Sheet metal stamping device

Abstract

The invention discloses a sheet metal part stamping device which comprises an upper die base and a lower die base. The upper die base is connected with the lower die base through a supporting rod, the lower die base is arranged on a working table of a stamping machine, a stamping head is arranged in the upper die base, a rubber block is arranged between an annular plate and a lower die fixing plate, and is arranged inside an annular ring formed by a plurality of screw rods, a sunken portion is formed in the middle of the rubber block, and is concentric with an inner hole of the annular plate, an upper surface of a stress plate and the upper surface of the annular plate are arranged on the same horizontal plane, an adjusting cylinder penetrates through the upper die base and is arranged in the through hole, the stamping head is arranged in the adjusting cylinder in a sliding mode, a fixing ring is arranged on the inner wall of the adjusting cylinder, a plurality of trapezoid-shaped grooves are formed in the fixing ring, the trapezoid-shaped grooves are radiated in the radial direction of the fixing ring, a baffle block is arranged on the trapezoid-shaped grooves, protrusions are connected with the lower portion of the baffle block, the protrusions are arranged in the trapezoid-shaped grooves in a sliding mode, the baffle block is connected with the wall of the adjusting cylinder through a torsion spring, and in the working process, the torsion spring is in the compression state.

Description

technical field [0001] The invention relates to the field of stamping headgear, in particular to a sheet metal stamping device. Background technique [0002] Sheet metal parts have the characteristics of light weight, high strength, electrical conductivity (can be used for electromagnetic shielding), low cost, and good performance in mass production. At present, they are widely used in the fields of electronic appliances, communications, automobile industry, medical equipment, etc. For example, in computer cases, mobile phones, and MP3 players, sheet metal is an essential component. The design of sheet metal parts has become a very important part of the product development process. There are many sheet metal materials suitable for stamping processing. Sheet metal materials widely used in the electronic and electrical industries include: ordinary cold-rolled plates, SPCC refers to steel ingots After being continuously rolled by a cold rolling mill into steel coils or sheets ...

AI Technical Summary

Problems solved by technology

[0003] In the stamping process of sheet metal parts, when the stamping head punches the sheet metal material plate, the blanked sheet metal part will be removed, and obvious curling or protrusions will appear on the edge of the remaining material plate, making the material plate The quality of the sheet metal part will decrease during the next punching, and it will increase the raw material consumption of the sheet metal material plate and increase the production cost; however, when the punching head is in contact with the sheet metal material plate, the buffer structure usually installed on the lower die base It will be deformed and interfere with the inner wall of the lower mold base. When the amount of grinding of the upper and lower mold bases is small, (the amount of grinding is the amount of the convex and concave molds reserved during the manufacturing process. The amount of wear means that the cutting edge of the punch and die will wear out during the use of the mold. The punch and die that do not have a grinding amount will be scrapped directly, and if there is any, it can be repaired. smaller), the cushioning structure cannot achieve the predetermined cushioning effect, and eventually the stamping process cannot be carried out normally

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