Fine positioning multi-compatible module side seam welding tooling

Abstract

The application discloses a kind of fine positioning multi-compatible module side seam welding tool, include: positioner, support module, a pair of side plate compression module, a pair of end plate compression module and pole compression module;Wherein, positioner is provided with first rotating frame, positioner can drive first rotating frame rotation;Support module is connected with first rotating frame, for supporting the battery module to be welded;A pair of side plate compression module is connected with first rotating frame, and is set in support module two sides;A pair of end plate compression module is connected with first rotating frame, and is set in support module other two ends;Pole compression module is connected with first rotating frame, and is set in support module above.The welding process of the application is more stable, can realize automatic change type, without manual intervention, convenient and fast, can be compatible with different products, meet different welding needs, greatly improve the efficiency and welding quality of welding.

Description

Technical Field

[0001] This invention relates to the field of side seam welding fixtures, and in particular to a precision positioning multi-compatible module side seam welding fixture. Background Technology

[0002] With the popularization of new energy vehicles, lithium batteries, as their power source, have received widespread attention and have become one of the mainstream power sources. Side seam welding is a crucial process in the manufacturing of lithium battery modules, and the design of the side seam welding fixture plays a vital role in the welding quality. Traditional side seam welding fixtures for new energy lithium battery modules suffer from low production efficiency and inconsistent welding quality. Therefore, developing a new type of side seam welding fixture for new energy lithium battery modules that can improve welding efficiency and product quality has become an urgent need for technical personnel. Summary of the Invention

[0003] According to an embodiment of the present invention, a precision positioning multi-compatible module side seam welding fixture is provided, comprising: The positioner is equipped with a first rotating frame, and the positioner can drive the first rotating frame to rotate. A support module, which is connected to the first rotating frame, is used to support the battery module to be welded. A pair of side plate clamping modules are connected to the first rotating frame and are arranged on both sides of the support module; A pair of end plate clamping modules are connected to the first rotating frame and are located at the other two ends of the support module; The pole clamping module is connected to the first rotating frame and is positioned above the support module; The support module, a pair of side plate clamping modules, end plate clamping modules, and pole column clamping modules can rotate with the first rotating frame.

[0004] Furthermore, the support module includes: a pair of first support plates and a first positioning plate; A pair of first support plates are arranged parallel to each other on the first rotating frame and are fixedly connected to the first rotating frame; The first positioning plate is connected to a pair of first support plates at both ends, and a number of first positioning posts are provided on the first positioning plate.

[0005] Furthermore, the end plate clamping module includes: a first end plate clamping mechanism, a second end plate clamping mechanism, and a first gap adjustment mechanism; The first end plate clamping mechanism is located at one end of the support module, which can clamp the end plate onto the battery module from the side. The second end plate clamping mechanism is arranged adjacent to the first end plate clamping mechanism and can clamp the end plate from above. The output end of the first spacing adjustment mechanism is connected to the first end plate pressing mechanism and the second end plate pressing mechanism respectively, and can drive the first end plate pressing mechanism and the second end plate pressing mechanism to reciprocate linear motion.

[0006] Furthermore, the first spacing adjustment mechanism includes: a first spacing adjustment motor, a pair of first spacing adjustment slide rails, and a first spacing adjustment frame; the pair of first spacing adjustment slide rails are disposed on the first rotating frame, and the first spacing adjustment frame is slidably connected to the pair of first spacing adjustment slide rails; the first spacing adjustment motor is disposed on the first rotating frame, and its output end is connected to the first spacing adjustment frame, which can drive the first spacing adjustment frame to move along the first spacing adjustment slide rails. The first end plate clamping mechanism includes: a first end plate clamping cylinder and a first end plate clamping plate; the first end plate clamping cylinder is connected to the first spacing adjustment frame, and its output end is connected to the first clamping plate, which can drive the first end plate clamping plate to reciprocate. The second end plate clamping mechanism includes: a second end plate clamping cylinder, a lever assembly, and a second end plate clamping plate; one end of the lever assembly is movably connected to the output end of the second end plate clamping cylinder, the other end is connected to the second end plate clamping plate, and the middle part is hinged to the first spacing adjustment frame; the second end plate clamping cylinder is mounted on the first spacing adjustment frame and can drive the second end plate clamping plate to clamp the end plate of the battery module through the lever assembly.

