Battery pack welding device

Abstract

The utility model relates to a battery pack welding device which comprises a sliding frame and a welding mechanism used for welding a battery pack, the welding mechanism comprises a first welding mechanism and a second welding mechanism, and the first welding mechanism and / or the second welding mechanism are / is arranged on the sliding frame in a sliding mode. According to the battery pack welding device, the first welding mechanism and / or the second welding mechanism are / is arranged on the sliding frame in the sliding mode so that the distance between the first welding mechanism and the second welding mechanism can be adjusted, and therefore the battery pack welding device can be compatible with welding spot distribution of battery packs of different models, the universality of the battery pack welding device is improved, and the welding cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of welding technology, and in particular to a battery pack welding device. Background Technology

[0002] With the rapid development of new energy technologies, the pace of battery research and development is also accelerating, resulting in an increasing number of battery models produced by factories. Different battery models have significantly different battery pack dimensions, and the solder joint distribution also varies. Therefore, a corresponding welding device needs to be designed for each battery pack model, leading to difficulties in designing welding devices compatible with multiple battery pack models and poor versatility. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a battery pack welding device that is compatible with different models of battery packs, thereby improving versatility.

[0004] To achieve the above objectives, the present invention provides a battery pack welding device, including a sliding frame and a welding mechanism for welding the battery pack. The welding mechanism includes a first welding mechanism and a second welding mechanism, and the first welding mechanism and / or the second welding mechanism are slidably disposed on the sliding frame.

[0005] In one embodiment of the present invention, the first welding mechanism and the second welding mechanism form a welding group, and the welding group is slidably disposed on the sliding frame.

[0006] In one embodiment of the present invention, both the first welding mechanism and the second welding mechanism include a first connecting member, and a sliding movable part is slidably disposed on the sliding frame, and the first connecting member is detachably disposed on the sliding movable part.

[0007] In one embodiment of the present invention, the sliding frame is further provided with a sliding part, a sliding member is slidably provided on the sliding part, a connecting flange is provided on the sliding member, and the first connecting member is detachably provided on the connecting flange.

[0008] In one embodiment of this utility model, the sliding member and the connecting flange form a sliding module, and the sliding module is slidably disposed on the sliding frame.

[0009] In one embodiment of this utility model, a locking mechanism is provided on the connecting flange, one end of the locking mechanism is locked or unlocked with the connecting flange, and the other end of the locking mechanism is locked or unlocked with the first connecting member.

[0010] In one embodiment of this utility model, the locking mechanism includes a locking member, an operating member and a limiting member are provided on the locking member, and a limiting groove is provided on the first connecting member. The locking member, the operating member, the limiting member and the limiting groove cooperate to lock or unlock the connecting flange and the first connecting member.

[0011] In one embodiment of the present invention, the first welding mechanism and the second welding mechanism further include a second connector and a copper nozzle module, wherein the second connector is disposed on the first connector and the copper nozzle module is disposed on the second connector.

[0012] In one embodiment of this utility model, the first welding mechanism and the second welding mechanism are provided with air passages, and the air passages are connected to the copper nozzle module.

[0013] In one embodiment of this utility model, the sliding direction of the welding mechanism on the sliding frame is a first direction, and the first connecting member is provided with an air inlet on its side along the first direction, and the air inlet is connected to the air passage.

[0014] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art:

[0015] The first welding mechanism and the second welding mechanism of this application can be slidably mounted on the sliding frame to realize the distance between the first welding mechanism and the second welding mechanism, thereby being compatible with the welding point distribution of different battery pack models, improving the versatility of the battery pack welding device and reducing welding costs. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the battery pack welding device of this utility model;

[0018] Figure 2 yes Figure 1 A magnified view of a section at point A in the middle;

[0019] Figure 3 This is an exploded view of the welding mechanism of the battery pack welding device of this utility model;

[0020] Figure 4This is a schematic diagram of the first connection structure between the first connector and the first connecting flange of the battery pack welding device of this utility model;

[0021] Figure 5 This is a schematic diagram of the first connecting member and the second connecting flange of the battery pack welding device of this utility model.

