公开(公告)号：US5317116A

公开(公告)日：1994-05-31

申请号：US668519

申请日：1991-03-27

申请人： Yoichiro Tabata ,  Shigeo Ueguri ,  Yoshihiro Ueda ,  Masanori Mizuno ,  Yoshiaki Katou ,  Osamu Nagano

发明人： Yoichiro Tabata ,  Shigeo Ueguri ,  Yoshihiro Ueda ,  Masanori Mizuno ,  Yoshiaki Katou ,  Osamu Nagano

IPC分类号： B23K9/073 ,  B23K9/09 ,  B23K9/095 ,  B23K9/10 ,  G05F1/08

CPC分类号： B23K9/1062 ,  B23K9/0734 ,  B23K9/092 ,  B23K9/0953 ,  G05F1/08

摘要： A pulse welding apparatus using a pulse discharge such as a pulse arc welding apparatus and a short-circuit transfer arc welding apparatus. A pulse current waveform control circuit, which controls the pulse arc current so that a desired pulse arc current is supplied to the arc welding power supply for outputting the pulse arc current to the welding load unit, is constructed such that the optimum welding operation may be performed without having to adjust circuit components and modify circuit design. The pulse current waveform control circuit is in the form of a microcomputerized digital circuit which operates under a program to provide a desired pulse arc current. A modification of the program can provide any desired pulse arc currents without changing circuits. The optimum welding current waveform parameters or a target arc length signal is learned in the first welding stage and stored into a memory. An arc length feedback control or a current waveform control is performed under the control of program on the basis of the optimum welding current waveform parameters or the target arc length signal so as to control the faulty separation of globules when magnetic blow occurs and so as to reduce the variation of arc length due to external disturbances occurring at the welding torch so that improved welding quality is ensured under various environments.

摘要翻译： PCT No.PCT / JP90 / 00246 Sec。 371日期1991年3月27日 102（e）1991年3月27日PCT提交1990年2月27日PCT公布。 公开号WO91 / 01842 日期：1991年2月21日。一种使用脉冲放电的脉冲焊接装置，例如脉冲电弧焊接装置和短路转移电弧焊接装置。 控制脉冲电弧电流的脉冲电流波形控制电路被构造为使得最佳焊接操作可以是最佳焊接操作，该脉冲电流波形控制电路控制脉冲电弧电流，使得向焊接电源提供期望的脉冲电弧电流以向焊接负载单元输出脉冲电弧电流 执行而不必调整电路组件并修改电路设计。 脉冲电流波形控制电路是在程序下操作以提供期望的脉冲电弧电流的微计算机数字电路的形式。 该程序的修改可以提供任何期望的脉冲电弧电流而不改变电路。 在第一焊接阶段学习最佳焊接电流波形参数或目标电弧长度信号，并存储到存储器中。 基于最佳焊接电流波形参数或目标电弧长度信号，在程序控制下执行电弧长度反馈控制或电流波形控制，以便在发生磁场发生时控制球的故障分离，从而 减少由焊枪发生的外部干扰引起的电弧长度的变化，从而确保在各种环境下提高焊接质量。

公开(公告)号：US5416299A

公开(公告)日：1995-05-16

申请号：US194743

申请日：1994-02-09

申请人： Yoichiro Tabata ,  Shigeo Ueguri ,  Yoshihiro Ueda ,  Masanori Mizuno ,  Yoshiaki Katou ,  Osamu Nagano

发明人： Yoichiro Tabata ,  Shigeo Ueguri ,  Yoshihiro Ueda ,  Masanori Mizuno ,  Yoshiaki Katou ,  Osamu Nagano

