Aircraft lifting shaft welding seam radiographic inspection automatic angle rotating device and using method thereof

Abstract

The invention relates to the field of aircraft lifting shaft welding seam radiographic inspection, in particular to an aircraft lifting shaft welding seam radiographic inspection automatic angle rotating device and a using method thereof. The aircraft lifting shaft welding seam radiographic inspection automatic angle rotating device comprises a bracket, a fixed base and an operation control cabinet and further comprises a movable base; a lead screw, a servo motor matched with the lead screw and a crawler belt matched with the servo motor are arranged on the fixed base, a rubber wheel is arranged on the movable base, an anti-skid wedge block is arranged at the lower end of the rubber wheel, and a lifting shaft is arranged at the upper end of the rubber wheel. To be specific, the method comprises the following steps: S1, determining a position; S2, inserting wires; S3, adjusting a light source; S4, placing a lifting shaft; S5, switching on a power supply; S6, checking the imaging effect; S7, repeatedly performing collecting; S8, switching a circumferential weld joint site; S9, repeatedly performing exposing; S10, cutting off power; and S11, replacing the lifting shaft; and automatic rotation of an angle required by welding seam exposure and back-and-forth switching of exposure positions are realized through the lifting shaft.

Description

technical field [0001] The invention relates to the field of radiographic flaw detection of welding seams of aircraft lifting shafts, in particular to an automatic rotation angle device for radiographic flaw detection of welding seams of airplane lifting shafts and a method for using the same. Background technique [0002] The outer diameter of the aircraft lift shaft is φ130, the wall thickness is about 10mm, and the outer diameter of the two ends of the lift shaft is φ40. Lifting shaft looks like figure 2 As shown, left and right symmetrical. During the overhaul of the aircraft, according to the technical conditions, it is necessary to carry out radiographic flaw detection on the four circular welds on the lifting shaft. Referring to the requirements of GJB 1187A "Radiographic Inspection", the method of vertical transillumination is required, and the exposure is performed every 60° rotation, such as image 3 As shown in the transillumination arrangement, the radiation s...

AI Technical Summary

Problems solved by technology

According to the traditional film method of X-ray flaw detection, because of the problem of radiation damage to the body, the operator needs to repeatedly enter and exit the exposure room. Each exposure needs to manually rotate the lifting shaft 60° and replace the film once. The efficiency is very low, and personnel reciprocate in and out for exposure. Lead rooms, which increase the risk of personnel exposure to radiation and heavy metal lead

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