[0007] Furthermore, the side panel clamping module includes: a first clamping plate group, several side panel clamping mechanisms, a pair of second spacing adjustment mechanisms, and several first dust collection mechanisms; A pair of second spacing adjustment mechanisms are set at both ends of the first rotating frame, and their output ends are respectively connected to both ends of the first pressing plate group, which can drive the first pressing plate group to move towards the side plate of the battery module and press the side plate. Several side plate clamping mechanisms are arranged on the first clamping plate group, which can clamp the folded edges of the side plates of the battery module; The suction ports of several first dust collection mechanisms are located on the first pressing plate assembly for sucking away welding slag.

[0008] Furthermore, the first clamping plate assembly is equipped with several dust extraction windows and limiting grooves; The first vacuuming mechanism includes: a vacuum cylinder, a vacuum nozzle, and a vacuum hose; The vacuum cylinder is mounted on the first rotating frame, and the vacuum nozzle is located inside the vacuum window. The vacuum nozzle is connected to the vacuum cylinder via a vacuum pipe.

[0009] Furthermore, it also includes: a first copper nozzle driving mechanism, which is connected to the first pressing plate group, and its output end is connected to the suction copper nozzle, which can drive the suction copper nozzle to move within the suction window.

[0010] Furthermore, the side plate clamping mechanism includes: a first side plate clamping block and a first clamping block driving cylinder; The first pressure block drive cylinder is connected to the first pressure plate group, and its output end is connected to the first side plate pressure block, which can drive the first side plate pressure block to move up and down. The first side plate pressure block cooperates with the limiting groove to press the folded edge of the side plate of the battery module.

[0011] Furthermore, it also includes: several second vacuuming mechanisms and several second copper nozzle driving mechanisms; A number of second copper nozzle drive mechanisms correspond one-to-one with a number of second dust collection mechanisms. The number of second copper nozzle drive mechanisms are respectively set at both ends of the first rotating frame and connected to the positioner. Their output ends are connected to the dust collection copper nozzles of the second dust collection mechanism, which can drive the dust collection copper nozzles of the second dust collection mechanism to reciprocate. The suction cylinder of the second suction mechanism is mounted on the positioner.

[0012] Furthermore, the pole clamping module includes: a pole clamping fixing frame, at least one pole clamping cylinder, several clamping rollers, a roller fixing frame, and a pair of lateral adjustment cylinders; A pair of lateral adjustment cylinders are located at both ends of the first rotating frame and connected to the first rotating frame. The output ends of the pair of lateral adjustment cylinders are respectively connected to the pole column clamping and fixing frame, which can drive the pole column clamping and fixing frame to reciprocate. The pole clamping cylinder is mounted on the pole clamping fixing frame, and its output end is connected to the roller fixing frame, which can drive the roller fixing frame to move up and down. Several clamping rollers are hinged to roller fixing frames to clamp the battery module.

[0013] According to the embodiments of the present invention, the precision positioning multi-compatible module side seam welding fixture makes the welding process more stable, enables automatic type change without manual intervention, is convenient and fast, can be compatible with different products, meets different welding requirements, and greatly improves welding efficiency and welding quality.

[0014] It should be understood that both the foregoing general description and the following detailed description are exemplary and intended to provide further illustration of the claimed technology. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a perspective view according to an embodiment of the present invention; Figure 2 for Figure 1 Enlarged view of point A; Figure 3 for Figure 1 Enlarged view of point B; Figure 4 for Figure 1 The main view; Figure 5 for Figure 1 Top view; Figure 6 This is a schematic diagram of a perspective view after removing the side plate clamping module and the pole clamping module according to an embodiment of the present invention; Figure 7 for Figure 6 Enlarged view of point C; Figure 8 This is a schematic diagram of a perspective view after removing the side plate clamping module, the pole clamping module, and the battery module according to an embodiment of the present invention; Figure 9 for Figure 8 Enlarged view of point D; Figure 10 for Figure 8 Top view; Figure 11 for Figure 10 Enlarged view of point E; Figure 12 This is a schematic diagram of a first-view perspective view of a side panel clamping module according to an embodiment of the present invention; Figure 13 for Figure 12 Enlarged view at point F; Figure 14 This is a schematic diagram of a second perspective view of a side plate clamping module according to an embodiment of the present invention; Figure 15 This is a schematic diagram of a perspective view of the pole clamping module according to an embodiment of the present invention. Detailed Implementation

[0016] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, further illustrating the present invention.

[0017] First, combine Figures 1-15 The present invention describes a precision positioning multi-compatible module side seam welding fixture, which is used in the side seam welding process of battery modules and has a wide range of applications.

