Cap assembling device for cylindrical lithium battery forming

Abstract

The invention relates to the technical field of lithium battery manufacturing, in particular to a cylindrical lithium battery forming cap assembling device which comprises a box body, a supporting plate is fixedly connected to one side of the box body, a welding table is fixedly connected to the upper surface of the supporting plate, a welding gun is slidably connected to one side of the box body, and an intermittent material delivering mechanism is arranged on one side of the box body. The intermittent delivery mechanism comprises a connecting rod fixedly connected to the outer surface of the welding gun, a pawl is rotationally connected to the outer surface of the top of one side of the connecting rod, a supporting piece is fixedly connected to the upper surface of one side of the box body, and a ratchet wheel is rotationally connected to the top of the supporting piece. The intermittent material conveying mechanism can sequentially convey the battery blocks when moving up and down along with the welding gun, so that the welding gun can accurately position a welding point of each battery block, the welding accuracy and consistency are ensured, the problems of poor welding, insufficient welding or excessive welding and the like are avoided, and the welding quality is improved. Therefore, the overall quality and reliability of the battery block are improved.

Description

Technical Field

[0001] The invention relates to the technical field of lithium battery manufacturing, and in particular to a cap assembling device for cylindrical lithium battery molding. Background Art

[0002] With the rapid development of the new energy industry, the demand for lithium batteries as important energy storage devices is growing. Cylindrical lithium batteries are widely used in electric vehicles, power tools, energy storage systems and other fields due to their high energy density, long cycle life and relatively low cost. As an important component of cylindrical lithium batteries, the assembly quality of the cap directly affects the sealing, safety and service life of the battery.

[0003] The traditional cap assembly method mainly relies on workers manually taking the battery for assembly. However, manual operation makes it difficult to ensure that the welding position of the battery and the cap is completely consistent, which can easily cause offset or misalignment, affecting the welding quality. The cap can also easily fall off during the use of the battery, affecting the overall performance and safety of the battery.

[0004] Therefore, the present invention proposes a cap assembly device for cylindrical lithium battery molding to make up for and improve the shortcomings of the prior art. Summary of the invention

[0005] In view of the defects existing in the prior art, the present invention provides a cap assembly device for cylindrical lithium battery molding, which can effectively solve the above-mentioned technical problems.

[0006] The technical implementation scheme of the present invention is: a cap assembly device for cylindrical lithium battery molding, comprising a box body, a support plate is fixedly connected to one side of the box body, a welding table is fixedly connected to the upper surface of the support plate, a welding gun is slidably connected to one side of the box body, and an intermittent material delivery mechanism is provided on one side of the box body;

[0007] The intermittent material delivery mechanism includes a connecting rod fixedly connected to the outer surface of the welding gun, a pawl is rotatably connected to the outer surface of the top of one side of the connecting rod, a support is fixedly connected to the upper surface of one side of the box body, a ratchet is rotatably connected to the top of the support, one end of the pawl is snap-fitted with the outer surface of the ratchet, one end of the pawl is fixedly connected to a rotating disk, a plurality of arc grooves are arranged in a ring shape on the outer surface of the rotating disk, a battery block is placed on the outer surface of the rotating disk, and a battery cap is placed on the upper surface of the welding table.

[0008] More preferably, a limiting rod is fixedly connected to the upper surface of one side of the box body, the middle part of the bottom end of the connecting rod is slidably connected to the outer surface of the limiting rod, a torsion spring is fixedly sleeved on the outer surface of the top of one end of the connecting rod, and one end of the torsion spring is fixedly connected to one side of the pawl.

[0009] More preferably, a material discharging rack is fixedly connected to the upper surface of one side of the box body, one side of the material discharging rack is wide at the top and narrow at the bottom, one side of the material discharging rack is rotatably connected to a closing door, the overall closing door is wide at the top and narrow at the bottom, one side of the material discharging rack is slidably connected to a locking block, and one side of the locking block is snap-fitted with the outer surface of one end of the closing door.

