Welding assembly and welding device

Abstract

The embodiment of the utility model provides a welding assembly and a welding device, the welding assembly comprises a mounting support, a welding gun and a cleaning mechanism, and the welding gun is mounted on the mounting support and used for welding a target object; the cleaning mechanism is connected to the mounting support and used for cleaning an area to be welded of the welding gun when welding is started and in the welding process, and the cleaning mechanism is configured to be capable of rotating relative to the mounting support and staying at a preset position so as to adjust the distance between the cleaning area of the cleaning mechanism and the welding area of the welding gun. According to the invention, the welding yield can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of batteries, and more particularly, to a welding assembly and a welding device. BACKGROUND

[0002] Battery cells are widely used in electronic devices, such as mobile phones, notebook computers, electric vehicles, electric cars, electric planes, electric ships, electric toy cars, electric toy ships, electric toy planes, electric tools, and the like.

[0003] In the process of battery manufacturing, a welding process is often used. How to improve the yield of welding is a research direction in the field of battery technology. UTILITY MODEL CONTENT

[0004] The present application provides a welding assembly and a welding device, which can improve the yield of welding.

[0005] The present application provides a welding assembly, which comprises a mounting bracket, a welding gun and a cleaning mechanism. The welding gun is mounted on the mounting bracket and is used for welding a target object. The cleaning mechanism is connected to the mounting bracket and is used for cleaning the area to be welded by the welding gun when the welding is started and during the welding process. The cleaning mechanism is configured to be rotatable relative to the mounting bracket and to stay at a preset position, so as to adjust the distance between the cleaning area of the cleaning mechanism and the welding area of the welding gun.

[0006] In the above technical solution, the welding assembly of the present application connects the cleaning mechanism to the welding gun. The cleaning mechanism cleans the metal plating layer or impurities of the area to be welded when the welding is started and during the welding process. The cleaning and welding are performed simultaneously. The cleaning almost does not occupy additional working hours, thereby reducing the influence of the metal plating layer or impurities on the welding, reducing the generation of air hole and burst hole defects, improving the yield of welding and the production efficiency of batteries.

[0007] Moreover, the cleaning mechanism is configured to be rotatable relative to the mounting bracket, so as to adjust the distance between the cleaning area of the cleaning mechanism and the welding area of the welding gun. In this way, the cleaning area and the welding area are close to each other, so that the area to be welded can be almost cleaned. Moreover, the influence of the vapor formed by the metal plating layer on the welding can be reduced, thereby further improving the yield of welding.

[0008] In some embodiments, the welding assembly comprises a pivot shaft and a mounting seat. The pivot shaft is pivotally connected to the mounting seat. The mounting seat is fixedly connected to the mounting bracket. The cleaning mechanism is fixedly connected to the pivot shaft. The pivot shaft is used to swing the cleaning mechanism.

[0009] In the technical scheme, the rotating shaft drives the cleaning mechanism to swing to adjust the distance between the cleaning area and the welding area, which is simple and reliable, and facilitates the adjustment of the swing range of the cleaning mechanism.

[0010] In some embodiments, the welding assembly further comprises a fixing member, a first end of the fixing member is fixed to the cleaning mechanism, and a second end of the fixing member is fixedly connected with the rotating shaft.

[0011] In the technical scheme, the rotating shaft and the cleaning mechanism are connected through the fixing member, which is convenient to connect.

[0012] In some embodiments, the fixing member is detachably connected with the cleaning mechanism, and / or the first end of the fixing member is sleeved on the cleaning mechanism.

[0013] In the technical scheme, the fixing member and the cleaning mechanism are detachably connected, which facilitates the maintenance and replacement of the cleaning mechanism. The fixing member is sleeved on the cleaning mechanism to achieve connection, which makes the connection of the cleaning mechanism and the fixing member more secure.

