CN107813032A - Lockhole TIG and MIG electric arc couple composite welding apparatus and method - Google Patents
Lockhole TIG and MIG electric arc couple composite welding apparatus and method Download PDFInfo
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- 238000003466 welding Methods 0.000 title claims abstract description 162
- 239000002131 composite material Substances 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000010891 electric arc Methods 0.000 title claims 3
- 230000008878 coupling Effects 0.000 claims abstract description 17
- 238000010168 coupling process Methods 0.000 claims abstract description 17
- 238000005859 coupling reaction Methods 0.000 claims abstract description 17
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 15
- 229910052721 tungsten Inorganic materials 0.000 claims description 15
- 239000010937 tungsten Substances 0.000 claims description 15
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 3
- 239000010962 carbon steel Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 2
- 230000005540 biological transmission Effects 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 claims 1
- 230000001681 protective effect Effects 0.000 abstract description 7
- 239000000498 cooling water Substances 0.000 abstract description 6
- 230000005496 eutectics Effects 0.000 abstract description 4
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
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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
- B23K9/16—Arc welding or cutting making use of shielding gas
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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
- B23K28/00—Welding or cutting not covered by any of the preceding groups, e.g. electrolytic welding
- B23K28/02—Combined welding or cutting procedures or apparatus
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Abstract
本发明属于焊接设备技术领域，公开了锁孔TIG和MIG电弧耦合复合焊接装置及方法，装置包括TIG焊枪、MIG焊枪、焊接底座、保护气罩、焊接支架、冷却水装置、气体送给装置和保护气罩，TIG焊枪和MIG焊枪固定连接组成锁孔TIG和MIG复合焊炬，TIG焊枪和MIG焊枪有一定角度，角度可调，锁孔TIG和MIG复合焊炬贯穿焊接底座，焊接底座与焊接支架固定连接，保护气罩与焊接底座固定连接。本发明的焊接装置，将锁孔TIG电弧和MIG电弧耦合在一起，沿焊接方向，锁孔TIG电弧在MIG电弧前方实现穿孔性焊接，同时预热工件，MIG电弧在后填充金属盖面，实现共熔池耦合焊接，耦合后焊接效率大于单把焊枪，实现1+1>2的焊接效果，焊缝成型美观、均匀细腻，保证焊接接头质量。
The invention belongs to the technical field of welding equipment, and discloses a keyhole TIG and MIG arc coupling composite welding device and method. The device includes a TIG welding torch, a MIG welding torch, a welding base, a protective gas cover, a welding bracket, a cooling water device, a gas delivery device and The shielding gas cover, TIG welding torch and MIG welding torch are fixedly connected to form a keyhole TIG and MIG composite welding torch, the TIG welding torch and MIG welding torch have a certain angle, the angle is adjustable, the keyhole TIG and MIG composite welding torch runs through the welding base, the welding base is connected to the welding The bracket is fixedly connected, and the protective gas cover is fixedly connected with the welding base. The welding device of the present invention couples the keyhole TIG arc and the MIG arc together, along the welding direction, the keyhole TIG arc realizes perforation welding in front of the MIG arc, and preheats the workpiece at the same time, and the MIG arc fills the metal cover at the back to realize Eutectic pool coupling welding, the welding efficiency after coupling is greater than that of a single welding torch, and the welding effect of 1+1>2 is realized. The welding seam is beautiful, uniform and delicate, and the quality of the welding joint is guaranteed.
Description
技术领域technical field
本发明属于焊接设备技术领域，涉及一种锁孔TIG和MIG电弧耦合复合焊接装置。The invention belongs to the technical field of welding equipment, and relates to a keyhole TIG and MIG arc coupling composite welding device.
背景技术Background technique
1972年，荷兰Philips公司的Essers等人提出了将等离子弧和MIG电弧耦合在一起的概念。1995年，乌克兰巴顿焊接研究所提出将等离子弧和MIG电弧进行旁轴复合，研制出Super-MIG复合焊接设备，焊缝成型美观，得到合理的深宽比焊缝，保证焊接质量。但是该设备核心技术受限于国外，焊接设备成本较高。In 1972, Essers et al. of Philips in the Netherlands proposed the concept of coupling the plasma arc and the MIG arc. In 1995, the Ukrainian Barton Welding Research Institute proposed that the plasma arc and MIG arc be compounded side-by-side, and developed Super-MIG composite welding equipment. However, the core technology of this equipment is limited by foreign countries, and the cost of welding equipment is relatively high.
