Top bridge welding equipment for sodium ion battery

Abstract

The invention relates to the technical field of battery welding, and particularly discloses sodium ion battery top bridge welding equipment which comprises a welding mechanism used for laser welding, the welding mechanism comprises a laser welding head and a portal frame, and a mounting plate is arranged outside the portal frame; a plate pressing mechanism, a reset mechanism, a plate placing mechanism and a baffle are arranged outside the laser welding head, and a plate pushing mechanism, a releasing mechanism and a material distributing mechanism are arranged in the plate placing mechanism. Through mutual cooperation of the plate pressing mechanism, the reset mechanism, the plate pushing mechanism, the releasing mechanism, the plate placing mechanism and the baffle plate, after a pole plate at the top of a sodium battery pack is welded, firmness testing is carried out on the pole plate, and an infirm part is welded again according to feedback of a sensor, so that the welding quality is ensured, and the welding efficiency is improved. In addition, the step of manually placing the polar plates before machining can be shortened, and automatic discharging is carried out through movement of an existing welding mechanism.

Description

Technical Field

[0001] The invention belongs to the technical field of battery welding, and in particular relates to a sodium ion battery top bridge welding device. Background Art

[0002] Sodium-ion battery is a secondary battery that mainly relies on the movement of sodium ions between the positive and negative electrodes to work, which is similar to the working principle of lithium batteries. During the battery assembly process, in order to ensure the stability of the combination between the battery top bridge and the battery cell, it is generally necessary to use laser welding equipment to firmly attach the battery top bridge to the top of the battery body.

[0003] The existing welding equipment for the top bridge plate of sodium ion batteries is part of the production line, specifically a gantry galvanometer laser welding machine. However, during the production line process, the mold needs to be manually placed on the top of the battery pack, and then the plate to be welded is placed on the electrode core of the battery pack through the notch of the mold, and then it is conveyed to the bottom of the laser welding head through the conveyor belt of the production line for welding. In addition, after welding, because the connecting wires need to be welded, it is necessary to manually check whether the welded plate and the core are firm, so there will be the following problems:

[0004] First, in the existing production process, after welding, since the connecting wires need to be welded, it is necessary to manually inspect whether the welded plates and cores are firm. This inspection link relies on manual operation, and there may be inaccurate inspection or omissions, which affects production efficiency. In addition, there may be inaccurate inspection or omissions in the manual inspection link, resulting in some unqualified products, and product quality is limited.

[0005] Secondly, in the existing production process, before welding, the mold needs to be manually placed on the top of the battery pack, and then the plate is placed on the electrode core of the battery pack through the notch of the mold. This step will further limit production efficiency. Summary of the invention

[0006] The purpose of the present invention is to provide a sodium ion battery top bridge welding device to solve the problems existing in the prior art.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A sodium ion battery top bridge welding device, comprising a welding mechanism for laser welding, the welding mechanism comprising a laser welding head and a gantry, the gantry is provided with a mounting plate on the outside, the laser welding head is provided with a pressing plate mechanism, a resetting mechanism, a plate placement mechanism and a baffle on the outside, the plate placement mechanism is provided with a push plate mechanism, a release mechanism and a material distribution mechanism inside; the pressing plate mechanism comprises a central hole plate, a support block and a linkage block, the support block is located below the two ends of the central hole plate, the two support blocks are slidably connected to the opposite side with a support block, the linkage block is fixedly connected with a top block above, and the linkage block is fixedly connected with a tooth block on one side, the support block is used to hold up the plate, the central hole plate and the support block cooperate with each other to check the firmness of the plate and the battery core welding; the plate placement mechanism comprises a box, an auxiliary block one and an auxiliary block two, the box is used to place the long and short stacked plates, the auxiliary block one and the auxiliary block two are used to cooperate with the release mechanism; the push plate mechanism includes a The invention comprises a push plate rod, a limit plate and a receiving plate, wherein the push plate rod and the receiving plate are used to push a single electrode plate, the limit plate is used to limit the sliding of the push plate rod and the receiving plate, and the limit plate is used to cooperate with the release mechanism; the reset mechanism comprises a transmission cylinder, a connecting cylinder and a reset airbag, the transmission cylinder is installed on one side of the mounting plate, the connecting cylinder and the reset airbag are installed inside the plate placement mechanism, and the reset mechanism is used to push the receiving plate and the push plate rod; the release mechanism comprises an insertion rod, a receiving rod, a connection assembly and a limiting assembly, the insertion rod, the receiving rod and the connection rod are used to cooperate with the top block to lift the limit plate so that the push plate rod is released to push the electrode plate, and the limiting assembly is used to cooperate with the tooth block to release the connection assembly so that the connection assembly is located between the connection insertion rod and the receiving rod; the plate placement mechanism, the material distribution mechanism, the reset mechanism, the push plate mechanism, the release mechanism, the baffle plate and the pressure plate mechanism cooperate with each other to cut the long and short plates after stacking according to the welding sequence of the series connection of the electrode cores of the sodium battery pack;

[0009] One end of the baffle is mounted on one side of the mounting plate, and the baffle is located on one side of the pressing plate mechanism. The baffle is used to limit the position of the electrode after being pushed.

[0010] Preferably: the laser welding head is installed on one side of the mounting plate, and an electric cylinder is also installed on one side of the mounting plate, and a mounting block is installed on the output end of the electric cylinder, and one side of the mounting block is fixedly connected to one end of the linkage block through a connecting piece, and the center hole plate is used for the passage of laser when the laser welding head is in operation, and a connecting column is fixedly connected to the top of the support block, and the connecting column is plugged into the inside of the center hole plate and fixedly connected to a slider, and the slider is slidably connected to the inside of the center hole plate, and a spring 1 is surrounded by the periphery of the connecting column, and a sensor 1 is installed on the center hole plate above the slider, and a sensor 2 is installed inside the support block, and the sensor 2 is located on one side of the support block, and the support block is located inside the support block and a spring 2 is provided.