[0014] In some embodiments, the welding assembly further comprises a driving member, the driving member is connected with the rotating shaft and is used to drive the rotating shaft to rotate.

[0015] In the technical scheme, the driving member is arranged to drive the rotation, which not only saves manpower, but also controls more accurately and is more convenient to use.

[0016] In some embodiments, the cleaning mechanism comprises a laser head, the laser head is connected with the mounting bracket and is configured to rotate relative to the mounting bracket and stay at a preset position, and the laser head is used to emit laser.

[0017] In the technical scheme, the cleaning mechanism is arranged to comprise a laser head, and the cleaning effect is better by using laser.

[0018] In some embodiments, the mounting bracket is detachably connected with the welding gun.

[0019] In the technical scheme, the welding gun and the mounting bracket can be separated conveniently, which facilitates the maintenance of the welding gun.

[0020] In some embodiments, the mounting bracket comprises a first bracket and a second bracket, the first bracket is detachably connected with the welding gun, the cleaning mechanism is rotatably arranged on the second bracket, and the first bracket is detachably connected with the second bracket.

[0021] In the technical scheme, the mounting bracket is divided into the first bracket and the second bracket which are detachably connected, when the first bracket or the second bracket is damaged during use, the whole mounting bracket does not need to be replaced, only the first bracket or the second bracket needs to be replaced, thereby reducing the maintenance cost. In addition, different models of the first bracket or the second bracket can be replaced according to the use requirement.

[0022] In some embodiments, the first bracket comprises a first plate body and a second plate body connected with each other, the first plate body is sleeved on the welding gun and detachably connected with the welding gun, and the second plate body is located on a side of the first plate body close to the cleaning mechanism and detachably connected with the second bracket.

[0023] In the technical scheme, the first plate body is sleeved on the welding gun, thereby increasing the structural strength of the connection. The second plate body is arranged on the side of the first plate body close to the cleaning mechanism, thereby facilitating the connection with the second bracket.

[0024] In some embodiments, the first bracket further comprises a third plate body, the first plate body and the second plate body are arranged in parallel, and opposite ends of the third plate body are connected to the first plate body and the second plate body at an angle, respectively.

[0025] In the technical scheme, the third plate body is arranged, so that the first plate body and the second plate body are arranged in parallel, the second plate body and the second bracket can be connected in the vertical direction, thereby facilitating the installation.

[0026] In some embodiments, the second bracket comprises a fourth plate body and a fifth plate body connected with each other, the fourth plate body is detachably connected with the second plate body, and the fifth plate body is located on a side of the fourth plate body close to the cleaning mechanism, and the cleaning mechanism is rotatably arranged on the fifth plate body.

[0027] In the technical scheme, the second bracket is arranged to comprise the fourth plate body and the fifth plate body, the fourth plate body facilitates the connection with the first bracket, and the fifth plate body facilitates the arrangement of the cleaning mechanism.

[0028] In some embodiments, the welding gun is an arc welding gun.

[0029] In the technical scheme, the welding gun is arranged as the arc welding gun, the arc welding gun is more easily affected by impurities or vapor formed by the metal anticorrosive layer when arc welding is performed, and therefore the arrangement of the cleaning mechanism can effectively improve the welding quality and improve the yield of welding.

[0030] In some embodiments, the target object is a battery box, and the surface of the battery box for the at least one component to be welded is provided with a zinc plating layer.

[0031] In the technical scheme, for the component provided with the zinc plating layer, the zinc plating layer is more likely to form metal vapor during welding, thereby reducing the welding quality, and therefore the cleaning mechanism can clean the zinc plating layer, thereby improving the welding quality.

[0032] In a second aspect, the embodiments of the present application further provide a welding device, comprising the welding assembly and the robot, the robot being connected with the welding gun and used to drive the welding assembly to move. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly introduced as follows. Obviously, the drawings described below are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of the drawings.

[0034] Figure 1 The structural schematic diagram of the welding assembly provided by some embodiments of the present application is shown in the figure.

