CN106862731B - DC pulse argon arc welding machine - Google Patents
DC pulse argon arc welding machine Download PDFInfo
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- CN106862731B CN106862731B CN201710092695.4A CN201710092695A CN106862731B CN 106862731 B CN106862731 B CN 106862731B CN 201710092695 A CN201710092695 A CN 201710092695A CN 106862731 B CN106862731 B CN 106862731B
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- 238000003466 welding Methods 0.000 title claims abstract description 119
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 title claims abstract description 86
- 229910052786 argon Inorganic materials 0.000 title claims abstract description 43
- 238000010891 electric arc Methods 0.000 claims abstract description 19
- 239000004973 liquid crystal related substance Substances 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 5
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 4
- 239000010937 tungsten Substances 0.000 claims description 4
- 229910052721 tungsten Inorganic materials 0.000 claims description 4
- 230000004044 response Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 16
- 230000008569 process Effects 0.000 abstract description 14
- 230000010355 oscillation Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 230000036651 mood Effects 0.000 abstract description 3
- NGONBPOYDYSZDR-UHFFFAOYSA-N [Ar].[W] Chemical compound [Ar].[W] NGONBPOYDYSZDR-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000010953 base metal Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 206010057040 Temperature intolerance Diseases 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000008543 heat sensitivity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- 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
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/167—Arc welding or cutting making use of shielding gas and of a non-consumable electrode
-
- 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
- B23K9/32—Accessories
Abstract
The invention discloses a direct-current pulse argon arc welding machine, which comprises a controller and an electrode needle, wherein the electrode needle is arranged on the controller; the controller is provided with a memory; one or more music scores, a note frequency corresponding table and a beat duration corresponding table are stored in the memory; after the arc is generated between the electrode needle and the workpiece, the controller controls the frequency of the arc pulse current between the electrode needle and the workpiece and maintains the duration of the corresponding frequency to be consistent with the frequency and the beat corresponding to the music score notes stored in the selected memory. According to the direct-current pulse argon arc welding machine, the electric arc pulse current changes according to notes and beats of a selected music score in the welding process, the oscillation of the electric arc pulse current can make corresponding sound, music playing is achieved, and a welder can enjoy the mood and the welding effect is not influenced when the direct-current pulse argon arc welding machine is used for welding.
Description
Technical Field
The invention relates to a welding technology, in particular to a direct-current pulse argon arc welding machine.
Background
P-TIG is short for Pulsed-TIG and represents Pulsed tungsten argon arc welding. The pulse argon tungsten-arc welding is a method for welding by using welding power supply to provide pulse current which can be changed according to a certain rule to electric arc, and its welding process is characterized by that it uses basic current to maintain stable combustion of electric arc, and uses controllable pulse current to heat and melt workpiece, every pulse forms a point molten pool, and the pulse gap molten pool is solidified into welding point, and when the next pulse current is used, on the partially solidified welding point a portion of filling metal and base metal are molten to form new molten pool, and the welding points which are mutually overlapped can be obtained by means of regulation of welding speed and pulse gap so as to obtain continuous welding seam.
The pulse tungsten argon arc welding controls the size of heat input quantity by adjusting parameters such as pulse frequency, pulse width ratio, pulse current value and the like to control the volume of a molten pool, the penetration and the size of a heat affected zone, and finally achieves perfect weld forming.
Argon arc welding in which a welding power supply outputs an uneven current varying at a certain rule to an electric arc is called pulsed tungsten argon arc welding. That is, continuous and uninterrupted base current (also called pilot arc current) is used to maintain the ionization channel of the main arc, and a pulse current with high peak value and same polarity is periodically applied to generate pulse arc for melting metal and controlling the transition of molten drop, so as to achieve the purpose of welding.
