MICROPROCESSOR CONTROL OF WELDING APPARATUS
    1.
    发明申请
    MICROPROCESSOR CONTROL OF WELDING APPARATUS 审中-公开
    焊接设备的微处理器控制

    公开(公告)号:WO1982003033A1

    公开(公告)日:1982-09-16

    申请号:PCT/US1982000273

    申请日:1982-03-05

    CPC classification number: B23K9/10 B23K9/201

    Abstract: Stick and stud welding apparatus which utilizes a microprocessor (30) and related, RAMs (32) ROMs (33) and peripheral interface devices (3 1, 32, 35) 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 (28) and/or written printout (29).

    Abstract translation: 使用微处理器(30)和相关的RAM(32)ROM(33)和外围接口装置(31,32,35)来控制焊接参数的棒和螺柱焊接装置。 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/或螺柱状态来选择。 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。 通过光(28)和/或书写打印输出(29)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。

    Solid-state switching-circuit for capacitor discharge stud welding
    2.
    发明授权
    Solid-state switching-circuit for capacitor discharge stud welding 失效
    用于电容器放电焊接的固态开关电路

    公开(公告)号:US3564192A

    公开(公告)日:1971-02-16

    申请号:US3564192D

    申请日:1968-04-30

    CPC classification number: B23K11/0053 B23K11/26

    Abstract: Welding apparatus including a welding gun for holding a stud to be welded to a workpiece and a source of welding energy including a capacitor together with current control means for discharging the capacitor across the stud and workpiece to effect the weld where the current control means includes a gating rectifier between the capacitive power supply and the stud and workpiece and a bleed resistor across the capacitive power supply and a cathode of the gating rectifier and parallel to the stud and workpiece to control dV/dt between the anode and cathode of the gating rectifier.

    Temperature-compensating stud-welding power supply
    3.
    发明授权
    Temperature-compensating stud-welding power supply 失效
    温度补偿研磨焊接电源

    公开(公告)号:US3564194A

    公开(公告)日:1971-02-16

    申请号:US3564194D

    申请日:1968-06-26

    Inventor: PEASE CHARLES C

    CPC classification number: B23K9/1012 B23K9/1081 B23K9/201

    Abstract: A temperature-compensating circuit which employs a voltage divider across a battery to be charged which has a thermistor in one leg thereof and a capacitor across the opposite leg thereof. The capacitor, on reaching a predetermined charge, supplies a gating pulse through a unijunction transistor to a silicon controlled rectifier which operates a relay for discontinuing charging of the battery. A relay in the discharge circuit of the welding apparatus senses welding current and breaks the current flow through the silicon-controlled rectifier to deenergize the relay and reset the circuit for recharging of the battery following partial discharge thereof. A capacitor in parallel with the relay maintains the relay energized a predetermined time to prevent recharging of the battery until the welding cycle is completed.

    Spud welding method
    4.
    发明授权
    Spud welding method 失效
    SPUD焊接方法

    公开(公告)号:US3641305A

    公开(公告)日:1972-02-08

    申请号:US3641305D

    申请日:1970-04-20

    CPC classification number: B23K9/202

    Abstract: Apparatus and method for welding hollow studs (spuds) over a hole in a workpiece which includes the use of a hollow arc shield disposed within the hollow spud and having one end thereof projecting into the hole in the workpiece to provide alignment for the spud over the hole and to maintain the hole free of molten metal during the welding operation. The spud preferably includes a chamfer in the weldable end thereof. The chuck for retaining the spud includes a second chuck therein for retaining one end of the internal arc shield and serves both as a retainer for the arc shield and as a stop member for the spud.

    Abstract translation: 用于在工件上的孔上焊接中空螺柱(轴)的装置和方法,其包括使用设置在中空立柱内的中空弧形防护罩,并且其一端突出到工件中的孔中以提供对准 并且在焊接操作期间保持孔没有熔融金属。 该突出物优选地在其可焊接端包括倒角。 用于保持立柱的卡盘包括用于保持内部电弧屏蔽的一端的第二卡盘,并且用作电弧屏蔽的保持器和用作支脚的止动构件。

    Control circuit for stud feeding mechanism
    5.
    发明授权
    Control circuit for stud feeding mechanism 失效
    用于投放机构的控制电路

    公开(公告)号:US3586814A

    公开(公告)日:1971-06-22

    申请号:US3586814D

    申请日:1968-05-16

    Inventor: PEASE CHARLES C

    CPC classification number: B23K9/206

    Abstract: Coordinator for coordinating the operation of a stud welding controller, a stud welding gun and mechanism for automatically feeding studs to a welding gun including circuit means for overriding the welding cycle initiating signal whenever the welding gun is not in the welding position and for completing a circuit for initiating automatic stud feeding whenever the welding gun is in other than its welding position. A manually operable stud feeding circuit is included. An AND gate is employed in the automatic stud feeding circuit to prevent stud feeding until both a stud welding cycle initiating signal and a stud feeding signal are received. The welding cycle initiating circuit and the manually operable stud feeding circuit include memory circuits which maintain the signals from the circuits for a predetermined period of time determined by a preset timer which is initiated by passage of a signal through the AND gate and which resets the memory circuits upon timing out.

    WELDING APPARATUS.
    7.
    发明公开
    WELDING APPARATUS. 失效
    SCHWEISSVORRICHTUNG。

    公开(公告)号:EP0073818A4

    公开(公告)日:1983-07-08

    申请号:EP82901212

    申请日:1982-03-05

    CPC classification number: B23K9/10 B23K9/201

    Abstract: Stick and stud welding apparatus which utilizes a microprocessor (30) and related, RAMs (32) ROMs (33) and peripheral interface devices (3 1, 32, 35) 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 (28) and/or written printout (29).

    Abstract translation: 使用微处理器(30)和相关的RAM(32)ROM(33)和外围接口装置(31,32,35)来控制焊接参数的棒和螺柱焊接装置。 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/或螺柱状态来选择。 微处理器程序指令微处理器定期将实际焊接电流与理想电流进行比较,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至理想电流。 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(28)和/或书写打印输出(29)可视地显示诸如导电电弧电流,导频电弧循环,主焊接电流,主焊接电流循环,总能量,焊接端子电压和错误发生的参数。

    BOILER TUBE WEARBAR, STUD AND ARC SHIELD

    公开(公告)号:CA1177711A

    公开(公告)日:1984-11-13

    申请号:CA390122

    申请日:1981-11-16

    Abstract: Apparatus and methods for replacing or repairing missing or damaged abrasion resistant wearbars utilized in high velocity cyclone boilers. A retrofit wearbar having an aperture therein is utilized in conjunction with an end weldable stud wherein the wearbar and stud are placed in position over a damaged wearbar or against the boiler tube in the case of a missing wearbar and the stud end welding technique utilized to fuse the wearbar and stud in place with the damaged wearbar or boiler tube in the case of a missing wearbar in situ. An arc shield is utilized which has a projection from the weld fillet cavity thereof which cooperates in conjunction with the aperture of the retrofit wearbar to provide alignment of the stud in the wearbar and prevent shorting of the stud to the wearbar during the welding cycle.

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