CN113305405A - Double-wire single-arc welding contact tip and application thereof - Google Patents

Double-wire single-arc welding contact tip and application thereof Download PDF

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Publication number
CN113305405A
CN113305405A CN202110696944.7A CN202110696944A CN113305405A CN 113305405 A CN113305405 A CN 113305405A CN 202110696944 A CN202110696944 A CN 202110696944A CN 113305405 A CN113305405 A CN 113305405A
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CN
China
Prior art keywords
welding
wire
tip
contact tip
arc welding
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Legal status (The legal status 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 status listed.)
Pending
Application number
CN202110696944.7A
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Chinese (zh)
Inventor
邓火生
龙昌茂
雷运理
陈世贤
戴建树
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangxi Welding Robot Technology Co ltd
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Guangxi Welding Robot Technology Co ltd
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Publication date
Application filed by Guangxi Welding Robot Technology Co ltd filed Critical Guangxi Welding Robot Technology Co ltd
Priority to CN202110696944.7A priority Critical patent/CN113305405A/en
Publication of CN113305405A publication Critical patent/CN113305405A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00Arc welding or cutting
    • B23K9/24Features related to electrodes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00Arc welding or cutting
    • B23K9/24Features related to electrodes
    • B23K9/26Accessories for electrodes, e.g. ignition tips

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Arc Welding In General (AREA)

Abstract

The invention discloses a double-wire single-arc welding contact tip and application thereof, wherein the contact tip comprises a main body, a tip end arranged at one end of the main body, a connecting part arranged at the other end of the main body and at least two welding wire holes, wherein the welding wire holes sequentially penetrate through the connecting part, the main body and the tip end; the distance between the welding wire hole and the longitudinal centerline of the connecting part, the main body and the tip end is gradually reduced. The invention arranges at least two welding wire holes in the same contact tube, which can avoid the interference between two arcs and ensure the stability of welding quality; the welding wires are adjusted when more than two welding wire holes are arranged, so that the welding wires are convenient to use; the perpendicular distance of wire hole and connecting portion, main part, most advanced central line dwindles gradually for the wire hole is "V" shape setting, can not only guarantee that the welding wire orientation is unanimous, avoids welding wire to diverge among the welding process, and then has improved the welded penetration degree of depth.

