Pen type ignition coil iron core and buckling-riveting device thereof

Abstract

The invention discloses a pen type ignition coil iron core and a buckling-riveting device thereof. In the iron core, multiple silicon steel sheets are connected to form a pen type structure through a buckling-riveting structure; each silicon steel sheet is of strip shape; two ends of the silicon steel sheet are provided with a groove respectively; the width of the iron core is not uniform that the iron core becomes wider and then becomes narrower; the surfaces on the sides of the silicon steel sheets in the width direction are symmetric arc surfaces; the buckling-riveting device comprises a blanking convex mould and a blanking concave mould which are cooperated with each other and are used for blanking and buckling-riveting; a blanking ejector rod is arranged in the blanking convex mould, and a bulking-riveting punch is arranged at the end of the blanking ejector rod; the blanking concave die is arranged in a concave template; a tightening ring is arranged at the lower end of the blanking concave mould and the concave template; a silicon steel strip to be punched is arranged between the blanking convex mould and the blanking concave mould; and the blanking concave mould and the tightening ring are used for containing the silicon steel sheets after the blanking. The pen type ignition coil iron core has a simple structure, the product quality is stable, the production efficiency is high, and the entire production process can be automated.

Description

technical field [0001] The invention relates to an automobile ignition coil, in particular to a pen type ignition coil iron core and a riveting device thereof. Background technique [0002] At present, most high-end car engine ignition systems use pen-type ignition coils. This type of ignition coil is called a pen-type ignition coil because one end is larger and the other end is longer, resembling a pen. This kind of pen-type ignition coil not only saves the energy loss between the distributor head and the side electrode and the energy loss of the high-voltage line, but also avoids the disadvantage of multi-head ignition coils igniting two cylinders at the same time, so the ignition is more reliable. It also has the advantage of reducing electromagnetic interference since there is no gap between the distributor and the electrodes next to the distributor, and no high-voltage wires are required. This is a more avant-garde ignition coil at present, representing the latest tech...

AI Technical Summary

Problems solved by technology

The whole process takes a lot of manpower, and the production efficiency is low; and because of manual control, the quality stability is poor

Using the above method to produce pen-type ignition coil cores, the production capacity is low, the quality is not easy to control, and it is difficult to meet the growing market demand.

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