基于柔顺机构的压电式微喷点胶系统设计与性能分析

胡俊峰; 梁龙; 赵永祥

doi:10.3788/OPE.20192709.1990

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基于柔顺机构的压电式微喷点胶系统设计与性能分析

微纳技术与精密机械 | 更新时间：2020-08-13

- 基于柔顺机构的压电式微喷点胶系统设计与性能分析
- Design and performance analysis of piezoelectric micro-spray dispensing system based on compliant mechanism
- 光学精密工程 2019年27卷第9期页码：1990-2001
- 作者机构：
  
  江西理工大学机电工程学院，江西赣州 341000
- 作者简介：
  
  [ "胡俊峰(1978-)，男，江西临川人，博士，副教授，硕士生导师，2010年于华南理工大学获得博士学位，主要从事柔顺机构及振动控制的研究。E-mail:hjfsuper@126.com" ]
  [ "梁龙(1994-)，男，河北秦皇岛人，硕士研究生，主要从事柔顺机构的研究。E-mail: 2833772790@qq.com" ]
  [ "赵永祥(1993-)，男，河南南阳人，硕士研究生，主要从事柔顺机构的研究。E-mail：969197563@qq.com" ]
- 基金信息：
  
  国家自然科学基金资助项目(51565016);国家自然科学基金资助项目(51865016);江西省杰出青年人才资助计划项目(20171BCB23063);江西省教育厅科学技术研究资助项目(GJJ160612);江西理工大学清江青年英才支持计划资助项目(JXUSTQJBJ2018006)
- DOI：10.3788/OPE.20192709.1990
  中图分类号： TH703;TN384
- 收稿日期：2019-01-07，
  
  录用日期：2019-3-1，
  
  纸质出版日期：2019-09-15
- 稿件说明：
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胡俊峰, 梁龙, 赵永祥. 基于柔顺机构的压电式微喷点胶系统设计与性能分析[J]. 光学精密工程, 2019,27(9):1990-2001.

Jun-feng HU, Long LIANG, Yong-xiang ZHAO. Design and performance analysis of piezoelectric micro-spray dispensing system based on compliant mechanism[J]. Optics and precision engineering, 2019, 27(9): 1990-2001.
胡俊峰, 梁龙, 赵永祥. 基于柔顺机构的压电式微喷点胶系统设计与性能分析[J]. 光学精密工程, 2019,27(9):1990-2001. DOI： 10.3788/OPE.20192709.1990.

Jun-feng HU, Long LIANG, Yong-xiang ZHAO. Design and performance analysis of piezoelectric micro-spray dispensing system based on compliant mechanism[J]. Optics and precision engineering, 2019, 27(9): 1990-2001. DOI： 10.3788/OPE.20192709.1990.

摘要

基于柔顺机构设计了一种新型压电式微喷点胶系统，该系统由供胶装置、驱动装置和撞针阀组成。点胶系统的运动特征是利用柔顺机构的弹性变形驱动撞针往复直线运动实现撞针阀的开启和闭合，完成微喷点胶功能。采用伪刚体方法得到点胶系统的驱动力、输出位移和频率特性，结果表明，系统的最大驱动力、输出位移和频率分别为56.4 N，808

m，245 Hz，说明所设计的点胶系统能满足所需的驱动力、行程和点胶速度。制作样机，通过实验分析驱动电压信号的占空比、幅值、频率和胶液黏度对胶滴直径的影响，得到了正常胶滴形成需满足的条件。实验结果表明：系统的最高点胶频率为210 Hz，最小胶滴直径为630

m，胶滴一致性误差为5.62%，说明所设计的点胶系统具有较好的性能，为微喷点胶系统设计和应用提供新的思路。

Abstract

A novel piezoelectric microspray dispensing system was designed based on a compliant mechanism. The system consisted of a glue supply device

driving device

and pin-impact valve. The motion characteristic of the dispensing system was that the elastic deformation of the compliant mechanism drived the colliding needle to move in a straight line to and fro

so that the opening and closing of the colliding needle valve could perform the function of microspray dispensing. The driving force

output displacement

and frequency characteristics of the dispensing system were obtained by using a pseudo-rigid-body method. The results show that the maximum of driving force

output displacement

and frequency of the system are 56.4 N

808

and 245 Hz

respectively. Thus

the driving force

stroke

and dispensing speed of the dispensing system can be guaranteed. The prototype was built and the effects of duty cycle

amplitude

frequency of driving voltage signal

and viscosity of glue on the droplet diameter were analyzed experimentally; the conditions for the formation of normal droplets were also determined. The experimental results show that the highest dispensing frequency of the system is 210 Hz

the minimum diameter of the droplets is 630

and the consistency error of the droplets is 5.62 %. In a word

the advantages of the proposed dispensing system are verified

which provides a new concept for the design and application of microspray dispensing system.

关键词

Keywords

references

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