[0035] Figure 2 The structural schematic diagram of the welding assembly provided by some embodiments of the present application is shown in the figure. Figure 1 The structural schematic diagram of the welding assembly provided by some embodiments of the present application is shown in the figure.

[0036] Figure 3 The structural schematic diagram of the welding device provided by some embodiments of the present application is shown in the figure.

[0037] The specific embodiments are as follows:

[0038] 100, welding device; 200, robot; 300, welding assembly;

[0039] 1, mounting bracket; 11, first bracket; 111, first plate body; 112, second plate body; 113, third plate body; 12, second bracket; 121, fourth plate body; 122, fifth plate body;

[0040] 2, welding gun;

[0041] 3, cleaning mechanism;

[0042] 4, rotating shaft;

[0043] 5, mounting seat;

[0044] 6, fixing member; 61, first end; 62, second end;

[0045] 7, laser. DETAILED DESCRIPTION

[0046] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0047] Unless otherwise defined, all technical and scientific terms used in the present application have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs; the terms used in the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above description of drawings are intended to cover non-exclusive inclusion. The terms "first", "second" and the like in the specification and claims of the present application and the above description of drawings are used to distinguish different objects, not to describe a particular order or primary and secondary relationship.

[0048] In the present application, the term "embodiment" means that the specific features, structures or characteristics described in connection with the embodiment can be included in at least one embodiment of the present application. The phrase appears at various places in the specification does not necessarily refer to the same embodiment, nor is it mutually exclusive or alternative to other embodiments.

[0049] In the description of the present application, it should be noted that unless otherwise specified and limited, the terms "mount", "connect", "connection", "attach" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be direct connection, or indirect connection through intermediate medium, or internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0050] In the present application, the term "and / or" is only a description of the association relationship between the associated objects, which means that there can be three kinds of relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. In addition, the character " / " in the present application generally represents an "or" relationship between the front and rear associated objects.

[0051] In the embodiments of the present application, the same reference signs represent the same parts, and for the sake of brevity, detailed description of the same parts is omitted in different embodiments. It should be understood that the thickness, length and width of various components in the embodiments of the present application shown in the drawings, as well as the overall thickness, length and width of the integrated device, are only exemplary and should not constitute any limitation on the present application.

[0052] The "multiple" appearing in the present application refers to two or more (including two).

[0053] In welding the components in the battery (for example, the box body adopting the galvanized plate), the welding process is often adopted. When welding is performed by using the welding gun, the metal plating layer or impurities on the surface of the component will volatilize during welding, and the volatilized metal vapor affects the welding stability, causing defects such as pores and blowholes, which need to be repaired to meet the air tightness requirements, thereby reducing the yield of welding and the production efficiency of the battery.

[0054] In view of this, the present application provides a welding assembly, which connects a cleaning mechanism on the welding gun, and uses the cleaning mechanism to clean the metal plating layer or impurities on the area to be welded in the welding state, so as to reduce the influence of the metal plating layer or impurities on welding, reduce the generation of defects such as pores and blowholes, and improve the yield of welding and the production efficiency of the battery.

[0055] Figure 1 The structure schematic diagram of the welding assembly provided by some embodiments of the present application is shown.

[0056] As shown in Figure 1 The present application also provides a welding assembly 300, which includes a mounting bracket 1, a welding gun 2 and a cleaning mechanism 3. The welding gun 2 is mounted on the mounting bracket 1 and is used for welding a target object. The cleaning mechanism 3 is connected to the mounting bracket 1 and is used for cleaning the area to be welded by the welding gun 2 when welding is started and during welding. The cleaning mechanism 3 is configured to be rotatable relative to the mounting bracket 1 and to stay at a preset position, so as to adjust the distance between the cleaning area of the cleaning mechanism 3 and the welding area of the welding gun 2.

