WO2018036535A1 - Pistolet de soudage - Google Patents

Pistolet de soudage Download PDF

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Publication number
WO2018036535A1
WO2018036535A1 PCT/CN2017/098761 CN2017098761W WO2018036535A1 WO 2018036535 A1 WO2018036535 A1 WO 2018036535A1 CN 2017098761 W CN2017098761 W CN 2017098761W WO 2018036535 A1 WO2018036535 A1 WO 2018036535A1
Authority
WO
WIPO (PCT)
Prior art keywords
wire
welding torch
cable
tip
swinging
Prior art date
Application number
PCT/CN2017/098761
Other languages
English (en)
Chinese (zh)
Inventor
张仁堂
王文乐
袁光伟
Original Assignee
北京文源同创科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 北京文源同创科技有限公司 filed Critical 北京文源同创科技有限公司
Publication of WO2018036535A1 publication Critical patent/WO2018036535A1/fr

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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
    • B23K9/24—Features related to electrodes
    • B23K9/28—Supporting devices for electrodes
    • B23K9/287—Supporting devices for electrode holders
    • 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
    • B23K9/24—Features related to electrodes
    • B23K9/26—Accessories for electrodes, e.g. ignition tips

Definitions

  • the present application relates to the field of welding, and in particular to a welding torch.
  • the material grade of the base metal and the complexity of the welded structure increase the difficulty of welding and put forward higher requirements for the guarantee of welding quality.
  • the small-seat fillet welds in the domestic boiler industry are all hand-welded, the welding workload is large, the labor intensity is large, the welding quality is greatly affected by human factors, the quality is not easy to guarantee, and the production efficiency is low.
  • the object of the present application is to provide a welding torch which can be applied to the automatic welding of the dense long pipe seat and the outer fillet weld of the long pipe head with the elbow at the top to greatly improve the degree of automation, production efficiency and product manufacturing quality.
  • a welding torch comprising a pipe head and a cable
  • the pipe head comprising a pipe head body, a contact tip holder, a contact tip and a nozzle
  • the gun head body being internally provided with one or more gas
  • the conductive nozzle holder is provided with one or more air holes
  • the conductive nozzle is internally provided with a circular arc wire passage
  • the nozzle is engaged with the gun head body
  • the conductive nozzle base and the gun head body Engagement causes gas exiting the air passage to enter the cavity of the nozzle through the air vent, the contact tip being engaged with the contact tip, the nozzle surrounding the contact tip and the contact tip.
  • the contact tip is composed of two halves, and a symmetrical position of each half is provided with a semi-circular arc wire passage groove, and the semicircular arc wire passage grooves of the two halves are stacked in two halves.
  • the circular arc wire passage is formed at the same time.
  • the cable includes a guidewire tube, a cannula, a cable, and a cable jacket, the sleeve surrounding the guidewire tube, the cable jacket surrounding the sleeve, the cable arrangement Between the sleeve and the cable jacket, there is a gap between the guide wire tube and the sleeve, and an outlet pipe is further disposed between the sleeve and the cable jacket.
  • the wire guide tube includes a spring tube and an engineering plastic tube that are connected to each other.
  • the cable is coupled to the tip by a swinging member, the swinging member including a swinging mandrel and a swinging mandrel, the swinging mandrel being rotatably inserted in the swinging core
  • a swinging member including a swinging mandrel and a swinging mandrel
  • the swinging mandrel being rotatably inserted in the swinging core
  • an inner hole of the swinging mandrel and an opening of the swinging mandrel casing form a passage for the guide wire tube to pass through
  • the swinging mandrel outer casing is engaged with the pipe head body, the cable
  • An outer sleeve is sleeved over the projection of the swinging mandrel.
  • a fixing wire holder having a through hole is disposed in the inner hole of the swinging mandrel, and an end of the sleeve is sleeved on the fixing wire seat.
  • the tip body is provided with an external spline
  • the swinging mandrel is provided with a spline groove
  • the external spline is engaged with the spline groove
  • the gun head body is provided with an adjusting bracket
  • the adjusting bracket is a Y-shaped structure
  • an upper end opening of the Y-shaped structure is connected and fixed to the gun head body
  • the Y-shaped The end of the lower end of the structure is provided with a groove.
  • the welding torch of the invention can be used for automatic welding of the outer fillet weld of the small pipe socket, which can perform small R winding, so that the wire arc welding can be realized in the small space rotating welding condition, such as GMAW/FCAW/SAW welding, overcoming the prior art.
  • the main benefits and advantages of the limitations are as follows:
  • the contact nozzle seat and the nozzle are designed to have an oblong shape, which can overcome the limitation of the wire bending and the narrow space of the welding zone, and ensure that the shielding gas range can cover the change of the arc position when the wire has a large dry elongation;
  • FCAW flux-cored wire gas shielded welding
  • the position of the torch tip can be adjusted to suit different welding positions.
  • FIG. 1 is a cross-sectional view and a plan view of a welding torch in accordance with an embodiment of the present invention.
  • FIG. 2A and 2B are a front view and a cross-sectional view, respectively, of the tip body of the welding gun shown in Fig. 1.
  • 3A and 3B are a cross-sectional view and a plan view, respectively, of the nozzle of the welding gun shown in Fig. 1.
  • 4A and 4B are a cross-sectional view and a front view, respectively, of a contact tip of the welding torch shown in Fig. 1.
