Welding mechanism

Abstract

The utility model provides a welding mechanism which comprises a support assembly, a moving assembly and a welding assembly, and the support assembly is connected with the moving assembly. The welding assembly comprises a first connecting plate, a connecting block, an elastic piece and a welding sleeve, the first connecting plate is connected with the output end of the moving assembly, one end of the elastic piece is connected with the first connecting plate, the other end of the elastic piece is connected with the connecting block, the first connecting plate and the connecting block are arranged at intervals, and the welding sleeve is arranged on the connecting block. According to the welding mechanism, the welding sleeve can obtain effective force buffering in the downward pressing process, scratches on the surface of the aluminum bar due to overlarge pressure are prevented, and therefore the quality of welding operation and the attractiveness of a finished product are improved.

Description

Technical Field

[0001] The utility model relates to the field of welding, in particular to a welding mechanism. Background Art

[0002] In existing technology, the connection between battery cell modules and busbars generally relies on welding. However, controlling the downward pressure of the welded parts during the welding process presents a major challenge. Specifically, excessive downward pressure during welding can easily scratch the surface of the aluminum busbar. This mechanical damage not only compromises the product's appearance but can also affect its overall performance and durability. Utility Model Content

[0003] The utility model mainly provides a welding mechanism, which can avoid the situation that the pressure of the welding parts is too high during the pressing process, resulting in scratches on the aluminum bar and affecting the appearance of the product.

[0004] In order to solve the above problems, a technical solution adopted by the present invention is: to provide a welding mechanism, which includes: a bracket assembly; a moving assembly connected to the bracket assembly; a welding assembly, including a first connecting plate, a connecting block, an elastic member and a welding sleeve, the first connecting plate is connected to the output end of the moving assembly, one end of the elastic member is connected to the first connecting plate, and the other end is connected to the connecting block, the first connecting plate and the connecting block are spaced apart, and the welding sleeve is arranged on the connecting block.

[0005] In a specific embodiment, the welding assembly further includes a first fastener and a second fastener, the connecting block is provided with a receiving groove, the elastic member is assembled in the receiving groove, the first fastener passes through the first connecting plate and is inserted into the connecting block, and the second fastener passes through the connecting block and is connected to the first fastener.

[0006] In a specific embodiment, the welding sleeve includes an outer welding sleeve and an inner welding sleeve, the outer welding sleeve is connected to the connecting block, the outer welding sleeve is provided with an outer channel and an air inlet connected to the outer channel, the inner welding sleeve is inserted into the outer channel and connected to the outer welding sleeve, the inner welding sleeve does not exceed the outer welding sleeve, the inner welding sleeve is provided with an inner channel, an air duct connected to the air inlet is provided between the inner wall of the outer channel and the inner welding sleeve, and the air inlet is used to be connected to the protective gas device.

[0007] In one embodiment, the airway is annular.

[0008] In a specific embodiment, a first step portion is provided on the peripheral wall of the outer channel, and a second step portion is provided on the outer peripheral wall of the inner layer welding sleeve, and the first step portion is overlapped on the second step portion.

[0009] In a specific embodiment, the number of the air inlets is N, 1≤N≤6, and the N air inlets are evenly spaced.

[0010] In a specific embodiment, the welding assembly further includes a smoking piece, which has a smoking port, the smoking port having a diameter of 16 mm to 26 mm, and is arranged on the connecting block. The smoking piece is respectively connected to the connecting block and the welding sleeve, and is used to connect to the exhaust device.

[0011] In a specific embodiment, the bracket assembly includes a large plate connecting block and a support plate, the large plate connecting block is provided with a first U-shaped groove, the first U-shaped groove extends along a first direction, the first U-shaped groove is used for screws to pass through and then connect to the laser welding equipment, the support plate is provided with a second U-shaped groove, the second U-shaped groove extends along a second direction, the second U-shaped groove is used for screws to pass through and then connect to the large plate connecting block, the first direction and the second direction are perpendicular to each other, and the motion assembly is connected to the support plate.

[0012] In a specific embodiment, the motion assembly includes a slider mechanism, a driving member and a second connecting plate; the slider mechanism and the driving member are arranged on the bracket assembly, the second connecting plate is connected to the slider mechanism, the output end of the driving member is connected to the second connecting plate, and a third U-shaped groove is provided on the first connecting plate, and the third U-shaped groove extends along a third direction. The third U-shaped groove is used for screws to pass through and then connect to the second connecting plate, and the third direction is perpendicular to the first direction and the second direction respectively.