[0011] Preferably: the transmission cylinder is installed on one side of the mounting plate, the transmission cylinder is slidably connected to a piston rod inside, the top of the piston rod is fixedly connected to a top plate, both sides of the top plate are fixedly connected to connecting plates, one end of the connecting plate is fixedly connected to the mounting block, the lower end of the transmission cylinder is connected to the connecting cylinder through a hose, one end of the reset airbag is connected to the connecting cylinder, and the other end of the reset airbag is aligned with the receiving plate.

[0012] Preferably: a limiting vertical plate is fixedly connected above both ends of the push plate rod, the limiting vertical plate is used to be blocked by the limiting plate, the receiving plate is located at both ends of the push plate rod and is fixed by a rod connection, a spring three is provided on one side of the receiving plate, a spring sheet one is provided above the limiting plate, the limiting plate begins with a socket, and the socket cooperates with one end of the plug rod.

[0013] Preferably: both sides of the insertion rod and the receiving rod are provided with spring pieces 2, and the spring pieces 2 are used for the insertion rod and the spring pieces 2 to push the outside of the box body, the connection assembly includes a connection sleeve, a connection rod and a ramp block, the limiting assembly includes a limiting disk, gear 1, gear 2 and a shift rod, the connection rod is located between the insertion rod and the receiving rod, the connection rod is slidably connected to the inside of the connection sleeve, two springs 4 are provided on one side of the connection sleeve, an L rod is fixedly connected below the connection sleeve, the other end of the L rod is used to cooperate with auxiliary block 1, the ramp block is slidably connected to one side of the L rod, the end of the ramp block located in the L rod is provided with spring piece 3, the limiting disk has a notch at the beginning, and the notch cooperates with the ramp block.

[0014] Preferably: the limiting plate and the gear one are fixedly connected by an axis, the gear two is meshingly connected to the gear one, one end of the limiting assembly is movably connected with a shift block, the shift block cooperates with the gear two to drive the gear two to rotate forty-five degrees, the shift rod is rotatably connected to the inside of the box, and a torsion spring is provided at the rotation connection of the shift rod.

[0015] Preferably: a stacking cavity is provided on the top of the box body, and the interior of the stacking cavity is used to place the long plates and short plates stacked in the order of series welding of the sodium battery cores. A publishing groove is provided at the lower end of the box body near the pressure plate mechanism, and the publishing groove is connected to the stacking cavity. The auxiliary block 1 and the auxiliary block 2 are both slidably connected to the inner wall of the publishing groove. A trigger rod is provided on one side of the auxiliary block 1 and the auxiliary block 2. A spring 5 is fixedly connected to one side of the auxiliary block 1, and the spring 5 is used to push the L rod to allow the connecting assembly to be separated from between the insertion rod and the receiving rod as a whole.

[0016] Preferably: the material distribution mechanism includes a supporting base plate, a plug plate, a connecting rod, a connecting plate, a rubber part, a connecting rod and a unit assembly, the supporting base plate, the plug plate, the connecting plate and the rubber part are slidably connected to the inside of the box, and the connecting rod is rotatably connected to the inside of the box.

[0017] Preferably, one end of the plug board is rotatably connected to the upper end of the connecting rod, the lower end of the connecting rod is rotatably connected to one end of the supporting base plate, and the connecting plate is fixedly connected below the supporting base plate.

[0018] Preferably: the rubber piece is fixedly connected to both ends of the connecting plate, the rubber piece is used to cooperate with the limiting vertical plate, the connecting rod is located on both sides of the supporting base plate and the plug-in plate, the connecting rod is used to connect the unit assembly, and the unit assembly is composed of another supporting base plate, a plug-in plate and a connecting rod.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention cooperates with each other through the provided pressing plate mechanism, resetting mechanism, pushing plate mechanism, releasing mechanism, plate placement mechanism and baffle. When the electrode plate on the top of the sodium battery pack is welded, the electrode plate is tested for firmness, and the loose part can be welded again after feedback, so as to ensure the quality of welding and make each welding point reach the welding quality, which not only improves the reliability and safety of the product, but also reduces the cost of later manual inspection and the misjudgment during manual inspection.

[0021] 2. The present invention cooperates with each other through the set pressing plate mechanism, reset mechanism, push plate mechanism, release mechanism, plate placement mechanism and baffle. The long pole plates and short pole plates to be welded are stacked in series in the order of the sodium battery pack to the inside of the plate placement mechanism, and the movement of the existing gantry galvanometer laser welding and the movement of the pressing plate are used to push the long pole plates and the short pole plates for unloading and welding. Therefore, the method of placing the pole plates manually and by molds before welding the pole plates and the battery pack can be eliminated, thereby saving the early operation steps and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 One of the three-dimensional diagrams of the present invention as a whole;

[0023] Figure 2 For the present invention Figure 1 The structural diagram of the middle part;

[0024] Figure 3 For the present invention Figure 2 The structural diagram of the middle part;

[0025] Figure 4 It is a structural schematic diagram of the pressing plate mechanism of the present invention;

[0026] Figure 5 For the present invention Figure 4 Schematic diagram of the structure of the intermediate linkage block;

[0027] Figure 6 It is a schematic structural diagram of the transmission cylinder and its components of the reset mechanism of the present invention;

[0028] Figure 7 It is a schematic diagram of the structure inside the plate placement mechanism of the present invention;

[0029] Figure 8 It is a schematic cross-sectional structure diagram of the plate placement mechanism of the present invention;

[0030] Fig. 9 It is a schematic diagram of the connecting cylinder structure of the push plate mechanism and the reset mechanism of the present invention;

[0031] Fig.10 It is a structural schematic diagram of the release mechanism of the present invention;

[0032] Fig.11 For the present invention Fig.10 A schematic diagram of the structure of the connecting component and the limiting component;

[0033] Fig.12 It is a structural schematic diagram of the material distributing mechanism of the present invention;

[0034] Fig.13 It is a schematic diagram of the structure of the sodium battery plate after welding of the present invention.

