WO2010119623A1 - 溶接装置 - Google Patents
溶接装置 Download PDFInfo
- Publication number
- WO2010119623A1 WO2010119623A1 PCT/JP2010/002031 JP2010002031W WO2010119623A1 WO 2010119623 A1 WO2010119623 A1 WO 2010119623A1 JP 2010002031 W JP2010002031 W JP 2010002031W WO 2010119623 A1 WO2010119623 A1 WO 2010119623A1
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- temperature
- time
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- welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/10—Other electric circuits therefor; Protective circuits; Remote controls
- B23K9/1006—Power supply
Definitions
- the present invention relates to a welding apparatus which generates an arc between an electrode and a base material to perform welding.
- Patent Document 1 and Patent Document 2 There is known a welding apparatus provided with a cooling fan in order to suppress an internal temperature rise (see, for example, Patent Document 1 and Patent Document 2). Inside the welding apparatus, a welding apparatus output circuit composed of a semiconductor, a transformer, a reactor and the like is provided. When the welding device operates and performs welding output, the current flows through the component members of the welding device, and these component members generate heat. In order to suppress this heat generation, a cooling fan is often used.
- the conventional welding device has a function to stop the welding output by displaying the temperature rise abnormality and operating the temperature rise abnormality detection unit in the temperature abnormality detection circuit when welding output is performed exceeding the welding rated usage rate ing.
- the temperature rise abnormality is canceled when the inside of the welding apparatus is cooled by the cooling fan and the temperature rise recovery temperature of the temperature rise abnormality detection unit is reached. Thereafter, welding output is possible.
- the temperature rise abnormality detection unit is often attached in the vicinity of a semiconductor component of an inverter circuit having a large temperature gradient (change). Therefore, there is a problem that when the welding output is resumed at the temperature rise abnormality cancellation temperature of the temperature rise abnormality detection unit attached near the semiconductor, the temperature of the parts such as a reactor with heat accumulation tends to rise gradually.
- FIG. 3A shows the temperature change in the vicinity of the semiconductor component with a large temperature gradient (change)
- FIG. 3B shows the temperature change of a heat-susceptible component such as a reactor with a small temperature gradient (change).
- a temperature rise abnormality detection unit having a large difference between the temperature rise abnormality detection temperature which makes welding output impossible and the temperature rise abnormality release temperature which enables welding output, If a high temperature condition detection unit lower than the rising abnormality detection temperature is provided, or after the temperature drops to the temperature rising abnormality cancellation temperature, a timer is additionally provided with a certain time until the welding output is enabled, and this time It is known that after the lapse of time, the temperature rise abnormality is released to enable welding output.
- the output of the three-phase AC commercial power supply is rectified in the primary rectifier circuit 1 and converted to DC power.
- the converted DC power is converted into AC power by the inverter circuit 2.
- the converted AC power is converted by the transformer 3 into AC power of a voltage suitable for arc processing.
- the converted AC power is converted to DC power by the secondary rectifier circuit 4, and is output between the torch 6 and the base material 7 through the reactor 5.
- the welding output is detected by the current detection unit 8 and the voltage detection unit 9, and is controlled to be the output setting value set before the welding output is performed.
- a cooling fan 10 is provided to suppress this temperature rise.
- the cooling fan 10 is controlled by a fan drive circuit 11.
- the conventional welding apparatus stops welding output when the temperature detected by the temperature rise abnormality detecting unit 13 becomes the temperature rise abnormal temperature by performing welding output exceeding the rated usage rate. Then, when parts in the vicinity of the temperature rise abnormality detection unit 13 in the welding apparatus are cooled by the cooling fan 10 and the temperature detected by the temperature rise abnormality detection unit 13 reaches the temperature rise abnormality release temperature T2, welding output is possible Become.
- the temperature of the semiconductor component becomes the temperature rise abnormal release temperature T2
- FIG. As described above, in the case where a component not near the temperature abnormality detection unit 13 is such that the heat is easily accumulated and the temperature gradient (change) is small as in the reactor 5, such a component has a high temperature exceeding the temperature tolerance Tlim. It remains.
- a temperature rise abnormality detection unit is separately provided which has a large difference between a temperature rise abnormality detection temperature that disables welding output and a temperature rise abnormality cancellation temperature that enables welding output.
