Welding tool

Abstract

The utility model discloses a welding tool. The welding tool comprises a support, a Y-axis adjusting module, a Z-axis adjusting module and a welding module. The Y-axis adjusting module is mounted on the bracket; the Z-axis adjusting module is installed on the Y-axis adjusting module, and the Z-axis adjusting module is driven by the Y-axis adjusting module to slide in the Y-axis direction; the welding module is installed on the Z-axis adjusting module, and the welding module is driven by the Z-axis adjusting module to slide in the Z-axis direction. The welding module can be adjusted in the Y-axis direction and the Z-axis direction through the Y-axis adjusting module and the Z-axis adjusting module, the position deviation generated between the battery cell pole and the pressing nozzle of the welding module in the assembly line conveying process is reduced, the welding precision is high, the problem of welding deviation is solved, and the production efficiency is improved. And the welding penetration depth and welding width parameters can be stabilized.

Description

Technical Field

[0001] The utility model belongs to the technical field of laser welding, and in particular relates to a welding tool. Background Art

[0002] During the production process of battery modules, the battery cells need to be stacked, extruded and welded CCS. Welding CCS is to weld the aluminum bar and the battery pole on the battery cell into one by laser welding, thereby playing the role of overcurrent.

[0003] During the welding process, the pressure nozzle of the welding tool needs to apply a certain amount of pressure to the aluminum bar and the battery cell pole to press the aluminum bar and the battery cell pole surface tightly before laser welding. At the same time, in the production process, the unfinished battery module is mainly transferred to the bottom of the welding tool for welding by assembly line transmission. This transmission method will cause the battery cell pole and the pressure nozzle of the welding tool to be offset, which will eventually lead to the inability to accurately weld the aluminum bar and the battery cell pole, resulting in welding deviation, welding depth and welding width are unqualified.

[0004] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0005] The utility model aims to provide a welding tool, which can adjust the welding module and reduce the position deviation between the battery cell pole and the pressure nozzle of the welding module during the assembly line transmission process.

[0006] In order to achieve the above purpose, the technical solution provided by a specific embodiment of the utility model is as follows:

[0007] A welding tool, comprising:

[0008] Bracket;

[0009] A Y-axis adjustment module is installed on the bracket;

[0010] A Z-axis adjustment module is installed on the Y-axis adjustment module, and the Z-axis adjustment module is driven by the Y-axis adjustment module to slide along the Y-axis direction;

[0011] The welding module is installed on the Z-axis adjustment module, and the welding module is driven by the Z-axis adjustment module to slide along the Z-axis direction.

[0012] In one or more embodiments of the present invention, the Y-axis adjustment module includes a first guide rail and a second guide rail installed on the bracket and arranged relatively along the Z-axis direction, a first slider installed on the first guide rail for sliding along the Y-axis direction, a second slider installed on the second guide rail for sliding along the Y-axis direction, and a first linear drive mechanism installed in linkage with the first slider or the second slider.

[0013] In one or more embodiments of the present invention, the Z-axis adjustment module includes an adapter plate installed on the Y-axis adjustment module, a third guide rail and a fourth guide rail arranged on the surface of the adapter plate away from the Y-axis adjustment module and relatively arranged along the Y-axis direction, a third slider installed on the third guide rail for sliding along the Z-axis direction, a fourth slider installed on the fourth guide rail for sliding along the Z-axis direction, and a second linear drive mechanism installed in linkage with the third slider or the fourth slider.

[0014] In one or more embodiments of the present invention, the welding module comprises:

[0015] A mounting plate, mounted on the Z-axis adjustment module, wherein the mounting plate is provided with a through hole;

[0016] A pressure nozzle, movably mounted below the mounting plate and aligned with the through hole;

[0017] The elastic member acts between the mounting plate and the pressing nozzle, so that the pressing nozzle has a tendency to move away from the mounting plate along the Z-axis direction.

[0018] In one or more embodiments of the present invention, the welding module also includes an X-axis adjustment module installed under the mounting plate and a sliding plate installed on the X-axis adjustment module, the sliding plate is driven by the X-axis adjustment module to slide along the X-axis direction, an avoidance hole is opened on the sliding plate, and the pressure nozzle is fixedly installed on the sliding plate and arranged in alignment with the avoidance hole.

[0019] In one or more embodiments of the present invention, the X-axis adjustment module includes a connecting plate installed below the mounting plate, a fifth guide rail installed on the connecting plate, a fifth slider installed on the fifth guide rail for sliding along the X-axis direction, and a third linear drive mechanism installed in linkage with the fifth slider.