The principle of the pulsed tungsten argon arc welding is as follows: one molten pool is generated in the arc action zone each time the pulse current is acted. The pulse gap, the molten pool solidifies to form a welding wave only under the action of pilot arc current. When the next pulse current is applied, a second weld pool is created over a portion of the area of the solidified welding wave and the base metal, and when the second pulse gap occurs, the weld pool solidifies again into a second welding wave and overlaps the previous welding wave. This is done in cycles to form a weld joint with a plurality of weld beads overlapping each other.
The pulse tungsten electrode argon arc welding is characterized in that:
(1) the method can accurately control the heat input to the workpiece and the size of the molten pool, improve the anti-burn-through of the welding line and the protection capability of the molten pool, easily obtain uniform fusion depth, and is particularly suitable for all-position welding and single-side welding double-sided forming of thin plates (as thin as 0.1 mm).
(2) Each welding point is heated and cooled rapidly, so that the welding machine is suitable for welding workpieces with large differences of heat conduction performance and thickness.
(3) The pulse arc can obtain larger penetration with lower heat input, so that the welding heat affected zone and welding deformation can be reduced under the same condition, which is particularly important for welding thin plates and ultrathin plates.
(4) The molten pool metal is condensed quickly in the welding process, the high-temperature retention time is short, and the tendency of generating cracks in the welding process of the heat-sensitive material can be reduced.
The direct current pulse argon arc welding is an advanced welding technology with high quality, high efficiency and energy saving, and is suitable for welding thin plates, all-position pipeline welding, high-speed welding and welding materials with strong heat sensitivity. The direct current pulse argon arc welding adopts controllable pulse current to heat a workpiece, the welding process is an intermittent heating process, a welding seam is formed by overlapping a molten pool, when the pulse current passes each time, the workpiece is heated and melted to form a molten pool, when the base value current passes, the molten pool is condensed and crystallized, meanwhile, the electric arc is maintained to be burnt, and the electric arc has obvious flicker phenomenon during welding.
The structural block diagram of the existing full-digital direct-current pulse argon arc welding control system is shown in fig. 1, and the system comprises a microprocessor l, a human-computer interface 2, a welding current feedback module 3, an arc voltage feedback module 4, a welding time sequence control module 5, a welding power supply protection control module 6 and an inverter circuit driving module 7, wherein the human-computer interface 2, the welding current feedback module 3, the arc voltage feedback module 4, the welding time sequence control module 5, the welding power supply protection control module 6 and the: the microprocessor I is used for converting the analog signal input by the welding current feedback module into a digital signal, generating a PWM pulse signal by the digital signal and a given signal provided by a human-computer interface through proportional-integral operation and controlling the inverter circuit driving module; the welding current feedback module 3 is used for collecting the auxiliary variable current value of the welding power supply and outputting the collected auxiliary variable current value to the microprocessor; the arc voltage feedback module 4 is used for collecting voltage signals of the isolated welding power supply secondary variable direct current voltage and outputting the voltage signals to the microprocessor; the welding time sequence control module 5 is used for accurately controlling the time sequence of the welding process and realizing air supply, arc striking and arc stopping according to the time sequence requirement of the welding process; the welding power supply protection control module 6 is used for detecting the working state of the welding power supply; the inverter circuit driving module 7 is used for converting the PWM pulse signal output by the microprocessor into a signal capable of directly driving an external power device to work so as to control the output of the inverter; and the human-computer interface 2 is used for receiving external data, and displaying, adjusting and storing the welding state.
According to the full-digital direct-current pulse argon arc welding control system, a microprocessor is adopted to carry out proportional integral operation on a measured value and a given value transmitted by a welding current feedback module and an arc voltage feedback module to generate a PWM (pulse width modulation) pulse signal, and then an inverter circuit driving module is controlled to further control the on-off of a power switch device of an inverter circuit, so that the accurate control of the output voltage and current of an argon arc welding power supply is realized; the microprocessor displays the welding related information on the liquid crystal display through the human-computer interface, so that a user can conveniently check the welding related information, and related parameters can be correspondingly adjusted.
