三维拉弯柔性成形装备中单元体快速调形技术  

Rapid adjusting of fundamental units in process of flexible 3D stretch-bending

作　　者：高嵩[1,2] 梁继才[1,2] 陈广义[1,2] 魏志勇[1,2] 滕菲[1,2] 

机构地区：[1]大连理工大学工业装备结构分析国家重点实验室,辽宁大连116024 [2]大连理工大学汽车工程学院,辽宁大连116024

出　　处：《吉林大学学报（工学版）》2014年第6期1723-1728,共6页Journal of Jilin University:Engineering and Technology Edition

基　　金：国家工信部技改专项项目(吉工信投资[2011]350)

摘　　要：将多点成形技术思想引入到型材拉弯工艺中,形成三维拉弯柔性成形技术。为了精确地实现型材三维成形,对型材三维拉弯过程中多点模具的自由度进行了分析,设计了可实现4自由度的单元体结构。给出了单元体调形参数的具体计算方法,并提出一种串并结合的单元体调形控制方法。建立了单元体水平和垂直两个方向调形的数学模型。以高铁动车头骨架结构件为例,进行了三维拉弯试验。结果表明:三维拉弯柔性成形装备达到了实际应用的要求。自动化调形技术较人工调形技术生产效率提高60%以上,并降低了劳动强度。A flexible 3Dstretch-bending process was developed based on the idea of multi-point forming technique.To realize precise 3Dshape of the profile,the freedom of single multi-point die in the process of 3Dstretch-bending was analyzed first,and the structure of fundamental unit with 4-DOF was designed.Then,the calculation method of unit adjusting parameters was presented,and a combination of serial and parallel adjustment control method was proposed.In addition,the mathematical model of the unit was set up.With the structural component of high-speed trains as an example,3Dstretch-bending test was carried out.The experimental results show that the flexible 3D stretch-bending equipment meets the practical requirements.Compared with manual adjustment,automatic unit adjustment can improve the production efficiency by 60%,as well as reduce labor intensity.

关 键 词：金属材料 金属塑性成形 三维拉弯 单元体 调形 柔性成形 

分 类 号：TG335.9[金属学及工艺—金属压力加工]