What are the key points of progressive die design?

The main points of the design of progressive die: 　　1. The fillet radius of the concave die of the progressive die 　　The fillet radius of the concave die of the progressive die must be in all directions. Otherwise, when bending, the blank will slide and the product will be offset, which will affect the accuracy and size. When designing the progressive die, the radius of the bending fillet should be selected appropriately, not too large or too small, if it is round The size of the corner radius, in order to cause partial deformation or thinning of the product, and affect the quality and surface roughness of the product. 2. To prevent the deviation of the blank during the bending process. When designing the mold, in order to prevent the deviation of the blank during the bending process, the following precautions should be taken in the area: the mold should be equipped with an elastic pressure device, and the part should be recorded before the bending of the leather. In a state of elastic compression, and then bend. 3. To prevent deformation during the bending process. When designing multi-angle progressive molds, strive to ensure that multi-angle and multi-angle bending are not performed at the same time. When the bottom dead center of the mold is bent, it should be designed to have the effect of correcting the bending as much as possible, and the mold structure design should be adequate Taking into account the elimination of rebound phenomenon. When designing the positioning device, the necessary measures should be taken as far as possible to make the workpiece hold the blank as much as possible during the bending process.