In the argon arc welding process, an electric arc of 5 to 15mm is formed, and the current of the electric arc is changed alternatively at a fixed pulse frequency in the direct current pulse argon arc welding.
Disclosure of Invention
The invention aims to provide a direct-current pulse argon arc welding machine which can play music in the welding process and does not influence the welding effect.
In order to solve the technical problem, the invention provides a direct current pulse argon arc welding machine, which comprises a controller and an electrode needle; the controller is provided with a memory;
one or more music scores, a note frequency corresponding table and a beat duration corresponding table are stored in the memory;
and after the electrode needle and the workpiece arc, the controller controls the frequency of the electric arc pulse current between the electrode needle and the workpiece and maintains the duration of the corresponding frequency consistent with the frequency and the beat corresponding to the music score notes stored in the selected memory.
Preferably, the score stored in the selected memory has one or more scores.
Preferably, a volume current corresponding table is arranged in the memory, and the controller controls the magnitude of the arc pulse current between the electrode needle and the workpiece according to the current corresponding to the selected volume.
Preferably, a volume distance corresponding table is arranged in the memory, and the controller controls the distance between the electrode needle and the workpiece according to the distance corresponding to the selected volume.
Preferably, the argon arc welding machine further comprises a human-computer interface;
the human-computer interface is connected with the controller;
the human-machine interface is used for selecting the volume.
Preferably, the human-computer interface comprises a key input module;
the key input module is used for converting the key information into high and low levels, generating key interruption at the same time, informing the controller to read the key information and making a response action, and realizing the input of external data.
Preferably, the human-computer interface further comprises a liquid crystal display;
the liquid crystal display is used for displaying information.
Preferably, the human-computer interface further comprises an alarm unit;
and the alarm unit is used for indicating the state of the welding power supply.
Preferably, the electrode needle is a tungsten needle.
The invention relates to a direct current pulse argon arc welding machine, which stores one or more music scores, a note frequency corresponding table and a beat time length corresponding table in a memory, after an arc is generated between an electrode needle and a workpiece, a controller controls the frequency of an electric arc pulse current between the electrode needle and the workpiece and maintains the duration of the corresponding frequency consistent with the frequency and the beat corresponding to the notes of a selected music score, so that the electric arc pulse current changes according to the notes and the beats of the selected music score in the welding process, the oscillation of the electric arc pulse current can make corresponding sound, the music playing is realized, and the mood of a welder can be pleased while the welding effect is not influenced during the welding of the direct current pulse argon arc welding machine.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the present invention are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a block diagram of a fully digital DC pulsed argon arc welding control system;
FIG. 2 is a schematic structural diagram of an embodiment of the DC pulsed argon arc welding machine of the present invention.
Detailed Description
The technical solutions in the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
As shown in fig. 2, the dc pulsed argon arc welding machine includes a controller, an electrode needle (e.g. tungsten needle);
the controller is provided with a memory;
one or more music scores, a note frequency corresponding table and a beat duration corresponding table are stored in the memory;
and after the electrode needle and the workpiece arc, the controller controls the frequency of the electric arc pulse current between the electrode needle and the workpiece and maintains the duration of the corresponding frequency consistent with the frequency and the beat corresponding to the music score notes stored in the selected memory.
Preferably, the score stored in the selected memory has one or more scores.
During the argon arc welding process, an electric arc of 5-15 mm is formed, the oscillation of the electric arc pulse current can generate sound (the sound is generated by the oscillation of the substance), and various sounds can be generated by changing the frequency of the electric arc pulse current (the frequency range of sound which can be recognized by human ears is 20-20 KHz).
The dc pulsed argon arc welding machine according to the first embodiment stores one or more music scores, a note frequency correspondence table, and a beat duration correspondence table in a memory, and after an arc is generated between an electrode needle and a workpiece, a controller controls the frequency of an arc pulse current between the electrode needle and the workpiece and maintains the duration of the corresponding frequency to be consistent with the frequency and beat corresponding to a note of a selected music score, so that the arc pulse current changes according to the note and beat of the selected music score during welding, the oscillation of the arc pulse current can make a corresponding sound, music playing is realized, and a welder can enjoy the mood while welding is not influenced during welding by the dc pulsed argon arc welding machine.
