Welding equipment compatible with top and side pole columns

Abstract

The utility model discloses welding equipment compatible with top and side pole columns, which comprises a conveying line module, a top and side welding and pressing mechanism and a robot module, and is characterized in that the conveying line module comprises a rack and a conveying line assembled on the rack, and the conveying line is used for conveying a battery module to a welding station; the top side part welding and pressing mechanism is erected on the rack, is positioned above the welding station and is used for pressing and fixing top side part pole columns of the battery modules; the robot module is located on one side of the rack and comprises a robot and a laser welding head arranged at the movable end of the robot, and the laser welding head is driven by the robot to conduct laser welding on the top side pole of the battery module together with the top side welding and pressing mechanism. According to the utility model, the top and side part pole columns of the battery module are pressed through the top and side part welding and pressing mechanism, and then the robot carries the laser welding head to sequentially weld the top to-be-welded pole columns and the side to-be-welded pole columns of the battery module, so that the welding efficiency of the equipment is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of laser welding, in particular to a welding device compatible with top side poles. Background Art

[0002] Tab welding is a crucial step in the lithium-ion battery manufacturing process. It involves welding the tabs to the positive and negative poles of the battery module, connecting the positive and negative poles of the battery module to the external circuit. Its performance directly affects the battery's charge and discharge efficiency and overall stability, and plays a vital role in the safety and performance of lithium-ion batteries. In actual production, single-sided welding is primarily used to weld tabs to the top and side poles of the battery module. This is not only cumbersome but also suffers from low welding efficiency. Utility Model Content

[0003] The utility model provides a welding device compatible with top and side poles. The top and side poles of the battery module are pressed by the top and side welding and pressing mechanism. Then, a robot carrying a laser welding head sequentially welds the top poles and side poles of the battery module to be welded, which greatly improves the welding efficiency of the equipment. The specific scheme is as follows:

[0004] A welding device compatible with top-side poles, comprising:

[0005] A conveyor line module, comprising a frame and a conveyor line assembled on the frame, the conveyor line being used to convey the battery module to the welding station;

[0006] The top side welding and pressing mechanism includes a top welding and pressing mechanism and a side welding and pressing mechanism. The top welding and pressing mechanism includes a first fixing frame and a first copper nozzle assembly. The first copper nozzle assembly is horizontally mounted above the frame through the first fixing frame, and is used to press and fix the top surface pole of the battery module; the side welding and pressing mechanism includes a second fixing frame and a second copper nozzle assembly. The second copper nozzle assembly is vertically mounted above the frame through the second fixing frame, and is used to press and fix the side pole of the battery module;

[0007] A robot module is located on one side of the frame and includes a robot and a laser welding head arranged at the movable end of the robot. The laser welding head, driven by the robot, works together with the top side welding mechanism to laser weld the top side poles of the battery module.

[0008] Its beneficial effects are: the top welding and pressing mechanisms and the side welding and pressing mechanisms simultaneously press and fix the top and side poles to be welded of the battery cell module, and then the robot carries the laser welding head to perform laser welding on the top and side poles to be welded in turn, thereby greatly improving the welding efficiency and welding quality of the welding equipment.

[0009] Furthermore, the welding equipment of the embodiment of the present application also includes a three-axis drive module, which includes a first drive component, a second drive component, a third drive component and a first mounting plate. The first drive component is provided with two groups, which are respectively mounted on the racks on both sides of the conveyor line in parallel with the direction of the conveyor line; the second drive component is provided with four groups, which are respectively vertically mounted on the drive ends of the first drive component in pairs; the third drive component is provided with two groups, which are respectively mounted on the drive ends of the two second drive components in perpendicular to the direction of the conveyor line; the first mounting plate is provided with two groups, which are respectively mounted on the drive ends of the two third drive components; the first fixing frame and the second fixing frame are mounted on the first mounting plate. Its beneficial effect is that through the setting of the three-axis drive module, the position of the top side welding and pressing mechanism can be adjusted in the three directions of XYZ, so that the equipment can adjust the position of the top side welding and pressing mechanism according to the size of the battery module.

