A new energy automobile battery welding device

Abstract

The application relates to the technical field of automobile battery welding, in particular to a new energy automobile battery welding device; the new energy automobile battery welding device comprises a workbench, symmetrical guide rails are installed on the workbench, a portal frame is slidably installed on the guide rails, and a driving assembly is installed on the workbench; a control box is fixedly installed at one corner of the top end of the workbench; a middle pad is fixedly installed at the middle part of the workbench, and a supporting table plate is installed on the middle pad; a tool holder is installed on the supporting table plate, and a pressing and fixing assembly is installed on the tool holder; in the application, the pressing and fixing assembly is arranged on the tool holder, can be quickly assembled when the battery is welded, and is positioned by using a fixed-distance assembly and a clamping assembly; then, double-side synchronous welding is carried out by using the symmetrical welding mechanisms of the portal frame, so that the quality and efficiency of automobile battery welding are improved.

Description

Technical Field

[0001] This invention relates to the field of automotive battery welding technology, and more particularly to a welding equipment for new energy vehicle batteries. Background Technology

[0002] As a core component of new energy vehicles, the power battery is currently widely used in automobiles by welding multiple lithium battery arrays together to meet the demand for high energy density. However, traditional battery welding equipment still has significant shortcomings in its process, which restricts the improvement of production efficiency and product quality.

[0003] In the existing technology, the welding of lithium battery packs in the manufacturing process of new energy is mostly carried out using a single-sided welding process. Specifically, operators need to clamp the individual battery cells one by one on the tooling frame and perform single-sided welding manually or with semi-automatic equipment. After completing the welding of one side, the battery pack needs to be disassembled, flipped and repositioned, and then clamped again to perform welding on the other side. This step-by-step operation is not only time-consuming and labor-intensive, but also prone to positioning errors due to repeated clamping, resulting in problems such as welding position deviation, incomplete welding or missing welding, which seriously affects the consistency and reliability of the battery pack. In addition, the clamping mechanism of traditional tooling frames has limited adaptability and is difficult to adapt to the rapid changeover requirements of different battery specifications, further reducing the flexibility of the production line.

[0004] Therefore, it is necessary to provide a new energy vehicle battery welding equipment to solve the above-mentioned technical problems. Summary of the Invention

[0005] To address the aforementioned technical problems, this invention provides a welding device for new energy vehicle batteries.

[0006] The new energy vehicle battery welding equipment provided by the present invention includes a workbench, on which guide rails are symmetrically installed, and a gantry frame is slidably connected on the guide rails. A drive assembly for driving the gantry frame to move is installed on the workbench, and a control box is fixedly installed at one corner of the top of the workbench.

[0007] Also includes:

[0008] A central pad is fixedly installed in the middle of the workbench, and a support plate is mounted on the central pad. A fixture for array-clamping batteries and a clamping assembly for welding positioning are fixedly mounted on the support plate. A clamping assembly for securing the batteries is mounted on the fixture. The clamping assembly includes two sets of lead screws, symmetrically arranged on the fixture and rotatably connected to it. A servo motor for driving the lead screws is mounted on the fixture and electrically connected to a control box. The two lead screws... A pressure plate is installed on a common thread. Several arc-shaped plates that fit the battery are evenly installed on the bottom end of the pressure plate. A vertical groove that slides with the pressure plate is opened on one side of the tooling frame. Several slots are evenly opened on the pressure plate. The clamping assembly also includes a limiting end plate. The limiting end plate is fixedly installed on one side of the tooling frame. Two sets of electric rods are symmetrically installed on the limiting end plate. Push rods are fixedly installed on the telescopic ends of the two sets of electric rods. A limiting piece is fixedly installed on the bottom end of the push rod. A limiting groove that slides with the limiting piece is opened on the bottom horizontal plate of the tooling frame.

[0009] The intermediate pad is also equipped with a spacing assembly for clamping and separating the battery array. The spacing assembly includes two sets of electric rods. The two sets of electric rods are symmetrically installed on the intermediate pad and electrically connected to the control box. The telescopic ends of the two sets of electric rods are fixedly installed with a connecting plate. Several spacing rods are evenly installed on both sides of the connecting plate. The spacing between the several spacing rods is adapted to the diameter of the battery.

[0010] The gantry is equipped with a welding mechanism for battery welding, and the welding mechanism has two sets.

