CN102015187A - Welding machine - Google Patents
Welding machine Download PDFInfo
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- CN102015187A CN102015187A CN2010800014752A CN201080001475A CN102015187A CN 102015187 A CN102015187 A CN 102015187A CN 2010800014752 A CN2010800014752 A CN 2010800014752A CN 201080001475 A CN201080001475 A CN 201080001475A CN 102015187 A CN102015187 A CN 102015187A
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- 238000003466 welding Methods 0.000 title claims abstract description 123
- 230000005856 abnormality Effects 0.000 claims description 81
- 238000001514 detection method Methods 0.000 claims description 64
- 238000003860 storage Methods 0.000 claims description 30
- 238000004140 cleaning Methods 0.000 claims description 7
- 230000002159 abnormal effect Effects 0.000 description 33
- 238000001816 cooling Methods 0.000 description 13
- 239000004065 semiconductor Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000003754 machining Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000012217 deletion Methods 0.000 description 1
- 230000037430 deletion Effects 0.000 description 1
- 230000010259 detection of temperature stimulus Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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Classifications
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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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding Control (AREA)
- Generation Of Surge Voltage And Current (AREA)
Abstract
A welding machine is provided with a control unit (12) having a timer section (15) for counting the time and date and a memory section (17) for storing the time and date counted by the timer section (15). The control unit (12) starts a predetermined controlling operation to avoid excessive temperature when the counting of the timer section coincides with the time and date that associate with the time and date stored in the memory section (17) thereby eliminating the need of a temperature sensor.
Description
Technical Field
The present invention relates to a welding apparatus for generating an arc between an electrode and a base material to perform welding.
Background
As is well known, a welding apparatus includes a cooling fan for suppressing an increase in internal temperature (see, for example, patent documents 1 and 2). Inside the welding apparatus, a welding apparatus output circuit composed of a semiconductor, a transformer, a reactor (reactor), and the like is provided. When the welding apparatus is operated and welding output is performed, a current flows through the components of the welding apparatus, which causes the components to generate heat. In order to suppress this heat generation, a cooling fan is often used.
A conventional welding apparatus has a function of, when welding output is performed beyond a welding rated usage rate, operating a temperature rise abnormality detection unit in a temperature abnormality detection circuit, displaying a temperature rise abnormality, and stopping the welding output. The interior of the welding apparatus is cooled by a cooling fan, and if the temperature reaches the operation recovery temperature of the temperature rise abnormality detection unit, the temperature rise abnormality is cancelled. Then, the welding output is enabled.
The abnormal temperature rise detecting unit is often mounted in the vicinity of a semiconductor component of an inverter circuit (inverter circuit) having a large temperature gradient (variation). Therefore, in the case of a heat-concentrating member such as a reactor, when the welding output is restarted by canceling the temperature of the temperature increase abnormality detection unit mounted in the vicinity of the semiconductor, the temperature gradually increases. Fig. 3A shows a temperature change in the vicinity of a semiconductor component in which a temperature gradient (change) is large, and fig. 3B shows a temperature change in a heat-concentrating-prone component such as a reactor in which a temperature gradient (change) is small.
As a method for solving this problem, there are known: a temperature rise abnormality detection unit for detecting a temperature rise abnormality in which welding output is not possible, and for detecting a temperature rise abnormality in which welding output is possible; or a high temperature rise abnormality detection unit which is lower than the temperature rise abnormality detection temperature; or after the temperature is reduced to the abnormal temperature rise removing temperature, a certain extra time is set by a timer until welding output can be carried out, and after the time, the abnormal temperature rise is removed to enable welding output.
Here, a conventional welding apparatus will be described with reference to fig. 4. The primary rectifier circuit 1 rectifies the output of the three-phase ac commercial power supply and converts the rectified output into dc power. The converted direct current is converted into alternating current by the inverter circuit 2. The converted alternating current is converted into alternating current of a voltage suitable for arc machining by a transformer 3. The secondary rectifier circuit 4 converts the converted alternating current into direct current, and outputs the direct current to a gap between a welding torch (torch)6 and a base material 7 through a reactor 5. The current detection unit 8 and the voltage detection unit 9 detect the welding output, and control the welding output to an output set value set before the welding output.