[0057] The mounting bracket 1 and the welding gun 2 of the present embodiment can be connected by welding or threaded connection.

[0058] The cleaning mechanism 3 of the present embodiment cleans the area to be welded by the welding gun when welding is started and during welding, that is, the cleaning mechanism 3 is arranged at the front side of the welding gun 2 in the moving direction. The cleaning mechanism 3 first cleans the area to be welded by the target object, and then the welding gun 2 performs welding. The cleaning mechanism 3 and the welding gun 2 work together.

[0059] The cleaning mechanism 3 of the present embodiment can emit plasma for cleaning, or can emit laser 7 for cleaning.

[0060] The welding gun 2 of the present embodiment can adopt the electric arc welding mode, or can adopt the laser welding, gas welding, resistance welding or ultrasonic welding mode.

[0061] The cleaning mechanism 3 of the embodiment can rotate relative to the mounting support 1 and stay at a preset position to adjust the distance between the cleaning area of the cleaning mechanism 3 and the welding area of the welding gun 2, i.e. after the distance between the cleaning area and the welding area of the welding gun 2 is adjusted, the cleaning mechanism 3 stays at the preset position and is in a static state relative to the welding gun 2.

[0062] For example, the welding assembly 300 comprises a rotating rod, the rotating rod is pivotally connected to the mounting support 1, the cleaning mechanism 3 is fixedly connected to the end of the rotating rod, a gas cylinder is arranged on the mounting support 1, the driving end of the gas cylinder is hingedly connected to the cleaning mechanism 3, the extension and contraction of the gas cylinder can drive the cleaning mechanism 3 to swing around the fulcrum, and the distance between the cleaning area of the cleaning mechanism 3 and the welding area of the welding gun 2 is adjusted.

[0063] The welding assembly 300 of the embodiment connects the cleaning mechanism 3 to the welding gun 2, and uses the cleaning mechanism 3 to clean the metal coating or impurities of the area to be welded at the start of welding and during the welding process. The cleaning almost does not occupy additional working hours, thereby reducing the influence of the metal coating or impurities on welding, reducing the generation of blowhole and burst hole defects, improving the welding yield rate, and improving the production efficiency of the battery.

[0064] In addition, the cleaning mechanism 3 is arranged to be rotatable relative to the mounting support 1 to adjust the distance between the cleaning area of the cleaning mechanism 3 and the welding area of the welding gun 2. In this way, the cleaning area and the welding area can be relatively close, so that the area to be welded can be almost cleaned, and the influence of the metal coating vapor on welding can be reduced, and the welding yield rate can be further improved.

[0065] Specifically, the distance between the cleaning area and the welding area of the welding gun 2 is determined according to actual needs. For example, the distance between the cleaning area of the cleaning mechanism 3 and the welding area of the welding gun 2 should be small to clean the area to be welded as much as possible, but the influence of the metal vapor on the molten pool should also be reduced, and the distance cannot be too close. Alternatively, the distance between the cleaning area of the cleaning mechanism 3 and the welding area of the welding gun 2 is 1mm-5mm.

[0066] Figure 2 For Figure 1 The structural schematic view of the welding assembly shown in the figure is from another angle.

[0067] Please refer to Figure 2 In some embodiments, the welding assembly 300 comprises a rotating shaft 4 and a mounting seat 5, the rotating shaft 4 is pivotally connected to the mounting seat 5, the mounting seat 5 is fixedly connected to the mounting support 1, the cleaning mechanism 3 is fixedly connected to the rotating shaft 4, and the rotating shaft 4 is used to drive the cleaning mechanism 3 to swing.

[0068] In this embodiment, the rotating shaft 4 is pivotally connected to the mounting base 5, meaning that the rotating shaft 4 rotates on the mounting base 5. For example, the mounting base 5 has two oppositely arranged mounting holes, and both ends of the rotating shaft 4 are located within these mounting holes. The mounting holes can be through holes or blind holes.