IPC分类号： B23K9/073 ,  B23K9/09 ,  B23K9/095 ,  B23K9/10 ,  G05F1/08

CPC分类号： B23K9/1062 ,  B23K9/0734 ,  B23K9/092 ,  B23K9/0953 ,  G05F1/08

摘要： A pulse welding apparatus using a pulse discharge such as a pulse arc welding apparatus and a short-circuit transfer arc welding apparatus. A pulse current waveform control circuit, which controls the pulse arc current so that a desired pulse arc current is supplied to the arc welding power supply for outputting the pulse arc current to the welding load unit, is constructed such that the optimum welding operation may be performed without having to adjust circuit components and modify circuit design. The pulse current waveform control circuit is in the form of a microcomputerized digital circuit which operates under a program to provide a desired pulse arc current. A modification of the program can provide any desired pulse arc currents without changing circuits. The optimum welding current waveform parameters or a target arc length signal is learned in the first welding stage and stored into a memory. An arc length feedback control or a current waveform control is performed under the control of program on the basis of the optimum welding current waveform parameters or the target arc length signal so as to control the faulty separation of globules when magnetic blow occurs and so as to reduce the variation of arc length due to external disturbances occurring at the welding torch so that improved welding quality is ensured under various environment.

摘要翻译： 使用脉冲放电的脉冲焊接装置，例如脉冲电弧焊接装置和短路转移电弧焊接装置。 控制脉冲电弧电流的脉冲电流波形控制电路被构造为使得最佳焊接操作可以是最佳焊接操作，该脉冲电流波形控制电路控制脉冲电弧电流，使得向焊接电源提供期望的脉冲电弧电流以向焊接负载单元输出脉冲电弧电流 执行而不必调整电路组件并修改电路设计。 脉冲电流波形控制电路是在程序下操作以提供期望的脉冲电弧电流的微计算机数字电路的形式。 该程序的修改可以提供任何期望的脉冲电弧电流而不改变电路。 在第一焊接阶段学习最佳焊接电流波形参数或目标电弧长度信号，并存储到存储器中。 基于最佳焊接电流波形参数或目标电弧长度信号，在程序控制下执行电弧长度反馈控制或电流波形控制，以便在发生磁场发生时控制球的故障分离，从而 减少由焊枪发生的外部干扰引起的电弧长度的变化，从而确保在各种环境下提高焊接质量。

公开(公告)号：US5281791A

公开(公告)日：1994-01-25

申请号：US601723

申请日：1990-12-27

申请人： Yoichiro Tabata ,  Shigeo Ueguri ,  Yoshihiro Ueda ,  Masanori Mizuno ,  Yoshiaki Katou ,  Osamu Nagano

发明人： Yoichiro Tabata ,  Shigeo Ueguri ,  Yoshihiro Ueda ,  Masanori Mizuno ,  Yoshiaki Katou ,  Osamu Nagano

IPC分类号： B23K9/073 ,  B23K9/09

CPC分类号： B23K9/0732 ,  B23K9/0735 ,  B23K9/092

摘要： A pulsed arc welding for carrying out arc welding or short-circuit transfer type arc welding by utilizing the pulsed discharge generated at the tip of a wire electrode. The propensity of wire electrode curvature causes irregular changes in the contact point of the wire electrode and variations in the arc length between the wire electrode tip and workpieces. Consequently, the invention detects arc voltage and current and checks the instantaneous variation in the arc length. The arc voltage value thus detected is converted to a reference arc voltage variable. Then the detected arc voltage value is compared with the reference value to compute a true arc length. A simulation arc length signal, which varies as welding proceeds, and a reference simulation welding current waveform are set, to compare the simulation arc length signal with the computed arc length signal. The reference simulation welding current waveform is corrected according to this difference signal to form and output a welding current waveform, which is controllable instantaneously to provide an ideal target arc length. Welding can be carried out with stability since the wire electrode is allowed to hold the simulation arc length during each welding process.