[0022] Explanation of reference numerals on the accompanying drawings:

[0023] 1. Sliding frame; 2. First welding mechanism; 3. Second welding mechanism; 4. First connecting piece; 5. Sliding locator; 6. Sliding part; 7. Sliding component; 8. Connecting flange; 9. First sliding module; 10. Second sliding module; 11. Locking mechanism; 12. Locking component; 13. Operating component; 14. Limiting component; 15. Limiting groove; 16. Second connecting piece; 17. Copper nozzle module; 18. Air inlet; 19. First mounting surface; 20. Limiting part; 21. Locking part; 22. Threaded hole; 23. Positioning sleeve; 24. First through hole; 25. Receiving sleeve; 26. Second through hole; 27. Second mounting surface; 28. First welding group; 29. ​​Second welding group; 30. First air outlet; 31. Connecting groove; 32. Second air outlet; 33. Third connecting piece; 34. Copper nozzle; 35. Sliding groove. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] Reference Figures 1-5 As shown, the battery pack welding device of this utility model includes a sliding frame 1 and a welding mechanism for welding the battery pack. The welding mechanism includes a first welding mechanism 2 and a second welding mechanism 3, and the first welding mechanism 2 and / or the second welding mechanism 3 are slidably mounted on the sliding frame 1.

[0026] This application achieves adjustment of the distance between the first welding mechanism 2 and the second welding mechanism 3 through relative sliding, to ensure compatibility with solder joints on different battery pack models. Specifically, as shown... Figure 1As shown, the battery pack welding device of this application includes a first welding mechanism 2 and a second welding mechanism 3. Neither the first welding mechanism 2 nor the second welding mechanism 3 is fixed to the sliding frame 1; rather, the first welding mechanism 2 and / or the second welding mechanism 3 are slidably mounted on the sliding frame 1. That is, the first welding mechanism 2 is fixed to the sliding frame 1, and the second welding mechanism 3 is slidably mounted on the sliding frame 1; or, the first welding mechanism 2 is slidably mounted on the sliding frame 1, and the second welding mechanism 3 is fixed to the sliding frame 1; or, both the first welding mechanism 2 and the second welding mechanism 3 can be slidably mounted on the sliding frame 1. All three methods allow for adjustment of the distance between the first welding mechanism 2 and the second welding mechanism 3. Furthermore, the sliding direction of the welding mechanism on the sliding frame 1 is defined as the first direction. The welding area on the battery pack corresponding to the first welding mechanism 2 is called the first welding area, and the welding area on the battery pack corresponding to the second welding mechanism 3 is called the second welding area. The distance between the first welding area and the second welding area on different models of battery packs along the first direction is different. When the distance between the first welding area and the second welding area on the battery pack along the first direction is small, the distance between the first welding mechanism 2 and the second welding mechanism 3 can be reduced to accommodate the small distance between the first welding area and the second welding area on the battery pack. When the distance between the first welding area and the second welding area on the battery pack along the first direction is large, the distance between the first welding mechanism 2 and the second welding mechanism 3 can be increased to accommodate the large distance between the first welding area and the second welding area on the battery pack. Therefore, the first welding mechanism 2 and / or the second welding mechanism 3 of this application can be slidably arranged on the sliding frame 1 to realize the distance adjustment between the first welding mechanism 2 and the second welding mechanism 3, so as to be compatible with the distance between the first welding area and the second welding area of ​​different battery packs, that is, to be compatible with the welding point distribution of different battery packs along the first direction, thereby improving the versatility of the battery pack welding device and reducing the welding cost.

[0027] In one embodiment, the first welding mechanism 2 and the second welding mechanism 3 form a welding assembly, which is slidably mounted on a sliding frame.

[0028] The first welding mechanism 2 and the second welding mechanism 3 of this application form a welding assembly, which is used to weld the battery pack. Specifically, both the first welding mechanism 2 and the second welding mechanism 3 can be slidably mounted on the sliding frame 1, and one first welding mechanism 2 and one second welding mechanism 3 form a welding assembly, such as... Figure 1As shown, this application employs two welding groups, namely, a first welding group 28 and a second welding group 29. Therefore, the first welding group 28 and the second welding group 29 can be slidably mounted on the sliding frame 1, making the distance between them adjustable. The welding area on the battery pack corresponding to the first welding group 28 is the third welding area, and the welding area on the battery pack corresponding to the second welding group 29 is the fourth welding area. The distance between the third and fourth welding areas along the first direction differs for battery packs of different specifications. When the distance between the third and fourth welding areas along the first direction is small, the distance between the first welding group 28 and the second welding group 29 can be reduced to accommodate this smaller distance. Conversely, when the distance between the third and fourth welding areas along the first direction is large, the distance between the first welding group 28 and the second welding group 29 can be increased to accommodate this larger distance. Therefore, the first welding group 28 and the second welding group 29 of this application can be relatively slidably arranged on the sliding frame 1 to realize the distance adjustment between the first welding group 28 and the second welding group 29, so as to be compatible with the distance between the third welding area and the fourth welding area on different models of battery packs. That is, it can be compatible with the welding point distribution along the first direction of different models of battery packs, which improves the versatility of the battery pack welding device and reduces the welding cost.