[0011] Preferably, the drive assembly includes a lead screw, which has two sets. The two sets of lead screws are rotatably mounted on the worktable, and each set of lead screws is threaded with a transmission plate. The transmission plate is fixedly connected to the inner side wall of the gantry frame. The worktable is equipped with two sets of servo motors that drive the two sets of lead screws to rotate, and the two sets of servo motors are electrically connected to the control box.

[0012] Preferably, the clamping assembly includes support rods, and there are two sets of support rods. The two sets of support rods are symmetrically installed on the support platform, and both ends of the two sets of support rods are slidably mounted with sliding frames. Several limiting strips are evenly installed on the sliding frames. A bidirectional threaded rod is rotatably installed on the support platform. The sliding frames have threaded through holes that are threadedly connected to the bidirectional threaded rod. A servo motor three for driving the bidirectional threaded rod to rotate is installed on the worktable. The servo motor three is electrically connected to the control box.

[0013] Preferably, a stepped groove is formed on the inner side of a plurality of the limiting strips, the width of the frontmost groove of the stepped groove is equal to the diameter of the battery, and a welding groove is formed on the limiting strip that communicates with the stepped groove.

[0014] Preferably, the welding mechanism includes a lead screw three, which is rotatably mounted in an installation slot in the gantry frame. A servo motor four for driving the lead screw three to rotate is fixedly mounted on the top of the gantry frame. A lifting plate is threaded onto the lead screw three, and an electric rod three is fixedly mounted on the lifting plate. The lifting plate is slidably engaged with the installation slot. The welding mechanism also includes a plasma arc welding machine, which is fixedly mounted on the top of the gantry frame. The plasma arc welding machine is electrically connected to a plasma arc welding gun head, which is fixedly connected to the telescopic end of the electric rod three. The electric rod three and the plasma arc welding machine are electrically connected to a control box.

[0015] Preferably, the top plate of the gantry frame is provided with a cable passage for the electrical connection of the plasma arc welding machine and the plasma arc welding gun head, and limit hangers are symmetrically installed at the bottom of the top plate of the gantry frame.

[0016] Compared with related technologies, the new energy vehicle battery welding equipment provided by this invention has the following beneficial effects:

[0017] 1. In this invention, by setting a clamping assembly on the tooling frame, the clamping assembly utilizes the cooperation of a second lead screw, a second servo motor, a pressure plate, an arc plate, a vertical groove, a slot, a limiting end plate, a first electric rod, a push rod, a limiting piece, and a limiting groove to facilitate the clamping of batteries of different specifications and improve the adaptability range of battery welding.

[0018] 2. In this invention, by symmetrically setting welding mechanisms on the gantry frame, after the tooling frame is precisely positioned by the spacing component and the docking component, double-sided welding can be carried out simultaneously under the drive of the drive component, which greatly improves the overall welding efficiency. Attached Figure Description

[0019] Figure 1 A schematic diagram of a preferred embodiment of the new energy vehicle battery welding equipment provided by the present invention;

[0020] Figure 2 A schematic diagram of the structure of the new energy vehicle battery welding equipment provided by the present invention from another perspective;

[0021] Figure 3 A schematic diagram of a support platform provided by the present invention, on which a tooling frame and a clamping assembly are mounted;

[0022] Figure 4 A schematic diagram of a support platform on which a clamping assembly is mounted, provided by the present invention;

[0023] Figure 5 A schematic diagram of a gantry frame mounted on a workbench provided by the present invention;

[0024] Figure 6 A schematic diagram of a welding mechanism installed on a gantry frame provided by the present invention;

[0025] Figure 7 for Figure 3 A magnified view of part A shown;

[0026] Figure 8 for Figure 3 A magnified view of part B shown;

[0027] Figure 9 for Figure 4 A magnified view of part C shown.

[0028] Numbered components in the diagram: 1. Workbench; 2. Guide rail; 3. Gantry frame; 4. Drive assembly; 5. Intermediate pad; 6. Support plate; 7. Tooling frame; 8. Pressure assembly; 9. Spacing assembly; 10. Clamping assembly; 11. Welding mechanism; 12. Control box; 13. Lead screw one; 14. Transmission plate; 15. Servo motor one; 16. Lead screw two; 17. Servo motor two; 18. Pressure plate; 19. Curved plate; 20. Vertical slot; 21. Slot; 22. Limiting end plate; 23. Electric rod one; 24. 25. Push rod; 26. Limiting plate; 27. Limiting groove; 28. Electric rod II; 29. ​​Connecting plate; 30. Spacer rod; 31. Support rod; 32. Sliding frame; 33. Limiting strip; 34. Welding groove; 35. Stepped groove; 36. Bidirectional threaded rod; 37. Servo motor III; 38. Mounting groove; 39. Lead screw III; 40. Servo motor IV; 41. Lifting plate; 42. Electric rod III; 43. Plasma arc welding machine; 44. Plasma arc welding gun head; 45. Wire groove; 46. Limiting hanger. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0030] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0031] Please see Figures 1 to 9 The present invention provides a new energy vehicle battery welding equipment, which includes a workbench 1, a support plate 6, a tooling frame 7, a spacing component 9, a clamping component 10, and a welding mechanism 11.

