Arc striking and extinguishing auxiliary device

Abstract

The utility model relates to the technical field of welding, and provides an arc striking and extinguishing auxiliary device. The arc striking and extinguishing auxiliary device comprises an auxiliary fixing part. The auxiliary fixing part is connected with an arc striking and extinguishing part, the arc striking and extinguishing part is suitable for conducting arc striking and arc extinguishing on the to-be-welded workpiece, and the arc striking and extinguishing part abuts against the end of a welding seam of the to-be-welded workpiece through the auxiliary fixing part so that the arc striking and extinguishing part can be movably connected with the to-be-welded workpiece. According to the arc striking and extinguishing auxiliary device, the arc striking and extinguishing piece and the workpiece to be welded can be disconnected through the auxiliary fixing part, the arc striking and extinguishing piece can be reused, and waste of auxiliary materials during welding is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of welding, in particular to an arc striking and extinguishing auxiliary device. Background Art

[0002] In order to avoid welding defects such as burn-through or shrinkage holes, arc-starting plates and arc-extinguishing plates with the same material thickness as the thin plate workpiece are required for the arc-starting and arc-ending points at the beginning and end of the thin plate butt weld. In the related art, the connection methods between the arc-starting plate, the arc-extinguishing plate and the thin plate mainly include integral arc-starting and arc-extinguishing plates and split arc-starting and arc-extinguishing plates. However, the welding method using arc-starting plates and arc-extinguishing plates in the related art has the problem of material and processing waste, as well as the problem of lengthening the process time. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the related art. To this end, the utility model proposes an arc striking and extinguishing auxiliary device, which can realize the reuse of the arc striking and extinguishing plate and the arc extinguishing plate, thereby reducing the waste of auxiliary materials during welding.

[0004] The arc striking and extinguishing auxiliary device according to the embodiment of the utility model comprises:

[0005] An auxiliary fixing component is connected with an arc-strike and arc-extinguishing component, and the arc-strike and arc-extinguishing component is suitable for striking and extinguishing the arc on the workpiece to be welded. The arc-strike and arc-extinguishing component abuts against the end of the workpiece to be welded through the auxiliary fixing component so that the arc-strike and arc-extinguishing component is movably connected to the workpiece to be welded.

[0006] According to the arc-strike and arc-extinguishing auxiliary device of the embodiment of the utility model, the arc-strike and arc-extinguishing component is abutted against the end of the weld of the workpiece to be welded through an auxiliary fixing component, so that the arc-strike and arc-extinguishing component and the workpiece to be welded are movably connected, so that when the workpiece to be welded is welded, the arc-strike and arc-extinguishing component can be used to strike and extinguish the arc on the workpiece to be welded, so as to ensure the welding quality of the workpiece to be welded.

[0007] Since the workpiece to be welded is movably connected to the arc-starting and extinguishing parts, when the welding work on the workpiece to be welded is completed, the connection between the arc-starting and extinguishing parts and the workpiece to be welded can be disconnected by using the auxiliary fixing parts, so that the workpiece to be welded can be removed. At this time, the arc-starting and extinguishing parts can be abutted against another group of workpieces to be welded through the auxiliary fixing parts, so that the arc-starting and extinguishing parts can be used to start and extinguish the arc on the other group of workpieces to be welded, so as to realize the reuse of the arc-starting and extinguishing parts, thereby reducing the waste of auxiliary materials during welding.

[0008] According to one embodiment of the utility model, the auxiliary fixing component is connected to a plurality of the arc-extinguishing parts, wherein a part of the arc-extinguishing parts are placed side by side on one side of the weld of the workpiece to be welded, and another part of the arc-extinguishing parts are placed side by side on the other side of the weld, wherein the number of the arc-extinguishing parts of one part is equal to the number of the arc-extinguishing parts of the other part.

[0009] According to one embodiment of the utility model, the auxiliary fixing component includes:

[0010] A limiting assembly connected to the arc-initiating and extinguishing member, wherein the limiting assembly is adapted to guide the arc-initiating and extinguishing member to move along the extending direction of the weld;

[0011] The pushing assembly is arranged at one end of the arc-extinguishing member away from the workpiece to be welded, and the pushing assembly is suitable for pushing the arc-extinguishing member to abut against the workpiece to be welded.

[0012] According to one embodiment of the utility model, the pushing assembly comprises:

[0013] Push the cylinder tightly;

[0014] Two connecting rods, the first ends of the connecting rods are connected to the pushing cylinder, and the two connecting rods are symmetrically arranged along the weld;

[0015] Two first push plates, wherein the first push plates are rotatably connected to the second end of the connecting rod, the two first push plates are symmetrically arranged along the weld, and the first push plates abut against the arc-extinguishing member.