When the welding output is output, the temperature of the components in welding output circuit 14 rises. In order to suppress this temperature rise, a cooling fan 10 is provided. The cooling fan 10 is controlled by a fan drive circuit 11.
In fig. 3A, when the welding output exceeds the rated output and is output, the temperature increase value of the components in welding output circuit 14 increases, and when the detected temperature of temperature increase abnormality detection unit 13 exceeds set temperature abnormality detection temperature T1, it is determined that the temperature increase is abnormal, and operation of inverter circuit 2 is stopped by temperature increase abnormality control unit 12, thereby stopping the welding output.
In the conventional welding apparatus, when the welding output is performed in excess of the rated use ratio and the detected temperature of the abnormal temperature rise detection unit 13 becomes an abnormal temperature rise, the welding output is stopped. The cooling fan 10 cools the components in the vicinity of the abnormal temperature rise detection unit 13 in the welding apparatus, and when the temperature detected by the abnormal temperature rise detection unit 13 reaches the abnormal temperature rise cancellation temperature T2, welding output can be performed. Here, even if the temperature of the semiconductor component becomes the temperature rise abnormality release temperature T2, if the component not close to the temperature abnormality detection unit 13 is a component such as the reactor 5 which is likely to collect heat and has a small temperature gradient (change), as shown in fig. 3B, during a period in which the stop of the welding output at the temperature rise abnormality temperature and the start of the welding output at the temperature rise abnormality release temperature are repeated, such a component is kept in a high temperature state exceeding the temperature allowable value Tlim.
In order to cope with this problem, a temperature rise abnormality detection unit is provided which has a large difference between a temperature rise abnormality detection temperature at which welding output is not possible and a temperature rise abnormality cancellation temperature at which welding output is possible. Further, a high temperature state detection unit lower than the temperature rise abnormality detection temperature may be provided. After the temperature is decreased to the temperature rise abnormality release temperature, a certain extra time until the welding output is enabled may be set by a timer, and after the time has elapsed, the temperature rise abnormality may be released and the welding output may be enabled.
However, when the temperature abnormality detection unit or the high temperature state detection unit is separately provided, the cost becomes high, and when the temperature abnormality detection unit cannot be mounted at a position where the temperature abnormality detection unit is desired, there is a problem that the processing cannot be dealt with.
Further, when the power supply of the welding apparatus is once turned off and then turned on after the operation is resumed until the temperature-rise abnormality-canceling temperature is fallen, if a certain amount of time is set by a timer until the welding output is enabled, the timer is reset to disable the output of the temperature-rise abnormality when the temperature-rise abnormality detection unit reaches the restoration temperature, and therefore, the components having a small temperature gradient such as the reactor are kept in a high-temperature state, which causes a problem of the weldable output.
Patent document 1: japanese laid-open patent publication No. 2002-
Patent document 2: japanese patent laid-open No. 2008-805
Disclosure of Invention
The invention provides a welding device which can avoid a high temperature state without additionally arranging a temperature detection part and can prevent an abnormal display from being reset even if a power supply is switched on after the power supply is switched off in the process of an abnormal temperature rise state.
The welding device of the invention is composed of: a timepiece function having a time counting unit for counting the date and time; a storage unit that stores the date and time measured by the time measuring unit; and a control unit that performs a predetermined control when the date and time measured by the time measuring unit is the date and time associated with the date and time stored in the storage unit.
According to the above configuration, a high temperature state can be avoided without separately providing a temperature detection unit. Further, even when the power supply of the welding apparatus is turned off and turned on again in the middle of the abnormal state of temperature rise in the case where a certain amount of time is required until the abnormality is resolved, the abnormality display can be prevented from being reset, and therefore, a low-cost and safe welding apparatus can be realized.
Drawings
Fig. 1 is a diagram showing a schematic configuration of a welding apparatus according to an embodiment of the present invention.
Fig. 2A is a diagram showing a temperature change of a semiconductor component in a soldering apparatus according to an embodiment of the present invention.
Fig. 2B is a diagram showing a temperature change of a reactor in the welding apparatus according to the embodiment of the present invention.
Fig. 3A is a diagram showing a temperature change of a semiconductor component in a conventional soldering apparatus.
Fig. 3B is a diagram showing a temperature change of a reactor in a conventional welding apparatus.