[0029] In one embodiment, both the first welding mechanism 2 and the second welding mechanism 3 include a first connecting member 4, and a sliding locator 5 is slidably disposed on the sliding frame 1, with the first connecting member 4 detachably disposed on the sliding locator 5.

[0030] This application uses a sliding locator 5 to drive the first welding mechanism 2 and the second welding mechanism 3 to perform sliding movements. Specifically, the sliding mechanism of this application adopts a magnetic levitation sliding mechanism, the sliding frame is a sliding frame of the magnetic levitation sliding mechanism, and the sliding locator is a sliding locator of the magnetic levitation sliding mechanism. Utilizing the positional characteristics of the sliding locator 5 of the magnetic levitation mechanism, the sliding control precision is high, and the sliding locator 5 can be precisely slid to any desired position. For example... Figure 2As shown, the sliding locator 5 is magnetically levitated and slidably mounted on the sliding frame 1. Both the first welding mechanism 2 and the second welding mechanism 3 include a first connecting member 4, and both are connected to the sliding locator 5 via the first connecting member 4. Further, defining the horizontal direction perpendicular to the first direction as the second direction, the first connecting member 4 of the first welding mechanism 2 and the first connecting member 4 of the second welding mechanism 3 are detachably mounted on the sliding locator 5, thereby achieving detachable connections between the first connecting member 4 and the sliding locator 5, and between the second connecting member 16 and the sliding locator 5. This, in turn, achieves detachable connections between the first welding mechanism 2 and the sliding frame 1, and between the second welding mechanism 3 and the sliding frame 1, enabling the replacement of the first welding mechanism 2 and the second welding mechanism 3. This allows the first welding mechanism 2 and the second welding mechanism 3 on the sliding frame 1 to adapt to the welding point distribution along the second direction on the battery pack, thus ensuring compatibility with welding point distributions along the second direction on different battery pack models, improving the versatility of the battery pack welding device, and reducing welding costs.

[0031] In one embodiment, the sliding frame 1 is further provided with a sliding part 6, a sliding member 7 is slidably provided on the sliding part 6, a connecting flange 8 is provided on the sliding member 7, and a first connecting member 4 is detachably provided on the connecting flange 8.

[0032] This application improves the connection stability and sliding stability between the first welding mechanism 2, the second welding mechanism 3, and the sliding frame 1 through an auxiliary sliding mechanism. Specifically, for example... Figure 2As shown, the auxiliary sliding mechanism includes a sliding part 6, a sliding member 7, and a connecting flange 8. The sliding part 6 is a slide rail, and the sliding member 7 is a slider. The slider is slidably mounted on the slide rail, that is, the sliding member 7 is slidably mounted on the sliding part 6. Furthermore, the sliding part 6 is provided with a connecting flange 8, which connects the sliding member 7 and the first connecting member 4, thereby enabling the first connecting member 4 to slide with the assistance of the auxiliary sliding mechanism. In addition, the connecting flange 8 is detachably connected to the first connecting member 4, thus enabling the detachable connection between the first welding mechanism 2 and the sliding part 6, and between the second welding mechanism 3 and the sliding part 6. This allows for the replacement of the first welding mechanism 2 and the second welding mechanism 3, making the first welding mechanism 2 and the second welding mechanism 3 on the sliding frame 1 adaptable to the welding point distribution along the second direction on the battery pack. This ensures compatibility with the welding point distribution along the second direction on different battery pack models, improving the versatility of the battery pack welding device and reducing welding costs. Therefore, the sliding frame 1 of this application is slidably provided with a sliding locator 5 and a sliding member 7, and the first connecting member 4 is detachably connected to both the sliding locator 5 and the sliding member 7. This not only allows for the adjustment of the distance between the first welding mechanism 2 and the second welding mechanism 3 along the first direction to accommodate the welding point distribution along the first direction on different types of battery packs, but also allows for the replacement of the first welding mechanism 2 and the second welding mechanism 3 to accommodate the welding point distribution along the second direction on different types of battery packs. Therefore, the battery pack welding device of this application can accommodate both the welding point distribution along the first direction and the welding point distribution along the second direction on the battery pack, effectively improving the versatility of the battery pack welding device and saving welding costs.