[0020] In one or more embodiments of the present invention, the pressure nozzle includes a pressure nozzle body and a mounting portion provided on the pressure nozzle body, the welding tool also includes a fixing part, the fixing part passes through the sliding plate and is fixedly installed with the mounting portion, the elastic part is sleeved on the fixing part, the first end of the elastic part abuts against the sliding plate, and the second end of the elastic part abuts against the mounting portion.

[0021] In one or more embodiments of the present invention, the through hole is an oblong hole, and the length direction of the through hole is arranged along the X-axis direction.

[0022] In one or more embodiments of the present invention, the welding module further includes an anti-reflection cover disposed on the mounting plate, and the anti-reflection cover is disposed around the outside of the through hole.

[0023] In one or more embodiments of the present invention, the welding tooling includes one or more Y-axis adjustment modules, each Y-axis adjustment module is mounted with a Z-axis adjustment module, and each Z-axis adjustment module is mounted with a welding module.

[0024] In one or more embodiments of the present invention, the welding tool further includes a visual recognition device disposed above the welding module.

[0025] Compared with the prior art, the utility model has the following beneficial effects:

[0026] The utility model provides a welding tool, which can adjust the position of the welding module in the Y-axis direction and the Z-axis direction through the Y-axis adjustment module and the Z-axis adjustment module, thereby reducing the position deviation between the battery cell pole and the pressure nozzle of the welding module during the assembly line transmission process, has high welding accuracy, solves the problem of welding deviation, and can stabilize the welding depth and welding width parameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 This is a schematic diagram of the three-dimensional structure of a welding tool in one embodiment of the utility model;

[0029] Figure 2 This is a schematic diagram of the exploded structure of a welding tool in one embodiment of the utility model;

[0030] Figure 3 This is a schematic diagram of the top view of the welding tool in one embodiment of the utility model;

[0031] Figure 4 It is a side view structural schematic diagram of a welding tool in one embodiment of the utility model;

[0032] Figure 5 for Figure 4 Schematic diagram of the partial cross-section structure at BB in the middle. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0034] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0035] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0036] It should be noted that the “X-axis direction” in this application text is the Figure 2 The X-axis direction is marked in the figure, and the Y-axis direction is marked in the figure. Figure 2 The Y-axis is marked in the direction, and the Z-axis is marked in the direction. Figure 2 The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0037] The technical solution of the present utility model will be described below in conjunction with the accompanying drawings.

[0038] Reference Figure 1 As shown, a welding tool in an embodiment of the utility model includes: a bracket 1, a Y-axis adjustment module 2, a Z-axis adjustment module 3, and a welding module 4.

[0039] Among them, the Y-axis adjustment module 2 is installed on the bracket 1; the Z-axis adjustment module 3 is installed on the Y-axis adjustment module 2, and the Z-axis adjustment module 3 is driven by the Y-axis adjustment module 2 to slide along the Y-axis direction; the welding module 4 is installed on the Z-axis adjustment module 3, and the welding module 4 is driven by the Z-axis adjustment module 3 to slide along the Z-axis direction.

[0040] According to this design, the welding module 4 in this embodiment can be adjusted in the Y-axis direction and the Z-axis direction through the Y-axis adjustment module 2 and the Z-axis adjustment module 3, thereby reducing the position deviation between the battery cell pole and the pressure nozzle of the welding module during the assembly line transmission process, with high welding accuracy, solving the problem of welding deviation, and being able to stabilize the welding depth and welding width parameters.

[0041] Among them, the welding tool in this embodiment includes one or more Y-axis adjustment modules 2, each Y-axis adjustment module 2 is installed with a Z-axis adjustment module 3, and each Z-axis adjustment module 3 is installed with a welding module 4. Exemplarily, in order to improve the welding efficiency and prevent any Y-axis adjustment module 2 or Z-axis adjustment module 3 in the welding tool from being damaged and unable to work, the welding tool in this embodiment includes two Y-axis adjustment modules 2, each Y-axis adjustment module 2 is installed with a Z-axis adjustment module 3, and each Z-axis adjustment module 3 is installed with a welding module 4. Therefore, when one of the Y-axis adjustment modules 2 or the Z-axis adjustment module 3 is damaged, welding can still be completed. Of course, the present application is not limited to this, and the welding tool can also be provided with one Y-axis adjustment module 2, or three Y-axis adjustment modules 2, or multiple Y-axis adjustment modules 2.