[0010] More preferably, it also includes a conveying device arranged on one side of the box body, the conveying state includes a slide fixedly connected to one side of the box body, one end of the slide is fixedly connected to a discharge block, the inner side of the slide is communicated with the inner side of the discharge block, the upper surface of the discharge block is provided with a conveying groove, one side of the bottom of the discharge block is fixedly connected to a plurality of guide rods, one side of the welding gun is fixedly connected to a guide groove, the inner side of the discharge block is slidably connected to a push plate, the bottom of the push plate is slidably connected between the outer surfaces of the guide rods, one side of the guide groove is provided with a U-shaped groove, the U-shaped groove provided on one side of the guide groove is inclined, and the outer surface of one side of the push plate is slidably connected to the U-shaped groove on one side of the guide groove.

[0011] More preferably, the U-shaped groove on one side of the guide groove is pressed and matched with the outer surface of one side of the push plate, one side of the push plate is arc-shaped, and the arc-shaped side of the push plate is pressed and matched with the outer surface of the battery cap.

[0012] More preferably, a compression spring is fixedly sleeved on the outer surface of the guide rod, and one end of the compression spring is fixedly connected to one side of the push plate.

[0013] More preferably, it also includes a pushing mechanism arranged on the upper surface of one side of the box body, the pushing mechanism includes a limiting rod fixedly connected to the upper surface of one side of the box body, a guide plate is slidably connected between the outer surfaces of the limiting rod, the upper surface of the guide plate is inclined, and the outer surfaces of the limiting rods are fixedly sleeved with support springs, and the tops of the support springs are fixedly connected to the bottom of the guide plates.

[0014] More preferably, the inclined surface on the upper surface of the guide plate is pressed and fitted with the outer surface of the battery block, and one end of the connecting rod is pressed and fitted with one end of the guide plate.

[0015] More preferably, it also includes a buffer mechanism arranged on one side of the box body, the buffer mechanism includes a collection rack detachably connected to one side of the box body, the inner side of one end of the collection rack is arc-shaped, a buffer plate is slidably connected between the inner sides of the collection rack, the outer surfaces of both sides of the collection rack are fixedly sleeved with connecting springs, the tops of the connecting springs are fixedly connected to the lower surface of the buffer plate, the elastic coefficient between the connecting springs is the same as the gravity of the battery block, a plurality of pins are slidably connected to the upper surface of one side of the box body, a connecting block is fixed between the tops of the pins, the outer surfaces of the pins are fixedly sleeved with linear springs, and the tops of the linear springs are fixedly connected to the lower surface of the connecting block.

[0016] More preferably, one side of the collection rack is arc-shaped, one side of the bottom of the pin is inclined, the inclined surface of the bottom of the pin is squeezed together with the arc surface of one side of the collection rack, and one side of the collection rack is snap-fitted with one side of the pin.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] 1. The present invention can transfer the battery blocks in sequence as the welding gun moves up and down through the intermittent material delivery mechanism, so that the welding gun can accurately locate the welding point of each battery block, ensure the accuracy and consistency of welding, avoid problems such as poor welding, cold welding or excessive welding, thereby improving the overall quality and reliability of the battery block.

[0019] 2. The present invention can automatically push the battery cap to the predetermined welding position through the conveying device, which can significantly reduce the time and labor of manual operation, speed up the welding speed, and improve the production efficiency of the entire production line. In addition, the automatic pushing can enable the battery cap to be delivered to the welding area in the correct position and posture, thereby avoiding welding quality problems caused by position deviation.

[0020] 3. The present invention can quickly and accurately remove the welded battery blocks from the rotating disk through the push-up mechanism, so that the flow of battery blocks on the production line is smoother, reducing manual handling and waiting time, helping to optimize the production process and improve the smoothness and efficiency of the production line.

[0021] 4. The buffer mechanism of the present invention can buffer and collect the processed battery blocks, thereby absorbing and dispersing the impact force caused by the falling of the battery blocks, effectively protecting the battery blocks from damage caused by direct impact, maintaining the integrity of the battery block structure and extending the service life of the battery blocks. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0023] Figure 2It is a three-dimensional structural schematic diagram of the welding gun, connecting rod, material placing rack and other components of the present invention.

[0024] Figure 3 It is a schematic diagram of the three-dimensional structure of the limiting rod, the supporting member, the ratchet and other components of the present invention.

[0025] Figure 4 It is a schematic diagram of the three-dimensional structure of the ratchet, pawl, rotating disk and other components of the present invention.

[0026] Figure 5 It is a schematic diagram of the three-dimensional structure of the battery cap, chute, material discharge block and other components of the present invention.

