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    • 57. 发明公开
    • Vacuum cup with precision hard stop
    • Saugnapf mit einem hartenPräzisions-Anschlag
    • EP1088624A2
    • 2001-04-04
    • EP00203390.0
    • 2000-09-29
    • THE BOEING COMPANY
    • Stone, Paul R.Strand, David E.Nelson, Paul E.
    • B25B11/00B23Q3/08B23Q16/00
    • B25B11/005B23B31/307Y10T29/49998
    • A method and apparatus for holding a part on a fixture in a precisely known predetermined position includes pressing a surface of the part against a vacuum head and sealing an annular elastomeric sealing ring against the part surface. A valve button of a valve is engaged by the part surface to open the valve and establish communication between a vacuum source. The part is pulled by the vacuum against a hard stop in the vacuum head having a fixed precisely known relationship to said vacuum head reference surface. The hard-stop can be mounted in the base of the vacuum head for pivoting about at least one axis to self-align the hard-stop face with the part face.
    • 用于将精确保持在精确已知的预定位置的固定件上的零件夹持的方法和装置包括将零件的表面压在真空头上并将环形弹性体密封环密封在零件表面上。 阀的阀按钮通过部件表面接合以打开阀门并建立真空源之间的连通。 该部件通过真空被吸附在具有与所述真空头参考表面固定的精确已知关系的真空头中的硬止动件上。 硬止动件可以安装在真空头的基座中,用于围绕至少一个轴线枢转以使硬止动面与部件面自对准。