[0016] According to one embodiment of the utility model, the connecting rod includes a first connecting part and a second connecting part, the first end of the first connecting part is connected to the pushing cylinder, the second end of the second connecting part is connected to the first push plate, and the second end of the first connecting part is connected to the first end of the second connecting part through a universal joint.

[0017] According to an embodiment of the present utility model, the connection position between the second end of the connecting rod and the first push plate is close to the welding seam.

[0018] According to one embodiment of the utility model, the limit assembly includes:

[0019] Fixed base;

[0020] Two clamping members are connected to the fixed base, the two clamping members are symmetrically arranged along the weld, and the two clamping members are suitable for approaching or moving away from each other to limit the arc-extinguishing member between the two clamping members.

[0021] According to one embodiment of the utility model, the limit assembly further includes:

[0022] A connecting screw rod, wherein a first end of the connecting screw rod is connected to one of the clamping members, and a second end of the connecting screw rod is connected to another of the clamping members.

[0023] According to an embodiment of the utility model, one of the fixed base and the clamping member is provided with a slide rail, the slide rail extends in a direction perpendicular to the weld, and the other of the fixed base and the clamping member is provided with a slider, the slide rail slidably cooperates with the slider;

[0024] Alternatively, the fixed base is provided with a slide groove, the slide groove extends in a direction perpendicular to the weld, and the clamping member is slidably disposed in the slide groove.

[0025] According to one embodiment of the utility model, the auxiliary fixing component includes:

[0026] A front flush component is arranged at one end of the arc-extinguishing component facing the workpiece to be welded, and the front flush component is suitable for pushing the arc-extinguishing component away from the workpiece to be welded.

[0027] According to one embodiment of the utility model, the front flush assembly comprises:

[0028] Flush cylinder;

[0029] The second push plate is connected to the flush cylinder, and the second push plate is suitable for abutting against the arc-extinguishing member.

[0030] The above one or more technical solutions in the embodiments of the utility model have at least one of the following technical effects:

[0031] According to the arc-strike and arc-extinguishing auxiliary device of the embodiment of the utility model, the arc-strike and arc-extinguishing component is abutted against the end of the weld of the workpiece to be welded through an auxiliary fixing component, so that the arc-strike and arc-extinguishing component and the workpiece to be welded are movably connected, so that when the workpiece to be welded is welded, the arc-strike and arc-extinguishing component can be used to strike and extinguish the arc on the workpiece to be welded, so as to ensure the welding quality of the workpiece to be welded.

[0032] Since the workpiece to be welded is movably connected to the arc-starting and extinguishing parts, when the welding work on the workpiece to be welded is completed, the connection between the arc-starting and extinguishing parts and the workpiece to be welded can be disconnected by using the auxiliary fixing parts, so that the workpiece to be welded can be removed. At this time, the arc-starting and extinguishing parts can be abutted against another group of workpieces to be welded through the auxiliary fixing parts, so that the arc-starting and extinguishing parts can be used to start and extinguish the arc on the other group of workpieces to be welded, so as to realize the reuse of the arc-starting and extinguishing parts, thereby reducing the waste of auxiliary materials during welding.

[0033] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 It is a schematic diagram of the three-dimensional structure of the arc striking and extinguishing auxiliary device provided in an embodiment of the utility model;

[0036] Figure 2 It is a three-dimensional structural schematic diagram of the auxiliary fixing component provided in an embodiment of the utility model;

[0037] Figure 3 It is a schematic diagram of the top view of the auxiliary fixing component provided in an embodiment of the utility model;

[0038] Figure 4 It is a schematic diagram of the connection structure when the arc-initiating and extinguishing member provided by the embodiment of the utility model abuts against the first inclined surface of the workpiece to be welded;

[0039] Figure 5 It is a schematic diagram of the connection structure when the arc striking and extinguishing member provided by the embodiment of the utility model abuts against the second inclined surface of the workpiece to be welded;

[0040] Figure 6 It is a schematic diagram of the connection structure between the connecting rod and the first push plate provided in an embodiment of the utility model.

[0041] Reference numerals:

[0042] 100, workpiece to be welded; 110, weld;

[0043] 200, auxiliary fixing component; 210, limiting component;

[0044] 211, fixed base; 212, clamping member; 213, connecting screw rod; 214, slide rail; 215, slider;

[0045] 220, pushing assembly; 221, pushing cylinder; 222, connecting rod; 223, first pushing plate;

[0046] 224, first connection part; 225, second connection part; 226, universal joint;

[0047] 230, front flush assembly; 231, flush cylinder; 232, second push plate;

[0048] 300. Arc striking and extinguishing parts; 400. Welding gun. DETAILED DESCRIPTION

[0049] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0050] In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0051] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0052] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0053] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0054] Combine the following Figures 1 to 6 The invention describes an arc striking and extinguishing auxiliary device provided in an embodiment of the utility model.

