATING A COMPUTER NUMERIC CONTROLLED MACHINE TO COMPENSATE FOR SURFACE DISTORTIONS
    1.
    发明申请
    SYSTEM AND METHOD FOR VIRTUALLY CALIBRATING A COMPUTER NUMERIC CONTROLLED MACHINE TO COMPENSATE FOR SURFACE DISTORTIONS 审中-公开

    公开(公告)号：US20190121315A1

    公开(公告)日：2019-04-25

    申请号：US16229099

    申请日：2018-12-21

    申请人： Timothy Owens

    发明人： Timothy Owens

    IPC分类号： G05B19/401

    CPC分类号： G05B19/401 ,  G05B2219/36087 ,  G05B2219/37619 ,  G05B2219/49166 ,  G05B2219/49193 ,  G05B2219/49194 ,  Y02P90/265

    摘要： A method for calibrating a CNC machine including providing instructions for machining a surface of a distortion-free object, selecting a true axis of movement of a toolhead of the machine using the instructions, instructing the toolhead to travel on an object to be machined along the true axis of movement, but where the toolhead actually travels along an actual axis that is deviated from the true axis as a result of the surface distortions on the object to be machined, selecting multiple points along the actual axis traveled by the toolhead on the object to be machined, comparing the distance of the multiple points along the actual axis from the true axis to determine offset amounts from the true axis corresponding to a lack of straightness of the object to be machined, and modifying the instructions to compensate for the offset amounts before uploading the instructions to a CNC controller.

    Real time machine tool error correction using global differential wet modeling
    4.
    发明授权
    Real time machine tool error correction using global differential wet modeling 失效
    使用全局差分湿造型实时机床误差校正

    公开(公告)号：US06269284B1

    公开(公告)日：2001-07-31

    申请号：US08981499

    申请日：1998-04-20

    申请人： Kam C. Lau ,  Quanhe Ma ,  Herbert Lau

    发明人： Kam C. Lau ,  Quanhe Ma ,  Herbert Lau

    IPC分类号： G05B1918

    CPC分类号： G05B19/404 ,  G05B2219/49194 ,  G05B2219/49206

    摘要： A machine tool is controlled through a process incorporating the steps of (1) measuring geometric and thermal errors with accurate instruments, (2) creating a global differential wet model of machine tool position, and (3) using this model to control real time compensation of machine tool operation. A controller modifies encoder-type position feedback signals used by the machine to compensate for geometric and thermal errors in the manner dictated by the global differential wet model.

    摘要翻译： 通过包括以下步骤（1）用精确仪器测量几何和热误差的步骤控制机床，（2）创建机床位置的全局差分湿模型，以及（3）使用该模型来控制实时补偿 的机床操作。 控制器修改机器使用的编码器类型位置反馈信号，以全局差分湿式模型规定的方式补偿几何和热误差。

    Method and apparatus for controlling a machine tool
    6.
    发明授权
    Method and apparatus for controlling a machine tool 有权

    公开(公告)号：US09983563B2

    公开(公告)日：2018-05-29

    申请号：US14629925

    申请日：2015-02-24

    申请人： Okuma Corporation

    发明人： Yasunori Kondo ,  Tetsuya Matsushita

    IPC分类号： G05B19/02 ,  G05B19/402 ,  G05B19/404

    CPC分类号： G05B19/402 ,  G05B19/404 ,  G05B2219/49194 ,  G05B2219/49198 ,  G05B2219/49202 ,  G05B2219/50047

    摘要： A method for controlling a machine tool in which a main spindle on which a tool is mounted and a table holding a workpiece are moved relative to each other by two or more translation axes that are not perpendicular to each other and at least one rotation axis. In the method, an error in a position of the tool with respect to the workpiece due to a geometric error is corrected to calculate a command value for controlling the translation axis. The method includes a conversion step of converting the error and a correction value for correcting the error by performing a homogeneous coordinate transformation from a workpiece coordinate system to the imaginary Cartesian coordinate system, and a correction value calculation step of calculating a correction value in a command value coordinate system of the translation axis by performing a homogeneous coordinate transformation of the correction value.

    Numerical control machine tool with sliding error compensation function
    7.
    发明授权
    Numerical control machine tool with sliding error compensation function 失效
    数控机床具有滑动误差补偿功能

    公开(公告)号：US4499546A

    公开(公告)日：1985-02-12

    申请号：US376983

    申请日：1982-05-10

    申请人： Akihiko Kuga ,  Hiroo Kuga

    发明人： Akihiko Kuga ,  Hiroo Kuga

    IPC分类号： B23Q15/013 ,  B23Q15/22 ,  G05B19/19 ,  G05B19/21 ,  G06F15/46 ,  G05B19/18

    CPC分类号： G05B19/21 ,  G05B19/19 ,  G05B2219/49194

    摘要： In a numerical control machine tool, the sliding errors are compensated by control means comprising: a position detector for detecting a current position on a first axis at all times in association with a first-axis position detector; a compensation data memory in which compensation data for a second axis corresponding to positions on the first axis have been stored, the memory outputting a compensation data corresponding to a position which coincides with a current position specified by the position register; a pulse generator means for calculating the difference between the current compensation data and the preceding compensation data and generating a pulse train proportional to the difference; an adder for subjecting to addition or subtraction the pulse train generated and a pulse train obtained by converting the output signal of a second-axis position detector; a pulse restoring means for converting the output pulse train of the adder into a signal similar in form to the output of the position detector; and a compensation control means for outputting as a position feedback signal for the second axis the signal outputted by the pulse restoring means, and for similarly processing the output signal of the second axis position detector to provide as a position feedback signal for the first axis the output signal thus processed.