A table of the relative frequencies of the notes of the C key is as follows ("#" indicates a semitone, for ascending or descending semitones):
| musical notes | Frequency (Hz) | Musical notes | Frequency (Hz) |
| Low 1DO | 262 | In 1DO | 523 |
| Low #1DO # | 277 | Middle #1DO # | 554 |
| Low 2RE | 294 | Middle 2RE | 578 |
| Low #2RE # | 311 | Middle #2RE # | 622 |
| Low 3MI | 330 | Medium 3MI | 659 |
| Low 4FA | 349 | Middle 4FA | 698 |
| Low #4FA # | 370 | Middle #4FA # | 740 |
| Low 5SO | 392 | In 5SO | 784 |
| Low #5SO # | 415 | Middle #5SO # | 831 |
| Low 6LA | 440 | Middle 6LA | 880 |
| Low #6LA # | 466 | Middle #6LA # | 932 |
| Low 7SI | 494 | Middle 7SI | 988 |
A look-up table for simultaneous beat lengths is as follows:
| tune | 1/4 beat time length | 1/8 beat time length |
| 4/4 | 125ms | 62ms |
| 3/4 | 187ms | 94ms |
| 2/4 | 250ms | 125ms |
Example two
Based on the direct current pulse argon arc welding machine of the first embodiment, a volume current corresponding table is arranged in the memory, and the controller controls the size of the arc pulse current between the electrode needle and the workpiece according to the current corresponding to the selected volume.
In the dc pulsed argon arc welding machine of the second embodiment, when the selected volume is changed, the controller controls the electric arc pulse current between the electrode needle and the workpiece to be changed correspondingly, so that the volume of music playing is changed in the welding process.
EXAMPLE III
Based on the direct-current pulse argon arc welding machine of the first embodiment, a volume distance corresponding table is arranged in the memory, and the controller controls the distance between the electrode needle and the workpiece according to the distance corresponding to the selected volume.
In the dc pulsed argon arc welding machine according to the third embodiment, when the selected volume is changed, the controller controls the distance between the electrode needle and the workpiece to be changed, the arc length to be changed correspondingly, and the magnitude of the arc pulse current to be changed correspondingly, so that the volume change of the music playing of the dc pulsed argon arc welding machine in the welding process is realized. The distance between the electrode needle and the workpiece can also be manually changed to realize the volume change of music playing in the welding process.
Example four
Based on the second or third embodiment, the direct current pulse argon arc welding machine further comprises a human-computer interface;
the human-computer interface is connected with the controller;
the human-machine interface is used for selecting the volume.
Preferably, the human-computer interface comprises a key input module;
the key input module is used for converting the key information into high and low levels, generating key interruption at the same time, informing the controller to read the key information and making a response action, and realizing the input of external data.
Preferably, the human-computer interface further comprises a liquid crystal display;
the liquid crystal display is used for displaying information such as welding conditions, welding parameter selection, historical records and the like.
Preferably, the human-computer interface further comprises an alarm unit;
and the alarm unit is used for indicating the state of the welding power supply.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (9)
1. A direct current pulse argon arc welding machine comprises a controller and an electrode needle; characterized in that the controller is provided with a memory;
one or more music scores, a note frequency corresponding table and a beat duration corresponding table are stored in the memory;
and after the electrode needle and the workpiece arc, the controller controls the frequency of the electric arc pulse current between the electrode needle and the workpiece and maintains the duration of the corresponding frequency consistent with the frequency and the beat corresponding to the music score notes stored in the selected memory.
2. The DC pulsed argon arc welding machine according to claim 1, characterized in that,
the score stored in the selected memory has one or more scores.
