Processing die assembly of vehicle door inner plate

Abstract

The invention discloses a processing die assembly of a vehicle door inner plate. The processing die assembly comprises a drawing die and a shaping die, wherein the drawing die comprises a drawing concave die, the shaping die comprises an upper die holder, a lower die holder, a material pressing core, a convex die, a trimming embedding block and a circumferential shaping embedding block, the convex die is arranged on the lower die holder, the part, corresponding to the circumference of the vehicle door inner plate, of the drawing concave die is provided with a drawing plane, the circumferential shaping embedding block is used for processing the circumference, the material pressing core comprises an inner material pressing core and an outer material pressing core, the inner material pressing core, the circumferential shaping embedding block, the outer material pressing core and the trimming embedding block can mutually act with the convex die along the movement direction of the upper die holder, the inner material pressing core and the outer material pressing core are respectively positioned at the two sides of the circumferential shaping embedding block, and the trimming embedding block is positioned in the inner side of the inner material pressing core. The processing die assembly has the advantages that the shaping effect of a middle area of the vehicle door inner plate is guaranteed, and the shaping effect of the edge of the vehicle door inner plate is also guaranteed.

Description

technical field [0001] The invention relates to the technical field of processing an inner panel of a vehicle door, in particular to a processing mold assembly for an inner panel of a vehicle door. Background technique [0002] The inner panel of the car door is usually formed by cold stamping, and the drawing process is a more important process in the stamping process of the inner panel of the door. Compressing the circle of the billet before forming also serves to control the speed of the sheet metal flow during the forming process. When the drawbead is increased, the degree of compaction of the billet circumference increases, and on the premise of ensuring the thinning rate of the product, the billet inside the drawbead can be fully formed and the rigidity of the product can be improved. [0003] However, the shape of the edge of the inner panel of the car door is usually relatively complicated, and the height difference is large. During the drawing forming process, the ...

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Problems solved by technology

[0003] However, the shape of the edge of the inner panel of the car door is usually relatively complicated, and the height difference is large. During the drawing forming process, the shape of the product itself will also play a certain role in the drawbead. flow

If the drawbead is increased, the formability of the middle area of ​​the product will be better, but the edge sidewall will be cracked; if the drawbead is reduced, the edge sidewall can achieve better forming effect, but the middle area will be formed insufficient

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