Cylindrical battery cell collector plate welding equipment

Abstract

The invention provides welding equipment for a cylindrical battery cell collector plate. Comprising a first magnetic drive line, and a battery cell feeding mechanism, a battery cell code scanning mechanism, a first collector plate welding mechanism, a battery cell overturning mechanism, a second collector plate welding mechanism, a short circuit testing mechanism, a pressing mechanism, a length detection mechanism, a dust removal mechanism, a battery cell detection mechanism and a battery cell discharging mechanism which are sequentially arranged in the conveying direction of the first magnetic drive line, wherein the first magnetic drive line comprises a plurality of first rotors, battery cell clamps are assembled on the first rotors, and the first rotors bear battery cells from the battery cell feeding mechanism; and the battery cell passes through the battery cell code scanning mechanism, the first collector plate welding mechanism, the battery cell overturning mechanism, the second collector plate welding mechanism, the short circuit testing mechanism, the pressing mechanism, the length detection mechanism, the dust removal mechanism and the battery cell detection mechanism in sequence to the battery cell discharging mechanism to complete welding and detection work of the positive collector plate and the negative collector plate of the battery cell. The system is high in integration level, and facilitates the improvement of the working efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of batteries, and particularly to a welding device for the current collector plates of cylindrical battery cells. Background Art

[0002] The welding of the positive and negative current collector plates of cylindrical battery cells is a key process in battery manufacturing. The welding result directly affects the electrical conductivity and safety performance of the battery. Therefore, when welding the current collector plates of cylindrical battery cells, not only the welding accuracy needs to be ensured, but also a series of process treatments such as dust removal and detection need to be carried out on the welded cylindrical battery cells. The existing cylindrical battery cell current collector plates need to be transferred multiple times after welding to complete various post-welding operations correspondingly, resulting in low efficiency. Summary of the Invention

[0003] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a welding device for the current collector plates of cylindrical battery cells, which has a high degree of integration and is conducive to improving work efficiency.

[0004] The embodiments of the present invention are achieved through the following technical solutions:

[0005] A welding device for the current collector plates of cylindrical battery cells includes a first magnetic drive line and a battery cell loading mechanism, a battery cell code scanning mechanism, a first current collector plate welding mechanism, a battery cell flipping mechanism, a second current collector plate welding mechanism, a short circuit testing mechanism, a pressing mechanism, a length detection mechanism, a dust removal mechanism, a battery cell detection mechanism, and a battery cell unloading mechanism arranged in sequence along the conveying direction of the first magnetic drive line. Among them: the first magnetic drive line includes a number of first movers, and a battery cell fixture is assembled on the first mover for assembling the battery cell body. The first mover carries the battery cell starting from the battery cell loading mechanism, and successively passes through the battery cell code scanning mechanism, the first current collector plate welding mechanism, the battery cell flipping mechanism, the second current collector plate welding mechanism, the short circuit testing mechanism, the pressing mechanism, the length detection mechanism, the dust removal mechanism, and the battery cell detection mechanism to the battery cell unloading mechanism to complete the welding of the positive and negative current collector plates of the battery cell; a current collector plate loading mechanism is correspondingly arranged at both the first current collector plate welding mechanism and the second current collector plate welding mechanism.

[0006] The technical solutions of the embodiments of the present invention have at least the following advantages and beneficial effects:

[0007] The first magnetic drive line of the present invention is a closed return line. After the battery cell body is loaded onto the first magnetic drive line, it can successively complete the welding of the current collector plates, as well as post-welding processes such as battery cell short circuit detection, battery cell pressing, battery cell length detection, dust removal after battery cell welding, and detection of appearance defects of the battery cell along the structural path of the first magnetic drive line. It has a high degree of integration and completes the welding of the current collector plates of the battery cell and the entire post-welding process flow on the same conveying mechanism, that is, the first magnetic drive line. It has a high degree of integration, which is conducive to reducing the floor area of the equipment and improving the efficiency at the same time. Brief Description of the Drawings

[0008] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0009] Figure 1 The top view structural diagram of the cylindrical battery cell current collector plate welding device provided by the embodiment of the present invention;

[0010] Figure 2 The three-dimensional structural diagram of the battery cell code scanning mechanism provided by the embodiment of the present invention;

[0011] Figure 3 The three-dimensional structural diagram of the pressing plate assembly provided by the embodiment of the present invention;

[0012] Figure 4 The first three-dimensional structural diagram of the lifting and rotating assembly provided by the embodiment of the present invention;

[0013] Figure 5 The second three-dimensional structural diagram of the lifting and rotating assembly provided by the embodiment of the present invention;

[0014] Figure 6 The exploded structural diagram of the battery cell fixture provided by the embodiment of the present invention;

[0015] Figure 7 The top view structural diagram of the installation base plate and the moving fixture plate after assembly provided by the embodiment of the present invention;

[0016] Figure 8 The top view structural diagram of the first current collector plate welding mechanism provided by the embodiment of the present invention;

[0017] Figure 9 The three-dimensional structural diagram of the current collector plate feeding part (removing the second feeding module) provided by the embodiment of the present invention;

[0018] Figure 10 The top view structural diagram of the current collector plate feeding part provided by the embodiment of the present invention;

[0019] Figure 11 The three-dimensional structural diagram of the roller line assembly after assembling the magazine provided by the embodiment of the present invention;

[0020] Figure 12 The assembly structural diagram of the first gantry adjustment module, the first grasping module and the second grasping module provided by the embodiment of the present invention;

[0021] Figure 13Schematic three-dimensional structure diagram of the first grasping module provided by an embodiment of the present invention;

[0022] Figure 14 Schematic three-dimensional structure diagram of the first grasping module of the second grasping module provided by an embodiment of the present invention;

[0023] Figure 15 Schematic three-dimensional structure diagram of the second grasping module of the second grasping module provided by an embodiment of the present invention;

[0024] Figure 16 Schematic three-dimensional structure diagram of the first material distribution module provided by an embodiment of the present invention;

[0025] Figure 17 Schematic three-dimensional structure diagram of the second material distribution module provided by an embodiment of the present invention;

[0026] Figure 18 Exploded structure diagram of the material distribution module provided by an embodiment of the present invention;

[0027] Figure 19 Schematic cross-sectional structure diagram of the magazine provided by an embodiment of the present invention;

[0028] Figure 20 For Figure 18 Partial enlarged view of the structure at A in

[0029] Figure 21 Schematic three-dimensional structure diagram of the secondary positioning module provided by an embodiment of the present invention;

[0030] Figure 22 Exploded structure diagram of the secondary positioning module provided by an embodiment of the present invention;

[0031] Figure 23 Schematic assembly structure diagram of the second gantry adjustment module and the third grasping module provided by an embodiment of the present invention;

[0032] Figure 24 Schematic three-dimensional structure diagram of the manifold welding part provided by an embodiment of the present invention;

[0033] Figure 25 For Figure 24 The first simplified diagram of

[0034] Figure 26 For Figure 24 The second simplified diagram of

[0035] Figure 27 Schematic three-dimensional structure diagram of the battery cell flipping mechanism provided by an embodiment of the present invention.