[0018] like Figures 1-15 As shown, the precision positioning multi-compatible module side seam welding fixture of this embodiment of the invention includes: Positioner 1, a first rotating frame 11 is provided on positioner 1, and positioner 1 can drive the first rotating frame 11 to rotate; Support module 2, which is connected to the first rotating frame 11, is used to support the battery module 7 to be welded; A pair of side plate clamping modules 3 are connected to the first rotating frame 11 and are arranged on both sides of the support module 2; A pair of end plate clamping modules 5 are connected to the first rotating frame 11 and are set at the other two ends of the support module 2; The pole clamping module 6 is connected to the first rotating frame 11 and is positioned above the support module 2; The support module 2, a pair of side plate clamping modules 3, the end plate clamping module 5, and the pole column clamping module 6 can rotate with the first rotating frame 11.

[0019] Furthermore, such as Figures 7-8 As shown, in this embodiment, the support module 2 includes: a pair of first support plates 21 and a first positioning plate 22; A pair of first support plates 21 are arranged in parallel on the first rotating frame 11 and are fixedly connected to the first rotating frame 11; The first positioning plate 22 is connected to a pair of first support plates 21 at both ends. The first positioning plate 22 is provided with a number of first positioning posts 23, which are used for the initial positioning of the battery module 7.

[0020] Furthermore, such as Figure 4 , 6 As shown in ~7, in this embodiment, the end plate clamping module 5 includes: a first end plate clamping mechanism 51, a second end plate clamping mechanism 52, and a first spacing adjustment mechanism 53; The first end plate pressing mechanism 51 is set at one end of the support module 2, and can press the end plate onto the battery module 7 from the side. The second end plate clamping mechanism 52 and the first end plate clamping mechanism 51 are arranged adjacent to each other and can clamp the end plate 71 from above. The output end of the first spacing adjustment mechanism 53 is connected to the first end plate pressing mechanism 51 and the second end plate pressing mechanism 52 respectively, and can drive the first end plate pressing mechanism 51 and the second end plate pressing mechanism 52 to reciprocate linear motion.

[0021] Furthermore, such as Figure 4 , 6 As shown in Figures 7, 9, and 10, in this embodiment, the first spacing adjustment mechanism 53 includes: a first spacing adjustment motor 531, a pair of first spacing adjustment slide rails 532, and a first spacing adjustment frame 533; the pair of first spacing adjustment slide rails 532 are disposed on the first rotating frame 11, and the first spacing adjustment frame 533 is slidably connected to the pair of first spacing adjustment slide rails 532; the first spacing adjustment motor 531 is disposed on the first rotating frame 11, and its output end is connected to the first spacing adjustment frame 533, which can drive the first spacing adjustment frame 533 to move along the first spacing adjustment slide rails 532, for adapting to battery modules 7 of different sizes; The first end plate clamping mechanism 51 includes: a first end plate clamping cylinder 511 and a first end plate clamping plate 512; the first end plate clamping cylinder 511 is connected to the first spacing adjustment frame 533, and its output end is connected to the first end plate clamping plate 512, which can drive the first end plate clamping plate 512 to reciprocate, for clamping the end plate 71. The second end plate clamping mechanism 52 includes: a second end plate clamping cylinder 521, a lever assembly 522, and a second end plate clamping plate 523; one end of the lever assembly 522 is movably connected to the output end of the second end plate clamping cylinder 521, the other end is connected to the second end plate clamping plate 523, and the middle part is hinged to the first spacing adjustment frame 533; the second end plate clamping cylinder 521 is mounted on the first spacing adjustment frame 533, and can drive the lever assembly 522 to move up and down to drive the second end plate clamping plate 523 to move, thereby clamping or releasing the end plate of the battery module 7.

[0022] Furthermore, such as Figure 3 , 12 As shown in ~14, in this embodiment, the side panel pressing module 3 includes: a first pressing plate group 31, a plurality of side panel pressing mechanisms 32, a pair of second spacing adjustment mechanisms 33 and a plurality of first dust suction mechanisms 34. A pair of second spacing adjustment mechanisms 33 are disposed at both ends of the first rotating frame 11, and their output ends are respectively connected to both ends of the first pressing plate group 31, which can drive the first pressing plate group 31 to move towards the side plate 72 of the battery module 7 and press the side plate 72. Several side plate pressing mechanisms 32 are arranged on the first pressing plate group 31, which can press the folded edges of the side plate 72 of the battery module 7; A number of suction ports of the first suction mechanism 34 are provided on the first pressing plate group 31 for suctioning away welding slag.