[0013] In a specific embodiment, the welding mechanism further includes a control valve and a locking switch; the control valve is arranged on the bracket assembly to control the movement of the driving member, and the locking switch is arranged on the driving member, and the locking switch is used to prompt the welding member to start working.

[0014] The beneficial effects of the utility model are:

[0015] The welding mechanism provided by the utility model includes a bracket assembly, a moving assembly and a welding assembly, and the bracket assembly is connected to the moving assembly. The welding assembly includes a first connecting plate, a connecting block, an elastic member and a welding sleeve. One end of the first connecting plate is connected to the output end of the moving assembly, and the other end is spaced apart from the connecting block to form a buffer space; the elastic member is arranged along the first direction, and the two ends of the elastic member are respectively connected to the first connecting plate and the connecting block, and the welding sleeve is arranged on the connecting block. When welding begins, the welding assembly is pressed down along the first direction, which can play a buffering role by compressing the elastic member, preventing the welding mechanism from causing scratches on the aluminum bar due to excessive pressure, affecting the appearance of the product, and ensuring the quality and appearance of the welding. When welding is completed, the elastic member can also reset the welding assembly to ensure that the welding assembly returns to its original state. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the utility model, the following is a brief introduction to the drawings required for the description of the embodiments. 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 creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a structural diagram of the welding assembly of the utility model;

[0019] Figure 3 yes Figure 2 Schematic cross-section of the welded assembly;

[0020] Figure 4 This is a schematic diagram of the three-dimensional structure of the welding sleeve of the utility model;

[0021] Figure 5 yes Figure 4 Schematic cross-section of the welding sleeve.

[0022] 100. Bracket assembly; 110. Large plate connecting block; 111. First U-shaped groove; 120. Support plate; 121. Second U-shaped groove; 200. Moving assembly; 210. Slider mechanism; 220. Driving member; 230. Second connecting plate; 300. Welding assembly; 310. First connecting plate; 311. Third U-shaped groove; 320. Connecting block; 321. Accommodating groove; 330. Elastic member; 340. Welding sleeve; 341. Outer welding sleeve; 3411. Air inlet; 3412. Outer channel; 3413. First step portion; 342. Inner welding sleeve; 3421. Inner channel; 3422. Second step portion; 343. Airway; 350. First fastener; 360. Second fastener; 370. Smoking member; 410. Control valve; 420. Lock switch; X, first direction; Y, second direction; Z, third direction. DETAILED DESCRIPTION

[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be noted that the following embodiments are intended only to illustrate the present invention and do not limit the scope of the present invention. Similarly, the following embodiments are only some of the embodiments of the present invention and not all of them. All other embodiments obtained by persons of ordinary skill in the art without creative effort are also within the scope of protection of the present invention.

[0024] See also Figure 1 , Figure 1 This is a schematic diagram of the overall structure of the present invention. The welding mechanism of the present invention includes a bracket assembly 100, a motion assembly 200, and a welding assembly 300. The welding assembly 300 includes a first connecting plate 310, a connecting block 320, an elastic member 330, and a welding sleeve 340. The first connecting plate 310 is connected to the output end of the motion assembly 200, the connecting block 320 is spaced apart from the first connecting plate 310, and the elastic member 330 is arranged along a first direction X. One end of the elastic member 330 is connected to the first connecting plate 310, and the other end is connected to the connecting block 320. The welding sleeve 340 is arranged on a side of the connecting block 320 in the first direction X that is away from the first connecting plate 310.

[0025] In practice, the motion assembly 200 drives the welding assembly 300 in a first direction X. The first connecting plate 310 and the connecting block 320 are spaced apart to form a buffer space. The elastic member 330 is positioned along the first direction X, with its ends connected to the first connecting plate 310 and the connecting block 320, respectively. When welding begins, the welding assembly 300 is pressed downward in the first direction X. This compresses the elastic member 330, acting as a buffer and preventing scratches on the aluminum busbar caused by excessive pressure from the welding mechanism, which could affect the product's appearance. When welding is complete, the elastic member 330 resets the welding assembly 300, ensuring that it returns to its original state. Optionally, the elastic member 330 of the present invention can be a spring or a silicone pad. The welding sleeve 340 is positioned on the connecting block 320 to compress the battery cell terminals and busbars. Furthermore, the welding sleeve 340 isolates the welded area from areas outside the sleeve, preventing metal slag from splashing into the module during welding and improving module quality. Optionally, the welding sleeve 340 may be a copper sleeve, an iron sleeve, or other metal sleeves.