[0035] In the figure:

[0036] 1. Welding mechanism; 11. Laser welding head; 12. Gantry; 13. Mounting plate; 14. Electric cylinder; 15. Mounting block;

[0037] 2. Pressing plate mechanism; 201. Middle hole plate; 202. Support block; 203. Connecting column; 204. Sliding block; 205. Spring 1; 206. Support block; 207. Spring 2; 208. Sensor 1; 209. Sensor 2; 210. Linkage block; 211. Top block; 212. Gear block;

[0038] 3. Reset mechanism; 31. Transmission cylinder; 32. Piston rod; 33. Top plate; 34. Connecting plate; 35. Connecting cylinder; 36. Reset airbag;

[0039] 4. Push plate mechanism; 41. Push plate rod; 42. Limiting plate; 43. Receiver plate; 44. Spring three; 45. Limiting plate; 46. Socket; 47. Shrapnel one;

[0040] 5. Release mechanism; 51. Insertion rod; 52. Receiving rod; 53. Shrapnel 2;

[0041] 54, connecting assembly; 541, connecting sleeve; 542, spring four; 543, L rod; 544, connecting rod; 545, inclined block; 546, spring three;

[0042] 55, limiting assembly; 551, limiting plate; 552, notch; 553, gear 1; 554, gear 2; 555, lever; 556, shift block; 557, torsion spring;

[0043] 6. Plate placement mechanism; 61. Box body; 62. Stacking cavity; 63. Publishing groove; 64. Auxiliary block 1; 65. Auxiliary block 2; 66. Trigger rod; 67. Spring 5;

[0044] 7. Material distribution mechanism; 71. Support bottom plate; 72. Plug-in plate; 73. Connecting rod; 74. Connecting plate; 75. Rubber part; 76. Connecting rod; 77. Unit assembly;

[0045] 8. Baffle. DETAILED DESCRIPTION

[0046] 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.

[0047] Reference Figure 1-Figure 13 As shown, the present invention provides a sodium ion battery top bridge welding device, including a welding mechanism 1 for laser welding, the welding mechanism 1 includes a laser welding head 11 and a gantry 12, the gantry 12 is provided with a mounting plate 13 on the outside, the laser welding head 11 is provided with a pressing plate mechanism 2, a reset mechanism 3, a plate setting mechanism 6 and a baffle 8 on the outside, and the plate setting mechanism 6 is provided with a pushing plate mechanism 4, a releasing mechanism 5 and a material dividing mechanism 7 on the inside; the welding mechanism 1 is a gantry galvanometer laser welding device in the prior art;

[0048] The pressing plate mechanism 2 includes a central hole plate 201, a supporting block 202 and a linkage block 210. The supporting block 202 is located below the two ends of the central hole plate 201. The two supporting blocks 202 are slidably connected to the supporting blocks 206 on the opposite sides. A top block 211 is fixedly connected to the top of the linkage block 210. A tooth block 212 is fixedly connected to one side of the linkage block 210. The supporting block 206 is used to hold up the plate. The central hole plate 201 and the supporting block 202 cooperate with each other to check the firmness of the welding between the plate and the battery core; the top block 211 and the tooth block 212 are both on the side of the linkage block 210 close to the plate placement mechanism 6;

[0049] The plate placement mechanism 6 includes a box 61, an auxiliary block 1 64 and an auxiliary block 2 65. The box 61 is used to place the long and short stacked plates, and the auxiliary block 1 64 and the auxiliary block 2 65 are used to cooperate with the release mechanism 5. The box 61 is connected to the mounting plate 13 through the mounting frame, that is, the box 61 will move with 13.

[0050] The push plate mechanism 4 includes a push plate rod 41, a limit plate 45 and a receiving plate 43. The push plate rod 41 and the receiving plate 43 are used to push a single electrode plate. The limit plate 45 is used to limit the sliding of the push plate rod 41 and the receiving plate 43. The limit plate 45 is used to cooperate with the release mechanism 5.

[0051] The reset mechanism 3 includes a transmission cylinder 31, a connecting cylinder 35 and a reset airbag 36. The transmission cylinder 31 is installed on one side of the mounting plate 13, and the connecting cylinder 35 and the reset airbag 36 are installed inside the plate placement mechanism 6. The reset mechanism 3 is used to push the receiving plate 43 and the push plate rod 41.

[0052] The release mechanism 5 includes an insert rod 51, a receiving rod 52, a connection assembly 54 and a limiting assembly 55. The insert rod 51, the receiving rod 52 and the connection rod 544 are used to cooperate with the top block 211 to lift the limit plate 45 so that the release push plate rod 41 can push the pole plate. The limiting assembly 55 is used to cooperate with the tooth block 212 to release the connection assembly 54 so that the connection assembly 54 is located between the connection insert rod 51 and the receiving rod 52.