[0023] Furthermore, such as Figure 3 , 12 As shown in ~14, in this embodiment, the principle of the second spacing adjustment mechanism 33 is the same as that of the first spacing adjustment mechanism 53, including: a pair of second spacing adjustment motors 331, two sets of second spacing adjustment slide rails 332, and a pair of second spacing adjustment frames 333; the two sets of second spacing adjustment slide rails 332 are respectively arranged on the first rotating frame 11, and the pair of second spacing adjustment frames 333 correspond one-to-one with the two sets of second spacing adjustment slide rails 332 and are slidably connected; the pair of second spacing adjustment motors 331 correspond one-to-one with the pair of second spacing adjustment frames 333 and are arranged on the first rotating frame 11, and their output ends are connected to the corresponding second spacing adjustment frames 333, which can drive the second spacing adjustment frames 333 to move along the corresponding second spacing adjustment slide rails 332; the two ends of the first pressing plate group 31 are respectively connected to the pair of second spacing adjustment frames 333 and can reciprocate with the pair of second spacing adjustment frames 333.

[0024] Furthermore, such as Figure 3 , 12 As shown in ~14, in this embodiment, the first pressing plate group 31 is provided with a plurality of dust suction windows 311 and limiting grooves 312. The first vacuuming mechanism 34 includes: a vacuuming cylinder, a vacuuming nozzle, and a vacuuming hose; The vacuum cylinder is mounted on the first rotating frame 11, and the vacuum nozzle is mounted inside the vacuum window 311. The vacuum nozzle is connected to the vacuum cylinder via a vacuum pipe.

[0025] Furthermore, such as Figure 3 , 12 As shown in ~14, this embodiment also includes: a first copper nozzle driving mechanism 35, which is connected to the first pressing plate group 31. Its output end is connected to the suction copper nozzle, which can drive the suction copper nozzle to move within the suction window 311 so as to better remove welding slag.

[0026] Furthermore, such as Figure 3 , 12 As shown in ~14, in this embodiment, the side plate pressing mechanism 32 includes: a first side plate pressing block 321 and a first pressing block driving cylinder 322; The first pressure block drive cylinder 322 is connected to the first pressure plate group 31, and its output end is connected to the first side plate pressure block 321, which can drive the first side plate pressure block 321 to move up and down. The first side plate pressing block 321 cooperates with the limiting groove 312 to press the folded edge of the side plate 72 of the battery module 7.

[0027] Furthermore, such as Figure 2 As shown, in this embodiment, it also includes: a plurality of second vacuuming mechanisms 36 and a plurality of second copper nozzle driving mechanisms 37; A plurality of second copper nozzle drive mechanisms 37 correspond one-to-one with a plurality of second dust collection mechanisms 36. The plurality of second copper nozzle drive mechanisms 37 are respectively set at both ends of the first rotating frame 11 and connected to the positioner 1. Their output ends are connected to the dust collection copper nozzles of the second dust collection mechanism 36, which can drive the dust collection copper nozzles of the second dust collection mechanism 36 to reciprocate. The suction cylinder of the second suction mechanism 36 is mounted on the positioner 1.

[0028] Preferably, in this embodiment, the second vacuuming mechanism 36 is similar to the first vacuuming mechanism 34.

[0029] Furthermore, such as Figure 1 , 15 As shown, in this embodiment, the pole clamping module 6 includes: a pole clamping fixing frame 61, at least one pole clamping cylinder 62, a plurality of clamping rollers 63, a roller fixing frame 64, and a pair of lateral adjustment cylinders 65; A pair of lateral adjustment cylinders 65 are disposed at both ends of the first rotating frame 11 and connected to the first rotating frame 11. The output ends of the pair of lateral adjustment cylinders 65 are respectively connected to the pole column clamping and fixing frame 61, which can drive the pole column clamping and fixing frame 61 to reciprocate. The pole clamping cylinder 62 is mounted on the pole clamping fixing frame 61, and its output end is connected to the roller fixing frame 64, which can drive the roller fixing frame 64 to move up and down. Several clamping rollers 63 are respectively hinged to roller fixing brackets 64 for clamping the battery module 7.