摘要翻译： PCT No.PCT / JP90 / 00245 Sec。 371日期1990年12月27日第 102（e）1990年12月27日PCT PCT 1990年2月27日提交PCT公布。 公开号WO90 / 09857 1990年9月7日。一种脉冲弧焊，用于通过利用在线电极尖端产生的脉冲放电进行电弧焊或短路转移型电弧焊。 线电极弯曲的倾向导致线电极的接触点的不规则变化和线电极末端和工件之间的电弧长度的变化。 因此，本发明检测电弧电压和电流并检查电弧长度的瞬时变化。 这样检测的电弧电压值被转换为参考电弧电压变量。 然后将检测到的电弧电压值与参考值进行比较，以计算真正的电弧长度。 设定随着焊接进行而变化的模拟弧长信号和参考模拟焊接电流波形，将模拟电弧长度信号与计算出的电弧长度信号进行比较。 根据该差分信号对参考模拟焊接电流波形进行校正，形成并输出可瞬时控制的焊接电流波形，提供理想的目标电弧长度。 可以稳定地进行焊接，因为允许线电极在每个焊接过程期间保持模拟电弧长度。

公开(公告)号：US5406052A

公开(公告)日：1995-04-11

申请号：US602232

申请日：1990-10-26

申请人： Masanori Mizuno ,  Yoshiaki Katou ,  Osamu Nagano ,  Yoichiro Tabata ,  Shigeo Ueguri ,  Yoshihiro Ueda

发明人： Masanori Mizuno ,  Yoshiaki Katou ,  Osamu Nagano ,  Yoichiro Tabata ,  Shigeo Ueguri ,  Yoshihiro Ueda

IPC分类号： B23K9/09

CPC分类号： B23K9/092

摘要： The welding equipment according to the present invention divides the pulsed electric current fed to a base metal in the course of a welding process into a plural number of pulse groups, performing instantaneous control over the base electric current period and the base electric current value applied to each of the pulse intervals of the individual pulses within such a group of pulsed electric currents and to each of the groups of pulsed electric currents, the pulse peak value and pulse width of each pulse, and such instantaneous control over a short circuit period and an arc period in the course of performance of the short circuiting transfer arc welding process, in accordance with the detected arc length, in such a manner that an ideal target arc length is thereby achieved. The welding equipment is capable of achieving the separation and transfer of molten globules to the base metal with regularity and also reducing the fluctuations in the short circuit period and the arc period in the short circuiting transfer arc welding process, offering the advantage that the equipment can control the growth and separation of molten globules without being affected by the phenomenon of magnetic arc blow of the arc and can achieve improvements on the quality of weldments even if fluctuations should occur in the shape of welded joints and in the position of the earthing point in operation with the actual arc.

摘要翻译： PCT No.PCT / JP90 / 00244 Sec。 371 1990年10月26日第 102（e）1990年10月26日PCT PCT 1990年2月27日PCT公布。 出版物WO90 / 09856 1990年9月7日。根据本发明的焊接设备将在焊接过程中馈送到母材的脉冲电流分成多个脉冲组，对基本电流周期进行瞬时控制， 施加到这样一组脉冲电流内的各个脉冲的每个脉冲间隔的基极电流值以及脉冲电流组中的每一组脉冲峰值和每个脉冲的脉冲宽度，以及这种瞬时控制 在短路转移电弧焊接工序的过程中，根据检测出的电弧长度，由此实现理想的目标电弧长度。 焊接设备能够有规律地实现熔池与基体金属的分离和转移，并且还可以减少短路转移电弧焊接过程中短路周期和电弧周期的波动，提供设备可以 控制熔融球的生长和分离，而不受电弧磁弧冲击现象的影响，即使在焊接接头的形状和接地点的位置发生波动也可以提高焊接质量 操作与实际弧。

公开(公告)号：US5726419A

公开(公告)日：1998-03-10

申请号：US571187

申请日：1995-12-12

申请人： Yoichiro Tabata ,  Shigeo Ueguri ,  Yoshihiro Ueda ,  Masanori Mizuno ,  Yoshiaki Kato ,  Osamu Nagano

发明人： Yoichiro Tabata ,  Shigeo Ueguri ,  Yoshihiro Ueda ,  Masanori Mizuno ,  Yoshiaki Kato ,  Osamu Nagano