[0027] Figure 6 It is a schematic diagram of the three-dimensional structure of the material discharging block, the guide rod, the guide groove and other components of the present invention.

[0028] Figure 7 It is an exploded view of the three-dimensional structure of components such as the guide groove and the push plate of the present invention.

[0029] Figure 8 It is a schematic diagram of the three-dimensional structure of the material discharge block and the guide rod of the present invention.

[0030] Fig. 9 It is a schematic diagram of the three-dimensional structure of the guide plate, the limit rod, the support spring and other components of the present invention.

[0031] Fig.10 It is a schematic diagram of the three-dimensional structure of the connecting rod and the guide plate of the present invention.

[0032] Fig.11 It is a schematic diagram of the three-dimensional structure of the guide plate of the present invention.

[0033] Fig.12 It is a schematic diagram of the three-dimensional structure of the guide plate, buffer plate, collection rack and other components of the present invention.

[0034] Fig.13 It is a schematic diagram of the three-dimensional structure of the buffer plate, the collecting frame and the connecting spring of the present invention.

[0035] Fig.14 It is a schematic diagram of the three-dimensional structure of the components such as the latch, the linear spring and the connecting block of the present invention.

[0036] The markings of the components in the accompanying drawings are as follows: 1-box, 11-support plate, 12-welding table, 13-welding gun, 14-connecting rod, 15-discharge rack, 16-closing door, 17-locking block, 18-limiting rod, 19-support, 110-ratchet, 111-pawl, 112-rotating disk, 113-battery block, 114-torsion spring, 115-cap, 2-slide, 21-discharge block, 211-guide rod, 22-guide groove, 23-push plate, 24-compression spring, 3-guide plate, 31-limiting rod, 32-support spring, 4-buffer plate, 41-collection rack, 42-connecting spring, 43-latch, 44-linear spring, 45-connecting block. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not 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.

[0038] The present invention will be further described below in conjunction with the embodiments.

[0039] Embodiments of the present invention

[0040] refer to Figures 1 to 4 As shown, a cap assembly device for cylindrical lithium battery molding includes a box body 1, a support plate 11 is fixedly connected to the right side of the box body 1, a welding table 12 is fixedly connected to the upper surface of the support plate 11, and a welding gun 13 is slidably connected to the right side of the box body 1. The welding gun 13 is used to slide up and down on the right side of the box body 1. This technology is a prior art and will not be elaborated in detail in this embodiment.

[0041] In the traditional processing method, workers mainly assemble by manual taking. However, it is difficult to ensure that the welding position is completely consistent through manual operation, which can easily cause offset or misalignment, affecting the welding quality. Therefore, an intermittent feeding mechanism can be used to assist in processing.

[0042] The intermittent material delivery mechanism includes a connecting rod 14 fixedly connected to the outer surface of the welding gun 13, the welding gun 13 is used to drive the connecting rod 14 to move, the upper surface of the right side of the box body 1 is fixedly connected with a limiting rod 18, the middle part of the bottom end of the connecting rod 14 is slidably connected to the outer surface of the limiting rod 18, the limiting rod 18 is used to limit the up and down sliding position of the connecting rod 14, the outer surface of the top of the right end of the connecting rod 14 is rotatably connected with a pawl 111, the outer surface of the top of the right side of the connecting rod 14 is fixedly sleeved with a torsion spring 114, the front end of the torsion spring 114 is fixedly connected to the rear side of the pawl 111, the torsion spring 114 is used to drive the pawl 111 to reset and move, the upper surface of the right side of the box body 1 is fixedly connected with a support member 19, the top of the support member 19 is rotatably connected with a ratchet 110, and the left end of the pawl 111 is squeezed and fitted with the outer surface of the ratchet 110.

[0043] When the pawl 111 moves downward, it can drive the ratchet 110 to rotate clockwise, and when the pawl 111 moves upward, the left end of the pawl 111 will not be engaged with the outer surface of the ratchet 110, so that the ratchet 110 cannot rotate. The front side of the ratchet 110 is fixedly connected to a rotating disk 112, and when the ratchet 110 rotates clockwise, it is used to drive the rotating disk 112 to rotate at the same time. A battery block 113 is placed on the upper surface of the rotating disk 112, and the rotating disk 112 is used to drive the battery block 113 to move. A battery cap 115 is placed on the upper surface of the welding table 12, and the welding table 12 is used to support the battery cap 115, and the welding gun 13 is used to weld between the battery block 113 and the battery cap 115.

