线切割机走线速度换向过程控制

针对高速走线换向过程控制问题，分析了加工辊走线速度和主轴传动系统的性能对走线系统的安全性和稳定性的影响，建立传动系统数学模型.研究影响传动系统灵敏度、精度及抑制线速度扰动的各个要素，通过理论分析和实验仿真的方法，研究梯形走线规律曲线和双余弦半波速度规律曲线的传动效果，提出单余弦半波走线算法.仿真和实验结果表明：该方法传动效率高、速度曲线平滑、过渡时间短.

Switching Direction Process Control of Multi-wire Saw Spindle System

To address the problem of multi-motor system synchronized switching direction process control, this paper studied the reliability and stability of the wire winding system,which directly influenced the stability of roller wire speed and the performance of main axis transmission system. The mathematical model of the transmission system was built, and each essential factor,which influenced the sensitivity and precision of the transmission system,was investigated. Through theoretical analysis and experiment simulation, the transmission effect in trapezoid wire winding curve and the double cosine half-wave speed rule curve was studied. And the wire winding algorithm of single cosine half-wave has been proposed. The simulation and experiment results have proved that the transmission efficiency is high, the velocity curve is smooth and the transition time is short.