[0053] The plate placing mechanism 6, the material dividing mechanism 7, the resetting mechanism 3, the plate pushing mechanism 4, the releasing mechanism 5, the baffle 8 and the pressing mechanism 2 cooperate with each other to unload the stacked long and short plates according to the welding sequence of the sodium battery cores in series;

[0054] One end of the baffle 8 is mounted on one side of the mounting plate 13 . The baffle 8 is located on one side of the pressing plate mechanism 2 . The baffle 8 is used to limit the position of the electrode after being pushed.

[0055] It should be noted that the stacking order of the long plates and the short plates is based on the welding order of the sodium battery cores in series, that is, Fig.13 The arrows in the middle are in order and combined Figure 7 The state of the middle plates after stacking is "short-long-long-long-short" from bottom to top. The existing gantry galvanometer laser welding equipment is also welded according to the series connection sequence of the battery pack through PLC control;

[0056] When the sodium battery is transported to the conveyor belt of the gantry 12 by the external conveying equipment and stops, the electrode core of the battery is quickly identified by the industrial camera on the gantry 12 production line, and then the gantry 12 and the laser welding head 11 are operated by the PLC to start welding the battery and the plate. In this process, the gantry 12 will carry the laser welding head 11 along the series direction of the battery pack through the mounting plate 13 to perform laser welding, and each time the laser welding head 11 reaches an electrode, the electric cylinder 14 will be started once, so that the mounting block 15 will carry the pressing plate mechanism 2 to move down and up once, and the cycle will be repeated until the battery pack is assembled;

[0057] After the plates to be welded are stacked in the box body 61 according to the welding sequence, the stacked plates can be unloaded one by one through the existing material distribution mechanism 7, so that the short plates can fall to one side of the push plate rod 41. When the middle hole plate 201, the linkage block 210 and the mounting block 15 start to move upward after the electric cylinder 14 operates, one end of the receiving rod 52 is pushed through the top block 211, and the insertion rod 51 is moved toward the limit plate 45 through the connecting rod 544, and inserted into the inside of the socket 46, so that the limit plate 45 is passively moved upward. The plate rod 41 and the limiting vertical plate 42 will no longer be restricted by the limiting plate 45, so that the push plate rod 41 can quickly push the short pole plate under the rapid rebound action of the spring three 44, and allow the two sides of the short pole plate to pass over the auxiliary block one 64 and the auxiliary block two 65, and reach the top of the support block 206. At this time, the short pole plate will be lifted by the support block 206, and then the operation of the electric cylinder 14 will allow the pressure plate mechanism 2 to move down as a whole with the short pole plate, and allow the short pole plate to contact the pole core of the battery, and then the laser welding head 11 will operate to weld the two through the galvanometer laser.

[0058] Reference Figure 2-Figure 4 In a further embodiment, the laser welding head 11 is installed on one side of the mounting plate 13, and an electric cylinder 14 is also installed on one side of the mounting plate 13. A mounting block 15 is installed on the output end of the electric cylinder 14, and one side of the mounting block 15 is fixedly connected to one end of the linkage block 210 through a connecting piece. The center hole plate 201 is used for the laser to pass through when the laser welding head 11 is in operation. A connecting column 203 is fixedly connected to the top of the support block 202, and the connecting column 203 is inserted into the inside of the center hole plate 201 and fixedly connected to a slider 204. The slider 204 is slidably connected to the inside of the center hole plate 201, and a spring 1 205 is surrounded by the periphery of the connecting column 203. A sensor 1 208 is installed on the center hole plate 201 above the slider 204, and a sensor 2 209 is installed inside the support block 202. The sensor 209 is located on one side of the support block 206, and the support block 206 is located inside the support block 202 and is provided with a spring 207.

[0059] It should be noted that the upper part of the support block 206 will receive the short plate or the long plate. When the support block 206 receives the short plate, part of the short plate will be placed on the upper part of the auxiliary block 2 65, and as the entire pressing plate mechanism 2 moves downward, the auxiliary block 2 65 will be retracted into the interior of the box body 61; and when the support block 206 receives the long plate, at this time, only part of the long plate is located above the support block 206 because of the obstruction of the baffle 8, and the other part will be located above the auxiliary block 1 64 and the auxiliary block 2 65 at the same time. Therefore, at this time, the entire pressing plate mechanism 2 moves downward, which will make the auxiliary block 1 65 retract to the inside of the box body 61. 4 and the auxiliary block 2 65 are both retracted into the interior of the box body 61, and the auxiliary block 1 64 will push the entire connection assembly 54 to move through the spring 5 67, so the inclined block 545 will be forced to get stuck on one side of the limiting plate 551, that is, the entire connection assembly 54 is no longer located between the insertion rod 51 and the receiving rod 52. At this time, the upward movement of the top block 211 cannot push the insertion rod 51 through the receiving rod 52. The whole is used for welding the other end after welding one end of the long plate, thereby suspending the discharge of the plate in the stacking cavity 62, that is, when the pushed out plate is a long plate, the pushing of the push plate rod 41 is suspended.

[0060] After the short plate or the long plate is welded, the pressing plate mechanism 2 will move up again. During the upward movement, since the welded short plate is still located above the support block 206, the support block 206, the support block 202, the connecting column 203 and the slider 204 will be subjected to pressure and the spring 1 205 and the spring 2 207 will be squeezed, and the following two situations will occur:

[0061] Condition 1: When moving upward, spring 207 cannot withstand the lateral movement pressure of support block 206 when it is passively pressed downward. At this time, support block 206 will shrink to the inside of support block 202 and contact sensor 2 209. At this time, the plate will be separated from the support of support block 206, and spring 1 205 will also rebound quickly, so that slider 204 will contact sensor 1 208. After sensor 1 208 and sensor 2 209 receive the contact signal together, it means that the plate welded here is strong enough.

