Stainless steel precision small hole burr-free punching die and forming method thereof

Abstract

The invention provides a stainless steel precision small hole burr-free punching die, and relates to the technical field of stamping equipment. The stainless steel precision small hole burr-free punching die comprises an upper backing plate, a lower backing plate, an upper template and a lower template, wherein the upper backing plate and the lower backing plate are arranged spaced, the upper template comprises a fixed plate and a movable plate that are arranged spaced, the movable plate is close to and slidably connected to the fixed plate, the side, facing the movable plate, of the fixed plate is sequentially and fixedly provided with a first stage punching needle, a second stage pre-punching needle, a second stage punching needle, a third stage punching needle and a trimming punch in the feeding direction of sheet steel, the first stage punching needle, the second stage pre-punching needle, the second stage punching needle, the third stage punching needle and the trimming punch penetrate through the movable plate and are in sliding connection with the movable plate, the lower template is provided with a first stage groove, a second stage pre-groove, a second stage groove, a third stage groove and a trimming groove corresponding to the first stage punching needle, the second stage pre-punching needle, the second stage punching needle, the third stage punching needle and the trimming punch respectively. The die has the advantages of high production efficiency, high product precision and high economic benefit.

Description

technical field [0001] The invention relates to the technical field of punching equipment, in particular to a stainless steel precision small-hole burr-free punching die and a forming method thereof. Background technique [0002] like Figure 7 As shown, it is a structural diagram of a coffee machine small disc, which includes eight first-level holes arranged around the circumference, a second-level hole located in the center of the first-level hole, and four third-level holes distributed around the outside of the second-level hole hole. The small disc of the coffee machine is used in the coffee machine to control the heating temperature of the coffee machine and the discharge of water vapor flow. When the temperature reaches a certain value, the coffee machine starts to exhaust through the small holes on the steel plate, and the boiling water flows out at the same time. Start making coffee. If the exhaust is not timely, the temperature will be too high, and the boiler ins...

AI Technical Summary

Problems solved by technology

[0005] The first object of the present invention is to provide a stainless steel precision small hole burr-free punching die, which aims to improve the problems of poor precision, difficult quality assurance and high production cost in traditional production methods; the second object of the present invention is to provide a coffee machine The production method of small wafers aims to improve the problems of poor yield, low production efficiency, difficult quality assurance and high production cost of traditional production methods

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