[0069] The fixed connection mentioned in this embodiment and below refers to the connection method that fixes the two together. It may include a detachable connection, such as a threaded connection, or a non-detachable connection method, such as welding, or fixed by other components.

[0070] In this embodiment, the extension direction of the rotating shaft 4 is configured to intersect the moving direction. Optionally, the extension direction of the rotating shaft 4 is perpendicular to the moving direction of the welding assembly 300.

[0071] The cleaning mechanism 3 is oscillated by the rotating shaft 4 to adjust the distance between the cleaning area and the welding area. This method is simple in structure and relatively reliable, and it is easy to adjust the oscillation amplitude of the cleaning mechanism 3.

[0072] In some embodiments, the welding assembly 300 further includes a fastener 6, the first end 61 of which is fixed to the cleaning mechanism 3, and the second end 62 of which is fixedly connected to the rotating shaft 4.

[0073] In this embodiment, the first end 61 of the fixing member 6 can be fixed to the cleaning mechanism 3 by means of bonding or interference fit. The second end 62 of the fixing member 6 can be connected to the rotating shaft 4 by means of integral molding or welding.

[0074] In this embodiment, the first end 61 and the second end 62 of the fastener 6 can be two ends of the fastener 6 that are far apart from each other, or they can be two adjacent ends.

[0075] Optionally, the second end 62 of the fastener 6 is circumferentially mounted on the rotating shaft 4.

[0076] The rotating shaft 4 and the cleaning mechanism 3 are connected by the fastener 6, which makes the connection relatively convenient.

[0077] In some embodiments, the fastener 6 is detachably connected to the cleaning mechanism 3, and / or, the first end 61 of the fastener 6 is sleeved on the cleaning mechanism 3.

[0078] In this embodiment, the fixing member 6 is detachably connected to the cleaning mechanism 3, and the first end 61 of the fixing member 6 can be connected to the cleaning mechanism 3 by means of bolt connection or snap-fit.

[0079] In this embodiment, the first end 61 of the fastener 6 is sleeved on the cleaning mechanism 3. For example, the fastener 6 includes a clamp that surrounds the cleaning mechanism 3, and the non-bolt connection area of ​​the clamp is connected to the rotating shaft 4. The clamp can be detachably connected to the cleaning mechanism 3 by opening and closing.

[0080] In another example, the first end 61 of the fixing member 6 is sleeved on the cleaning mechanism, and the inner side is provided with a retractable protruding structure. The cleaning mechanism 3 is provided with a groove, and the two opposite surfaces of the groove along the extension direction of the cleaning mechanism 3 are both inclined surfaces, which are used to guide the protruding structure to slide in or out. When the protruding structure slides into the groove, the fixing member 6 is fixed to the cleaning mechanism 3. The protruding structure includes a spring and a protrusion connected to one end of the spring. The detachable connection with the cleaning mechanism 3 is realized by sliding in and out of the protruding structure.

[0081] In this way, the fixing member 6 and the cleaning mechanism 3 are arranged in a detachable connection, which is convenient for maintenance and replacement of the cleaning mechanism 3. The first end of the fixing member 6 is sleeved on the cleaning mechanism 3 to realize the connection, and this kind of mode makes the connection of the cleaning mechanism 3 and the fixing member 6 more firm.

[0082] In some embodiments, the welding assembly 300 further comprises a driving member connected to the rotating shaft 4 and used to drive the rotating shaft 4 to rotate.

[0083] The driving member of the embodiment can be a motor.

[0084] The driving member is arranged to drive rotation, which not only saves manpower, but also controls more accurately and is more convenient to use.

[0085] In some embodiments, the cleaning mechanism 3 comprises a laser head connected to the mounting bracket 1 and configured to be rotatable relative to the mounting bracket 1 and stay at a preset position, and the laser head is used to emit laser 7.

