基于COPRA的高强度管材弯曲成形误差自动化检测系统  

An automatic detection system for bending forming error of high strength pipe based on COPRA

作　　者：唐建林 雷呈喜[2,3] TANG Jianlin;LEI Chengxi(School of Engineering and Technology,Nanchang Vocational University,Nanchang 330500,China;School of Mechatronics Engineering,Harbin Institute of Technology,Harbin 150001,China;State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body,Hunan University,Changsha 410082,China)

机构地区：[1]南昌职业大学工程技术学院,江西南昌330500 [2]哈尔滨工业大学机电工程学院,黑龙江哈尔滨150001 [3]湖南大学汽车车身先进设计制造国家重点实验室,湖南长沙410082

出　　处：《电子设计工程》2022年第1期66-70,共5页Electronic Design Engineering

基　　金：湖南大学汽车车身先进设计制造国家重点实验开放基金(32015005)。

摘　　要：针对频域反射法、非线性时间序列定位算法受到振动影响,导致误差检测精准度低的问题,提出了基于COPRA的高强度管材弯曲成形误差自动化检测系统。使用NS-WY02位移传感器检测管材成形弯曲绝对位置。数据采集卡根据CAN总线协议采集误差数据,调理信号电路将模拟信号转换为数据形式进行采集与显示。系统设计了检测防振动装置,避免检测结果受到振动干扰。使用COPRA软件构建线性回归温度声速误差补偿模型,确定温度-声速误差,并设计误差自动化检测流程,完成系统设计。由实验结果可知,该系统振动条件下最高检测精准度为0.93,静止状态下最高检测精准度为0.99,可以消除一定范围内周期性振动的影响,能够稳定地采集误差数据。Aiming at the problem of low accuracy of error detection caused by vibration of frequency-domain reflection method and nonlinear time series positioning algorithm,an automatic detection system of bending forming error of high strength pipe based on COPRA was proposed.NS-WY02 displacement sensor is used to detect the absolute bending position of pipe forming.The data acquisition card collects error data according to CAN bus protocol,adjusts signal circuit and converts analog signal into data form for acquisition and display.The system anti-vibration device is designed to avoid vibration interference.COPRA software was used to build a linear regression temperature sound-velocity error compensation model,to determine the temperature-sound-velocity error,and to design an automatic error detection process to complete the system design.According to the experimental results,the maximum detection accuracy of the system under vibration condition is 0.93,and the maximum detection accuracy under static condition is 0.99,which can eliminate the influence of periodic vibration within a certain range,and can collect error data stably.

关 键 词：COPRA 高强度管材 弯曲成形 误差 自动化检测 

分 类 号：TN929.5[电子电信—通信与信息系统]