[0033] In one embodiment, the slider 7 and the connecting flange 8 form a sliding module, which is slidably disposed on the sliding frame 1.

[0034] The first welding mechanism 2 and the second welding mechanism 3 of this application are both connected by a sliding module to improve the versatility of the connection to the first connector 4. Specifically, as shown... Figure 2As shown, a sliding member 7 and a connecting flange 8 form a sliding module. The battery pack welding device of this application uses two sliding modules, namely, a first sliding module 9 and a second sliding module 10. The first connecting member 4 is slidably mounted on the sliding frame 1 through both the first sliding module 9 and the second sliding module 10. Further, the sliding member 7 of the first sliding module 9 is slidably mounted on the sliding part 6 of the sliding frame 1, and the connecting flange 8 of the first sliding module 9 is detachably connected to the sliding member 7 of the first sliding module 9; the sliding member 7 of the second sliding module 10 is slidably mounted on the sliding part 6 of the sliding frame 1, and the connecting flange 8 of the second sliding module 10 is detachably connected to the sliding member 7 of the second sliding module 10; one end of the first connecting member 4 is connected to the connecting flange 8 of the first sliding module 9, and the other end of the first connecting member 4 is connected to the connecting flange 8 of the second sliding module 10. Since both the first welding mechanism 2 and the second welding mechanism 3 are slidably connected to the sliding frame 1 through the first sliding module 9 and the second sliding module 10, the distance between the first sliding module 9 and the second sliding module 10 can be adjusted. When it is necessary to replace the first welding mechanism 2 and the second welding mechanism 3 to be compatible with the welding point distribution along the second direction on different models of battery packs, since the first connecting piece 4 has different sizes, that is, the first connecting piece 4 has different lengths along the first direction, the corresponding connection hole positions connected to the connecting flange 8 are different. Therefore, the relative sliding of the first sliding module 9 and the second sliding module 10 on the sliding part 6 can be compatible with the connection hole positions of the connecting flange 8 of different sizes, which improves the versatility of the battery pack welding device for the first connecting piece 4 on the first welding mechanism 2 and the second welding mechanism 3 and saves welding costs.

[0035] In one embodiment, a locking mechanism 11 is provided on the connecting flange 8. One end of the locking mechanism 11 is locked or unlocked with the connecting flange 8, and the other end of the locking mechanism 11 is locked or unlocked with the first connecting member 4.

[0036] In this application, the connecting flange 8 and the first connecting member 4 are connected to each other via a locking mechanism 11, which enables the connection between the connecting flange 8 and the first welding mechanism 2 and the second welding mechanism 3. Specifically, the locking mechanism 11 is mounted on the connecting flange 8, with one end connected to the connecting flange 8 and the other end connected to the first connecting member 4. When the locking mechanism 11 is locked to the connecting flange 8 and the first connecting member 4, the first welding mechanism 2 and the second welding mechanism 3 are stably connected to the sliding part 6. When the locking mechanism 11 is unlocked from the connecting flange 8 and the first connecting member 4, the first connecting member 4 can be removed from the connecting flange 8, thereby enabling a detachable connection between the first welding mechanism 2 and the second welding mechanism 3 and the sliding part 6, that is, enabling a detachable connection between the first welding mechanism 2 and the second welding mechanism 3 and the sliding frame 1.

[0037] In one embodiment, the locking mechanism 11 includes a locking member 12, which is provided with an operating member 13 and a limiting member 14. The first connecting member 4 is provided with a limiting groove 15. The locking member 12, the operating member 13, the limiting member 14 and the limiting groove 15 cooperate to lock or unlock the connecting flange 8 and the first connecting member 4.

