CMM moving path adjustment assisting method and apparatus

    公开(公告)号:US09995574B2

    公开(公告)日:2018-06-12

    申请号:US13365539

    申请日:2012-02-03

    申请人: Liming Li

    发明人: Liming Li

    摘要: A method is provided to assist adjustment for a movement path of a probe. A coordinate measuring machine includes a probe having a tip for detecting a surface of an object, and a movement mechanism for moving the probe, and measures a shape of the object by allowing the probe tip to scan the surface. A controller controls operation of the coordinate measuring machine by calculating a scanning path for allowing the probe tip to perform scanning movement and the movement path followed by the probe when the probe tip moves along the scanning path, setting control points on a line connecting each position of the probe tip and each corresponding position of the probe accepting a change in position of the control points by a user, and changing the movement path accordingly. An adjustment guide unit in the controller allows the control points to move collectively.

    MACHINING PROCESS FOR MULTI-VANE NOZZLE
    34.
    发明申请

    公开(公告)号:US20170298749A1

    公开(公告)日:2017-10-19

    申请号:US15485045

    申请日:2017-04-11

    IPC分类号: F01D9/04 B23P15/02

    摘要: The present invention relates to a method for machine finishing the shape of a blank casting for a multi-vane, in particular bi-vane, nozzle of a turbine engine, comprising a first vane and a second vane extending substantially in a radial direction between two walls that are radially inner and radially outer, respectively, the suction face of the first vane defining, together with the pressure face of the trailing edge of the second vane, a cross section of flow (SP), the method comprising measuring, by means of probing, the position of predefined points on said respectively radially inner and radially outer walls on the surface of the vanes and calculating the machining allowances (Δ1 and Δ2 respectively) on the first and second vanes with respect to the theoretical profile at said points, wherein the method comprises calculating said cross section of flow (SP) from the height of the duct between said radially inner and radially outer walls, and values of the machining allowances (Δ1 and Δ2), a correction of the machining allowance (Δ2) on one of the vanes being applied when the calculated value of the cross section of flow (SP) is outside predefined tolerances.

    ADAPTIVE MACHINING OF COMPONENTS
    35.
    发明申请
    ADAPTIVE MACHINING OF COMPONENTS 有权
    组件的自适应加工

    公开(公告)号:US20140257551A1

    公开(公告)日:2014-09-11

    申请号:US14198103

    申请日:2014-03-05

    IPC分类号: G05B13/04

    摘要: In some examples, an adaptive machining system may include a model comparison unit, a compromise shape determination unit, and a program modification unit. The model comparison unit can be configured to compare electronic measured dimensional surface data of a component with an electronic surface model of the component. The compromise shape determination unit can be configured to determine a compromise shape for the component based on the comparison. The program modification unit can be configured to modify a machine tool program code based on the compromise shape.

    摘要翻译: 在一些示例中,自适应加工系统可以包括模型比较单元,妥协形状确定单元和程序修改单元。 模型比较单元可以被配置为将部件的电子测量尺寸表面数据与部件的电子表面模型进行比较。 折衷形状确定单元可以被配置为基于比较来确定部件的折衷形状。 程序修改单元可以被配置为基于折衷形状修改机床程序代码。

    METHOD AND APPARATUS FOR A CUTTING PROCESS AUTOMATIC GENERATION TOOL OF CAM
    36.
    发明申请
    METHOD AND APPARATUS FOR A CUTTING PROCESS AUTOMATIC GENERATION TOOL OF CAM 有权
    CAM的切割工艺自动生成工具的方法和装置

    公开(公告)号:US20140180465A1

    公开(公告)日:2014-06-26

    申请号:US14133156

    申请日:2013-12-18

    申请人: Hitachi, Ltd.

    IPC分类号: G05B19/4097

    摘要: In a conventional CAM apparatus, cutting regions and a tool axis angle by which the cutting time is minimized cannot be automatically set for a finish shape having a free formed surface shape. Accordingly, the CAM apparatus generates quadrangle-shaped patterns of cutting regions using coordinate data of a finish shape and an initial shape. Triangle-shaped cutting regions are generated for concave-convex faces of the finish shape. For cutting regions generated by subtraction by boolean operation with a subtract shape calculated by subtraction by boolean operation between the initial shape and the finish shape, the tool axis angle is set so that the tool does not interfere and the face is maximized. For other regions, the tool axis is set so as to satisfy a remainder standard and to minimize a tool path length.