[0044] A material rack 15 is fixedly connected to the upper surface of the box body 1, and the material rack 15 is used to stack the battery blocks 113. The front side of the material rack 15 is rotatably connected to a closing door 16, and the closing door 16 is used to block the battery blocks 113 inside the material rack 15. The right side of the material rack 15 is slidably connected to a locking block 17, and the bottom of the locking block 17 is snap-fitted with the right side of the closing door 16. The locking block 17 is used to lock the closing door 16 to prevent the closing door 16 from opening accidentally.

[0045] The transmission principle of the welding gun 13 through the intermittent material delivery mechanism in this embodiment is as follows: in the initial state, the bottom of the locking block 17 is in a clamping state with the right side of the closing door 16, and the torsion spring 114 is in a naturally relaxed state. When the staff needs to process the battery block 113, they can first lift the locking block 17 upward to disengage the bottom of the locking block 17 from the right side of the closing door 16. At this time, the staff can open the closing door 16, so that the battery block 113 to be processed can be placed in the discharge rack 15. Since the right side of the discharge rack 15 is wide at the top and narrow at the bottom, and the outer surface of the rotating disk 112 is annular with six arc grooves, the battery block 113 inside the discharge rack 15 can fall into one of the arc grooves of the rotating disk 112, and the staff can place the battery block 113 to be processed. The processed battery cap 115 is placed on the upper surface of the welding table 12. At this time, the welding gun 13 can move downward, and when the welding gun 13 moves downward, it can drive the connecting rod 14 to move at the same time. When the outer surface of the limiting rod 18 moves downward, the connecting rod 14 can drive the pawl 111 to move at the same time. When the pawl 111 moves downward, it will engage with the outer surface of the ratchet 110, causing the pawl 111 to drive the ratchet 110 to rotate clockwise. The clockwise rotation of the ratchet 110 will drive the rotating disk 112 to rotate by one-sixth, and when the rotating disk 112 rotates by one-sixth, it can drive the battery block 113 to rotate at the same time, causing the front end of the battery block 113 to overlap with the upper surface of the battery cap 115, and as the welding gun 13 continues to move downward, it can weld the battery block 113 and the battery cap 115.

[0046] And as the rotating disk 112 drives the battery block 113 to rotate one-sixth clockwise, the rotating disk 112 inside the closed door 16 can fall into another arc groove on the outer surface of the rotating disk 112, so that the battery blocks 113 can be transferred one by one. Not only can the welding gun 13 accurately locate the welding points of each battery block 113, but it can also ensure the accuracy and consistency of welding, avoid problems such as poor welding, cold welding or excessive welding, thereby improving the overall quality and reliability of the battery block 113.

[0047] When the welding gun 13 has finished welding the front side of the battery block 113, the welding gun 13 can drive the connecting rod 14 to slide upwards. When the connecting rod 14 slides upwards on the outer surface of the limiting rod 18, it will drive the pawl 111 to move at the same time. When the pawl 111 moves upwards, the left end of the pawl 111 will be disengaged from the outer surface of the ratchet 110, and the ratchet 110 will cause the pawl 111 to rotate slightly counterclockwise during the sliding process of the pawl 111 upwards. When the pawl 111 rotates counterclockwise, it can drive the torsion spring 114 to be slightly compressed. As the connecting rod 14 continues to move, the pawl 111 will move upwards. The torsion spring 114, which is in a slightly compressed state when driving the pawl 111 to move upward, can drive the pawl 111 to swing slightly clockwise, allowing the left end of the pawl 111 to be re-engaged with the outer surface of the ratchet 110, so that when the connecting rod 14 drives the pawl 111 to move upward, the ratchet 110 cannot drive the battery block 113 to move through the rotating disk 112. Only when the connecting rod 14 drives the pawl 111 to move downward can the rotating disk 112 drive the battery block 113 to move to the right, thereby enabling the battery block 113 to move in the correct direction.

[0048] When welding the battery block 113, the staff is required to place the battery caps 115 one by one on the upper surface of the welding table 12, which not only increases the working time but also reduces the overall production efficiency. In addition, the manual placement may easily lead to inaccurate positioning of the battery caps 115, thereby affecting the matching degree of the combination between the battery caps 115 and the battery block 113, and further affecting the sealing and safety of the battery block 113. Therefore, a conveying device can be used to automatically push the battery caps 115.