IPC分类号： B23K9/09 ,  G05F1/08

CPC分类号： B23K9/092 ,  B23K9/093 ,  G05F1/08

摘要： In pulse welding apparatus of arc welding or short-circuit transfer type arc welding in which a pulse discharge created on the tip of a wire electrode is utilized to perform welding, when a molten droplet produced on the tip of wire electrode is late to separate from the wire due to variations of welding conditions and external disturbances, the wire-supplying speed at which the wire is supplied to the weld zone changes causing undercut. To prevent this, pulse current supplied to the base metal is divided into a plurality of pulse groups and the average current reaches the maximum peak value at a predetermined time after beginning of outputting the pulses, and the group of pulse currents is of a hill-shape in its envelope in accordance with the separation phenomenon of molten droplet, and the group of pulse currents is arranged to have different pulse period, pulse width, and pulse interval. In sort-circuiting arc welding, the short-circuit and arc are instantly controlled in accordance with the detected arc length or wire-supplying speed. This ensures the separation of the molten droplet and its transfer onto the base metal in regular manner. As a result, the growth and separation of molten droplet is not affected by magnetic blow of arc but is controllable.

摘要翻译： 在电弧焊接或短路转移型电弧焊接的脉冲焊接装置中，其中利用线电极的尖端产生的脉冲放电来进行焊接，当在线电极的尖端上产生的熔融液滴迟到时， 由于焊接条件和外部干扰的变化引起的电线，将焊丝供给到焊接区域的焊丝供给速度变化，导致底切。 为了防止这种情况，提供给贱金属的脉冲电流被分成多个脉冲组，并且在开始输出脉冲之后的预定时间内平均电流达到最大峰值，并且脉冲电流组是小时 - 根据熔滴的分离现象形成其包络线，并且脉冲电流组被布置为具有不同的脉冲周期，脉冲宽度和脉冲间隔。 在分选电弧焊接中，根据检测到的电弧长度或电线供电速度立即控制短路和电弧。 这样可以确保熔融液滴的分离及其以规则的方式转移到贱金属上。 结果，熔滴的生长和分离不受电弧的磁力冲击的影响，但是是可控的。

公开(公告)号：US5495091A

公开(公告)日：1996-02-27

申请号：US279069

申请日：1994-07-22

申请人： Yoichiro Tabata ,  Shigeo Ueguri ,  Yoshihiro Ueda ,  Masanori Mizuno ,  Yoshiaki Kato ,  Osamu Nagano

发明人： Yoichiro Tabata ,  Shigeo Ueguri ,  Yoshihiro Ueda ,  Masanori Mizuno ,  Yoshiaki Kato ,  Osamu Nagano

IPC分类号： B23K9/09 ,  G05F1/08

CPC分类号： B23K9/092 ,  B23K9/093 ,  G05F1/08

摘要： In pulse welding apparatus of arc welding or short-circuit transfer type arc welding in which a pulse discharge created on the tip of a wire electrode is utilized to perform welding, when a molten droplet produced on the tip of wire electrode is late to separate from the wire due to variations of welding conditions and external disturbances. The wire-supplying speed at which the wire is supplied to the weld zone changes. This causes undercut, i.e., a defect in welding bead-shape that presents adverse effect to welding quality. To prevent this problem, pulse current supplied to the base metal is divided into a plurality of pulse groups and the average current reaches the maximum peak value at a predetermined time after beginning of outputting the pulses, and the group of pulse currents is of a hill-shape in its envelope in accordance with the separation phenomenon of molten droplet, and the group of pulse currents is arranged to have different pulse period, pulse width, and pulse interval. In the sort-circuiting arc welding, the short-circuit and arc are instantly controlled in accordance with the detected arc length or wire-supplying speed.

摘要翻译： 在电弧焊接或短路转移型电弧焊接的脉冲焊接装置中，其中利用线电极的尖端产生的脉冲放电进行焊接，当在线电极的尖端上产生的熔融液滴迟到时， 由于焊接条件和外部干扰的变化引起的电线。 将焊丝供给到焊接区域的焊丝供给速度发生变化。 这导致底切，即焊接珠形状的缺陷，其对焊接质量产生不利影响。 为了防止这种问题，提供给母材的脉冲电流被分成多个脉冲组，并且在开始输出脉冲之后的预定时间内平均电流达到最大峰值，并且脉冲电流组是小山 根据熔滴的分离现象在其信封中设置，并且脉冲电流组被布置为具有不同的脉冲周期，脉冲宽度和脉冲间隔。 在分选电弧焊接中，短路和电弧根据检测到的电弧长度或电线供电速度立即进行控制。

