BASE ASSEMBLY FOR COORDINATE MEASURING MACHINE
    2.
    发明申请
    BASE ASSEMBLY FOR COORDINATE MEASURING MACHINE 审中-公开
    坐标测量机基座装配

    公开(公告)号:WO1989003505A1

    公开(公告)日:1989-04-20

    申请号:PCT/US1988003379

    申请日:1988-09-30

    CPC classification number: B23Q16/00 B23Q1/012 G01B5/0011 G01B5/004

    Abstract: A base assembly (25) for a machine tool includes a support arrangement between a metal base (26) and a granite worktable (10) which eliminates distortion caused by differential thermal expansion and contraction and which isolates the base from deformation due to the weight of a workpiece. The support arrangement preferably includes three spaced-apart blocks (34, 36, 38) each with a V-groove (40, 42, 44) attached to the bottom of the granite worktable. The axes of the V-groove tracks intersect at a common point (46). The metal base includes three spherical projections located for engagement in each of the V-groove tracks. The support arrangement permits the granite worktable and the base to expand, contract and distort separately, while providing vertical support and lateral and rotational restraint. Several configurations of tracks and projections are disclosed.

    APPARATUS FOR TEMPERATURE COMPENSATION OF SENSING MEANS OF A MACHINE
    3.
    发明申请
    APPARATUS FOR TEMPERATURE COMPENSATION OF SENSING MEANS OF A MACHINE 审中-公开
    机械传感器温度补偿装置

    公开(公告)号:WO1989003506A1

    公开(公告)日:1989-04-20

    申请号:PCT/US1988003400

    申请日:1988-09-30

    CPC classification number: G01B5/0014

    Abstract: In a coordinate measuring machine (10), apparatus for compensating the sensing means for determining the position of a probe (18) for changes in temperature, where the machine base and the support column (44) for the probe have differing coefficients of thermal expansion. In a preferred embodiment, the apparatus of this invention is used to prevent ''zero shift'' in the Z-direction for a Z-rail (30). The compensating apparatus is associated either with the support column or Z-rail (30). The apparatus offsets the greater expansion of the machine component having the greater coefficient of thermal expansion. Typically, the position sensing means for the Z-rail includes an encoder (38) and a scale (36). One element of the mount which extends upwardly from the support column has a coefficient of thermal expansion which is substantially less than that of the aluminum of which the column (44) is composed.

    ON-MACHINE BALLBAR SYSTEM AND METHOD FOR USING THE SAME
    4.
    发明申请
    ON-MACHINE BALLBAR SYSTEM AND METHOD FOR USING THE SAME 审中-公开
    机框球系统及其使用方法

    公开(公告)号:WO1997018436A1

    公开(公告)日:1997-05-22

    申请号:PCT/US1996017778

    申请日:1996-11-14

    Applicant: LAU, Kam, C.

    Abstract: A ballbar socket head (302) is attached to a standard tool head (304) for a CNC machine tool or like device. The socket head can then be parked on the machine tool's tool chain (316) and selectively loaded into the machine tool's spindle (318) under program control by an automatic tool change arm (320). The ballbar socket head (302) is then engaged with a telescopic ballbar attached to a base socket (308). The ballbar and base socket (308) may be peripherally located on the machine's table (310), or automatically placed on the table for test purpose by the machine tool. The ballbar test function may be automatically performed during loading and unloading of the machine, in between production runs, at downtimes, or at periodic predetermined time intervals. When the ballbar equipment is loaded, the machine tool automatically follows a predetermined controlled-motion pattern for a ballbar test. After the test, the ballbar socket head (302) is returned to the machine's tool chain (316) and the ballbar, and the base unit bar and and ballbar are moved, if appropriate. The results of the test are received by a computer and may be displayed for the operator, stored for statistical analysis, or used dynamically to recalibrate the machine's motion control. Preferably, the ballbar sensor (314) communicates with the computer using wireless methods.

    Abstract translation: 一个球杆插座头(302)连接到用于CNC机床或类似装置的标准工具头(304)上。 然后,插座头可以停在机床的工具链(316)上,并通过自动换刀臂(320)在程序控制下选择性地装入机床主轴(318)。 球杆插头头部(302)然后与连接到基座(308)的伸缩式球杆接合。 球杆和底座(308)可以周边地位于机器台(310)上,或者由机床自动放置在桌子上用于测试目的。 滚珠球测试功能可以在机器的装载和卸载期间,在生产运行之间,在停机期间或以周期性的预定时间间隔自动执行。 当球杆设备加载时,机床自动遵循预定的控制运动模式进行球杆测试。 在测试之后,如果适当,球杆插座头(302)返回到机器的工具链(316)并且球杆,以及基座单元杆和球杆被移动。 测试结果由计算机接收并且可以显示给操作者,存储用于统计分析,或动态地用于重新校准机器的运动控制。 优选地,球杆传感器(314)使用无线方法与计算机通信。

    Coordinate measuring machine having vertical fine feed and lock mechanism
    6.
    发明公开
    Coordinate measuring machine having vertical fine feed and lock mechanism 失效
    具有垂直精细进给和锁定机构的坐标测量机

    公开(公告)号:EP0118338A3

    公开(公告)日:1986-09-17

    申请号:EP84400229

    申请日:1984-02-02

    Inventor: Tuss, John J.

