DEVICE FOR MEASURING DEVIATIONS FROM PERPENDICULARITY OF END SURFACE OF HOLE RELATIVE TO ITS AXIS Russian patent published in 2024 - IPC G01B5/12 G01B5/245 G01B3/26 

FIELD: measurement.

SUBSTANCE: device relates to the field of measurement equipment and can be used, for example, in the aviation industry when controlling the parameters of the holes at the joints of the detachable and central parts of the aircraft wing, as well as in machine building, when it is required to measure deviation from perpendicularity of the end relative to the axis of the hole in hard-to-reach places of the "well" type. Device includes a cylindrical hollow housing with side cutouts, on one side of which a holder is installed, and on the other side a collet clamp is installed. Holder is connected to the indicator. Drum connected to a rod with a measuring tip is installed spring-loaded inside the said housing with the possibility of rotation around the axis and movement along the axis. Measuring rod tip is U-shaped and has the possibility of interacting with the indicator.

EFFECT: high accuracy and reliability of measuring deviations of perpendicularity of the end surface of a hole relative to its axis with a one-sided approach or a difficult-to-access approach.

8 cl, 5 dwg