Sodium-ion battery cap welding device and welding method

Abstract

The invention relates to a sodium ion battery cap welding device and method, and relates to the technical field of battery component machining. The equipment comprises a working frame, an assembling device, a galvanometer welding machine and two working mechanisms, the working mechanisms are located on the working frame, the two working mechanisms are arranged in an axial symmetry mode, the assembling device is located between the two working mechanisms, each working mechanism comprises a top cover conveying assembly and an anti-explosion cover bearing box, and the top cover conveying assemblies and the anti-explosion cover bearing boxes are both arranged on the working frame. The top cover conveying assembly is located on one side of the anti-explosion cover bearing box and used for conveying top covers, the anti-explosion cover bearing box is used for storing anti-explosion covers, the assembling device is used for assembling the top covers and the anti-explosion covers together, and the galvanometer welding machine is arranged on the working frame and used for welding the top covers and the anti-explosion covers to form cover caps. The cap welding device has the effects of being high in automation degree and improving the cap welding efficiency.

Description

Technical Field

[0001] The present application relates to the field of battery component processing, and in particular to a sodium ion battery cap welding device and welding method. Background Art

[0002] In the battery manufacturing sector, the rapid development of various electronic devices and new energy vehicles is driving increasing demand for batteries. Sodium-ion batteries, in particular, have become highly promising energy storage devices due to their abundant raw materials and low cost. The production of sodium-ion batteries involves multiple steps, with cap welding being a key process for ensuring battery safety and stable performance. High-quality cap welding effectively prevents leakage of internal battery materials, improving the battery's sealing and reliability, and is crucial for ensuring proper battery operation and extending its lifespan.

[0003] Traditionally, sodium-ion battery cap welding involves manual labor combined with conventional welding equipment. Workers manually assemble the top cap and explosion-proof cover, then weld them using conventional welding equipment. This method requires high worker skill, is labor-intensive, and results in low production efficiency, requiring further improvement. Summary of the Invention

[0004] In order to improve the problem of low production efficiency in manual cap production, the present application provides a sodium ion battery cap welding device and welding method.

[0005] In the first aspect, the present application provides a sodium ion battery cap welding device adopting the following technical solution: A sodium ion battery cap welding device comprises a work frame, an assembly device, a galvanometer welding machine and two working mechanisms, wherein the working mechanisms are located on the work frame, the two working mechanisms are arranged in an axisymmetric manner, the assembly device is located between the two working mechanisms, the working mechanisms include a top cover conveying assembly and an explosion-proof cover receiving box, the top cover conveying assembly and the explosion-proof cover receiving box are both arranged on the work frame, and the top cover conveying assembly is located on one side of the explosion-proof cover receiving box, the top cover conveying assembly is used to convey the top cover, the explosion-proof cover receiving box is used to store the explosion-proof cover, the assembly device is used to assemble the top cover and the explosion-proof cover together, the galvanometer welding machine is arranged on the work frame, and is used to weld the top cover and the explosion-proof cover to form a cap.

[0006] By adopting the above technical solution, during operation, several explosion-proof covers are placed in the explosion-proof cover receiving box in sequence, and the top cover is transported to the assembly device by the top cover conveying assembly, and then the assembly device is started, and the explosion-proof cover is inserted into the top cover, so that the explosion-proof cover and the top cover are assembled together to form a cap, and then the galvanometer welding machine is started to weld and fix the explosion-proof cover and the top cover to complete the welding of the cap. In this process, feeding, assembling and welding are all mechanized, with a high degree of automation, thereby improving the welding efficiency of the cap.

[0007] Optionally, the top cover conveying assembly includes a vibrating screen plate and a conveyor belt, the vibrating screen plate is used to receive a plurality of top covers, the conveyor belt is arranged on the work frame, the output end of the vibrating screen plate is connected to the conveyor belt, and the conveyor belt can receive the top covers.

[0008] By adopting the above technical solution, several top covers are placed in the vibrating screen tray, which causes the top covers to move onto the conveyor belt in sequence. Then, the conveyor belt is started, which drives the top covers to move to the assembly device in sequence for assembly of the explosion-proof cover.

[0009] Optionally, the conveyor belt is provided with a plurality of grooves, and the plurality of grooves are arranged at intervals along the length direction of the conveyor belt.

[0010] By adopting the above technical solution, the groove can better position the top cover and prevent it from shifting during the transmission process.

[0011] Optionally, a limiting rod is provided on the work frame, and the limiting rod is located at the output end of the vibrating screen disc and above the conveyor belt. When the top cover is located in the groove, it can pass under the limiting rod.

