摘要
目的:为检测注塑机锁模力,设计了基于注塑机拉杆(哥林柱)应力检测的注塑机锁模力感知仪。方法:利用无滑动依附于注塑机拉杆上的应变片能实时感知注塑机拉杆的形变的特性,通过应变片电桥对拉杆应力进行实时检测,从而获得锁模力。电桥信号经过信号调理模块,到ARM微控制器的采样端,采样结果,也即拉杆应力大小,将通过输出采样保持阵列,以电压量的形式输出至注塑机主控系统,同时通过Wi-Fi将锁模力上传至本地服务器。结果:使用折线拟合计算的锁模力与真实的锁模力之间的最大绝对误差为-67.182 kN,最大相对误差为-3.648%。结论:设计的锁模力感知仪其性能满足生产的要求,在注塑机锁模力检测领域具有应用价值。
Aims:To detect the locking force of injection molding machines,the stress detection of the injection molding machine tie-rod(tie bars)was used to construct an injection molding machine clamping force perception instrument in this work.Methods:The deformation features of the injection molding machine’s tie rod could be sensed in real time using the strain gauge attached to the tie rod without sliding;and the stress of the tie rod could be detected in real time using the strain gauge bridge to get the clamping force.The bridge signal was sent through the signal conditioning module to the ARM microcontroller’s sampling end.Through the output sampling holding array,the sample result,specifically the pull rod stress,would be sent to the injection molding machine’s main control system in the form of voltage.Meanwhile,the mode-locking force would be transmitted through Wi-Fi to the local server.Results:Between the clamping force determined by broken line fitting and the actual clamping force,the highest absolute error and the maximum relative error were-67.182 kN and-3.648%,respectively.Conclusions:The sensor has satisfactory performance and can be used in the area of injection molding machine mould locking force detection.
作者
邓俊文
颜幸尧
胡美君
何贵福
聂德明
黄兴隆
陈潘布衣
DENG Junwen;YAN Xingyao;HU Meijun;HE Guifu;NIE Deming;HUANG Xinglong;CHEN Panbuyi(College of Metrology and Measurement Engineering,China Jiliang University,Hangzhou 310018,China;Fair Friend Institute of Intelligent Manufacturing,Hangzhou Vocational and Technical College,Hangzhou 310018,China;Zhishang Heavy Industries Co.,Ltd.,Wenzhou 325600,China)
出处
《中国计量大学学报》
2022年第4期494-500,共7页
Journal of China University of Metrology
基金
浙江省教育厅科研项目(No.Y202250587)。
关键词
锁模力
哥林柱
拉杆拉力测量
注塑机
mold clamping force
tie bars
rod tension measurement
injection molding machine
