Welding machine for welding battery tabs

Abstract

The invention discloses a welding machine for welding battery tabs, and relates to the technical field of battery welding devices.The welding machine comprises a workbench, a pair of vertical plates are fixedly connected to the top of the workbench, driving sliding grooves are formed in the sides, close to each other, of the pair of vertical plates, and driving sliding rods are slidably connected into the driving sliding grooves; a driving shell is fixedly connected to the end of the driving sliding rod, a fixing assembly is arranged in the driving shell and comprises a rotating connecting rod, the rotating connecting rod is inserted into the side, away from the vertical plate, of the driving shell, and a main rod is fixedly connected to the end, arranged outside the driving shell, of the rotating connecting rod. The technical problems that in the prior art, a soft package battery and a cylindrical battery are included, an existing device can only achieve a good fixing effect on the cylindrical battery, but cannot fix the soft package battery, so that when the soft package battery is welded, the soft package battery deviates from a welding rail, and the final welding effect is affected are solved.

Description

Technical Field

[0001] The invention relates to the technical field of battery welding devices, in particular to a welding machine for welding battery tabs. Background Art

[0002] Battery tab welding is an important part of the battery manufacturing process. It involves firmly connecting the positive and negative tabs of the battery with components such as the battery housing or current collector to form a complete current loop. With the rapid development of markets such as new energy vehicles and portable electronic devices, the demand for high-performance and high-energy-density lithium batteries is growing. As a key energy component of these devices, the performance of lithium batteries directly affects the use effect and user experience of the equipment. In the manufacturing process of lithium batteries, welding technology plays a vital role, especially the welding of battery tabs, which is directly related to the safety and reliability of the battery. It uses a high-energy laser beam to form a tiny molten pool on the surface of the welded material, and achieves a firm connection between the tabs and battery components by precisely controlling the movement trajectory and parameters of the laser beam. Laser welding has the advantages of small heat-affected zone, non-contact processing, and high processing efficiency. It is particularly suitable for precision welding and highly automated production. In lithium battery manufacturing, laser welding machines have been widely used in the welding of tabs, battery cell housings, flexible joints, explosion-proof valves and other components.

[0003] After searching, the patent document (authorization announcement number is CN117444399B) includes a transport frame, a material-cutting frame, a guide rail, a support frame, a laser welding gun and a controller, etc. The top right side of the transport frame is connected to the material-cutting frame, the top left side of the transport frame is symmetrically connected to the guide rail, the guide rail is connected to the material-cutting frame, the guide rail is slidably connected to the support frame, the laser welding gun is symmetrically installed on the support frame, and the controller is installed at the front of the transport frame. The dual-axis motor is used as a power source to drive the conveyor belt to rotate and transport the battery pack, and the clamping assembly can make the laser welding gun intermittently move down to perform laser welding of the pole ear, achieving the effect of automatic transportation and welding, improving the overall work efficiency, and ensuring the orderly progress of welding work.

[0004] However, the above device still has shortcomings:

[0005] There are many types of batteries, including soft-pack batteries and cylindrical batteries. The existing devices can only fix cylindrical batteries well, but cannot fix soft-pack batteries, which causes the welding track to deviate when the soft-pack batteries are welded, thereby affecting the final welding effect. Summary of the invention

[0006] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a welding machine for battery tab welding, which solves the problem that there are many types of batteries, including soft-pack batteries and cylindrical batteries, and the existing device can only fix cylindrical batteries well, but it cannot fix soft-pack batteries, which causes the problem of offset welding track when welding soft-pack batteries, thereby affecting the final welding effect.