日本学者Kanemaru提出TIG-MIG复合焊接方法，复合后TIG电弧和MIG电弧稳定，飞溅较小，焊缝成型美观，解决TIG焊效率低，MIG电弧不稳定问题。但存在熔深较浅等问题，对于厚板需要开剖口或者多层多道焊。Japanese scholar Kanemaru proposed the TIG-MIG composite welding method. After the composite, the TIG arc and MIG arc are stable, the spatter is small, the weld shape is beautiful, and the problems of low TIG welding efficiency and MIG arc instability are solved. However, there are problems such as shallow penetration, and for thick plates, openings or multi-layer multi-pass welding are required.
发明内容Contents of the invention
本发明的目的是要解决现有技术存在的问题，提出一种技术方案锁孔TIG和MIG电弧耦合复合焊接装置，包括TIG焊枪、MIG焊枪、焊接底座、保护气罩、焊接支架、冷却水装置、气体送给装置和保护气罩，TIG焊枪和MIG焊枪固定连接组成锁孔TIG和MIG复合焊炬，TIG焊枪和MIG焊枪有一定角度，角度可调，锁孔TIG和MIG复合焊炬贯穿焊接底座，焊接底座与焊接支架固定连接，保护气罩与焊接底座固定连接。The purpose of the present invention is to solve the problems existing in the prior art, and propose a technical scheme keyhole TIG and MIG arc coupling composite welding device, including TIG welding torch, MIG welding torch, welding base, shielding gas cover, welding bracket, cooling water device , Gas feeding device and protective gas cover, TIG welding torch and MIG welding torch are fixedly connected to form a keyhole TIG and MIG composite welding torch, TIG welding torch and MIG welding torch have a certain angle, the angle is adjustable, and the keyhole TIG and MIG composite welding torch penetrates through the welding The base, the welding base is fixedly connected with the welding bracket, and the protective gas cover is fixedly connected with the welding base.
TIG焊枪包括中心钨极，MIG焊枪与中心钨极中心轴线夹角范围为30~60°。The TIG welding torch includes a central tungsten pole, and the angle between the MIG welding torch and the central axis of the central tungsten pole is 30° to 60°.
锁孔TIG和MIG焊接电源包括两个模块，采用两个独立的焊接电源，锁孔TIG采用直流正接，MIG采用直流反接。The keyhole TIG and MIG welding power supply includes two modules, using two independent welding power sources, the keyhole TIG adopts DC positive connection, and MIG adopts DC reverse connection.
锁孔TIG和MIG复合焊矩固定在焊接底座或焊接支架上。Keyhole TIG and MIG composite welding torches are secured to welding bases or welding supports.
焊接底座与焊接支架螺栓连接，保护气罩与焊接底座螺钉连接。The welding base is connected with the welding bracket with bolts, and the shielding gas cover is connected with the welding base with screws.
气体送给装置传送保护气，保护气采用纯Ar气，流量为15-20L/min。The gas delivery device transmits protective gas, the protective gas is pure Ar gas, and the flow rate is 15-20L/min.
MIG焊焊丝采用碳钢焊丝ER50-6，直径为1.2mm。MIG welding wire is carbon steel wire ER50-6 with a diameter of 1.2 mm.
锁孔TIG和MIG电弧耦合复合焊接方法，包括以下步骤：Keyhole TIG and MIG arc coupled hybrid welding method, including the following steps:
（1）打开气体送给装置、冷却水装置；(1) Turn on the gas delivery device and cooling water device;
（2）设置焊接参数，调整焊接姿态，锁孔TIG中心钨极垂直于焊接工件，MIG焊枪与中心钨极中心轴线夹角β范围为30~60°；(2) Set the welding parameters, adjust the welding posture, the central tungsten pole of the keyhole TIG is perpendicular to the welding workpiece, and the angle β between the MIG welding torch and the central axis of the central tungsten pole is 30~60°;
（3）调节焊接装置，距离焊接工件3-7mm，启动锁孔TIG焊接电源，待锁孔TIG电弧稳定后，启动MIG焊接电源；(3) Adjust the welding device to a distance of 3-7mm from the welding workpiece, start the keyhole TIG welding power supply, and start the MIG welding power supply after the keyhole TIG arc is stable;
（4）焊接完成后，依次关闭焊接电源、保护气装置、冷却装置。(4) After the welding is completed, turn off the welding power supply, shielding gas device, and cooling device in sequence.