- a high temperature state detection unit lower than the temperature rise abnormality detection temperature is provided. Also, after the temperature drops to the temperature rise anomaly release temperature, a timer is provided for a certain amount of time, and a certain amount of time is added until welding output is enabled, and the temperature rise anomaly is released after this time has elapsed. It is also known to enable welding output.
- the timer is reset and the temperature rise abnormality is not output when the temperature rise abnormality detection unit is at the return temperature when turning on the welding output while the parts with small temperature gradient such as the reactor remain in the high temperature state. There is a problem that it becomes possible.
- the present invention can avoid a high temperature state without providing a separate temperature detection unit, and can not reset the abnormality display even when the power is cut off in the middle of the temperature rise abnormality state and then reactivated.
- the welding apparatus has a clock unit having a clock function for clocking the date, a storage unit for storing the date and time counted by the timer unit, and a date and time associated with the date and time counted by the timer unit stored in the storage unit. And a control unit that performs predetermined control when it becomes.
- FIG. 1 is a view showing a schematic configuration of a welding apparatus in an embodiment of the present invention.
- FIG. 2A is a diagram showing temperature changes of semiconductor components in a welding apparatus in an embodiment of the present invention.
- FIG. 2B is a view showing temperature change of a reactor in a welding apparatus in an embodiment of the present invention.
- FIG. 3A is a view showing a temperature change of a semiconductor component in a conventional welding device.
- FIG. 3B is a view showing temperature change of the reactor in the conventional welding apparatus.
- FIG. 4 is a view showing the configuration of a conventional welding apparatus.
- FIG. 1 is a view showing a schematic configuration of a welding apparatus in the present embodiment.
- the output of a three-phase alternating current commercial power supply is rectified in a primary rectification circuit (first rectification unit) 1 and converted into DC power.
- the converted direct current power is converted into alternating current power by an inverter circuit (inverter unit) 2.
- the converted AC power is converted by a transformer 3 into AC power of a voltage suitable for arc processing.
- the converted AC power is converted to DC power by the secondary rectifier circuit (second rectifier) 4, and is output between the torch 6 and the base material 7 through the reactor 5.
- the welding output is detected by the current detection unit 8 and the voltage detection unit 9, and is controlled to be the output setting value set before the welding output is performed.
- a cooling fan 10 is provided.
- the cooling fan 10 is controlled by a fan drive circuit 11.
- the temperature rise value of the parts in the welding output circuit 14 becomes large.
- the determination unit 16 in the temperature increase abnormality control unit 12 determines that the temperature increase is abnormal.
- the welding output is stopped by stopping the operation of the inverter circuit 2 by the temperature rise abnormality control unit 12.
- the temperature rise abnormality detection unit 13 is provided in the vicinity of a semiconductor element (not shown) that constitutes the inverter circuit 2.
- the time measurement part 15 mentioned later has a clock function which measures time.
- the cooling fan 10 is controlled by a fan drive circuit 11 that operates based on the output from the temperature rise abnormality control unit 12.
- the temperature rise abnormality detection unit 13 is attached to an inverter circuit 2 or the like provided with a component having a large temperature gradient and a temperature that is not very high.
- the inverter circuit 2 is disposed on the cooling fin to improve the cooling capacity.
- the inverter circuit 2 repeatedly detects and cancels the temperature rise abnormality, and repeats the output and stop of the welding output, so that between the temperature abnormality detection temperature T1 and the temperature rise abnormality cancellation temperature T2 as shown by the broken line in FIG. 2A. Repeat the temperature change.
- the allowable temperature is also high, and the temperature gradient (change) is not larger than that of the inverter circuit 2. Therefore, the reactor 5 does not reach the saturation temperature in the first few times of the temperature rise abnormality and cancellation operations repeatedly performed based on the temperature detected by the temperature rise abnormality detector 13 provided in the vicinity of the inverter circuit 2. However, as shown by the broken line in FIG. 2B, the temperature gradually rises and approaches the saturation temperature.
- the temperature gradient of the reactor 5 is not larger than the temperature gradient of the inverter circuit 2, in the repetition cycle of the temperature rise abnormality and cancellation based on the temperature detected by the temperature rise abnormality detection unit 13 provided in the vicinity of the inverter circuit 2. , Not cooled enough.
- a stop time longer than the temperature drop from the temperature anomaly detection temperature T1 to the temperature rise anomaly release temperature T2 is set, and the welding output can not be made until this suspension time elapses using a counter etc. Conceivable.