Description

Double-wire single-arc welding contact tip and application thereof
Technical Field
The invention belongs to the technical field of welding, and particularly relates to a double-wire single-arc welding contact tip and application thereof.
Background
Contact tips are important components for guiding welding wire during welding. The existing twin-wire welding uses two contact tips during welding, so that two welding wires penetrating through the contact tips extend out in parallel, but two electric arcs formed in the welding process interfere with each other to influence the stability of the welding quality; in addition, because the double-wire double-arc welding is that two welding wires are welded layer by layer, the problem that penetration is not deep exists, so that the welding strength is not enough, and the welding requirement of high-quality products is difficult to meet.
Disclosure of Invention
The invention provides a double-wire single-arc welding contact tip and application thereof, aiming at solving the technical problems.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a two silk single arc welding contact tip and application thereof, includes the main part, set up in the pointed end of main part one end, set up in the connecting portion of the main part other end still include two at least welding wire holes, the welding wire hole passes in proper order connecting portion the main part pointed end. At least two welding wire holes are arranged in one contact tube, and only one electric arc is formed, so that the interference of double wires and double arcs in the welding process is avoided, and the stability of the welding quality is improved; at least two welding wire holes are arranged, two welding wire holes can be selected during double-wire welding, and the rest welding wire holes are used for adjustment;
further, the longitudinal centerline distance of the wire hole from the connecting part, the main body and the tip end is gradually reduced. The perpendicular distance of wire hole and connecting portion, main part, most advanced central line dwindles gradually for the wire hole is "V" shape setting, makes the distance between two welding wires that pass the wire hole constantly diminish, has guaranteed that the welding wire orientation is unanimous, avoids welding process in the welding wire to diverge, and then has improved the welded penetration depth.
Further, the wire hole is equidistant from the longitudinal centerlines of the connecting portion, the body, and the tip on the same horizontal cross section. Because the number of the arranged welding wire holes is at least one, the positions of the welding wire holes are further limited so as to be convenient for installation and use.
Further, the number of the welding wire holes is two or four; when the number of the welding wire holes is two, the middle point of the connecting line of the welding wire holes is positioned on the longitudinal middle line of the connecting part, the main body and the tip; when the number of the welding wire holes is four, included angles formed by any two adjacent welding wire holes on the same longitudinal section and the longitudinal center lines of the connecting part, the main body and the tip end are equal.
Furthermore, the welding wire hole extension lines of the middle points of any two connecting lines on the longitudinal center lines of the connecting part, the main body and the tip are connected, and the distance between the positions where the welding wire hole extension lines are connected and the tip is 15-30 mm. The dry elongation of the welding wires is generally between 15 and 30mm, so that the welding requirements can be met by connecting the two welding wires at a position 15 to 30mm away from the tip, and only one electric arc is formed after the two welding wires are connected, so that the interference between double electric arcs formed by the previous double wires can be avoided, the stability of the electric arc is ensured, and the welding penetration can be improved.
Further, the center distance of any two of the wire holes at the position of the connecting part is 4.5-4.8 mm. The center distance of any two of the wire holes at the tip position is 1.0-1.4 mm. In order to make the welding wire hole in the contact tip in an inclined arrangement, the position of the welding wire hole is further limited by considering the specification and the size of the contact tip.
Furthermore, the connecting part is provided with a plurality of tangent planes, and a plurality of tangent planes are oppositely arranged inside the tail end of the welding gun so as to be matched with the connecting part. The tangent plane that the connecting portion set up is convenient for adjust the welding wire before and after the welding to two welding wires can meet in the extension degree futilely when guaranteeing to weld.
Furthermore, the contact tube also comprises a sleeve, and an internal thread is arranged in the sleeve; the inner diameter of one end of the sleeve is the same as the outer diameter of the main body, the inner diameter of the other end of the sleeve is the same as the outer diameter of the tail end of the welding gun, and external threads which are meshed with the internal threads of the sleeve in the axial direction are arranged on the outer surface of the tail end of the welding gun. The main body can be clamped by the arranged sleeve, and the connecting part can be fixed on a connecting rod of the welding gun through threaded connection.
Further, an annular bulge is arranged between the connecting part and the main body, and the outer diameter of the bulge is larger than the inner diameter of one end of the sleeve and smaller than the outer diameter of the other end of the sleeve. The protrusion that sets up can block in the cover pipe, avoids the not hard up of contact tube. The protrusion that sets up can make the contact tip card in the cover intraductal, avoids not hard up in welding process.
The invention has the advantages that: 1. at least more than two welding wire holes are arranged in the same contact tube, so that the interference between two arcs can be avoided during the existing double-wire double-arc welding, and the stability of the welding quality is ensured; the welding wires are adjusted when more than two welding wire holes are arranged, so that the welding wires are convenient to use; 2. the vertical distance between the welding wire hole and the central line of the connecting part, the main body and the tip is gradually reduced, so that the welding wire hole is arranged in a V shape, the orientation of the welding wire is consistent, the welding wire is prevented from being forked in the welding process, and the penetration depth of welding is further improved; 3. the section arranged on the connecting part is convenient for adjusting the welding wires before and after welding so that the two welding wires can be connected in the dry elongation; 4. the arranged sleeve can better fix the contact tip in a connecting rod of the welding gun, and in addition, the sleeve is used for fixing, so that a connecting part is not required to be provided with threads, the thread melting caused by overlarge current during welding is avoided, and the service life of the contact tip is prolonged; when the contact tip is used in a welding robot, only one contact tip is used during welding, so that the contact tip is higher in operability and adjustability, and can better meet the welding requirement of a complex structure.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic view of the present invention (with welding wire).
Fig. 2 is a schematic structural diagram of a contact tip.
Fig. 3 is a top view of a contact tip.
