杠杆零件(为成型前坯料)若用一般的冲模加工成型要符合设计要求是困难的。因为:1.零件R成型经一般结构的模具冲压弯曲,模口部位磨损剧烈,零件和模具本身都易拉毛;2.零件圆弧中心由于拉延会使工件R部位延伸或R面与平面垂直交点凸起,不能保证零件的尺寸、形状和位置的正确。我们设计了一种结构特殊而又简单的弯曲成型模,成功地解决了 Lever parts (for the preform molding) If the general use of die forming to meet the design requirements is difficult. Because: 1. R part of the general structure of the mold stamping bending, die wear dramatic parts, parts and the mold itself is easy to razor; 2. part of the arc center as a result of drawing will extend the workpiece R or R plane perpendicular to the plane Raised point, can not guarantee the size of the parts, shape and location of the correct. We designed a specially shaped and simple bending mold, successfully solved