Magnetic expansion coil winding power mechanism

Abstract

The invention relates to the technical field of transformers, in particular to a magnetic expansion coil winding power mechanism which comprises a support, an electromagnet, an expansion shaft and a rotating assembly. The expansion shaft is provided with a first expansion plate and a second expansion plate; and the expansion shaft is movably provided with an expansion block used for driving the first expansion plate and the second expansion plate to move. The expansion block moves along the axial direction of the expansion shaft; the end, close to the electromagnet, of the expansion block extends out of the expansion shaft and then is connected with a permanent magnet. The coil framework is fixed through the expansion shaft, fixing is stable and reliable, and the situation that the productquality is reduced due to the fact that the framework loosens and shifts in the coil winding process is prevented; the expansion torque is transmitted in a non-contact mode through an electromagneticfield, the service life is greatly prolonged, and the stability is greatly improved; and the magnetic field intensity output by the electromagnet can be adjusted by adjusting the magnitude of the current, so that the expansion force is adjusted to meet the fastening force requirements during winding of coils with different wire diameters, and the applicability to production of different productsis improved.

Description

Background technique [0001] The patent No. 201811178863.2 proposes a transformer coil winding device with a pneumatic expansion and clamping mechanism, which aims to solve the current problem of loosening and shifting of the skeleton due to the lack of effective support of the skeleton during the current transformer coil winding process. At the same time, it is inconvenient to load and unload the coil frame. The fixed end of the frame directly adopts the expansion and tightening drive form of the piston cylinder, the structure is complex, and there are many parts, resulting in a relatively large volume, which cannot meet the needs of small coil production. Because it uses a pneumatic method to expand and tighten the coil frame, it is necessary to use a rotary air supply device to continuously supply air to the high-speed rotating frame expansion mechanism. Due to the relatively large volume of the rotary air supply device, the integration of the entire device is very low, maki...

AI Technical Summary

Problems solved by technology

[0001] The patent No. 201811178863.2 proposes a transformer coil winding device with a pneumatic expansion and clamping mechanism, which aims to solve the current problem of loosening and shifting of the skeleton due to the lack of effective support of the skeleton during the current transformer coil winding process. At the same time, the problem of inconvenient loading and unloading of the coil skeleton

The fixed end of the frame directly adopts the expansion and tightening drive form of the piston cylinder, the structure is complex, and there are many parts, resulting in a relatively large volume, which cannot meet the needs of small coil production.

Because it uses a pneumatic method to expand and tighten the coil frame, it is necessary to use a rotary air supply device to continuously supply air to the high-speed rotating frame expansion mechanism. Due to the relatively large volume of the rotary air supply device, the integration of the entire device is very low, making it difficult Miniaturize

At the same time, the service life of the rotary air supply device is low. Once the sealing ring wears out and air leakage occurs, the expansion force of the entire expansion mechanism will drop sharply. At least, the fixing effect of the skeleton is not good, resulting in scrapping of the product, and at worst, the coil skeleton Loosened and slipped out, causing a safety accident

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