[0086] In an example, the cleaning mechanism 3 further comprises a laser emitting assembly connected to the laser head and used to generate laser 7. The laser emitting assembly does not move with the welding assembly.

[0087] The cleaning mechanism 3 is arranged to comprise a laser head, and the cleaning effect is better by using laser 7.

[0088] In some embodiments, the mounting bracket 1 and the welding gun 2 are detachably connected.

[0089] The mounting bracket 1 and the welding gun 2 of the embodiment can be detachably connected by bolt connection, screw connection, pin connection or clamping fixation and the like.

[0090] In this way, the welding gun 2 and the mounting bracket 1 can be separated conveniently, and the maintenance of the welding gun 2 is facilitated.

[0091] In some embodiments, the mounting bracket 1 comprises a first bracket 11 and a second bracket 12, the first bracket 11 is detachably connected with the welding gun 2, the cleaning mechanism 3 is rotatably arranged on the second bracket 12, and the first bracket 11 is detachably connected with the second bracket 12.

[0092] The first support 11 of the embodiment can be detachably connected with the welding gun 2 in a bolt connection, screw connection, pin locking, or the like. The first support 11 and the second support 12 can be detachably connected in a bolt connection, screw connection, pin locking, or the like.

[0093] The mounting support 1 is divided into the first support 11 and the second support 12 which are detachably connected. When the first support 11 or the second support 12 is damaged during use, the entire mounting support 1 does not need to be replaced, and only the first support 11 or the second support 12 needs to be replaced, thereby reducing maintenance costs. In addition, different models of the first support 11 or the second support 12 can be replaced according to use requirements.

[0094] In some embodiments, the first support 11 includes a first plate body 111 and a second plate body 112 connected with each other. The first plate body 111 is sleeved on the welding gun 2 and detachably connected with the welding gun 2. The second plate body 112 is located on a side of the first plate body 111 close to the cleaning mechanism 3 and detachably connected with the second support 12.

[0095] The first plate body 111 of the embodiment can be detachably connected with the welding gun 2 in a bolt connection or fixed by using a clamp.

[0096] The second plate body 112 of the embodiment is located on a side of the first plate body 111 close to the cleaning mechanism 3. As shown in the figure, the second plate body 112 is located on the left side of the first plate body 111.

[0097] Further, the second plate body 112 is located on the lower side of the first plate body 111.

[0098] The second plate body 112 of the embodiment can be detachably connected with the second support 12 in a bolt connection or screw connection.

[0099] Sleeving the first plate body 111 on the welding gun 2 can increase the structural strength of the connection. Arranging the second plate body 112 on a side of the first plate body 111 close to the cleaning mechanism 3 can facilitate the connection with the second support 12.

[0100] In some embodiments, the first support 11 further includes a third plate body 113. The first plate body 111 and the second plate body 112 are arranged in parallel. The opposite ends of the third plate body 113 are respectively connected to the first plate body 111 and the second plate body 112 at an angle.

[0101] The opposite ends of the third plate body 113 of the embodiment can be arranged at an obtuse angle, an acute angle, or a right angle with the first plate body 111 and the second plate body 112.

[0102] Alternatively, the opposite ends of the third plate body 113 are respectively arranged perpendicularly to the first plate body 111 and the second plate body 112.

[0103] The third plate body 113 is arranged such that the first plate body 111 and the second plate body 112 are arranged in parallel, and the second plate body 112 and the second support 12 can be connected in the vertical direction, facilitating installation.

[0104] In some embodiments, the second support 12 comprises a fourth plate body 121 and a fifth plate body 122 connected in series, the fourth plate body 121 is detachably connected with the second plate body 112, and the fifth plate body 122 is located on a side of the fourth plate body 121 close to the cleaning mechanism 3, and the cleaning mechanism 3 is rotatably arranged on the fifth plate body 122.

