某柔性接头模具设计与成形分析  

Forming analysis of flexible joint and the die design

作　　者：陈杨 CHEN Yang(AVIC Jincheng Nanjing Engineering Institute of Aircraft System,Aviation Industry Corpora-tion of China Ltd.,Nanjing 211111,China)

机构地区：[1]中国航空工业集团公司金城南京机电液压工程研究中心,江苏南京211111

出　　处：《模具工业》2025年第2期25-29,共5页Die & Mould Industry

摘　　要：某柔性接头形状规则但直接成形难度大,采用先拉深钣金毛坯再旋压的工艺,拉深计算得出需2次拉深,确定各次拉深的凹模圆角、直径和高度等参数,并设计了多瓣可拆卸榫卯结构模芯,试加工时第2次拉深出现拉裂,增加第1次拉深后热处理退火工序解决拉裂现象;旋压时出现壁厚不一致和不贴合现象,优化旋压方式,重新设计滚轮,增加退火工序并调整旋压次数后得以改善。The shape of flexible joint is regular but difficult to form directly,the process of drawing sheet metal blanks first and then spinning was adopted.The drawing calculation results showed that the joint forming need twice drawing,and the parameters such as filleted corners,diameter and height of the concave die for each drawing process were determined,and a multi-flap detach-able mortise and tenon die core was designed.While cracking occurred in the second drawing pro-cess during the trial processing,and the annealing process after the first drawing process was add-ed to solve the problem.The inconsistent of wall thickness and non-fit phenomenon occurred dur-ing spinning process was improved by optimizing the spinning way,redesigning the roller,increas-ing the annealing process and adjusting the spinning times.

关 键 词：柔性接头 模具设计 拉深 旋压 工艺优化 

分 类 号：TG386.1[金属学及工艺—金属压力加工]