测量螺栓孔错位量的装置及方法

Device and method for measuring misalignment quantities of bolt holes

Abstract

The invention provides a device and a method for measuring the misalignment quantities of bolt holes. The device comprises a tubular body and a radial displacement measuring mechanism, wherein an external thread part is arranged at the lower part of the tubular body; the radial displacement measuring mechanism is arranged in an inner cavity in the middle of the tubular body, is provided with a telescopic measuring rod which extends outwards along the radial direction of the tubular body through a measuring hole formed in the side wall of the tubular body, and is used for measuring the displacement quantity of the measuring rod moving along the radial direction of the tubular body. During measurement, the tubular body penetrates through a first unthreaded to-be-measured bolt hole, the external thread part is screwed into internal threads of a second to-be-measured bolt hole with the internal threads, and the measuring rod abuts against the inner wall of the first to-be-measured bolt hole. According to the device and the method for measuring the misalignment quantity of the bolt holes, provided by the invention, the accurate misalignment quantities of the first to-be-measured bolt hole and the second to-be-measured bolt hole can be more conveniently obtained through the radial displacement, measured by the radial displacement measuring mechanism, of the measuring rod.
本发明提供了测量螺栓孔错位量的装置及方法,上述装置包括:管状本体,在管状本体的下部设置有外螺纹部;径向位移测量机构,设置在管状本体的中部的内腔中,径向位移测量机构具有一可伸缩的测量杆,通过设置于管状本体侧壁上的测量孔沿管状本体的径向方向向外伸出,径向位移测量机构用于测量所述测量杆沿所述管状本体的径向移动的位移量。在测量时,管状本体穿过无螺纹的第一待测螺栓孔,外螺纹部旋入设有内螺纹的第二待测螺栓孔的内螺纹中,测量杆抵接在第一待测螺栓孔的内壁上。本发明提供的测量螺栓孔错位量的装置及方法可以较方便地通过径向位移测量机构测量到的测量杆的径向位移得到准确的第一待测螺栓孔与第二待测螺栓孔的错位量。

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