Digital Countersink Depth Measuring Instrument

Abstract

The invention belongs to the technical field of measuring and relates to a digital dimple depth gauge which is used for measuring the relative / absolution depth of a dimple so as to detect whether the depth of the dimple is in an allowed error range or not. The digital dimple depth gauge comprises a gauge shell, a gauge lower cover, a support leg, a sleeve, a measuring column, a large gland I, a small gland, a guide column, a measuring sleeve, a displacement sensor, a measuring module shell, a measuring module rear cover, a gauge upper cover, a display module, a power switch, a battery, a handle end cover, a large gland II and a collecting plate. The digital dimple depth gauge has the advantages that the depth of the dimple is evaluated by the displacement change of the internal measuring column in the standard dimple and the internal measuring column in a to-be-measured dimple, the displacement sensor is mounted at the top end of the measuring column, the displacement change of the measuring column can be converted into an analog signal, and the analog signal can be processed by a data collecting system to obtain a precise measuring result.

Description

technical field [0001] The invention belongs to the technical field of measurement, and relates to a digital countersink depth measuring instrument for measuring the relative / absolute depth of a countersink to detect whether the depth of the countersink is within an allowable error range. [0002] technical background [0003] The fixing of the aircraft skin mainly depends on the riveting with the aircraft frame. The quality of the riveting has a great influence on the quality of the aircraft assembly. This requires that the countersunk hole of the riveting must be within the specified error range, and the processing tool should be replaced in time when the error range is exceeded. Through hole error is better controlled, mainly because the error of spot facing is not easy to measure, and the main index of spot facing is the depth of spot facing. [0004] At present, in the production process, the method of manual comparison is generally adopted, that is, to make a standard p...

AI Technical Summary

Problems solved by technology

This method can get relatively accurate results, but the processing accuracy of the device is very high, and it depends on manual reading, which is greatly affected by human factors, time-consuming and laborious, and the work efficiency is low

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