[0012] By adopting the above technical solution, when the top cover is discharged from the output end of the vibrating screen disc, the bottom of the top cover is already placed on the conveyor belt, but the limit rod is horizontally mounted in front of the movement of the top cover, and the height of the top cover just abuts against the limit rod, thereby limiting the top cover from moving with the conveyor belt, that is, at this time the top cover slides relatively on the conveyor belt.

[0013] When the top cover moves to one of the grooves, the top cover falls directly into the groove. At this time, the height of the top cover drops and is located below the limit rod, so that the limit rod loses its limiting effect, allowing the top cover to be located in the groove and move under the drive of the conveyor belt.

[0014] Optionally, the assembly device includes a flipping motor, a flipping rod, a receiving suction cup and a receiving suction cup, the flipping motor is arranged on the workbench, the flipping motor is located between the two conveyor belts, the output end of the flipping motor is fixed to one end of the flipping rod, the flipping motor is used to drive the flipping rod to flip above the conveyor belt, the receiving suction cup and the receiving suction cup are both located on the end of the flipping rod away from the flipping motor, the receiving suction cup and the receiving suction cup are respectively arranged on both sides of the flipping rod, and the receiving suction cup and the receiving suction cup are used to adsorb the explosion-proof cover.

[0015] By adopting the above technical solution, when the top cover moves to the flip motor driven by the conveyor belt, in the initial state, the flip rod faces the conveyor belt on the left, the receiving suction cup faces upward, and the receiving suction cup faces downward and is aligned with the conveyor belt on the left. Then, an explosion-proof cover in the left explosion-proof cover receiving box is placed on the receiving suction cup and fixed by suction. Subsequently, the flip motor is started, driving the flip rod to rotate, so that the receiving suction cup turns to the conveyor belt on the right. At this time, the receiving suction cup faces downward and inserts the absorbed explosion-proof cover into the top cover on the right conveyor belt. Because the flip rod has flipped 180 degrees at this time, the explosion-proof cover on the receiving suction cup is changed from being inverted to being upright, so that the cap can be assembled in the forward direction.

[0016] When the receiving suction cup is facing downward, the receiving suction cup turns upward. At this time, one of the explosion-proof covers in the right explosion-proof cover receiving box is placed on the receiving suction cup and fixed by the receiving suction cup. Then, the flip motor is started again to reset the flip rod, so that the receiving suction cup turns downward again and the absorbed explosion-proof cover is inserted into the top cover on the left conveyor belt to complete the assembly of the cover. At the same time, the receiving suction cup turns upward again to wait for the placement of the explosion-proof cover.

[0017] By repeating the above steps, each time the flip rod flips, a cap can be assembled. During the cap assembly process, the explosion-proof cover is also loaded simultaneously, thus achieving full-station operation of the entire cap production process and improving work efficiency. In addition, each time the upward suction cup on the anti-collision rod absorbs the explosion-proof cover and flips it upward, after the explosion-proof cover is placed on the flip rod, each time the flip rod flips, the explosion-proof cover is on the windward side, preventing the explosion-proof cover from falling and improving stability.

[0018] Optionally, the working mechanism also includes a picking device, which includes a driving assembly and a picking suction cup. The driving assembly is arranged on the working frame, and the picking suction cup is connected to the driving assembly. The driving assembly is used to drive the picking disk to absorb the explosion-proof cover in the explosion-proof cover receiving box.

[0019] By adopting the above technical solution, when the flip rod is aligned with the conveyor belt, the driving component is started to drive the picking suction cup to align with one of the explosion-proof covers in the explosion-proof cover receiving box, and after being adsorbed and fixed by the picking suction cup, the driving component is started again to pull the explosion-proof cover out of the explosion-proof cover receiving box and place it on the flip rod. At the same time, the picking device corresponding to the transmission belt on the other side also works synchronously to pick up the explosion-proof cover in advance, thereby improving the overall work efficiency.

[0020] Optionally, the driving assembly includes a moving rod, a moving motor, a moving block and a telescopic member. The moving rod is horizontally arranged on the working frame, and the end of the moving rod is rotatably connected to the working frame. The moving motor is arranged on the working frame, and the output end of the moving motor is coaxially fixed with one end of the moving rod, for driving the moving rod to rotate. The moving block is sleeved on the moving rod and threadedly connected to the moving rod. The moving block is slidably connected to the working frame, and when the moving rod rotates, it is used to drive the moving block to move along the length direction of the moving rod. The telescopic member is arranged on the moving block, and the telescopic member is connected to the picking suction cup.

