汽车前车架的镶块式拉深成形模具设计

摘要

通过分析汽车前车架零件成形的工艺特点,确定了冲压方案为:落料冲孔→预拉深成形→拉深成形→翻边切边→冲小孔→冲侧孔.介绍了镶块式拉深成形模具结构设计、冲压设备和模具材料的选择以及模具的工作原理.经生产实践证明,产品的不良率由20% 降低至0.3%,提高了产品的质量和生产效率,降低了生产成本.%By analyzing the forming process of front frame of automobile,the stamping pro-gram was determined:blanking and punching,pre-drawing forming,drawing forming, flanging and trimming,punching pinholes,and punching side hole.The die design of draw-ing forming on insert type,the selection of stamping equipment,die material and the work-ing principle were introduced.The practice shows that the defective rate of the product is reduced from 20% to 0.3% which improves the quality of the product and the production efficiency and reduces the production cost.