[0049] refer to Figures 5 to 8As shown, a cap assembly device for cylindrical lithium battery molding, the conveying device includes a chute 2 fixedly connected to the right side of the box body 1, the rear end of the right side of the chute 2 is fixedly connected to a discharge block 21, the rear end of the right side of the chute 2 and the front end of the discharge block 21 are mutually connected, and a conveying groove is opened on the upper surface of the discharge block 21, and the chute 2 and the discharge block 21 are used to convey the battery cap 115, and the front side of the bottom of the discharge block 21 is fixedly connected to two guide rods 211, the inner side of the discharge block 21 is slidably connected to a push plate 23, and the front end of the push plate 23 is slidably connected between the outer surfaces of the guide rods 211, and the outer surfaces of the guide rods 211 are fixedly sleeved with compression springs 24, and the front ends of the compression springs 24 are fixedly sleeved between They are all fixedly connected to the rear side of the bottom of the push plate 23, and the compression spring 24 is used to drive the push plate 23 to slide forward. The front side of the right end of the welding gun 13 is fixedly connected with a guide groove 22, and the front side of the guide groove 22 is provided with a U-shaped groove. The welding gun 13 is used to drive the guide groove 22 to move at the same time, and the outer surface of the left end of the push plate 23 is slidably connected to the U-shaped groove on the front side of the guide groove 22. The outer surface of the left end of the push plate 23 is squeezed and matched with the U-shaped groove on the front side of the guide groove 22. When the guide groove 22 moves upward, it is used to drive the push plate 23 to move forward. The rear side of the push plate 23 is arc-shaped, and the arc-shaped rear side of the push plate 23 is squeezed and matched with the outer surface of the battery cap 115, and the push plate 23 is used to drive the battery cap 115 to move backward.

[0050] The conveying principle of the battery cap 115 by the conveying device in this embodiment is as follows: in the initial state, the outer surface of the left end of the push plate 23 is slidably connected to the bottom of the U-shaped groove of the guide groove 22, and the compression spring 24 is in a compressed state. When the battery block 113 needs to be welded, the staff can insert multiple battery caps 115 from the front end of the slide groove 2, so that the battery caps 115 can be arranged in sequence inside the slide groove 2, and the battery caps 115 can slide into the discharge block 21 in sequence. At this time, the staff can start the welding gun 13 to move the welding gun 13 downward, and when the welding gun 13 moves downward, it will drive the guide groove 22 to move at the same time, and the U-shaped groove of the guide groove 22 will move downward on the outer surface of the left side of the push plate 23, and the compression spring 24 in a compressed state can drive the push plate 23 to move forward. At this time, the battery cap 115 inside the discharge block 21 can slide downward.

[0051] As the welding gun 13 drives the guide groove 22 to move upward, the U-shaped groove of the guide groove 22 will squeeze the outer surface of the left end of the push plate 23, causing the push plate 23 to slide backward. When the push plate 23 slides backward inside the discharge block 21, the compression spring 24 can be moved to a compressed state, and when the push plate 23 slides backward, the battery cap 115 inside the discharge block 21 can be pushed forward, so that the battery cap 115 can be placed on the upper surface of the welding table 12. As the welding gun 13 moves up and down again, another battery cap 115 can be placed on the upper surface of the welding table 12 for welding, so that the battery cap 115 can be automatically pushed to the predetermined welding position, which can significantly reduce the time and labor of manual operation, speed up the welding speed, and improve the production efficiency of the entire production line. In addition, the automatic push can enable the battery cap 115 to be delivered to the welding area in the correct position and posture, thereby avoiding welding quality problems caused by position deviation.

[0052] When the welding of the battery block 113 is completed, the staff needs to collect the battery blocks 113 in the rotating disk 112. Since the rotating disk 112 is likely to carry residual electricity or heat energy after welding, there is a risk of burns when collecting the battery blocks 113 on the rotating disk 112. Therefore, a lifting mechanism can be used to take out the battery blocks 113.