    CPC classification number: G01B5/008 G01B3/002 Y10S33/01 Y10T74/18568

    Abstract: A coordinate measuring machine having a vertically movable probe shaft in which a vertical fine feed and lock mechanism for the probe shaft is provided by a first knob coupled to a magnet movable between two positions, one of said positions operatively coupling a second knob to the' probe shaft for driving said probe shaft in a vertical direction, the other of said positions being ineffective for moving the fine feed mechanism. The fine feed is accomplished throught the rotation of a second knob which is in frictional engagement through a driven quasi "V" shaped flanged wheel with the probe shaft to be moved vertically.

    CONTROL AXIS MOUNTED COMPUTER INTERFACE FOR COORDINATE MEASURING MACHINES
    7.
    发明申请
    CONTROL AXIS MOUNTED COMPUTER INTERFACE FOR COORDINATE MEASURING MACHINES 审中-公开
    用于坐标测量机的控制轴安装计算机接口

    公开(公告)号:WO1994024514A1

    公开(公告)日:1994-10-27

    申请号:PCT/US1994004203

    申请日:1994-04-15

    CPC classification number: G01B5/008 G01B21/047

    Abstract: A computer interface device (56) for a coordinate measuring machine (20) comprises a trackball (78) that transmits perpendicular movement signals to a computer (60) in response to corresponding perpendicular movement (80, 82) of the trackball (78). The computer (60) is interconnected with the coordinate measuring machine (20) and normally receives measurement data corresponding to a location of a probe (52) on the computer (60). The trackball (78) is located adjacent the probe (52) so that a user grasping the probe (52) can manipulate the trackball (78) to transmit data manipulation signals to the computer. Typically, the trackball (78) moves a cursor about the computer screen (129). A plurality of data entry buttons (84, 86) are included on the interface device (56) and enable the user to execute computer procedures selected by the cursor.

    Abstract translation: 用于坐标测量机(20)的计算机接口设备(56)包括跟踪球(78),其响应于轨迹球(78)的相应垂直运动(80,82)将垂直运动信号发送到计算机(60)。 计算机(60)与坐标测量机(20)互连,并且通常在计算机(60)上接收与探头(52)的位置对应的测量数据。 跟踪球(78)位于探头(52)附近,使得抓住探头(52)的用户可操纵轨迹球(78)将数据操作信号传送到计算机。 通常,轨迹球(78)围绕计算机屏幕(129)移动光标。 多个数据输入按钮(84,86)被包括在接口设备(56)上,并使用户能够执行由光标选择的计算机程序。

    METHOD AND DEVICE FOR SURVEYING AN AREA
    8.
    发明申请
    METHOD AND DEVICE FOR SURVEYING AN AREA 审中-公开
    用于调查区域的方法和设备

    公开(公告)号:WO1991014150A1

    公开(公告)日:1991-09-19

    申请号:PCT/GB1991000369

    申请日:1991-03-07

    CPC classification number: G01B5/004

    Abstract: A mechanical device (50) for surveying an area (2) and for subsequently replicating the surveyed area (2) comprises a base structure (53) and means (54) for taking a plurality of polar co-ordinate measurements relative to a central datum point (59) on the base structure (53). The base structure (53) is mounted on friction pads (56) so as not to be easily displaced from a surface to which the device is applied. The means (54) comprise counters (125 and 135) which display angular and distance measurements respectively. The counters are driven by relative rotation between the base structure (53) and structure (57 or 58) superimposed thereon.

    Abstract translation: 用于测量区域(2)并随后复制测量区域(2)的机械装置(50)包括基础结构(53)和用于相对于中心数据进行多个极坐标测量的装置(54) 点(59)在基部结构(53)上。 基部结构(53)安装在摩擦垫(56)上,以便不容易从施加装置的表面移位。 装置(54)包括分别显示角度和距离测量值的计数器(125和135)。 计数器由基底结构(53)和叠加在其上的结构(57或58)之间的相对旋转驱动。

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