Ring magnet forming die

By designing a ring magnetic forming mold containing elastic gasket and movable mold structure, the problems of low ring magnetic chamfer efficiency and easy mold damage in the prior art are solved, and efficient and rapid inner chamfer forming and mold protection are achieved.

CN222672798UActive Publication Date: 2025-03-25HUNAN AEROSPACE MAGNETOELECTRIC TECH CO LTD
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Patent Information

Application Number
CN202421402570.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-19
Publication Date
2025-03-25
Estimated Expiration
2034-06-19

AI Technical Summary

Technical Problem

The existing annular magnetic chamfering technology has problems such as low oil efficiency, easy to damage the annular magnetism, wasted labor and high cost. If sufficient magnetic powder is not filled in the mold cavity during pressing and forming, the pressing failure will lead to damage to the mold.

Method used

A ring magnetic forming mold is designed, including a base, core rod, elastic gasket, first mold, second mold and outer mold. By setting up elastic gasket and movable mold structure, the magnetic powder is fully filled and uniformly pressed, avoiding mold damage, and achieving efficient and rapid inner chamfer forming.

Benefits of technology

It effectively reduces mold damage, improves chamfering efficiency and quality, ensures the accuracy and completeness of molding, avoids additional back-end processes, and is suitable for the ferrite field.

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Abstract

The utility model provides a ring magnet forming die. The ring magnet forming die comprises a base, a first die, a second die, an outer die and a core rod arranged on the base, the first mold is located above the core rod, the second mold is movably arranged on the core rod in a sleeving mode, the outer mold is movably arranged on the second mold in a sleeving mode, a cavity used for containing magnetic powder is defined by the first mold, the outer mold and the second mold, a first protrusion is arranged on the face, close to the cavity, of the first mold, and an elastic gasket is arranged between the core rod and the base. According to the annular magnetic product inner chamfering device, damage to the die can be reduced, annular magnetic products can be efficiently and rapidly subjected to inner chamfering in the forming process, chamfering efficiency is improved, and chamfering quality is ensured.
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