[0062] Condition 2: When moving upward, if spring 207 is subjected to lateral pressure from support block 206, the connection between the electrode plate and the battery electrode core is suddenly lost. Therefore, the slider 204 will contact sensor 1 208 under the rebound of spring 1 205. At this time, sensor 1 208 receives a contact signal, but sensor 2 209 does not receive a contact signal, indicating that the electrode plate welded there is not firm. Therefore, the electrical signal is fed back to the external PLC, allowing the laser welding head 11 and the electric cylinder 14 to operate again, and the cycle is repeated until the electrode plate and the battery are firmly welded.

[0063] Reference Figure 6-Figure 11In a further embodiment, a transmission cylinder 31 is mounted on one side of the mounting plate 13, a piston rod 32 is slidably connected inside the transmission cylinder 31, a top plate 33 is fixedly connected to the top of the piston rod 32, connecting plates 34 are fixedly connected to both sides of the top plate 33, one end of the connecting plate 34 is fixedly connected to the mounting block 15, the lower end of the transmission cylinder 31 is connected to the connecting cylinder 35 through a hose, one end of the reset airbag 36 is connected to the connecting cylinder 35, and the other end of the reset airbag 36 is aligned with the receiving plate 43;

[0064] The reset airbag 36 is a foldable airbag, and when the pressure plate mechanism 2 moves up with the mounting block 15, the gas in the reset airbag 36 will return to the inside of the transmission cylinder 31. At this time, the rebound of the spring three 44 will allow the receiving plate 43 to move, and the reset airbag 36 cannot prevent the movement of the receiving plate 43. The connecting cylinder 35 is used to transfer air, and the total gas volume in the transmission cylinder 31, the connecting cylinder 35 and the reset airbag 36 remains unchanged.

[0065] The upper ends of the push plate rod 41 are fixedly connected with the limit vertical plates 42, and the limit vertical plates 42 are used to be blocked by the limit plates 45. The receiving plates 43 are located at the two ends of the push plate rod 41 and are connected and fixed by the rods. A spring 3 44 is arranged on one side of the receiving plate 43, and a spring 1 47 is arranged above the limit plate 45. The limit plate 45 has a socket 46 at the beginning, and the socket 46 cooperates with one end of the plug rod 51.

[0066] There are two inclined blocks on the non-pushing side of the push plate rod 41, which are used to reset the push plate rod 41 after the long pole plate falls, so that the long pole plate can still be located above the push plate rod 41. In addition, the existing long pole plates are all recessed in the middle, so the reset push plate rod 41 is located in the recess, so that it is convenient to drive the long pole plate to move when the next push is made; the lower end of the limit plate 45 has a cut surface, so that the limit plate 45 can be lifted when the push plate rod 41 moves to the left, and one end of the insertion rod 51 also has a cut surface, so that the limit plate 45 can be moved up as a whole during the process of being inserted into the insertion hole 46, thereby releasing the push plate rod 41, and allowing the push plate rod 41 to quickly push the pole plate under the rebound of the spring three 44;

[0067] Both sides of the insertion rod 51 and the receiving rod 52 are provided with spring pieces 53, and the spring pieces 53 are used to push the insertion rod 51 and the spring pieces 53 toward the outside of the box body 61. The connection assembly 54 includes a connection sleeve 541, a connection rod 544 and a ramp block 545. The limiting assembly 55 includes a limiting plate 551, a gear 1 553, a gear 2 554 and a lever 555. The connection rod 544 is located between the insertion rod 51 and the receiving rod 52, and the connection rod 544 is slidably connected to the engagement sleeve 541. Inside the connecting sleeve 541, two springs 542 are arranged on one side of the connecting sleeve 541, and a fixed connecting piece below the connecting sleeve 541 has an L rod 543, and the other end of the L rod 543 is used to cooperate with the auxiliary block 1 64, and the inclined surface block 545 is slidably connected to one side of the L rod 543, and one end of the inclined surface block 545 located inside the L rod 543 is provided with a spring piece 3 546, and the limiting plate 551 begins to have a notch 552, and the notch 552 cooperates with the inclined surface block 545;

[0068] The limiting plate 551 has a cut surface on one side close to the inclined surface block 545, so that the inclined surface block 545 can reach one side of the limiting plate 551 and be stuck when the entire connecting assembly 54 moves; the lever 555 is composed of a rod and a half gear, wherein the half gear can mesh with the tooth block 212, thereby allowing the entire lever 555 to rotate, and the lever 555 is provided with a protrusion below one end of the lever block 556, which prevents the lever block 556 from rotating clockwise. The torsion spring 557 is used to return the lever 555 to the center position after the lever 555 rotates counterclockwise, and the shift block 556 can rotate counterclockwise at this time, that is, the entire lever 555, the shift block 556 and the torsion spring 557 constitute a one-way component; the gear ratio of the gear 2 554 to the gear 1 553 is such that when the gear 2 554 rotates forty-five degrees, the gear 1 553 just rotates ninety degrees;

[0069] The limiting plate 551 and gear one 553 are fixedly connected by an axis, gear two 554 is meshedly connected to gear one 553, one end of the limiting component 55 is movably connected to a shift block 556, and the shift block 556 cooperates with gear two 554 to drive gear two 554 to rotate forty-five degrees. The shift rod 555 is rotatably connected to the inside of the box body 61, and a torsion spring 557 is provided at the rotation connection of the shift rod 555.