[0032] The workbench 1 is symmetrically equipped with guide rails 2, and a gantry frame 3 is slidably mounted on the guide rails 2. The workbench 1 is also equipped with a drive assembly 4 for driving the gantry frame 3 to move.

[0033] The drive assembly 4 includes a lead screw 13, which is provided in two sets. The two sets of lead screws 13 are rotatably mounted on the worktable 1, and each set of lead screws 13 is threaded with a transmission plate 14. The transmission plate 14 is fixedly connected to the inner side wall of the gantry frame 3. The worktable 1 is equipped with two sets of servo motors 15 that drive the two sets of lead screws 13 to rotate. The two sets of servo motors 15 are electrically connected to the control box 12.

[0034] A control box 12 is fixedly installed at one corner of the top of the workbench 1. A middle pad 5 is fixedly installed in the middle of the workbench 1, and a support plate 6 is installed on the middle pad 5. A tooling frame 7 for array clamping of batteries and a clamping assembly 10 for welding positioning are fixedly installed on the support plate 6. A clamping assembly 8 for pressing the batteries is installed on the tooling frame 7. A spacing assembly 9 for battery array clamping and separation is also installed on the middle pad 5. A welding mechanism 11 for battery welding is installed on the gantry frame 3, and the welding mechanism 11 has two sets.

[0035] In an embodiment of the present invention, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 7 as well as Figure 8 The clamping assembly 8 includes a second lead screw 16, which is provided in two sets. The two sets of the second lead screw 16 are symmetrically arranged on the tooling frame 7 and rotatably connected to the tooling frame 7. The tooling frame 7 is equipped with a second servo motor 17 that drives the second lead screw 16 to rotate. The second servo motor 17 is electrically connected to the control box 12. The two second lead screws 16 are threaded together with a pressure plate 18. The bottom end of the pressure plate 18 is evenly equipped with a number of arc-shaped plates 19 that fit with the battery. A vertical groove 20 that slides with the pressure plate 18 is opened on one side of the vertical plate of the tooling frame 7. A number of slots 21 are evenly opened on the pressure plate 18.

[0036] The clamping assembly 8 also includes a limiting end plate 22, which is fixedly installed on one side of the tooling frame 7. Two sets of electric rods 23 are symmetrically installed on the limiting end plate 22, and push rods 24 are fixedly installed on the telescopic ends of the two sets of electric rods 23.

[0037] It should be noted that during use, the batteries to be welded are placed one by one on the fixture 7. The placement is achieved by using the spacing component 9 to position the batteries in adjacent vertical rows. After placement, the servo motor 17 is started to drive the lead screw 16 to rotate. When the lead screw 16 rotates, it drives the pressure plate 18 to move downward until the arc plate 19 presses against the top battery. After pressing, the insulating fiberglass board is inserted between the battery packs in adjacent vertical rows through the slot 21. Then, the electric rod 23 is started to drive the push rod 24 to press and fix the other end of the battery pack. Then, the electrode plates to be welded are placed on the clamping component 10. After the electrode plates are inserted, the clamping component 10 is controlled to clamp the batteries on the fixture 7. After clamping and positioning, the servo motor 15 is started to drive the lead screw 13 to rotate, thereby driving the gantry 3 to move along the guide rail 2 through the transmission plate 14. During the movement, it first moves to the battery at the corner for zero-point positioning. After positioning, it is quickly welded according to the set movement trajectory. Welding is performed on both sides simultaneously, which greatly improves the welding efficiency.

[0038] It is worth noting that: a limiting piece 25 is fixedly installed at the bottom end of the push rod 24, and a limiting groove 26 is provided on the bottom horizontal plate of the tooling frame 7 to slide with the limiting piece 25. In this way, when the push rod 24 moves, the sliding cooperation between the limiting piece 25 and the limiting groove 26 improves the moving stability of the push rod 24.

