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挡板件多工位级进模设计
英文标题:Design on multi-station progressive die for stop plate part
作者:郑晖 栾景旺 孙凌崴 
单位:沈阳航空航天大学 
关键词:挡板件 多工位 级进模 三维建模 排样 
分类号:TG385.2
出版年,卷(期):页码:2021,46(5):169-173
摘要:

 在分析了挡板件数量、结构和工艺特点的基础上,确定了制件采用级进模进行生产。设计了级进模排样图,包含冲裁、弯曲、拉深等9个工步,并对冲裁、拉深和弯曲工艺性能进行了阐述。同时,介绍了多工位级进模的模具结构设计要点:工步设计是否合理、制件的定位是否准确、带料的托料送进是否平稳,以及导向的设计是否满足精度要求。本套模具采用导料板进行导料,侧刃用于粗定位,导正销对每一步进行精定位,以保证定位的精度;选用弹压卸料板进行卸料与压料,并设置小导柱、小导套对其进行导向,提高导向精度;设置限位柱,防止卸料板运行过量,对模具造成损坏;弯曲工步设计为向下弯曲,在条料两侧安排浮顶器确保条料平稳送进。最后,利用落料的方式成形零件。以CATIA为计算机辅助设计工具,设计出挡板级进模所需的模具零件,并对模具零部件进行装配,得到模具装配体的三维数模。

 

 Based on the analysis of the number, structure and process characteristic of stop plate part, it was determined that the parts were produced by a progressive die. The layout drawing of progressive die was designed which indues nine steps such as blanking, bending and deep drawing etc.,and the technological properties of blanking, deep drawing and bending were described. At the same time, the key points of design for the multi-station progressive die structure were introduced such as the reasonable step design, the accurate location of part, the stable feeding for strip, and the guide design that met the accuracy requirements. Furthermore, the guide plate was adopted to guide the strip, the side edge was used for rough positioning, and the guide pin was used for precise positioning to ensure the accuracy of positioning, the spring stripper plate with the small guide pin and small guide sleeve was selected to press and remove the strip to improve guiding accuracy, the limit column was set to prevent the stripper plate from moving excessive distance and causing damage to the die, the bending process was designed as bending downward, the ejectors were arranged on both sides of the strip to ensure that the strip was fed smoothly, and the formed parts were obtained by blanking. Finally, the die components required for the progressive die of stop plate were designed by computer-aided design tool CATIA and assembled to obtain the three-dimensional digital modeling of die assembly. 

 
基金项目:
国防重点实验室开放课题(SHSYS202008)
作者简介:
郑晖(1976-),女,博士,副教授 E-mail:912108730@qq.com
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