Machine tool
    1.
    发明授权
    Machine tool 失效
    机床

    公开(公告)号:US5730643A

    公开(公告)日:1998-03-24

    申请号:US586811

    申请日:1996-01-30

    摘要: A reference straight-edge is mounted on the worktable of a machine tool so that the position of the worktable and a workpiece carried thereon can be determined in respect of the x-axis of the machine tool by sensing the straight-edge; in addition a linear scale is carried by the tool carriage of the machine tool for cooperation with a reading head to provide an indication of the tool position along the x-axis. Another linear scale is carried by the worktable and coacts with a read head to provide the position of the worktable and workpiece along the z-axis. The linear scale of the tool and the reference straight-edge, and the reading head and sensing device associated therewith are all in the same plane. The workhead and tailstock spindles are equipped with hydrostatic bearings which have sensing devices to determine forces applied to workpieces carried between the headstock and tailstock on a worksteady and cooperate therewith to activate a probe to offset such forces.

    摘要翻译: PCT No.PCT / GB94 / 01663 Sec。 371日期1996年1月30日 102(e)日期1996年1月30日PCT 1994年8月1日PCT PCT。 第WO95 / 03915号公报 日期1995年2月9日参考直边安装在机床的工作台上,使得可以通过感测直线的方式来确定工作台的位置和承载在其上的工件相对于机床的x轴, 边缘; 此外,由机床的工具托架承载线性刻度以与读取头配合以提供沿着x轴的刀具位置的指示。 另一个线性刻度由工作台承载并与读头共同作用,以提供工作台和工件沿Z轴的位置。 工具和参考直边的线性刻度以及与其相关联的读取头和感测装置都在同一平面内。 工作头和尾座主轴配有静压轴承,其具有传感装置,用于确定施加到工作台上的头架和尾架之间承载的工件的力,并与之配合以激活探头以抵消这种力。