[0007] To achieve the above-mentioned purpose, the present invention proposes a welding machine for battery tab welding, comprising a workbench, a pair of vertical plates fixedly connected to the top of the workbench, a driving slide groove is opened on the side of the pair of vertical plates close to each other, a driving slide rod is slidably connected inside the driving slide groove, the end of the driving slide rod is fixedly connected to a driving shell, a fixing component is arranged inside the driving shell, and the fixing component comprises a rotating connecting rod, the rotating connecting rod is inserted into the side of the driving shell away from the vertical plate, the end of the rotating connecting rod is arranged outside the driving shell and is fixedly connected to a main rod, the bottom of the main rod is rotatably connected to a rotating shaft, the interior of the rotating shaft is fixedly connected to a secondary rod, and the top side wall of the secondary rod is fixedly connected to a suction cup.

[0008] Preferably, a plurality of bottom brackets are fixedly connected to the bottom of the workbench, and a bottom partition is fixedly connected to the side wall of the bottom bracket.

[0009] Preferably, the inner side wall of the vertical plate is rotatably connected to a plurality of driving shafts, the outer side of the driving shaft is sleeved with a transmission belt, a pair of side walls of the vertical plates are fixedly connected to connecting columns, and welding grooves are provided on the sides of the vertical plates close to each other, and a motor slide rod is slidably connected inside the welding groove, and the end of the motor slide rod is fixedly connected to a welding fixing rod.

[0010] Preferably, a reinforcing assembly is provided inside the drive shell, and the reinforcing assembly includes a main driving rod, the main driving rod is inserted into the top of the driving shell, one end of the main driving rod arranged in the driving shell is fixedly connected to the auxiliary driving rod, the interior of the drive shell is fixedly connected to an inner box body, the interior of the inner box body is fixedly connected to a partition, the end of the auxiliary driving rod extends to the bottom of the inner box body, the end of the auxiliary driving rod arranged below the inner box body is fixedly connected to a plug rod, the plug rod is inserted in the inner box body, one end of the plug rod arranged in the inner box body is plugged in the partition, a pressure plate is provided above the partition, the pressure plate is slidably connected to the inner box body, one end of the plug rod arranged in the inner box body is fixedly connected to the pressure plate, the side wall of the inner box body is provided with an air hole, the outer side wall of the inner box body is fixedly connected to a pressure connecting pipe, the pressure connecting pipe is rotatably connected to the rotating connecting rod, and the pressure connecting pipe is communicated with the air hole.

[0011] Preferably, a cooling component is provided inside the inner box body, and the cooling component includes a driving tooth, and the driving tooth is engraved on the side wall of one end of the main driving rod provided in the driving shell, and the end of the rotating connecting rod provided in the driving shell is fixedly connected to a driven gear, and the driven gear and the driving tooth are meshed with each other, and a protruding pipe is inserted into the side wall of the inner box body, and the inner side wall of the inner box body is fixedly connected to the inner pipe, and the protruding pipe is slidably connected in the inner pipe, and a first empty groove is opened inside the side wall of the driving shell, and the side wall of the protruding pipe is fixed A baffle is connected, the baffle is arranged in the first empty groove, a first spring is arranged inside the first empty groove, two ends of the first spring are respectively fixedly connected to the baffle and the inner box body, a first leakage hole is opened on the side wall of the protruding pipe, a second leakage hole is opened on the side wall of the inner pipe, an inner sliding groove is opened on the inner side wall of the inner pipe, an L-shaped plate is slidably connected inside the inner sliding groove, the L-shaped plate is L-shaped, and a second spring is fixedly connected to one end of the L-shaped plate away from the protruding pipe, and two ends of the second spring are respectively fixedly connected to the inner pipe and the L-shaped plate.

[0012] Preferably, a push plate is slidably connected inside the inner box, the partition is arranged between the pressure plate and the push plate, a third spring is arranged below the push plate, and both ends of the third spring are fixedly connected to the push plate and the inner box respectively.

[0013] Preferably, the inner pipe is arranged between the push plate and the partition plate.

[0014] Preferably, a restoring spring is arranged inside the driving housing, and two ends of the restoring spring are respectively fixedly connected to the auxiliary driving rod and the driving housing.