[0021] By adopting the above technical solution, the moving motor is started to drive the moving rod to rotate. Since the moving block is threadedly connected to the moving rod and the moving block is restricted by the working frame, the moving block cannot rotate with the moving rod, so that the moving block moves along the length direction of the moving rod to adjust the horizontal position of the picking suction cup. Then, the telescopic part is started to enable the picking suction cup to align with the explosion-proof cover and adsorb the explosion-proof cover and pull it out of the explosion-proof cover receiving box.

[0022] Optionally, the telescopic part includes a telescopic cylinder and a lifting cylinder, the telescopic cylinder is arranged on the moving block, the lifting cylinder is connected to the output end of the telescopic cylinder, the telescopic cylinder is used to drive the lifting cylinder to move horizontally, the moving direction of the lifting cylinder is perpendicular to the moving direction of the moving block, the picking suction cup is connected to the output end of the lifting cylinder, and the lifting cylinder is used to drive the picking suction cup to move up and down.

[0023] By adopting the above technical solution, after the moving block drives the pickup suction cup to move into position in the horizontal direction, the telescopic cylinder is activated to drive the pickup suction cup to move in the longitudinal direction, so that the position of the pickup suction cup in the horizontal direction can be adjusted at will. When the pickup suction cup is aligned with the explosion-proof cover, the lifting cylinder is activated to drive the pickup suction cup downward and absorb the explosion-proof cover. Then, the lifting cylinder is used to drive the pickup suction cup upward, thereby extracting the explosion-proof cover from the explosion-proof cover receiving box, realizing the removal of the explosion-proof cover, thus completing the fully mechanized work and improving work efficiency.

[0024] Optionally, a rotating motor is provided on the workbench, the rotating motor is located between the two conveyor belts, and the rotating motor is connected to the galvanometer welding machine to drive the galvanometer welding machine to turn.

[0025] By adopting the above technical solution, when the assembly of the caps is completed on the right conveyor belt, the right conveyor belt is started, driving the caps to move to the galvanometer welding machine for welding and fixation. At the same time, the flip rod is also flipped to the left conveyor belt, and the assembly of the caps is completed on the left conveyor belt. Then, the left conveyor belt is restarted, causing the caps to move to the galvanometer welding machine. At the same time, the rotary motor is started to drive the galvanometer welding machine to turn and weld the caps on the left conveyor belt. Due to the reciprocating rotation of the flip rod, the assembly of the caps is completed on the conveyor belts on both sides in sequence, so that the galvanometer welding machine can complete the welding of the caps on both sides by turning left and right, and the operation is convenient and orderly.

[0026] On the other hand, the present application provides a sodium ion battery cap welding device welding method using the following technical solutions: S1. Place several explosion-proof covers upside down in the explosion-proof cover receiving box in sequence, and place several top covers in the vibrating screen tray. The vibrating screen tray moves the top covers onto the conveyor belt in sequence. S2. Start the drive assembly on the left to drive the pickup suction cup to pick up the explosion-proof cover and move it toward the conveyor belt; S3. In the initial state, the flip rod is facing the conveyor belt on the left. At this time, the receiving suction cup is facing upward, and the receiving suction cup is facing downward and aligned with the conveyor belt on the left. Then, the suction cup is picked up and the explosion-proof cover is placed on the flip rod, and is fixed by the receiving suction cup; S4, the flip motor drives the flip rod to turn to the right conveyor belt, at this time the receiving suction cup is downwardly aligned with the right conveyor belt, and the receiving suction cup becomes upward, and the receiving suction cup is downwardly facing so that the explosion-proof cover on the receiving suction cup is inserted into the top cover on the right conveyor belt, thereby assembling the cap; S5. The driving assembly on the right side drives to pick up and absorb the explosion-proof cover and place it on the flip rod, and it is fixed by the receiving suction cup; S6, the flip motor drives the flip rod to reverse and reset, so that the receiving suction cup carries the explosion-proof cover to the left conveyor belt. At this time, the receiving suction cup faces downward and inserts the explosion-proof cover into the top cover on the left conveyor belt. At the same time, the receiving suction cup faces upward to receive the explosion-proof cover brought by the left picking suction cup. During the resetting process of the flip rod, the right conveyor belt drives the assembled cap to the galvanometer welding area for welding and fixing the explosion-proof cover and the top cover; The left conveyor belt receives the explosion-proof cover brought by the suction cup, so there are also assembled caps on the left conveyor belt. At this time, the left conveyor belt is started again, and the rotation motor is started at the same time, so that the galvanometer welding machine turns from the right conveyor belt to the left conveyor belt to weld the caps on the left conveyor belt; S7. Repeat the above steps to complete the welding of all caps.