[0030] Working principle: A pair of horizontal adjustment cylinders 65 drive the terminal post clamping and fixing frame 61 to move the support module 2 in the horizontal direction; the robot arm grasps the battery module 7 and places it on the first support plate 21, so that the first positioning post 23 is inserted into the corresponding positioning hole on the battery module 7 for initial positioning; the robot arm places a pair of end plates 71 at both ends of the battery module 7 respectively; the first spacing adjustment mechanism 53 drives the first end plate clamping mechanism 51 and the second end plate clamping mechanism 52 to move the battery module 7 to the designated position, and the first end plate clamping cylinder 511 drives the first end plate clamping plate 512 to clamp the end plate 71 of the battery module 7; then, the second end plate clamping cylinder 521 drives the second end plate clamping plate 523 to press the end plate 71 downward; the robot arm grasps the side plate 72 and places it on the first end plate clamping and fixing frame 61. On both sides of the battery module 7, the second spacing adjustment mechanism 33 drives the first pressing plate group 31 to approach the side plate, so that the folded edge of the side plate 72 enters the limiting groove 312. Then, the first pressing block driving cylinder 322 drives the first side plate pressing block 321 to move downward and cooperate with the bottom surface of the limiting groove 312 to clamp the folded edge of the side plate 72. The robot arm retracts, and the second spacing adjustment mechanism 33 drives the first pressing plate group 31 to approach the battery module 7, so that the side plate 72 moves to the designated position. Then, the horizontal adjustment cylinder 65 drives the terminal post pressing and fixing bracket 61 to approach the battery module 7 in the horizontal direction and moves the terminal post pressing and fixing bracket 61 to the designated position above the battery module 7. The terminal post pressing cylinder 62 drives the roller fixing bracket 64 to move downward, so that the pressing roller 63 presses the battery module 7.

[0031] Then, the positioner 1 drives the first rotating frame 11 to rotate 90° clockwise, and the welding robot performs welding. After welding is completed, the first dust suction mechanism 34 starts dust suction, and at the same time, the second copper nozzle drive mechanism 37 drives the dust suction copper nozzle of the second dust suction mechanism 36 to extend and perform dust suction.

[0032] Then, the second copper nozzle drive mechanism 37 drives the suction copper nozzle of the second suction mechanism 36 to retract, and the positioner 1 drives the first rotating frame 11 to rotate 180°, so that the welding robot can weld the other side of the battery module 7. After the welding is completed, the first suction mechanism 34 starts to perform suction work, and at the same time, the second copper nozzle drive mechanism 37 drives the suction copper nozzle of the second suction mechanism 36 to extend and perform suction work.

[0033] Above, refer to Figures 1-15The present invention describes a precision positioning multi-compatible module side seam welding fixture, which eliminates the need for two positioning welds, resulting in a more stable and precise welding process; it enables automatic type change without manual intervention, making it convenient and fast; it is compatible with different products and meets different welding requirements; and it greatly improves welding efficiency and welding quality.

[0034] It should be noted that, in this specification, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes that element.

[0035] Although the present invention has been described in detail through the preferred embodiments above, it should be understood that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions to the present invention will be apparent to those skilled in the art after reading the above description. Therefore, the scope of protection of the present invention should be defined by the appended claims.

Claims

1. A precision positioning welding fixture for side seams of multi-compatible modules, characterized in that, Include: A positioner, wherein a first rotating frame is provided on the positioner and the positioner can drive the first rotating frame to rotate; A support module, which is connected to the first rotating frame, is used to support the battery module to be welded; A pair of side plate clamping modules, which are connected to the first rotating frame and are disposed on both sides of the support module; A pair of end plate clamping modules, which are connected to the first rotating frame and are disposed at the other two ends of the support module; An electrode clamping module is connected to the first rotating frame and is disposed above the support module; The support module, the pair of side plate clamping modules, the end plate clamping module, and the pole column clamping module can rotate with the first rotating frame; The end plate clamping module includes: a first end plate clamping mechanism, a second end plate clamping mechanism, and a first spacing adjustment mechanism; The first end plate clamping mechanism is located at one end of the support module and can clamp the end plate onto the battery module from the side. The second end plate clamping mechanism is arranged adjacent to the first end plate clamping mechanism and can clamp the end plate from above. The output end of the first spacing adjustment mechanism is connected to the first end plate pressing mechanism and the second end plate pressing mechanism respectively, and can drive the first end plate pressing mechanism and the second end plate pressing mechanism to reciprocate linear motion; The first spacing adjustment mechanism includes: a first spacing adjustment motor, a pair of first spacing adjustment slide rails, and a first spacing adjustment frame; the pair of first spacing adjustment slide rails are disposed on the first rotating frame, and the first spacing adjustment frame is slidably connected to the pair of first spacing adjustment slide rails; the first spacing adjustment motor is disposed on the first rotating frame, and its output end is connected to the first spacing adjustment frame, which can drive the first spacing adjustment frame to move along the first spacing adjustment slide rails; The first end plate clamping mechanism includes: a first end plate clamping cylinder and a first end plate clamping plate; the first end plate clamping cylinder is connected to the first spacing adjustment frame, and its output end is connected to the first end plate clamping plate, which can drive the first end plate clamping plate to reciprocate. The second end plate clamping mechanism includes: a second end plate clamping cylinder, a lever assembly, and a second end plate clamping plate; one end of the lever assembly is movably connected to the output end of the second end plate clamping cylinder, the other end is connected to the second end plate clamping plate, and the middle part is hinged to the first spacing adjustment frame; the second end plate clamping cylinder is disposed on the first spacing adjustment frame and can drive the second end plate clamping plate to clamp the end plate of the battery module through the lever assembly; The side panel pressing module includes: a first pressing plate group, several side panel pressing mechanisms, a pair of second spacing adjustment mechanisms, and several first dust collection mechanisms; The pair of second spacing adjustment mechanisms are located at both ends of the first rotating frame, and their output ends are respectively connected to both ends of the first pressing plate group, which can drive the first pressing plate group to move toward the side plate of the battery module and press the side plate. The plurality of side plate pressing mechanisms are disposed on the first pressing plate group and can press the folded edges of the side plates of the battery module; The suction ports of the plurality of first dust collection mechanisms are located on the first pressing plate group and are used to remove welding slag.