[0010] Furthermore, the top welding mechanism also includes a fourth driving assembly, the fourth driving assembly is vertically mounted on the first mounting plate, and the first fixing frame is mounted on the driving end of the fourth driving assembly.

[0011] Furthermore, the top welding and pressing mechanism also includes a fourth drive assembly, which is vertically mounted on the first mounting plate, and the first fixing bracket is mounted on the driving end of the fourth drive assembly. The fourth drive assembly allows the top welding and pressing mechanism to be raised and lowered vertically to achieve compression of the top posts to be welded on battery modules of different specifications, providing a high degree of flexibility.

[0012] Furthermore, the side welding and pressing mechanism also includes a fifth drive assembly, a second mounting plate, and a sixth drive assembly. The fifth drive assembly is vertically mounted on the first mounting plate, the second mounting plate is mounted on the driving end of the fifth drive assembly, the sixth drive assembly is horizontally mounted on the second mounting plate, and the second fixing frame is mounted on the driving end of the sixth drive assembly. The beneficial effects are as follows: through the provision of the fifth drive assembly, the side welding and pressing mechanism can be raised and lowered in the vertical direction, and through the provision of the sixth drive assembly, the side welding and pressing mechanism can be extended and retracted in the horizontal direction, so as to achieve the compression of the side poles to be welded of battery modules of different specifications, with a high degree of flexibility.

[0013] Furthermore, the welding equipment of the embodiment of the present application also includes a top ranging module, which is located above the top welding and pressing mechanism, and includes a third mounting plate, a seventh drive assembly, a third fixed frame and a top ranging assembly. The third mounting plate is horizontally mounted on the first mounting plate, the seventh drive assembly is horizontally mounted on the third mounting plate, and the seventh drive assembly is perpendicular to the first mounting plate, and the top ranging assembly is vertically mounted on the drive end of the seventh drive assembly through the third fixed frame.

[0014] Furthermore, the welding equipment of the embodiment of the present application also includes a top photographing module, which is arranged on both sides of the first mounting plate opposite to the top welding and pressing mechanism, and includes a fourth mounting plate, a fifth mounting plate and a top photographing assembly, one end of the fourth mounting plate is horizontally mounted on the first mounting plate, the fifth mounting plate is vertically mounted on the other end of the fourth mounting plate, and the top photographing assembly is vertically mounted on the fifth mounting plate.

[0015] Furthermore, the welding equipment of the embodiment of the present application also includes a side camera positioning module, which includes an eighth drive component, a fourth fixed frame, a side ranging component and a side camera component. The eighth drive component is vertically assembled on the first mounting plate, and the side ranging component and the side camera component are horizontally assembled on the drive end of the eighth drive component through the fourth fixed frame respectively.

[0016] Furthermore, the welding equipment of the embodiment of the present application further includes a pallet lifting and positioning mechanism, which is assembled on the frame and located below the welding station.

[0017] Furthermore, the conveyor line module of the present embodiment also includes a tray assembly, which is assembled to the conveyor line and includes a tray, a guide member, and a baffle assembly. The guide member is laterally assembled to the tray. Two sets of baffle assemblies are arranged opposite each other and assembled to the trays on both sides of the battery module. The baffle assemblies include a base plate and baffles vertically assembled to the base plate. The bottom surface of the base plate is provided with slots for assembling the guide members, allowing the baffle assembly to move along the guide member and be assembled to the tray. The two baffles are respectively pressed against the sides of the battery module. This has the beneficial effect of making the tray assembly suitable for fixing battery modules of different sizes, thereby improving the flexibility of the equipment.