[0053] refer to Figures 9 to 11 As shown, a cap assembly device for cylindrical lithium battery molding, the pushing mechanism includes a limit rod 31 fixedly connected to the upper surface of the right side of the box body 1, a guide plate 3 is slidably connected between the upper surfaces of the limit rod 31, the top of the guide plate 3 is inclined, the inclined surface of the top of the guide plate 3 is squeezed and matched with the outer surface of the battery block 113, the inclined surface of the top of the guide plate 3 is used to take out the battery block 113 in the arc groove of the rotating disk 112, the outer surface of the limit rod 31 is fixedly sleeved with a support spring 32, the top of the support spring 32 is fixedly connected to the bottom of the guide plate 3, the support spring 32 is used to drive the guide plate 3 to reset and move, the left side of the rear end of the guide plate 3 is squeezed and matched with the right end of the connecting rod 14, and the connecting rod 14 is used to drive the guide plate 3 to move.

[0054] The pushing principle of the battery block 113 by the pushing mechanism in this embodiment is as follows: in the initial state, the support spring 32 is in a naturally relaxed state. Since the right end of the connecting rod 14 is squeezed and fitted with the left end of the rear side of the guide plate 3, as the connecting rod 14 moves downward, it can drive the guide plate 3 to move at the same time, and when the guide plate 3 moves downward between the outer surfaces of the limit rod 31, it can move the support spring 32 to a compressed state, and when the guide plate 3 moves downward, the rotating disk 112 can drive the welded battery block 113 to rotate one-sixth clockwise, and at this time, the outer surfaces of the front and rear ends of the battery block 113 can contact the inclined surface at the top of the guide plate 3.

[0055] As the connecting rod 14 moves upward, the right end of the connecting rod 14 is disengaged from the left end on the rear side of the guide plate 3. At this time, the support spring 32 in a compressed state will drive the guide plate 3 to move up and down between the outer surfaces of the limit rod 31. When the guide plate 3 moves upward, it can squeeze the outer surfaces of the two ends of the battery block 113, so that the battery block 113 can be taken out from the arc groove of the rotating disk 112, so that the flow of the battery block 113 on the production line is smoother, which not only prevents the staff from being burned by the heat of the battery block 113, but also reduces the time of manual handling and waiting, which helps to optimize the production process and improve the fluency and efficiency of the production line.

[0056] As the battery block 113 is taken out from the arc groove of the rotating disk 112, the battery block 113 will roll to the right and fall downward, which may easily cause collisions between the battery blocks 113, damaging the internal structure of the battery block 113 and affecting the performance and safety of the battery block 113. Therefore, a buffer mechanism can be used to provide buffer protection for the battery block 113.

[0057] refer to Figures 9 to 11 As shown, a cap assembly device for forming a cylindrical lithium battery, the buffer mechanism includes a collection rack 41 detachably connected to the right side of the box body 1, the inner side of the right end of the collection rack 41 is arc-shaped, and the arc-shaped inner side of the right end of the collection rack 41 is used to allow the battery block 113 to pass through, and the inner side of the collection rack 41 is slidably connected to a buffer plate 4, and the buffer plate 4 is used to support the battery block 113. The outer surfaces of both ends of the collection rack 41 are fixedly sleeved with connecting springs 42, and the top of the connecting spring 42 is fixedly connected to the lower surface of the buffer plate 4, and the connecting spring 42 is used to buffer the descent of the buffer plate 4. Two latches 43 are slidably connected to the upper surface of the right side of the body 1, and the right sides of the latches 43 are inclined. The inclined surface on the right side of the latch 43 is squeezed and fitted with the left side of the collection rack 41. The left side of the latch 43 is used to clamp the collection rack 41, and the top of the latch 43 is fixedly connected with a connecting block 45, which is used to drive the latch 43 to move up and down. The outer surface of the latch 43 is fixedly sleeved with a linear spring 44, and the top of the linear spring 44 is fixedly connected to the lower surface of the connecting block 45, which is used to drive the latch 43 and the connecting block 45 to reset and move.

