A battery case welding machine

Abstract

The application discloses a battery shell welding machine and relates to the technical field of battery shell welding.The battery shell welding machine comprises a bottom plate, two first grooves are symmetrically formed in the top end side wall of the bottom plate, and the inner wall of the first groove is fixedly connected with a fixing and moving assembly used for fixing the outer wall of the annular battery shell and driving the annular battery shell to move.The application can change the moving track and welding angle of the third welding gun according to the inclination angle of the inner walls at the two ends of the installation groove formed in the outer wall of the annular battery shell, so that the welding end of the third welding gun is always perpendicular to the inner wall of one end of the corresponding installation groove when the third welding gun is used for welding the inner walls at the two ends of the installation groove, the inner walls at the two ends of the installation groove are conveniently welded, and the staff need not replace the corresponding welding piece according to the inclination angle of the inner walls at the two ends of the installation groove formed in the outer wall of the annular battery shell when different annular battery shells are welded.

Description

Technical Field

[0001] This invention belongs to the field of battery casing welding technology, and particularly relates to a battery casing welding machine. Background Technology

[0002] A toroidal battery (also known as a hollow cylindrical battery or a toroidal lithium-ion battery) is a special type of battery designed for scenarios that require a central channel or axial penetration. Its core value lies in solving the key problems of spatial integration and functional integration. In the production process of a toroidal battery, the toroidal battery needs to be installed inside a battery casing, and then the toroidal battery casing is welded to complete the production steps of the toroidal battery.

[0003] When welding the casing of a toroidal battery, a welding machine is typically used to seal it. However, during the welding process, when welding casings with mounting grooves on their outer walls, the angles of the inner walls at both ends of the mounting groove vary depending on the intended use case. This necessitates replacing the welding parts with the appropriate ones based on the angles of the inner walls at both ends of the mounting groove. This complex process significantly reduces welding efficiency and reliability.

[0004] To address these issues, we propose a battery casing welding machine. Summary of the Invention

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A battery casing welding machine includes a base plate. Two first grooves are symmetrically formed on the top sidewall of the base plate. A fixed moving assembly for fixing and moving the outer wall of an annular battery casing is fixedly connected to the inner wall of the first groove. A bent rod is fixedly connected to the top sidewall of the base plate. An inner wall welding assembly for welding the inner wall of the mounting groove formed on the outer wall of the annular battery casing is fixedly connected to one end of the bent rod. An outer wall welding assembly for welding the outer wall of the annular battery casing is fixedly connected to the top sidewall of the base plate.

[0007] Preferably, the fixed moving assembly includes a first slide rail fixedly connected to the inner wall of a first groove, a first slide plate slidably connected to the top side wall of the first slide rail, a fixing ring fixedly connected to the top side wall of each of the first slide plates, a second slide rail fixedly connected to the inner wall of the fixing ring, a plurality of second slide plates slidably connected to the side wall of the second slide rail, a first electric telescopic rod fixedly connected to the side wall of each of the plurality of second slide plates, and a fixing plate fixedly connected to the telescopic end of each of the first electric telescopic rods.

[0008] Preferably, the outer wall welding assembly includes a mounting ring fixedly connected to the top side wall of the base plate, a third slide rail fixedly connected to the inner wall of the mounting ring, a third sliding plate slidably connected to the side wall of the third slide rail, a second electric telescopic rod fixedly connected to the side wall of the third sliding plate, and a first welding gun fixedly connected to the telescopic end of the second electric telescopic rod.

[0009] Preferably, the inner wall welding assembly includes a third electric telescopic rod fixedly connected to one end of a bent rod, a fixed frame fixedly connected to the telescopic end of the third electric telescopic rod, a first motor fixedly connected to the inner wall of one end of the fixed frame, and a mounting plate rotatably connected to the side wall of one end of the fixed frame. The output end of the first motor passes through the side wall of the fixed frame and is fixedly connected to the side wall of the mounting plate.