[0055] According to the embodiments of the present utility model, Figure 1 As shown, the arc striking and extinguishing auxiliary device includes an auxiliary fixing component 200. The auxiliary fixing component 200 is connected with an arc striking and extinguishing component 300, which is suitable for striking and extinguishing the arc on the workpiece 100 to be welded, and the arc striking and extinguishing component 300 abuts against the end of the weld 110 of the workpiece 100 to be welded through the auxiliary fixing component 200, so that the arc striking and extinguishing component 300 is movably connected with the workpiece 100 to be welded.

[0056] According to the arc-strike-and-extinguishing auxiliary device of the embodiment of the utility model, the arc-strike-and-extinguishing member 300 is abutted against the end of the weld 110 of the workpiece 100 to be welded by the auxiliary fixing member 200, so that the arc-strike-and-extinguishing member 300 and the workpiece 100 to be welded are movably connected, so that when the workpiece 100 to be welded is welded, the arc-strike-and-extinguishing member 300 can be used to strike and extinguish the arc on the workpiece 100 to be welded, so as to ensure the welding quality of the workpiece 100 to be welded.

[0057] Since the workpiece 100 to be welded is movably connected to the arc-strike-and-extinguishing member 300, when the welding work on the workpiece 100 to be welded is completed, the connection between the arc-strike-and-extinguishing member 300 and the workpiece 100 to be welded can be disconnected by using the auxiliary fixing member 200, so that the workpiece 100 to be welded can be removed. At this time, the arc-strike-and-extinguishing member 300 can be abutted against another group of workpieces 100 to be welded through the auxiliary fixing member 200, so that the arc-strike-and-extinguishing member 300 can be used to strike and extinguish the arc on the other group of workpieces 100 to be welded, so as to realize the reuse of the arc-strike-and-extinguishing member 300, thereby reducing the waste of auxiliary materials during welding.

[0058] In addition, the abutment relationship between the arc-extinguishing member 300 and the workpiece 100 to be welded is utilized to ensure that no gap is generated between the arc-extinguishing member 300 and the workpiece 100 to be welded, thereby avoiding welding defects such as welding burn-through during welding, and further ensuring the welding quality of the workpiece 100 to be welded.

[0059] It is understandable that when the arc-starting and extinguishing component 300 is abutted against the workpiece 100 to be welded by the auxiliary fixing component 200, it is necessary to ensure that the upper surface of the arc-starting and extinguishing component 300 is flush with the upper surface of the workpiece 100 to be welded, so as to ensure that the arc length does not change during arc starting and arc extinguishing, thereby causing arc instability and avoiding affecting the welding quality of the workpiece 100 to be welded.

[0060] It is understandable that the thickness of the arc-starting and extinguishing piece 300 is more than 3 mm greater than the thickness of the workpiece 100 to be welded, so as to ensure the requirement of reusable arc-starting and extinguishing piece 300, avoid damage to the arc-starting and extinguishing piece 300 during arc starting and arc extinguishing, and ensure the heat dissipation effect of the arc-starting and extinguishing piece 300.

[0061] It can be understood that when the welding arc is started, the welding gun 400 can start the arc above the arc-extinguishing member 300 which is more than 10 mm away from the end of the workpiece 100 to be welded. When the welding gun 400 completes the welding of the workpiece 100 to be welded and the welding gun 400 is more than 10 mm away from the workpiece 100 to be welded, the welding gun 400 can be extinguished to complete the welding work of the workpiece 100 to be welded.

[0062] It should also be noted that after the welding of the workpiece 100 is completed, more than 0.5 mm may be cut off from the edge of the weld 110 of the workpiece 100 to prevent other alloy elements from entering the weld 110 and affecting the structural strength of the weld 110 .

[0063] In one embodiment of the present invention, Figures 1 to 3 As shown, the auxiliary fixing component 200 is connected to a plurality of arc-extinguishing components 300, wherein a portion of the arc-extinguishing components 300 are placed in parallel on one side of the weld 110, and another portion of the arc-extinguishing components 300 are placed in parallel on the other side of the weld 110, wherein the number of the arc-extinguishing components 300 of one portion is equal to the number of the arc-extinguishing components 300 of the other portion.