Fig. 4 is a bottom view of the contact tip.
Fig. 5 is a schematic structural view of the sleeve.
Reference numerals: 1-body, 2-tip, 3-junction, 4-wire hole, 5-sleeve, 6-bump.
Detailed Description
In order to facilitate a better understanding of the invention, reference is made to the following examples, which are set forth to illustrate, but are not to be construed as the limit of the invention.
Examples
A double-wire single-arc welding contact tip and application thereof are disclosed as shown in figures 1-4, and the contact tip comprises a main body 1, a tip 2 arranged at one end of the main body 1, a connecting part 3 arranged at the other end of the main body 1, and at least two welding wire holes 4, wherein the welding wire holes 4 sequentially penetrate through the connecting part 3, the main body 1 and the tip 2.
As shown in fig. 1-4, the wire hole 4 is gradually spaced from the longitudinal centerline of the connecting portion 3, the body 1, and the tip 2.
As shown in fig. 1-4, the wire hole 4 is equidistant from the longitudinal centerlines of the connection portion 3, the body 1, and the tip 2 in the same horizontal section.
As shown in fig. 1-2, the number of wire holes 4 is set to two or four; when the number of the welding wire holes 4 is two, the middle point of the connecting line of the welding wire holes 4 is positioned on the longitudinal middle line of the connecting part 3, the main body 1 and the tip 2; when the number of the welding wire holes 4 is four, included angles formed by any two adjacent welding wire holes 4 on the same longitudinal section and the longitudinal center lines of the connecting part 3, the main body 1 and the tip 2 are equal.
As shown in figures 1-4, the extended lines of the wire holes 4 on the longitudinal central lines of the connecting part 3, the main body 1 and the tip 2 at the midpoints of any two connecting lines are connected, and the distance from the connected position of the extended lines of the wire holes 4 to the tip 2 is 15-30 mm.
As shown in fig. 1-4, any two wire holes 4 are centered 4.5-4.8mm apart at the location of the joint 3.
As shown in fig. 1-4, the center-to-center distance of any two wire holes 4 at the location of tip 2 is 1.0-1.4 mm.
As shown in fig. 2-3, the connecting portion 3 is provided with a plurality of cut surfaces, and a plurality of cut surfaces are oppositely arranged inside the end of the welding gun to match with the connecting portion 3.
As shown in fig. 1 and 5, the device further comprises a sleeve 5, wherein an internal thread is arranged in the sleeve 5; the inner diameter of one end of the sleeve 5 is the same as the outer diameter of the main body 1, the inner diameter of the other end of the sleeve 5 is the same as the outer diameter of the tail end of the welding gun, and the outer surface of the tail end of the welding gun is provided with an external thread which is meshed with the internal thread of the sleeve 5 in the axial direction.
As shown in fig. 1 to 4, an annular protrusion 6 is provided between the connection part 3 and the body 1, and an outer diameter of the protrusion 6 is larger than an inner diameter of one end of the sleeve 5 and smaller than an outer diameter of the other end.
The using method comprises the following steps: the installation steps of the contact tip comprise the steps of firstly detaching a nozzle on a connecting rod of a welding gun, enabling two welding wires to penetrate through two welding wire holes, inserting a connecting part of the contact tip into the connecting rod, properly rotating and adjusting the position of the connecting part of the contact tip to enable the two welding wires to be connected, then enabling a sleeve to penetrate through the contact tip to enable a protrusion of the contact tip to be clamped on the sleeve, mutually meshing an internal thread arranged on the sleeve and an external thread arranged on the connecting rod to fix the contact tip on the connecting rod, and finally installing and fixing the nozzle on the connecting rod of the welding gun.
After welding for a period of time, the two welding wires may not be connected, and after the temperature of the welding gun is reduced, the nozzle is detached, the sleeve is loosened, the connecting part of the contact tip is rotated properly to connect the two welding wires again, and finally the sleeve and the nozzle are screwed and fixed respectively.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. The term "comprising" is used to specify the presence of stated elements, but not to preclude the presence or addition of additional like elements in a process, method, article, or apparatus that comprises the stated elements.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a two silk single arc welding contact tip, includes main part (1), set up in most advanced (2) of main part (1) one end, set up in connecting portion (3) of main part (1) other end, its characterized in that still includes two at least welding wire holes (4), welding wire hole (4) pass in proper order connecting portion (3) main part (1) most advanced (2).
2. A contact tip for twin-wire single-arc welding according to claim 1, characterized in that the distance between the wire hole (4) and the longitudinal centerline of the connecting part (3), the main body (1) and the tip (2) is gradually reduced.
3. A contact tip for twin-wire single-arc welding according to claim 2, characterized in that the wire hole (4) is equidistant from the longitudinal median line of the connecting portion (3), the body (1) and the tip (2) in the same horizontal cross-section.
4. The contact tip for twin-wire single-arc welding according to claim 3, characterized in that the extension lines of the wire holes (4) at the middle points of any two connecting lines on the longitudinal center lines of the connecting part (3), the main body (1) and the tip (2) are connected, and the distance between the positions where the extension lines of the wire holes (4) are connected and the tip (2) is 15-30 mm.
5. A contact tip for twin-wire single-arc welding according to claim 4, characterized in that the distance between the centers of any two of said wire holes (4) at the location of the connecting portion (3) is 4.5-4.8 mm.
6. A contact tip for twin-wire single-arc welding according to claim 5, characterized in that the center distance of any two of said wire holes (4) at the position of the tip (2) is 1.0-1.4 mm.
7. A contact tip for twin-wire single arc welding according to any of claims 1-6, characterized in that said connecting part (3) is provided with several cut surfaces, and correspondingly inside said welding gun tip several cut surfaces are provided to match said connecting part (3), said cut surfaces being preferably 6.
8. The twin-wire single arc welding contact tip according to claim 7, further comprising a sleeve (5), wherein an internal thread is arranged in the sleeve (5); the inner diameter of one end of the sleeve (5) is the same as the outer diameter of the main body (1), the inner diameter of the other end of the sleeve (5) is the same as the outer diameter of the tail end of the welding gun, and external threads meshed with the internal threads of the sleeve (5) are arranged on the outer surface of the tail end of the welding gun.
9. Use of a contact tip for twin-wire single-arc welding, characterized in that a contact tip according to any one of claims 1-8 is applied to a welding gun.
10. The use of a contact tip for twin wire single arc welding according to claim 9, wherein the contact tip is used in a welding gun of a welding robot.
CN202110696944.7A 2021-06-23 2021-06-23 Double-wire single-arc welding contact tip and application thereof Pending CN113305405A (en)