[0042] Specifically, refer to Figure 2 As shown, the Y-axis adjustment module 2 in this embodiment includes a first guide rail 21 and a second guide rail 22 installed on the bracket 1 and arranged opposite to each other along the Z-axis direction, a first slider 23 slidably installed on the first guide rail 21 along the Y-axis direction, a second slider 24 slidably installed on the second guide rail 22 along the Y-axis direction, and a first linear drive mechanism (not shown) installed in linkage with the first slider 23 or the second slider 24.

[0043] Among them, the first linear drive mechanism can be a linear drive mechanism with linear drive function such as Y-axis servo, stepping, cylinder, magnetic drive, or hydraulic drive, which can be connected and accepted by technical personnel in this field.

[0044] Compared with the solution of only providing a first guide rail 21 or a second guide rail 22 and a first slider 23 or a second slider 24 slidably installed therein, the upper and lower parts of the Z-axis adjustment module 3 in the present application can be installed on the first slider 23 and the second slider 24 respectively, so that the Z-axis adjustment module 3 can be adjusted more stably along the Y-axis direction to prevent displacement in the Y-axis direction.

[0045] Reference Figure 2 As shown, the Z-axis adjustment module 3 in this embodiment includes an adapter plate 31 installed on the Y-axis adjustment module 2, a third guide rail 32 and a fourth guide rail 33 which are arranged on the surface of the adapter plate 31 away from the Y-axis adjustment module 2 and are relatively arranged along the Y-axis direction, a third slider 34 slidably installed on the third guide rail 32 along the Z-axis direction, a fourth slider 35 slidably installed on the fourth guide rail 33 along the Z-axis direction, and a second linear drive mechanism 36 installed in linkage with the third slider 34 or the fourth slider 35.

[0046] The upper and lower parts of the adapter plate 31 are fixedly mounted on the first slider 23 and the second slider 24, respectively. When the first slider 23 and the second slider 24 slide in the first guide rail 21 and the second guide rail 22, respectively, the adapter plate 31 can slide along the Y-axis direction to adjust the position difference of the welding fixture along the Y-axis direction. The first linear drive mechanism can be a linear drive mechanism with a linear drive function such as a Z-axis servo, or a stepper, or a cylinder, or a magnetic drive, or a hydraulic drive, which can be connected and accepted by those skilled in the art.

[0047] Compared with the solution of only providing a third guide rail 32 or a fourth guide rail 33 and a third slider 34 or a fourth slider 35 slidably installed therein, the left and right parts of the welding module 4 along the Y-axis direction in the present application can be installed on the third slider 34 and the fourth slider 35 respectively, so that the welding module 4 can be more stable during the adjustment along the Z-axis direction to prevent displacement in the Z-axis direction.

[0048] Reference Figure 2 , Figure 3 As shown, the welding module 4 in this embodiment includes: a mounting plate 41, a pressure nozzle 42, and an elastic member 43. Among them, the mounting plate 41 is mounted on the Z-axis adjustment module 3, and a through hole 411 is opened on the mounting plate 41; the pressure nozzle 42 is movably mounted below the mounting plate 41 along the Z-axis direction and is arranged in alignment with the through hole 411; the elastic member 43 acts between the mounting plate 41 and the pressure nozzle 42, so that the pressure nozzle 42 has a tendency to move away from the mounting plate 41 along the Z-axis direction. Exemplarily, the elastic member 43 in this embodiment is a spring. Of course, the elastic member 43 in this application can be any structure that can provide elastic force, such as a spring, a shrapnel, an airbag, etc.

[0049] Specifically, the mounting plate 41 is mounted on the third slider 34 and the fourth slider 35 of the Z-axis adjustment module 3. When the third slider 34 and the fourth slider 35 slide in the third guide rail 32 and the fourth guide rail 33 respectively, the mounting plate 41 can slide along the Z-axis direction to adjust the position difference of the welding tooling along the Z-axis direction. In this embodiment, the second linear drive mechanism 36 is mounted on the mounting plate 41.

[0050] According to this design, during the welding process of the aluminum bar, the aluminum bar and the battery cell pole can be pressed tightly together through the pressing nozzle 42 to facilitate laser welding.

