Control system design for the new forming machine of high-speed traveller
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摘要: 设计了一种适用于新型高速钢丝圈成型机床的控制系统，系统整体由供料系统、送丝系统、成型系统、人机交互系统和反馈报警系统组成，以可编程控制器PLC为控制核心，伺服电机和异步电机为动力源，利用同步带传动替换传统凸轮传动; 利用模糊位置定位算法保证钢丝圈冲裁长度的一致性，通过控制输出频率实现成型主轴无级变速与高速运转; 以触摸屏为上位机监控设备，通过各工位传感器的反馈实现了机电一体化。经测算，额定功率运行下高速钢丝圈成型机床的生产效率是老式设备的1.5倍，钢丝圈产品的质量误差降至±1.37%以内。Abstract: A control system of the new forming machine of high-speed traveller is designed in the research. The system is made up of feeding, wire feeding, forming, human-computer interaction, and feedback alarm. Programmable controller (PLC)is used as the control core, servo motors and asynchronous motors are used as power sources, and the traditional cam drive is replaced by a synchronous belt drive. The fuzzy position positioning algorithm is applied to ensure the consistency of blanking length. Meanwhile, stepless speed change and high-speed operation of the forming spindle are realized by controlling the output frequency. The touch screen is the monitoring equipment of the upper computer, which realizes the mechatronics through the feedback of the sensors in each station. By calculation, the production efficiency of the machine is 1.5 times that of the old at rated power operation and the quality error is reduced to within ± 1.37%.
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Key words:
- forming machine of high-speed traveller /
- PLC control /
- automation /
- wire feeding system
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表 1 FO 1/0钢丝圈的质量误差
样品 第1组 第2组 第3组 第4组 实际1 000个FO 1/0钢丝圈的质量/g 57.5 59 59.1 57.6 标准1 000个FO 1/0钢丝圈的质量/g 58.3 58.3 58.3 58.3 质量误差/(%) -1.31 +1.2 +1.37 -1.21 
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表 2 实验参数
设备 额定功率下产量/ (个/min) 额定功率P/kW 额定主轴转速n /(r/min) 受力总和Fc/N 主轴转速系数M 常数Co 71型钢丝圈成型机 166 0.75 200 76.49 0.18 0 高速钢丝圈成型机 286 1.25 300 48.36 0.15 0.1
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