[0105] The fourth plate body 121 and the fifth plate body 122 of the embodiment can be directly connected at an angle or indirectly connected through other components. The fourth plate body 121 and the second plate body 112 can be connected by bolts or screws.

[0106] Optionally, the fifth plate body 122 is parallel to the first plate body 111 and the second plate body 112, and the fifth plate body 122 extends in the horizontal direction.

[0107] Optionally, the mounting seat 5 is fixed on the fifth plate body 122.

[0108] The second support 12 is arranged to comprise the fourth plate body 121 and the fifth plate body 122, the fourth plate body 121 facilitates connection with the first support 11, and the fifth plate body 122 facilitates arrangement of the cleaning mechanism 3.

[0109] In some embodiments, the welding gun is an arc welding gun.

[0110] The welding gun is arranged as an arc welding gun, which is more susceptible to the influence of impurities or vapor formed by the metal anticorrosive layer during arc welding. Therefore, the arrangement of the cleaning mechanism 3 can effectively improve the welding quality and improve the yield of welding.

[0111] In some embodiments, the target object is a battery box, and the surface of the battery box for at least one component to be welded is provided with a zinc plating layer.

[0112] The battery box serves to accommodate battery monomers. Optionally, the box is a battery tray rolling box.

[0113] For components provided with a zinc plating layer, the zinc plating layer is more likely to form metal vapor during welding, thereby reducing the welding quality. Therefore, the cleaning mechanism 3 can clean the zinc plating layer to improve the welding quality.

[0114] The embodiment of the present application also provides a welding device 100 comprising the welding assembly 300 and the robot 200, the robot 200 is connected with the welding gun 2 and is used to drive the welding assembly 300 to move.

[0115] The robot 200 of the embodiment of the present application is a welding robot 200.

[0116] The robot 200 is connected to the top end of the welding gun 2. Further, the robot 200 is threadedly connected to the top end of the welding gun 2.

[0117] The robot 200 of the embodiment of the present application drives the mounting bracket 1, the welding gun 2 and the cleaning mechanism 3 to move synchronously.

[0118] As Figure 1 , the operation steps of the welding device 100 of the embodiment of the present application are as follows:

[0119] Starting the welding program;

[0120] The robot 200 carrying the welding assembly 300 moves above the weld seam of the box body which needs to be welded;

[0121] The cleaning mechanism 3 is opened, and the welding gun 2 is powered to perform arc welding. The robot 200 drives the cleaning mechanism 3 and the welding gun 2 to move left together to clean and weld the weld seam, wherein the cleaning mechanism 3 is on the left side of the welding gun 2.

[0122] The robot 200 is lifted;

[0123] The robot 200 drives the welding assembly 300 to move to the next weld seam for welding until all the weld seams are welded.

[0124] Please refer to Figure 1 and Figure 2The embodiment of the present application provides a welding assembly, which comprises a mounting bracket 1, a welding gun 2 and a cleaning mechanism 3. The welding gun 2 is mounted on the mounting bracket 1 and is used for arc welding on a target object. The cleaning mechanism 3 is connected to the mounting bracket 1 and is used for cleaning an area to be welded of the welding gun 2 in a welding state. The cleaning mechanism 3 is configured to be rotatable relative to the mounting bracket 1 and to stay at a preset position, so as to adjust the distance between the cleaning area of the cleaning mechanism 3 and the welding area of the welding gun 2. The welding assembly 300 comprises a rotating shaft 4 and a mounting seat 5. The rotating shaft 4 is pivotally connected to the mounting seat 5. The mounting seat 5 is fixedly connected to the mounting bracket 1. The cleaning mechanism 3 is fixedly connected to the rotating shaft 4. The rotating shaft 4 is used for swinging the cleaning mechanism 3. The welding assembly 300 further comprises a fixing piece 6. A first end 61 of the fixing piece 6 is fixed to the cleaning mechanism 3. A second end 62 of the fixing piece 6 is fixedly connected to the rotating shaft 4. The welding assembly 300 further comprises a driving piece. The driving piece is connected to the rotating shaft 4 and is used for driving the rotating shaft 4 to rotate. The mounting bracket 1 is detachably connected to the welding gun 2. The mounting bracket 1 comprises a first bracket 11 and a second bracket 12. The first bracket 11 is detachably connected to the welding gun 2. The cleaning mechanism 3 is rotatably arranged on the second bracket 12. The first bracket 11 is detachably connected to the second bracket 12. The cleaning mechanism 3 comprises a laser head. The laser head is connected to the mounting bracket 1 and is configured to be rotatable relative to the mounting bracket 1 and to stay at a preset position. The laser head is used for emitting laser 7.