[0064] It can be understood that by placing multiple arc-extinguishing members 300 on both sides of the weld 110 according to the above method, multiple arc-extinguishing members 300 are symmetrically placed on both sides along the weld 110. At this time, the overall thickness of the arc-extinguishing members 300 is greater than the arc width, so as to ensure that the arc-extinguishing members 300 have sufficient size to accommodate and stabilize the arc, thereby ensuring the stability of the arc when welding starts. At the same time, the arc-extinguishing member 300 with a larger thickness has a good heat dissipation capacity to transmit and dissipate the heat generated by the arc, and ensure the structural stability of the arc-extinguishing member 300, so as to ensure the reuse of the arc-extinguishing member 300.

[0065] Exemplarily, the workpiece 100 to be welded is, for example, two thin plates that are welded together, and the arc-initiating and extinguishing parts 300 are copper plates. There are 12 copper plates, 6 of which are placed on the upper side of the weld 110, and the other 6 are placed on the lower side of the weld 110, so that the 12 copper plates are placed symmetrically on both sides along the weld 110.

[0066] By stacking a plurality of copper plates in parallel as the arc-starting and arc-extinguishing member 300, the electrical conductivity of the copper plates is used to ensure the stability of the arc when the arc is started. At the same time, the electrical conductivity of the copper plates is used to ensure that the arc can stably transition to the workpiece 100 to be welded, and the arc can stably transition from the workpiece 100 to be welded to the arc-starting and arc-extinguishing member 300 when the arc is extinguished, thereby avoiding sudden changes in the arc caused by the external environment during arc starting or arc extinguishing, and effectively ensuring the welding quality of the welding gun 400 to the workpiece 100 to be welded.

[0067] Furthermore, since the plurality of copper plates are symmetrically arranged on both sides along the weld 110, the gap between the two copper plates located at the weld 110 is on the same horizontal line as the extension direction of the weld 110, thereby reducing the overlapping area between a copper plate and the weld 110, ensuring that the copper plate and the workpiece 100 to be welded are not fused together after welding, thereby facilitating the use of auxiliary positioning components to disconnect the connection between the workpiece 100 to be welded and the copper plate, and facilitating repeated arcing and arc extinguishing of the copper plate.

[0068] It is understandable that when two thin plates are butt-welded, the end portions may not be aligned. At this time, the copper plate placed on the upper side of the weld 110 is abutted against the thin plate above the weld 110, and the copper plate placed on the lower side of the weld 110 is abutted against the thin plate below the weld 110, so that the multiple copper plates are placed in an offset manner, thereby ensuring that there is no gap between the copper plate and the workpiece 100 to be welded, and further ensuring that when the arc transitions from the copper plate to the workpiece 100 to be welded, the weld 110 of the workpiece 100 to be welded will not be burned through, so as to further ensure the welding quality of the workpiece 100 to be welded.

[0069] In one embodiment of the present invention, Figure 2 and Figure 3 As shown, the auxiliary fixing component 200 includes a limiting assembly 210 and a pushing assembly 220. The limiting assembly 210 is connected to the arc-extinguishing member 300, and the limiting assembly 210 is suitable for guiding the arc-extinguishing member 300 to move along the extension direction of the weld 110. The pushing assembly 220 is arranged at one end of the arc-extinguishing member 300 away from the workpiece 100 to be welded, and the pushing assembly 220 is suitable for pushing the arc-extinguishing member 300 to abut against the workpiece 100 to be welded.

[0070] It is understandable that the arc-extinguishing member 300 is pushed close to the workpiece 100 to be welded by the pushing assembly 220, so as to make the arc-extinguishing member 300 abut against the end of the weld 110 of the workpiece 100 to be welded. In the process of the arc-extinguishing member 300 approaching the workpiece 100 to be welded, the arc-extinguishing member 300 is guided to move along the extension direction of the weld 110 by the limiting assembly 210, so as to ensure that the arc-extinguishing member 300 can abut against the predetermined position of the workpiece 100 to be welded without offset, thereby achieving accurate positioning of the abutting position between the arc-extinguishing member 300 and the workpiece 100 to be welded, effectively ensuring that there is no excessive gap between the arc-extinguishing member 300 and the workpiece 100 to be welded, further ensuring the stability of the arc when it transitions from the arc-extinguishing member 300 to the workpiece 100 to be welded, and reducing the generation of welding defects.

[0071] Specifically, Figure 2 and Figure 3 As shown, the pushing assembly 220 includes a pushing cylinder 221, two connecting rods 222 and two first push plates 223. The first end of the connecting rod 222 is connected to the pushing cylinder 221, and the two connecting rods 222 are symmetrically arranged along the weld 110. The first push plate 223 is rotatably connected to the second end of the connecting rod 222, and the two first push plates 223 are symmetrically arranged along the weld 110, and the first push plate 223 abuts against the arc-initiating and extinguishing member 300.

