超细桥丝全自动焊接的走丝张力控制方法

Wire Feeding Tension Control Method for Fully Automatic Welding of Ultra-Fine Bridge Wire

针对电雷管超细桥丝焊接全自动化生产线中走丝稳定性问题,提出了基于缠绕瞬时半径、焊丝瞬时张力二维PID控制的方法,控制走丝稳定、不断裂,能够更精准地保证细焊丝的送丝稳定性,有效避免打结、折断。通过对9μm镍铬合金丝在两边等宽窄脉宽驱动信号送丝的仿真测试,结果表明:张力、张应力分别小于容许张力值、许用应力值,满足走丝稳定的充分和必要条件;能够控制微米级镍铬合金丝张力,可为今后电雷管生产的智能制造、超细桥丝全自动焊接生产线和引信电火工品全自动焊接设备研制提供参考。

Aiming at the problem of wire traveling stability in the fully automatic production line of ultra-fine bridge wire welding for electric detonator,a two-dimensional PID control method based on instantaneous radius of winding and instantaneous tension of welding wire was proposed,which has the ability to control wire traveling stability and continuous cracking,more accurately guarantees wire feeding stability of fine welding wire,and effectively avoids no knot and break.Through the simulation test of 9μm nickel-chromium alloy wire with equal width and narrow pulse width driving signal on both sides,the results show that the tension and tension stress are less than the allowable tension value and allowable stress value respectively,which satisfies the sufficient and necessary conditions for wire traveling stability.It can control the tension of micron nickel-chromium alloy wire and can be used for future electric detonators.It can provide reference for intelligent manufacturing,ultra-fine bridge wire automatic welding production line and fuze electrical explosive products automatic welding equipment development.