Fig. 4 is a diagram showing a structure of a conventional welding apparatus.
In the figure, 1-a primary rectifier circuit, 2-an inverter circuit, 3-a transformer, 4-a secondary rectifier circuit, 5-a reactor, 6-a welding torch, 7-a base metal, 8-a current detection portion, 9-a voltage detection portion, 10-a cooling fan, 11-a fan drive circuit, 12-a temperature rise abnormality control portion, 13-a temperature rise abnormality detection portion, 14-a welding output circuit, 15-a timer portion, 16-a determination portion, 17-a storage portion, and 18-a stop time storage portion.
Detailed Description
(embodiment mode)
An embodiment of the present invention will be described with reference to fig. 1 and 2. Fig. 1 is a diagram showing a schematic configuration of a welding apparatus according to the present embodiment. In fig. 1, the output of a three-phase ac commercial power supply is rectified and converted into dc power in a primary rectifier circuit (rectifier 1). The converted direct current is converted into alternating current through an inverter circuit (inverter section) 2. The converted alternating current is converted into alternating current of a voltage suitable for arc machining by a transformer 3. The converted alternating current is converted into direct current by a secondary rectifier circuit (2 nd rectifier unit) 4, and is output between the welding torch 6 and the base material 7 through a reactor 5. The welding output is detected by the current detection portion 8 and the voltage detection portion 9, and the welding output is controlled to an output set value that has been set before the welding output is performed.
When the welding output is output, a current flows through the components in welding output circuit 14, and the temperature of the components rises. In order to suppress this temperature rise, a cooling fan 10 is provided. Here, the cooling fan 10 is controlled by a fan drive circuit 11.
When the welding output exceeds the rated output and is output by setting the welding device by the welding operator, the temperature rise value of the components in the welding output circuit 14 increases. If the temperature rise value exceeds a temperature abnormality detection temperature T1 set by the detection temperature of the temperature rise abnormality detection unit (temperature detection unit) 13, the determination unit 16 in the temperature rise abnormality control unit 12 determines that the temperature rise is abnormal, and the temperature rise abnormality control unit 12 stops the operation of the inverter circuit 2, thereby stopping the welding output. The abnormal temperature rise detection unit 13 is provided in the vicinity of a semiconductor element (not shown) constituting the inverter circuit 2. The timer 15 described later has a clock function of counting time.
Hereinafter, an operation in the case where an abnormal temperature increase occurs will be described with respect to the welding apparatus of the present embodiment configured as described above. When the welding output exceeds the rated output and is output, the temperature rise value of the components in welding output circuit 14 increases. As shown in fig. 2A, when the temperature detected by the abnormal temperature rise detection unit 13 exceeds the abnormal temperature rise detection temperature T1 set in advance, the determination unit 16 in the abnormal temperature rise control unit 12 determines that the temperature rise is abnormal, and the abnormal temperature rise control unit 12 stops the operation of the inverter circuit 2. Thereby, the welding output of the welding apparatus is stopped. While the welding output is stopped, the components in the welding output circuit 14 are cooled by the cooling fan 10. Next, when the temperature detected by the abnormal temperature rise detection unit 13 reaches the preset abnormal temperature rise cancellation temperature T2 shown in fig. 2A, the abnormal temperature rise is cancelled, and the output can be welded. Here, the cooling fan 10 is controlled by the fan drive circuit 11, and the fan drive circuit 11 operates based on an output from the abnormal temperature rise control unit 12.
In general, the abnormal temperature rise detection unit 13 is mounted on the inverter circuit 2 or the like having a component having a large temperature gradient but not having a high allowable temperature. The inverter circuit 2 is disposed on a cooling fin to improve cooling capacity. The inverter circuit 2 repeats detection and release of the temperature rise abnormality and output and stop of the welding output, and thus repeats temperature change between the temperature abnormality detection temperature T1 and the temperature rise abnormality release temperature T2 as shown by the broken line in fig. 2A.
On the other hand, the reactor 5 and the like also have a high allowable temperature, 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 repeating the operation of abnormality and cancellation of the temperature increase based on the temperature detected by the temperature increase abnormality detection unit 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.