[0026] Preferably, the connecting block 320 is an insulating connecting block 320, and the welding sleeve 340 and the first connecting plate 310 are connected via the insulating connecting block 320, which effectively prevents the module short circuit problem that may occur during the welding process and enhances the overall safety protection performance.

[0027] Please also refer to Figure 2 and Figure 3 , Figure 2 This is a schematic structural diagram of the welding assembly 300 of the present invention. Figure 3 yes Figure 2 Schematic cross-sectional view of the welding assembly 300. The welding assembly 300 may further include a first fastener 350 and a second fastener 360. A receiving groove 321 is provided on the connecting block 320, and the receiving groove 321 may be square or circular. The first fastener 350 passes through the first connecting plate 310 and is inserted into the receiving groove 321. The first fastener 350 supports the elastic member 330 along the first direction X, and the elastic member 330 is not easily deformed in the second direction Y or the third direction Z during the movement of the welding assembly 300. The elastic member 330 is assembled in the receiving groove 321. The receiving groove 321 limits the elastic member 330 and also facilitates the assembly of the elastic member 330. The second fastener 360 passes through the connecting block 320 and is connected to the first fastener 350. The second fastener 360 supports the connecting block 320 along the first direction X. The first fastener 350 and the second fastener 360 are both detachably connected to the connecting block 320, enabling quick replacement of the elastic member 330 and the connecting block 320, thereby improving welding efficiency. Optionally, the first fastener 350 and the second fastener 360 may be bolts or rivets.

[0028] Please continue reading Figure 4 and Figure 5 , Figure 4 yes Figure 2 A schematic diagram of the three-dimensional structure of the middle welding sleeve 340, Figure 5 yes Figure 4 A schematic cross-sectional view of the welding sleeve 340. The welding sleeve 340 includes an outer welding sleeve 341 and an inner welding sleeve 342. The outer welding sleeve 341 is connected to the connecting block 320. The outer welding sleeve 341 defines an outer channel 3412 and an air inlet 3411 connected to the outer channel 3412. The inner welding sleeve 342 is inserted into the outer channel 3412 and connected to the outer welding sleeve 341. The inner welding sleeve 342 does not extend beyond the outer welding sleeve 341. The inner welding sleeve 342 defines an inner channel 3421. An air duct 343 connected to the air inlet 3411 is provided between the inner wall of the outer channel 3412 and the inner welding sleeve 342. The air inlet 3411 is used to connect to the shielding gas device.

[0029] In practice, the dual configuration of the inner welding sleeve 342 and the outer welding sleeve 341 enhances the structural strength of the welding sleeve 340. An air passage 343 is formed between the inner wall of the outer channel 3412 and the inner welding sleeve 342. This air passage 343 communicates with the air inlet 3411, allowing shielding gas to enter through the air inlet 3411 and be blown to the weld surface via the air passage 343. Furthermore, the inner welding sleeve 342 is lower than the outer welding sleeve 341, and the air passage 343 is annular in shape, ensuring that the shielding gas introduced from the air inlet 3411 is evenly distributed throughout the air passage 343 and blown toward the weld surface in a circular pattern. This uniform blowing ensures that the shielding gas delivered to the weld surface fully covers the weld area of ​​the product to be welded, forming a close contact with the weld surface. This method not only effectively prevents welding defects caused by external factors such as oxidation and contamination during the welding process, but also significantly improves the quality and strength of the welded joint.

[0030] Furthermore, there are multiple air inlets 3411, each of which is spaced apart and arranged around the outer welding sleeve 341. Optionally, the number of air inlets 3411 is N, where 1≤N≤6. If two air inlets 3411 are provided, they are symmetrically arranged on the outer welding sleeve 341, with the rotation angle between each air inlet 3411 being 180°. If six air inlets 3411 are provided, they are equidistantly arranged around the outer welding sleeve 341, with the rotation angle between each air inlet 3411 being 60°. Multiple air inlets 3411 ensure that the shielding gas is evenly blown out during welding, preventing the formation of weld beads and ensuring weld quality and appearance.