[0070] It should be noted that the reset description of the push plate rod 41 is as follows: when the pressure plate mechanism 2 moves downward with the pole plate as a whole, the mounting block 15 will also move downward at the same time, thereby causing the connecting plate 34, the top plate 33 and the piston rod 32 to move downward together, and the downward movement of the piston rod 32 will compress the air in the transmission cylinder 31 and transport it to the inside of the connecting cylinder 35 through the hose, so that the reset airbag 36 will expand rapidly and push the receiving plate 43 to move and compress the spring three 44 on its back. In addition, when moving, it will move with the push plate rod 41 and the limit vertical plate 42 together, until the limit vertical plate 42 moves to one side of the limit plate 45, it will force the limit plate 45 to move up, and when the limit vertical plate 42 moves to the other side of the limit plate 45, the rebound of the spring piece 1 47 will rebound quickly so that the limit plate 45 limits the position of the push plate rod 41 and the limit vertical plate 42, so that it is convenient to push the pole plate next time;

[0071] Regarding the release mechanism 5 pausing the push of the push plate rod 41: After the short pole plate is pushed and welded for the first time, the long pole plate will fall, and as the linkage block 210 moves upward, the top block 211 sequentially lifts the limit plate 45 through the receiving rod 52, the connecting rod 544 and the insertion rod 51, so that the limit plate 45 releases the push plate rod 41, and then pushes the long pole plate, and the long pole plate is partially located above the support block 206, and the other part is located above the auxiliary block 1 64 and the auxiliary block 2 65, and as the electric cylinder 14 operates, the pressure plate The mechanism 2 moves the long plate downward, and during this process the long plate will squeeze the auxiliary block 1 64 and the auxiliary block 2 65, so that the auxiliary block 1 64 and the auxiliary block 2 65 will shrink and enter the interior of the box body 61. Since the shrinkage of the auxiliary block 1 64 will cause the L rod 543 to move with the connecting sleeve 541 through the spring 5 67, the two ends of the connecting rod 544 will no longer contact the insertion rod 51 and the receiving rod 52, and the inclined block 545 will also be located on one side of the limiting disk 551. Therefore, when the pressure plate mechanism 2 moves the long plate downward and welds one end of the long plate, it will move upward again. When the top block 211 is moved, the top block 211 will no longer be able to push the connecting rod 544 through the receiving rod 52, so that the next long electrode plate cannot be released, so the other end of the long electrode plate can be welded; when both ends of the long electrode plate are welded, the pressing plate mechanism 2 has performed a total of four upward movements (the first is the upward movement after the short electrode plate is welded, the second is the upward movement after one end of the long electrode plate is welded, the third is the upward movement when the other end of the long electrode plate is welded, and the fourth is the upward movement after the entire long electrode plate is welded), and the four upward movements will be made by the tooth block 212. The lever 555 rotates once, causing the gear 2 554 to rotate forty-five degrees counterclockwise, and then causing the gear 1 553 to rotate ninety degrees with the limiting plate 551. After four times, the notch 552 will be on one side of the inclined block 545. At this time, the spring four 542 will rebound quickly, allowing the connecting rod 544 in the connecting sleeve 541 to be back in the middle of the insertion rod 51 and the receiving rod 52. At this time, as the top block 211 moves upward, the limit plate 45 can be lifted in turn through the receiving rod 52, the connecting rod 544 and the insertion rod 51, so that the push plate rod 41 can push the next pole plate.

[0072] Reference Figure 7-Figure 8 In a further embodiment, a stacking cavity 62 is provided at the top of the box body 61, and the interior of the stacking cavity 62 is used to place the long plates and short plates stacked in the series welding sequence of the sodium battery core. A publishing groove 63 is provided at the lower end of the box body 61 near the pressure plate mechanism 2, and the publishing groove 63 is connected to the stacking cavity 62. The auxiliary block 1 64 and the auxiliary block 2 65 are both slidably connected to the inner wall of the publishing groove 63. A trigger rod 66 is provided on one side of the auxiliary block 1 64 and the auxiliary block 2 65. A spring 5 67 is fixedly connected to one side of the auxiliary block 1 64. The spring 5 67 is used to push the L rod 543 to allow the connecting component 54 to be separated from between the insertion rod 51 and the receiving rod 52 as a whole.

[0073] It should be particularly noted that the push plate rod 41, the limit plate 45, the receiving plate 43, the insertion rod 51, the receiving rod 52, and the connecting assembly 54 are all slidably connected to the inside of the box body 61, and the limiting assembly 55 is movably connected to the inside of the box body 61; the opening at the connection between the publishing groove 63 and the stacking cavity 62 allows a single long electrode or a short electrode to pass through, and the publishing groove 63 is also used to allow the auxiliary block 1 64 and the auxiliary block 2 65 to temporarily support the electrode during the pushing process, and allow part of the electrode to be detached when it is inside the publishing groove 63 as the pressure plate mechanism 2 moves downward.

