Automated imaging magnetic particle flaw detector of railway axle and flaw detection method

A magnetic particle inspection and axle technology, applied in the direction of material magnetic variables, etc., can solve the problems of high accuracy of inspection results, low error and missed detection rate, low labor intensity, etc. Effect

Active Publication Date: 2017-10-10
北京博力加机电技术有限公司 +1
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  • Abstract
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Problems solved by technology

[0008] The purpose of the present invention is to provide an automatic imaging magnetic particle flaw detection machine and method for railway axles, which has fast flaw detection speed, high accuracy of flaw detection results, small error and omission detection rate, displayable defect magnetic trace images, traceable flaw detection

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  • Automated imaging magnetic particle flaw detector of railway axle and flaw detection method
  • Automated imaging magnetic particle flaw detector of railway axle and flaw detection method

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Embodiment Construction

[0035] The automatic imaging magnetic particle flaw detection machine of the railway wheel axle of the present invention is located on the wheel set inspection and maintenance assembly line, and is connected with the inner track of the production site. Such as figure 1 and figure 2 As shown, the railway axle automatic imaging magnetic particle flaw detector of the present invention includes a frame 20, a workpiece feeding mechanism 21 (track passing type) responsible for sending the wheel axle 10, a workpiece sending mechanism 22 (rail passing type) responsible for sending the wheel axle 10, a support The rotating mechanism that holds the axle 10 and drives the axle 10 and the wheels 14 to rotate, the magnetic suspension spraying system 23 that is responsible for the spraying and recovery of the magnetic suspension, the axle circumferential magnetization mechanism that magnetizes the axle 10 in the circumferential direction, and the axle 10 that performs longitudinal magnetiz...

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Abstract

The invention discloses an automated imaging magnetic particle flaw detector of a railway axle and a flaw detection method. The flaw detector comprises a frame, a work piece feeding mechanism, a work piece delivering mechanism, a rotating mechanism, a magnetic suspension fluid spraying system, an axle circumferential magnetizing mechanism, and an axle longitudinal magnetizing mechanism. The automated imaging magnetic particle flaw detector further comprises a high-definition camera and an ultraviolet ray lamp for collecting magnetic traces of the axle body, a high-definition camera and an ultraviolet ray lamp for collecting magnetic traces of an axle neck and a dustproof plate, and a high-definition camera and an ultraviolet ray lamp for collecting magnetic traces at inside and outside of a wheel web plate of the axle; all high-definition camera and ultraviolet ray lamps are installed on a vertically moveable lifting device; an ultraviolet illuminometer is further installed on the lifting device. The automated imaging magnetic particle flaw detector is fast in flaw detecting speed, high in result accuracy, small in mistakes and omissions; the defected magnetic trace image can be displayed, the flaw detection result can be traced; moreover, the flaw detectors have good working environment and low labor intensity; the flaw detector can solve problems existed in the existing magnetic powder flaw detection technology.

Description

technical field [0001] The invention relates to a device and method for automatic imaging magnetic particle flaw detection of railway axles, belonging to the technical field of magnetic particle flaw detection in nondestructive testing. Background technique [0002] At present, the magnetic particle flaw detection of railway vehicle axles is still used to observe the magnetic marks on the magnetized axle body, journal, and wheel web with human eyes, and make judgments on the display of magnetic marks based on work experience and give conclusive opinions way of doing. From the actual implementation, it can be found that this traditional magnetic particle inspection method has the following defects: [0003] 1. The detection speed is slow and the work efficiency is low. [0004] 2. High labor intensity, repetitive, monotonous, and unchanging workflows bring serious visual fatigue to flaw detectors, which will lead to problems such as simplified processes, omissions, missed d...

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Application Information

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IPC IPC(8): G01N27/84
CPCG01N27/84
Inventor 孙振国陈强杜学钢王晓娜马涛高成旺戈凯明
Owner 北京博力加机电技术有限公司
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