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次级整流点焊电流波形液晶显示与控制
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摘要
单相次级整流点焊因其输入容量小、热效率高、功率因数高、焊接质量优良等一系列独特的优点,在工业生产中广泛使用。但是,目前单相次级整流电阻焊机的控制系统,基本上借用单相交流电阻焊机的控制系统,因而无法满足单相次级整流设备及工艺方面的特殊要求。
     本文针对上述问题进行了基于89C52单相次级整流点焊控制系统及SED1335F电流波形液晶显示系统的硬件电路设计,通过理论分析建立了主电力电路精确的数学模型及控制角合理的移相范围,在先期工艺试验基础上提出了一种利用电流波形上升斜率进行单相次级整流点焊磁补偿的新方法。在软件设计中,电流百分数Ⅰ%的步长选为0.25%,控制角α的步长选为0.018°,网路电压运用半周补偿的方法,使控制系统的精度大大提高。系统采用C51与汇编混合编程的方式,对参数读入子程序、液晶显示子程序、网压及磁补偿子程序、延时子程序等进行模块化设计,软件易读、易移植、易维护,且开发周期大大缩短。
     本文设计的控制系统软、硬件均已通过调试。结果表明,系统的控制功能达到设计要求,可实现单相次级整流点焊过程控制及焊接电流波形的液晶实时显示。
     本文研制成功的单相次级整流89C52单片机控制及焊接电流波形的实时液晶显示系统,具有重要的工程应用价值。
With a series of unique characteristics such as low input capacity, high thermal efficiency, big power factor, excellent welding joints, and so on, the single phase secondary rectifying spot welding has widely been used in industry. However, the controlling system of single-phase secondary rectifying spot welding machine is basically AC spot welding machine's, so it is not fit for special spot welding technology.
    Therefore, hardware circuits of controlling system on the single secondary rectifying spot welding and liquid crystal system to display current waveforms are designed on base of an 89C52 SCM and a SED1335F LCD controller. Based on theoretic analysis, the precise mathematic mode of controlling system and a reasonable phase-shifting range of controlling angle are established, and in allusion to the rising slope of current waveforms, a new method on magnetic compensation is put forward on the base of pre-technologic experimentation for single phase secondary rectifying spot welding. During the course of designing software, a step of /% and controlling
    angle a are set to 0.25% and 0.018? respectively, and the voltage is compensated in
    half-cycle, which evidently enhances controlling system's precision. In this thesis, all of programs are made with C51 and Assembler. What's more, it is helpful to read, transplant, maintenance, and also to shorten develop cycle that subprograms about reading weld parameters, voltage and magnetic compensation, liquid crystal display and delay are respectively designed to a single module.
    The hardware and software system above has successfully been debugged, and the debug results prove it available that the system can achieve single phase secondary rectifying spot welding process and real-time display weld current waveforms on the liquid crystal screen, which accords with design purpose.
    In a word, the system of single-phase secondary rectifying spot welding controlled by an 89C52 SCM and real-time displaying weld current waveforms with liquid crystal is of important engineering value in the future.
引文
[1] 石子,次级整流电阻焊机,电焊机,1988
    [2] 中国焊接学会编,电阻焊理论与实践,机械工业出版社,1992
    [3] 赵亚光,微机在焊接中的应用,西北工业大学出版社,1989
    [4] 曾鸿志等,电阻点焊过程及质量控制的研究进展,焊接技术,2000,(5):1~3
    [5] 蒋鹏飞,声发射技术在焊接中的应用,焊接研究与生产,1994,(2):20~21
    [6] 谢坚等,电阻点焊研究进展(下),电焊机,1994,(2):23~30
    [7] 赵熹华主编,压力焊,机械工业出版社,1989
    [8] 郭蜀生等,电阻点焊质量监控系统,电焊机,1986,(4):6~11
    [9] 姜以宏等,光栅测热膨胀位移点焊质量实时控制装置研究,全国焊接年会论文集(7),1990:37~41
    [10] 钢铁等,点焊质量监控与检测的现状与发展,航天工艺,1998,(5):51~55
    [11] Darwish S M. Statistical models for spot welding of commercial aluminum sheets[J], International Journal of Machine Tools and Manufacture, 1999, 39(10)
    [12] HAO M. Osman K A. et Devolopments in characterization of resistance spot welding of aluminum[J], Welding Journal, 1996, 75(1)
    [13] 曹彪,点焊过程热膨胀变形分析,焊接学报,1995,16(2)
    [14] Commission Ⅲ resistance welding and allied joining: Documents of 1996—1997[J], Welding in the world, 1999, 43(4)
    [15] 张忠典,人工神经元网络法估测点焊接头力学性能[J],焊接学报,1997,18(1):1~5
    [16] 朱志明等,多功能逆变式弧焊机智能化人机界面设计,电焊机,2002,(2):
    