[0058] The buffering principle of the battery block 113 by the buffer mechanism in this embodiment is as follows: in the initial state, the connecting spring 42 and the linear spring 44 are in the initial state, and as the guide plate 3 moves upward, the processed battery block 113 can be ejected from the arc groove on the outer surface of the rotating disk 112. At this time, the battery block 113 can roll to the right on the inclined surface at the top of the guide plate 3. Since the distance between the right side of the guide plate 3 and the collection rack 41 is smaller than the diameter of the battery block 113, the battery block 113 will be located on the right side of the inclined surface at the top of the guide plate 3. When the guide plate 3 moves downward, it can drive the battery block 113 to move at the same time. The battery block 113 can then slide to the right so that the outer surface of the battery block 113 fits into the arc groove on the inner side of the collection rack 41. Since the distance between the arc groove on the inner side of the collection rack 41 and the guide plate 3 is greater than the diameter of the battery block 113, the battery block 113 can fall into the upper surface of the buffer plate 4 on the inner side of the collection rack 41, so that the battery block 113 can be collected and buffered, thereby absorbing and dispersing the impact force caused by the falling of the battery block 113, effectively protecting the battery block 113 from damage caused by direct impact, maintaining the structural integrity of the battery block 113 and extending the service life of the battery block 113.

[0059] And since the elastic coefficient of the connecting spring 42 is the same as the weight of the battery block 113, the weight of the battery block 113 can drive the connecting spring 42 to compress the distance of one battery block 113 downward through the buffer plate 4, so that when another battery block 113 slides down from the guide plate 3, the falling distance can be reduced to protect the battery block 113.

[0060] When the inner side state of the collection rack 41 is completed, the staff can lift the connecting block 45 upwards. When the connecting block 45 moves upwards, it will drive the latch 43 to move at the same time, and when the latch 43 moves upwards, it will move the linear spring 44 to a stretched state. After the latch 43 moves upwards, the staff can pull the collection rack 41 containing the battery block 113 to the right. When the staff loosens the connecting block 45, the linear spring 44 in a stretched state can drive the latch 43 and the connecting block 45 to move downward to reset.

[0061] After the battery block 113 inside the collection rack 41 is taken out, the staff can push the collection rack 41 to the left again for placement. When the collection rack 41 moves to the left, the arc surface at the left end of the collection rack 41 will fit with the inclined surface of the latch 43 and push the latch 43 upward. The upward movement of the latch 43 will drive the linear spring 44 to move to a stretched state. As the latch 43 moves upward, when the collection rack 41 is pushed to the left, the arc surface on the left side of the collection rack 41 will disengage from the inclined surface of the latch 43, and the linear spring 44 in a stretched state will drive the latch 43 to move downward. After the latch 43 moves downward, it can re-engage the collection rack 41, so that the collection rack 41 can collect the battery blocks 113.

[0062] Although the present disclosure has been shown and described with reference to specific exemplary embodiments of the present disclosure, it should be understood by those skilled in the art that various changes in form and details may be made to the present disclosure without departing from the spirit and scope of the present disclosure as defined by the appended claims and their equivalents. Therefore, the scope of the present disclosure should not be limited to the above-mentioned embodiments, but should be determined not only by the appended claims, but also by the equivalents of the appended claims.

Claims

1. A cap assembly device for forming a cylindrical lithium battery, comprising a box body (1), a support plate (11) fixedly connected to one side of the box body (1), a welding table (12) fixedly connected to the upper surface of the support plate (11), and a welding gun (13) slidably connected to one side of the box body (1), characterized in that: An intermittent material delivery mechanism is provided on one side of the box body (1); The intermittent material delivery mechanism comprises a connecting rod (14) fixedly connected to the outer surface of the welding gun (13), the outer surface of the top of one side of the connecting rod (14) is rotatably connected to a pawl (111), the upper surface of one side of the box body (1) is fixedly connected to a support member (19), the top of the support member (19) is rotatably connected to a ratchet (110), one end of the pawl (111) is snap-fitted with the outer surface of the ratchet (110), one end of the pawl (111) is fixedly connected to a rotating disk (112), the outer surface of the rotating disk (112) is annularly provided with a plurality of arc grooves, a battery block (113) is placed on the outer surface of the rotating disk (112), and a battery cap (115) is placed on the upper surface of the welding table (12).

2. A cylindrical lithium battery molding cap assembly device according to claim 1, characterized in that: A limiting rod (18) is fixedly connected to the upper surface of one side of the box body (1), the middle part of the bottom end of the connecting rod (14) is slidably connected to the outer surface of the limiting rod (18), and a torsion spring (114) is fixedly sleeved on the outer surface of the top of one end of the connecting rod (14), and one end of the torsion spring (114) is fixedly connected to one side of the pawl (111).