[0015] Preferably, the top of the main driving rod is arranged below the welding fixing rod.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. Through the setting of the fixing assembly, when fixing the battery, when facing the cylindrical battery, the auxiliary rod is brought close to the main rod, and the cylindrical battery will be clamped between a pair of auxiliary rods, thereby achieving the fixing effect thereof; when facing the soft pack, the auxiliary rod rotates under the action of the twisted shaft, and the auxiliary rod will press on the soft pack battery, thereby achieving the fixing of the soft pack battery. In this way, the device can respectively fix the cylindrical battery and the soft pack battery.

[0018] The benefit of this design is that the same device can flexibly adapt to different types of batteries, including cylindrical batteries and soft-pack batteries. This versatility reduces the types of fixtures that need to be prepared during production and use, reduces costs, improves efficiency, and simplifies the operation process. Users do not need to replace the entire fixture, but simply adjust the position and angle of the secondary rod to achieve the fixation of different types of batteries. This design simplifies the operation process, reduces the difficulty of operation, and improves the user experience.

[0019] 2. By strengthening the setting of the assembly, when the battery is welded, the welding fixing rod moves down to a suitable position, and the welding gun arranged on the welding fixing rod is in working state. When the welding fixing rod moves down, the main driving rod is driven to move down, and the main driving rod drives the auxiliary driving rod to carry the insertion rod and the pressure plate to move down. When the pressure plate moves down, the volume of the area enclosed by it and the top of the inner box becomes larger, but the volume of the gas inside it does not change. Since the suction cup is blocked by the battery, the inside thereof is in a negative pressure state, so that the suction cup generates a strong suction force, thereby achieving the effect of strengthening the fixation of the battery.

[0020] The benefit of this design is that during the welding process, the strong suction force generated by the suction cup can effectively prevent the battery from moving or shifting during the welding process, ensuring the stability and reliability of the welding process. Stable battery fixation helps reduce possible unexpected situations during welding, such as battery detachment, short circuit, etc., thereby improving the safety of welding operations. This design simplifies the battery fixation process before welding. The operator only needs to move the welding fixing rod down to the appropriate position to achieve a stable fixation of the battery without the need for additional clamps or tools, thereby improving production efficiency. Because the battery is firmly fixed, the welding process can proceed more smoothly, reducing welding interruptions and re-welding caused by battery movement or shifting, thereby improving welding efficiency.

[0021] 3. Through the setting of the cooling component, when the welding fixing rod moves downward, the device is in a welding state, and the driven gear is driven to rotate under the action of the meshing of the driving gear and the driven gear, thereby realizing its retraction and working state.

[0022] 4. Through the setting of the cooling component, when the welding fixing rod moves upward, the main driving rod moves upward under the action of the restoring spring. At this time, the active tooth drives the driven gear to rotate, and the main rod moves upward until the main rod contacts the protruding pipe and presses it into the inner pipe. As the protruding pipe moves, the bottom of the protruding pipe pushes the L-shaped plate, so that the first leakage hole and the second leakage hole are connected, so that the liquid in the inner box can flow into the protruding pipe through the second leakage hole and then directly contact the main rod, thereby achieving a cooling effect on the main rod. When the main rod moves downward, the protruding pipe is away from the inner pipe, and the second leakage hole will be blocked by the L-shaped plate, thereby preventing the liquid in the inner box from leaking out.