[0036] Icons: 1. First magnetic drive line; 11. First mover; 12. Cell fixture; 121. Mounting base plate; 1211. Baffle; 1212. Slide shaft; 1213. First reset part; 122. Mover fixture plate; 123. Jaw fixing seat; 1231. Second roller; 1232. Second reset part; 124. Jaw body; 125. Cell seat plate; 1251. Support groove; 126. Cam groove plate; 1261. Second drive chute; 2. Cell loading mechanism; 3. Cell barcode scanning mechanism; 31. First vision component; 32. Pressing plate component; 321. First supporting roller; 322. First lifting plate; 3221. First roller frame; 3222. First driving cylinder; 3223. First integrated board; 3224. First top roller; 323. First bracket plate; 3231. Second guiding shaft; 324. First unlocking plate; 3241. First unlocking rod; 33. Lifting and rotating component; 331. Second supporting roller; 332. Second lifting plate; 3321. Second vertical plate; 3322. Second roller frame; 3323. Second driving cylinder; 3324. Second integrated board; 3325. Second top roller; 333. Second bracket plate; 3331. First vertical plate; 4. First current collector plate welding mechanism; 41. Current collector plate loading part; 410. First gantry adjustment module; 4101. First main frame body; 4102. First gantry; 411. First feeding module; 4111. Roller line assembly; 4112. Tray; 4113. Fixed strip; 4114. Magazine; 41141. Magazine cavity; 41142. Through hole; 412. Material separation module; 4121. First sub-assembly horizontal plate; 41211. Lifting hole; 4122. Reference limit block; 41221. V-shaped groove; 4123. Floating pressing block assembly; 41231. Adjusting seat plate; 41232. Fixed seat plate; 41233. Pressing block; 41234. First limit plate; 41235. First buffer spring; 4124. Material separation component; 41241. Brush; 412411. Pad; 41242. Second sub-assembly horizontal plate; 41243. Transition sleeve; 41244. Guide rail frame; 41245. Sub-assembly lifting frame; 41246. Sub-assembly support plate; 41247. Pressing frame support; 41248. First guiding shaft; 41249. Second buffer spring; 4125. Lifting rod; 41251. Linear slide table module; 413. Secondary positioning module; 4131. Positioning fixture plate; 41311. V-shaped positioning surface; 41312. Longitudinal reference surface; 4132. Positioning push block; 41321. Elastic pressing strip; 4133. Secondary positioning bracket; 4134. Sliding push plate; 41341. Second limit plate; 41342. Third buffer spring; 4135. Transplanter; 414. First grasping module; 4141. First longitudinal backing plate; 4142. First main horizontal plate; 4143. First main longitudinal plate; 4144. Variable pitch connecting plate; 41441. First roller; 4145. First gripper; 4146. Driving plate;41461, First driving chute; 415, Second grasping module; 4151, Second longitudinal backing plate; 4152, Second main transverse plate; 4153, Extension base; 4154, First suction cup; 4155, Series plate; 4156, Vibrator; 4157, Buffer pad; 416, Third grasping module; 417, Frame; 418, Second gantry adjustment module; 4181, Second main frame body; 4182, Second gantry; 419, Second feeding module; 4191, Second magnetic drive line; 4192, Second mover; 4193, Positioning plate; 4194, First positioning pin; 42, Current collector plate welding part; 421, Galvo module; 4211, Laser beam; 422, Rotary table module; 4221, Motor mounting base; 4222, Rotary disk; 42221, Welding copper nozzle; 42222, Second positioning pin; 42223, Cell clamping plate; 4223, DD motor; 423, Loading module; 4231, Welding base; 4232, PPU handling manipulator; 424, Driving push plate; 4241, Cell push block; 4242, Fixture push block; 5, Cell flipping mechanism; 51, Third main frame body; 52, Third gantry; 53, Suspension; 54, Integrated frame; 541, Mechanical gripper; 55, Second unlocking plate; 56, Second unlocking rod; 6, Second current collector plate welding mechanism; 71, Short-circuit testing mechanism; 72, Pressing mechanism; 73, Length detection mechanism; 74, Dust removal mechanism; 75, Cell detection mechanism; 76, Cell unloading mechanism; a, Positive current collector plate; a1, Positioning hole; b, Cell body; X, First direction; Y, Second direction.; Detailed implementation manners

[0037] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0038] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0040] Please refer to Figures 1 to 27, A cylindrical battery cell current collector plate welding device, comprising a first magnetic drive line 1 and a battery cell feeding mechanism 2, a battery cell code scanning mechanism 3, a first current collector plate welding mechanism 4, a battery cell flipping mechanism 5, a second current collector plate welding mechanism 6, a short circuit testing mechanism 71, a pressing mechanism 72, a length detection mechanism 73, a dust removal mechanism 74, a battery cell detection mechanism 75 and a battery cell discharging mechanism 76 arranged in sequence along the conveying direction of the first magnetic drive line 1. Among them: The first magnetic drive line 1 includes a number of first movers 11, and a battery cell clamp 12 is assembled on the first mover 11 for assembling the battery cell body b. The first mover 11 carries the battery cell starting from the battery cell feeding mechanism 2, and successively passes through the battery cell code scanning mechanism 3, the first current collector plate welding mechanism 4, the battery cell flipping mechanism 5, the second current collector plate welding mechanism 6, the short circuit testing mechanism 71, the pressing mechanism 72, the length detection mechanism 73, the dust removal mechanism 74 and the battery cell detection mechanism 75 to the battery cell discharging mechanism 76 to complete the welding of the positive and negative current collector plates of the battery cell and the post-welding detection work; Current collector plate feeding mechanisms are correspondingly arranged at both the first current collector plate welding mechanism 4 and the second current collector plate welding mechanism 6. In this embodiment, the first magnetic drive line 1 is a closed return line. After the battery cell body b is loaded onto the first magnetic drive line 1, the current collector plate welding, as well as post-welding processes such as battery cell short circuit detection, battery cell pressing, battery cell length detection, battery cell post-welding dust removal and battery cell appearance defect detection, can be successively completed along the structural path of the first magnetic drive line 1. The integration degree is high, and the battery cell current collector plate welding and the entire post-welding process flow are completed on the same conveying mechanism, that is, the first magnetic drive line 1, improving the efficiency.

[0041] As Figures 2 to 5 shown, the battery cell code scanning mechanism 3 includes a first vision component 31, and a pressing plate component 32 and a lifting and rotating component 33 arranged oppositely. The first mover 11 at the battery cell code scanning mechanism 3 is located between the pressing plate component 32 and the lifting and rotating component 33. The first vision component 31 is arranged above the lifting and rotating component 33 for detecting the battery cell body b at the battery cell code scanning mechanism 3; The pressing plate component 32 includes a first lifting roller group, and the lifting and rotating component 33 includes a second lifting roller group corresponding to the first lifting roller group. The battery cell body b on the first mover 11 is located between the first lifting roller group and the second lifting roller group. The first lifting roller group and the second lifting roller group can lift the battery cell body b longitudinally, and the first lifting roller group and / or the second lifting roller group can drive the battery cell body b to rotate self. In this embodiment, optionally, the second lifting roller group provides driving force to realize the self-rotation of the battery cell body b. It should be noted that the number of the first vision components 31 corresponds one-to-one to the number of the battery cell bodies b at the battery cell code scanning mechanism 3.

[0042] Specifically, the first lifting roller group includes a first lifting plate 322 and two first rollers 321. The first lifting plate 322 can move longitudinally. The extending direction of the first rollers 321 is parallel to the axial direction of the battery cell body b at the battery cell scanning mechanism 3. The two first rollers 321 can follow the first lifting plate 322 to move longitudinally to lift the battery cell body b. The second lifting roller group includes a second lifting plate 332 and two second rollers 331 corresponding to the two first rollers 321 one by one. The second rollers 331 are parallel to the first rollers 321. The second lifting plate 332 can move longitudinally. The two second rollers 331 can follow the second lifting plate 332 to move longitudinally to lift the battery cell body b. As Figure 3 and Figure 4 shown, the first lifting roller group and the second lifting roller group correspondingly provide an upward supporting force in the longitudinal direction at the two ends of the battery cell body b in the axial direction, and the first lifting plate 322 and the second lifting plate 332 move longitudinally so that the first rollers 321 and the second rollers 331 can drive the battery cell body b longitudinally to disengage from the battery cell fixture 12, which can avoid the interference of the battery cell fixture 12 and is more conducive to the rotation of the battery cell body b, thereby facilitating the first vision component 31 to identify the battery cell body b.

[0043] As Figure 3 shown, a first roller frame 3221 is arranged on the first lifting plate 322, and the first rollers 321 are rotatably installed on the first roller frame 3221; As Figure 4 shown, a second roller frame 3322 is arranged on the second lifting plate 332, and the second rollers 331 are rotatably installed on the second roller frame 3322. In this embodiment, in order to improve work efficiency, there are three pressing plate assemblies 32 and three lifting and rotating assemblies 33 respectively. On a single pressing plate assembly 32, there are four first lifting roller groups, correspondingly lifting four battery cell bodies b. Optionally, on a single pressing plate assembly 32, the four first lifting roller groups share the same first lifting plate 322, or in other words, the first lifting plates 322 of the four first lifting roller groups are integrally connected. In this way, it is convenient to drive eight first rollers 321 to move synchronously in the longitudinal direction by one cylinder, which reduces costs and improves accuracy at the same time. Correspondingly, on a single lifting and rotating assembly 33, there are four second lifting roller groups, and the four second lifting roller groups share the same second lifting plate 332, or in other words, the second lifting plates 332 of the four second lifting roller groups are integrally connected. The purpose is the same as the integral structure of the first lifting plate 322, and will not be elaborated here.