本发明的焊接装置，将锁孔TIG电弧和MIG电弧耦合在一起，沿焊接方向，锁孔TIG电弧在MIG电弧前方实现穿孔性焊接，同时预热工件，MIG电弧在后填充金属盖面，实现共熔池耦合焊接，耦合后焊接效率大于单把焊枪，实现1+1>2的焊接效果，焊缝成型美观、均匀细腻，保证焊接接头质量。在共熔池作用下，锁孔TIG电弧和MIG电弧优势互补，提高电弧能量，得到合理深宽比焊缝；焊接过程中同时存在两个电弧，共熔池时间较长利于气孔排出，提高焊接质量；焊接设备成本较低。The welding device of the present invention couples the keyhole TIG arc and the MIG arc together, along the welding direction, the keyhole TIG arc realizes perforation welding in front of the MIG arc, and preheats the workpiece at the same time, and the MIG arc fills the metal cover at the back to realize Eutectic pool coupling welding, the welding efficiency after coupling is greater than that of a single welding torch, and the welding effect of 1+1>2 is realized. The weld shape is beautiful, uniform and delicate, and the quality of the welded joint is guaranteed. Under the action of the eutectic pool, the advantages of the keyhole TIG arc and the MIG arc are complementary, the arc energy is increased, and a weld with a reasonable depth-to-width ratio is obtained; there are two arcs at the same time during the welding process, and the eutectic pool time is longer, which is conducive to the discharge of pores and improves welding. quality; welding equipment costs are lower.
附图说明Description of drawings
图1：本发明的锁孔TIG和MIG电弧耦合复合焊接装置结构示意图；Fig. 1: Structural schematic diagram of keyhole TIG and MIG arc coupling composite welding device of the present invention;
图2：本发明的锁孔TIG和MIG电弧耦合复合焊接装置应用示意图。Fig. 2: Application schematic diagram of keyhole TIG and MIG arc coupling composite welding device of the present invention.
其中：1.保护气罩，2. MIG焊枪，3.焊接支架，4.焊接底座，5.中心钨极，6.工件。Among them: 1. Shielding gas shield, 2. MIG welding torch, 3. Welding bracket, 4. Welding base, 5. Center tungsten pole, 6. Work piece.
具体实施方式Detailed ways
如图1-2所示，本发明的锁孔TIG和MIG电弧耦合复合焊接装置，包括中心钨极5、MIG焊枪2、焊接底座4、保护气罩1、焊接支架3。中心钨极5和MIG焊枪2共同组成锁孔TIG-MIG复合焊炬，锁孔TIG-MIG复合焊炬贯穿焊接底4，通过螺栓连接将焊接底座4固定在焊接支架3上，保护气罩1通过螺钉连接固定在焊接底座4上。As shown in Figures 1-2, the keyhole TIG and MIG arc coupling composite welding device of the present invention includes a central tungsten electrode 5, a MIG welding torch 2, a welding base 4, a shielding gas cover 1, and a welding support 3. The central tungsten electrode 5 and the MIG welding torch 2 together form a keyhole TIG-MIG composite welding torch, the keyhole TIG-MIG composite welding torch penetrates the welding bottom 4, and the welding base 4 is fixed on the welding bracket 3 through bolt connection, and the protective gas cover 1 It is fixed on the welding base 4 by screw connection.