[0038] In this application, the connecting flange 8 and the first connecting member 4 are connected via a locking mechanism 11, which enables the connecting flange 8 to engage with the first welding mechanism 2 and the second welding mechanism 3. Specifically, the locking mechanism 11 includes a locking member 12, an operating member 13, a limiting member 14, and a limiting groove 15. The locking or unlocking of the connecting flange 8 and the first connecting member 4 is achieved through the mutual cooperation of the locking member 12, the operating member 13, the limiting member 14, and the limiting groove 15. Further, as... Figure 4 and Figure 5 As shown, the locking member 12 includes a limiting part 20 and a locking part 21. An operating member 13 and a limiting member 14 are disposed on the locking part 21. The limiting part 20 is used to limit the movement of the connecting flange 8. The locking part 21, driven by the operating member 13, cooperates with the limiting member 14 and the limiting groove 15 to lock or unlock the connecting flange 8 and the first connecting member 4. The locking part 21 has a threaded hole 22. The operating member 13 is a bolt, threadedly connected to the threaded hole 22. Therefore, as... Figure 4 and Figure 5As shown, when the operating member 13 rotates within the threaded hole 22 on the locking part 21, it has the ability to move upward or downward. A sliding groove 35 is provided on the locking part 21 at the end away from the limiting part 20 (the end of the locking part 21 near the limiting groove 15). The axis of the sliding groove 35 intersects the axis of the threaded hole 22, preferably perpendicularly, and the sliding groove 35 is connected to the threaded hole 22 so that the operating member 13 can slide into the sliding groove 35 when rotating in the threaded hole 22, so that the bottom of the operating member 13 can slide in cooperation with the limiting member 14. The limiting member 14 is slidably disposed in the sliding groove 35. The limiting member 14 is a limiting ball. When the operating member 13 rotates in the threaded hole 22, the end of the operating member 13 near the sliding groove 35 contacts or separates from the limiting ball. Therefore, the operating member 13 can make the limiting ball stand in different positions, thereby achieving locking and unlocking by the limiting ball in different positions cooperating with the limiting groove 15 on the first connecting member 4. Furthermore, a positioning sleeve 23 is provided on the connecting flange 8, and the connecting flange 8 is fixedly connected to the positioning sleeve 23. The positioning sleeve 23 is provided with a first through hole 24, and the locking part 21 of the locking member 12 passes through the first through hole 24. A receiving sleeve 25 is provided on the first connecting member 4, and the first connecting member 4 is fixedly connected to the receiving sleeve 25. A limiting groove 15 is provided on the receiving sleeve 25, and the receiving sleeve 25 is provided with a second through hole 26. The axes of the first through hole 24 and the second through hole 26 coincide, and the second through hole 26 communicates with the limiting groove 15. The locking part 21 of the locking member 12 passes through the second through hole 26 and extends into the limiting groove 15, so that the sliding groove 35 and the limiting groove 15 are aligned. When it is necessary to replace the first welding mechanism 2 and the second welding mechanism 3 on the sliding frame 1, that is, when it is necessary to disassemble and assemble the first connecting member 4 and the connecting flange 8, the first step is to disassemble the first connecting member 4 being replaced from the connecting flange 8: Figure 4 In the indicated position, rotate the operating member 13 so that it spirals upward in the threaded hole 22 of the locking part 21, separating the bottom of the operating member 13 from the limiting member 14. Then, pull the locking member 12 upward, causing the locking member 12 to move the limiting member 14 upward until the limiting member 14 contacts the wall of the second through hole 26. Then, continue to pull the locking member 12 so that the limiting member 14 slides down into the sliding groove 35 from the contact with the wall of the second through hole 26. Then, continue to pull the locking member 12 to remove it from the first through hole 24, thereby unlocking and separating the connecting flange 8 from the first connecting member 4. The following is the installation process of installing the new first connecting member 4 onto the connecting flange 8: Figure 5In the indicated position, the first connecting piece 4 is aligned with the connecting flange 8, that is, the first through hole 24 on the positioning sleeve 23 and the second through hole 26 on the receiving sleeve 25 are aligned. Then, the locking piece 12 is inserted into the first through hole 24. At this time, the limiting piece 14 is in the sliding groove 35. Continue to insert the locking piece 12 into the first through hole 24. When the limiting part 20 of the locking piece 12 contacts the top surface of the positioning sleeve 23, the axis of the sliding groove 35 on the locking part 21 is aligned with the limiting groove 15. Then, rotate the operating piece 13 so that the operating piece 13 spirals down in the threaded hole 22. When the operating piece 1... When the bottom end of the operating member 13 contacts the limiting member 14, the contact area between the two is always located on the side of the limiting member 14 closer to the center of the operating member 13. Continuing to rotate the operating member 13, the bottom end of the operating member 13 abuts against the limiting member 14, causing the limiting member 14 to move towards the limiting groove 15 in the sliding groove 35. Continuing to rotate the operating member 13 until the surface of the limiting member 14 abuts against the limiting groove 15, and the limiting member 14 and the limiting groove 15 are locked together, at which point the first connecting member 4 and the connecting flange 8 are limited between the locking part 21 of the locking member 12 and the limiting groove 15, thus locking the first connecting member 4 and the connecting flange 8. The locking mechanism 11 enables quick switching between the first connecting member 4 and the connecting flange 8, that is, it enables quick switching between the first welding mechanism 2 and the second welding mechanism 3 on the sliding frame 1, effectively improving the quick switching efficiency.