公开(公告)号：US4425493A

公开(公告)日：1984-01-10

申请号：US281530

申请日：1981-07-08

申请人： Takaji Mizuno ,  Masanori Mizuno ,  Hirotsugu Komura ,  Shigeo Ueguri ,  Youichiro Tabata

发明人： Takaji Mizuno ,  Masanori Mizuno ,  Hirotsugu Komura ,  Shigeo Ueguri ,  Youichiro Tabata

IPC分类号： B23K9/09

CPC分类号： B23K9/091

摘要： A pulse arc welding machine in which the repetition frequency of the pulse currect is unaffected by the frequency of the power source and the mean value of the pulse current applied can be accurately controlled over a broad range while the arcing is maintained stable. A pulse peak current supplying circuit is connected in series with an arcing region formed between a consumable wire electrode and a material to be welded between the output terminals of a standard direct current source while a base current supplying circuit is connected in parallel with the pulse peak current supplying circuit. The pulse peak current supplying circuit and the base current supplying circuit are both composed of a switching element such as a transistor coupled in series with an inductive element. Diodes are provided for suppressing high voltage transients in the circuit.

摘要翻译： 一种脉冲电弧焊接机，其中脉冲重复频率不受电源频率的影响，并且在电弧保持稳定的同时，可以在宽范围内精确地控制施加的脉冲电流的平均值。 脉冲峰值电流供给电路与在标准直流电源的输出端子之间形成的消耗性电极电极与被焊接材料之间形成的电弧区域串联连接，而基极电流供给电路与脉冲峰值并联连接 电流供应电路。 脉冲峰值电流供给电路和基极电流供给电路均由与感应元件串联连接的晶体管等开关元件构成。 二极管用于抑制电路中的高电压瞬变。

公开(公告)号：US4427874A

公开(公告)日：1984-01-24

申请号：US281260

申请日：1981-07-08

申请人： Youichiro Tabata ,  Shigeo Ueguri ,  Takaji Mizuno ,  Masanori Mizuno

发明人： Youichiro Tabata ,  Shigeo Ueguri ,  Takaji Mizuno ,  Masanori Mizuno

IPC分类号： B23K9/09 ,  B23K9/095

CPC分类号： B23K9/091

摘要： A pulse arc welding machine in which, when any one of the material and diameter of a consumable wire electrode or the shielding gas used is varied, a peak current value and pulse width of a pulse current applied between a consumable wire electrode and a base material being welded as well as a wire feeding speed required for optimum welding conditions are automatically adjusted. The welding machine includes a consumable wire electrode, a wire feeding unit for the wire electrode, a base current source, and a pulse current source for supplying a pulse current superposed on the base current. A sensor detects the arc discharge voltage between the consumable electrode and the base material being welded. The quantity of heat applied to the electrode is corrected by comparing an output detection signal produced by the sensor with a preset arc voltage and then producing a pulse width instruction signal in response to the difference signal for setting the pulse width of the pulse current. When the detected arc voltage is large, the quantity of heat applied to the electrode by the welding current is decreased and the wire feeding speed is increased, while when the arc voltage is small, the quantity of heat applied to the wire electrode is increased and the wire feeding speed decreased.

摘要翻译： 一种脉冲电弧焊接机，其中，当消耗线电极的材料和直径或使用的保护气体中的任何一种发生变化时，施加在可消耗线电极和基材之间的脉冲电流的峰值电流值和脉冲宽度 被焊接以及最佳焊接条件所需的送丝速度被自动调节。 焊接机包括消耗线电极，用于线电极的送丝单元，基极电流源和用于提供叠加在基极上的脉冲电流的脉冲电流源。 传感器检测消耗性电极和被焊接的基材之间的电弧放电电压。 通过将由传感器产生的输出检测信号与预置的电弧电压进行比较来校正施加到电极的热量，然后响应用于设置脉冲电流的脉冲宽度的差信号产生脉冲宽度指令信号。 当检测到的电弧电压大时，通过焊接电流施加到电极的热量减少并且焊丝进给速度增加，而当电弧电压小时，施加到线电极的热量增加，并且 送丝速度降低。

