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微机控制的各种阻焊质量监控器的基本原理及方法 总被引:8,自引:1,他引:8
现代阻焊质量监控器几乎均采用了微机控制,出现了多种类型和方法的监控器。本文较为全面、详细地介绍了微机控制的各种恒流法、热膨胀电极位移法及动态电阻法三类监控器的基本原理及方法,文中还简要介绍了微机在阻焊中其它方面的应用。 相似文献
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电阻缝焊在器件封装等应用中要求电源具有较高的精密性.针对精密电阻缝焊的要求,研制了逆变电阻缝焊电源,文中简要介绍了电源主电路、控制电路的构成和系统控制软件结构,介绍了适应于精密焊接的波形设计,给出了实际波形测试结果.结果表明,电源的波形设定灵活,电流、时间等参数控制准确,能够满足精密焊接的需要.实际用于晶振等器件的平行缝焊封装,表明该电源能满足高质量的焊接要求,是一种理想的精密缝焊电源.Abstract: A new type of inverter of resistance seam welding power supply was developed for precision welding in device packaging. The main power circuit, control circuit and control software are briefly introduced, and the special current waveform designed for precision welding is introduced in detail. Experiments show that the current waveform can be set flexibly and the parameters such as currem and time can be controlled accurately. The actual use for parallel seam welding of crystal oscillator shows that the power source can meet the requirements of high-quality welding, which is an ideal precision seam welding power source for fine scale parts. 相似文献
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The paper describes a monitoring and control platform development for arc welding processes, which provides versatility and efficiency in the scientific study of the welding technology. The implemented system is capable of executing different welding processes and promotes substantial logical operation changes in a simple and didactic way. Among the innovations promoted by the development of the system is the ability to draw MIG/MAG welding process current waveforms, thereby allowing studies related to metal transfer, and, as a consequence of this, making technological innovations to this process. The monitoring and control platform has been developed to be able to absorb new technologies, allowing upgrades along the welding process evolution path. In this context, this system is a significant potential alternative to studies related to welding, in educational and research institutions within and outside the country. 相似文献
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单片机控制的全位置自动TIG焊机的研制 总被引:1,自引:0,他引:1
介绍了MCS—51单片机控制的全位置自动TIG焊机的主要硬件和软件,提出了一种新的晶闸管脉冲TIG焊电源的单片机恒流控制方法。该机能完成全位置自动TIG焊的时序控制、各焊接位置的电流转换及焊接电流的恒流控制。 相似文献
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在重要零部件电阻焊过程中,监控参数的可视化有助于在线评估焊接质量,本文讨论了用Visual Basic6.0在PC机上实现串行通讯和焊接电流波形显示的软件方案;分析了典型单脉冲、双脉冲、2周期单脉冲焊接电流波形和网压上升,下降时的监控/不监控对比波形,以此直观以说明三相次级整流点焊的主要特征和优势,以及恒流监控的效果,所讨论的方案已成功运用于三相次级整流点焊机控制系统,并服务于某重要产品铝合金壳体焊接,在立践中,焊接电流波形显示和存档成为操作和检验人员进行焊接质量控制的重要辅助手段。 相似文献