- the timer unit 15 having a clock function for clocking the date and time is provided, and the date and time when the temperature rise abnormality detection temperature T1 is reached is stored in the storage unit 17 in the temperature rise abnormality control unit 12. That is, when the temperature rise abnormality detection temperature T1 is reached, the time (date and time) at that time is output from the timer unit 15 having the information of year, month, day, hour, minute and second to the temperature rise abnormality control unit 12.
- the storage unit 17 stores the date and time counted by the clock unit 15 in association with the abnormality history of the device.
- the temperature rise abnormality control unit 12 measures the temperature rise abnormality until the time (date and time) when the reactor 5 reaches the safe temperature is added to the time from the temperature rise abnormality detection temperature T1 to the temperature rise abnormality release temperature T2 Control not to release the
- the time T in which the time for the reactor 5 to reach a safe temperature is added to the time from the temperature rise abnormality detection temperature T1 to the temperature rise abnormality release temperature T2, is obtained in advance by experiment etc. It is stored in the stop time storage unit 18 in the abnormality control unit 12.
- the stop time storage unit 18 may be provided anywhere in the welding apparatus without being provided in the temperature rise abnormality control unit 12.
- the temperature rise abnormality cancellation time is not counted as in the counter, and the recovery time (date and time) of the temperature rise abnormality is determined. If the power is turned on again after the power is turned off, and the temperature rise abnormality recovery time has not come when the power is turned on again, it is possible to continue the state where the welding output can not be performed as the temperature rise abnormality. That is, from the time t1 when the temperature detected by the temperature rise abnormality detection unit 13 reaches the temperature rise abnormality detection temperature T1, until the time t2 when time T is added to the time t1, the detection temperature by the temperature rise abnormality detection unit 13 is Even when the temperature rise abnormal release temperature T2 is reached, the state in which the welding output can not be performed is continued. This allows the temperature of the reactor 5 to be sufficiently low. Further, by providing the clock unit 15 having a clock function, it is possible to determine whether or not welding output is possible based on time (date and time).
- the welding apparatus includes the timer unit 15 for clocking date, month, day, hour, and minute information, and stores the date, hour, hour, and second information at the time of temperature rise abnormality detection in association with an abnormality history.
- the abnormality release as information such as the time (date and time) after several minutes, a high temperature state can be avoided without providing a separate temperature detection unit.
- the abnormality display can be prevented from being reset, and the cost is reduced. Welding device can be realized.
- the following things can also be implement
- the date when the welding apparatus was shipped from the factory to the user is stored in the storage unit 17 in association with the fact of shipping.
- the time measuring unit 15 measures the date and time after shipment, and when a predetermined date and time has passed from the date and time of shipment, displays a message on the display unit (not shown) to prompt the user to clean the inside of the welding apparatus. It can also encourage cleaning.