[0039] In an embodiment of the present invention, please refer to Figure 1 , Figure 2 as well as Figure 3 The distance fixing component 9 includes two sets of electric rods 27. The two sets of electric rods 27 are symmetrically installed on the intermediate pad 5 and electrically connected to the control box 12. The telescopic ends of the two sets of electric rods 27 are fixedly installed with a connecting plate 28. Several distance fixing rods 29 are evenly installed on both sides of the connecting plate 28. The spacing between the several distance fixing rods 29 is adapted to the diameter of the battery.

[0040] It should be noted that when using the spacing assembly 9, during welding assembly, the electric rod 27 is activated to drive the connecting plate 28 to move downward, thereby inserting the spacing rod 29 between the tooling frame 7 and the pressure plate 18. Then, when filling the battery, the adjacent vertical battery packs are spaced apart by the spacing rod 29 to facilitate the insertion of the insulating fiberglass board. When the battery is welded and the entire battery pack needs to be removed, the electric rod 27 is controlled to drive the connecting plate 28 to move upward, thereby pulling the spacing rod 29 out of the pressure plate 18, so that the welded battery as a whole can be removed from the tooling frame 7.

[0041] It should also be noted that, in order to make the positioning of the spacer rod 29 more stable, an insertion hole is provided on the bottom plate of the tooling frame 7 to engage with the spacer rod 29. In this way, when using the spacer rod 29 for separation and positioning, the spacer rod 29 can be inserted into the bottom insertion hole, thereby improving the separation support strength of the spacer rod 29.

[0042] In this embodiment: In order to facilitate the installation of the insulating fiberglass board, the top horizontal plate of the connecting plate 28 and the tooling frame 7 are both provided with through slots to facilitate the insertion of the insulating fiberglass board into the slot 21.

[0043] In an embodiment of the present invention, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 9 The clamping assembly 10 includes a support rod 30, which is provided in two sets. The two sets of support rods 30 are symmetrically installed on the support platform 6, and both ends of the two sets of support rods 30 are slidably mounted with a sliding frame 31. Several limiting strips 32 are evenly installed on the sliding frame 31. A bidirectional threaded rod 35 is rotatably installed on the support platform 6. The sliding frame 31 has a threaded through hole that is threadedly connected to the bidirectional threaded rod 35. A servo motor 36 for driving the bidirectional threaded rod 35 to rotate is installed on the worktable 1. The servo motor 36 is electrically connected to the control box 12.

[0044] Among them, a number of the limiting strips 32 have stepped grooves 34 on their inner sides. The width of the frontmost groove of the stepped groove 34 is equal to the diameter of the battery. The limiting strips 32 have welding grooves 33 that communicate with the stepped grooves 34.

[0045] It should be noted that when using the clamping assembly 10, after clamping the battery array onto the tooling frame 7 using the clamping assembly 8 and the spacing assembly 9, the electrode plates for welding are placed in the narrow slot of the stepped groove 34. After they are placed in one by one, the servo motor 36 is started to drive the bidirectional threaded rod 35 to rotate. When rotating, the sliding frames 31 at both ends are driven to move relative to each other until they are moved to the step groove 34 to align the batteries, thereby completing the centering and positioning. After positioning, welding is performed using the welding groove 33. When the battery pack needs to be removed after welding, the servo motor 36 is controlled to drive the bidirectional threaded rod 35 to reverse.

[0046] In an embodiment of the present invention, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6The welding mechanism 11 includes a lead screw 38, which is rotatably installed in the mounting slot 37 of the gantry frame 3. A servo motor 39 for driving the lead screw 38 to rotate is fixedly installed at the top of the gantry frame 3. A lifting plate 40 is threaded onto the lead screw 38. An electric rod 41 is fixedly installed on the lifting plate 40. The lifting plate 40 is slidably engaged with the mounting slot 37. The welding mechanism 11 also includes a plasma arc welding machine 42, which is fixedly installed at the top of the gantry frame 3. The plasma arc welding machine 42 is electrically connected to a plasma arc welding gun head 43. The plasma arc welding gun head 43 is fixedly connected to the telescopic end of the electric rod 41. The electric rod 41 and the plasma arc welding machine 42 are electrically connected to the control box 12.