[0044] In this embodiment, a synchronous pulley is arranged at the tail end of the second roller 331. On the same lifting and rotating assembly 33, two adjacent second rollers 331 are connected by synchronous belt drive. A motor is assembled on the second lifting plate 332, and this motor drives all the second rollers 331 of the same lifting and rotating assembly 33 to rotate, so as to drive the battery cell body b on the second rollers 331 to rotate.

[0045] As Figure 3 shown, the pressing plate assembly 32 further includes a first bracket plate 323. A second guide shaft 3231 is longitudinally extended and arranged on the first bracket plate 323. The second guide shaft 3231 penetrates through the first lifting plate 322 and is slidably connected thereto. In this embodiment, the first lifting plate 322 is driven by a cylinder to move longitudinally. Specifically, the cylinder body is installed on the first lifting plate 322, and the free end of the piston rod is fixed to the first bracket plate 323.

[0046] As Figure 4 and Figure 5 shown, the jacking and rotating assembly 33 further includes a second bracket plate 333. A first longitudinal vertical plate 3331 is longitudinally upward extended and arranged on the second bracket plate 333. A second longitudinal vertical plate 3321 is longitudinally downward extended and arranged on the second lifting plate 332. The second longitudinal vertical plate 3321 and the first longitudinal vertical plate 3331 are slidably connected by a slide rail and slider assembly. The second lifting plate 332 is driven by a cylinder arranged between the second lifting plate 332 and the second bracket plate 333 to achieve longitudinal movement.

[0047] In this embodiment, the pressing plate assembly 32 further includes a first top wheel 3224, and the first top wheel 3224 is adjustably installed on the first lifting plate 322; the jacking and rotating assembly 33 further includes a second top wheel 3325 arranged opposite to the first top wheel 3224, and the second top wheel 3325 is adjustably installed on the second lifting plate 332; the battery cell body b is located between the first top wheel 3224 and the second top wheel 3325, and the first top wheel 3224 and the second top wheel 3325 can approach or move away from each other. As Figure 3 shown, a first driving cylinder 3222 is assembled on the upper side surface of the first lifting plate 322. A first integrated plate 3223 is assembled on the piston rod of the first driving cylinder 3222. The first top wheel 3224 is rotatably installed on the first integrated plate 3223. As Figure 4 shown, a second driving cylinder 3323 is assembled on the second roller bracket 3322. A second integrated plate 3324 is assembled on the piston rod of the second driving cylinder 3323. The second top wheel 3325 is rotatably installed on the second integrated plate 3324. The first driving cylinder 3222 and the second driving cylinder 3323 act on the first integrated plate 3223 and the second integrated plate 3324 correspondingly, so that the first top wheel 3224 and the second top wheel 3325 can approach or move away from each other, thereby limiting the battery cell body b in the axial direction of the battery cell body b, so that the battery cell body b is accurately within the detection range of the first vision assembly 31.

[0048] In this embodiment, a first unlocking plate 324 is slidably mounted on the first bracket plate 323 through a slide rail-slider assembly. A first unlocking rod 3241 is assembled on the first unlocking plate 324. The first unlocking rod 3241 extends towards the jacking and rotating assembly 33. The first unlocking rod 3241 is used to unlock the battery cell fixture 12. As Figure 3 shown, the first unlocking plate 324 is located between the first bracket plate 323 and the first lifting plate 322. The first unlocking rods 3241 are arranged in one-to-one correspondence with the battery cell fixtures 12. The first unlocking plate 324 is driven by a cylinder arranged on the first bracket plate 323 to abut against or disengage from the battery cell fixtures 12. The first unlocking rod 3241 is used to unlock the battery cell fixtures 12 so that the battery cell body b can be acted upon by the first roller 321 and the second roller 331 to adjust the spatial position and self-rotation.

[0049] As Figure 6 and 7 shown, the battery cell fixture 12 includes a mounting base plate 121. A mover fixture plate 122 is slidably assembled on the mounting base plate 121. The sliding direction of the mover fixture plate 122 relative to the mounting base plate 121 is parallel to the axial direction of the battery cell body b on the battery cell fixture 12. Two jaw fixing seats 123 are arranged on the upper side of the mover fixture plate 122. The two jaw fixing seats 123 are arranged oppositely and are both slidably connected to the mover fixture plate 122 through a slide rail-slider assembly. The two jaw fixing seats 123 can move closer to or away from each other. The moving direction of the jaw fixing seats 123 is perpendicular to the sliding direction of the mover fixture plate 122 relative to the mounting base plate 121. A jaw body 124 is assembled on the jaw fixing seat 123. During use, the battery cell body b is located above the mover fixture plate 122 and is locked by the two jaw bodies 124. The mover fixture plate 122 can slide relative to the mounting base plate 121. Thus, without changing the locking state of the battery cell body b by the jaw bodies 124, the spatial position of the battery cell can be changed in the axial direction of the battery cell body b by the movement of the mover fixture plate 122, which is convenient for the battery cell body b to cooperate with the first current collector plate welding mechanism 4 and the second current collector plate welding mechanism 6 on the first magnetic drive line 1 to perform the welding of the current collector plate, without the need for blanking and re-assembly, improving the working efficiency.

[0050] Further, two baffles 1211 are arranged on the upper side of the mounting base plate 121. The mover fixture plate 122 is located between the two baffles 1211. A first reset member 1213 is arranged between the mover fixture plate 122 and one of the baffles 1211. The first reset member 1213 acts on the mover fixture plate 122 to enable the cell fixture 12 to be in the transportation state. Optionally, in some embodiments, the mover fixture plate 122 is slidably connected to the mounting base plate 121 through a slide rail and slider assembly. In this embodiment, in order to reduce the longitudinal dimension of the cell fixture 12, a slide shaft 1212 is arranged between the two baffles 1211. The slide shaft 1212 penetrates through the mover fixture plate 122, and the mover fixture plate 122 is slidably connected to the slide shaft 1212. Optionally, the first reset member 1213 is a spring. When in use, that is, when welding the current collector plate to the cell body b, the mover fixture plate 122 is driven by an external force to slide relative to the mounting base plate 121 so that the cell body b is attached to the current collector plate. At this time, the first reset member 1213 is compressed (the first reset member 1213 is installed between the mover fixture plate 122 and the baffle 1211 arranged on the side close to the current collector plate). After welding is completed, the external force acting on the mover fixture plate 122 is removed, and the first reset member 1213 acts on the mover fixture plate 122 to reset it, thereby enabling the cell fixture 12 to return to the transportation state and continue to move to the next station following the first mover 11. In other embodiments, the first reset member 1213 can also be a cylinder or an electric cylinder arranged on the baffle 1211 to drive the mover fixture plate 122 to move so that the cell fixture 12 can be switched between the welding state and the transportation state.

[0051] As Figure 6 shown, a cell base plate 125 is arranged on the mover fixture plate 122. A supporting groove 1251 for accommodating the cell body b is arranged on the cell base plate 125. Preferably, there are two cell base plates 125. The jaw fixing seat 123 is located between the two cell base plates 125. The supporting groove 1251 is an arc groove to adapt to a cylindrical cell.

[0052] As Figure 6As shown, a cam groove plate 126 is slidably assembled on the mover fixture plate 122, and the movement direction of the cam groove plate 126 is perpendicular to the movement direction of the jaw fixing seat 123; a second roller 1231 is arranged on the jaw fixing seat 123, and a second driving inclined groove 1261 adapted to the second roller 1231 is formed on the cam groove plate 126. The second roller 1231 is assembled in the second driving inclined groove 1261, and the cam groove plate 126 moves relative to the mover fixture plate 122 to drive the jaw fixing seat 123 to move so that the battery cell fixture 12 switches between the locked state and the unlocked state. In this embodiment, the cam groove plate 126 is slidably connected to the mover fixture plate 122 through a slide rail and slider assembly. By driving the cam groove plate 126, the jaw fixing seat 123 is driven to move through the second driving inclined groove 1261 and the second roller 1231, that is, by applying an external force to the cam groove plate 126, the battery cell fixture 12 can be switched between the locked state and the unlocked state.