[0051] Further, see Figure 2 , Figure 4 ,and Figure 5As shown, the welding module 4 in this embodiment also includes an X-axis adjustment module 44 installed under the mounting plate 41 and a sliding plate 45 installed on the X-axis adjustment module 44. The sliding plate 45 is driven by the X-axis adjustment module 44 to slide along the X-axis direction. An avoidance hole 450 is opened on the sliding plate 45. The pressure nozzle 42 is fixedly installed on the sliding plate 45 and is arranged in alignment with the avoidance hole 450.

[0052] Since the welded part (battery module) is not necessarily absolutely flat and has height differences on its surface, the pressure nozzle 42 in this embodiment can be adjusted in the X-axis direction through the X-axis adjustment module 44, so as to better press the battery cell poles and aluminum sheets tightly on the surface of the welded part, so as to achieve precise welding, reduce welding deviation, and stabilize the welding depth and welding width parameters.

[0053] Specifically, refer to Figure 2 As shown, the X-axis adjustment module 44 in this embodiment includes a connecting plate 441 installed below the mounting plate 41, a fifth guide rail 442 installed on the connecting plate 441, a fifth slider 443 slidably installed on the fifth guide rail 442 along the X-axis direction, and a third linear drive mechanism 444 installed in linkage with the fifth slider 443. Among them, the third linear drive mechanism 444 is installed on the mounting plate 41. The third linear drive mechanism 444 can be a linear drive mechanism with a linear drive function such as an X-axis direction servo, or a stepper, or a cylinder, or a magnetic drive, or a hydraulic drive, which can be connected and accepted by those skilled in the art.

[0054] Reference Figure 5 As shown, in order to install the pressure nozzle 42 on the sliding plate 45, the pressure nozzle 42 in this embodiment includes a pressure nozzle body 421 and a mounting portion 422 provided on the pressure nozzle body 421, and the welding tool also includes a fixing member 46, the fixing member 46 passes through the sliding plate 45 and is fixedly installed with the mounting portion 422, the elastic member 43 is sleeved on the fixing member 46, the first end of the elastic member 43 abuts against the sliding plate 45, and the second end of the elastic member 43 abuts against the mounting portion 422.

[0055] The sliding plate 45 is provided with a first mounting hole 451, and the first mounting hole 451 includes a first hole section 4511, a second hole section 4512, and a third hole section 4513 arranged in sequence from top to bottom, and the aperture of the second hole section 4512 is smaller than the apertures of the first hole section 4511 and the third hole section 4513. A first abutting surface 4514 is formed between the first hole section 4511 and the second hole section 4512, and a second abutting surface 4515 is formed between the second hole section 4512 and the third hole section 4513. The mounting portion 422 is provided with a second mounting hole 4211 arranged in alignment with the first mounting hole 451. The fixing member 46 includes a head portion 461 and a rod portion 462. The rod portion 462 passes through the first mounting hole 451 and partially extends into the second mounting hole 4211. When the welding tool is not working, the head 461 abuts against the first abutting surface 4514 , the elastic member 43 is sleeved on the rod 462 , the first end of the elastic member 43 abuts against the second abutting surface 4515 , and the second end of the elastic member 43 abuts against the second mounting hole 4211 .

[0056] According to this design, when the pressing nozzle 42 presses the aluminum bar sheet and the battery cell pole, the distance between the mounting portion 422 of the pressing nozzle 42 and the sliding plate 45 is reduced, the elastic member 43 is compressed, and the elastic member 43 applies a force to the pressing nozzle 42 in a direction away from the sliding plate 45, so that the pressing nozzle 42 presses the aluminum bar sheet and the battery cell pole, and the head 461 of the fixing member 46 is separated from the first abutting surface 4514. When the pressing nozzle 42 is separated from the aluminum bar sheet and the battery cell pole, the elastic member 43 tends to move the pressing nozzle 42 away from the sliding plate 45 until the head 461 of the fixing member 46 abuts against the first abutting surface 4514.

[0057] Preferably, refer to Figure 3 As shown, the through hole 411 in this embodiment is an oblong hole, and the length direction of the through hole 411 is arranged along the X-axis direction. According to this design, when the pressure nozzle 42 is adjusted along the X-axis direction along the sliding plate 45, the projection area of ​​the avoidance hole 450 can always be within the projection area of ​​the through hole 411 on the plane perpendicular to the Z-axis direction.

[0058] Reference Figure 2 , Figure 3 As shown, in order to prevent the laser generated during the welding process from affecting human eyes, the welding module 4 in this embodiment further includes an anti-reflective cover 47 disposed on the mounting plate 41 , and the anti-reflective cover 47 is disposed around the outside of the through hole 411 .

