Discharge coil for electromagnetic riveter and production method thereof

Abstract

The invention discloses a discharge coil for an electromagnetic riveter, wherein the center of the coil is a core tube, an initial end of a copper strip is welded with the core tube, the core tube is surrounded by layers of the copper strip wrapped by glass fabric, the continuous copper strip forms a cake-shaped disc in a shell, a round insulating board is arranged on the cake-shaped disc, the center of the insulating board is a through hole matched with the upper end of the core tube, a supporting plate is arranged on the insulating board, an insulating layer is arranged on the supporting plate, a connecting line is fixedly connected with a countersunk nut on the shell, and the supporting plate is supported against two countersunk square nuts. The invention also discloses a method for producing the discharge coil. The countersunk nuts are adopted, so the external dimension of the coil is reduced and the coil can be conveniently arranged into a small-scale electromagnetic riveter; a radiating hole at the center of the coil improves heat dissipation conditions of the coil and reduces the temperature rise speed of the coil; the whole coil is packaged in the shell so as to ensure that the coil can bear larger impact load; and the design of a partition improves the insulating property of the coil.

Description

technical field [0001] The invention relates to a discharge coil, in particular to a discharge coil for an electromagnetic riveting gun, and also to a manufacturing method of the discharge coil. Background technique [0002] Electromagnetic riveting technology has been widely used in the aerospace field. As the core component of electromagnetic riveting equipment, the discharge coil has an important impact on the performance of electromagnetic riveting equipment. Electromagnetic riveting equipment generally has two coils. The primary coil is generally a wound multi-turn pie-shaped coil, also known as a discharge coil. The secondary coil is generally an aluminum or copper plate with a certain thickness. The discharge coil is a key component of electromagnetic riveting equipment, and its working conditions are very harsh. When riveting, the discharge coil needs to bear the impact current of tens of thousands of amps, and bear the effect of large impact load, and the voltage b...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the disadvantages of large coil dimensions and complicated manufacturing procedures in the prior art, the present invention provides a discharge coil for an electromagnetic riveting gun, which uses countersunk nuts to reduce the coil dimensions

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