[0010] Preferably, a plurality of fourth electric telescopic rods are fixedly connected to the outer wall of the mounting plate, and a first support plate is fixedly connected to the telescopic end of each of the plurality of fourth electric telescopic rods. A fourth slide rail is fixedly connected to the inner wall of each of the first support plates.

[0011] Preferably, a fourth sliding plate is slidably connected to the top side wall of the fourth slide rail, a fifth electric telescopic rod is fixedly connected to the side wall of the fourth sliding plate, a first side plate is fixedly connected to the telescopic end of the fifth electric telescopic rod, and a second welding gun is fixedly connected to the side wall of the first side plate.

[0012] Preferably, a plurality of sixth electric telescopic rods are fixedly connected to the outer wall of the mounting plate, and a second support plate is fixedly connected to the telescopic end of each of the plurality of sixth electric telescopic rods. A fifth slide rail is fixedly connected to the inner wall of each of the second support plates, and a fifth sliding plate is slidably connected to the side wall of each of the fifth slide rails. A locking plate is fixedly connected to the top side wall of each of the fifth sliding plates. A second motor is fixedly connected to one side wall of each locking plate, and a round rod is rotatably connected to the other side wall of each locking plate. The output end of the second motor passes through the side wall of the locking plate and is fixedly connected to one end of the round rod.

[0013] Preferably, a third support plate is fixedly connected to one end of the round rod, a sixth slide rail is fixedly connected to the inner wall of the third support plate, a sixth sliding plate is slidably connected to the side wall of the sixth slide rail, a seventh electric telescopic rod is fixedly connected to one end of the side wall of the sixth sliding plate, a second side plate is fixedly connected to the telescopic end of the seventh electric telescopic rod, and a third welding gun is fixedly connected to the side wall of the second side plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] By incorporating a fixed moving component, an inner wall welding component, and an outer wall welding component, when welding a ring-shaped battery casing with an installation groove on its outer wall is required, a fixing plate secures the inner wall of the installation groove on the outer wall of the ring-shaped battery casing. Then, two separate ring-shaped battery casings are brought into contact, facilitating stable welding. A first welding torch welds the outer wall of the ring-shaped battery casing, while a fourth slide rail drives a second welding torch to weld the bottom inner wall of the installation groove on the outer wall of the ring-shaped battery casing. Simultaneously, the movement trajectory and welding angle of the third welding torch are adjusted according to the inclination angle of the inner walls at both ends of the installation groove on the outer wall of the ring-shaped battery casing. This ensures that the welding end of the third welding torch is always perpendicular to the inner wall of one end of the corresponding installation groove when welding the inner walls at both ends of the installation groove, facilitating welding of the inner walls at both ends of the installation groove. This avoids the need for workers to change welding parts based on the inclination angle of the inner walls at both ends of the installation groove when welding different ring-shaped battery casings, greatly improving the welding efficiency and reliability when welding ring-shaped battery casings. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the structure of the present invention from other angles;

[0018] Figure 3 This is a partial structural diagram of the present invention. Figure 1 ;

[0019] Figure 4 This is a partial structural diagram of the present invention. Figure 2 ;

[0020] Figure 5 This is a partial structural diagram of the present invention. Figure 3 ;

[0021] Figure 6 This is a partial structural diagram of the present invention. Figure 4 ;

[0022] Figure 7 This is a partial structural diagram of the present invention. Figure 5.

[0023] In the diagram: 1. Base plate; 2. First groove; 3. Fixed moving assembly; 31. First slide rail; 32. First sliding plate; 33. Fixing ring; 34. Second slide rail; 35. Second sliding plate; 36. First electric telescopic rod; 37. Fixing plate; 4. Bent rod; 5. Inner wall welding assembly; 51. Third electric telescopic rod; 52. Fixing frame; 53. First motor; 54. Mounting plate; 55. Fourth electric telescopic rod; 56. First support plate; 57. Fourth slide rail; 58. Fourth sliding plate; 59. Fifth electric telescopic rod; 510. First side 511. Second welding gun; 512. Sixth electric telescopic rod; 513. Second support plate; 514. Fifth slide rail; 515. Fifth sliding plate; 516. Clamping plate; 517. Second motor; 518. Round rod; 519. Third support plate; 520. Sixth slide rail; 521. Sixth sliding plate; 522. Seventh electric telescopic rod; 523. Second side plate; 524. Third welding gun; 6. Outer wall welding assembly; 61. Mounting ring; 62. Third slide rail; 63. Third sliding plate; 64. Second electric telescopic rod; 65. First welding gun. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0025] The following electrical components are all electrically connected to the external PLC controller.