[0125] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0126] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, but these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A welding assembly, characterized by, The welding assembly comprises: a mounting bracket; a welding gun mounted on the mounting bracket and used for welding a target object; a cleaning mechanism connected to the mounting bracket and used for cleaning a region to be welded by the welding gun when the welding is started and during the welding, the cleaning mechanism being configured to be rotatable relative to the mounting bracket and to stay at a preset position to adjust a distance between a cleaning region of the cleaning mechanism and a welding region of the welding gun.

2. The welding assembly of claim 1, wherein, The welding assembly comprises a pivot shaft and a mounting base, the pivot shaft being pivotally connected to the mounting base, the mounting base being fixedly connected to the mounting bracket, the cleaning mechanism being fixedly connected to the pivot shaft, and the pivot shaft being used for swinging the cleaning mechanism.

3. The welding assembly of claim 2, wherein, The welding assembly further comprises a fixing member, a first end of the fixing member being fixed to the cleaning mechanism, and a second end of the fixing member being fixedly connected to the pivot shaft.

4. The welding assembly of claim 3, wherein, The first end of the fixing member is detachably connected to the cleaning mechanism. The first end of the fixing member is sleeved on the cleaning mechanism.

5. The welding assembly of claim 2, wherein, The welding assembly further comprises a driving member connected to the pivot shaft and used for rotating the pivot shaft.

6. The welding assembly of claim 1, wherein, The cleaning mechanism comprises a laser head connected to the mounting bracket and configured to be rotatable relative to the mounting bracket and to stay at a preset position, the laser head being used for emitting laser.

7. The welding assembly of claim 1, wherein, The mounting bracket is detachably connected to the welding gun.

8. The welding assembly of claim 7, wherein, The mounting bracket comprises a first bracket and a second bracket, the first bracket being detachably connected to the welding gun, the cleaning mechanism being rotatably arranged on the second bracket, and the first bracket being detachably connected to the second bracket.

9. The welding assembly of claim 8, wherein, The first bracket comprises a first plate body and a second plate body connected to each other, the first plate body being sleeved on the welding gun and detachably connected to the welding gun, and the second plate body being located on a side of the first plate body close to the cleaning mechanism and detachably connected to the second bracket.

10. The welding assembly of claim 9, wherein, The first bracket further comprises a third plate body, the first plate body and the second plate body being arranged in parallel, and opposite ends of the third plate body being angularly connected to the first plate body and the second plate body, respectively.

11. The welding assembly of claim 9, wherein, The second bracket comprises a fourth plate body and a fifth plate body connected to each other, the fourth plate body being detachably connected to the second plate body, and the fifth plate body being located on a side of the fourth plate body close to the cleaning mechanism, the cleaning mechanism being rotatably arranged on the fifth plate body.

12. The welding assembly of claim 1, wherein, The welding gun is an arc welding gun.

13. The welding assembly of claim 1, wherein, The target object is a battery case, and the battery case is provided with a galvanized layer on a surface of at least one component to be welded.

14. A welding device characterized by The welding assembly as claimed in any one of claims 1-13; A robot connected to the welding gun and used for moving the welding assembly. ​

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