[0074] Reference Fig.12 In a further embodiment, the material dispensing mechanism 7 includes a supporting base plate 71, a plug-in plate 72, a connecting rod 73, a connecting plate 74, a rubber member 75, a connecting rod 76 and a unit assembly 77. The supporting base plate 71, the plug-in plate 72, the connecting plate 74 and the rubber member 75 are slidably connected to the inside of the box body 61, the connecting rod 73 is rotatably connected to the inside of the box body 61, one end of the plug-in plate 72 is rotatably connected to the upper end of the connecting rod 73, and the lower end of the connecting rod 73 is rotatably connected to one end of the supporting base plate 71, the connecting plate 74 is fixedly connected to the bottom of the supporting base plate 71, the rubber member 75 is fixedly connected to both ends of the connecting plate 74, the rubber member 75 is used to cooperate with the limiting vertical plate 42, the connecting rod 76 is located on both sides of the supporting base plate 71 and the plug-in plate 72, the connecting rod 76 is used to connect the unit assembly 77, and the unit assembly 77 is composed of another supporting base plate 71, the plug-in plate 72, and the connecting rod 73.

[0075] It should be noted that the material separation mechanism 7 is a mechanism in the prior art for separating the plates with a certain gap after being stacked, so that the plates can be unloaded one by one; the rubber member 75 is located at the sliding track of the limit vertical plate 42 at both ends of the push plate rod 41, so when the push plate rod 41 pushes a plate, the rubber member 75 will be triggered once, thereby allowing the support bottom plate 71 to move in the same direction and the plug-in plate 72 to move in the opposite direction once through the connecting rod 73, thereby allowing the plug-in plate 72 to be inserted under the plate to be dropped, and at this time the plate below will fall because it has no support from the support bottom plate 71, and when the push plate rod 41 and the limit vertical plate 42 In the process of returning to the initial position, the rubber member 75 will be driven in the reverse direction, so the stacked plates will be cut one by one step by step; the connecting rod 76 on the left connects the supporting base plate 71 and the plug-in plate 72 of the unit assembly 77, and the connecting rod 76 on the right connects the plug-in plate 72 and the supporting base plate 71 of the unit assembly 77, so that the unit assembly 77 can move synchronously; the rubber member 75 is a soft rubber. When the limiting vertical plate 42 moves the rubber member 75, the connecting plate 74 and the supporting base plate 71 into place, the rubber member 75 will be deformed, thereby avoiding affecting the pushing of the plate by the push plate rod 41.

[0076] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sodium ion battery top bridge welding device, comprising a welding mechanism (1) for laser welding, characterized in that: The welding mechanism (1) comprises a laser welding head (11) and a gantry (12); a mounting plate (13) is arranged outside the gantry (12); a pressing plate mechanism (2), a reset mechanism (3), a plate placement mechanism (6) and a baffle (8) are arranged outside the laser welding head (11); and a pushing plate mechanism (4), a releasing mechanism (5) and a material distribution mechanism (7) are arranged inside the plate placement mechanism (6); The pressing plate mechanism (2) comprises a central hole plate (201), a supporting block (202) and a linkage block (210); the supporting blocks (202) are located below the two ends of the central hole plate (201); the two supporting blocks (202) are slidably connected to supporting blocks (206) on opposite sides; a top block (211) is fixedly connected to the top of the linkage block (210); a tooth block (212) is fixedly connected to one side of the linkage block (210); the supporting block (206) is used to support the electrode plate; the central hole plate (201) and the supporting block (202) cooperate with each other to check the firmness of welding between the electrode plate and the battery electrode core; The plate placement mechanism (6) comprises a box (61), an auxiliary block 1 (64) and an auxiliary block 2 (65); the box (61) is used to place the long and short stacked plates; the auxiliary block 1 (64) and the auxiliary block 2 (65) are used to cooperate with the release mechanism (5); The push plate mechanism (4) comprises a push plate rod (41), a limit plate (45) and a receiving plate (43); the push plate rod (41) and the receiving plate (43) are used to push a single pole plate; the limit plate (45) is used to limit the sliding of the push plate rod (41) and the receiving plate (43); the limit plate (45) is used to cooperate with the release mechanism (5); The reset mechanism (3) comprises a transmission cylinder (31), a connecting cylinder (35) and a reset airbag (36); the transmission cylinder (31) is mounted on one side of the mounting plate (13); the connecting cylinder (35) and the reset airbag (36) are mounted inside the plate placement mechanism (6); the reset mechanism (3) is used to push the receiving plate (43) and the plate pushing rod (41); The release mechanism (5) comprises an insert rod (51), a receiving rod (52), a connection assembly (54) and a limiting assembly (55); the insert rod (51), the receiving rod (52) and the connection rod (544) are used to cooperate with the top block (211) to lift the limit plate (45) so that the release push plate rod (41) can push the pole plate; the limiting assembly (55) is used to cooperate with the tooth block (212) to release the connection assembly (54) so ​​that the connection assembly (54) is located between the connecting insert rod (51) and the receiving rod (52); The plate placing mechanism (6), the material distributing mechanism (7), the resetting mechanism (3), the plate pushing mechanism (4), the releasing mechanism (5), the baffle (8) and the pressing mechanism (2) cooperate with each other to discharge the stacked long and short pole plates according to the welding sequence of the pole cores of the sodium battery group in series; One end of the baffle (8) is mounted on one side of the mounting plate (13); the baffle (8) is located on one side of the pressing plate mechanism (2); and the baffle (8) is used to limit the position of the electrode after being pushed.

2. A sodium ion battery top bridge welding device according to claim 1, characterized in that: The laser welding head (11) is mounted on one side of the mounting plate (13), an electric cylinder (14) is also mounted on one side of the mounting plate (13), a mounting block (15) is mounted on the output end of the electric cylinder (14), one side of the mounting block (15) is fixedly connected to one end of the linkage block (210) via a connecting piece, the center hole plate (201) is used for the laser to pass through when the laser welding head (11) is in operation, a connecting column (203) is fixedly connected to the top of the support block (202), and the connecting column (203) is plugged into the inside of the center hole plate (201). A slider (204) is fixedly connected, and the slider (204) is slidably connected to the inside of the center hole plate (201). A spring 1 (205) surrounds the periphery of the connecting column (203). A sensor 1 (208) is installed above the center hole plate (201) located above the slider (204). A sensor 2 (209) is installed inside the support block (202). The sensor 2 (209) is located on one side of the support block (206). The support block (206) is located inside the support block (202) and a spring 2 (207) is provided.