[0026] Reference Figures 1-7 A battery casing welding machine includes a base plate 1. Two first grooves 2 are symmetrically formed on the top side wall of the base plate 1. A fixed moving assembly 3 for fixing the outer wall of the annular battery casing and moving the annular battery casing is fixedly connected to the inner wall of the first groove 2. A bent rod 4 is fixedly connected to the top side wall of the base plate 1. An inner wall welding assembly 5 for welding the inner wall of the mounting groove formed on the outer wall of the annular battery casing is fixedly connected to one end of the bent rod 4. An outer wall welding assembly 6 for welding the outer wall of the annular battery casing is fixedly connected to the top side wall of the base plate 1.

[0027] In this embodiment, the fixed moving component 3 includes a first slide rail 31 fixedly connected to the inner wall of the first groove 2, a first slide plate 32 slidably connected to the top side wall of the first slide rail 31, a fixing ring 33 fixedly connected to the top side wall of the first slide plate 32, a second slide rail 34 fixedly connected to the inner wall of the fixing ring 33, a plurality of second slide plates 35 slidably connected to the side wall of the second slide rail 34, a first electric telescopic rod 36 fixedly connected to the side wall of the plurality of second slide plates 35, and a fixing plate 37 fixedly connected to the telescopic end of the first electric telescopic rod 36.

[0028] Specifically, when welding an annular battery casing with an installation groove on its outer wall is required, the mounting plate 37 can be used to fix the inner wall of the installation groove on the outer wall of the annular battery casing, and then the two separate annular battery casings can be controlled to fit together, which facilitates stable welding of the annular battery casing.

[0029] In this embodiment, the outer wall welding assembly 6 includes a mounting ring 61 fixedly connected to the top side wall of the base plate 1, a third slide rail 62 fixedly connected to the inner wall of the mounting ring 61, a third sliding plate 63 slidably connected to the side wall of the third slide rail 62, a second electric telescopic rod 64 fixedly connected to the side wall of the third sliding plate 63, and a first welding gun 65 fixedly connected to the telescopic end of the second electric telescopic rod 64.

[0030] The inner wall welding assembly 5 includes a third electric telescopic rod 51 fixedly connected to one end of the bent rod 4. A fixed frame 52 is fixedly connected to the telescopic end of the third electric telescopic rod 51. A first motor 53 is fixedly connected to the inner wall of one end of the fixed frame 52. A mounting plate 54 is rotatably connected to the side wall of one end of the fixed frame 52. The output end of the first motor 53 passes through the side wall of the fixed frame 52 and is fixedly connected to the side wall of the mounting plate 54.

[0031] Multiple fourth electric telescopic rods 55 are fixedly connected to the outer wall of the mounting plate 54. The telescopic ends of the multiple fourth electric telescopic rods 55 are all fixedly connected to the first support plate 56. The inner wall of the first support plate 56 is fixedly connected to the fourth slide rail 57.

[0032] The top side wall of the fourth slide rail 57 is slidably connected to the fourth slide plate 58. The side walls of the fourth slide plate 58 are all fixedly connected to the fifth electric telescopic rod 59. The telescopic ends of the fifth electric telescopic rod 59 are all fixedly connected to the first side plate 510. The side wall of the first side plate 510 is fixedly connected to the second welding gun 511.

