Barrel-shaped part progressive die

Abstract

The invention discloses a barrel-shaped part progressive die which comprises an upper template and a lower template, wherein a cavity blanking die, a strip cutting die and a forming die are arranged between the upper and lower templates in sequence; the strip cutting die comprises a cutting die upper backing plate, a cutting die upper male die, a cutting die female die and a cutting die lower discharging plate; the cutting die upper backing plate is arranged at the bottom of the upper template; the cutting die upper male die is arranged at the bottom of the cutting die upper backing plate; the cutting die female die is matched with the cutting die upper male die; the cutting die lower discharging plate is arranged on the cutting die female die; a return spring is arranged between the bottom of the cutting die lower discharging plate and the lower template. According to the barrel-shaped part progressive die, the process members are cut apart after the shape punching is finished to form independent process members, force relation is not caused among the process members of each process and the horizontal consistency of the strips in the stretching process and the correctness of the process steps are ensured.

Description

technical field [0001] The invention relates to a continuous die, in particular to a continuous die for processing barrel-shaped parts. Background technique [0002] The barrel-shaped continuous die refers to the cold stamping die that uses strip-shaped stamping raw materials in one stamping stroke, and uses several different stations on a pair of molds to complete multiple stamping and stretching processes at the same time. Stretching is completed once, and the material belt moves once at a fixed distance until the barrel-shaped product is completed. [0003] At present, for the common barrel-shaped parts, in the design process of the continuous die, since the drawing process is multi-step, in order to ensure the level of the material, the upward drawing is usually used. During the upward drawing process, the process parts The molding force should be provided by the unloading plate of the mold (the spring of the upper mold). In the process of upward forming, since the for...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a continuous mold for barrel-shaped parts, which has the characteristics of ensuring good horizontal consistency of the strip during the stretching process and saving mold costs, so as to solve the above-mentioned problems in the continuous mold for barrel-shaped parts in the prior art. question

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