Lifting lug reinforcing board blanking mechanism

Abstract

The invention discloses a lifting lug reinforcing board blanking mechanism. The lifting lug reinforcing board blanking mechanism comprises an upper die base and a lower die base which is connected with the upper die base through a locating column, wherein a punching die is arranged inside the upper die base, two rubber blocks are installed on a lower die fixing board, and each rubber block is provided with an annular leveling board. The lifting lug reinforcing board blanking mechanism further comprises a blanking hole penetrating through the lower die base and the lower die fixing board. When the lifting lug reinforcing board blanking mechanism works, the annular leveling boards are arranged on the rubber blocks, the horizontal height of each annular leveling board is greater than that of the lower die fixing board, the rubber blocks are compressed to deform when a material board moves downwards along with the punching die, and the annular leveling boards also move downwards along with the punching die. When the material board is blanked by the punching die, the annular leveling boards are matched with the lower die fixing board, roll rims or protrusions which are possibly generated on the edge of the residual material are removed, blanking quality for the next time of the material board is guaranteed, waste of the materials is reduced, and production cost is reduced.

Description

technical field [0001] The invention relates to the field of stamping dies, in particular to a punching mechanism for a lifting lug reinforcement plate. 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. The materials of sheet metal parts include: ordinary cold-rolled plate, SPCC refers to the continuous rolling of steel ingots by cold rolling mills into steel coils or sheets of required thickness, the surface of SPCC has no protection, and it is easily oxidized when exposed to air. Especially in a humid environment, the oxidation speed is accelerated, and dark red rust appears. The surface should be sprayed with paint, electroplated or other protections when in use; Afte...

AI Technical Summary

Problems solved by technology

[0003] For example, in the stamping process of the lug reinforcement plate, when the stamping die punches the material plate, the blanked sheet metal parts will be removed, and obvious curling or protrusions will appear on the edge of the remaining material plate, making the material The next punching of the plate will lead to a decrease in the quality of the sheet metal part, and will increase the raw material consumption of the material plate and increase the production cost; however, when the stamping die is in contact with the material plate, the buffer structure usually installed on the lower die base will be deformed , the inner wall of the lower die base and the lower die base interfere with each other. When the amount of grinding of the upper and lower die bases is small, the buffer structure cannot achieve the predetermined buffer effect, which eventually leads to the failure of the stamping process.

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