[0023] The advantage of this design is that when the temperature of the main rod rises due to welding or other operations, the cooling mechanism triggered by the upward movement of the welding fixing rod can be activated immediately, allowing the main rod to cool down quickly to prevent component damage or performance degradation caused by overheating. By precisely controlling the flow of liquid, the main rod is ensured to be cooled in time when needed, avoiding material fatigue, deformation or failure caused by continuous high-temperature operation. As a key component of the equipment, the stable working state of the main rod is crucial to the performance of the entire system. This design extends the service life of the main rod and improves the reliability and durability of the equipment through effective cooling measures. Since the main rod is well temperature-controlled, the failure and maintenance requirements caused by overheating are reduced, thereby reducing the maintenance cost of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0025] Figure 2 It is a side view structural schematic diagram of the present invention;

[0026] Figure 3 It is a schematic diagram of the motor slide bar structure of the present invention;

[0027] Figure 4 It is a schematic diagram of the structure of the drive housing of the present invention;

[0028] Figure 5 It is a schematic diagram of the internal structure of the drive housing of the present invention;

[0029] Figure 6 It is a schematic diagram of the main rod structure of the present invention;

[0030] Figure 7 It is a schematic diagram of the cross-sectional structure of the inner box body of the present invention;

[0031] Figure 8 For the present invention Figure 6 Schematic diagram of the structure at A in the middle;

[0032] Fig. 9 For the present invention Figure 7 Schematic diagram of the structure at point B in the middle.

[0033] In the figure: 1, workbench; 101, bottom bracket; 102, bottom partition; 2, drive shaft; 21, conveyor belt; 3, vertical plate; 31, connecting column; 32, welding slide; 33, welding fixed rod; 331, motor slide; 4, driving slide; 41, driving shell; 42, driving slide; 5, fixing assembly; 51, main rod; 501, rotating connecting rod; 52, twisting shaft; 53, auxiliary rod; 54, suction cup; 6, strengthening assembly; 61, main driving rod; 601, inner box; 6 02. Partition; 62. Auxiliary driving rod; 63. Insert rod; 64. Pressure plate; 641. Air hole; 65. Pressure connecting pipe; 7. Cooling component; 71. Active tooth; 72. Driven gear; 73. Protruding pipe; 731. First empty slot; 732. Baffle; 733. First spring; 74. Inner pipe; 75. First leakage hole; 76. Second leakage hole; 77. Inner slide groove; 78. L-shaped plate; 79. Second spring; 710. Push plate; 711. Third spring; 8. Restoring spring. DETAILED DESCRIPTION

[0034] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] like Figure 1-9 As shown, a welding machine for battery tab welding includes a workbench 1, a plurality of bottom brackets 101 are fixedly connected to the bottom of the workbench 1, a bottom partition 102 is fixedly connected to the side wall of the bottom bracket 101, and a pair of vertical plates 3 are fixedly connected to the top of the workbench 1.

[0036] The inner side wall of the vertical plate 3 is rotatably connected to a plurality of driving shafts 2, and the outer side of the driving shaft 2 is sleeved with a conveyor belt 21. A pair of side walls of the vertical plates 3 are fixedly connected to a connecting column 31. A welding slide groove 32 is provided on the side of the vertical plates 3 that are close to each other. The inside of the welding slide groove 32 is slidably connected to a motor slide rod 331. The motor slide rod 331 is externally connected to a motor for driving the motor slide rod 331 to move. The end of the motor slide rod 331 is fixedly connected to a welding fixing rod 33, and different types of welding gun heads can be set at the bottom of the welding fixing rod 33.

[0037] A pair of vertical plates 3 are provided with a driving slide groove 4 on one side close to each other, and a driving slide rod 42 is slidably connected inside the driving slide groove 4. The driving slide rod 42 is externally connected to a motor, and the motor provides a power source for the movement of the driving slide rod 42. The end of the driving slide rod 42 is fixedly connected to a driving shell 41, and a fixing component 5 is arranged inside the driving shell 41. The fixing component 5 includes a rotating connecting rod 501, which is inserted into a side of the driving shell 41 away from the vertical plate 3. The rotating connecting rod 501 is arranged on one end outside the driving shell 41 and is fixedly connected to a main rod 51. The bottom of the main rod 51 is rotatably connected to a twisting shaft 52, and the inside of the twisting shaft 52 is fixedly connected to a sub-rod 53, and the top side wall of the sub-rod 53 is fixedly connected to a suction cup 54.

