A lower bending die

Abstract

The invention proposes a lower bending mold, the bending male mold has no corner gap, and can avoid stamping on the product, which is convenient for processing and reduces the cost of the mold. The lower bending mold includes an upper mold base, a lower mold base, a bending male mold assembly and a punch assembly, and the bending male mold assembly includes a side bending male mold assembly and a corner bending male mold assembly , the punch assembly includes a side punch assembly and a corner punch assembly; both the side bending male die assembly and the corner bending male die assembly include a slide plate, a bending male die and a wedge, and the slide plate can be moved along the The die base slides horizontally, the bending male die and the wedge are fixed on the slide plate; the lower die base is equipped with elastic parts; the side punch assembly and the corner punch assembly include punches and inserting knives, and the corner punch The lowest point of the insertion position of the component is lower than the lowest point of the insertion position of the side punch assembly. The abdication action of the male bending die of the present invention is driven by the inserting knife of the punch assembly and the slide plate of the male bending die assembly. The male bending die has no corner gap, and has a simple structure and is easy to process.

Description

technical field [0001] The invention relates to a stamping die, in particular to a lower bending die. Background technique [0002] Some vertically bent products have protruding features reserved on the inner surface of their side walls, such as convex bumps protruding toward the inside of the product or inward-folded flanges at the top edge of the product’s side walls. Flanges are usually flattened prior to the vertical bending process. In order to ensure vertical bending, a relief groove should be made on the bending male die to give way to the protruding features of the product. At the same time, when the vertical bending is completed and the material is returned, in order to avoid the relief groove of the bending male die from hindering the protruding features For protruding, the mold should be designed with a structure that drives the bending male mold to give way to the protruding features so that the product can be taken out smoothly. [0003] In the prior art, an i...

AI Technical Summary

Problems solved by technology

In this solution, the product presses the bending male mold slider to move, and it is easy to press the mold on the product, and since the slider must be set to let the protruding feature out of the product, it is necessary to design a gap at the corner of the product so that The slider at the corner can have space to retreat, which makes it difficult to straighten the bending male die, and the bending appearance at the gap is not good, and the product is equipped with oblique sliders and oblique slider grooves around the circle, which is not easy to process

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