The embodiment of the calculation principle of the edge size of the convex and concave die in the stamping die

What is the calculation principle of the edge size of the convex and concave die in the stamping die? Let's take a look below; 1. The blanking size of the stamping die depends on the size of the die, and the punching size depends on the size of the punch; when designing the blanking die, take the die as the benchmark, and take the gap on the punch and punch out The gap is obtained by reducing the size of the edge of the punch; when designing the punching die, the punch is used as the benchmark, the gap is taken on the die, and the punching gap is obtained by increasing the size of the edge of the die; 2. According to According to the law of wear, when designing the blanking die, the nominal size of the die should be the smaller size within the tolerance of the part size; when designing the punching die, the nominal size of the punch should be the larger size within the tolerance of the part hole size ; In this way, when the convex and concave molds are worn to a certain extent, the qualified stamping parts can still be punched out. The wear allowance is represented by xΔ, where Δ is the tolerance value of the workpiece, and x is called the wear coefficient, which is generally determined by the accuracy of the workpiece The requirements and production batches are determined, and can also be determined according to the following principles: ①When the tolerance level of the blanking parts is higher than IT10 or the production batch is larger, take xu003d1.0. ②When the tolerance level of the blanking parts is IT11～IT13 or medium production batch, take xu003d0.75. ③When the tolerance level of blanking parts is lower than IT14 or small batch production, take xu003d0.5. Recommended article: Which aspects depend on the margin value of metal stamping parts? Previous post: In the processing of stamping parts, what circumstances should increase or decrease the blanking gap value