  • 5A and 5B are a cross-sectional view and a plan view, respectively, of a contact tip of the welding torch shown in Fig. 1.
  • 6A and 6B are a front view and a cross-sectional view, respectively, of the swinging mandrel of the welding gun shown in Fig. 1.
  • 7A and 7B are a cross-sectional view and a left side view, respectively, of the oscillating mandrel jacket of the welding gun shown in Fig. 1.
  • FIG. 8A and 8B are schematic cross-sectional views showing the fitting of the tip body and the swinging mandrel of the welding torch shown in Fig. 1, respectively.
  • the welding torch includes a tip and a cable, and the tip is connected to the cable through a swinging member.
  • the tip includes a tip body 11, a contact housing 12, a contact tip 13, and a nozzle 14.
  • the tip body 11 is internally provided with one or more air passages 11A as shown in Figures 2A and 2B.
  • the contact tip holder 12 has an oblong shape and is provided with a plurality of air holes 12A as shown in FIGS. 5A and 5B.
  • the arcuate wire passage 13A is provided inside the contact tip 13. The radius of the arc of the circular arc wire channel can be adjusted according to the actual situation.
  • the contact tip 13 is composed of two halves, and the symmetrical position of each half is provided with a semi-circular arc wire channel groove, and the semicircular arc wire channel grooves of the two halves form an arc when the two halves are overlapped.
  • the wire passage 13A is as shown in Figs. 4A and 4B.
  • the nozzle 14 is an oblong hollow shape as shown in Figures 3A and 3B. The nozzle 14 is engaged with the tip body 11, and the tip holder 12 is engaged with the tip body 11 such that the gas from the air passage 11A enters the cavity of the nozzle 14 through the air hole 12A, and the contact tip 13 is engaged with the contact tip 12, and the nozzle 14
  • the contact tip 13 and the contact tip holder 12 are surrounded.
  • the contact tip 13 can also be formed integrally.
  • the cable includes a guidewire tube 21, a sleeve 22, a cable 23 and a cable jacket 24, the sleeve 22 enclosing the guidewire tube 21, the cable jacket 24 enclosing the sleeve 22, the cable 23 being disposed in the sleeve 22 and Cable Between the jackets 24, there is a gap between the guide wire tube 21 and the sleeve 22, and an outlet pipe 25 is also disposed between the sleeve 22 and the cable jacket 24.
  • the wire guide tube 21 may be a spring tube or a spring tube 21A and an engineering plastic tube 21B connected to each other.
  • the swinging member includes a swinging mandrel 31 and a swinging mandrel casing 32.
  • 6A-7B show an illustrative embodiment of a swinging mandrel 31 and a swinging mandrel jacket 32, respectively.
  • the swinging mandrel 31 is rotatably inserted into the swinging mandrel casing 32 to realize three functions of conducting, swinging, and gas sealing.
  • the inner hole 31A of the swinging mandrel 31 and the opening 32A of the swinging mandrel casing 32 are formed for the wire guide tube. 21 passage through.
  • the swinging mandrel cover 32 is provided with a spline groove 32B, and the tip body 11 is provided with external splines 11B as shown in Figs. 8A and 8B.
  • the external spline 11B cooperates with the spline groove 32B to engage the swinging mandrel cover 32 with the tip body 11, so that the tip of the gun is connected to the swinging member in a quick-release manner, which is convenient to disassemble and realizes gas-tight sealing of the conductive and contact surfaces, and adjusts the swing by adjusting
  • the swing angle of the mandrel jacket 32 allows adjustment of the wire pointing position.
  • the cable jacket 24 is tightly fitted over the projection of the swinging mandrel 31, and the cable 23 is welded to the projection of the swinging mandrel 31.
  • a fixing wire holder 31B having a through hole is provided in the inner hole of the swinging mandrel 31, and the end of the sleeve 22 is fitted over the fixing wire holder 31B so that the space between the cable outer casing 24 and the sleeve 22 and the swinging mandrel 31 A water seal is formed between them, and water cannot enter the swinging mandrel casing 32 and the tip by the swinging mandrel 31.
  • the gun body 11 is provided with an adjustment bracket 15 which is a Y-shaped structure, the Y-shaped upper end opening is connected to the gun body 11 and fixed, and the Y-shaped lower end straight end and the nozzle 14
  • the flush, Y-shaped lower end straight section is also provided with a rectangular groove for adjusting the angular position of the tip body 11 by a special tool.
  • the cable jacket 24 and the casing 22 are filled with water, the cable 23 is water-cooled, and the circulating water flows out of the cable through the outlet pipe 25.
  • This embodiment of the invention employs a water cooling mode, and other cooling modes may be employed in other embodiments.
  • the shielding gas is supplied between the sleeve 22 and the guide wire tube 21, and the shielding gas enters the air passage 11A of the tip body 11 through the through hole of the fixing wire holder 31B and the opening of the swinging mandrel housing 32.
  • the guide wire tube 21 passes from the fixed wire holder 31B, the swinging mandrel 31, and the swinging mandrel cover 32 to the tip of the gun.
  • the material, strength and inner diameter of the wire guide tube 21 can be selected as needed.
  • a combination of the front copper spring tube 21A and the rear engineering plastic tube 21B is adopted, and the inner diameter of the engineering plastic tube is larger than the outer diameter of the welding wire by 0.2-0.3 mm to reduce the welding wire in the inner hole of the guide tube. Bending, thereby increasing the rigidity against the conveying resistance.
  • the outer diameter of the engineering plastic tube 21B is greater than or equal to 5 mm, and the tensile strength is greater than the destabilizing strength of the flux-cored wire, ensuring that the wire feeding force is large enough and the plastic tube is not stretched.