[0018] Furthermore, the baffle assembly of the embodiment of the present application also includes a guide rail assembly, a vertical plate, and a clamp. The guide rail assembly includes a guide rail and a slider slidably mounted on the guide rail. The guide rail is horizontally mounted on the base plate, and the baffle is vertically mounted on the slider, allowing the baffle to move relative to the guide rail. The vertical plate is vertically mounted on the base plate. The clamp is mounted on the vertical plate, and the end of the clamp abuts the baffle to press the baffle against the battery module. The beneficial effect is that the installation of the guide rail assembly and the clamp makes the battery module more firmly fixed, preventing shaking during transportation.

[0019] The beneficial effect of the present invention is that the present invention can simultaneously press the top pole to be welded and the side pole to be welded of the battery cell module through the arrangement of the top side welding and pressing mechanism, and then the robot carries the laser welding head to perform laser welding on the top pole to be welded and the side pole to be welded in turn, thereby greatly improving the welding efficiency and welding quality of the welding equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of a welding device compatible with top side poles of the present invention;

[0021] Figure 2 for Figure 1 A schematic structural diagram of a robot module of the welding equipment shown;

[0022] Figure 3 for Figure 1 A schematic structural diagram of a conveyor line module of the welding equipment shown;

[0023] Figure 4 for Figure 3 Schematic diagram of the structure of the tray assembly of the conveyor line module shown

[0024] Figure 5 for Figure 1 Schematic diagram of the assembly structure of the three-axis drive module and the top and side welding and pressing mechanism of the welding equipment shown;

[0025] Figure 6 for Figure 5 The structural diagram of the three-axis drive module shown;

[0026] Figure 7 for Figure 5 The schematic diagram of the structure of the top side welding and pressing mechanism is shown;

[0027] Figure 8 、 9 for Figure 5 Schematic diagram of the split structure of the three-axis drive module and the top and side welding and pressing mechanism;

[0028] Figure 10for Figure 8 Schematic diagram of the assembly structure of the top welding and pressing mechanism, the top distance measurement module, the top camera module and the third drive component;

[0029] Numbers in the figure: 1. Conveyor line module; 11. Frame; 12. Conveyor line; 13. Tray assembly; 131. Tray; 132. Guide; 133. Baffle assembly; 1331. Bottom plate; 1332. Baffle; 134. Guide rail assembly; 135. Vertical plate; 136. Clamp; 2. Top side welding and pressing mechanism; 21. Top welding and pressing mechanism; 211. First fixing frame; 212. First copper nozzle assembly; 213. Fourth drive assembly; 22. Side welding and pressing mechanism; 221. Second fixing frame; 222. Second copper nozzle assembly; 223. Fifth drive assembly; 224. Second mounting plate; 225. Sixth drive assembly; 23. Top ranging module ; 231. Third mounting plate; 232. Seventh drive assembly; 233. Third fixing bracket; 234. Top ranging assembly; 24. Top photographing module; 241. Fourth mounting plate; 242. Fifth mounting plate; 243. Top photographing assembly; 25. Side photographing and positioning module; 251. Eighth drive assembly; 252. Fourth fixing bracket; 253. Side ranging assembly; 254. Side photographing assembly; 3. Robot module; 31. Robot; 32. Laser welding head; 4. Three-axis drive module; 41. First drive assembly; 42. Second drive assembly; 43. Third drive assembly; 44. First mounting plate; 5. Pallet lifting and positioning mechanism. DETAILED DESCRIPTION