[0053] In some embodiments, a second reset member 1232 is arranged between the battery cell seat plate 125 and the cam groove plate 126, and the second reset member 1232 acts on the cam groove plate 126 so that the battery cell fixture 12 has a tendency to maintain the locked state. Specifically, as Figure 6 shown, optionally, the second reset member 1232 is a spring. During use, the first unlocking rod 3241 in the foregoing moves towards the battery cell fixture 12 and drives the cam groove plate 126 to move to compress the second reset member 1232, so that the battery cell fixture 12 is in the unlocked state. After the operation is completed, the first unlocking rod 3241 resets, and the second reset member 1232 acts on the cam groove plate 126 to make it reset, and the battery cell fixture 12 switches to the locked state, realizing self-locking of the battery cell fixture 12.

[0054] Of course, in other embodiments, the first unlocking rod 3241 in the foregoing may not be provided. At this time, a cylinder or an electric cylinder is arranged on the mounting base plate 121 or the battery cell seat plate 125 to drive the cam groove plate 126 to move, and the battery cell fixture 12 can also be switched between the locked state and the unlocked state.

[0055] As Figures 8 to 26As shown in the figure, the first current collector plate welding mechanism 4 includes an adjacent current collector plate loading section 41 and a current collector plate welding section 42, and the first magnetic drive wire 1 passes between the current collector plate loading section 41 and the current collector plate welding section 42; the current collector plate loading section 41 includes a first feeding module 411, a material distribution module 412, a secondary positioning module 413, and a second feeding module 419 arranged in sequence, and also includes a first grasping module 414, a second grasping module 415, and a third grasping module 416, where: the first feeding module 411 includes a plurality of magazines 4114, and a plurality of current collector plates are stacked longitudinally on the magazines 4114, and the first grasping module 414 is used to transfer the magazine 4114 of the first feeding film module to the material distribution module 412; the second grasping module 415 is used to transfer the current collector plates on the magazine 4114 at the material distribution module 412 to the secondary positioning module 413 to perform secondary positioning on the current collector plates; the third grasping module 416 is used to transfer the current collector plates at the secondary positioning module 413 to the second feeding module 419; the second feeding module 419 is used to provide current collector plates for the current collector plate welding section 42. Here, the material distribution module 412 is used to avoid adhesion of multiple current collector plates, ensure the picking accuracy. For the picked current collector plates, after repositioning by the secondary positioning module 413, they are accurately transferred to the second feeding module 419 by the third grasping module 416, thus ensuring the feeding accuracy of the current collector plates and being beneficial to ensuring the welding accuracy.

[0056] Specifically, as Figure 11 shown in the figure, the first feeding module 411 includes a tray 4112 and a fixing bar 4113, a plurality of fixing bars 4113 are arranged at intervals along the first direction X, the fixing bars 4113 extend along the second direction Y, and a plurality of magazines 4114 are arranged at intervals along the extending direction of the fixing bars 4113; the first direction X and the second direction Y are perpendicular, and both the first direction X and the second direction Y are parallel to the horizontal plane. In this embodiment, the first feeding module 411 further includes a roller line assembly 4111 for transporting the tray 4112 along the first direction X. The fixing bars 4113 are provided with card slots, and the magazines 4114 are embedded in the card slots, and the magazines 4114 can be disengaged from the fixing bars 4113 longitudinally upward.

[0057] As Figure 12 and Figure 13As shown, the first grasping module 414 includes a first longitudinal backing plate 4141 and a pitch-changing assembly. The pitch-changing assembly is longitudinally adjustably assembled to the first longitudinal backing plate 4141 through a linear module. The first longitudinal backing plate 4141 is located above the first feeding module 411 and the material distributing module 412, and the first longitudinal backing plate 4141 can move in the first direction X and the second direction Y. The pitch-changing assembly includes a first main transverse plate 4142 and a first main longitudinal plate 4143 which are connected to each other. The first main transverse plate 4142 is longitudinally adjustably assembled to the first longitudinal backing plate 4141 through a linear module, and the first main longitudinal plate 4143 is located below the first main transverse plate 4142. A plurality of pitch-changing connecting plates 4144 are arranged at intervals along the second direction Y on the first main longitudinal plate 4143. A first gripper 4145 for gripping the magazine 4114 is arranged on the pitch-changing connecting plate 4144. The pitch-changing connecting plate 4144 is movably arranged on the first main longitudinal plate 4143 along the second direction Y. In this embodiment, a finger cylinder is assembled on the pitch-changing connecting plate 4144, and the first gripper 4145 is driven by the finger cylinder to grip the magazine 4114. With such an arrangement, the density of the magazines 4114 on the fixing strip 4113 can be increased, facilitating feeding. When the magazine 4114 is transferred to the material distributing module 412, the distance between two adjacent magazines 4114 can be quickly adjusted, so as to facilitate the smooth assembly of the magazine 4114 to the material distributing module 412.

[0058] As Figure 13As shown, the pitch-changing assembly further includes a drive plate 4146 that is longitudinally adjustably assembled to the first main longitudinal plate 4143. The pitch-changing connecting plate 4144 is slidably connected to the first main longitudinal plate 4143 through a slide rail-slider assembly. Specifically, the pitch-changing connecting plate 4144 can slide relative to the first main longitudinal plate 4143 in the second direction Y. The pitch-changing connecting plate 4144 is located between the first main longitudinal plate 4143 and the drive plate 4146. A first roller 41441 is arranged on the pitch-changing connecting plate 4144, and a first drive inclined groove 41461 adapted to the first roller 41441 is arranged on the drive plate 4146. The first roller 41441 is assembled in the first drive inclined groove 41461. When the drive plate 4146 moves longitudinally, the first drive inclined groove 41461 acts on the first roller 41441 to cause the pitch-changing connecting plate 4144 to move in the second direction Y. A number of first drive inclined grooves 41461 correspond one-to-one to a number of pitch-changing connecting plates 4144. In the second direction Y, the inclination degree of the first drive inclined groove 41461 gradually decreases from both ends to the middle, and the inclination directions of the first drive inclined grooves 41461 on both sides of the middle are opposite. In this embodiment, the drive plate 4146 is slidably connected to the first main longitudinal plate 4143 through a slide rail-slider assembly. The drive plate 4146 is driven by a cylinder arranged on the first main transverse plate 4142 to slide longitudinally relative to the first main longitudinal plate 4143. Optionally, there are eight first drive inclined grooves 41461, corresponding to eight pitch-changing connecting plates 4144, that is, the first grasping module 414 can transfer eight magazines 4114 at a time. As Figure 13 As shown, the first drive inclined grooves 41461 are divided into left and right groups, with four in each group. The left and right groups of first drive inclined grooves 41461 are symmetrically arranged. The inclination degree of the first drive inclined groove 41461 represents the driving distance of the pitch-changing connecting plate 4144. That is, when the drive plate 4146 moves the same longitudinal distance, the greater the inclination degree of the first drive inclined groove 41461, the greater the distance that the pitch-changing connecting plate 4144 corresponding to the first drive inclined groove 41461 is driven to move in the second direction Y. In the second direction Y, the inclination degree of the first drive inclined groove 41461 gradually decreases from both ends to the middle. That is, in the second direction Y, the pitch-changing connecting plates 4144 near the middle have a smaller movement amplitude than those on both sides, so that the eight pitch-changing connecting plates 4144 can be evenly dispersed, and then it is convenient to correspondingly assemble the magazines 4114 to the material distribution module 412.

[0059] As Figure 14 and Figure 15As shown, the second grasping module 415 includes a second longitudinal backing plate 4151 and a second main transverse plate 4152. The second main transverse plate 4152 is assembled to the second longitudinal backing plate 4151 in an adjustable manner along the longitudinal direction through a linear module. A plurality of extension seats 4153 are provided on the second main transverse plate 4152, and a first suction cup 4154 is arranged on the extension seat 4153. The first suction cup 4154 is used to grasp the current collector plate. The second grasping module 415 further includes a vibrator 4156, and the vibrator 4156 is connected to the extension seat 4153. Optionally, the vibrator 4156 is a pneumatic vibrator 4156, which is used to generate jitter during the process of the first suction cup 4154 grasping the current collector plate, so as to prevent the adhesion of two adjacent current collector plates and affect the material taking.