[0047] It should be noted that when the welding mechanism 11 is in use, when the gantry 3 moves to the welding position, the plasma arc welding machine 42 and the electric rod 41 are started. The electric rod 41 drives the plasma arc welding gun head 43 to weld the electrode sheet and the battery electrode. The welding electric rod 41 retracts and resets, and then controls the servo motor 39 to drive the lead screw 38 to rotate, which in turn drives the lifting plate 40 to slide along the mounting groove 37 and move to the next vertical welding station. After the entire vertical battery pack is welded, it moves horizontally to perform the next vertical welding operation.

[0048] In this embodiment: the top plate of the gantry 3 is provided with a cable passage 44 for the cable electrically connected to the plasma arc welding machine 42 and the plasma arc welding gun head 43. The bottom of the top plate of the gantry 3 is symmetrically equipped with limit hangers 45. In this way, when the lifting plate 40 moves the plasma arc welding gun head 43, the cable passage 44 and the limit hangers 45 limit the cable electrically connected to the plasma arc welding gun head 43 and the plasma arc welding machine 42, so as to avoid the cable interfering with the tooling frame 7 during the movement and affecting the welding.

[0049] The working principle of the new energy vehicle battery welding equipment provided by this invention is as follows:

[0050] In use, the batteries to be welded are placed one by one on the fixture 7. During placement, the electric lever 27 is activated to drive the connecting plate 28 downward, thereby inserting the spacer 29 between the fixture 7 and the pressure plate 18. When loading batteries, adjacent vertical battery packs are spaced apart by the spacer 29. Then, the servo motor 17 is activated to drive the lead screw 16 to rotate. When the lead screw 16 rotates, it drives the pressure plate 18 to move downward until the arc plate 19 presses against the top battery. After pressing, the insulating fiberglass board is inserted between adjacent vertical battery packs through the slot 21. Then, the electric lever 23 is activated to drive the push rod 24 to press and fix the other end of the battery pack. The electrode plates for welding are placed in the narrow slot of the stepped groove 34. After they are placed one by one, the servo motor 36 is started to drive the bidirectional threaded rod 35 to rotate. When rotating, the sliding brackets 31 at both ends are driven to move relative to each other until they are moved to the step groove 34 to connect the batteries, thereby completing the centering and positioning. After positioning, welding is performed using the welding groove 33. After clamping and positioning, the servo motor 15 is started to drive the lead screw 13 to rotate, thereby driving the gantry 3 to move along the guide rail 2 through the transmission plate 14. When moving, it first moves to the battery at the corner for zero-point positioning. After positioning, it performs rapid welding according to the set movement trajectory. Welding is performed simultaneously on both sides, which greatly improves welding efficiency.

[0051] Specifically, when the welding mechanism 11 is in use, when the gantry 3 moves to the welding position, the plasma arc welding machine 42 and the electric rod 41 are started. The electric rod 41 drives the plasma arc welding gun head 43 to weld the electrode sheet and the battery electrode. The welding electric rod 41 retracts and resets, and then controls the servo motor 39 to drive the lead screw 38 to rotate, thereby driving the lifting plate 40 to slide along the mounting groove 37 and move to the next vertical welding station. After the entire vertical battery pack is welded, it moves horizontally to perform the next vertical welding operation.

[0052] When the battery needs to be removed after welding, control the servo motor 36 to drive the bidirectional threaded rod 35 to reverse, loosening the clamping of the battery by the limit plate 32. Then control the electric rod 27 to drive the connecting plate 28 to move upward, thereby pulling the spacer rod 29 out of the pressure plate 18. Then start the servo motor 217 to drive the lead screw 216 to reverse, driving the pressure plate 18 to move upward. Then control the electric rod 23 to retract, releasing the side pressure of the push rod 24. Then the entire welded battery can be removed from the tooling frame 7.

[0053] The circuits and controls involved in this invention are all existing technologies, and will not be described in detail here.