[0030] In order to help those skilled in the art better understand 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 embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0031] Combine Figure 1-5As shown, this embodiment provides a welding device compatible with top side poles, including: a conveyor line module 1, a top side welding and pressing mechanism 2 and a robot module 3, the conveyor line module 1 includes a frame 11 and a conveyor line 12 assembled on the frame 11, the conveyor line 12 is used to convey the battery module to the welding station; the top side welding and pressing mechanism 2 is mounted on the frame 11 and is located above the welding station, and is used to press and fix the top side poles of the battery module; the robot module 3 is located on one side of the frame 11, including a robot 31 and a laser welding head 32 arranged at the movable end of the robot 31, and the laser welding head 32 is driven by the robot 31 and works together with the top side welding and pressing mechanism 2 to laser weld the top side poles of the battery module. In this solution, when the welding equipment is working, the conveyor line module 1 first conveys the battery module to the welding station, and then the top side welding and pressing mechanism 2 presses the top pole to be welded and the side pole to be welded of the battery module, and then the robot 31 drives the laser welding head 32 to perform laser welding on the top pole to be welded and the side pole to be welded in turn, which greatly improves the welding efficiency and welding quality of the welding equipment. The most prominent feature of this solution is that the top side welding and pressing mechanism 2 simultaneously presses the top pole to be welded and the side pole to be welded of the battery module, and then the robot carries the galvanometer lens assembly to perform laser welding on the top pole to be welded and the side pole to be welded in turn, which makes the welding equipment more automated and intelligent, and improves the welding efficiency and welding quality of the equipment.

[0032] Specific, combined Figure 6-9 As shown, the top side welding and pressing mechanism 2 includes a top welding and pressing mechanism 21 and a side welding and pressing mechanism 22. The top welding and pressing mechanism 21 includes a first fixing frame 211 and a first copper nozzle assembly 212. The first copper nozzle assembly 212 is horizontally assembled to the first mounting plate 44 through the first fixing frame 211. It should be noted here that the top welding and pressing mechanism 21 is used to press the bar onto the top pole to be welded of the battery module. One or more groups can be set according to the number and distribution of the top poles to be welded of the battery module. In addition, the first copper nozzle assembly 212 is detachably arranged on the first fixing frame 211 and can be selected according to the type of battery module.

[0033] Furthermore, the side welding and pressing mechanism 22 includes a second fixing frame 221 and a second copper nozzle assembly 222. The second copper nozzle assembly 222 is vertically mounted to the first mounting plate 44 via the second fixing frame 221. Similarly, the side welding and pressing mechanism 22 is used to press the tabs against the side posts of the battery module to be welded. It can be configured based on the number and distribution of the side posts to be welded. In addition, the second copper nozzle assembly 222 is detachably mounted on the second fixing frame 221 and can be selected based on the type of battery module.

[0034] Furthermore, the welding equipment of this embodiment also includes a three-axis drive module 4, which includes a first drive component 41, a second drive component 42, a third drive component 43 and a first mounting plate 44. The first drive component 41 is provided with two groups, which are respectively assembled on the frames 11 on both sides of the conveyor line 12 in parallel with the direction of the conveyor line 12; the second drive component 42 is provided with four groups, which are respectively assembled vertically in pairs on the drive ends of the first drive component 41; the third drive component 43 is provided with two groups, which are respectively assembled at the drive ends of the two second drive components 42 in a direction perpendicular to the conveyor line 12; the first mounting plate 44 is provided with two groups, which are respectively assembled at the drive ends of the two third drive components 43; the top side welding and pressing mechanism 2 is assembled on the first mounting plate 44, and can move within a certain range under the drive of the three-axis drive module 4. In this solution, the setting of the three-axis drive module 4 enables the top welding and pressing mechanism 21 and the side welding and pressing mechanism 22 to be adjusted in position in the three directions of XYZ, so as to make preliminary adjustments to the positions of the top welding and pressing mechanism 21 and the side welding and pressing mechanism 22 according to the specifications and dimensions of different battery modules, so as to better realize the pressing and fixing of the top pole to be welded and the side pole to be welded, thereby improving the welding efficiency and welding accuracy of the equipment.