[0059] In order to identify the deviation and adjust the position difference between the pressure nozzle 42 and the battery cell pole during welding, the welding tool in this embodiment also includes a visual recognition device (not shown) disposed above the welding module 4. Specifically, the visual recognition device is located directly above the pressure nozzle 42.

[0060] It can be seen from the above technical solutions that the utility model has the following beneficial effects:

[0061] The utility model provides a welding tool, which can adjust the position of the welding module in the Y-axis direction and the Z-axis direction through the Y-axis adjustment module and the Z-axis adjustment module, thereby reducing the position deviation between the battery cell pole and the pressure nozzle of the welding module during the assembly line transmission process, has high welding accuracy, solves the problem of welding deviation, and can stabilize the welding depth and welding width parameters.

[0062] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-limiting from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0063] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A welding tool, characterized in that: The welding tool comprises: Bracket; A Y-axis adjustment module is installed on the bracket; A Z-axis adjustment module is installed on the Y-axis adjustment module, and the Z-axis adjustment module is driven by the Y-axis adjustment module to slide along the Y-axis direction; A welding module is installed on the Z-axis adjustment module, and the welding module is driven by the Z-axis adjustment module to slide along the Z-axis direction; the welding module includes a mounting plate, a pressure nozzle and an elastic member, the mounting plate is installed on the Z-axis adjustment module, and a through hole is opened on the mounting plate; the pressure nozzle is movably installed under the mounting plate and is arranged in alignment with the through hole; the elastic member acts between the mounting plate and the pressure nozzle, so that the pressure nozzle has a tendency to move away from the mounting plate along the Z-axis direction.

2. The welding tool according to claim 1, characterized in that: The Y-axis adjustment module includes a first guide rail and a second guide rail installed on the bracket and arranged opposite to each other along the Z-axis direction, a first slider installed on the first guide rail for sliding along the Y-axis direction, a second slider installed on the second guide rail for sliding along the Y-axis direction, and a first linear drive mechanism installed in linkage with the first slider or the second slider.

3. The welding tool according to claim 1, characterized in that: The Z-axis adjustment module includes an adapter plate installed on the Y-axis adjustment module, a third guide rail and a fourth guide rail arranged on the surface of the adapter plate away from the Y-axis adjustment module and opposite to each other along the Y-axis direction, a third slider slidably installed on the third guide rail along the Z-axis direction, a fourth slider slidably installed on the fourth guide rail along the Z-axis direction, and a second linear drive mechanism installed in linkage with the third slider or the fourth slider.

4. The welding tool according to claim 1, characterized in that: The welding module also includes an X-axis adjustment module installed below the mounting plate and a sliding plate installed on the X-axis adjustment module. The sliding plate is driven by the X-axis adjustment module to slide along the X-axis direction. An avoidance hole is provided on the sliding plate. The pressure nozzle is fixedly installed on the sliding plate and is aligned with the avoidance hole.

5. The welding tool according to claim 4, characterized in that: The X-axis adjustment module includes a connecting plate installed below the mounting plate, a fifth guide rail installed on the connecting plate, a fifth slider installed on the fifth guide rail for sliding along the X-axis direction, and a third linear drive mechanism installed in linkage with the fifth slider.

6. The welding tool according to claim 4, characterized in that: The pressure nozzle includes a pressure nozzle body and a mounting portion arranged on the pressure nozzle body, and the welding tool also includes a fixing piece, which passes through the sliding plate and is fixedly installed on the mounting portion. The elastic piece is sleeved on the fixing piece, and the first end of the elastic piece abuts against the sliding plate, and the second end of the elastic piece abuts against the mounting portion.

7. The welding tool according to claim 6, characterized in that: The through hole is an oblong hole, and the length direction of the through hole is arranged along the X-axis direction.

8. The welding tool according to claim 1, characterized in that: The welding module also includes an anti-reflection cover arranged on the mounting plate, and the anti-reflection cover is arranged around the outside of the through hole.

9. The welding tool according to claim 1, characterized in that: The welding tooling comprises one or more Y-axis adjustment modules, each Y-axis adjustment module is mounted with a Z-axis adjustment module, and each Z-axis adjustment module is mounted with a welding module.

10. The welding tool according to claim 1, characterized in that: The welding tool also includes a visual recognition device arranged above the welding module.

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