[0033] Multiple sixth electric telescopic rods 512 are fixedly connected to the outer wall of the mounting plate 54. The telescopic ends of the multiple sixth electric telescopic rods 512 are all fixedly connected to the second support plate 513. The inner wall of the second support plate 513 is fixedly connected to the fifth slide rail 514. The side wall of the fifth slide rail 514 is slidably connected to the fifth slide plate 515. The top side wall of the fifth slide plate 515 is fixedly connected to the locking plate 516. The side wall of one end of the locking plate 516 is fixedly connected to the second motor 517. The side wall of the other end of the locking plate 516 is rotatably connected to the round rod 518. The output end of the second motor 517 passes through the side wall of the locking plate 516 and is fixedly connected to one end of the round rod 518.

[0034] One end of the round rod 518 is fixedly connected to a third support plate 519. The inner wall of the third support plate 519 is fixedly connected to a sixth slide rail 520. The side wall of the sixth slide rail 520 is slidably connected to a sixth sliding plate 521. One end of the side wall of the sixth sliding plate 521 is fixedly connected to a seventh electric telescopic rod 522. The telescopic end of the seventh electric telescopic rod 522 is fixedly connected to a second side plate 523. The side wall of the second side plate 523 is fixedly connected to a third welding torch 524.

[0035] Specifically, the first welding torch 65 is used to weld the outer wall of the ring-shaped battery casing, and the fourth slide rail 57 drives the second welding torch 511 to weld the inner wall of the bottom end of the mounting groove on the outer wall of the ring-shaped battery casing. At the same time, the movement trajectory and welding angle of the third welding torch 524 are changed according to the inclination angle of the inner walls at both ends of the mounting groove on the outer wall of the ring-shaped battery casing. This ensures that when the third welding torch 524 is welding the inner walls at both ends of the mounting groove, the welding end of the third welding torch 524 is always perpendicular to the inner wall of one end of the corresponding mounting groove. This facilitates welding the inner walls at both ends of the mounting groove and avoids the need for workers to change the corresponding welding parts according to the inclination angle of the inner walls at both ends of the mounting groove when welding different ring-shaped battery casings. This greatly improves the welding efficiency and reliability when welding ring-shaped battery casings.

[0036] The operating principle of the present invention is described as follows:

