基于总线的移动式钢轨闪光焊机控制系统

Research on control system of mobile rail flash butt welding machine on the basis of bus

移动式钢轨闪光焊机现场施工时,焊机机头与控制柜之间操作、检测和控制信息的传递通过电缆进行,该连接电缆芯数多且距离长,从而导致控制系统故障率高,且检修难度大。针对上述问题,提出了基于CC-link总线设计系统的软硬件解决方案。采用FX2N-16CCL-M主站模块、FX2N-64MR三菱PLC、AJ65SBTB1-16D和AJ65SBTB1-16T数字量模块重新设计了基于总线的移动式钢轨闪光焊机控制系统,从而使机头和控制柜之间的信息通过总线进行传输,大大减少了焊机机头和控制柜之间连接电缆的芯数,提高了可靠性,降低了检修难度;分析新系统通过总线进行信息传输的速度和控制速度,采用总线方式完全能满足控制系统实时性的要求。通过现场试焊表明,新系统能完成钢轨的焊接。

The operation,sensor,and control information between the machine and controller is transferred through the cable when the mobile rail flash butt welding machine is used in continuous line construction, because the cable is long and muhi-core,the control system is of low reliability,and is difficult to be maintained.According to the problem mentioned above,a new project based on CC- link was put forward to solve this problem.The control system was designed on the basis of the host module FX2N-16CCL-M,the PLC FX2N-64MR and the digital module AJ65SBTBl-16D/T,so the core of the cable,through which the information between the machine and controller was transferred ,was reduced, the reliability was improved, and the maintenance was become easy.The control system＇s response rate and information＇s transmission rate was analyzed,and the new control system can demand the real-time request.The experiment indicated that the new control system could finish the welding process.