[0060] As Figure 15 shown, in order to reduce costs, at least two extension seats 4153 are connected through a series plate 4155, and the vibrator 4156 is installed on the series plate 4155.

[0061] As Figure 14 shown, the second main transverse plate 4152 and the extension seat 4153 are connected through a buffer pad 4157. Optionally, the buffer pad 4157 is supported by elastic rubber or silica gel, which can absorb the vibration energy of the extension seat 4153 to avoid its large amount of transmission to the second main transverse plate 4152 and affect the normal operation of the second grasping module 415.

[0062] As Figure 9 and Figure 12 shown, the current collector plate feeding part 41 further includes a first gantry adjustment module 410. Both the first grasping module 414 and the second grasping module 415 are assembled to the first gantry adjustment module 410. Specifically, the first gantry adjustment module 410 includes a first main frame body 4101 and a first gantry 4102. The first gantry 4102 is assembled to the top of the first main frame body 4101 through a linear module. This linear module drives the first gantry 4102 to move relative to the first main frame body 4101 along the second direction Y. Both the first grasping module 414 and the second grasping module 415 are installed on the first gantry 4102 through a linear module and are driven by it to move relative to the first gantry 4102 along the first direction X. Specifically, both the first longitudinal backing plate 4141 and the second longitudinal backing plate 4151 are assembled to the first gantry 4102 through a linear module.

[0063] In another embodiment, the first longitudinal backing plate 4141 and the second longitudinal backing plate 4151 can also be slidably connected to the first gantry 4102 through a slide rail-slider assembly and driven to move by a driving member such as a cylinder or an electric cylinder provided on the first gantry 4102. Through the first gantry adjustment module 410, the position adjustment of the first grasping module 414 and the second grasping module 415 in the first direction X and the second direction Y can be realized.

[0064] AsFigures 16 to 18 As shown, the material distribution module 412 includes a first sub-loading transverse plate 4121, a reference limit block 4122, a floating pressure block assembly 4123 and a material distribution assembly 4124, wherein: the first sub-loading transverse plate 4121 is penetrated with a jacking hole 41211, the reference limit block 4122 and the floating pressure block assembly 4123 are both assembled on the upper side of the first sub-loading transverse plate 4121, and the clip 4114 in the material distribution module 412 is assembled on the reference limit block 4122 and the floating pressure block assembly 41 23, a lifting rod 4125 is embedded in the lifting hole 41211, and the lifting rod 4125 can move longitudinally to extend into the clip 4114, and drive the collecting plate in the clip 4114 to move longitudinally toward the material distribution component 4124; the material distribution component 4124 includes two row brushes 41241 arranged on the top of the clip 4114, the two row brushes 41241 are arranged opposite to each other, and a material distribution channel is formed between the two row brushes 41241, and the width of the material distribution channel is smaller than the diameter of the collecting plate. In this embodiment, the lifting rod 4125 is driven to move longitudinally by the linear slide module 41251 arranged on the first sub-loading cross plate 4121. When in use, the clip 4114 is transported to the first sub-loading cross plate 4121 by the first grabbing module 414, and is clamped and limited by the reference limit block 4122 and the floating clamping block assembly 4123. It should be noted that there are a plurality of lifting holes 41211, which are arranged at intervals on the first sub-assembly horizontal plate 4121 along the second direction Y, and one magazine 4114 corresponds to one lifting hole 41211. Figure 19 As shown, a bullet cavity 41141 is arranged in the clip 4114, and a through hole 41142 is provided through the bottom of the bullet cavity 41141. The bullet cavity 41141 is used to stack the current collecting plates. The diameter of the through hole 41142 is smaller than the diameter of the bullet cavity 41141 and the diameter of the current collecting plates. Therefore, the current collecting plates will not leak out from the through hole 41142 during transportation. When in use, when the bullet clip 4114 is assembled on the first sub-assembly horizontal plate 4121, the through hole 41142 corresponds to and communicates with the lifting hole 41211, and the lifting rod 4125 can move longitudinally to extend into or out of the bullet cavity 41141 through the through hole 41142. More specifically, when feeding is required, the lifting rod 4125 lifts the stacked collecting plates upward in the longitudinal direction, and the top collecting plate reaches the material distribution component 4124. The first suction cup 4154 of the second grabbing module 415 grabs the top collecting plate, and with the joint action of the vibrator 4156 and the exhaust brush 41241, it is ensured that the top collecting plate and the adjacent collecting plate can be separated smoothly.

[0065] Furthermore, a V-shaped groove 41221 for limiting the position of the spring clip 4114 is formed on one side of the reference limit block 4122 facing the floating pressing block assembly 4123. The V-shaped groove 41221 is used for limiting the position of the spring clip 4114.

[0066] like Figure 16, Figure 18 and Figure 20 As shown, the floating pressing block assembly 4123 includes an adjusting seat plate 41231 adjustably arranged on the upper side of the first sub-assembly transverse plate 4121, a fixed seat plate 41232 is arranged on the adjusting seat plate 41231, a pressing block 41233 is slidably mounted on the fixed seat plate 41232, a first limiting plate 41234 is arranged at one end of the fixed seat plate 41232 away from the reference limit block 4122, the pressing block 41233 is between the first limiting plate 41234 and the reference limit block 4122, and a first buffer spring 41235 is arranged between the pressing block 41233 and the first limiting plate 41234. In this embodiment, the adjusting seat plate 41231 is slidably assembled on the first sub-assembly transverse plate 4121 through the slide rail slider assembly, and is driven by the cylinder assembled on the first sub-assembly transverse plate 4121 to approach or move away from the reference limit block 4122. In order to facilitate driving, in this embodiment, the adjustment seat plates 41231 of the plurality of floating pressing block assemblies 4123 can be designed as one piece, which is conducive to reducing costs. When the clip 4114 needs to be clamped, the cylinder drives the adjustment seat plate 41231 to move toward the reference limit block 4122. When the pressing block 41233 abuts against the clip 4114, the first buffer spring 41235 is compressed to absorb energy, thereby achieving flexible abutment between the pressing block 41233 and the clip 4114, and avoiding rigid contact between the two while pressing the clip 4114, thereby preventing damage to the equipment.

[0067] In this embodiment, the material distribution component 4124 also includes a second loading horizontal plate 41242, and the second loading horizontal plate 41242 is located on the upper side of the first loading horizontal plate 4121, and the magazine 4114 assembled on the material distribution module 412 is located between the first loading horizontal plate 4121 and the second loading horizontal plate 41242; the second loading horizontal plate 41242 is equipped with a transition sleeve 41243 corresponding to the magazine 4114, and the transition sleeve 41243 passes through the second loading horizontal plate 41242, and the brush 41241 at least partially extends to the outlet end of the transition sleeve 41243. When in use, the transition sleeve 41243 abuts against the outlet of the clip 4114 in the longitudinal direction and communicates with the bullet cavity 41141 of the clip 4114. The current collecting disc in the bullet cavity 41141 enters the transition sleeve 41243 under the drive of the lifting rod 4125. The first suction cup 4154 passes through the gap between the two brushes 41241 and extends into the sleeve to grab the current collecting disc. In the process of grabbing and separating the uppermost current collecting disc from the transition sleeve 41243, the current collecting discs adjacent to the current collecting disc are ensured to be separated and cannot be separated from the transition sleeve 41243 under the action of the brushes 41241.

[0068] Furthermore, if Figure 16As shown in the figure, a guide rail frame 41244 is arranged on the upper side of the first sub-packaging horizontal plate 4121. A sub-packaging lifting frame 41245 is longitudinally adjustably assembled on the guide rail frame 41244. The second sub-packaging horizontal plate 41242 is adjustably arranged on the sub-packaging lifting frame 41245. Specifically, the second sub-packaging horizontal plate 41242 is slidably installed on the top of the sub-packaging lifting frame 41245 through a slide rail and slider assembly, and is driven by a cylinder arranged on the sub-packaging lifting frame 41245 to move along the first direction X, so as to be displaced from the first sub-packaging horizontal plate 4121, facilitating the loading and unloading of the magazine 4114 on the first sub-packaging horizontal plate 4121. The sub-packaging lifting frame 41245 is longitudinally slidably assembled on the guide rail frame 41244 through a slide rail and slider assembly, and is driven by a cylinder installed on the guide rail frame 41244 to longitudinally adjust the height of the second sub-packaging horizontal plate 41242, that is, to adjust the longitudinal distance between the transition sleeve 41243 and the corresponding magazine 4114. During use, first, the second sub-packaging horizontal plate 41242 is displaced from the first sub-packaging horizontal plate 4121. Subsequently, after the magazine 4114 is assembled on the first sub-packaging horizontal plate 4121, the second sub-packaging horizontal plate 41242 is reset so that the transition sleeve 41243 is coaxially corresponding to the magazine 4114. Then, the height of the second sub-packaging horizontal plate 41242 is lowered so that the transition sleeve 41243 abuts against and communicates with the corresponding magazine 4114.