3. A sodium ion battery top bridge welding device according to claim 1, characterized in that: The transmission cylinder (31) is mounted on one side of the mounting plate (13); a piston rod (32) is slidably connected inside the transmission cylinder (31); a top end of the piston rod (32) is fixedly connected to a top plate (33); connecting plates (34) are fixedly connected to both sides of the top plate (33); one end of the connecting plate (34) is fixedly connected to the mounting block (15); the lower end of the transmission cylinder (31) is connected to the connecting cylinder (35) through a hose; one end of the reset airbag (36) is connected to the connecting cylinder (35); and the other end of the reset airbag (36) is aligned with the receiving plate (43).

4. A sodium ion battery top bridge welding device according to claim 1, characterized in that: The upper ends of the two ends of the push plate rod (41) are fixedly connected to the limiting vertical plates (42), and the limiting vertical plates (42) are used to be blocked by the limiting plates (45). The receiving plates (43) are located at the two ends of the push plate rod (41) and are connected and fixed by rods. A spring three (44) is arranged on one side of the receiving plate (43), and a spring sheet one (47) is arranged above the limiting plate (45). The limiting plate (45) has a socket (46) at the beginning, and the socket (46) cooperates with one end of the insertion rod (51).

5. A sodium ion battery top bridge welding device according to claim 1, characterized in that: Both sides of the insertion rod (51) and the receiving rod (52) are provided with spring pieces 2 (53), and the spring pieces 2 (53) are used to push the insertion rod (51) and the spring pieces 2 (53) toward the outside of the box body (61). The connection assembly (54) includes a connection sleeve (541), a connection rod (544) and a ramp block (545). The limiting assembly (55) includes a limiting plate (551), a gear 1 (553), a gear 2 (554) and a lever (555). The connection rod (544) is located between the insertion rod (51) and the receiving rod (52), and the connection rod (544) is slidably connected to the insertion rod (51) and the receiving rod (52). Inside the connection sleeve (541), two springs (4) (542) are arranged on one side of the connection sleeve (541); a fixed connection piece at the bottom of the connection sleeve (541) is provided with an L-rod (543); the other end of the L-rod (543) is used to cooperate with an auxiliary block (64); the inclined surface block (545) is slidably connected to one side of the L-rod (543); a spring piece (546) is arranged at one end of the inclined surface block (545) located inside the L-rod (543); and a notch (552) is provided at the beginning of the limiting disk (551); the notch (552) cooperates with the inclined surface block (545).

6. A sodium ion battery top bridge welding device according to claim 5, characterized in that: The limiting disk (551) and the gear one (553) are fixedly connected via an axis, the gear two (554) is meshingly connected to the gear one (553), one end of the limiting assembly (55) is movably connected with a shift block (556), the shift block (556) cooperates with the gear two (554) to drive the gear two (554) to rotate forty-five degrees, the shift rod (555) is rotatably connected to the inside of the box body (61), and a torsion spring (557) is provided at the rotatable connection of the shift rod (555).

7. A sodium ion battery top bridge welding device according to claim 1, characterized in that: A stacking cavity (62) is provided on the top of the box body (61), and the interior of the stacking cavity (62) is used to place the long pole plates and the short pole plates stacked in the order of series welding of the pole cores of the sodium battery pack. A publishing groove (63) is provided at the lower end of the box body (61) close to the pressure plate mechanism (2), and the publishing groove (63) is connected to the stacking cavity (62). The auxiliary block 1 (64) and the auxiliary block 2 (65) are both slidably connected to the inner wall of the publishing groove (63). A trigger rod (66) is provided on one side of the auxiliary block 1 (64) and the auxiliary block 2 (65). A spring 5 (67) is fixedly connected to one side of the auxiliary block 1 (64), and the spring 5 (67) is used to push the L rod (543) to allow the connection assembly (54) to be separated from between the insertion rod (51) and the receiving rod (52) as a whole.

8. The sodium ion battery top bridge welding equipment according to claim 1, characterized in that: The material distribution mechanism (7) comprises a supporting base plate (71), a plug-in plate (72), a connecting rod (73), a connecting plate (74), a rubber member (75), a connecting rod (76) and a unit assembly (77); the supporting base plate (71), the plug-in plate (72), the connecting plate (74) and the rubber member (75) are slidably connected to the interior of the box body (61); and the connecting rod (73) is rotatably connected to the interior of the box body (61).

9. A sodium ion battery top bridge welding device according to claim 8, characterized in that: One end of the plug board (72) is rotatably connected to the upper end of the connecting rod (73), the lower end of the connecting rod (73) is rotatably connected to one end of the supporting base plate (71), and the connecting plate (74) is fixedly connected below the supporting base plate (71).

10. A sodium ion battery top bridge welding device according to claim 8, characterized in that: The rubber member (75) is fixedly connected to both ends of the connecting plate (74), and the rubber member (75) is used to cooperate with the limiting vertical plate (42). The connecting rod (76) is located on both sides of the supporting base plate (71) and the plug-in plate (72), and the connecting rod (76) is used to connect the unit assembly (77). The unit assembly (77) is composed of another supporting base plate (71), the plug-in plate (72) and the connecting rod (73).

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