【摘要】 在软开关电源的基础上,利用CAN总线技术研制了协同控制的Tandem型双丝焊装备。在深入分析脉冲双丝焊工艺要求的基础上,采用新型双闭环控制模式,实现了适合双丝焊要求的脉冲焊电源动特性、外特性。为减小双丝焊电弧之间的干扰,设计了基于CAN总线通信的硬件电路和基于协同控制思想的控制软件。试验表明,电源协同控制性能可满足双丝焊的要求,且焊接过程稳定、焊缝成形好、熔敷率高,显示了双丝高速焊的优质高效化特点。更多还原

【Abstract】 Based on the soft-switching power supply and by applying the CAN bus technique, a synergic controlled Tandem twin-wire high-speed welding equipment was developed.Through in-depth analysis of the technological requirements of twin-wire welding and introducing the novel double-closed-loop control mode into the control system, the dynamic and external characteristics suitable for twin-wire welding were realized.In order to decrease the interference between two arcs, the circuit based on CAN bus communication and the control software based on synergic control thought were designed.Experiments show that the synergic control performance of the power supply meets the requirements of twin-wire welding, and eminently show the merits of the high-speed double-wire welding such as the stable welding process, perfect welding seam, high welding speed etc.更多还原