[0035] Furthermore, the top welding and pressing mechanism 21 also includes a fourth drive assembly 213, which is vertically mounted on the first mounting plate 44. The first fixing frame 211 is mounted on the driving end of the fourth drive assembly 213. Thus, driven by the fourth drive assembly 213, the top welding and pressing mechanism 21 can be vertically raised and lowered relative to the top electrode to be welded of the battery module, thereby achieving compression and loosening of the top electrode to be welded of the battery module.

[0036] Furthermore, the side welding and pressing mechanism 22 also includes a fifth drive assembly 223, a second mounting plate 224, and a sixth drive assembly 225. The fifth drive assembly 223 is vertically mounted on the first mounting plate 44, the second mounting plate 224 is mounted on the driving end of the fifth drive assembly 223, the sixth drive assembly 225 is horizontally mounted on the second mounting plate 224, and the second fixing frame 221 is mounted on the driving end of the sixth drive assembly 225. Thus, the side welding and pressing mechanism 22 can be vertically raised and lowered by the drive of the fifth drive assembly 223 and horizontally shifted by the drive of the sixth drive assembly 225, thereby achieving compression and loosening of the side posts to be welded of battery modules of different specifications and sizes.

[0037] Furthermore, the welding equipment of this embodiment also includes a top ranging component 23 and a top photographing component 24. The top ranging component 23 is located above the top welding and pressing mechanism 21 and is used to measure the distance between the top welding and pressing mechanism 21 and the top pole to be welded. It includes a third mounting plate 231, a seventh drive component 232, a third fixing frame 233 and a first laser rangefinder 234. The third mounting plate 231 is horizontally mounted on the first mounting plate 44, the seventh drive component 232 is horizontally mounted on the third mounting plate 231, and the seventh drive component 232 is perpendicular to the first mounting plate 44. The first laser rangefinder 234 is vertically mounted on the drive end of the seventh drive component 232 through the third fixing frame 233. The top camera assembly 24 and the top welding and pressing mechanism 21 are arranged opposite to each other on both sides of the first mounting plate 44, and are used for visual addressing of the top poles to be welded of the battery module. The top camera assembly 24 includes a fourth mounting plate 241, a fifth mounting plate 242 and a first camera assembly 243. One end of the fourth mounting plate 241 is horizontally mounted on the first mounting plate 44, the fifth mounting plate 242 is vertically mounted on the other end of the fourth mounting plate 241, and the first camera assembly 243 is vertically mounted on the fifth mounting plate 242.

[0038] Furthermore, the welding equipment of this embodiment also includes a side camera positioning module 25, which includes an eighth drive assembly 251, a fourth fixing frame 252, a side distance measuring assembly 253, and a side camera assembly 254. The eighth drive assembly 251 is vertically mounted on the first mounting plate 44, and the side distance measuring assembly 253 and the side camera assembly 254 are horizontally mounted on the driving end of the eighth drive assembly 251 via the fourth fixing frame 252. Thus, the side camera assembly 254 can be used to visually address the side poles to be welded of the battery module, and the side distance measuring assembly can be used to measure the distance between the side welding and pressing mechanism 22 and the side poles to be welded. In addition, the provision of the eighth drive assembly 251 allows the positions of the side camera assembly 254 and the side distance measuring assembly 253 to be adjusted in the vertical direction.

[0039] Furthermore, the welding equipment of this embodiment further includes a control module, which is respectively connected to the top welding device 21, the side welding device 22, the three-axis drive module 4, the top distance measurement module 23, the top camera module 24, and the side camera positioning module 25. In this solution, when the welding equipment is working, the control module first controls the three-axis drive module 4 to perform preliminary adjustments to the positions of the top welding mechanism 21 and the side welding mechanism 22, and then controls the top camera module 24, the top distance measurement module 23, and the side camera positioning module 25 to perform camera positioning on the top and side electrodes to be welded of the battery module, and controls the top welding mechanism 21 and the side welding mechanism 22 to press the top and side electrodes to be welded of the battery module according to the camera positioning results. Finally, the control module controls the robot module 3 to sequentially perform laser welding on the electrodes to be welded that have been pressed by the top welding mechanism and the side welding mechanism.