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CN202110696944.7A CN113305405A (en) 2021-06-23 2021-06-23 Double-wire single-arc welding contact tip and application thereof

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Application Number Priority Date Filing Date Title
CN202110696944.7A CN113305405A (en) 2021-06-23 2021-06-23 Double-wire single-arc welding contact tip and application thereof

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CN113305405A true CN113305405A (en) 2021-08-27

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115401286A (en) * 2022-07-14 2022-11-29 唐山松下产业机器有限公司 Single-double-wire switching system and working method

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Publication number Priority date Publication date Assignee Title
JP2000301342A (en) * 1999-04-16 2000-10-31 Pop Rivet Fastener Kk Stud arc welding machine
AT512836A1 (en) * 2012-03-29 2013-11-15 Fronius Int Gmbh Welding device with two welding torches and welding process with two welding processes
CN105562902A (en) * 2016-03-14 2016-05-11 北京石油化工学院 Multi-purpose single-contact-tube twin-wire MIG/MAG welding gun
JP2019162646A (en) * 2018-03-19 2019-09-26 大陽日酸株式会社 Welding equipment
CN209850074U (en) * 2019-05-05 2019-12-27 河南中原辊轴有限公司 Single-arc double-wire surfacing wire feeding mechanism
CN210451312U (en) * 2019-05-31 2020-05-05 山东奥太电气有限公司 Parallel three-wire welding system
CN112427785A (en) * 2020-06-22 2021-03-02 何强 High-conductivity durable welding contact nozzle and method
CN112975224A (en) * 2021-03-08 2021-06-18 广西焊杰机器人技术有限公司 Automatic welding system for steel templates

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000301342A (en) * 1999-04-16 2000-10-31 Pop Rivet Fastener Kk Stud arc welding machine
AT512836A1 (en) * 2012-03-29 2013-11-15 Fronius Int Gmbh Welding device with two welding torches and welding process with two welding processes
CN105562902A (en) * 2016-03-14 2016-05-11 北京石油化工学院 Multi-purpose single-contact-tube twin-wire MIG/MAG welding gun
JP2019162646A (en) * 2018-03-19 2019-09-26 大陽日酸株式会社 Welding equipment
CN209850074U (en) * 2019-05-05 2019-12-27 河南中原辊轴有限公司 Single-arc double-wire surfacing wire feeding mechanism
CN210451312U (en) * 2019-05-31 2020-05-05 山东奥太电气有限公司 Parallel three-wire welding system
CN112427785A (en) * 2020-06-22 2021-03-02 何强 High-conductivity durable welding contact nozzle and method
CN112975224A (en) * 2021-03-08 2021-06-18 广西焊杰机器人技术有限公司 Automatic welding system for steel templates

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宋仁伯: "材料成形工艺学", 冶金工业出版社, pages: 8 - 37 *

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115401286A (en) * 2022-07-14 2022-11-29 唐山松下产业机器有限公司 Single-double-wire switching system and working method

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Application publication date: 20210827