[0031] In one embodiment, a first step portion 3413 is provided on the peripheral wall of the outer channel 3412, and a second step portion 3422 is provided on the outer peripheral wall of the inner welding sleeve 342. The first step portion 3413 is overlapped on the second step portion 3422, which improves the overall stability of the welding sleeve 340 and effectively prevents unnecessary sliding or displacement between the outer welding sleeve 341 and the inner welding sleeve 342 in a specific direction (i.e., the first direction X), thereby ensuring the accuracy of the welding process and the quality of the welding product.

[0032] Please continue reading Figure 1 and Figure 2 The welding assembly 300 also includes a smoke extraction member 370, which is disposed on the connecting block 320 and has a smoke extraction port. The smoke extraction member 370 communicates with the connecting block 320 and the welding sleeve 340 through the smoke extraction port. The smoke extraction member 370 is connected to an exhaust device, and smoke generated during welding can be sucked out of the exhaust device through the smoke extraction port to the smoke extraction member 370. Specifically, the smoke extraction port has a diameter of 16mm to 26mm and can efficiently and fully absorb the smoke generated during welding. The smoke extraction port can smoothly enter the external exhaust system, further improving the air purification effect at the welding site.

[0033] Please continue reading Figure 1 and Figure 2 In one embodiment, the bracket assembly 100 includes a large plate connecting block 110 and a support plate 120. The large plate connecting block 110 is provided with a first U-shaped groove 111. The first U-shaped groove 111 extends along a first direction X, providing a convenient path for screw insertion, allowing the large plate connecting block 110 to be securely connected to the laser welding equipment. The support plate 120 is provided with a second U-shaped groove 121. The second U-shaped groove 121 extends along a second direction Y perpendicular to the first direction X. The second U-shaped groove 121 also achieves a fixed connection between the support plate 120 and the large plate connecting block 110 by screw insertion.

[0034] In practical applications, not only can the position of the large plate connecting block 110 be finely adjusted in the first direction X to meet specific assembly requirements by adjusting the position of the screws passing through the first U-shaped slot 111, but the second U-shaped slot 121 can also be used to fine-tune the position of the support plate 120 in the second direction Y, ensuring the precise installation and stability of the entire bracket assembly 100. The bidirectionally adjustable design of the first U-shaped slot 111 and the second U-shaped slot 121 greatly improves the applicability and assembly efficiency of the bracket assembly 100.

[0035] In one embodiment, the motion assembly 200 includes a slider mechanism 210, a driver 220, and a second connecting plate 230. The slider mechanism 210 is disposed on the bracket assembly 100 along a first direction X and connected to the second connecting plate 230. The driver 220 is disposed on the bracket assembly 100, and the output end of the driver 220 is connected to the second connecting plate 230. The first connecting plate 310 is provided with a third U-shaped slot 311 extending along a third direction Z. The third U-shaped slot 311 is used to receive screws for connection to the second connecting plate 230. Specifically, the third U-shaped slot 311 allows the first and second connecting plates 310, 230 to be fine-tuned in the third direction Z to meet assembly requirements. The third direction Z is perpendicular to the first and second directions X and Y, respectively. This layout not only enhances the stability of the overall structure but also prevents movement and adjustment in various directions from interfering with each other, thereby improving the flexibility and precision of the entire system.

[0036] In actual application, the driver 220 acts as a power source and is activated after receiving a control signal, driving the slider mechanism 210 and the second connecting plate 230 connected thereto to move along the first direction X. Optionally, the driver 220 in this embodiment can be a cylinder, an oil cylinder, or a motor. The welding assembly 300 is connected to the second connecting plate 230. Driven by the driver 220, the welding assembly 300 can not only move along the first direction X with the second connecting plate 230, but also achieve multi-angle and multi-position precision welding of the welding workpiece by adjusting the position of the tooling during the movement. This welding method not only improves the efficiency and accuracy of the welding operation, but also broadens the application range of the welding process.

[0037] In one embodiment, the welding mechanism further includes a control valve 410 and a locking switch 420; the control valve 410 is arranged on the bracket assembly 100 for controlling the movement of the driving member 220, and the locking switch 420 is arranged on the driving member 220, and the locking switch 420 is used to prompt the welding member to start working.

