Electromagnetic forming coil structure and manufacturing method thereof

Abstract

The invention relates to an electromagnetic forming coil structure and a manufacturing method thereof. The structure comprises a cylindrical coil framework, a copper core which is arranged in the middle of the coil framework, a lower lead-out guide wire which is horizontally arranged on the lower surface of the copper core and a disc-shaped coil which sleeves the copper core, wherein a counter bore for placing the copper core is formed in the middle portion of the bottom surface of the coil framework, a lower through slot for placing the lower lead-out guide wire is formed in the side wall of the counter bore, and an upper through slot is formed in the side wall of the coil framework; a bolt for fixing the lower lead-out guide wire is in screw joint to the middle portion of the bottom surface of the copper core; the output end of the coil is connected to an upper lead-out guide wire which is parallel to the lower lead-out guide wire, and the upper lead-out guide wire penetrates through the upper through slot and extends outward; and insulating resin is separately paved on the upper surface of the coil and the lower surface of the coil framework, and a layer of artificial fiber is embedded into the middle of the insulating resin. The structure provided by the invention is reasonable in structural design, the insulating property and mechanical strength of the whole electromagnetic forming coil can be obviously improved, and the service life of the whole electromagnetic forming coil can be obviously prolonged.

Description

Technical field: [0001] The invention relates to an electromagnetic forming coil structure and a manufacturing method thereof. Background technique: [0002] Electromagnetic forming is a forming process that converts electric field energy into magnetic field energy and acts on the metal blank to cause the blank to undergo plastic deformation; the electromagnetic forming process is suitable for pipe bulging, necking, punching, flanging, cutting, and riveting. , Plate punching, embossing or embossing, forming, assembly of assembly parts and powder compaction, etc.; compared with traditional metal forming process, electromagnetic forming significantly reduces the springback and wrinkles of the workpiece, and improves the Accuracy and short processing cycle, easy to achieve energy control and production automation, mechanization, flexible processing technology, the same induction coil can be processed in various ways, in addition, electromagnetic forming can also improve the forming ...

AI Technical Summary

Problems solved by technology

The main disadvantages of the electromagnetic forming coil are: the shell and the support plate are separated and connected by insulating resin, but the strength of the insulating resin is not high, which affects the overall strength of the coil; the core tube and the copper strip, the copper strip and the countersunk nut When using welding connection, the resistance of the welding joint is large and the heat is large when passing a large current, which affects the insulation and life of the coil; the copper tape insulation adopts thicker glass fiber cloth, which reduces the winding density and number of turns of the coil

The main disadvantages of the electromagnetic forming coil are: the housing and the support plate are also connected by insulating resin, and its strength is not high, so the overall structural strength of the coil is affected; the electrical insulation performance of the electromagnetic forming coil is not good

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