    摘要翻译: 在传统的CAM装置中,对于具有自由成形表面形状的精加工形状,切割区域和切割时间最小化的刀具轴线角度不能自动设定。 因此,CAM装置使用精加工形状和初始形状的坐标数据来生成切割区域的四角形图案。 对于整理形状的凹凸面产生三角形切割区域。 对于通过布尔运算减法产生的切割区域,通过在初始形状和精加工形状之间的布尔运算减法计算的减法形状,刀具轴角度被设置为使得刀具不会干扰并且面部最大化。 对于其他区域,刀具轴被设置为满足余数标准并且使刀具路径长度最小化。

    METHOD FOR SELECTING A GEOMETRY OF A BLADE
    38.
    发明申请
    METHOD FOR SELECTING A GEOMETRY OF A BLADE 有权
    选择叶片几何的方法

    公开(公告)号:US20130166056A1

    公开(公告)日:2013-06-27

    申请号:US13708731

    申请日:2012-12-07

    IPC分类号: G06F17/00

    摘要: A method selects from a plurality of predetermined blade geometries, a blade geometry for a blade wheel for a turbomachine, with for the predetermined blade geometries at least one characteristic value identifying an aerodynamic property of the blade geometry and at least one characteristic value identifying a structural mechanism of the blade geometry being filed in a memory. An evaluation unit ascertains for each blade geometry a total value, which is calculated from the assigned characteristic values. The evaluation unit selects at least that blade geometry whose total value has an extreme value of all computed total values of the blade geometries. At least one characteristic value identifying producibility of the respective blade geometry is filed in the memory additionally to the blade geometries. The evaluation unit also incorporates while ascertaining the total value of the respective blade geometry the characteristic value identifying producibility.

    摘要翻译: 一种方法从多个预定叶片几何形状中选择用于涡轮机的叶轮的叶片几何形状,对于预定的叶片几何形状,至少一个特征值标识叶片几何形状的空气动力特性,以及至少一个特征值,其识别结构 叶片几何形状的机构被存放在存储器中。 评估单元根据分配的特征值来确定每个叶片几何形状的总值。 评估单元至少选择叶片几何形状,其总值具有叶片几何形状的所有计算总值的极值。 识别相应刀片几何形状的可生产性的至少一个特征值被附加到刀片几何形状中。 评估单元还包括确定相应叶片几何形状的总值的特征值,以识别可生产性。

    CMM MOVING PATH ADJUSTMENT ASSISTING METHOD AND APPARATUS
    39.
    发明申请
    CMM MOVING PATH ADJUSTMENT ASSISTING METHOD AND APPARATUS 有权
    CMM移动路径调整辅助方法和装置

    公开(公告)号:US20130041624A1

    公开(公告)日:2013-02-14

    申请号:US13365539

    申请日:2012-02-03

    申请人: Liming LI

    发明人: Liming LI

    IPC分类号: G06F15/00 G01B5/20

    摘要: A method is provided to assist adjustment for a movement path of a probe. A coordinate measuring machine includes a probe having a tip for detecting a surface of an object, and a movement mechanism for moving the probe, and measures a shape of the object by allowing the probe tip to scan the surface. A controller controls operation of the coordinate measuring machine by calculating a scanning path for allowing the probe tip to perform scanning movement and the movement path followed by the probe when the probe tip moves along the scanning path, setting control points on a line connecting each position of the probe tip and each corresponding position of the probe accepting a change in position of the control points by a user, and changing the movement path accordingly. An adjustment guide unit in the controller allows the control points to move collectively.

    摘要翻译: 提供了一种辅助调节探针移动路径的方法。 坐标测量机包括具有用于检测物体表面的尖端的探针和用于移动探针的移动机构,并且通过允许探针尖端扫描表面来测量物体的形状。 控制器通过计算用于当探针尖端沿着扫描路径移动时,使探头尖端进行扫描移动的扫描路径和探头后面的移动路径来控制坐标测量机的操作,将控制点设置在连接每个位置的线上 的探针尖端和探针的每个对应位置接受用户的控制点的位置的改变,并且相应地改变移动路径。 控制器中的调节引导单元允许控制点集体移动。