High-necking end cap and machining die thereof

Abstract

The invention discloses a high-necking end cap and a machining die thereof. The high-necking end cap is provided with a first necking, a second necking and a through hole. The machining die of the high-necking end cap is provided with an upper die holder, an upper die plate, an upper pad, a stop plate, springs, a piercing punch, an upper die drawing punch, a stripper plate, a lower die plate, a lower clamping plate, a lower pad, a lower die holder, a lower table, lower die UV(ultraviolet) adhesives and a lower die drawing punch. The necking quantity of the high-necking end cap is large, and the necking diameter can be larger than the necking quantity. The machining die can be used for completing necking at one step, and the situation of completing necking by multiple steps in the prior art is changed. Spring stress is replaced by elastic UV adhesives on the lower die of the machining die, stress in machining of the high-necking end cap is controlled precisely, the necking size is controlled accurately, excessive machining is avoided, defect of cracking is eliminated, quality of products is stable, production efficiency is high and production cost is low.

Description

technical field [0001] The invention relates to the field of mechanical parts and molds, in particular to a metal high-neck end cap and a processing mold thereof. Background technique [0002] High-shrink end cap parts are often used in many industrial equipment, but the traditional high-shrink end cap parts are difficult to shrink, and the processing precision is not good. The traditional processing method makes the high-shrink end cap The necking diameter cannot be greater than the necking height, the size of the high necking cannot be controlled, and cracking is prone to failure. At the same time, multiple processes are required to gradually shrink the neck. The process is complicated, the production efficiency is low, and the production cost is high. Contents of the invention [0003] The first technical problem mainly solved by the present invention is to provide a high-neck end cover to meet the needs of industrial equipment. [0004] The technical solution adopted ...

AI Technical Summary

Problems solved by technology

[0002] High-shrink end cap parts are often used in many industrial equipment, but the traditional high-shrink end cap parts are difficult to shrink, and the processing precision is not good. The traditional processing method makes the high-shrink end cap The necking diameter cannot be greater than the necking height, the size of the high necking cannot be controlled, and it is prone to poor tearing. At the same time, multiple processes are required to gradually shrink the neck. The process is complicated, the production efficiency is low, and the production cost is high.

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