[0037] In this invention, when welding is required on an annular battery casing with mounting grooves on its outer wall, the second slide rail 34 is first activated, driving multiple second sliding plates 35 to move, so that the spacing between multiple fixing plates 37 matches the spacing between the mounting grooves on the outer wall of the corresponding annular battery casing. Then, the operator places the annular battery casing between the fixing plates 37. Next, the first electric telescopic rod 36 is activated, driving the fixing plates 37 to move, using the fixing plates 37 to fix the bottom inner wall of the mounting groove on the outer wall of the annular battery casing. Then, the operator installs the annular battery into one of the annular battery casings. Finally, the two first slide rails 31 are activated, driving the corresponding first sliding plates 32 to move, so that the two separate annular battery casings are connected. At this point, the two separate annular battery casings are in contact at the middle of the mounting ring 61. Then, the second electric telescopic rod 64 is activated, moving the first welding torch 65 so that its welding end contacts the outer wall of the annular battery casing. Next, the third slide rail 62 and the first welding torch 65 are moved, causing the third sliding plate 63 to move the first welding torch 65 to the contact position between the two annular battery casings. The first welding torch 65 then welds the outer wall of the annular battery casing. After welding the outer wall, the first welding torch 65 returns to its original position. Then, the third electric telescopic rod 51 is activated, moving the fixing frame 52 closer to the annular battery casing. Finally, the first motor 53 is activated, causing the mounting plate 54 to rotate. The process involves positioning multiple second welding torches 511 on one side of the corresponding ring-shaped battery casing with an opening in the mounting groove. Then, the first electric telescopic rod 36 corresponding to one side of the second welding torch 511 is restored to its original position, preventing the fixing plate 37 from fixing to the inner wall of the mounting groove. Next, the fourth electric telescopic rod 55 is activated, moving the first support plate 56 so that the second welding torch 511 is positioned above the bottom inner wall of the corresponding mounting groove. Then, the fifth electric telescopic rod 59 is activated, moving the second welding torch 511 into the mounting groove so that the welding end of the second welding torch 511 is directly above the contact point of the two ring-shaped battery casings. Then, the fourth electric telescopic rod 55 is retracted, causing the welding end of the second welding torch 511 to abut against the inner wall of the mounting groove. Finally, the fourth slide rail 57 is activated... The first motor 53 moves the fourth sliding plate 58, causing the second welding gun 511 to weld the inner wall of the bottom end of the mounting groove. After welding the inner wall of the bottom end of this batch of mounting grooves, the second welding gun 511 is controlled to return to its original position. Then, the corresponding fixing plate 37 is controlled to continue fixing the inner wall of the mounting groove. Then, the same steps are followed to weld the inner wall of the bottom end of other mounting grooves. After welding the inner wall of the bottom end of the mounting grooves is completed, the first motor 53 is controlled to drive the mounting plate 54 to rotate, causing the third welding gun 524 to rotate to one side of the corresponding mounting groove. Then, the second motor 517 is controlled to start, driving the second round rod 518 to rotate. The round rod 518 drives the third support plate 519 and the third welding gun 524 to rotate, so that the welding end of the third welding gun 524 is perpendicular to the inner wall of one end of the corresponding mounting groove.Furthermore, the tilt angle of the third support plate 519 is made perpendicular to the tilt angle of the inner wall of one end of the corresponding mounting groove. Then, by controlling the sixth electric telescopic rod 512 and the fifth slide rail 514 to drive the fifth sliding plate 515 to move, the third welding torch 524 welds the inner wall of one end of the mounting groove. After completing the welding of the bottom side of the inner wall of one end of the mounting groove, by controlling the rotation of the third support plate 519 and the activation of the sixth electric telescopic rod 512 and the fifth slide rail 514, the third welding torch 524 is made perpendicular to the side wall of other positions of the inner wall of one end of the mounting groove, which facilitates the welding of the inner wall of one end of the mounting groove by the third welding torch 524. After welding the inner wall of one end of the mounting slot, the second motor 517 is started to drive the corresponding third welding gun 524 to rotate. Then, the same steps are followed to weld the inner wall of the other end of the mounting slot, thus completing the welding of the inner wall of the mounting slot. After completing the welding of the inner walls of both ends of this batch of mounting slots, the third welding gun 524 is returned to its original position. Then, the first motor 53 is started to drive the third welding gun 524 to rotate, so that the third welding gun 524 moves to the side of the other unwelded mounting slots of the annular battery casing. Then, the same steps are followed to weld the inner walls of the other mounting slots, thus completing the welding of the annular battery casing. Welding the inner wall of the mounting groove in the outer wall enables welding of the annular battery casing with the mounting groove in the outer wall. When welding the annular battery casing with the mounting groove in the outer wall is required, the inner wall of the mounting groove in the outer wall of the annular battery casing is fixed by the fixing plate 37. Then, the two separate annular battery casings are controlled to fit together, facilitating stable welding of the annular battery casing. The first welding gun 65 is used to weld the outer wall of the annular battery casing, and the fourth slide rail 57 drives the second welding gun 511 to weld the bottom inner wall of the mounting groove in the outer wall of the annular battery casing. Simultaneously, according to the annular... The tilt angle of the inner walls at both ends of the mounting groove on the outer wall of the ring-shaped battery casing changes the movement trajectory and welding angle of the third welding torch 524. This ensures that when welding the inner walls at both ends of the mounting groove, the welding end of the third welding torch 524 is always perpendicular to the inner wall of the corresponding mounting groove. This facilitates welding of the inner walls at both ends of the mounting groove and avoids the need for workers to change the welding parts according to the tilt angle of the inner walls of the mounting groove when welding different ring-shaped battery casings. This greatly improves the welding efficiency and reliability when welding ring-shaped battery casings.