[0039] In one embodiment, the first welding mechanism 2 and the second welding mechanism 3 further include a second connector 16 and a copper nozzle module 17, wherein the second connector 16 is disposed on the first connector 4 and the copper nozzle module 17 is disposed on the second connector 16.

[0040] The first welding mechanism 2 and the second welding mechanism 3 achieve welding through the copper nozzle module 17. Specifically, as shown... Figure 2 As shown, both the first welding mechanism 2 and the second welding mechanism 3 include a first connecting member 4, a second connecting member 16, and a copper nozzle module 17. The first connecting member 4 is connected to the connecting flange 8 to connect the welding mechanism to the sliding frame 1; the second connecting member 16 is connected to the first connecting member 4, and the copper nozzle module 17 is disposed on the second connecting member 16. When the first connecting member 4 slides on the sliding frame 1, the first connecting member 4 drives the second connecting member 16 to move, and the second connecting member 16 drives the copper nozzle module 17 to move, so as to adjust the position of the copper nozzle module 17 so that the position of the copper nozzle module 17 is aligned with the welding area on the battery pack to accommodate the weld points on the battery pack and facilitate welding operations. The copper nozzle module 17 includes multiple copper nozzles 34, and the distribution of the copper nozzles 34 matches the distribution of the weld points on the battery pack. Furthermore, a third connecting member 33 is also provided between the first connecting member 4 and the second connecting member 16, such as... Figure 3As shown, the third connector 33 is provided with a plurality of first air outlets 30, a total of eight first air outlets 30. One copper nozzle module 17 is provided with eight copper nozzles 34. The first air outlets 30 and copper nozzles 34 are provided one-to-one. The protective gas of each copper nozzle 34 is discharged through the corresponding first air outlet 30. The third connector 33 is provided with four connecting grooves 31. Two first air outlets 30 correspond to one connecting groove 31. Two adjacent first air outlets 30 are connected by a connecting groove 31. The connecting groove 31 connects two first air outlets 30. The airflow converges, and the first connector 4 is provided with four second air outlets 32. Each second air outlet 32 ​​corresponds to a connecting groove 31. The airflow that converges in the connecting groove 31 is finally discharged through the corresponding second air outlet 32, and then discharged through the corresponding gas collection hood (not shown in the figure). Therefore, the protective airflow of two adjacent copper nozzles 34 is combined into one by the third connector 33. Thus, the airflow of the eight copper nozzles 34 can finally be discharged through four gas collection hoods. There is no need to set an exhaust hood for each copper nozzle 34, which reduces the cost and reduces the space occupied by the gas collection hood.

[0041] In one embodiment, the first welding mechanism 2 and the second welding mechanism 3 are provided with air passages, which are connected to the copper nozzle module 17.

[0042] The first welding mechanism 2 and the second welding mechanism 3 of this application are provided with gas passages to improve welding quality. Specifically, the gas passages are located on the first connector 4, the second connector 16, the third connector 33, and the copper nozzle module 17. Shielding gas flows through the gas passages and is ultimately delivered to the copper nozzle module 17, specifically to its end. This allows the shielding gas at the end to protect the weld joint, preventing weld oxidation and improving welding quality. The shielding gas can be an inert gas. Because the gas passages are located on the first welding mechanism 2 and the second welding mechanism 3, replacing either mechanism also replaces the gas passages, eliminating the need for additional gas passage layout operations. This allows for rapid replacement of the gas passages, effectively improving replacement efficiency.

[0043] In one embodiment, the sliding direction of the welding mechanism on the sliding frame 1 is a first direction, and the first connecting member 4 is provided with an air inlet 18 on its side along the first direction. The air inlet 18 is connected to the air passage.