In addition, since the temperature gradient of the reactor 5 is not larger than the temperature gradient of the inverter circuit 2, the reactor 5 cannot be sufficiently cooled in a cycle of temperature rise abnormality and cancellation repeatedly performed based on the detected temperature of the temperature rise abnormality detecting portion 13 provided in the vicinity of the inverter circuit 2.
There is no problem if the saturation temperature of the reactor 5 is lower than the temperature allowable value of the reactor 5. However, as shown in fig. 2B, when saturation is reached at a temperature higher than the temperature of the allowable temperature value Tlim, it is necessary to prevent the temperature of the reactor 5 from becoming the allowable temperature value Tlim. In order to lower the temperature of the reactor 5, after the temperature rise abnormality detection unit 13 detects a temperature rise abnormality and stops the welding output, it is necessary to cool the reactor 5 by ensuring a time longer than the time until the temperature detected by the temperature rise abnormality detection unit 13 reaches the temperature rise abnormality release temperature T2.
Here, it is considered that a stop time longer than a time for which the temperature decreases from the temperature abnormality detection temperature T1 to the temperature increase abnormality removal temperature T2 is set, and the welding output cannot be performed until the stop time elapses, using a counter or the like.
However, when the power switch (switch unit) of the welding apparatus is turned off and then turned on, the counter is reset, and the stop time cannot be counted. Therefore, when the power supply of the welding apparatus is turned on again, welding output can be performed as long as the detected temperature of the temperature increase abnormality detection unit 13 is lower than the temperature increase abnormality release temperature T2, and welding output can be performed even if the temperature of the reactor 5 is not sufficiently low. Therefore, a problem occurs in that a current flows through the reactor 5, and the temperature of the reactor 5 rises.
Here, in the present embodiment, the time counting unit 15 having a clock function of counting the date and time is provided, and the date and time at which 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 (date and time), the time at that time is output from the timer unit 15 having information of year, month, day, hour, minute, second to the temperature rise abnormality control unit 12, and is stored in the nonvolatile storage unit 17. At this time, the storage unit 17 stores the date and time measured by the time measuring unit 15 in association with the device abnormality history. The temperature-rise abnormality control unit 12 controls the temperature-rise abnormality not to be resolved until a time (date and time) obtained by adding a time at which the reactor 5 reaches the safety temperature to a time (date and time) from a time at which the temperature-rise abnormality detection temperature T1 reaches the temperature-rise abnormality resolving temperature T2. The time T obtained by adding the time from the temperature rise abnormality detection temperature T1 to the temperature rise abnormality release temperature T2 to the time at which the reactor 5 reaches the safety temperature can be obtained in advance by an experiment or the like and stored in advance in the stop time storage unit 18 in the temperature rise abnormality control unit 12.
Then, when the time T stored in the stop time storage unit 18 from the time when the temperature rise abnormality detection temperature T1 is reached coincides with the time counted by the timer unit 15, the temperature rise abnormality control unit 12 cancels the temperature rise abnormality and performs welding output. The stop time storage unit 18 may be provided at any position in the welding apparatus, even if not provided in the abnormal temperature rise control unit 12.
As described above, according to the present embodiment, even if the temperature rise abnormality release time is not counted as in the counter, and the recovery time (date and time) of the temperature rise abnormality is determined, it is possible to continue the state in which the welding output is not possible as the temperature rise abnormality if the power supply is turned on again at the time when the power supply of the welding apparatus is turned off and then on again during the temperature rise abnormality period if the recovery time of the temperature rise abnormality is not reached. That is, from time T1 when the detected temperature of the abnormal temperature rise detection unit 13 reaches the abnormal temperature rise detection temperature T1 to time T2 when the time T is added to the time T1, the welding output is kept disabled even when the detected temperature of the abnormal temperature rise detection unit 13 becomes the abnormal temperature rise cancellation temperature T2. This can reduce the temperature of the reactor 5 to a sufficiently low temperature. Further, by providing the timer unit 15 having a clock function, it is possible to determine whether or not welding output is possible based on the time (date and time).
As described above, the welding apparatus according to the present embodiment is provided with the timer unit 15 for counting the year, month, day, hour, minute and second information, stores the year, month, day, minute and second information at the time of abnormality detection of temperature rise as the abnormality history in association with each other, and handles the abnormality as information of the time (date and time) after several minutes, thereby avoiding a high temperature state without separately providing a temperature detection unit. Further, in the case where a certain amount of time is required until the abnormality is resolved, even when the power supply of the welding apparatus is turned off and then turned on again in the middle of the abnormal state of the temperature rise, the abnormality display can be prevented from being reset, and therefore, a low-cost and safe welding apparatus can be realized.