    4~6
    [17] 常云龙等,点焊控制系统中人机界面的设计,沈阳工业大学学报,2001,(5):376~378
    [18] 江乐新等,LCD在自动焊设备中的应用,河北机械,1996,(1):16~17
    [19] 王福田,电阻焊机电流波形特性与参数选择,电焊机,2002,(11):34~38
    [20] 罗贤星等,三相次级整流点焊质量监控的可视化,焊接学报,2001,(1):59~61
    [21] 陈益平等,三相次级整流电阻点焊的控制系统,电焊机,1998,(5)
    [22] 孙仁德等,定电流电阻焊机控制,电焊机,1990,(2):6~10
    [23] 姜以宏等,获得多种波形点焊焊接电流的新方法,焊接学报,1985,(2)
    [24] 鲍力立,点焊缝焊控制技术评述,电焊机,1991,(6)
    [25] 曹彪等,逆变式电阻点焊8098单片机控制系统,1997,(6):38~41
    [26] 耿正等,电阻焊设备及控制研究的进展,焊接,1998,(5):2~6
    [27] Andrew Cullison, Resistance Weld Controller Delivers the Heat Where It is Needs, Welding Journal, 1993, (6): 47~49
    [28] C. L. Tsai, et al. Analysis and Development of a Real Time Control Methodology in Resistance Spot Welding, Welding Research Supplement, 1991, (12): 339~350
    [29] A. G. Livshits, Universal Quality Assurance Method for Resistance Spot Welding Based on Dynamic Resistance, Welding Research Supplement, 1997, (9): 383~389
    [30] E. Waschkies, Process-integrated Resistance Spot-Welding Testing Using Ultrasonic Techniques, Welding in the World, 1997, (6): 345~350
    [31] 姜以宏等,铝合金点焊热膨胀电极位移法质量实时控制的研究,焊接,1995,(3):7~11
    [32] BOB Irving, The Search Goes On for the Perfect Resistance Welding
    
    Control, Welding Journal, 1996, (2): 63~68
    [33] Osman. K. A et al, Monitoring of Resistance Spot Welding Using Multi-layer Perceptions Artificial Networks in Engineering Proceeding, 1994, (4):1109~1114
    [34] 郭强等,液晶显示应用技术,电子工业出版社,1999
    [35] 周艳琼等,液晶显示技术综述,影像技术,2002,(4):10~15
    [36] 毕惠琴主编,电阻焊,机械工业出版社,1981
    [37] 杨思乾等,铁磁板件的尺寸与熔核直径及焊接电流有效值的函数关系,机械科学与技术,1992,(4):76~82
    [38] 松山钦一,抵抗溶接品质管理技术最近发展动向[J],溶接技术,1996,(3):74~78
    [39] 西口公之等,数值计会讲演概要,1988,(42):224~225
    [40] 西口公之等,数值计算利用抵抗溶接用径(第2报),溶接学会全国大会讲演概要,1988,(43):204~205
    [41] 西田顺纪等,抵抗溶接品质,溶接技术,1994,(3):77
    [42] 西田顺纪等,抵抗溶接品质(品质制御),溶接技术,1995,(3):89~97
    [43] 西田顺纪等,抵抗溶接制御,溶接技术,1996,(3):79~83
    [44] 西田顺纪等,抵抗溶接进步展望,溶接技术,1997,(3):76~77
    [45] 1992(10)
    [46] [苏]格列鲍夫等,陈幼松译,接触焊机的构造与计算,北京工业出版社,1988
    
    
    [47] 廖珍书,电阻焊变压器的直流磁化及危害浅析,电焊机,1990.NO.2
    [48] 李英林等,电阻焊机中晶闸管的失控问题及对策,焊接技术,1992.NO.4
    [49] 李崇德,现代数字存储示波器原理与应用,电子工业出版社,1989
    [50] R.E Gochiere and L. Eabiner. Interpolation and decimation of digital signals[J]. A Tutorial Review, Proc, IEEE,March, 1981
    [51] Allen Montijo. Filter design for interpolation[J]. HP Journal. Oct, 1983

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