    摘要翻译： 在数控机床中，滑动误差由控制装置补偿，包括：位置检测器，用于与第一轴位置检测器相关联地一直检测第一轴上的当前位置; 补偿数据存储器，其中已经存储了与第一轴上的位置对应的第二轴的补偿数据，该存储器输出与由位置寄存器指定的当前位置一致的位置对应的补偿数据; 脉冲发生器装置，用于计算当前补偿数据和前一个补偿数据之间的差值，并产生与该差值成比例的脉冲序列; 加法器，用于对产生的脉冲串进行加法或减法，以及通过转换第二轴位置检测器的输出信号而获得的脉冲串; 脉冲恢复装置，用于将加法器的输出脉冲串转换成类似于位置检测器的输出的信号; 以及补偿控制装置，用于作为第二轴的位置反馈信号输出由脉冲恢复装置输出的信号，并且类似地处理第二轴位置检测器的输出信号以提供第一轴的位置反馈信号 输出信号进行处理。

    Machine tool
    9.
    发明授权
    Machine tool 有权
    机床

    公开(公告)号：US09329590B2

    公开(公告)日：2016-05-03

    申请号：US13856772

    申请日：2013-04-04

    申请人： FUJI MACHINE MFG. CO., LTD.

    发明人： Masashi Ogawa ,  Kazuya Furukawa ,  Shigefumi Suzuyama ,  Atsushi Kamiya

    IPC分类号： G05B19/4063 ,  G05B19/4065

    CPC分类号： G05B19/4065 ,  G05B2219/49194

    摘要： A machine tool includes a controller including a storage unit that stores correction history data including correction amounts of the positions of tools input from a worker and time when the correction amounts are input, in association with the tools; and a display device that can display a time-based graph showing a relationship between the time and the correction amount for each tool.

    摘要翻译： 一种机床，包括：存储单元，存储单元，存储校正历史数据，该校正历史数据包括与工具输入的工具的位置的校正量和输入校正量的时间相关联的校正历史数据; 以及显示装置，其能够显示表示每个工具的时间与校正量之间的关系的基于时间的图。

    System for monitoring workpiece and tool carriages movement using a two-axis scale attached to a carriage cooperating with a reading head attached to the other carriage
    10.
    发明授权
    System for monitoring workpiece and tool carriages movement using a two-axis scale attached to a carriage cooperating with a reading head attached to the other carriage 失效
    用于使用连接到与附接到另一个支架的读取头配合的托架的两轴秤来监视工件和工具托架运动的系统

    公开(公告)号：US06298278B1

    公开(公告)日：2001-10-02

    申请号：US09111159

    申请日：1998-07-07

    申请人： Michael George Pierse

    发明人： Michael George Pierse

    IPC分类号： G06F1900

    CPC分类号： G05B19/404 ,  G05B19/401 ,  G05B2219/34047 ,  G05B2219/34242 ,  G05B2219/37098 ,  G05B2219/37306 ,  G05B2219/37307 ,  G05B2219/37576 ,  G05B2219/37611 ,  G05B2219/45141 ,  G05B2219/49193 ,  G05B2219/49194 ,  G05B2219/49195 ,  G05B2219/49219 ,  G05B2219/50391 ,  Y10T29/5126 ,  Y10T82/2506

    摘要： A machine tool has a carriage, has a workpiece carriage for carrying a workpiece from which material is removed by a tool carried by a tool carriage. A two-axis scale is attached to one of the carriages, and cooperates with a reading head attached to the other carriage. The output from the reading head is processed by signaling processing means to provide an indication of the position and/or movement of the carriages relative to each other and for generating positional data about one or both of the carriages to assist in controlling their movement in order to perform a machine operation. By directly measuring the relative positions of the two carriages, problems arising from, for example, distortions of the machine frame on which the carriages are mounted are at least mitigated. A preferred embodiment of the machine incorporates a second reading head attached to one carriage and incorporating the scale on another carriage so that the outputs from the two reading heads can be used to determine whether there has been any relative angular displacement of the paths followed by the carriages. There is also provided a method of determining the linear movement of one of the carriages relative to the other, and the machining process achieved using the machine tool.

    摘要翻译： 机床具有滑架，具有用于承载工件的工件托架，该工件由工具托架承载的工具从该工件移除。 两轴刻度附接到其中一个滑架，并与附接到另一个滑架的读取头配合。 来自阅读头的输出由信令处理装置处理以提供滑架相对于彼此的位置和/或运动的指示，并且用于产生关于一个或两个滑架的位置数据，以帮助按顺序控制它们的移动 执行机器操作。 通过直接测量两个滑架的相对位置，至少减轻了由例如安装滑架的机架的扭曲引起的问题。 机器的优选实施例包括附接到一个托架并将标尺结合在另一个托架上的第二读取头，使得来自两个读取头的输出可用于确定是否存在路径的任何相对角位移 车厢 还提供了一种确定托架中的一个相对于另一个的线性运动的方法，以及使用机床实现的加工过程。