[0027] In summary, this application has at least one of the following beneficial effects: 1. During operation, several explosion-proof covers are placed in the explosion-proof cover receiving box in sequence, and the top cover is transported to the assembly device by the top cover conveying assembly. Then the assembly device is started, and the explosion-proof cover is inserted into the top cover, so that the explosion-proof cover and the top cover are assembled together to form a cap. Then the galvanometer welding machine is started to weld the explosion-proof cover and the top cover together to complete the welding of the cap. In this process, feeding, assembling and welding are all mechanized, with a high degree of automation, which improves the welding efficiency of the cap. 2. Each time the flip rod flips, one cap is assembled, and the explosion-proof cover is loaded simultaneously during the cap assembly process, thus achieving full-station operation throughout the cap production process and improving work efficiency. Furthermore, the upward suction cup on the anti-collision rod absorbs the explosion-proof cover and flips it upward each time. After the explosion-proof cover is placed on the flip rod, each time the flip rod flips, the explosion-proof cover is on the windward side, preventing it from falling and improving stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic structural diagram of a sodium ion battery cap welding device according to an embodiment of the present application; Figure 2 This is a rear view of the sodium ion battery cap welding device according to an embodiment of the present application.

[0029] In the figure: 10, working frame; 20, assembling device; 21, flipping motor; 22, flipping rod; 23, receiving suction cup; 24, receiving suction cup; 30, working mechanism; 31, top cover conveying assembly; 311, vibrating screen plate; 312, conveyor belt; 3121, groove; 32, explosion-proof cover receiving box; 33, picking device; 331, driving assembly; 3311, moving rod; 3312, moving motor; 3313, moving block; 3314, telescopic part; 33141, telescopic cylinder; 33142, lifting cylinder; 332, picking suction cup; 40, galvanometer welding machine; 50, limiting rod; 60, rotating motor. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-2 This application is described in further detail.

[0031] The present application embodiment discloses a sodium ion battery cap welding device. Figure 1 and Figure 2 The sodium-ion battery cap welding device and method include a work frame 10, an assembly device 20, a galvanometer welding machine 40, and two working mechanisms 30. The two working mechanisms 30 are located on the work frame 10 and arranged axially symmetrically. The assembly device 20 is located between the two working mechanisms 30, facilitating simultaneous assembly of the top cap and explosion-proof cover delivered by the two working mechanisms 30.

[0032] Reference Figure 1 and Figure 2 Specifically, the working mechanism 30 includes a top cover conveying assembly 31 and an explosion-proof cover receiving box 32. The top cover conveying assembly 31 includes a vibrating screen plate 311 and a conveyor belt 312. The vibrating screen plate 311 is used to receive a number of top covers, and it can arrange the top covers in an orderly manner and move them toward the output end by vibration. The conveyor belt 312 is provided on the working frame 10, and the output end of the vibrating screen plate 311 is connected to the conveyor belt 312, and the conveyor belt 312 can receive the top covers. The conveyor belt 312 is usually composed of a driving motor, a driving wheel, a driven wheel and a belt. The driving motor drives the driving wheel to rotate, thereby causing the belt to circulate. The conveyor belt 312 can also be replaced by a chain conveyor or the like.

[0033] Reference Figure 1 and Figure 2 The conveyor belt 312 is provided with a plurality of grooves 3121, which are spaced apart along the length of the conveyor belt 312. The grooves 3121 can better position the top cover and prevent it from shifting during the conveying process. The shape of the grooves 3121 can be designed according to the shape of the top cover.

[0034] Reference Figure 1 and Figure 2 The work frame 10 is provided with a limiting rod 50, which is located at the output end of the vibrating screen disc 311 and above the conveyor belt 312. When the top cover is located in the groove 3121, it can pass under the limiting rod 50. The provision of the limiting rod 50 prevents the top covers from accumulating on the conveyor belt 312, and they only move while inserted in the groove 3121, thereby achieving an orderly arrangement of the top covers on the conveyor belt 312.