[0038] When fixing the battery, when facing a cylindrical battery, the auxiliary rod 53 is brought close to the main rod 51, and the cylindrical battery will be clamped between a pair of auxiliary rods 53, thereby achieving a fixing effect on it. When facing a soft-pack battery, the auxiliary rod 53 rotates under the action of the twisted shaft 52, and the auxiliary rod 53 will press on the soft-pack battery, thereby achieving the fixing of the soft-pack battery. In this way, the device can fix the cylindrical battery and the soft-pack battery respectively.

[0039] Such a design enables the same device to flexibly adapt to different types of batteries, including cylindrical batteries and soft-pack batteries. This versatility reduces the types of fixtures that need to be prepared during production and use, reduces costs, improves efficiency, and simplifies the operation process. Users do not need to replace the entire fixture, but simply adjust the position and angle of the auxiliary rod 53 to achieve the fixation of different types of batteries. This design simplifies the operation process, reduces the difficulty of operation, and improves the user experience.

[0040] A reinforcing assembly 6 is disposed inside the driving housing 41 . The reinforcing assembly 6 includes a main driving rod 61 . The top of the main driving rod 61 is disposed below the welding fixing rod 33 .

[0041] The main driving rod 61 is inserted into the top of the driving housing 41, and one end of the main driving rod 61 arranged in the driving housing 41 is fixedly connected to the auxiliary driving rod 62, the interior of the driving housing 41 is fixedly connected to the inner box 601, and the interior of the inner box 601 is fixedly connected to the partition 602, and the end of the auxiliary driving rod 62 extends to the bottom of the inner box 601, and one end of the auxiliary driving rod 62 arranged under the inner box 601 is fixedly connected to the insertion rod 63, which is inserted in the inner box 601 and is arranged One end of the inner box body 601 is inserted into the partition 602, and a pressure plate 64 is arranged above the partition 602. The pressure plate 64 is slidably connected in the inner box body 601, and one end of the insertion rod 63 arranged in the inner box body 601 is fixedly connected to the pressure plate 64. An air hole 641 is opened on the side wall of the inner box body 601, and a pressure connecting pipe 65 is fixedly connected to the outer wall of the inner box body 601. The pressure connecting pipe 65 is rotatably connected to the rotating connecting rod 501, and the pressure connecting pipe 65 is communicated with the air hole 641.

[0042] When the battery is welded, the welding fixing rod 33 moves down to a suitable position, and the welding gun provided on the welding fixing rod 33 is in working condition. When the welding fixing rod 33 moves down, the main driving rod 61 is driven to move down, and the main driving rod 61 drives the auxiliary driving rod 62 to carry the insertion rod 63 and the pressure plate 64 to move down. When the pressure plate 64 moves down, the volume of the area enclosed by it and the top of the inner box 601 increases, but the volume of the gas inside it does not change. Since the suction cup 54 is blocked by the battery, this causes the interior thereof to be in a negative pressure state, so that the suction cup 54 generates a strong suction force, thereby achieving the effect of strengthening the fixation of the battery.

[0043] During the welding process, the design effectively prevents the battery from moving or shifting during the welding process through the strong suction force generated by the suction cup 54, ensuring the stability and reliability of the welding process. Stable battery fixation helps to reduce unexpected situations that may occur during the welding process, such as battery detachment, short circuit, etc., thereby improving the safety of the welding operation. This design simplifies the battery fixation process before welding. The operator only needs to move the welding fixing rod 33 down to the appropriate position to achieve a stable fixation of the battery without the need for additional clamps or tools, thereby improving production efficiency. Since the battery is firmly fixed, the welding process can be carried out more smoothly, reducing welding interruptions and re-welding caused by battery movement or shifting, thereby improving welding efficiency.

