航天用一维线性卷筒式伸杆连续拉弯成形设备  

Continuous stretch bending equipment of one-dimensional linear reel-type stretch rod for aerospace

作　　者：李占华 韩静涛[2] 张玉凤 路瑞龙 Li Zhanhua;Han Jingtao;Zhang Yufeng;Lu Ruilong(School of Mechanical Engineering,Shijiazhuang Tiedao University,Shijiazhuang 050043,China;School of Materials Science and Engineering,University of Science and Technology Beijing,Beijing 100083,China)

机构地区：[1]石家庄铁道大学机械工程学院,河北石家庄050043 [2]北京科技大学材料科学与工程学院,北京100083

出　　处：《锻压技术》2022年第10期208-215,共8页Forging & Stamping Technology

基　　金：河北省高等学校科学技术研究项目(QN2019192,QN2021231);河北省自然科学基金面上项目(E2021210116)。

摘　　要：以卷筒式伸杆为研究对象,考虑到由于弹性卷筒的高度非线性结构所导致的成形工艺与设备开发困难的问题,在通过数值模拟的方式分析卷筒式伸杆连续拉弯成形工艺过程的基础上,开展了成形设备功能与结构的研究,解决了连续拉弯成形设备制造中模具结构设计与恒张力控制等难点问题。提出了一种可用于实际生产的无张力辊带材恒张力控制模型,应用测试结果表明,后张力波动幅值小于4%,前张力波动幅值小于3%,简化了设备结构,避免了张力辊对成形精度的影响,实现了稳定控制的效果。完成了卷筒式伸杆连续拉弯成形设备的开发,并利用开发的设备成功研制了长度为6 m的弹性卷筒,制件的直线度偏差小于5 mm,获得了可供飞行应用的弹性卷筒制件。研究内容对提高我国自有弹性卷筒的批量化生产能力具有一定意义。For the reel-type stretch rod,considering the difficulty in developing the forming process and equipment due to the highly nonlinear structure of stacer,based on analyzing the continuous stretch bending process of reel-type stretch rod by numerical simulation,the function and structure of forming equipment were studied,and the difficult problems such as die structure design and constant tension control in the manufacturing of continuous stretch bending equipment were solved.Then,a constant tension control model of steel strip without tension roller was proposed which could be used in actual production.Application test results show that the post tension fluctuation amplitude is less than 4%and the front tension fluctuation amplitude is less than 3%,which simplifies the equipment structure,avoids the influence of tension roller on the forming accuracy,and realizes the effect of stable control.The development of continuous stretch bending equipment for the reel-type stretch rod is completed,and the stacer with the length of 6 m is successfully obtained by the developed equipment.The straightness deviation of the part is less than 5 mm,and the stacer workpieces for flight application are obtained.Thus,the research is of certain significance to improve the own stacer mass production capacity in our country.

关 键 词：伸杆机构 弹性卷筒 连续拉弯成形 恒张力控制 开卷系统 收卷系统 

分 类 号：TG386[金属学及工艺—金属压力加工]