[0040] Further, combined Figure 4 As shown, the conveyor line module 1 of the embodiment of the present application also includes a tray assembly 13, which is assembled on the conveyor line 12 and includes a tray 131, a guide 132 and a baffle assembly 133. The guide 132 is horizontally assembled on the tray 131; the baffle assembly 133 is relatively arranged in two groups, respectively assembled on the tray 131 on both sides of the battery module, including a base plate 1311 and a baffle 1332 vertically assembled on the base plate 1331. The bottom surface of the base plate 1331 is provided with a slot for assembling the guide 132, so that the baffle assembly 133 can move along the direction of the guide 132 and be assembled on the tray 131; the two baffles 1332 are respectively pressed on both sides of the battery module. This arrangement makes the tray 131 compatible with the assembly of battery modules of different specifications and sizes.

[0041] Furthermore, in order to make the assembly of the battery module more secure, the baffle assembly 133 of the embodiment of the present application also includes a guide rail assembly 134, a vertical plate 135 and a clamp 136. The guide rail assembly 134 includes a guide rail and a slider slidably arranged on the guide rail. The guide rail is horizontally assembled on the base plate 1331, and the baffle 1332 is vertically assembled on the slider, so that the baffle 1332 can move relative to the guide rail; the vertical plate 135 is vertically assembled on the base plate 1331; the clamp 136 is assembled on the vertical plate 135, and the end of the clamp 136 abuts against the baffle 1332, which is used to press the baffle 1332 against the battery module.

[0042] The above descriptions are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, and these all fall within the scope of protection of the present invention.

Claims

1. A welding device compatible with top side poles, characterized in that: include: A conveyor line module (1), the conveyor line module (1) comprising a frame (11) and a conveyor line (12) assembled on the frame (11), the conveyor line (12) being used to convey the battery module to a welding station; A top side welding and pressing mechanism (2), the top side welding and pressing mechanism (2) comprising a top welding and pressing mechanism (21) and a side welding and pressing mechanism (22), the top welding and pressing mechanism (21) comprising a first fixing frame (211) and a first copper nozzle assembly (212), the first copper nozzle assembly (212) being horizontally mounted above the frame (11) via the first fixing frame (211) and being used to press and fix the top pole of the battery module; the side welding and pressing mechanism (22) comprising a second fixing frame (221) and a second copper nozzle assembly (222), the second copper nozzle assembly (222) being vertically mounted above the frame (11) via the second fixing frame (221) and being used to press and fix the side pole of the battery module; A robot module (3) is located on one side of the frame (11), comprising a robot (31) and a laser welding head (32) arranged at a movable end of the robot (31); the laser welding head (32) is driven by the robot (31) and works together with the top side welding mechanism (2) to laser weld the top side poles of the battery module.

2. The welding equipment according to claim 1, characterized in that The invention also includes a three-axis drive module (4), wherein the three-axis drive module (4) includes a first drive component (41), a second drive component (42), a third drive component (43) and a first mounting plate (44), wherein the first drive component (41) is provided with two groups, which are respectively mounted on the racks (11) on both sides of the conveying line (12) in parallel with the direction of the conveying line (12); the second drive component (42) is provided with four groups, which are respectively vertically mounted on the driving ends of the first drive component (41) in pairs; the third drive component (43) is provided with two groups, which are respectively mounted on the driving ends of the two second drive components (42) in perpendicular to the direction of the conveying line (12); the first mounting plate (44) is provided with two groups, which are respectively mounted on the driving ends of the two third drive components (43); the first fixing frame (211) and the second fixing frame (221) are mounted on the first mounting plate (44).

3. The welding equipment according to claim 2, characterized in that The top welding mechanism (21) further includes a fourth driving assembly (213), the fourth driving assembly (213) is vertically mounted on the first mounting plate (44), and the first fixing frame (211) is mounted on the driving end of the fourth driving assembly (213).