[0069] As Figure 17 and Figure 18 shown in the figure, two sub-packaging support plates 41246 are arranged on the upper side of the second sub-packaging horizontal plate 41242. The transition sleeve 41243 and the row brush 41241 are located between the two sub-packaging support plates 41246. The row brush 41241 is installed on the sub-packaging support plate 41246 adjacent to the row brush 41241 through a backing plate 412411. The two sub-packaging support plates 41246 are connected by a pressing frame support 41247. The pressing frame support 41247 is located above the transition sleeve 41243. A first guide shaft 41248 is assembled on the transition sleeve 41243. The first guide shaft 41248 penetrates through the pressing frame support 41247 and is slidably connected to it. A second buffer spring 41249 is sleeved outside the first guide shaft 41248. The second buffer spring 41249 is located between the transition sleeve 41243 and the pressing frame support 41247. In this embodiment, an axial shoulder is arranged at the end of the first guide shaft 41248 above the pressing frame support 41247 or a nut is assembled to prevent it from longitudinally disengaging from the pressing frame support 41247 downward. During use, when the second sub-packaging horizontal plate 41242 moves longitudinally downward and approaches the first sub-packaging horizontal plate 4121, rigid contact between the transition sleeve 41243 and the magazine 4114 can be avoided, ensuring that the transition sleeve 41243 abuts tightly against the magazine 4114 while preventing equipment damage.

[0070] As Figure 9 and Figure 10As shown, the upper material part 41 of the current collector tray further includes a frame 417. The first gantry adjustment module 410, the first feeding module 411, the material distribution module 412, the secondary positioning module 413, the second feeding module 419, and the third grasping module 416 are all arranged on the frame 417. The first grasping module 414 and the second grasping module 415 are arranged on the first gantry adjustment module 410.

[0071] As Figure 21 and Figure 22 shown, the secondary positioning module 413 includes a positioning fixture plate 4131 and a positioning push block 4132. The positioning fixture plate 4131 is configured with a longitudinal reference surface 41312 and a V-shaped positioning surface 41311. The longitudinal reference surface 41312 is used to carry the current collector tray, and the V-shaped positioning surface 41311 is arranged facing the positioning push block 4132 for positioning the current collector tray. The positioning push block 4132 can approach or move away from the V-shaped positioning surface 41311. In the longitudinal direction, the positioning push block 4132 is higher than the longitudinal reference surface 41312. During use, the first suction cup 4154 of the second grasping module 415 grabs the current collector tray at the material distribution module 412 and transfers it to the secondary positioning module 413. Specifically, the current collector tray is placed on the longitudinal reference surface 41312. The positioning push block 4132 moves towards the V-shaped positioning surface 41311 to drive the current collector tray towards the V-shaped positioning surface 41311, and the current collector tray is positioned through the V-shaped positioning surface 41311.

[0072] As Figure 21 and Figure 22 shown, the secondary positioning module 413 further includes a secondary positioning bracket 4133. The positioning fixture plate 4131 is arranged on the secondary positioning bracket 4133. A sliding push plate 4134 is slidably assembled on the secondary positioning bracket 4133 through a slide rail-slider assembly. A cylinder is assembled on the secondary positioning bracket 4133, and this cylinder is used to drive the sliding push plate 4134 so that the sliding push plate 4134 can approach or move away from the positioning fixture plate 4131. The positioning push block 4132 is slidably installed on the sliding push plate 4134 through a slide rail-slider assembly. The sliding push plate 4134 is configured with a second limiting plate 41341. The positioning push block 4132 is located between the second limiting plate 41341 and the positioning fixture plate 4131, and a third buffer spring 41342 is arranged between the positioning push block 4132 and the second limiting plate 41341. During use, the sliding push plate 4134 is driven by the cylinder to move towards the positioning fixture plate 4131. When the positioning push block 4132 cooperates with the V-shaped positioning surface 41311 to position the current collector tray, the positioning push block 4132 is stressed to cooperate with the second limiting plate 41341 to compress the third buffer spring 41342, realizing the flexible contact between the positioning push block 4132 and the current collector tray, and the current collector tray can be prevented from being damaged by pressure.

[0073] In some embodiments, an elastic pressing strip 41321 is arranged at one end of the positioning push block 4132 facing the V-shaped positioning surface 41311. The elastic pressing strip 41321 is made of elastic rubber or elastic silica gel, further avoiding damage to the current collector tray.

[0074] Furthermore, the secondary positioning module 413 further includes a transplanting frame 4135. The secondary positioning bracket 4133 is assembled on the transplanting frame 4135. The transplanting frame 4135 is slidably installed on the machine frame 417 through a slide rail-slider assembly and is driven by a linear module arranged on the machine frame 417 to be able to move in the first direction X to approach or move away from the third grasping module 416.

[0075] As Figure 23 shown, the current collector tray loading part 41 further includes a second gantry adjustment module 418 arranged on the machine frame 417. The second gantry adjustment module 418 includes a second main frame body 4181 and a second gantry 4182. The second gantry 4182 is installed on the second main frame body 4181 through a linear module and can be driven by the linear module to move along the first direction X. The third grasping module 416 is adjustably installed on the second gantry 4182 along the longitudinal direction through a linear module. In this embodiment, optionally, the third grasping module 416 has the same structure as the second grasping module 415, and both grasp the current collector tray through a suction cup and transfer it; the difference is that there is no problem of current collector tray sorting for the third grasping module 416, so there is no need to set a vibrator 4156. Therefore, the specific structure of the third grasping module 416 will not be described in detail here.

[0076] As Figure 10 shown, the second feeding module 419 includes a second magnetic drive line 4191. The second magnetic drive line 4191 includes a number of second movers 4192. A positioning plate 4193 is assembled on the second mover 4192. A positioning groove is arranged on the upper side of the positioning plate 4193, and a first positioning pin 4194 is arranged in the positioning groove. The second mover 4192 is used to convey the current collector tray on the positioning plate 4193 to the current collector tray welding part 42. In this embodiment, the current collector tray is circular, the outer shape of the positioning groove matches the outer shape of the current collector tray, and a positioning hole a1 is arranged through the center of the current collector tray to cooperate with the first positioning pin 4194 to position the current collector tray.

[0077] As Figures 24 to 26As shown in the figure, the current collector plate welding part 42 includes a galvanometer module 421, a rotary table module 422, and a loading module 423. The rotary table module 422 is located between the galvanometer module 421 and the loading module 423. The loading module 423 is used to transfer the current collector plate at the second feeding module 419 to the rotary table module 422. The battery cell body b between the rotary table module 422 and the loading module 423 corresponds to the current collector plate on the rotary table module 422, and the battery cell body b can move towards the current collector plate to fit onto the current collector plate. The galvanometer module 421 is used to project a laser beam 4211 to weld the current collector plate and the battery cell body b. Optionally, the loading module 423 includes a welding base 4231 and a PPU handling manipulator 4232 arranged on the welding base 4231. The second magnetic drive line 4191 passes under the welding base 4231, so as to convey the current collector plate to under the PPU handling manipulator 4232 through the second mover 4192. After the PPU handling manipulator 4232 grabs the current collector plate with a suction cup, it rotates 90° to the rotary table module 422. Here, the PPU handling manipulator 4232 is a 90° PPU handling manipulator.