Abstract

L'invention concerne un pistolet de soudage, comprenant une tête de pistolet et un câble. La tête de pistolet comprend un corps de tête de pistolet (11), un siège de tube de contact (12), un tube de contact (13) et une buse (14). Un ou plusieurs passages d'air (11A) sont disposés à l'intérieur du corps de tête de pistolet (11), un ou plusieurs trous d'air (12A) sont disposés dans le siège de tube de contact (12), et un canal de fil de soudage à arc circulaire (13A) est disposé à l'intérieur du tube de contact (13). La buse (14) est reliée au corps de tête de pistolet (11), et le siège de tube de contact (12) est relié au corps de tête de pistolet (11), de telle sorte que le gaz sortant du passage d'air (11A) pénètre dans une cavité de la buse (14) à l'aide du trou d'air (12A). Le tube de contact (13) est serré sur le siège de tube de contact (12), et la buse (14) encercle le tube de contact (13) et le siège de tube de contact (12). Le pistolet de soudage est applicable au soudage automatique de soudures d'angles externes d'une douille de tube longue et compacte et d'une douille de tube longue possédant un coude au niveau de la partie supérieure. La position de la tête de pistolet du pistolet de soudage est réglable, de façon à s'adapter à différentes positions de soudage.
PCT/CN2017/098761 2016-08-25 2017-08-24 Pistolet de soudage WO2018036535A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201610728885.6 2016-08-25
CN201610728885.6A CN107775158A (zh) 2016-08-25 2016-08-25 一种焊枪

Publications (1)

Publication Number Publication Date
WO2018036535A1 true WO2018036535A1 (fr) 2018-03-01

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PCT/CN2017/098761 WO2018036535A1 (fr) 2016-08-25 2017-08-24 Pistolet de soudage

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CN (1) CN107775158A (fr)
WO (1) WO2018036535A1 (fr)

Cited By (1)

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CN115090995A (zh) * 2022-08-04 2022-09-23 浙江传播者金属装饰材料有限公司 一种具有可伸缩焊枪的钢管自动焊接机

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CN109262115A (zh) * 2018-11-20 2019-01-25 广州镱宝电机有限公司 一种焊枪、送丝机接头及焊接设备

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CN201755715U (zh) * 2010-08-10 2011-03-09 苏州工业园区华焊科技有限公司 弯头式焊枪
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1279576A (en) * 1969-01-23 1972-06-28 Mitsubishi Electric Corp Conduit tubes for arc welding apparatus
CN101417365A (zh) * 2007-10-26 2009-04-29 通用汽车环球科技运作公司 用于气体保护金属极电弧焊的焊枪和导电嘴
CN201559018U (zh) * 2009-11-09 2010-08-25 山西北方风雷工业集团有限公司 狭窄焊接空间自冷式气体保护焊枪枪体组件
CN101941113A (zh) * 2010-06-11 2011-01-12 兰州交通大学 一种超窄间隙焊枪及焊接方法
CN201755715U (zh) * 2010-08-10 2011-03-09 苏州工业园区华焊科技有限公司 弯头式焊枪
CN201792087U (zh) * 2010-08-16 2011-04-13 周保群 二氧化碳焊接用导电嘴
CN203765150U (zh) * 2014-02-24 2014-08-13 中信重工机械股份有限公司 一种用于超窄深空腔焊接的熔化极气体保护焊焊枪
CN205967769U (zh) * 2016-08-25 2017-02-22 北京文源同创科技有限公司 一种焊枪

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115090995A (zh) * 2022-08-04 2022-09-23 浙江传播者金属装饰材料有限公司 一种具有可伸缩焊枪的钢管自动焊接机
CN115090995B (zh) * 2022-08-04 2024-04-05 发哲(浙江)新材料科技有限公司 一种具有可伸缩焊枪的钢管自动焊接机

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