[0035] Reference Figure 1 and Figure 2The explosion-proof cover receiving box 32 is used to store the explosion-proof cover, and several explosion-proof covers are placed upside down in the explosion-proof cover receiving box 32. The assembly device 20 is used to assemble the top cover and the explosion-proof cover together. It includes a flip motor 21, a flip rod 22, a receiving suction cup 23, and a receiving suction cup 24. The flip motor 21 is arranged on the workbench 10, between the two conveyor belts 312. The output end of the flip motor 21 is fixed to one end of the flip rod 22. The flip motor 21 is used to drive the flip rod 22 to flip above the conveyor belt 312. The flip motor 21 is generally a stepper motor or a servo motor, which can accurately control the rotation angle and speed of the flip rod 22. The flip rod 22 can be made of a metal rod, which has a certain strength and rigidity.

[0036] Reference Figure 1 and Figure 2 The receiving suction cup 23 and the receiving suction cup 24 are both located on the end of the flip rod 22 away from the flip motor 21, and are provided on either side of the flip rod 22. The receiving suction cup 23 and the receiving suction cup 24 are used to hold the explosion-proof cover. The suction cups can be vacuum cups, which use a vacuum pump to generate vacuum suction to hold the explosion-proof cover. Other types of suction cups, such as electromagnetic cups, can also be used, as long as they can achieve both suction and release of the explosion-proof cover.

[0037] Reference Figure 1 and Figure 2 The working mechanism 30 also includes a picking device 33, which includes a driving assembly 331 and a picking suction cup 332. The driving assembly 331 includes a moving rod 3311, a moving motor 3312, a moving block 3313 and a telescopic member 3314. The moving rod 3311 is horizontally arranged on the working frame 10, and its end is rotatably connected to the working frame 10. The moving motor 3312 is arranged on the working frame 10, and the output end of the moving motor 3312 is coaxially fixed to one end of the moving rod 3311, and is used to drive the moving rod 3311 to rotate. The moving motor 3312 can be a stepping motor or a servo motor, and the rotation of the moving rod 3311 is achieved by precisely controlling the speed and direction of the motor.

[0038] Reference Figure 1 and Figure 2The moving block 3313 is sleeved on the moving rod 3311 and is threadedly connected to the moving rod 3311. The moving block 3313 is slidably connected to the workbench 10. When the moving rod 3311 rotates, according to the principle of threaded transmission, the moving block 3313 will move along the length direction of the moving rod 3311. The telescopic member 3314 is provided on the moving block 3313, and the telescopic member 3314 is connected to the picking suction cup 332. The telescopic member 3314 includes a telescopic cylinder 33141 and a lifting cylinder 33142. The telescopic cylinder 33141 is provided on the moving block 3313, and the lifting cylinder 33142 is connected to the output end of the telescopic cylinder 33141. The telescopic cylinder 33141 is used to drive the lifting cylinder 33142 to move horizontally, and its moving direction is perpendicular to the moving direction of the moving block 3313. The lifting cylinder 33142 is used to drive the picking suction cup 332 to move up and down. The structure of the picking up suction cup 332 is consistent with that of the receiving suction cup 23 .

[0039] When the top cover moves to the flip motor 21 driven by the conveyor belt 312, in the initial state, the flip rod 22 faces the left conveyor belt 312. At this time, the receiving suction cup 23 faces upward, and the receiving suction cup 24 faces downward and is aligned with the left conveyor belt 312. Then, the picking device 33 is used to place an explosion-proof cover from the left explosion-proof cover receiving box 32 on the receiving suction cup 23. The receiving suction cup 23 is sucked and fixed, realizing the automatic loading of the explosion-proof cover. Subsequently, the flip motor 21 is started, driving the flip rod 22 to rotate, causing the receiving suction cup 23 to turn to the right conveyor belt 312. At this time, the receiving suction cup 23 faces downward and inserts the absorbed explosion-proof cover into the top cover on the right conveyor belt 312. Because the flip rod 22 has now flipped 180 degrees, the explosion-proof cover on the receiving suction cup 23 is changed from being inverted to being upright, allowing the cap to be assembled in the forward direction.

[0040] When the receiving suction cup 23 is facing downward, the receiving suction cup 24 is turned upward. At this time, one of the explosion-proof covers in the right explosion-proof cover receiving box 32 is placed on the receiving suction cup 24 and fixed by suction. Then, the flip motor 21 is started again, causing the flip rod 22 to reset, so that the receiving suction cup 24 is turned downward again, and the absorbed explosion-proof cover is inserted into the top cover on the left conveyor belt 312, completing the assembly of the cover. At the same time, the receiving suction cup 23 is turned upward again, waiting for the placement of the explosion-proof cover.