3. The DC pulsed argon arc welding machine according to claim 1, characterized in that,
and a volume current corresponding meter is arranged in the memory, and the controller controls the size of the arc pulse current between the electrode needle and the workpiece according to the current corresponding to the selected volume.
4. The DC pulsed argon arc welding machine according to claim 1, characterized in that,
a volume distance corresponding table is arranged in the memory, and the controller controls the distance between the electrode needle and the workpiece according to the distance corresponding to the selected volume.
5. The DC pulsed argon arc welding machine according to claim 1, characterized in that,
the argon arc welding machine also comprises a human-computer interface;
the human-computer interface is connected with the controller;
the human-machine interface is used for selecting the volume.
6. The DC pulsed argon arc welding machine according to claim 5, characterized in that,
the human-computer interface comprises a key input module;
the key input module is used for converting the key information into high and low levels, generating key interruption at the same time, informing the controller to read the key information and making a response action, and realizing the input of external data.
7. The DC pulsed argon arc welding machine according to claim 5, characterized in that,
the human-computer interface also comprises a liquid crystal display;
the liquid crystal display is used for displaying information.
8. The DC pulsed argon arc welding machine according to claim 5, characterized in that,
the human-computer interface also comprises an alarm unit;
and the alarm unit is used for indicating the state of the welding power supply.
9. The DC pulsed argon arc welding machine according to claim 1, characterized in that,
the electrode needle is a tungsten needle.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710092695.4A CN106862731B (en) | 2017-02-21 | 2017-02-21 | DC pulse argon arc welding machine |
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| CN201710092695.4A CN106862731B (en) | 2017-02-21 | 2017-02-21 | DC pulse argon arc welding machine |
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| CN106862731B true CN106862731B (en) | 2021-06-25 |
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| CN109202217B (en) * | 2018-09-28 | 2021-03-05 | 上海通用重工集团有限公司 | Gas shielded welding machine convenient to strike arc |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201030467Y (en) * | 2007-05-17 | 2008-03-05 | 徐爱平 | Music welder |
| CN101758316A (en) * | 2009-09-28 | 2010-06-30 | 王可昌 | Electric welding machine |
| CN202344104U (en) * | 2011-09-29 | 2012-07-25 | 熊猫电子集团有限公司 | Multifunctional digital welding machine |
| CN103846585A (en) * | 2012-12-05 | 2014-06-11 | 襄阳市第二十五中学 | Electric welding machine with music playing function |
| CN204667560U (en) * | 2015-05-06 | 2015-09-23 | 江西师范大学 | A kind of music door-bell with massage functions |
-
2017
- 2017-02-21 CN CN201710092695.4A patent/CN106862731B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201030467Y (en) * | 2007-05-17 | 2008-03-05 | 徐爱平 | Music welder |
| CN101758316A (en) * | 2009-09-28 | 2010-06-30 | 王可昌 | Electric welding machine |
| CN202344104U (en) * | 2011-09-29 | 2012-07-25 | 熊猫电子集团有限公司 | Multifunctional digital welding machine |
| CN103846585A (en) * | 2012-12-05 | 2014-06-11 | 襄阳市第二十五中学 | Electric welding machine with music playing function |
| CN204667560U (en) * | 2015-05-06 | 2015-09-23 | 江西师范大学 | A kind of music door-bell with massage functions |
Non-Patent Citations (2)
| Title |
|---|
| 单片机控制TIG逆变焊机的研制;郑湘蒙;《中国优秀硕士学位论文全文数据库（工程科技Ⅰ辑）》;20020115;第1.2.2节及第2章 * |
| 可调节拍新型音乐门铃;金韦;《实用影音技术》(第10期);第50页 * |
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Denomination of invention: DC pulse argon arc welding machine Effective date of registration: 20231026 Granted publication date: 20210625 Pledgee: Bank of Shanghai Co.,Ltd. Jing'an Sub branch Pledgor: SHANGHAI TAYOR WELDING MACHINE Co.,Ltd. Registration number: Y2023310000676 |