X-ray multi-purpose nondestructive flaw detection device and workpiece detection method thereof

Abstract

The present invention discloses an X-ray multi-purpose nondestructive flaw detection device and a workpiece detection method thereof. The structure of the device includes a protective lead room, an objective table set up in the protective lead room, a linear array detector, and an X-ray machine. The linear array detector and X-ray machine respectively have a motion mechanism capable of operating independently; the motion mechanism operating independently of the X-ray machine includes an X-ray machine transverse motion mechanism and an X-ray machine longitudinal motion mechanism; and the motion mechanism operating independently of the linear array detector includes a detector transverse motion mechanism, a detector longitudinal motion mechanism, a rotary chuck, a lifting mechanism and a translation mechanism, so that the device is compatible with CT (three-dimensional) detection and DR (planar) detection functions. In CT mode, high-resolution image files can be obtained for research and development or sampling operations; DR mode is applicable to mass workpiece detection with low detection precision requirement; thus, detection mode can be converted based on need to meet the needs of flat or three-dimensional imaging.

Description

technical field [0001] The invention relates to the technology in the field of non-destructive testing, in particular to an X-ray multifunctional non-destructive testing device and a workpiece testing method thereof. Background technique [0002] The main structure and principle of existing X-ray equipment: X-ray transillumination workpiece, imaging detector receives and converts digital signals to the computer, and then restores them to images by special software for quality identification and analysis. However, the existing X-ray equipment has the following defects due to the limitation of the design structure: [0003] 1. Single function mode: the current X-ray equipment either focuses on CT (stereoscopic) function or DR (plane) function. The former cannot cope with the detection of large quantities of workpieces, and the latter cannot meet the requirements of high detection accuracy, and the utilization rate of equipment cannot be more fully reflected. Therefore, gener...

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Problems solved by technology

[0003] 1. Single function mode: the current X-ray equipment either focuses on CT (stereoscopic) function or DR (plane) function. The former cannot cope with the detection of large quantities of workpieces, and the latter cannot meet the requirements of high detection accuracy, and the utilization rate of equipment cannot get better expression

Therefore, in general, two types of X-ray devices need to be configured, one is responsible for the CT function and the other is responsible for the DR function, resulting in high equipment purchase costs and a large footprint

[0004] 2. Insufficient detection accuracy: At present, X-ray equipment is only equipped with a set of motion mechanisms, and the application range is not wide enough. The detection requirements for different process methods are relatively limited, and the detection accuracy and efficiency cannot be effectively balanced. There are defects such as short service life, high maintenance and replacement costs

This will undoubtedly increase the construction cost, and it is inconvenient to move the X-ray equipment. All workpieces to be tested need to be moved to the shielding room, which is time-consuming and labor-intensive, adding unnecessary burden

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