[0078] Further, the rotary table module 422 includes a motor mounting base 4221 and a rotary disk 4222. The rotary disk 4222 is rotatably mounted on the motor mounting base 4221, and the rotation axis of the rotary disk 4222 is parallel to the horizontal plane; at least one welding hole is provided on the rotary disk 4222, and a welding copper nozzle 42221 is assembled in the welding hole. A second positioning pin 42222 is configured on the welding copper nozzle 42221, and the current collector plate on the welding copper nozzle 42221 is sleeved outside the second positioning pin 42222; two battery cell clamping plates 42223 are oppositely arranged on the rotary disk 4222, and the two battery cell clamping plates 42223 can move closer to or away from each other. When the battery cell body b fits onto the current collector plate, the battery cell body b is located between the two battery cell clamping plates 42223. In this embodiment, the rotary disk 4222 is rotatably mounted on the motor mounting base 4221 through a DD motor 4223, and the two battery cell clamping plates 42223 are driven by finger cylinders assembled on the rotary disk 4222, and are used to accurately position the battery cell body b in cooperation with the battery cell fixture 12 when welding the current collector plate and the battery cell body b, so as to ensure the welding accuracy of the current collector plate and the battery cell body b.

[0079] As Figure 26 shown, optionally, four welding holes are provided on the rotary disk 4222, and the four welding holes are evenly distributed around the center of the rotary disk to provide four storage positions on the rotary disk, and the current collector plate loading operation can be carried out while welding, which is beneficial to improving the working efficiency of the equipment.

[0080] During use, the laser beam 4211 generated by the galvanometer module 421 is projected and passes through the welding copper nozzle 42221 to weld the current collector plate and the battery cell body b.

[0081] In some embodiments, in order to improve the stability of the current collector plate assembled on the rotating disk 4222, a negative pressure hole is provided on the welded copper nozzle 42221 to generate negative pressure so as to adsorb and fix the current collector plate.

[0082] In some embodiments, the current collector plate can also be positioned after the two battery cell clamping plates 42223 are relatively close to each other. In this embodiment, there is no need to provide a negative pressure hole on the welded copper nozzle 42221. It should be noted that after reaching the welding station, the two battery cell clamping plates 42223 need to be relatively far apart by a certain distance so that the battery cell body b can be fully attached to the corresponding current collector plate.

[0083] As Figure 25 shown, in this embodiment, a driving push plate 424 is provided on the welding base 4231. An electric core push block 4241 and a fixture push block 4242 are assembled on the driving push plate 424. The driving push plate 424 is driven by a cylinder provided on the welding base 4231 to approach or move away from the rotating disk 4222. Specifically, the driving push plate 424 corresponds to the welding station on the rotating disk 4222. When in use, when the battery cell body b on the first mover 11 is at the welding station, the cylinder acts on the driving push plate 424, so that both the electric core push block 4241 and the fixture push block 4242 move towards the rotating disk 4222. The fixture push block 4242 acts on the battery cell fixture 12, specifically the mover fixture plate 122, so that it transports the battery cell body b towards the current collector plate at the welding station on the rotating disk 4222 until they are attached. The electric core push block 4241 corresponds to the battery cell body b and cooperates with the copper nozzle to limit the battery cell body b in the axial direction of the battery cell body b to ensure that the battery cell body b is sufficiently attached to the current collector plate on the copper nozzle, reducing the risk of false soldering.

[0084] Further, a third guide shaft is provided on the fixture push block 4242. The third guide shaft penetrates through the driving push plate 424 and is slidably connected thereto. A fourth buffer spring is sleeved outside the third guide shaft. The fourth buffer spring is located between the fixture push block 4242 and the driving push plate 424. In this embodiment, during the process of the driving push plate 424 moving towards the rotating disk 4222, the fixture push block 4242 first acts on the mover fixture plate 122. During this period, both the first reset member 1213 and the fourth buffer spring are compressed, and the battery cell fixture 12 reaches the welding state. As the fourth buffer spring is continuously compressed, until the electric core push block 4241 acts on the battery cell body b, the driving push plate 424 stops moving. After welding is completed, the driving push plate 424 resets, the mover fixture plate 122 of the battery cell fixture 12 resets, and the battery cell fixture 12 returns to the transportation state. The rotating disk 4222 rotates 90° to supply the next current collector plate, and the first magnetic drive line 1 drives the first mover 11 to move so that the next battery cell body b reaches the welding station, and the foregoing actions are repeated.

[0085] In this embodiment, the second current collector plate welding mechanism 6 and the first current collector plate welding mechanism 4 have the same structure. The first current collector plate welding mechanism 4 is used to complete the welding of the battery cell body b and the positive current collector plate a, and the second current collector plate welding mechanism 6 is used to complete the welding of the battery cell body b and the negative current collector plate. A battery cell flipping mechanism 5 is arranged between the first current collector plate welding mechanism 4 and the second current collector plate welding mechanism 6, which is used to flip the battery cell body b welded with the positive current collector plate a by 180° for the welding of the negative current collector plate.

[0086] Specifically, as Figure 27 shown, the battery cell flipping mechanism 5 includes a third main frame body 51 and a third gantry 52. The third gantry 52 is slidably installed at the top of the third main frame body 51 through a slide rail slider assembly and is driven by a linear module arranged on the third main frame body 51. A suspension 53 is adjustably arranged longitudinally on the third gantry 52 through a linear module. An integrated frame 54 is rotatably installed on the suspension 53 through a hollow rotary platform. A mechanical gripper 541 for grasping the battery cell body b is assembled on the integrated frame 54; a second unlocking plate 55 is also arranged on one side of the first magnetic drive line 1, and a second unlocking rod 56 for unlocking the battery cell fixture 12 is assembled on the second unlocking plate 55. During use, the battery cell fixture 12 is unlocked by the second unlocking rod 56, the mechanical gripper 541 grasps the battery cell body b, and the hollow rotary platform drives the integrated frame 54 to rotate 180° to flip the battery cell body b and then place it back into the battery cell fixture 12. The working principle of the second unlocking plate 55 and the second unlocking rod 56 here is the same as that of the first unlocking plate 324 and the first unlocking rod 3241, and will not be elaborated here. It should be noted that in subsequent processes, for any station involving unlocking the battery cell fixture 12, the battery cell fixture 12 can be unlocked through the same mechanism as the first unlocking plate 324 and the first unlocking rod 3241.

[0087] In this embodiment, the battery cell loading mechanism 2 is used to transfer the battery cell body b to the battery cell fixture 12 on the first magnetic drive line 1, and the battery cell unloading mechanism 76 is used to unload the battery cell body b on the first magnetic drive line 1. Both of them can be realized by the existing mechanical claws cooperating with the linear module to grasp and spatially transfer the battery cell body b, which is the prior art and will not be elaborated here.

[0088] In this embodiment, the short-circuit test mechanism 71, the pressing mechanism 72, the length detection mechanism 73, the dust removal mechanism 74, and the battery cell detection mechanism 75 are all prior arts. Among them, the short-circuit test mechanism 71 is used to detect whether there is a short-circuit phenomenon in the battery cell after the current collector plate is welded. If there is a short-circuit, it is NG; if it is qualified, it is transported to the pressing mechanism 72 by the first magnetic drive wire 1. The pressing mechanism 72 is used to press the battery cell body b axially to make the length of the battery cell body b meet the requirements for shell insertion. The length detection mechanism 73 is used to detect whether the length of the battery cell body b is qualified. The dust removal mechanism 74 is used to remove the dust on the battery cell body b. The battery cell detection mechanism 75 is used to take pictures of the battery cell body b for defect detection. There is no specific limitation on the above prior art devices in this embodiment.

[0089] The technical means disclosed in the solution of the present invention are not limited to the technical means disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements are also regarded as the protection scope of the present invention.

Claims

1. A cylindrical battery collector plate welding device, characterized in that: It includes a first magnetic drive line and a battery cell feeding mechanism, a battery cell scanning mechanism, a first current collecting disk welding mechanism, a battery cell flipping mechanism, a second current collecting disk welding mechanism, a short circuit testing mechanism, a pressing mechanism, a length detection mechanism, a dust removal mechanism, a battery cell detection mechanism and a battery cell unloading mechanism which are arranged in sequence along the conveying direction of the first magnetic drive line, wherein: the first magnetic drive line includes a plurality of first movers, the first movers are equipped with a battery cell fixture for assembling the battery cell body, the first movers carry the battery cell starting from the battery cell feeding mechanism, and sequentially pass through the battery cell scanning mechanism, the first current collecting disk welding mechanism, the battery cell flipping mechanism, the second current collecting disk welding mechanism, the short circuit testing mechanism, the pressing mechanism, the length detection mechanism, the dust removal mechanism and the battery cell detection mechanism to the battery cell unloading mechanism to complete the welding of the positive and negative current collecting disks of the battery cell; the first current collecting disk welding mechanism and the second current collecting disk welding mechanism are respectively provided with a current collecting disk feeding mechanism.