[0038] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A battery case welding machine comprising a base plate (1), characterized in that, The top end side wall of the bottom plate (1) is symmetrically provided with two first grooves (2), the inner wall of the first groove (2) is fixedly connected with a fixed and movable assembly (3) for fixing and driving the annular battery shell to move, the top end side wall of the bottom plate (1) is fixedly connected with a bent rod (4), one end of the bent rod (4) is fixedly connected with an inner wall welding assembly (5) for welding the inner wall of the installation groove of the annular battery shell, and the top end side wall of the bottom plate (1) is fixedly connected with an outer wall welding assembly (6) for welding the outer wall of the annular battery shell. The inner wall welding assembly (5) comprises a third electric telescopic rod (51) fixedly connected at one end of the bent rod (4), a fixed frame (52) fixedly connected at the telescopic end of the third electric telescopic rod (51), a first motor (53) fixedly connected at one end of the fixed frame (52), and a mounting disc (54) rotatably connected at one end of the fixed frame (52). The outer wall of the mounting disc (54) is fixedly connected with a plurality of fourth electric telescopic rods (55), and the telescopic ends of the plurality of fourth electric telescopic rods (55) are fixedly connected with first supporting plates (56). The top end side wall of the fourth sliding rail (57) is slidably connected with a fourth sliding plate (58), the side wall of the fourth sliding plate (58) is fixedly connected with a fifth electric telescopic rod (59), and the telescopic end of the fifth electric telescopic rod (59) is fixedly connected with a first side plate (510). The outer wall of the mounting disc (54) is fixedly connected with a plurality of sixth electric telescopic rods (512), and the telescopic ends of the plurality of sixth electric telescopic rods (512) are fixedly connected with second supporting plates (513). The inner wall of the second supporting plate (513) is fixedly connected with a fifth sliding rail (514), the side wall of the fifth sliding rail (514) is slidably connected with a fifth sliding plate (515), the top end side wall of the fifth sliding plate (515) is fixedly connected with a clamping plate (516), one end of the clamping plate (516) is fixedly connected with a second motor (517), and the other end of the clamping plate (516) is rotatably connected with a round rod (518). The output end of the second motor (517) penetrates the side wall of the clamping plate (516) and is fixedly connected with one end of the round rod (518). One end of the round rod (518) is fixedly connected with a third supporting plate (519), the inner wall of the third supporting plate (519) is fixedly connected with a sixth sliding rail (520), the side wall of the sixth sliding rail (520) is slidably connected with a sixth sliding plate (521), one end of the sixth sliding plate (521) is fixedly connected with a seventh electric telescopic rod (522), the telescopic end of the seventh electric telescopic rod (522) is fixedly connected with a second side plate (523), the side wall of the second side plate (523) is fixedly connected with a third welding gun (524).

2. A battery case welding machine according to claim 1, wherein The fixed moving assembly (3) comprises a first sliding rail (31) fixedly connected to the inner wall of the first recess (2), a first sliding plate (32) slidably connected to the top end side wall of the first sliding rail (31), a fixed ring (33) fixedly connected to the top end side wall of the first sliding plate (32), a second sliding rail (34) fixedly connected to the inner wall of the fixed ring (33), a plurality of second sliding plates (35) slidably connected to the side wall of the second sliding rail (34), a first electric telescopic rod (36) fixedly connected to the side wall of each of the plurality of second sliding plates (35), and a fixed plate (37) fixedly connected to the telescopic end of each of the first electric telescopic rods (36).

3. The battery case welding machine according to claim 1, wherein The outer wall welding assembly (6) comprises a mounting ring (61) fixedly connected to the top end side wall of the bottom plate (1), a third sliding rail (62) fixedly connected to the inner wall of the mounting ring (61), a third sliding plate (63) slidably connected to the side wall of the third sliding rail (62), a second electric telescopic rod (64) fixedly connected to the side wall of the third sliding plate (63), and a first welding gun (65) fixedly connected to the telescopic end of the second electric telescopic rod (64).

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