[0072] It can be understood that when the arc-extinguishing member 300 approaches the workpiece 100 to be welded, the pushing cylinder pushes the connecting rod 222 to extend, the connecting rod 222 pushes the first push plate 223 to move toward the workpiece 100 to be welded, and the first push plate 223 pushes the arc-extinguishing member 300 to approach the workpiece 100 to be welded, thereby making the arc-extinguishing member 300 abut against the workpiece 100 to be welded.

[0073] Since the two connecting rods 222 are symmetrically arranged along the weld 110, the two first push plates 223 are symmetrically arranged along the weld 110, that is, one of the connecting rods 222 and one of the first push plates 223 are located on one side of the weld 110, and the other connecting rod 222 and the other push plate are located on the other side of the weld 110, so that one of the first push plates 223 can push one part of the arc-extinguishing parts 300 to move toward the workpiece 100 to be welded, and the other first push plate 223 can push the other part of the arc-extinguishing parts 300 to move toward the workpiece 100 to be welded, so that one part of the arc-extinguishing parts 300 and the other part of the arc-extinguishing parts 300 can move separately and independently, so that the two parts of the arc-extinguishing parts 300 can respectively adapt to the ends of the two workpieces 100 to be welded, so as to ensure that the multiple arc-extinguishing parts 300 can adapt to the phenomenon of uneven end grouping of the workpieces 100 to be welded, and further ensure that there is no gap between the arc-extinguishing parts 300 and the workpieces 100 to be welded.

[0074] In addition, since the first push plate 223 is rotatably connected to the second end of the connecting rod 222, when the end of the workpiece 100 to be welded is a bevel, the first push plate 223 can push the multiple arc-extinguishing pieces 300 to move, and make the multiple arc-extinguishing pieces 300 abut against the ends of the arc-extinguishing pieces 300 one by one along the weld 110 in the direction of the workpiece 100 to be welded, and at the same time, the first push plate 223 rotates relative to the second end of the connecting rod 222, so that the multiple arc-extinguishing pieces 300 can adapt to the bevel structure of the end of the workpiece 100 to be welded, and at the same time, the gap between the arc-extinguishing pieces 300 and the workpiece 100 to be welded is reduced, thereby further improving the welding quality of the workpiece 100 to be welded.

[0075] It can be understood that the thickness of each arc-extinguishing member 300 should be determined according to the maximum inclination degree of the actual bevel structure of the workpiece 100 to be welded. For example, the thickness of each arc-extinguishing member 300 should not be less than 1.5 mm to ensure that when the arc-extinguishing member 300 abuts against the bevel structure of the workpiece 100 to be welded, the gap between the entire arc-extinguishing member 300 and the workpiece 100 to be welded is less than 0.1 mm.

[0076] In one embodiment of the present invention, Figures 3 to 5 As shown, the connecting rod 222 includes a first connecting part 224 and a second connecting part 225, the first end of the first connecting part 224 is connected to the pushing cylinder 221, the second end of the second connecting part 225 is connected to the first pushing plate 223, and the second end of the first connecting part 224 is connected to the first end of the second connecting part 225 via a universal joint 226.

[0077] It is understandable that the first connecting portion 224 and the second connecting portion 225 are connected by the universal joint 226 to realize the rotatable connection between the first push plate 223 and the connecting rod 222. When the end of the workpiece 100 to be welded is a bevel, and the bevel faces the arc-extinguishing member 300, in order to adapt to the bevel of the workpiece 100 to be welded and reduce the abutment gap between the workpiece 100 to be welded and the arc-extinguishing member 300, the connection angle between the first connecting portion 224 and the second connecting portion 225 is changed by the universal joint 226, so that the first push plate 223 is tilted toward the direction of the pushing cylinder 221, thereby ensuring that the plurality of arc-extinguishing members 300 can follow the tilt direction of the bevel of the workpiece 100 to be welded, so that the plurality of arc-extinguishing members 300 can adapt to the bevel structure of the workpiece 100 to be welded toward the arc-extinguishing member 300, and ensure that there is no large gap between the arc-extinguishing member 300 and the workpiece 100 to be welded.

[0078] Exemplarily, in this embodiment, the universal joint 226 is a ten-bit one.

[0079] Illustratively, in this embodiment, the first connection portion 224 and the second connection portion 225 are both connection shafts, and the first end of the first connection portion 224 is fixedly connected to the first push plate 223 .