[0041] The above steps are repeated so that each time the flip rod 22 flips, one cap can be assembled. During the process of cap assembly, the explosion-proof cover is also loaded simultaneously, thereby achieving full-station operation in the entire cap production process and improving work efficiency. In addition, each time the upward suction cup on the anti-collision rod absorbs the explosion-proof cover and flips it upward, after the explosion-proof cover is placed on the flip rod 22, each time the flip rod 22 flips, the explosion-proof cover is on the windward side, preventing the explosion-proof cover from falling and improving stability.

[0042] Reference Figure 1 and Figure 2 A rotary motor 60 is mounted on the workbench 10 and positioned between the two conveyor belts 312. The rotary motor 60 is connected to a galvanometer welder 40, driving the galvanometer welder 40 to steer. The galvanometer welder 40 is used to weld the top cover and the explosion-proof cover to form the cap. The galvanometer welder 40 utilizes high-speed scanning of the galvanometer to rapidly move the laser beam, completing the welding process. This machine offers advantages such as high welding speed, high precision, and excellent weld quality.

[0043] When the caps are assembled on the right conveyor belt, the right conveyor belt is started, driving the caps to move to the galvanometer welding machine 40 for welding and fixing. At the same time, the flip rod 22 is also flipped to the left conveyor belt, and the cap assembly work is completed on the left conveyor belt 312. Then, the left conveyor belt is started again, causing the caps to move to the galvanometer welding machine 40. At the same time, the rotary motor 60 is started to drive the galvanometer welding machine 40 to turn and weld the caps on the left conveyor belt 312. Due to the reciprocating rotation of the flip rod 22, the caps are assembled on the conveyor belts 312 on both sides in sequence, so that the galvanometer welding machine 40 can complete the welding work of the caps on both sides by turning left and right, and the operation is convenient and orderly.

[0044] The implementation principle of the sodium-ion battery cap welding device according to the embodiment of the present application is as follows: during operation, the receiving suction cup 23 on the flip rod 22 faces upward and is located above the left conveyor belt 312. The explosion-proof cover in the left explosion-proof cover receiving box 32 is placed upside down on the receiving suction cup 23. Then, the flip motor 21 is started to drive the flip rod 22 to rotate, causing the receiving suction cup 23 to turn to the right conveyor belt 312. At this time, the receiving suction cup 23 faces downward and inserts the absorbed explosion-proof cover into the top cover on the right conveyor belt 312. Because the flip rod 22 is flipped 180 degrees at this time, the explosion-proof cover on the receiving suction cup 23 is changed from being placed upside down to being placed upright, allowing the cap to be assembled in the forward direction.

[0045] When the receiving suction cup 23 is facing downward, the receiving suction cup 24 is turned upward. At this time, the explosion-proof cover in the right explosion-proof cover receiving box 32 is placed upside down on the receiving suction cup 24. Then, the flip motor 21 is started again, causing the flip rod 22 to reset, so that the receiving suction cup 24 is turned downward again, and the absorbed explosion-proof cover is inserted into the top cover on the left conveyor belt 312, completing the assembly of the cover. At the same time, the receiving suction cup 23 is turned upward again, waiting for the placement of the explosion-proof cover.

[0046] The above steps are repeated so that each time the flip rod 22 flips, one cap can be assembled. During the process of cap assembly, the explosion-proof cover is also loaded simultaneously, thereby achieving full-station operation in the entire cap production process and improving work efficiency. In addition, each time the upward suction cup on the anti-collision rod absorbs the explosion-proof cover and flips it upward, after the explosion-proof cover is placed on the flip rod 22, each time the flip rod 22 flips, the explosion-proof cover is on the windward side, preventing the explosion-proof cover from falling and improving stability.

