Forming device for disc-class thin-wall nut

Abstract

The invention discloses a forming device for a disc-class thin-wall nut. The forming device for the disc-class thin-wall nut comprises a machine seat, a lower die, an upper die and a drilling and tapping assembly. The lower die comprises a lower die seat fixed to a machine seat, a blank plate is placed on the upper end surface of the lower die seat, and a drawing through hole extending up and downis formed in the upper end surface of the lower die seat. The upper die comprises an upper die plate located above the lower die seat, a drawing convex die arranged on the upper die plate and a blankholder located below the drawing convex die. The drilling and tapping assembly comprises a tapping drill bit located below the lower die seat. The upper die plate is driven to move downwards, the blank holder and the drawing convex die are moved downwards, the blank holder presses the edge of the blank plate, the drawing convex die penetrates through an inner hole of the blank holder and continues moving to press the to-be-drawn area of the blank plate into the drawing through hole to form a blank barrel, the tapping drill bit is driven to rotate and move upwards to extend into the drawing through hole, thereby drilling through the bottom wall of the blank barrel, and the inner wall of the blank barrel is tapped to form a connecting thread. Machining of the disc-class thin-wall nut is realized, the work procedure period is shortened, and production efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of nut manufacturing, in particular to a forming device for disk-type thin-walled nuts. Background technique [0002] Disc-type thin-walled nuts are a typical type of connecting parts, which are widely used in many industries and have a huge market demand. At present, the forming method of disc-type thin-walled nuts is mainly sheet metal stamping combined with thread processing, that is, after the sheet material is blanked, it is drawn, then punched, and finally threaded. In the forming process, it is often necessary to use multiple stamping dies such as drawing dies and punching dies, and correspondingly, multiple stamping equipment is required; in addition, equipment for thread processing is required, and semi-finished products often need to be processed in each pair of molds and each Continuous transfer between equipment and multiple positioning. Therefore, in the prior art, the forming method of disc t...

AI Technical Summary

Problems solved by technology

Therefore, in the prior art, the forming method of disc-type thin-walled nuts requires a large number of molds and equipment, a long process cycle, and low production efficiency.

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