[0080] It should be noted that the rotatable connection between the first push plate 223 and the connecting rod 222 is not limited to being realized by the universal joint 226, and a rotating shaft structure can also be formed at the connection portion between the first push plate 223 and the connecting rod 222, and the first push plate 223 and the connecting rod 222 are rotatably connected through the rotating shaft structure. At the same time, the first push plate 223 forms an avoidance groove, and when the first push plate 223 tilts toward the direction of the pushing cylinder 221 under the action of the multiple arc-initiating and extinguishing members 300, the avoidance groove prevents interference between the first push plate 223 and the connecting rod 222, thereby ensuring that the first push plate 223 does not limit the tilting action of the multiple arc-initiating and extinguishing members 300 to adapt to the bevel structure of the workpiece 100 to be welded.

[0081] In one embodiment of the present invention, Figures 4 to 6 As shown, the connection position between the second end of the connecting rod 222 and the first push plate 223 is close to the welding seam 110 .

[0082] It is understandable that, by placing the connection position between the connecting rod 222 and the first push plate 223 close to the weld 110, the connection between the connecting rod 222 and the first push plate 223 forms an eccentric structure. Then, when the first push plate 223 pushes the arc-striking member 300 to abut against the workpiece 100 to be welded, the force between the connecting rod 222 and the first push plate 223 can be close to the weld 110, so as to further apply the force to the arc-striking member 300 close to the weld 110, thereby ensuring that the arc-striking member 300 close to the weld 110 can abut against the weld 110 of the workpiece 100 to be welded, reducing the gap between the arc-striking member 300 close to the weld 110 and the workpiece 100 to be welded, thereby ensuring the arc-striking effect of the arc-striking member 300 close to the weld 110 on the arc, and improving the stability of the arc when the arc is transferred from the arc-striking member 300 to the workpiece 100 to be welded.

[0083] It is understandable that if Figure 5 As shown, when the oblique side of the workpiece 100 to be welded is inclined away from the arc-extinguishing member 300, since the first push plate 223 is not subjected to a force in the direction of the arc-extinguishing member 300, the first push plate 223 is inclined toward the arc-extinguishing member 300. At this time, by bringing the connection position between the second end of the connecting rod 222 and the first push plate 223 close to the weld 110, the arc-extinguishing member 300 close to the weld 110 can be abutted against the weld 110 of the workpiece 100 to be welded, reducing the gap between the arc-extinguishing member 300 and the workpiece 100 to be welded, thereby ensuring that the plurality of arc-extinguishing members 300 can adapt to the oblique side structure of the workpiece 100 to be welded away from the arc-extinguishing member 300, reducing the gap between the arc-extinguishing member 300 and the workpiece 100 to be welded, and further improving the welding quality of the workpiece 100 to be welded.

[0084] In one embodiment of the present invention, Figures 1 to 3As shown, the limiting assembly 210 includes a fixed base 211 and two clamping members 212. The two clamping members 212 are connected to the fixed base 211, and the two clamping members 212 are symmetrically arranged about the weld 110. The two clamping members 212 are suitable for approaching or moving away from each other to limit the arc-extinguishing member 300 between the two clamping members 212.

[0085] It can be understood that by arranging the two clamping members 212 symmetrically along the weld 110, the two clamping members 212 are used to limit the arc-extinguishing member 300, thereby limiting the moving direction of the arc-extinguishing member 300 between the two clamping members 212, so that the arc-extinguishing member 300 moves along the extension direction of the weld 110 and cannot move in other directions, thereby ensuring that when the pushing mechanism pushes the arc-extinguishing member 300 to move toward the workpiece 100 to be welded, the arc-extinguishing member 300 can abut against the position of the weld 110 of the workpiece 100 to be welded without causing any deviation, thereby achieving accurate positioning between the arc-extinguishing member 300 and the weld 110 of the workpiece 100 to be welded.

[0086] In addition, since the two clamping members 212 are symmetrically arranged along the weld 110, when the two clamping members 212 approach or move away from each other, the two clamping members 212 can achieve bilaterally symmetrical movement about the weld 110, so as to further ensure that the joint gap between the two arc-extinguishing members 300 located in the middle can be ensured to be on the same horizontal line as the weld 110, thereby further ensuring that the overlapping area between the arc-extinguishing members 300 and the weld 110 is small, ensuring that the copper plate and the workpiece 100 to be welded are not completely fused and connected after welding.