[0047] The present application also discloses a welding method for a sodium ion battery cap welding device, comprising the following steps: S1. Place several explosion-proof covers upside down in the explosion-proof cover receiving box 32 in sequence, and place several top covers in the vibrating screen tray 311. The vibrating screen tray 311 allows the top covers to be moved onto the conveyor belt 312 in sequence. S2. Start the left drive assembly 331 to drive the pickup suction cup 332 to pick up the explosion-proof cover and move it toward the conveyor belt 312; S3. In the initial state, the flip rod 22 faces the conveyor belt 312 on the left. At this time, the receiving suction cup 23 faces upward, and the receiving suction cup 24 faces downward and is aligned with the conveyor belt 312 on the left. Then, the suction cup 332 is picked up and the explosion-proof cover is placed on the flip rod 22, and is fixed by the receiving suction cup 23. S4, the flip motor 21 drives the flip rod 22 to turn to the right conveyor belt 312. At this time, the receiving suction cup 23 is downwardly aligned with the right conveyor belt 312, and the receiving suction cup 24 is turned upward. The receiving suction cup 23 is downwardly facing so that the explosion-proof cover on the receiving suction cup 23 is inserted into the top cover on the right conveyor belt 312, thereby assembling the cap; S5, the right driving assembly 331 drives to pick up and absorb the explosion-proof cover and place it on the flip rod 22, and it is fixed by the receiving suction cup 24; S6: The flip motor 21 drives the flip rod 22 to reverse and reset, so that the receiving suction cup 24 carries the explosion-proof cover to the left conveyor belt. At this time, the receiving suction cup 24 faces downward and inserts the explosion-proof cover into the top cover on the left conveyor belt 312. At the same time, the receiving suction cup 23 faces upward to receive the explosion-proof cover brought by the left picking up suction cup 332. During the resetting process of the flip rod 22, the right conveyor belt 312 drives the assembled cap to move to the galvanometer welding position for welding and fixing the explosion-proof cover and the top cover; The left conveyor belt 312 receives the explosion-proof cap brought by the suction cup 24, so that the left conveyor belt 312 also has assembled caps. At this time, the left conveyor belt 312 is started again, and the rotating motor 60 is started at the same time, so that the galvanometer welding machine 40 rotates from the right conveyor belt 312 to the left conveyor belt 312 to weld the caps on the left conveyor belt 312. S7. Repeat the above steps to complete the welding of all caps.

[0048] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A sodium ion battery cap welding device, characterized in that: The invention comprises a working frame (10), an assembly device (20), a galvanometer welding machine (40) and two working mechanisms (30), wherein the working mechanism (30) is located on the working frame (10), the two working mechanisms (30) are arranged in an axisymmetric manner, the assembly device (20) is located between the two working mechanisms (30), the working mechanism (30) comprises a top cover conveying assembly (31) and an explosion-proof cover receiving box (32), the top cover conveying assembly (31) and the explosion-proof cover receiving box (32) are both arranged on the working frame (10), and the top cover conveying assembly (31) is located on one side of the explosion-proof cover receiving box (32), the top cover conveying assembly (31) is used to convey the top cover, the explosion-proof cover receiving box (32) is used to store the explosion-proof cover, the assembly device (20) is used to assemble the top cover and the explosion-proof cover together, and the galvanometer welding machine (40) is arranged on the working frame (10) and is used to weld the top cover and the explosion-proof cover to form a cap.

2. The sodium ion battery cap welding device according to claim 1, characterized in that: The top cover conveying assembly (31) comprises a vibrating screen plate (311) and a conveyor belt (312). The vibrating screen plate (311) is used to receive a plurality of top covers. The conveyor belt (312) is arranged on the working frame (10). The output end of the vibrating screen plate (311) is connected to the conveyor belt (312). The conveyor belt (312) can receive the top covers.

3. The sodium ion battery cap welding device according to claim 2, characterized in that: The conveyor belt (312) is provided with a plurality of grooves (3121), and the plurality of grooves (3121) are arranged at intervals along the length direction of the conveyor belt (312).

4. The sodium ion battery cap welding device according to claim 3, characterized in that: A limiting rod (50) is provided on the working frame (10). The limiting rod (50) is located at the output end of the vibrating screen plate (311) and above the conveyor belt (312). When the top cover is located in the groove (3121), it can pass under the limiting rod (50).

5. The sodium ion battery cap welding device according to claim 2, characterized in that: The assembling device (20) comprises a flip motor (21), a flip rod (22), a receiving suction cup (23) and a receiving suction cup (24); the flip motor (21) is arranged on the work frame (10); the flip motor (21) is located between the two conveyor belts (312); the output end of the flip motor (21) is fixed to one end of the flip rod (22); the flip motor (21) is used to drive the flip rod (22) to flip above the conveyor belt (312); the receiving suction cup (23) and the receiving suction cup (24) are both located on one end of the flip rod (22) away from the flip motor (21); the receiving suction cup (23) and the receiving suction cup (24) are respectively arranged on both sides of the flip rod (22); the receiving suction cup (23) and the receiving suction cup (24) are used to adsorb the explosion-proof cover.

6. The sodium ion battery cap welding device according to claim 1, characterized in that: The working mechanism (30) further comprises a picking device (33), the picking device (33) comprising a driving assembly (331) and a picking suction cup (332), the driving assembly (331) being arranged on the working frame (10), the picking suction cup (332) being connected to the driving assembly (331), and the driving assembly (331) being used to drive the picking disk to suck the explosion-proof cover in the explosion-proof cover receiving box (32).

