基于专家PID的钻削优化控制方法研究  

Research on drilling optimization control method based on expert PID

作　　者：胡鸿志[1,2] 黄俊锋 管芳[2] 覃畅 苏海涛[1,2] HU Hongzhi;HUANG Junfeng;GUAN Fang;QIN Chang;SU Haitao(School of Electronic Engineering and Automation,Guilin University of Electronic Technology,Guilin 541004,China;Guangxi Key Laboratory of Automatic Detection Technology and Instrumentation,Guilin University of Electronic Technology,Guilin 541004,China)

机构地区：[1]桂林电子科技大学电子工程与自动化学院,桂林541004 [2]桂林电子科技大学广西自动检测技术与仪器重点实验室,桂林541004

出　　处：《现代制造工程》2021年第10期114-118,147,共6页Modern Manufacturing Engineering

基　　金：国家自然科学基金项目(21966012);广西自然科学基金项目(2018GXNSFAA294071);广西自动检测技术与仪器重点实验室主任基金项目(YQ17116);桂林电子科技大学研究生创新计划项目(2020YCXS099)。

摘　　要：针对钻削过程中轴向力突变和波动造成钻削刀具磨损过快的问题,首先以Cortex-A9微处理器和嵌入式LINUX系统为核心,建立了基于高速钢麻花钻的钻削控制系统;然后利用自主设计的钻削测力仪监测钻削力工况信号,并通过信号放大滤波和离散量化等方法,获取实时的钻削轴向力数据;最后利用专家PID控制算法实现钻削过程的自适应控制,通过对钻削进给电机速度的实时控制,减小钻削过程中的轴向力波动。对比实验的结果表明,专家PID控制算法可以显著提高轴向力稳定性,并有效地保护钻削刀具。In order to avoid the excessive wear of the drilling tool caused by the sudden change and fluctuation of the thrust force during the drilling process,the Cortex-A9 microprocessor and embedded LINUX system were employed to establish drilling control system based on high-speed steel twist drills.Furthermore,the self-designed drilling dynamometeris was used to monitor the drilling force,and obtain real-time thrust force data through signal amplification,filtering and discrete quantization.Finally,the expert PID control algorithm was applied to realize the adaptive control for the drilling process,and the thrust force fluctuation was reduced during the drilling process by the adaptive control of the drilling feed rate in real-time.The experimental results show that the expert PID control algorithm can improve the stability of the thrust force significantly,as well as protect the drilling tool effectively.

关 键 词：麻花钻 专家PID控制 轴向力 LINUX系统 

分 类 号：TP23[自动化与计算机技术—检测技术与自动化装置]