公开(公告)号：US4456808A

公开(公告)日：1984-06-26

申请号：US355195

申请日：1982-03-05

Applicant: Harold C. Wilkinson ,  Charles E. Gum ,  Rodney C. Howe ,  Dean P. Macinskas ,  Charles C. Pease ,  Robert J. Raycher ,  Ronald Rosen ,  Francis J. Williams

Inventor： Harold C. Wilkinson ,  Charles E. Gum ,  Rodney C. Howe ,  Dean P. Macinskas ,  Charles C. Pease ,  Robert J. Raycher ,  Ronald Rosen ,  Francis J. Williams

IPC: B23K9/10 ,  B23K9/20

CPC classification number: B23K9/10 ,  B23K9/201

Abstract: Stick and stud welding apparatus which utilizes a microprocessor and related RAMs, ROMs and peripheral interface devices to control the welding parameters. The ideal desired weld current and weld cycles in the case of stud welding can be selected depending upon the mode of operation and/or stud conditions. The program for the microprocessor instructs the microprocessor to periodically compare the actual welding current to the ideal current, compute the difference and alter the phase firing time of an SCR bridge to compensate or adjust the welding current to the ideal current. In the case of stud welding mode, the program further instructs the microprocessor to reference the selected number of cycles, compute the total energy delivered across the stud and workpiece gap from actual current, welding terminal voltage and time and enlarge the number of actual weld cycles to a given percentage of that initially selected to provide a total energy input to the stud as selected. In the stud mode, the pilot arc current and cycles may likewise be selected and controlled. Such parameters as pilot arc current, pilot arc cycles, main welding current, main welding current cycles, total energy, welding terminal voltage and error occurrence are displayed visually by means of lights and/or written printout.

Abstract translation: 棒和螺柱焊接装置利用微处理器和相关的RAM，ROM和外围接口装置来控制焊接参数。 在螺柱焊接的情况下，理想的焊接电流和焊接周期可以根据操作模式和/或螺柱状况来选择。 微处理器的程序指示微处理器定期比较实际的焊接电流与理想电流，计算差值并改变SCR桥的相位点火时间，以补偿或调整焊接电流达到理想电流。 在螺柱焊接模式的情况下，程序进一步指示微处理器参考所选择的循环次数，计算跨螺柱传递的总能量和工件间隙的实际电流，焊接端子电压和时间，并扩大实际焊接周期数 到最初选择的给定百分比，以提供所选择的螺柱的总能量输入。 在螺柱模式下，同样可以选择和控制导通电弧电流和循环。 通过灯光和/或书写打印输出可视地显示诸如导通电弧电流，导频电弧周期，主焊接电流，主焊接电流周期，总能量，焊接端子电压和错误发生的参数。