[0038] In practical applications, control valve 410 can be electrically or manually controlled. Control valve 410 controls driver 220 to drive motion assembly 200 and welding assembly 300 in first direction X. When welding sleeve 340 reaches the desired position, locking switch 420 quickly responds and issues a clear signal, triggering the next step in the welding mechanism. Thus, control valve 410 provides signal control of motion assembly 200 and welding assembly 300, locking switch 420 controls the welding operation, and driver 220 provides a stable and reliable power source. This design not only improves the automation level of welding operations but also ensures the accuracy and safety of the welding process.

[0039] The terms "first", "second" and "third" in the present invention are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, a feature defined as "first", "second" and "third" may explicitly or implicitly include at least one of such features. In the description of the present invention, "multiple" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined. All directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative positional relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. A process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally also include steps or units that are not listed, or may optionally include other steps or units inherent to these processes, methods, products or devices.

[0040] References to "embodiments" herein mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present invention. The appearance of this phrase in various locations in the specification does not necessarily refer to the same embodiment, nor does it refer to independent or alternative embodiments that are mutually exclusive with other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

Claims

1. A welding mechanism, characterized in that: include: bracket assembly; A motion assembly connected to the support assembly; The welding assembly includes a first connecting plate, a connecting block, an elastic member and a welding sleeve. The first connecting plate is connected to the output end of the motion assembly, one end of the elastic member is connected to the first connecting plate, and the other end is connected to the connecting block. The first connecting plate and the connecting block are spaced apart, and the welding sleeve is arranged on the connecting block.

2. The welding mechanism according to claim 1, characterized in that: The welding assembly also includes a first fastener and a second fastener. The connecting block is provided with a receiving groove, the elastic member is assembled in the receiving groove, the first fastener passes through the first connecting plate and is inserted into the connecting block, and the second fastener passes through the connecting block and is connected to the first fastener.

3. The welding mechanism according to claim 1, characterized in that: The welding sleeve includes an outer welding sleeve and an inner welding sleeve. The outer welding sleeve is connected to the connecting block. The outer welding sleeve is provided with an outer channel and an air inlet connected to the outer channel. The inner welding sleeve is inserted into the outer channel and connected to the outer welding sleeve. The inner welding sleeve does not exceed the outer welding sleeve. The inner welding sleeve is provided with an inner channel. An air duct connected to the air inlet is provided between the inner wall of the outer channel and the inner welding sleeve. The air inlet is used to be connected to a protective gas device.

4. The welding mechanism according to claim 3, characterized in that: The airway is in the shape of a circular ring.

5. The welding mechanism according to claim 3, characterized in that: A first step portion is provided on the peripheral wall of the outer channel, and a second step portion is provided on the outer peripheral wall of the inner layer welding sleeve, wherein the first step portion is overlapped on the second step portion.

6. The welding mechanism according to claim 3, characterized in that: The number of the air inlets is N, 1≤N≤6, and the N air inlets are evenly spaced.

7. The welding mechanism according to any one of claims 1 to 6, characterized in that: The welding assembly also includes a smoking piece, which has a smoking port with a diameter of 16mm~26mm. The smoking piece is arranged on the connecting block, and is respectively connected to the connecting block and the welding sleeve. The smoking piece is used to connect to the exhaust device.

8. The welding mechanism according to any one of claims 1 to 6, characterized in that: The bracket assembly includes a large plate connecting block and a support plate. A first U-shaped groove is provided on the large plate connecting block, and the first U-shaped groove extends along a first direction. The first U-shaped groove is used for screws to pass through and then connect to the laser welding equipment. A second U-shaped groove is provided on the support plate, and the second U-shaped groove extends along a second direction. The second U-shaped groove is used for screws to pass through and then connect to the large plate connecting block. The first direction and the second direction are perpendicular to each other, and the motion assembly is connected to the support plate.

9. The welding mechanism according to claim 8, characterized in that: The motion assembly includes a slider mechanism, a driving member and a second connecting plate; the slider mechanism and the driving member are arranged on the bracket assembly, the second connecting plate is connected to the slider mechanism, the output end of the driving member is connected to the second connecting plate, and a third U-shaped groove is provided on the first connecting plate, and the third U-shaped groove extends along a third direction. The third U-shaped groove is used for screws to pass through and then connect to the second connecting plate, and the third direction is perpendicular to the first direction and the second direction respectively.

10. The welding mechanism according to claim 9, characterized in that: The welding mechanism also includes a control valve and a locking switch; the control valve is arranged on the bracket assembly to control the movement of the driving member, and the locking switch is arranged on the driving member to prompt the welding member to start working.

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