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    Play-free device for driving a rotary table
    5.
    发明授权
    Play-free device for driving a rotary table 失效
    用于驱动旋转台的无播放装置

    公开(公告)号：US6003409A

    公开(公告)日：1999-12-21

    申请号：US885932

    申请日：1997-06-30

    申请人： Harald Lamsfuss ,  Norbert Kaesler ,  Klaus Ozdyk

    发明人： Harald Lamsfuss ,  Norbert Kaesler ,  Klaus Ozdyk

    IPC分类号： B23F23/10 ,  B23F23/12 ,  B23Q1/52 ,  B23Q5/40 ,  B23Q5/56 ,  G01B7/30 ,  B23Q17/00 ,  B23F5/16 ,  G01B5/00

    CPC分类号： B23Q1/52 ,  B23F23/10 ,  B23F23/1293 ,  B23Q5/40 ,  B23Q5/56 ,  G01B7/30 ,  Y10T74/1412 ,  Y10T74/1429 ,  Y10T74/1471

    摘要： Two separate drive systems for driving a rotary table about an axis of rotation relative to a support member within a predeterminable angular segment. The first drive system can move the rotary table into a starting position and the second drive system is a linear one and has a play-free pre-loaded ball-and-screw spindle drive by means of which the movement of the rotary table is performed within the predeterminable angular segment. The linear drive system can be coupled and uncoupled free from play to and from the rotary table by means of a clamping system, with the linear drive system being connected to the support member and to the clamping system with two play-free joints. A rotary measuring system is mounted at the axis of table rotation to ascertain the table's current angle of rotation. Once the rotary table has been moved to the starting position, the first drive system is switched off and the second drive system is rigidly connected to the rotary table by the clamping system, and thereafter the table is moved free from play by the spindle drive powered by a servomotor under CNC control.

    摘要翻译： 两个单独的驱动系统，用于相对于预定角度段内的支撑构件围绕旋转轴线旋转旋转台。 第一驱动系统可以将旋转台移动到起始位置，而第二驱动系统是线性驱动系统，并且具有无播放的预加载的滚珠和丝杠主轴驱动装置，通过该驱动系统进行旋转台的运动 在可预定的角度段内。 线性驱动系统可以通过夹紧系统与旋转工作台相连接和脱离联动，线性驱动系统通过两个无游隙接头连接到支撑构件和夹紧系统。 旋转测量系统安装在工作台旋转轴上，以确定工作台当前的旋转角度。 一旦旋转台已经移动到起始位置，第一驱动系统被关闭，并且第二驱动系统通过夹紧系统刚性地连接到旋转工作台，然后通过主轴驱动的动力使工作台移动而不用播放 由CNC控制下的伺服电机。

    Machine tool having a special indexable turret and method of operation
    6.
    发明授权
    Machine tool having a special indexable turret and method of operation 失效
    机床具有特殊的可转位转台和操作方法

    公开(公告)号：US4018112A

    公开(公告)日：1977-04-19

    申请号：US528159

    申请日：1974-11-29

    申请人： James W. Heaton ,  Donald W. Warren ,  Albert B. Albrecht

    发明人： James W. Heaton ,  Donald W. Warren ,  Albert B. Albrecht

    IPC分类号： B23Q16/02 ,  B23B29/00 ,  B23B29/04 ,  B23B29/20 ,  B23B29/24 ,  B23B29/32 ,  B23B1/00

    CPC分类号： B23B29/20 ,  B23B29/242 ,  Y10T408/37 ,  Y10T74/1429 ,  Y10T82/10 ,  Y10T82/2587

    摘要： A machine tool having an indexable turret in which the turret has a plurality of stations for supporting tools and with the tools in the stations being presented individually to workpiece operating position in a respective indexed position of the turret during a work cycle. At least two of the stations of the turret are provided with identical tools, forming a group, and on each work cycle one of the pair of stations is bypassed thereby providing a reserve tool which can be made effective without interrupting the work cycle of the machine. Advantageously, most of the tools carried by the turret are provided in groups so that substantially a complete set of reserve tools is provided. Each tool can be used for a certain number of work cycles, or the machine can be provided with adaptive, or tool sensing, controls which sense the dulling or breaking of a tool, or workpieces taken from the machine can be periodically guaged to determine when a particular tool has worn down to the allowable limit. The back up or reserve tools can then be called into play, either individually, or as a set. The invention is adapted for use with automatic machines with an automatic arrangement provided for changing from one tool of a group thereof to an identical tool of the same group. In this manner, a machine tool having a turret tooled up according to the present invention can be maintained in operation for a substantially longer period of time than has heretofore been possible thereby increasing production from the machine tool.