[0044] A cooling component 7 is provided inside the inner box body 601, and the cooling component 7 includes a driving tooth 71, which is engraved on the side wall of one end of the main driving rod 61 arranged in the driving shell 41, and one end of the rotating connecting rod 501 arranged in the driving shell 41 is fixedly connected to a driven gear 72, and the driven gear 72 and the driving tooth 71 are meshed with each other. When the welding fixing rod 33 moves downward, the device is in a welding state, and the driven gear 72 is driven to rotate under the action of the meshing of the driving tooth 71 and the driven gear 72, thereby realizing its retraction and working state.

[0045] A protruding pipe 73 is inserted into the side wall of the inner box body 601, and an inner pipe 74 is fixedly connected to the inner side wall of the inner box body 601. The protruding pipe 73 is slidably connected in the inner pipe 74. A first empty groove 731 is provided inside the side wall of the driving shell 41, and a baffle 732 is fixedly connected to the side wall of the protruding pipe 73. The baffle 732 is arranged in the first empty groove 731. A first spring 733 is arranged inside the first empty groove 731, and the two ends of the first spring 733 are respectively fixedly connected to the baffle 732 and the inner box body 601. A first leakage hole 75 is provided on the side wall of the protruding pipe 73, and a second leakage hole 76 is provided on the side wall of the inner pipe 74. An inner sliding groove 77 is provided on the inner side wall of the inner pipe 74, and an L-shaped plate 78 is slidably connected inside the inner sliding groove 77. The L-shaped plate 78 is L-shaped, and a second spring 79 is fixedly connected to the end of the L-shaped plate 78 away from the protruding pipe 73, and the two ends of the second spring 79 are respectively fixedly connected to the inner pipe 74 and the L-shaped plate 78.

[0046] When the welding fixing rod 33 moves upward, the main driving rod 61 moves upward under the action of the restoring spring 8. At this time, the active tooth 71 drives the driven gear 72 to rotate, and the main rod 51 moves upward until the main rod 51 contacts the protruding pipe 73 and forces it into the inner pipe 74. As the protruding pipe 73 moves, the bottom of the protruding pipe 73 pushes the L-shaped plate 78, so that the first leakage hole 75 and the second leakage hole 76 are connected, so that the liquid in the inner box 601 can flow into the protruding pipe 73 through the second leakage hole 76 and then directly contact the main rod 51, thereby achieving a cooling effect on the main rod 51. When the main rod 51 moves downward, the protruding pipe 73 is away from the inner pipe 74, and the second leakage hole 76 will be blocked by the L-shaped plate 78, thereby preventing the liquid in the inner box 601 from leaking out.

[0047] When the temperature of the main rod 51 rises due to welding or other operations, the cooling mechanism triggered by the upward movement of the welding fixing rod 33 can be activated immediately, so that the main rod 51 can be cooled quickly to prevent component damage or performance degradation caused by overheating. By precisely controlling the flow of liquid, it is ensured that the main rod 51 is cooled in time when needed, avoiding material fatigue, deformation or failure caused by continuous high-temperature operation. As a key component of the equipment, the stable working state of the main rod 51 is crucial to the performance of the entire system. This design extends the service life of the main rod 51 and improves the reliability and durability of the equipment through effective cooling measures. Since the main rod 51 is well temperature-controlled, the failure and maintenance requirements caused by overheating are reduced, thereby reducing the maintenance cost of the equipment.

[0048] A push plate 710 is slidably connected inside the inner box 601, and the partition plate 602 is arranged between the pressure plate 64 and the push plate 710. A third spring 711 is arranged below the push plate 710, and both ends of the third spring 711 are fixedly connected to the push plate 710 and the inner box 601 respectively.

[0049] The inner pipe 74 is disposed between the push plate 710 and the partition plate 602 .