[0044] The air inlet 18 is located on the side of the first connector 4 along the first direction to prevent damage to the air inlet 18 when adjusting the distance between the first welding mechanism 2 and the second welding mechanism 3. Specifically, as shown... Figure 1As shown, the sliding direction of the welding mechanism on the sliding frame 1 is the first direction, and the horizontal direction perpendicular to the first direction is the second direction. Both the first welding mechanism 2 and the second welding mechanism 3 have a first mounting surface 19 and a second mounting surface 27 formed on them. Figure 2 and Figure 3 As shown, the first mounting surface 19 is a mounting surface along the first direction, and the second mounting surface 27 is a mounting surface along the second direction. Since the distance between the first welding mechanism 2 and the second welding mechanism 3 is adjustable, when the distance between the two adjacent second mounting surfaces 27 of the first welding mechanism 2 and the second welding mechanism 3 is small, if the air inlet 18 is located on the second mounting surfaces 27 of the first welding mechanism 2 and the second welding mechanism 3, there may be a collision between the air inlets 18 on the two adjacent second mounting surfaces 27 and the pipes connected to the air inlets 18. Therefore, in this application, the air inlet 18 is located on the side of the first connector 4 along the first direction, that is, on the first mounting surface 19. Even when the two adjacent second mounting surfaces 27 of the first welding mechanism 2 and the second welding mechanism 3 are in contact, the air inlet 18 and its pipes will not collide, thus improving the reliability of the battery pack welding device.

[0045] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments. Many other equivalent embodiments may be included without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A battery pack welding apparatus, characterized by: The utility model relates to a welding mechanism for welding battery pack, comprising a sliding frame (1) and a welding mechanism for welding the battery pack, the welding mechanism comprises a first welding mechanism (2) and a second welding mechanism (3), the first welding mechanism (2) and / or the second welding mechanism (3) are slidably arranged on the sliding frame (1), the first welding mechanism (2) and the second welding mechanism (3) all comprise a first connecting piece (4), a sliding sub (5) is slidably arranged on the sliding frame (1), and the first connecting piece (4) is detachably arranged on the sliding sub (5).

2. The battery pack welding apparatus of claim 1, wherein: The first welding mechanism (2) and the second welding mechanism (3) form a welding group, and the welding group is relatively slidably arranged on the sliding frame (1).

3. The battery pack welding apparatus of claim 1, wherein: The sliding frame (1) is further provided with a sliding part (6), the sliding part (6) is slidably provided with a sliding piece (7), the sliding piece (7) is provided with a connecting flange (8), and the first connecting piece (4) is detachably arranged on the connecting flange (8).

4. The battery pack welding apparatus of claim 3, wherein: The sliding piece (7) and the connecting flange (8) form a sliding module, and the sliding module is relatively slidably arranged on the sliding frame (1).

5. The battery pack welding apparatus of claim 3, wherein: The connecting flange (8) is provided with a locking mechanism (11), one end of the locking mechanism (11) is locked or unlocked with the connecting flange (8), and the other end of the locking mechanism (11) is locked or unlocked with the first connecting piece (4).

6. The battery pack welding apparatus of claim 5, wherein: The locking mechanism (11) comprises a locking piece (12), the locking piece (12) is provided with an operating piece (13) and a limiting piece (14), the first connecting piece (4) is provided with a limiting groove (15), and the locking piece (12), the operating piece (13), the limiting piece (14) and the limiting groove (15) are matched to lock or unlock the connecting flange (8) and the first connecting piece (4).

7. The battery pack welding apparatus of claim 1, wherein: The first welding mechanism (2) and the second welding mechanism (3) further comprise a second connecting piece (16) and a copper nozzle module (17), the second connecting piece (16) is arranged on the first connecting piece (4), and the copper nozzle module (17) is arranged on the second connecting piece (16).

8. The battery pack welding apparatus of claim 7, wherein: The first welding mechanism (2) and the second welding mechanism (3) are provided with a gas path passage, and the gas path passage is communicated with the copper nozzle module (17).

9. The battery pack welding apparatus of claim 8, wherein: The sliding direction of the welding mechanism on the sliding frame (1) is a first direction, the first connecting piece (4) is provided with an air inlet (18) on the side surface in the first direction, and the air inlet (18) is communicated with the gas path passage.

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