3. A cylindrical lithium battery molding cap assembly device according to claim 2, characterized in that: A material discharging rack (15) is fixedly connected to the upper surface of one side of the box body (1), one side of the material discharging rack (15) is wide at the top and narrow at the bottom, one side of the material discharging rack (15) is rotatably connected to a closing door (16), the closing door (16) is wide at the top and narrow at the bottom as a whole, one side of the material discharging rack (15) is slidably connected to a locking block (17), one side of the locking block (17) is snap-fitted with the outer surface of one end of the closing door (16).

4. A cylindrical lithium battery molding cap assembly device according to claim 1, characterized in that: The invention also comprises a conveying device arranged on one side of the box body (1), wherein the conveying state comprises a slide groove (2) fixedly connected to one side of the box body (1), one end of the slide groove (2) is fixedly connected to a discharge block (21), the inner side of the slide groove (2) and the inner side of the discharge block (21) are mutually connected, the upper surface of the discharge block (21) is provided with a conveying groove, one side of the bottom of the discharge block (21) is fixedly connected to a plurality of guide rods (211), one side of the welding gun (13) is fixedly connected to a guide groove (22), the inner side of the discharge block (21) is slidably connected to a push plate (23), the bottom of the push plate (23) is slidably connected between the outer surfaces of the guide rods (211), one side of the guide groove (22) is provided with a U-shaped groove, the U-shaped groove provided on one side of the guide groove (22) is inclined, and the outer surface of one side of the push plate (23) is slidably connected to the U-shaped groove on one side of the guide groove (22).

5. A cylindrical lithium battery molding cap assembly device according to claim 4, characterized in that: The U-shaped groove on one side of the guide groove (22) is pressed and matched with the outer surface of one side of the push plate (23); one side of the push plate (23) is in an arc shape; and the arc shape on one side of the push plate (23) is pressed and matched with the outer surface of the battery cap (115).

6. A cylindrical lithium battery molding cap assembly device according to claim 5, characterized in that: The outer surface of the guide rod (211) is fixedly sleeved with a compression spring (24), and one end of the compression spring (24) is fixedly connected to one side of the push plate (23).

7. A cylindrical lithium battery molding cap assembly device according to claim 1, characterized in that: The invention also comprises a pushing mechanism arranged on the upper surface of one side of the box body (1), the pushing mechanism comprising a limiting rod (31) fixedly connected to the upper surface of one side of the box body (1), a guide plate (3) being slidably connected between the outer surfaces of the limiting rod (31), the upper surface of the guide plate (3) being inclined, a supporting spring (32) being fixedly sleeved on the outer surface of the limiting rod (31), the top of the supporting spring (32) being fixedly connected to the bottom of the guide plate (3).

8. A cylindrical lithium battery molding cap assembly device according to claim 7, characterized in that: The inclined surface of the upper surface of the guide plate (3) is pressed and matched with the outer surface of the battery block (113), and one end of the connecting rod (14) is pressed and matched with one end of the guide plate (3).

9. A cylindrical lithium battery molding cap assembly device according to claim 1, characterized in that: The invention also comprises a buffer mechanism arranged on one side of the box body (1), the buffer mechanism comprising a collection rack (41) detachably connected to one side of the box body (1), the inner side of one end of the collection rack (41) being in an arc shape, a buffer plate (4) being slidably connected between the inner sides of the collection rack (41), connecting springs (42) being fixedly sleeved on the outer surfaces of both sides of the collection rack (41), the tops of the connecting springs (42) being fixedly connected to the lower surface of the buffer plate (4), the elastic coefficient of the connecting springs (42) being the same as the gravity of the battery block (113), a plurality of latches (43) being slidably connected to the upper surface of one side of the box body (1), connecting blocks (45) being fixedly connected between the tops of the latches (43), linear springs (44) being fixedly sleeved on the outer surfaces of the latches (43), the tops of the linear springs (44) being fixedly connected to the lower surface of the connecting block (45).

10. A cylindrical lithium battery molding cap assembly device according to claim 9, characterized in that: One side of the collection rack (41) is in an arc shape, and one side of the bottom of the latch (43) is in an inclined shape. The inclined surfaces at the bottom of the latch (43) are pressed and matched with the arc surface of one side of the collection rack (41), and one side of the collection rack (41) is snap-fitted with one side of the latch (43).

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