本焊接装置焊接电源包括TIG焊机电源和MIG焊接电源，锁孔TIG采用直流正接，MIG采用直流反接，分别为锁孔TIG和MIG供电；保护气供给装置为锁孔TIG以及整个焊枪提供保护气；焊接装置可以与机器人连接，实现自动化操作。在焊接时，中心钨极垂直于焊接工件，MIG焊矩与中心钨极中心轴线夹角范围为30~60°。焊接过程中，沿着焊接方向，锁孔TIG电弧在前，预热工件，形成一定深度的匙孔，MIG电弧在后，填充金属；保护气采用纯Ar气，流量为15-20L/min，MIG焊焊丝采用碳钢焊丝ER50-6，直径为1.2mm。The welding power supply of this welding device includes TIG welding machine power supply and MIG welding power supply. The keyhole TIG adopts DC positive connection, and MIG adopts DC reverse connection, which supply power for the keyhole TIG and MIG respectively; the shielding gas supply device provides protection for the keyhole TIG and the entire welding torch. gas; the welding device can be connected with a robot to realize automatic operation. During welding, the central tungsten pole is perpendicular to the welding workpiece, and the angle between the MIG welding torch and the central axis of the central tungsten pole is 30-60°. During the welding process, along the welding direction, the keyhole TIG arc is in front, and the workpiece is preheated to form a keyhole with a certain depth, and the MIG arc is behind, and the metal is filled; the shielding gas is pure Ar gas, and the flow rate is 15-20L/min. MIG welding wire is carbon steel wire ER50-6 with a diameter of 1.2mm.
锁孔TIG和MIG电弧耦合复合焊接装置及方法，包括以下步骤：Keyhole TIG and MIG arc coupled composite welding device and method, comprising the following steps:
（1）打开气体送给装置、冷却水装置；(1) Turn on the gas delivery device and cooling water device;
（2）设置焊接参数，调整焊接姿态，中心钨极垂直于焊接工件，MIG焊枪和中心钨极中心轴线夹角为30~60°；(2) Set the welding parameters, adjust the welding posture, the central tungsten pole is perpendicular to the welding workpiece, and the angle between the MIG welding torch and the central axis of the central tungsten pole is 30~60°;
（3）调节焊接装置，距离焊接工件3-7mm，启动锁孔TIG焊接电源，待锁孔TIG电弧稳定后，启动MIG焊接电源；(3) Adjust the welding device to a distance of 3-7mm from the welding workpiece, start the keyhole TIG welding power supply, and start the MIG welding power supply after the keyhole TIG arc is stable;
（4）焊接完成后，依次关闭焊接电源、保护气装置、冷却装置。(4) After the welding is completed, turn off the welding power supply, shielding gas device, and cooling device in sequence.
锁孔TIG焊接电源采用奥太WSME-630型焊机，占空比、脉冲比、频率可调；MIG焊接电源采用lorch乐驰高速脉冲焊机；冷却水设备选用CW-5300型冷水机，冷却水最低温度可达1.5℃。Keyhole TIG welding power supply adopts Aotai WSME-630 welding machine, with adjustable duty cycle, pulse ratio and frequency; MIG welding power supply adopts lorch Lechi high-speed pulse welding machine; cooling water equipment adopts CW-5300 chiller, cooling water The lowest temperature can reach 1.5°C.
实施例仅说明本发明的技术方案，而非对其进行任何限制；尽管参照前述实施例对本发明进行了详细的说明，对于本领域的普通技术人员来说，依然可以对前述实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或替换，并不使相应技术方案的本质脱离本发明所要求保护的技术方案的精神和范围。The embodiment only illustrates the technical scheme of the present invention, rather than carrying out any limitation to it; Although the present invention has been described in detail with reference to the foregoing embodiments, for those of ordinary skill in the art, the records of the foregoing embodiments can still be Modifications to the technical solutions, or equivalent replacement of some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions claimed in the present invention.
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| CN112122748A (en) * | 2020-09-07 | 2020-12-25 | 上海交通大学 | Welding method for inhibiting welding pores of galvanized plate |
| CN113927192A (en) * | 2021-10-29 | 2022-01-14 | 中国船舶重工集团公司第七二五研究所 | Welding method of large-size titanium alloy pipeline |
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| CN112122748A (en) * | 2020-09-07 | 2020-12-25 | 上海交通大学 | Welding method for inhibiting welding pores of galvanized plate |
| CN113927192A (en) * | 2021-10-29 | 2022-01-14 | 中国船舶重工集团公司第七二五研究所 | Welding method of large-size titanium alloy pipeline |
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