[0087] It should be noted that when the arc-striking and extinguishing member 300 abuts against the workpiece 100 to be welded and the workpiece 100 to be welded is welded, the two clamping members 212 clamp the arc-striking and extinguishing member 300 to ensure that the arc-striking and extinguishing member 300 does not move. At this time, a heat dissipation gap is reserved between the two clamping members 212, and the size of the heat dissipation gap is less than 2 / 3 of the thickness of one arc-striking and extinguishing member 300, so as to ensure heat dissipation and heat transfer between the arc-striking and extinguishing members 300.

[0088] In one embodiment of the present invention, Figure 1 and Figure 2 As shown, the limiting assembly 210 further includes a connecting screw rod 213 . A first end of the connecting screw rod 213 is connected to one of the clamping members 212 , and a second end of the connecting screw rod 213 is connected to the other clamping member 212 .

[0089] It can be understood that the two clamping members 212 are connected by the connecting screw 213, and then the two clamping members 212 can be made to move symmetrically on both sides of the weld 110 by rotating the connecting screw 213. At the same time, the clamping force of the clamping member 212 on the arc-extinguishing member 300 is adjusted by adjusting the tightening force of the connecting screw 213. Then, when the pushing assembly 220 moves the arc-extinguishing member 300 toward the workpiece 100 to be welded, by adjusting the clamping force of the clamping member 212, the arc-extinguishing member 300 can have the degree of freedom along the extension direction of the weld 110, and during welding, the clamping member 212 can fix the arc-extinguishing member 300 to prevent the arc-extinguishing member 300 from moving.

[0090] It should be noted that the connection between the two clamping members 212 is not limited to being connected via the connecting screw 213 . Electric push rods may also be provided in both clamping members 212 to push the two clamping members 212 to move in both directions.

[0091] In one embodiment of the present invention, in order to ensure that the two clamping members 212 are close to or away from each other, the clamping members 212 can be slidably connected to the fixed base 211. The specific setting method of the sliding connection between the clamping members 212 and the fixed base 211 can adopt the following two setting methods:

[0092] The first setting method is Figure 1 and Figure 2 As shown, one of the fixed base 211 and the clamping member 212 is provided with a slide rail 214, which extends in a direction perpendicular to the weld 110, and the other of the fixed base 211 and the clamping member 212 is provided with a slider 215, which is slidably matched with the slide rail 214.

[0093] It is understandable that the sliding connection between the clamping member 212 and the fixed base 211 is achieved by the sliding cooperation between the slide rail 214 and the slider 215. At the same time, the slide rail 214 is extended in a direction perpendicular to the weld 110, and the two clamping members 212 are symmetrically arranged about the weld 110, so as to ensure that the two clamping members 212 can achieve bilateral symmetrical movement about the weld 110.

[0094] In a second configuration, the fixed base 211 is provided with a slide groove, the slide groove extends in a direction perpendicular to the weld 110 , and the clamping member 212 is slidably disposed in the slide groove.

[0095] It is understandable that the sliding connection between the clamping member 212 and the slide groove is realized by the sliding cooperation between the clamping member 212 and the fixed base 211. At the same time, since the slide groove extends in a direction perpendicular to the weld 110, the two clamping members 212 are symmetrically arranged with respect to the weld 110, thereby ensuring that the two clamping members 212 can realize bilateral symmetrical movement with respect to the weld 110.

[0096] It should be noted here that the connection between the clamping member 212 and the fixed base 211 is not limited to a sliding connection. A gear structure can also be set in one of the clamping member 212 and the fixed base 211, and a rack structure can be set in the other of the clamping member 212 and the fixed base 211. The clamping members 212 can be moved away from or closer to each other through the cooperation between the gear and the rack.

[0097] In one embodiment of the present invention, Figures 1 to 3 As shown, the auxiliary fixing component 200 includes a front flush component 230. The front flush component 230 is disposed at one end of the arc-extinguishing component 300 facing the workpiece 100 to be welded, and the front flush component 230 is suitable for pushing the arc-extinguishing component 300 away from the workpiece 100 to be welded.

[0098] It can be understood that by arranging the front flush component 230 at one end of the arc-starting and extinguishing piece 300 facing the workpiece 100 to be welded, when the welding of the workpiece 100 to be welded is completed, the arc-starting and extinguishing piece 300 can be pushed away from the workpiece 100 to be welded by the front flush component 230 to disconnect the connection between the arc-starting and extinguishing piece 300 and the workpiece 100 to be welded, thereby facilitating the use of the arc-starting and extinguishing piece 300 to start and extinguish the arc on another group of workpieces 100 to be welded, thereby realizing the reuse of the arc-starting and extinguishing piece 300.

[0099] In one embodiment of the present invention, Figure 2 and Figure 3 As shown, the front flush assembly 230 includes a flush cylinder 231 and a second push plate 232. The second push plate 232 is connected to the flush cylinder 231, and the second push plate 232 is suitable for abutting against the arc-extinguishing member 300.

