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    Method and apparatus for grinding a workpiece
    31.
    发明授权
    Method and apparatus for grinding a workpiece 失效
    用于研磨工件的方法和设备

    公开(公告)号：US4292766A

    公开(公告)日：1981-10-06

    申请号：US108364

    申请日：1979-12-31

    申请人： Calvin K. Kirk ,  Glover C. Joyce ,  Francis L. Messier

    发明人： Calvin K. Kirk ,  Glover C. Joyce ,  Francis L. Messier

    IPC分类号： B24B5/04 ,  B24B5/42 ,  B24B47/20

    CPC分类号： B24B47/206 ,  B24B5/04 ,  B24B5/42 ,  Y10T409/303864 ,  Y10T409/307336 ,  Y10T409/30756

    摘要： An improved grinding method and apparatus is advantageously used to sequentially grind the pins of a crankshaft. During the grinding of each crankpin, the pin is supported by a steadyrest. During an initial grinding operation, the crankpins are measured or gauged to determine if they are out-of-round by an amount which is greater than the tolerances for the finished crankshaft and less than a maximum amount. If a crankpin is out-of-round by an amount which is equal to or greater than a maximum amount, the crankshaft is rejected. However, if a crankpin is out-of-round by an amount which is less than the maximum amount and more than the tolerance for a finished pin, a second grinding operation is initiated after the initial grinding operation has been completed. During the initial and second grinding operations, a main drive motor is effective to press the steadyrest against the crankpins. A secondary drive motor is provided to adjust the position of the steadyrest to compensate for the smaller size to which the crankpins are ground during the second grinding operation. The finished crankshaft is removed from the grinding machine only after both the initial and second grinding operations have been completed. When the number of consecutive out-of-round crankpins and/or crankshafts becomes excessive, a control signal initiates shutting down of the grinding machine and the establishing of an alarm to prevent the grinding of a large number of out-of-round crankshafts.

    摘要翻译： 改进的研磨方法和设备有利地用于顺序研磨曲轴的销。 在每个曲柄销的磨削期间，销由一个稳定支架支撑。 在初始研磨操作期间，测量或测量曲柄销以确定它们是否不圆度大于成品曲轴的公差并小于最大量。 如果曲轴销不合适的量大于或等于最大值，则曲轴被排除。 然而，如果曲轴销不合适的量小于最大量并且大于成品销的公差，则在初始研磨操作完成之后开始第二研磨操作。 在初始和第二次研磨操作期间，主驱动马达有效地将稳定器压靠在曲柄销上。 提供二次驱动电机以调节稳定器的位置，以补偿在第二次磨削操作期间曲柄销被磨削的较小尺寸。 仅在初次和第二次研磨操作完成后，才将完成的曲轴从研磨机中取出。 当连续不完整的曲柄销和/或曲轴的数量变得过大时，控制信号开始关闭磨床并建立报警器，以防止磨削大量的外圆曲轴。

    Machining method
    38.
    发明授权
    Machining method 有权
    加工方法

    公开(公告)号：US09067283B2

    公开(公告)日：2015-06-30

    申请号：US13819799

    申请日：2011-07-25

    申请人： Yoshikatsu Sato

    发明人： Yoshikatsu Sato

    IPC分类号： B23P13/00 ,  B23Q11/00 ,  B23Q17/20 ,  B23C3/00 ,  B23Q17/24 ,  G01B21/04 ,  B23Q17/22

    CPC分类号： B23P13/00 ,  B23Q17/22 ,  B23Q17/2233 ,  B23Q17/2461 ,  G01B21/045 ,  Y10T29/49 ,  Y10T408/175 ,  Y10T409/303752 ,  Y10T409/303864 ,  Y10T409/30728 ,  Y10T409/307336

    摘要： A touch probe is attached to a main shaft, and the position (Pp1) of a tip with the probe in an on state and the position (Pp2) of the tip with the probe in an off state, when the end of the main shaft is positioned at a prescribed position (Ps1), are optically measured. The dead zone length of the probe is calculated based on the positions (Pp1, Pp2), and the apparent length of the probe is calculated based on the positions (Ps1, Pp2). After the substantive length of the probe has been calculated by adding the dead zone length to the apparent length, the probe derives the actual length of a workpiece, and a tool is then attached to the main shaft, the position (Pt1) of the tip of the tool is optically measured and the actual length of the tool is calculated.

    摘要翻译： 将探头附接到主轴，并且将探头的尖端的位置（Pp1）设置为导通状态，并且将尖端与探针的位置（Pp2）分离为关闭状态，当主轴 位于规定位置（Ps1），被光学测量。 基于位置（Pp1，Pp2）计算探头的死区长度，并且基于位置（Ps1，Pp2）计算探针的表观长度。 在通过将死区长度加到表观长度来计算探头的实际长度之后，探头导出工件的实际长度，然后将工具附接到主轴，尖端的位置（Pt1） 的光学测量并计算刀具的实际长度。