2. The precision positioning multi-compatible module side seam welding fixture as described in claim 1, characterized in that, The support module includes: a pair of first support plates and a first positioning plate; The pair of first support plates are arranged in parallel on the first rotating frame and are fixedly connected to the first rotating frame; The first positioning plate is connected to the pair of first support plates at both ends, and a plurality of first positioning posts are provided on the first positioning plate.

3. The precision positioning multi-compatible module side seam welding fixture as described in claim 1, characterized in that, The first clamping plate assembly is provided with several dust suction windows and limiting grooves; The first vacuuming mechanism includes: a vacuuming cylinder, a vacuuming nozzle, and a vacuuming hose; The vacuum cylinder is mounted on the first rotating frame, the vacuum nozzle is mounted inside the vacuum window, and the vacuum nozzle is connected to the vacuum cylinder via the vacuum pipe.

4. The precision positioning multi-compatible module side seam welding fixture as described in claim 3, characterized in that, It also includes: a first copper nozzle driving mechanism, which is connected to the first pressing plate group, and its output end is connected to the suction copper nozzle, which can drive the suction copper nozzle to move within the suction window.

5. The precision positioning multi-compatible module side seam welding fixture as described in claim 3, characterized in that, The side plate pressing mechanism includes: a first side plate pressing block and a first pressing block driving cylinder; The first pressure block driving cylinder is connected to the first pressing plate group, and its output end is connected to the first side plate pressure block, which can drive the first side plate pressure block to move up and down. The first side plate pressing block cooperates with the limiting groove to press the folded edge of the side plate of the battery module.

6. The precision positioning multi-compatible module side seam welding fixture as described in claim 1, characterized in that, It also includes: several second vacuuming mechanisms and several second copper nozzle driving mechanisms; The plurality of second copper nozzle driving mechanisms correspond one-to-one with the plurality of second vacuuming mechanisms. The plurality of second copper nozzle driving mechanisms are respectively disposed at both ends of the first rotating frame and connected to the positioner. Their output ends are connected to the vacuuming copper nozzles of the second vacuuming mechanism, which can drive the vacuuming copper nozzles of the second vacuuming mechanism to reciprocate. The suction cylinder of the second suction mechanism is mounted on the positioner.

7. The precision positioning multi-compatible module side seam welding fixture as described in claim 1, characterized in that, The pole clamping module includes: a pole clamping fixing frame, at least one pole clamping cylinder, several clamping rollers, a roller fixing frame, and a pair of lateral adjustment cylinders; The pair of lateral adjustment cylinders are disposed at both ends of the first rotating frame and connected to the first rotating frame. The output ends of the pair of lateral adjustment cylinders are respectively connected to the pole column clamping and fixing frame, which can drive the pole column clamping and fixing frame to reciprocate. The pole clamping cylinder is mounted on the pole clamping fixing frame, and its output end is connected to the roller fixing frame, which can drive the roller fixing frame to move up and down. The plurality of pressing rollers are respectively hinged to the roller fixing frame for pressing the battery module.

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