Improved magnet ring inductance online automatic separation equipment

Abstract

The invention discloses a piece of improved magnet ring inductance online automatic separation equipment, comprising a multi-interval rotary disk, a testing base, a metal cover, a jacking table, an inductance tester, an automatic feeding device, a discharging device and an internal PLC (Programmable Logic Controller) integrated control panel, wherein a flexible disk formed by multiple fan-shaped blocks in an enclosed manner is concentrically arranged in each through hole of the multi-interval rotary disk; the testing base comprises a metal base body, a lower metal column, a standard magnet ring, a cover-free metal box and an annular insulation cover; the lower metal column comprises a central guide hole and a pressure sensor; an upper metal column matching with the central guide hole is arranged in the centre of the metal cover; a vertical sliding bar capable of slipping radially is arranged on the jacking table; and the metal base body, the lower metal column, the upper metal column, the cover-free metal box and the metal cover form a closed magnetic continuity. After adopting the above structure, the whole inductance separation process has a high degree of automation and does not need manual intervention; the testing speed and efficiency are high; and the testing data is accurate, reliable and not easy to judge mistakenly.

Description

technical field [0001] The invention relates to a sorting device for magnetic ring inductance, in particular to an improved on-line automatic sorting device for magnetic ring inductance. Background technique [0002] After the production of magnetic products is completed, it is necessary to test the magnetic products to check whether the magnetic products are qualified and provide data support for future process improvement. [0003] For the inductance test of toroidal cores, especially for magnetic devices with small inductance, such as nickel-zinc ferrite cores with small inductance, the unit of single-turn inductance is nH level, and the existing inductance tester basically cannot directly test it. [0004] In order to test its inductance and avoid instrument and test errors, the existing technology is to wind a multi-turn coil on the magnetic core to be tested, usually more than 50 turns, and use peripheral testing instruments to read the inductance value. [0005] Howe...

AI Technical Summary

Problems solved by technology

[0008] The structure of the above two patent applications can basically complete the inductance sorting of the magnetic ring, but in the test use, it is all done manually. For each test, the metal cover needs to be removed from the metal column, and then the to-be-separated Put the magnetic ring on the annular insulating cover or the annular insulating cover, then close the metal cover, test and record, and finally take out the metal cover and the tested magnetic ring in the reverse order, etc. The operation steps are cumbersome, back and forth, and test The cycle is long and the efficiency is low. After a long test, the tester's hand will feel sore and swollen

In addition, manual testing and reading, the test error is large

[0009] In addition, the metal post needs to pass through the metal cover smoothly, so the inner hole of the metal cover needs to be larger than the outer diameter of the metal post. However, when the metal cover passes through the metal post, there is a gap between the inner hole of the metal cover and the metal post. It often happens that direct contact is not possible, that is, poor contact, that is, it is easy to form a non-closed magnetic path, resulting in unstable or inaccurate final inductance readings, that is, the occurrence of misjudgment

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