[0100] It can be understood that when it is necessary to push the arc-extinguishing member 300 away from the workpiece 100 to be welded, the flush cylinder 231 can be driven to operate, so that the flush cylinder 231 drives the second push plate 232 to move, so that the second push plate 232 abuts against the arc-extinguishing member 300, thereby utilizing the movement of the second push plate 232 to disconnect the connection between the arc-extinguishing member 300 and the workpiece 100 to be welded, and retract the arc-extinguishing member 300 to prepare for subsequent arc-strike operation on another group of workpieces 100 to be welded.

[0101] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. An arc striking and extinguishing auxiliary device, characterized in that: include: An auxiliary fixing component is connected with an arc-strike and arc-extinguishing component, and the arc-strike and arc-extinguishing component is suitable for striking and extinguishing the arc on the workpiece to be welded. The arc-strike and arc-extinguishing component abuts against the end of the workpiece to be welded through the auxiliary fixing component so that the arc-strike and arc-extinguishing component is movably connected to the workpiece to be welded.

2. The arc striking and extinguishing auxiliary device according to claim 1, characterized in that: The auxiliary fixing component is connected to a plurality of the arc-extinguishing components, wherein a portion of the arc-extinguishing components are placed in parallel on one side of the weld of the workpiece to be welded, and another portion of the arc-extinguishing components are placed in parallel on the other side of the weld, wherein the number of the arc-extinguishing components of one portion is equal to the number of the arc-extinguishing components of the other portion.

3. The arc striking and extinguishing auxiliary device according to claim 2, characterized in that: The auxiliary fixing component comprises: A limiting assembly connected to the arc-initiating and extinguishing member, wherein the limiting assembly is adapted to guide the arc-initiating and extinguishing member to move along the extending direction of the weld; The pushing assembly is arranged at one end of the arc-extinguishing member away from the workpiece to be welded, and the pushing assembly is suitable for pushing the arc-extinguishing member to abut against the workpiece to be welded.

4. The arc striking and extinguishing auxiliary device according to claim 3, characterized in that: The pushing assembly comprises: Push the cylinder tightly; Two connecting rods, the first ends of the connecting rods are connected to the pushing cylinder, and the two connecting rods are symmetrically arranged along the weld; Two first push plates, wherein the first push plates are rotatably connected to the second end of the connecting rod, the two first push plates are symmetrically arranged along the weld, and the first push plates abut against the arc-extinguishing member.

5. The arc striking and extinguishing auxiliary device according to claim 4, characterized in that: The connecting rod includes a first connecting part and a second connecting part, the first end of the first connecting part is connected to the pushing cylinder, the second end of the second connecting part is connected to the first push plate, and the second end of the first connecting part is connected to the first end of the second connecting part through a universal joint.

6. The arc striking and extinguishing auxiliary device according to claim 4, characterized in that: The connection position between the second end of the connecting rod and the first push plate is close to the welding seam.

7. The arc striking and extinguishing auxiliary device according to any one of claims 3 to 6, characterized in that: The limiting component comprises: Fixed base; Two clamping members are connected to the fixed base, the two clamping members are symmetrically arranged along the weld, and the two clamping members are suitable for approaching or moving away from each other to limit the arc-extinguishing member between the two clamping members.

8. The arc striking and extinguishing auxiliary device according to claim 7, characterized in that: The limiting component also includes: A connecting screw rod, wherein a first end of the connecting screw rod is connected to one of the clamping members, and a second end of the connecting screw rod is connected to another of the clamping members.

9. The arc striking and extinguishing auxiliary device according to claim 7, characterized in that: One of the fixed base and the clamping member is provided with a slide rail, the slide rail extends in a direction perpendicular to the weld, and the other of the fixed base and the clamping member is provided with a slider, the slide rail and the slider are slidably matched; Alternatively, the fixed base is provided with a slide groove, the slide groove extends in a direction perpendicular to the weld, and the clamping member is slidably disposed in the slide groove.

10. The arc striking and extinguishing auxiliary device according to any one of claims 1 to 6, characterized in that: The auxiliary fixing component comprises: A front flush component is arranged at one end of the arc-extinguishing component facing the workpiece to be welded, and the front flush component is suitable for pushing the arc-extinguishing component away from the workpiece to be welded.

11. The arc striking and extinguishing auxiliary device according to claim 10, characterized in that: The front flush assembly comprises: Flush cylinder; The second push plate is connected to the flush cylinder, and the second push plate is suitable for abutting against the arc-extinguishing member.

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