公开(公告)号：US4665299A

公开(公告)日：1987-05-12

申请号：US780171

申请日：1985-09-26

申请人： Akihiko Iwata ,  Yoshiaki Katou ,  Masanori Mizuno

发明人： Akihiko Iwata ,  Yoshiaki Katou ,  Masanori Mizuno

IPC分类号： B23K9/073 ,  B23K9/10

CPC分类号： B23K9/0732 ,  B23K9/1056

摘要： An arc welding power source utilizing welding current from a two-step voltage conversion comprising a first target value setting circuit means for setting a first current target value V.sub.1 corresponding to a desired value of welding current, a current control circuit for controlling the welding current in accordance with the first current target value V.sub.1, a second target value setting circuit means for setting a second current target value V.sub.2 higher than the first current target value for satisfying a predetermined current waveform in response to an abrupt load variation, and a rapid operation current control circuit for controlling the welding current in accordance with the second current target value V.sub.2. Thus, even if the welding load tends to abruptly vary and the welding current tends to largely exceed the first current target value V.sub.1, the welding current is clipped by the second current target value V.sub.2 by the rapid operation current control circuit having a rapid response so as to maintain the actual welding current in the allowable V.sub.1 -V.sub.2 range.

摘要翻译： 一种电弧焊电源，其利用来自两级电压转换的焊接电流，包括用于设定与焊接电流的期望值相对应的第一电流目标值V1的第一目标值设定电路装置，用于控制焊接电流的电流控制电路 根据第一电流目标值V1，第二目标值设定电路装置，用于响应于突然的负载变化，设定高于第一电流目标值的第二电流目标值V2以满足预定电流波形，以及快速操作电流 控制电路，用于根据第二电流目标值V2控制焊接电流。 因此，即使焊接负载倾向于突然变化，焊接电流趋于大大超过第一电流目标值V1，则焊接电流被具有快速响应的快速操作电流控制电路所限制的第二电流目标值V2 以将实际焊接电流保持在允许的V1-V2范围内。

公开(公告)号：US5408482A

公开(公告)日：1995-04-18

申请号：US8622

申请日：1993-01-25

申请人： Osamu Nagano ,  Masanori Mizuno ,  Tsukasa Fukushima

发明人： Osamu Nagano ,  Masanori Mizuno ,  Tsukasa Fukushima

IPC分类号： B23K26/42 ,  H01S3/00 ,  H01S3/10 ,  H01S3/104 ,  H01S3/105 ,  H01S3/131 ,  H01S3/133

CPC分类号： H01S3/1312 ,  B23K26/702 ,  H01S3/10

摘要： An apparatus for and a method of controlling a laser oscillator for use as a laser source in a machining operation or the like is disclosed. In particular, the present invention compensates for a deviation of an actual input/output characteristic of a laser oscillator from a normal (expected) input/output characteristic due to, for example, aging and the like. The present invention approximates the actual input/output characteristic and stores the characteristic as a pattern in a storage device. In response to a detection of the actual laser output and an external intensity command signal, the present invention refers to the input/output characteristic pattern thus approximated and generates an input intensity command signal for controlling the laser oscillator to accurately produce the desired laser beam intensity irrespective of the deviation between the actual input/output characteristic and the normal characteristic.

摘要翻译： 公开了一种在加工操作等中控制用作激光源的激光振荡器的装置和方法。 特别地，本发明由于例如老化等而补偿激光振荡器的实际输入/输出特性与正常（预期）输入/输出特性的偏差。 本发明近似于实际的输入/输出特性，并将特征作为图案存储在存储装置中。 响应于实际激光输出的检测和外部强度指令信号，本发明参考如此近似的输入/输出特性图案，并且产生用于控制激光振荡器以精确地产生所需激光束强度的输入强度指令信号 而与实际输入/输出特性与正常特性之间的偏差无关。