4. The welding equipment according to claim 2, characterized in that The side welding and pressing mechanism (22) further includes a fifth drive assembly (223), a second mounting plate (224) and a sixth drive assembly (225), wherein the fifth drive assembly (223) is vertically mounted on the first mounting plate (44), the second mounting plate (224) is mounted on the drive end of the fifth drive assembly (223), the sixth drive assembly (225) is horizontally mounted on the second mounting plate (224), and the second fixing frame (221) is mounted on the drive end of the sixth drive assembly (225).

5. The welding equipment according to claim 2, characterized in that The invention also includes a top distance measuring module (23), the top distance measuring module (23) is located above the top welding and pressing mechanism (21), and includes a third mounting plate (231), a seventh driving assembly (232), a third fixing frame (233) and a top distance measuring assembly (234), the third mounting plate (231) is horizontally mounted on the first mounting plate (44), the seventh driving assembly (232) is horizontally mounted on the third mounting plate (231), and the seventh driving assembly (232) is perpendicular to the first mounting plate (44), and the top distance measuring assembly (234) is vertically mounted on the driving end of the seventh driving assembly (232) through the third fixing frame (233).

6. The welding equipment according to claim 2, characterized in that The invention also includes a top photographing module (24), which is arranged on both sides of the first mounting plate (44) relative to the top welding and pressing mechanism (21), and includes a fourth mounting plate (241), a fifth mounting plate (242) and a top photographing assembly (243), one end of the fourth mounting plate (241) is horizontally mounted on the first mounting plate (44), and the fifth mounting plate (242) is vertically mounted on the other end of the fourth mounting plate (241); the top photographing assembly (243) is vertically mounted on the fifth mounting plate (242).

7. The welding equipment according to claim 2, characterized in that The invention also includes a side photographing and positioning module (25), wherein the side photographing and positioning module (25) includes an eighth driving component (251), a fourth fixing frame (252), a side distance measuring component (253) and a side photographing component (254), wherein the eighth driving component (251) is vertically mounted on the first mounting plate (44); the side distance measuring component (253) and the side photographing component (254) are respectively horizontally mounted on the driving end of the eighth driving component (251) through the fourth fixing frame (252), and are used for photographing and positioning the side poles of the battery module.

8. The welding equipment according to claim 1, characterized in that It also includes a tray lifting and positioning mechanism (5), which is assembled on the frame (11) and located below the welding station.

9. The welding device according to claim 1, characterized in that The conveyor line module (1) further comprises a tray assembly (13), the tray assembly (13) being assembled on the conveyor line (12) and comprising a tray (131), a guide member (132) and a baffle assembly (133), wherein the guide member (132) is laterally assembled on the tray (131); the baffle assembly (133) is arranged in two groups opposite to each other and respectively assembled on the tray (131) on both sides of the battery module, comprising a bottom plate (1331) and a baffle (1332) vertically assembled on the bottom plate (1331), the bottom surface of the bottom plate (1331) being provided with a slot for assembling the guide member (132), so that the baffle assembly (133) can move along the direction of the guide member (132) and be assembled on the tray (131); the two baffles (1332) are respectively pressed against both sides of the battery module.

10. The welding device according to claim 9, characterized in that The baffle assembly (133) further includes a guide rail assembly (134), a vertical plate (135) and a clamp (136). The guide rail assembly (134) includes a guide rail and a slider slidably arranged on the guide rail. The guide rail is horizontally mounted on the base plate (1331). The baffle (1332) is vertically mounted on the slider so that the baffle (1332) can move relative to the guide rail. The vertical plate (135) is vertically mounted on the base plate (1331). The clamp (136) is mounted on the vertical plate (135), and the end of the clamp (136) abuts against the baffle (1332) to press the baffle (1332) against the battery module.

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