Design of Human-Machine Interface System in Inverter Spot Welding

摘要

With the rapid development of chip technology, the control demand increasingly complex in the field of digital inverter welding power. Researches on precise control of energy conversion are developed and can meet the needs of a variety of welding process. But with the continuous improvement of user experience, the early HMI (Human Machine Interface) has been unable to meet the demands. Aiming at high frequency inverter spot welding, a human-machine interface system, with PIC32MX764F128L microprocessor as the main chip is designed. The system includes communication interface, data storage interface, monitor and alarm interface. It can realize the setting, modification, monitor and storage for welding parameters by the LCD touch screen. All the design is based on the inverter spot welding current and welding technology. It proves that the human-machine interface system is stable, easy-input and strong anti-interference ability.