Nondestructive detection device and detection method for barrel-shaped complex curved surface workpiece

A complex surface, non-destructive testing technology, applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of vertical transillumination, the inability to realize the arbitrary surface position of complex curved workpieces, etc.

Active Publication Date: 2021-09-14
BEIJING HANGXING MACHINERY MFG CO LTD
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  • Application Information

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Problems solved by technology

[0005] In view of the above analysis, the embodiment of the present invention aims to provide a non-destructive testing device and testing method for barrel-shaped complex curved surface workpieces, to solve the problem that the existing nondestructive testing devices and methods cannot realize vertical transillumination of any surface position of complex curved surface workpieces

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  • Nondestructive detection device and detection method for barrel-shaped complex curved surface workpiece
  • Nondestructive detection device and detection method for barrel-shaped complex curved surface workpiece
  • Nondestructive detection device and detection method for barrel-shaped complex curved surface workpiece

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Embodiment 1

[0058] A specific embodiment of the present invention discloses a non-destructive testing device for barrel-shaped complex curved surface workpieces, such as figure 1 shown. The device includes: a detector, a ray source, a first motion mechanism, a second motion mechanism, a workpiece turntable, and a controller;

[0059] The workpiece turntable is a ring structure, and the workpiece to be detected is a barrel-shaped structure. The workpiece to be detected is placed on the workpiece turntable undercut, and the detection in the circumferential direction of the detected workpiece is realized through the rotation of the turntable;

[0060] The ray source adopts the way of directional radiation and is assembled on the first motion mechanism inside the detected workpiece;

[0061] Specifically, the first motion mechanism is a 3-degree-of-freedom motion mechanism, which can move in the horizontal direction and the vertical direction, and the pitch angle can be adjusted, so as to re...

Embodiment 2

[0072] Another specific embodiment of the present invention discloses a method for non-destructive testing of barrel-shaped complex curved surface workpieces, such as figure 2 shown, including the following steps:

[0073] S1. Dividing the surface of the workpiece to be measured into multiple regions;

[0074] According to different workpiece inspection requirements, different area division methods can be used on the surface of the workpiece to be inspected.

[0075] Since the imaging field of view of digital ray inspection is limited by factors such as the size of the detector plane, the radiation angle of rays, and the imaging magnification ratio, in order to meet the full coverage inspection of large-sized workpieces, it is necessary to perform partition inspection on the entire surface of the workpiece. The partition scheme is as follows: image 3 shown. According to the design of the motion scanning method of the present invention, the workpiece is first layered from b...

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Abstract

The invention relates to a nondestructive detection device and a nondestructive detection method for a barrel-shaped complex curved surface workpiece, belongs to the field of ray nondestructive testing, and solves the problem that a conventional detection device and method cannot realize vertical transillumination detection on any position of the surface of the workpiece and are not suitable for complex curved surface detection. The surface of the workpiece is divided into a plurality of areas, the position and the direction of the center point of each area are determined, the positions and the directions of a detector and a radiation source are determined according to the positions and the directions of the center points, and full-coverage low-redundancy single-wall vertical transillumination detection on the large-size cylindrical complex curved surface workpiece is achieved. The device and method can be widely applied to the field of ray nondestructive detection.

Description

[0001] The invention relates to the field of non-destructive testing of radiation, in particular to a non-destructive testing device and a testing method for barrel-shaped workpieces with complex curved surfaces. Background technique [0002] Non-destructive testing is an indispensable tool in industrial development, which reflects a country's industrial development level to a certain extent. As a conventional non-destructive testing method, X-ray testing technology has been used in the industrial field for nearly a hundred years. In the early days and in some current industrial fields (such as the field of military manufacturing), X-ray inspection usually uses film photography as the main detection method. And other problems, it has not adapted to the development trend of non-destructive testing in the information age. At present, digital ray nondestructive testing technology has been widely used in the industrial field. On the premise of ensuring the quality of product ins...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N23/04
CPCG01N23/04G01N2223/03G01N2223/3307G01N2223/646G01N2223/629
Inventor 王海鹏李保磊徐圆飞司昌楠胡艳涛张晓杰田子夜谷柱
Owner BEIJING HANGXING MACHINERY MFG CO LTD
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