In addition, the welding apparatus of the present embodiment can realize the following by providing the timepiece part 15 having a timepiece function. That is, the time for shipping the welding apparatus from the factory to the user is stored in the storage unit 17 in accordance with the fact that the welding apparatus is shipped from the factory. The timer unit 15 counts the date and time from the shipment of the welding apparatus, and when a predetermined date and time has elapsed from the shipment of the welding apparatus, information indicating that cleaning of the inside of the welding apparatus is to be urged is displayed on a display unit, not shown, thereby urging the user to clean the welding apparatus. In this case, by storing the time of power-on first after shipment in the storage unit 17, cleaning maintenance can be periodically urged based on the time of power-on. Further, by storing the first power-on time after cleaning in the storage unit 17, it is possible to periodically urge an appropriate timing for cleaning.
As described above, the welding apparatus according to the present invention is provided with the timer unit having information on the time in the year, month, day, hour, minute and second, and thereby can know the time of the abnormality history. Therefore, in an abnormal state in which the welding apparatus needs to be stopped for a certain period of time even when the switch of the welding apparatus is turned off halfway, the abnormality cancellation timing can be set. Therefore, safety can be improved. Further, by providing a timer unit having information on the time, minute, second, month, day, and hour, cleaning of the inside of the welding apparatus can be promoted.
Industrial applicability of the invention
The present invention can improve safety even when an abnormal situation occurs, and therefore, it is industrially effective as a welding apparatus used for arc welding or the like.
The claims (modification according to treaty clause 19)
(modified) a welding device, comprising:
a time counting unit having a clock function for counting date and time;
a storage unit that stores the date and time measured by the time measuring unit; and
a control unit for performing a predetermined control when the date and time measured by the time measuring unit is the date and time associated with the date and time stored in the storage unit,
the welding device is characterized by further comprising:
a temperature detection unit for detecting a temperature in the welding apparatus;
a determination unit configured to determine whether or not the temperature detected by the temperature detection unit exceeds a predetermined temperature increase threshold; and
a stop time storage unit for storing a time for continuing to stop the welding output from the date and time when the temperature detected by the temperature detection unit exceeds the temperature rise threshold,
wherein,
the storage unit stores the date and time when the judging unit judges that the temperature detected by the temperature detecting unit exceeds the temperature increase threshold,
the control unit continues to prohibit the welding output of the welding apparatus even when the welding apparatus is turned on after the power supply of the welding apparatus is turned off, in a case where the date and time stored in the storage unit, obtained by adding the date and time, which is stored in the storage unit and at which the temperature detected by the temperature detection unit exceeds the temperature increase threshold, to the time stored in the stop time storage unit, has not yet elapsed.
2. The welding device of claim 1, wherein:
the date and time measured by the time measuring unit is stored in the storage unit in association with the abnormality history of the apparatus or shipment of the apparatus.
3. The welding device of claim 2, wherein:
the date and time of shipment of the device is stored in the storage unit, and when the date and time measured by the time measuring unit has elapsed from the date and time of shipment by a predetermined date and time, information for urging cleaning of the inside of the device is displayed on the display unit.
(deletion)
5. Welding device according to claim 1,
the date and time measured by the time measuring unit includes at least year, month, day and time.
Claims (5)
1. A welding device is characterized by comprising:
a time counting unit having a clock function for counting date and time;
a storage unit that stores the date and time measured by the time measuring unit; and
and a control unit that performs a predetermined control when the date and time measured by the time measuring unit is the date and time associated with the date and time stored in the storage unit.
2. The welding device of claim 1, wherein:
the date and time measured by the time measuring unit is stored in the storage unit in association with the abnormality history of the apparatus or shipment of the apparatus.
3. The welding device of claim 2, wherein:
the date and time of shipment of the device is stored in the storage unit, and when the date and time measured by the time measuring unit has elapsed from the date and time of shipment by a predetermined date and time, information for urging cleaning of the inside of the device is displayed on the display unit.
