Mold mold, punch protection method, you really will?

2023-09-01 11:46:04

The die pad is below the product to be formed to prevent movement, usually the die base. The punch is connected to the punch to reduce the motion component and keep the direction of the hitting force consistent with the center line of the die. Both the die and the punch are used for forming, and it is not excluded that there is a punch on the lower die. Punch and die movements There are two main points. The hole is a female mold and the shape is a male mold. The simplest part is the gasket, which is stamped out in one go. Correspondingly, of course, there should be a punch and a die. Punching punch, die drop shape. If it is a small diameter punching, the guiding accuracy is not enough, it is difficult to produce. Here, we will discuss some ways to protect men and women from death. Use the discharge plate to guide the front end of the punch to prevent damage to the punch. For P and B in the punch size, B is less than or equal to 10p as a design criterion. In the small hole punching machine, because the size of B is cut short, the punching machine is difficult to guide, so the step punching machine shown in Figure 2 below is used here, and the size of D on P is less than or equal to P plus 2t. The main thing is to prevent the punch from deforming inside the hole when it is pulled out of the material. Setting condition for guide length of punch front end: guide length ≥ punch diameter (unilateral clearance between punch and discharge plate hole> 0.003) The principle of doing this means that the minimum gap 0.003 that does not damage the oil film, but polishing is also 1 good method. The focus of the die design is to prevent the accumulation of blanking waste in the die hole. The difficulty is that the blanking force is too large and the blanking force is too large, so how to solve it? Here to minimize A (knife edge length), it is best to one after another single blanking as the design center. The blanking hole (d) here should be equal to (p) to prevent excessive size differences. If (d) is shortened, (l) should also be shortened to prevent clogging. In order to reduce the processing force of stamping, it should be matched with the gap> regular gap.