- the welding apparatus of this invention can know the time of abnormality log
- the present invention can improve safety even when an abnormal situation occurs, and therefore is industrially useful as a welding apparatus used for arc welding and the like.
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- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding Control (AREA)
- Generation Of Surge Voltage And Current (AREA)
Abstract
Description
以下、本発明の実施の形態について、図1と図2を用いて説明する。図1は、本実施の形態における溶接装置の概略構成を示す図である。図1において、三相交流商用電源の出力を一次整流回路(第1の整流部)1において整流して直流電力に変換する。変換された直流電力をインバータ回路(インバータ部)2により交流電力に変換する。変換された交流電力をトランス(変圧器)3によりアーク加工に適した電圧の交流電力に変換する。この変換した交流電力を二次整流回路(第2の整流部)4で直流電力に変換し、リアクタ5を通じてトーチ6と母材7との間に出力する。なお、溶接出力は、電流検出部8と電圧検出部9により検出され、溶接出力を行う前に設定した出力設定値になるように制御される。
2 インバータ回路
3 トランス
4 二次整流回路
5 リアクタ
6 トーチ
7 母材
8 電流検出部
9 電圧検出部
10 冷却ファン
11 ファン駆動回路
12 温度上昇異常制御部
13 温度上昇異常検出部
14 溶接出力回路
15 計時部
16 判断部
17 記憶部
18 停止時間記憶部
Claims (5)
- 日時を計時する時計機能を有する計時部と、前記計時部で計時した日時を記憶する記憶部と、前記計時部で計時した日時が前記記憶部に記憶した日時に関連付けられた日時になったときに所定の制御を行なう制御部とを備えた溶接装置。
- 前記計時部で計時した日時が、装置の異常履歴または前記装置の出荷と対応付けて記憶部に記憶された請求項1記載の溶接装置。
- 前記記憶部に前記装置の出荷日時が記憶され、前記計時部で計時した日時が、前記出荷日時から所定日時が経過した場合に、表示部に装置内の清掃を促す旨を表示する請求項2記載の溶接装置。
- 前記溶接装置内の温度を検出する温度検出部と、前記温度検出部が検出した温度が予め決められた温度上昇閾値を超えたか否かを判断する判断部と、前記温度検出部で検出した温度が前記温度上昇閾値を超えた日時から溶接出力の停止を継続する時間を記憶する停止時間記憶部とをさらに備え、前記記憶部は、前記判断部で前記温度検出部が検出した温度が前記温度上昇閾値を超えたと判断した時の日時を記憶し、前記制御部は、前記記憶部が記憶された、前記温度検出部で検出した温度が前記温度上昇閾値を超えた日時に、前記停止時間記憶部に記憶された時間を加えた日時を経過してない場合には、前記装置の溶接出力の禁止を継続する請求項1記載の溶接装置。
- 前記計時部が計時する日時は、少なくとも、年と月と日と時間を含む請求項1に記載の溶接装置。
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JP2010534165A JPWO2010119623A1 (ja) | 2009-04-16 | 2010-03-23 | 溶接装置 |
CN2010800014752A CN102015187A (zh) | 2009-04-16 | 2010-03-23 | 焊接装置 |
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JP2009-099822 | 2009-04-16 | ||
JP2009099822 | 2009-04-16 |
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PCT/JP2010/002031 WO2010119623A1 (ja) | 2009-04-16 | 2010-03-23 | 溶接装置 |
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CN (1) | CN102015187A (ja) |
WO (1) | WO2010119623A1 (ja) |
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JP2013184192A (ja) * | 2012-03-08 | 2013-09-19 | Daihen Corp | 溶接電源の保護制御方法 |
CN112518157A (zh) * | 2020-11-25 | 2021-03-19 | 中国航空工业集团公司沈阳飞机设计研究所 | 一种高速射流增材修复铝合金结构温度控制方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03111461U (ja) * | 1990-02-22 | 1991-11-14 | ||
JP2000042738A (ja) * | 1998-07-29 | 2000-02-15 | Toshiba Plant Kensetsu Co Ltd | 多台ヘッド自動溶接システム |
JP2002066738A (ja) * | 2000-08-24 | 2002-03-05 | Daihen Corp | アーク加工溶接機のファン制御方法及び制御装置 |
JP2007309583A (ja) * | 2006-05-18 | 2007-11-29 | Toshiba Kyaria Kk | 天井埋込型空気調和機 |
Family Cites Families (3)
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JPH08286725A (ja) * | 1995-04-13 | 1996-11-01 | Miyachi Technos Corp | 抵抗溶接用又はレーザ加工用端末ユニット、抵抗溶接又はレーザ加工制御装置、端末ユニット稼働方法 |
JP4857534B2 (ja) * | 2004-07-13 | 2012-01-18 | パナソニック株式会社 | アーク溶接ロボット |
CN101374626B (zh) * | 2007-03-07 | 2013-10-09 | 松下电器产业株式会社 | 焊接装置 |
-
2010
- 2010-03-23 JP JP2010534165A patent/JPWO2010119623A1/ja active Pending
- 2010-03-23 CN CN2010800014752A patent/CN102015187A/zh active Pending
- 2010-03-23 WO PCT/JP2010/002031 patent/WO2010119623A1/ja active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03111461U (ja) * | 1990-02-22 | 1991-11-14 | ||
JP2000042738A (ja) * | 1998-07-29 | 2000-02-15 | Toshiba Plant Kensetsu Co Ltd | 多台ヘッド自動溶接システム |
JP2002066738A (ja) * | 2000-08-24 | 2002-03-05 | Daihen Corp | アーク加工溶接機のファン制御方法及び制御装置 |
JP2007309583A (ja) * | 2006-05-18 | 2007-11-29 | Toshiba Kyaria Kk | 天井埋込型空気調和機 |
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CN102015187A (zh) | 2011-04-13 |
JPWO2010119623A1 (ja) | 2012-10-22 |
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