4. Welding device according to claim 1,
the welding device further includes:
a temperature detection unit for detecting a temperature in the welding apparatus;
a determination unit configured to determine whether or not the temperature detected by the temperature detection unit exceeds a predetermined temperature increase threshold; and
a stop time storage unit for storing a time for continuing to stop the welding output from the date and time when the temperature detected by the temperature detection unit exceeds the temperature rise threshold,
wherein,
the storage unit stores the date and time when the judging unit judges that the temperature detected by the temperature detecting unit exceeds the temperature increase threshold,
the control unit continues to prohibit the welding output of the device when the date and time stored in the storage unit, obtained by adding the date and time at which the temperature detected by the temperature detection unit exceeded the temperature increase threshold to the time stored in the stop time storage unit, has not elapsed.
5. Welding device according to claim 1,
the date and time measured by the time measuring unit includes at least year, month, day and time.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009099822 | 2009-04-16 | ||
| JP2009-099822 | 2009-04-16 | ||
| PCT/JP2010/002031 WO2010119623A1 (en) | 2009-04-16 | 2010-03-23 | Welding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102015187A true CN102015187A (en) | 2011-04-13 |
Family
ID=42982298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010800014752A Pending CN102015187A (en) | 2009-04-16 | 2010-03-23 | Welding machine |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPWO2010119623A1 (en) |
| CN (1) | CN102015187A (en) |
| WO (1) | WO2010119623A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103302376A (en) * | 2012-03-08 | 2013-09-18 | 株式会社大亨 | Method for protecting and control welding power |
| CN112518157A (en) * | 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 | Temperature control method for high-speed jet material increase repair of aluminum alloy structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1140642A (en) * | 1995-04-13 | 1997-01-22 | 宫地技术株式会社 | Terminal unit for resistance welding or laser beam processing control apparatus for resistance welding or laser beam processing, and method for operating terminal unit |
| JP2000042738A (en) * | 1998-07-29 | 2000-02-15 | Toshiba Plant Kensetsu Co Ltd | Multi-heads automatic welding system |
| JP2002066738A (en) * | 2000-08-24 | 2002-03-05 | Daihen Corp | Control method and device for fan of arc working welding machine |
| CN1984743A (en) * | 2004-07-13 | 2007-06-20 | 松下电器产业株式会社 | Arc welding robot |
| CN101374626A (en) * | 2007-03-07 | 2009-02-25 | 松下电器产业株式会社 | Welding device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2549289Y2 (en) * | 1990-02-22 | 1997-09-30 | 株式会社ダイヘン | Arc processing equipment |
| JP2007309583A (en) * | 2006-05-18 | 2007-11-29 | Toshiba Kyaria Kk | Ceiling-embedded air conditioner |
-
2010
- 2010-03-23 CN CN2010800014752A patent/CN102015187A/en active Pending
- 2010-03-23 WO PCT/JP2010/002031 patent/WO2010119623A1/en active Application Filing
- 2010-03-23 JP JP2010534165A patent/JPWO2010119623A1/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1140642A (en) * | 1995-04-13 | 1997-01-22 | 宫地技术株式会社 | Terminal unit for resistance welding or laser beam processing control apparatus for resistance welding or laser beam processing, and method for operating terminal unit |
| JP2000042738A (en) * | 1998-07-29 | 2000-02-15 | Toshiba Plant Kensetsu Co Ltd | Multi-heads automatic welding system |
| JP2002066738A (en) * | 2000-08-24 | 2002-03-05 | Daihen Corp | Control method and device for fan of arc working welding machine |
| CN1984743A (en) * | 2004-07-13 | 2007-06-20 | 松下电器产业株式会社 | Arc welding robot |
| CN101374626A (en) * | 2007-03-07 | 2009-02-25 | 松下电器产业株式会社 | Welding device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103302376A (en) * | 2012-03-08 | 2013-09-18 | 株式会社大亨 | Method for protecting and control welding power |
| CN103302376B (en) * | 2012-03-08 | 2016-07-06 | 株式会社大亨 | The protection control method of the source of welding current |
| CN112518157A (en) * | 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 | Temperature control method for high-speed jet material increase repair of aluminum alloy structure |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2010119623A1 (en) | 2010-10-21 |
| JPWO2010119623A1 (en) | 2012-10-22 |
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Application publication date: 20110413 |