[0054] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A new energy vehicle battery welding equipment, comprising a workbench (1), on which guide rails (2) are symmetrically installed, on which a gantry frame (3) is slidably connected, and on which a drive assembly (4) for driving the gantry frame (3) to move is installed, and a control box (12) is fixedly installed at one corner of the top of the workbench (1). Its features are, Also includes: A central pad (5) is fixedly installed in the middle of the workbench (1), and a support plate (6) is installed on the central pad (5). A fixture frame (7) for array clamping of batteries and a clamping assembly (10) for welding positioning are fixedly installed on the support plate (6). A clamping assembly (8) for clamping batteries is installed on the fixture frame (7). The clamping assembly (8) includes a second lead screw (16). There are two sets of the second lead screw (16). The two sets of the second lead screw (16) are symmetrically arranged on the fixture frame (7) and rotatably connected to the fixture frame (7). A second servo motor (17) for driving the second lead screw (16) to rotate is installed on the fixture frame (7). The second servo motor (17) is electrically connected to the control box (12). The two second lead screws (16) have a common thread. The fixture (7) is equipped with a pressure plate (18), and a number of arc-shaped plates (19) that fit the battery are evenly installed at the bottom end of the pressure plate (18). A vertical groove (20) that slides with the pressure plate (18) is opened on one side of the fixture (7). A number of slots (21) are evenly opened on the pressure plate (18). The clamping assembly (8) also includes a limiting end plate (22). The limiting end plate (22) is fixedly installed on one side of the fixture (7). Two sets of electric rods (23) are symmetrically installed on the limiting end plate (22). Push rods (24) are fixedly installed at the telescopic ends of the two sets of electric rods (23). A limiting piece (25) is fixedly installed at the bottom end of the push rod (24). A limiting groove (26) that slides with the limiting piece (25) is opened on the bottom horizontal plate of the fixture (7). The intermediate pad (5) is also equipped with a spacing component (9) for clamping and separating the battery array. The spacing component (9) includes two electric rods (27). There are two sets of electric rods (27). The two sets of electric rods (27) are symmetrically installed on the intermediate pad (5) and electrically connected to the control box (12). The telescopic ends of the two sets of electric rods (27) are fixedly installed with a connecting plate (28). Several spacing rods (29) are evenly installed on both sides of the connecting plate (28). The distance between two adjacent spacing rods (29) on each side is adapted to the diameter of the battery. The gantry (3) is equipped with a welding mechanism (11) for battery welding, and the welding mechanism (11) has two sets.

2. The new energy vehicle battery welding equipment according to claim 1, characterized in that, The drive assembly (4) includes a lead screw (13), which has two sets. The two sets of lead screws (13) are rotatably mounted on the workbench (1), and both sets of lead screws (13) are threaded with transmission plates (14). The transmission plates (14) are fixedly connected to the inner side wall of the gantry frame (3). The workbench (1) is equipped with two sets of servo motors (15) that drive the two sets of lead screws (13) to rotate. The two sets of servo motors (15) are electrically connected to the control box (12).

3. The new energy vehicle battery welding equipment according to claim 1, characterized in that, The clamping assembly (10) includes a support rod (30), which is provided in two sets. The two sets of support rods (30) are symmetrically installed on the support platform (6), and both ends of the two sets of support rods (30) are slidably mounted with a sliding frame (31). Several limiting strips (32) are evenly installed on the sliding frame (31). A bidirectional threaded rod (35) is rotatably installed on the support platform (6). The sliding frame (31) has a threaded through hole that is threadedly connected to the bidirectional threaded rod (35). A servo motor three (36) for driving the bidirectional threaded rod (35) to rotate is installed on the worktable (1). The servo motor three (36) is electrically connected to the control box (12).

4. The new energy vehicle battery welding equipment according to claim 3, characterized in that, A stepped groove (34) is provided on the inner side of several of the limiting strips (32). The width of the front end of the stepped groove (34) is equal to the diameter of the battery. A welding groove (33) is provided on the limiting strip (32) that communicates with the stepped groove (34).

5. The new energy vehicle battery welding equipment according to claim 1, characterized in that, The welding mechanism (11) includes a lead screw three (38), which is rotatably installed in the mounting slot (37) opened in the gantry frame (3). A servo motor four (39) for driving the lead screw three (38) to rotate is fixedly installed at the top of the gantry frame (3). A lifting plate (40) is threaded on the lead screw three (38). An electric rod three (41) is fixedly installed on the lifting plate (40). The lifting plate (40) is slidably engaged with the mounting slot (37). The welding mechanism (11) also includes a plasma arc welding machine (42), which is fixedly installed at the top of the gantry frame (3). The plasma arc welding machine (42) is electrically connected to a plasma arc welding gun head (43). The plasma arc welding gun head (43) is fixedly connected to the telescopic end of the electric rod three (41). The electric rod three (41) and the plasma arc welding machine (42) are electrically connected to the control box (12).

6. The new energy vehicle battery welding equipment according to claim 5, characterized in that, The top plate of the gantry (3) is provided with a cable groove (44) through which the cable for the electrical connection between the plasma arc welding machine (42) and the plasma arc welding gun head (43) passes. Limit hangers (45) are symmetrically installed at the bottom of the top plate of the gantry (3).

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