[0050] A restoring spring 8 is disposed inside the driving housing 41 , and two ends of the restoring spring 8 are fixedly connected to the auxiliary driving rod 62 and the driving housing 41 , respectively.

[0051] Working principle: When fixing the battery, when facing a cylindrical battery, the auxiliary rod 53 is brought close to the main rod 51, and the cylindrical battery will be clamped between a pair of auxiliary rods 53, thereby achieving a fixing effect on it. When facing a soft pack, the auxiliary rod 53 rotates under the action of the twisted shaft 52, and the auxiliary rod 53 will press on the soft pack battery, thereby fixing the soft pack battery. In this way, the device can fix the cylindrical battery and the soft pack battery respectively.

[0052] When the battery is welded, the welding fixing rod 33 moves down to a suitable position, and the welding gun provided on the welding fixing rod 33 is in working condition. When the welding fixing rod 33 moves down, the main driving rod 61 is driven to move down, and the main driving rod 61 drives the auxiliary driving rod 62 to carry the insertion rod 63 and the pressure plate 64 to move down. When the pressure plate 64 moves down, the volume of the area enclosed by it and the top of the inner box 601 increases, but the volume of the gas inside it does not change. Since the suction cup 54 is blocked by the battery, this causes the interior thereof to be in a negative pressure state, so that the suction cup 54 generates a strong suction force, thereby achieving the effect of strengthening the fixation of the battery.

[0053] When the welding fixing rod 33 moves upward, the main driving rod 61 moves upward under the action of the restoring spring 8. At this time, the active tooth 71 drives the driven gear 72 to rotate, and the main rod 51 moves upward until the main rod 51 contacts the protruding pipe 73 and forces it into the inner pipe 74. As the protruding pipe 73 moves, the bottom of the protruding pipe 73 pushes the L-shaped plate 78, so that the first leakage hole 75 and the second leakage hole 76 are connected, so that the liquid in the inner box 601 can flow into the protruding pipe 73 through the second leakage hole 76 and then directly contact the main rod 51, thereby achieving a cooling effect on the main rod 51. When the main rod 51 moves downward, the protruding pipe 73 is away from the inner pipe 74, and the second leakage hole 76 will be blocked by the L-shaped plate 78, thereby preventing the liquid in the inner box 601 from leaking out.

[0054] The above embodiments are only used to illustrate the technical method of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A welding machine for battery tab welding, characterized in that: The invention comprises a workbench (1), wherein a pair of vertical plates (3) are fixedly connected to the top of the workbench (1), a driving slide groove (4) is provided on the side of the pair of vertical plates (3) close to each other, a driving slide rod (42) is slidably connected inside the driving slide groove (4), an end of the driving slide rod (42) is fixedly connected to a driving shell (41), a fixing component (5) is arranged inside the driving shell (41), and the fixing component (5) comprises a rotating connecting rod (501), the rotating connecting rod (501) is inserted into a side of the driving shell (41) away from the vertical plate (3), one end of the rotating connecting rod (501) arranged outside the driving shell (41) is fixedly connected to a main rod (51), the bottom of the main rod (51) is rotatably connected to a rotating shaft (52), a secondary rod (53) is fixedly connected inside the rotating shaft (52), and a suction cup (54) is fixedly connected to the top side wall of the secondary rod (53).

2. A battery tab welding machine according to claim 1, characterized in that: A plurality of bottom brackets (101) are fixedly connected to the bottom of the workbench (1), and a bottom partition (102) is fixedly connected to the side wall of the bottom bracket (101).

3. A battery tab welding machine according to claim 1, characterized in that: The inner side wall of the vertical plate (3) is rotatably connected to a plurality of driving shafts (2), the outer side of the driving shaft (2) is sleeved with a transmission belt (21), a pair of side walls of the vertical plates (3) are fixedly connected to a connecting column (31), and the sides of the vertical plates (3) close to each other are each provided with a welding slide groove (32), the inside of the welding slide groove (32) is slidably connected to a motor slide rod (331), and the end of the motor slide rod (331) is fixedly connected to a welding fixing rod (33).

