Blind zone flexibility measurement tooling for bulkhead structure of passenger-to-cargo aircraft

Abstract

The utility model relates to a flexible measurement tool for blind area of ​​a bulkhead structure of a passenger-to-cargo aircraft, comprising: a base body, a disc shaft, a scale disc, a probe, and a scale disc driving device. The scale disk is rotated by the scale disk driving device, and at this time, the probe protrudes through the through hole and then moves in a straight line. When the probe rod part of the probe is stretched out to a sufficient length, use the probe hook to pull the surface of the workpiece in the distal hole, and then rotate the scale disc in reverse through the scale disc drive device until the proximal plane of the measured workpiece fits the measurement At this time, move the tooling to disengage the probe hook from the surface of the workpiece in the far-end hole, and observe the scale indication on the scale disc within the sight range of the tooling device to obtain the reading of the hole wall of the workpiece, and complete the test. One measurement, which improves the measurement efficiency and saves maintenance costs.

Description

technical field [0001] The invention relates to the technical field of measuring tools, in particular to a flexible measuring tool for the blind area of ​​the clapboard structure of a passenger-to-cargo aircraft. Background technique [0002] During the installation of the 9G partition of Boeing 737CL passenger-to-cargo aircraft, it is necessary to drill holes in different positions of various structural parts such as aircraft skin, purlins, webs, etc., and then install rivets, bolts, blind rivets and other fasteners to complete the structure For the connection, the Boeing manual requires that the length of the fastener needs to match the thickness of the hole wall. At present, there is no effective tool that can intuitively, clearly and conveniently complete the measurement of the size of the inaccessible area of ​​​​the area structure. In addition, the positions where fasteners need to be installed in this area vary widely. Existing structures in many positions are often d...

AI Technical Summary

Problems solved by technology

At present, there is no effective tool that can intuitively, clearly and conveniently complete the measurement of the size of the inaccessible area of ​​​​the area structure. In addition, the positions where fasteners need to be installed in this area vary widely. Existing structures in many positions are often difficult to measure. Interference occurs. On the other hand, the structure that needs to be measured is often in a closed area, so that the line of sight cannot be touched, and only one-end approach measurement, or visual estimation is performed. The above reasons make the size measurement time-consuming and labor-intensive. Work efficiency is low

Time loss and maintenance cycle extension caused by repeated disassembly and assembly due to improper length of mounting parts often occur, resulting in reduced work efficiency of workers and increased maintenance costs of air operators

Images