Hot stamping mould for nut

Abstract

The invention discloses a hot stamping mould for a nut. The hot stamping mould comprises an upper mould frame, an upper mould base plate, a fixing plate, an elastomer and a stripper plate which are sequentially fixedly connected from top to bottom, a lower mould frame, a lower mould base plate, a lower mould fixing plate, a base plate and a lower female mould plate which are sequentially fixedly connected from bottom to top, and a mould shank, wherein the lower end of the mould shank is fixed on the upper mould frame; a hollow upper male mould is fixed in a stepped hole which is formed by the stripper plate, the elastomer and the fixing plate; a mould core and a lower moving mould matched in a sliding mode are arranged in a stepped hole which is formed by the lower female mould plate and the base plate; the cross sections of the upper male mould, the hole of the lower female mould plate and the upper part of the lower moving mould are hexagons; and a jacking mechanism is arranged at the bottom of the lower moving mould. Due to the hot stamping mould for the nut, the production process of the nut is simple, time consumption is low, materials are saved, and the strength of the nut can be increased.

Description

technical field [0001] The invention relates to a hot stamping die, more specifically to a hot stamping die for producing nut semi-finished products. Background technique [0002] Nuts are widely used in industry, and hexagonal nuts are classified into hexagonal thick nuts and hexagonal thin nuts according to their thickness. Generally, the process of producing hexagonal nuts is divided into: 1. Use the nut cold pier machine to process the raw materials into semi-finished products without internal threads through cutting-pressure ball-pressing hexagonal-punching; 2. Continuously tapping the semi-finished products by tapping machine Internal thread processing, heat treatment and surface treatment to form a finished product. The shortcomings of the existing technology for producing nut semi-finished products are: when producing thick nuts, there is a high requirement for the tonnage of the cold pier machine, the above-mentioned process is more complicated, time-consuming, and...

AI Technical Summary

Problems solved by technology

The shortcomings of the existing technology for producing nut semi-finished products are: when producing thick nuts, there is a high requirement for the tonnage of the cold pier machine, the above-mentioned process is more complicated, time-consuming, and the material waste is large during punching. There is no recrystallization in the medium, and it is easy to appear that the strength of the thick nut is not enough to affect the service life. It must be heat treated to ensure the strength of the thick nut.

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