A multi-station rotary magnetic particle flaw detector

By introducing limiting and positioning components into the magnetic particle flaw detector, combined with a bidirectional lead screw and a limiting ring, the automatic clamping and rotation of the workpiece is realized, which solves the problems of workpiece fixation and uneven spraying in the existing magnetic particle flaw detector, and improves the detection efficiency and equipment cleanliness.

CN224436236UActive Publication Date: 2026-06-30HEBEI HUAJIAN INSPECTION & TESTING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEBEI HUAJIAN INSPECTION & TESTING CO LTD
Filing Date
2025-08-07
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing portable magnetic particle flaw detectors lack a positioning structure, which makes it impossible to fix the workpiece and rotate it, affecting the uniform spraying of magnetic levitation liquid and the detection efficiency.

Method used

A multi-station rotary magnetic particle flaw detector was designed, comprising a limiting component and a positioning component. The workpiece is clamped by a bidirectional lead screw and a limiting ring, and the workpiece is driven to rotate by a drive source. At the same time, a magnetic levitation liquid spray plate and a drainage bucket are set to realize automatic spraying of the workpiece and centralized discharge of liquid.

Benefits of technology

It achieves uniform spraying and automatic clamping of workpieces, improves inspection efficiency, avoids random dripping of magnetic levitation liquid, and keeps the equipment clean.

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Abstract

This application discloses a multi-station rotary magnetic particle inspection machine, belonging to the field of magnetic particle inspection technology. It mainly includes a magnetic particle inspection machine body, on which limit components and positioning components are respectively installed. A fixing frame is connected to the top of the machine body. This multi-station rotary magnetic particle inspection machine utilizes a second drive source to drive two bidirectional lead screws to rotate, facilitating the opposing translational movement of corresponding adjusting blocks and limit rings. This allows the four limit rings to symmetrically clamp and fix two workpieces. The two stations facilitate simultaneous clamping of two workpieces for magnetic particle inspection. The silicone pad material helps increase the friction between the limit rings and the workpieces. A magnetic levitation liquid spray plate automatically sprays magnetic levitation liquid containing iron powder particles onto the workpieces. Two first drive sources facilitate the rotation of the workpieces, improving the uniformity of the spraying.
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