7. The sodium ion battery cap welding device according to claim 6, characterized in that: The driving assembly (331) includes a moving rod (3311), a moving motor (3312), a moving block (3313) and a telescopic member (3314). The moving rod (3311) is horizontally arranged on the working frame (10), and the end of the moving rod (3311) is rotatably connected to the working frame (10). The moving motor (3312) is arranged on the working frame (10). The output end of the moving motor (3312) is coaxially fixed with one end of the moving rod (3311) and is used to drive the moving rod (3311) rotates, the moving block (3313) is sleeved on the moving rod (3311) and is threadedly connected to the moving rod (3311), the moving block (3313) is slidably connected to the working frame (10), and when the moving rod (3311) rotates, it is used to drive the moving block (3313) to move along the length direction of the moving rod (3311), the telescopic member (3314) is provided on the moving block (3313), and the telescopic member (3314) is connected to the picking suction cup (332).

8. The sodium ion battery cap welding device according to claim 7, characterized in that: The telescopic member (3314) includes a telescopic cylinder (33141) and a lifting cylinder (33142), wherein the telescopic cylinder (33141) is provided on the moving block (3313), and the lifting cylinder (33142) is connected to the output end of the telescopic cylinder (33141), and the telescopic cylinder (33141) is used to drive the lifting cylinder (33142) to move horizontally, and the moving direction of the lifting cylinder (33142) is perpendicular to the moving direction of the moving block (3313), and the picking suction cup (332) is connected to the output end of the lifting cylinder (33142), and the lifting cylinder (33142) is used to drive the picking suction cup (332) to move up and down.

9. The sodium ion battery cap welding device according to claim 2, characterized in that: A rotating motor (60) is provided on the work frame (10), and the rotating motor (60) is located between the two conveyor belts (312). The rotating motor (60) is connected to the galvanometer welding machine (40) and is used to drive the galvanometer welding machine (40) to turn.

10. A welding method for a sodium ion battery cap welding device, using the sodium ion battery cap welding device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Several explosion-proof covers are placed upside down in the explosion-proof cover receiving box (32) in sequence, and several top covers are placed in the vibrating screen plate (311). The vibrating screen plate (311) causes the top covers to move sequentially onto the conveyor belt (312); S2, start the driving assembly (331) on the left side to drive the pickup suction cup (332) to suck up the explosion-proof cover and move it toward the conveyor belt (312); S3. In the initial state, the flip rod (22) faces the conveyor belt (312) on the left, the receiving suction cup (23) faces upward, the receiving suction cup (24) faces downward and is aligned with the conveyor belt (312) on the left, and then the suction cup (332) is picked up to place the explosion-proof cover on the flip rod (22), and the receiving suction cup (23) adsorbs and fixes it; S4, the flip motor (21) drives the flip rod (22) to turn to the right conveyor belt (312), at which time the receiving suction cup (23) is downwardly aligned with the right conveyor belt (312), and the receiving suction cup (24) becomes upward, and the receiving suction cup (23) is downwardly facing so that the explosion-proof cover on the receiving suction cup (23) is inserted into the top cover on the right conveyor belt (312), thereby assembling the cap; S5, the right driving assembly (331) drives to pick up and absorb the explosion-proof cover and place it on the flip rod (22), and the receiving suction cup (24) adsorbs and fixes it; S6, the flip motor (21) drives the flip rod (22) to reverse and reset, so that the receiving suction cup (24) brings the explosion-proof cover to the left conveyor belt. At this time, the receiving suction cup (24) faces downward and inserts the explosion-proof cover into the top cover on the left conveyor belt (312). At the same time, the receiving suction cup (23) faces upward to receive the explosion-proof cover brought by the left picking suction cup (332); During the resetting process of the flip rod (22), the right conveyor belt (312) drives the assembled cap to move to the galvanometer welding position to weld and fix the explosion-proof cover and the top cover; The left conveyor belt (312) receives the explosion-proof cover brought by the suction cup (24), so that the left conveyor belt (312) also has assembled caps. At this time, the left conveyor belt (312) is started again, and the rotating motor (60) is started at the same time, so that the galvanometer welding machine (40) is turned from the right conveyor belt (312) to the left conveyor belt (312) to weld the caps on the left conveyor belt (312); S7. Repeat the above steps to complete the welding of all caps.

Images