高强钢板零件落料冲孔连续模具设计  

Design of blanking and piercing progressive die for high strength steel parts

作　　者：左治江[1] 文亮[1] 李智勤 陈栋[1] 

机构地区：[1]江汉大学机电与建筑工程学院,湖北武汉430056 [2]武汉惠恒实业有限公司,湖北武汉430056

出　　处：《锻压技术》2015年第3期84-88,共5页Forging & Stamping Technology

基　　金：武汉市教育局市属高校产学研项目2012C05;武汉经济技术开发区科技创新基金的支持

摘　　要：汽车后拖钩支架零件的材料为高强钢板DP600,是汽车轻量化过程中用量较多的一种材料。通过分析其零件特征,制定了连续模落料冲孔折弯成形翻边整形冲孔的冲压工艺。针对其中的连续模落料冲孔工序,设计了复合排样,使其材料利用率达到71.56%;并在连续模具中设计两个工位分别对零件进行冲孔落料;计算冲裁力、设计模具刃口尺寸及模架结构;选择机械压力机STD-300为冲压设备;设计了冲孔落料连续模的卸料装置、浮料装置和支撑结构,以便落料件和废料分别从模具两侧排出。在模具制造中,对主要工作部件采用镶块结构,便于模具的调试。试验结果表明,使用该模具生产的零件尺寸精度符合图纸要求,生产节拍大于30次·min-1。The material of automobile rear towing hook bracket is DP600, which is a widely used material in automobile lightweight process. The stamping process of progressive die blanking and piercing → bending → forming and flanging → shaping and piercing was designed through the analysis of the parts features. As for the blanking and piercing process, the composite layout was designed, in which the material usage rate was 71.56%, and the steel plate was respectively blanked by designing two stations in progressive die. After calculation of the cutting force, the design of the die dimension and tolerance and the selection of mould frame, the stamping machine STD - 300 was chosen. For blanking and piercing progressive die, the unloading device, the floating device and support structure were designed, which could separate the blanking parts and waste materials from two sides of the die. During the process of the manufacture, the insert block structure was used for the main work parts, as for the convenience of the die adjusting. The whole dimension tolerance of the parts produced by this die can meet the technology requirement, and the produce frequency is larger than 30 times per minute.

关 键 词：高强钢板DP600 落料冲孔 连续模 

分 类 号：TG385[金属学及工艺—金属压力加工]