Stamping die with drawing rib and forming technology of stamping die

Abstract

The invention discloses a stamping die with a drawing rib and a forming technology of the stamping die. The stamping die comprises an upper die base, a lower die base, a blank holder, a female die, a male die, an air ejector rod and the drawing rib, wherein the female die is arranged on the upper die base, the male die is arranged on the lower die base, the air ejector rod is arranged under the blank holder, the drawing rib is a movable drawing rib, the movable drawing rib is arranged in a sliding groove on the blank holder in a sliding manner, the female die is provided with a hole corresponding to the upper end of the movable drawing rib, the lower end of the movable drawing rib is connected with a driving block in the sliding groove, a connecting column is arranged in the blank holder in the sliding manner, the upper end of the connecting column is opposite to the driving block in the sliding groove, and the lower end of the connecting column stretches out of the blank holder. According to the forming technology, the resistance which is generated by the movable drawing rib during a plate forming process is increased from small to big, the phenomena of wrinkling, arc reversing and rebounding of a product can be obviously improved by the movable drawing rib compared with a fixed drawing rib, and the improvement on arc reversing and rebounding phenomena is particularly obvious.

Description

technical field [0001] The invention relates to the technical field of stamping dies, in particular to a stamping die with drawbeads and a forming process thereof. Background technique [0002] With the continuous development of the manufacturing industry, the pursuit of product quality and the saving of manufacturing costs have become two major concerns of enterprises. In the field of stamping and forming of automotive panels, the inflow of stamping materials produced by different product shapes is also different. If it is not treated and controlled, excessive material inflow will cause wrinkling and other phenomena in the stamping plate, thereby destroying the stamping effect and affecting the quality of the vehicle. Especially for automobile side panels, bonnets, top covers and door panels, etc., they are the most important stamping parts among all kinds of automobile outer covering parts, and their quality directly affects the appearance and safety performance of automo...

AI Technical Summary

Problems solved by technology

The fixed drawbead cannot be adjusted and adapted according to the inflow of stamping materials produced by different product shapes, and the fixed drawbead is not convenient to modify the mold, and the damaged drawbead is not easy to repair, resulting in the scrapping of the mold and reducing the use of the mold life, increased mold manufacturing cost

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