纺织学报 ›› 2020, Vol. 41 ›› Issue (11): 156-161.doi: 10.13475/j.fzxb.20190707806

• 机械与器材 • 上一篇    下一篇

回转结构预制体柔性针刺成型系统设计

陈小明1,2, 李皎2, 张一帆1,2, 谢军波1,2, 李晨阳2, 陈利1,2()   

  1. 1.天津工业大学 纺织科学与工程学院, 天津 300387
    2.天津工业大学 先进纺织复合材料教育部重点实验室, 天津 300387
  • 收稿日期:2019-07-31 修回日期:2020-08-10 出版日期:2020-11-15 发布日期:2020-11-26
  • 通讯作者: 陈利
  • 作者简介:陈小明(1984—),男,实验师,博士。主要研究方向为纺织机器人装备及纺织复合材料。
  • 基金资助:
    天津市教委科研计划项目(2018ZD13);天津市科委科研计划项目(19JCTPJC45800);国家自然科学基金项目(11802203);国家自然科学基金项目(11802204);天津市自然科学基金项目(18JCYBJC89000);天津市高等学校创新团队项目(TD13-5043)

Design of flexible needle-punching forming system for rotary structure preform

CHEN Xiaoming1,2, LI Jiao2, ZHANG Yifan1,2, XIE Junbo1,2, LI Chenyang2, CHEN Li1,2()   

  1. 1. School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
    2. Key Laboratory of Advanced Textile Composite Materials, Ministry of Education, Tiangong University, Tianjin 300387, China
  • Received:2019-07-31 Revised:2020-08-10 Online:2020-11-15 Published:2020-11-26
  • Contact: CHEN Li

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摘要：

针对现有异型针刺成型装备专用性强,难以适应小批量、多品种回转结构复合材料预制体的针刺成型要求的问题,提出一种复合材料回转预制体柔性针刺成型系统。根据回转预制体的针刺成型特性,提出采用四轴联动的针刺机运动机构和气动针刺头构型,基于可编程控制器(PLC)和触摸屏,设计了柔性针刺成型控制系统,并进行实验验证。实验结果表明:针刺实验针迹和模拟针迹高度一致,证明了四轴柔性针刺系统的可行性,该系统可以实现回转预制体的针刺成型;通过采用单气缸新型针刺头,针刺频率达到110次/min,针刺效率比现有的双气缸针刺头提高了1倍。

关键词: 回转结构复合材料, 三维针刺复合材料, 回转工作台, 预制体, 针刺成型

Abstract:

Existing special shaped needle-punching forming equipment is difficult to be adapted to the needle-punching forming requirements of small-volume and multi-variable rotary structure composite preforms. To address on this problem, a needle-punching forming system for flexible rotary preforms was proposed. According to the needle-punching forming characteristics of the rotary preform, a four-axis linkage needle-punching moving mechanism and a pneumatic needle-punching head configuration were used, and a needle forming system was constructed using the programmable logic controller (PLC) and the touch screen, which was verified by experiments. The research results show that the needle traces of the needle punching experiment and the simulated needle traces are highly consistent, proving the feasibility of the four-axis needle punching system. The needle punching frequency reaches 110 times per minute, and the needle punching efficiency is doubled compared with the existing double-cylinder needle punching head.

Key words: rotary structure composite, 3-D needled composite, rotary table, preform, needle-punching forming

中图分类号: 

  • TB332

图1

柔性针刺机整体结构图"

图2

针刺头结构图"

图3

回转工作台"

表1

气缸和伺服系统参数"

参数 数值 参数 数值
F 400 N Jm 1.51×10-4 kg·m2
η 0.85 Jg 0.51×10-4和
0.72×10-4 kg·m2
D 40 mm η1 0.9
P 0.5 MPa η2 0.9
Jload <0.9 kg·m2 Tm 2.4 N·m
I 60 和 12 L 20 mm

图4

PLC控制系统硬件组成"

图5

针刺轨迹计算模型"

图6

针刺子程序运行流程图"

图7

柔性针刺机样机"

图8

柔性针刺机实验验证"

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