4. A battery tab welding machine according to claim 3, characterized in that: A reinforcing assembly (6) is arranged inside the driving housing (41), and the reinforcing assembly (6) comprises a main driving rod (61), the main driving rod (61) is inserted into the top of the driving housing (41), one end of the main driving rod (61) arranged inside the driving housing (41) is fixedly connected to a secondary driving rod (62), the inside of the driving housing (41) is fixedly connected to an inner box (601), the inside of the inner box (601) is fixedly connected to a partition (602), the end of the secondary driving rod (62) extends to the bottom of the inner box (601), one end of the secondary driving rod (62) arranged below the inner box (601) is fixedly connected to an insertion rod (63), and the insertion rod (63) is inserted into The plug rod (63) is connected to the inner box (601), one end of which is arranged in the inner box (601) and is inserted into the partition (602). A pressure plate (64) is arranged above the partition (602). The pressure plate (64) is slidably connected in the inner box (601). One end of which is arranged in the inner box (601) and is fixedly connected to the pressure plate (64). An air hole (641) is opened on the side wall of the inner box (601). A pressure connecting pipe (65) is fixedly connected to the outer side wall of the inner box (601). The pressure connecting pipe (65) is rotatably connected to the rotating connecting rod (501). The pressure connecting pipe (65) is communicated with the air hole (641).

5. A battery tab welding machine according to claim 4, characterized in that: A cooling component (7) is arranged inside the inner box (601), and the cooling component (7) comprises a driving tooth (71), and the driving tooth (71) is engraved on a side wall of one end of the main driving rod (61) arranged inside the driving housing (41); one end of the rotating connecting rod (501) arranged inside the driving housing (41) is fixedly connected to a driven gear (72), and the driven gear (72) and the driving tooth (71) are meshed with each other; a protruding pipe (73) is inserted into the side wall of the inner box (601), and an inner pipe (74) is fixedly connected to the inner side wall of the inner box (601), and the protruding pipe (73) is slidably connected in the inner pipe (74); a first empty groove (731) is opened inside the side wall of the driving housing (41), and a baffle (732) is fixedly connected to the side wall of the protruding pipe (73) ), the baffle (732) is arranged in the first empty groove (731), a first spring (733) is arranged inside the first empty groove (731), two ends of the first spring (733) are respectively fixedly connected to the baffle (732) and the inner box (601), a first leakage hole (75) is opened on the side wall of the protruding pipe (73), a second leakage hole (76) is opened on the side wall of the inner pipe (74), an inner sliding groove (77) is opened on the inner side wall of the inner pipe (74), an L-shaped plate (78) is slidably connected inside the inner sliding groove (77), the L-shaped plate (78) is L-shaped, and one end of the L-shaped plate (78) away from the protruding pipe (73) is fixedly connected to the second spring (79), and two ends of the second spring (79) are respectively fixedly connected to the inner pipe (74) and the L-shaped plate (78).

6. A battery tab welding machine according to claim 5, characterized in that: A push plate (710) is slidably connected inside the inner box (601), the partition plate (602) is arranged between the pressure plate (64) and the push plate (710), a third spring (711) is arranged below the push plate (710), and two ends of the third spring (711) are respectively fixedly connected to the push plate (710) and the inner box (601).

7. A battery tab welding welding machine according to claim 6, characterized in that: The inner pipe (74) is disposed between the push plate (710) and the partition plate (602).

8. A battery tab welding machine according to claim 1, characterized in that: A restoring spring (8) is arranged inside the driving housing (41), and two ends of the restoring spring (8) are respectively fixedly connected to the auxiliary driving rod (62) and the driving housing (41).

9. A battery tab welding machine according to claim 4, characterized in that: The top of the main driving rod (61) is arranged below the welding fixing rod (33).

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