    摘要翻译： 一种具有可转位转台的机床，其中所述转台具有用于支撑工具的多个工位，并且所述工位中的工具在工作循环期间分别呈现在所述转台的相应的分度位置中的工件操作位置。 转塔中的至少两个工位设置有相同的工具，形成一组，并且在每个工作循环中，旁路一对工位中的一个工位，从而提供一种可以在不中断机器的工作周期的情况下有效的备用工具 。 有利的是，转塔所携带的工具中的大多数工具是以组合的形式提供的，因此提供了大量一整套备用工具。 每个工具可以用于一定数量的工作循环，或者可以为机器提供自适应或工具感测控制，其感测到工具的钝化或断裂，或者可以定期地对从机器取出的工件进行调整以确定何时 特定的工具已经磨损到允许的极限。 然后，备份或预留工具可以单独调用或作为一组调用。 本发明适用于具有自动装置的自动机器，该自动装置用于从其组中的一个工具改变为相同组的相同工具。 以这种方式，具有根据本发明的加工的转塔的机床可以保持在比迄今为止可能更长的时间段的操作中，从而增加了机床的生产。

    Rotary indexing machine
    7.
    发明授权
    Rotary indexing machine 失效
    旋转式折页机

    公开(公告)号：US3785223A

    公开(公告)日：1974-01-15

    申请号：US3785223D

    申请日：1972-06-05

    申请人： CLEVELAND TWIST DRILL CO

    发明人： STEELE R

    IPC分类号： B23Q5/06 ,  B23Q16/02 ,  B23Q16/06

    CPC分类号： B23Q5/06 ,  B23Q16/028 ,  B23Q16/065 ,  Y10T74/1412 ,  Y10T74/1429

    摘要： A rotary indexing machine comprising a housing, a spindle mounted for rotation in the housing, an index plate mounted on the spindle substantially coaxially therewith, means for mounting a workpiece-holding member substantially coaxially with the spindle, a fluid motor for continuously rotating the spindle in one direction about its axis, the motor being located within the housing substantially concentric with the spindle and positioned between the index plate and the means for mounting the workpieceholding means, means for periodically arresting rotation of the spindle for a predetermined interval of time during which the workpiece may be machined, and means for periodically releasing the rotation arresting means. The means for periodically arresting rotation of the spindle for automatic step indexing, may be easily rendered inoperative so that thereafter the spindle will be rotated continuously without step indexing. The preferred embodiment also includes means for moving the spindle axis through an arc relative to a horizontal position and means for adjusting the spindle angularly about its axis and relative to the location plane of the index plate, whereby the location sides of the notches of the index plate may be accurately aligned with premachined notches existing in the workpiece.

    摘要翻译： 一种旋转分度机，包括壳体，安装成用于在壳体中旋转的主轴，与主轴同轴安装的分度板，用于安装与主轴大致同轴的工件保持部件的装置，用于连续旋转主轴的流体马达 沿着其轴线的一个方向，电动机位于壳体内与心轴基本同心并且位于分度板和用于安装工件保持装置的装置之间，用于周期性地阻止心轴的旋转预定间隔时间的装置 在此期间可以加工工件，以及用于周期性地释放旋转止动装置的装置。 用于定期地阻止主轴旋转以进行自动步进分度的装置可能容易地变得不可操作，从而此后主轴将在没有阶跃分度的情况下连续旋转。 优选实施例还包括用于使主轴轴线相对于水平位置移动电弧的装置，以及用于相对于折射板的位置平面相对于其轴线和相对于折射板的位置平面角度地调节主轴的装置，由此指示凹槽的位置侧 板可以精确地对准存在于工件中的预加工凹口。