2. The cylindrical battery collector plate welding equipment according to claim 1, characterized in that: The battery cell code scanning mechanism includes a first visual component, and a pressure plate component and a lifting and rotating component that are arranged opposite to each other. The first mover at the battery cell code scanning mechanism is located between the pressure plate component and the lifting and rotating component. The first visual component is arranged above the lifting and rotating component and is used to detect the battery cell body at the battery cell code scanning mechanism. The pressure plate assembly includes a first lifting roller group, the lifting and rotating assembly includes a second lifting roller group corresponding to the first lifting roller group, the battery cell body on the first mover is between the first lifting roller group and the second lifting roller group, the first lifting roller group and the second lifting roller group can lift the battery cell body in the longitudinal direction, and the first lifting roller group and / or the second lifting roller group can drive the battery cell body to rotate.

3. The cylindrical battery collector plate welding equipment according to claim 2, characterized in that: The first lifting roller group includes a first lifting plate and two first rollers, the first lifting plate can move in the longitudinal direction, the extension direction of the first roller is parallel to the axial direction of the battery cell body at the battery cell scanning mechanism, and the two first rollers can follow the first lifting plate to move in the longitudinal direction to lift the battery cell body; The second lifting roller group includes a second lifting plate and two second rollers corresponding to the two first rollers one by one, the second rollers are parallel to the first rollers, the second lifting plate can move longitudinally, and the two second rollers can follow the second lifting plate to move longitudinally to lift the battery cell body.

4. The cylindrical battery collector plate welding equipment according to claim 3, characterized in that: The pressing plate assembly further includes a first top wheel, which is adjustably mounted on the first lifting plate; the lifting and rotating assembly further includes a second top wheel arranged opposite to the first top wheel, which is adjustably mounted on the second lifting plate; The battery cell body is located between the first top wheel and the second top wheel, and the first top wheel and the second top wheel can be close to or away from each other.

5. The cylindrical battery collector plate welding equipment according to claim 1, characterized in that: The first current collecting plate welding mechanism comprises a current collecting plate feeding portion and a current collecting plate welding portion which are adjacently arranged, and the first magnetic drive line passes through between the current collecting plate feeding portion and the current collecting plate welding portion; The collecting plate feeding part includes a first feeding module, a material distribution module, a secondary positioning module and a second feeding module which are arranged in sequence, and also includes a first grabbing module, a second grabbing module and a third grabbing module, wherein: The first feeding module includes a plurality of clips, and a plurality of collecting plates are stacked on the clips in the longitudinal direction. The first grabbing module is used to transfer the clips of the first feeding film block to the distributing module; the second grabbing module is used to transfer the collecting plates on the clips at the distributing module to the secondary positioning module to perform secondary positioning on the collecting plates; the third grabbing module is used to transfer the collecting plates at the secondary positioning module to the second feeding module; The second material supply module is used for providing a current collecting plate to the current collecting plate welding portion.

6. The cylindrical battery collector plate welding equipment according to claim 5, characterized in that: The first feeding module comprises a tray and a fixing bar, a plurality of fixing bars are arranged at intervals along a first direction, the fixing bar is extended along a second direction, and a plurality of the clips are arranged at intervals along the extension direction of the fixing bar; The first direction and the second direction are perpendicular to each other, and both the first direction and the second direction are parallel to a horizontal plane.

7. The cylindrical battery collector plate welding equipment according to claim 6, characterized in that: The first grabbing module comprises a first longitudinal leaning plate and a variable distance assembly, wherein the variable distance assembly is adjustably mounted on the first longitudinal leaning plate in the longitudinal direction, the first longitudinal leaning plate is located above the first feeding module and the distributing module, and the first longitudinal leaning plate can move in the first direction and the second direction; The pitch-changing assembly comprises a first main transverse plate and a first main longitudinal plate connected to each other, wherein the first main transverse plate is adjustably mounted on the first longitudinal support plate in the longitudinal direction, and the first main longitudinal plate is located below the first main transverse plate; A plurality of variable-distance connecting plates are arranged at intervals on the first main longitudinal plate along the second direction, and a first gripper for clamping a magazine is arranged on the variable-distance connecting plate. The variable-distance connecting plate is movably arranged on the first main longitudinal plate along the second direction.

8. The cylindrical battery collector plate welding equipment according to claim 7, characterized in that: The pitch-changing assembly further comprises a driving plate adjustably mounted on the first main longitudinal plate in the longitudinal direction, the pitch-changing connecting plate is slidably connected to the first main longitudinal plate, the pitch-changing connecting plate is located between the first main longitudinal plate and the driving plate, a first roller is arranged on the pitch-changing connecting plate, a first driving inclined groove adapted to the first roller is arranged on the driving plate, and the first roller is mounted in the first driving inclined groove; When the driving plate moves in the longitudinal direction, the first driving chute acts on the first roller to make the variable pitch connecting plate move in the second direction; A plurality of first driving chute corresponds to a plurality of variable pitch connecting plates one by one; In the second direction, the inclination degree of the first driving inclined groove gradually decreases from both ends to the middle, and the inclination directions of the first driving inclined grooves on both sides of the middle are opposite.

9. The cylindrical battery collector plate welding equipment according to claim 5, characterized in that: The material distribution module includes a first distribution horizontal plate, a reference limit block, a floating pressing block assembly and a material distribution assembly, wherein: A lifting hole is provided through the first sub-loading transverse plate, the reference limit block and the floating pressure block assembly are both mounted on the upper side of the first sub-loading transverse plate, the clip in the material distribution module is mounted between the reference limit block and the floating pressure block assembly, a lifting rod is embedded in the lifting hole, the lifting rod can move longitudinally to extend into the clip, and drive the current collecting plate in the clip to move longitudinally toward the material distribution assembly; The material distribution assembly includes two row brushes arranged on the top of the clip, the two row brushes are arranged opposite to each other, and a material distribution channel is formed between the two row brushes. The width of the material distribution channel is smaller than the diameter of the collecting plate.

10. The cylindrical battery collector plate welding equipment according to claim 9, characterized in that: A V-shaped groove for limiting the spring clip is formed on a side of the reference limiting block facing the floating pressing block assembly.

11. The cylindrical battery collector plate welding equipment according to claim 9, characterized in that: The floating pressure block assembly includes an adjustment seat plate adjustably arranged on the side surface of the first sub-assembly horizontal plate, the adjustment seat plate is provided with a fixed seat plate, a pressure block is slidably installed on the fixed seat plate, a first limit plate is provided at one end of the fixed seat plate away from the reference limit block, the pressure block is between the first limit plate and the reference limit block, and a first buffer spring is arranged between the pressure block and the first limit plate.

12. The cylindrical battery collector plate welding equipment according to claim 9, characterized in that: The material distribution assembly further includes a second distribution horizontal plate, the second distribution horizontal plate is located on the upper side of the first distribution horizontal plate, and the clip assembled on the material distribution module is located between the first distribution horizontal plate and the second distribution horizontal plate; The second sub-loading transverse plate is equipped with a transition sleeve corresponding to the magazine, the transition sleeve passes through the second sub-loading transverse plate, and the exhaust brush at least partially extends to the outlet end of the transition sleeve.

13. The cylindrical battery collector plate welding equipment according to claim 12, characterized in that: A guide rail frame is disposed on the upper side of the first sub-assembly transverse plate, a sub-assembly lifting frame is adjustably mounted on the guide rail frame along the longitudinal direction, and the second sub-assembly transverse plate is adjustably arranged on the sub-assembly lifting frame.

14. The cylindrical battery collector plate welding equipment according to claim 12, characterized in that: The upper side of the second sub-assembly horizontal plate is provided with two sub-assembly support plates, the transition sleeve and the row brush are located between the two sub-assembly support plates, the row brush is installed on the sub-assembly support plate adjacent to the row brush through a pad, the two sub-assembly support plates are connected by a pressing frame bracket, and the pressing frame bracket is located on the upper side of the transition sleeve; The transition sleeve is equipped with a first guide shaft, which passes through the pressure frame bracket and is slidably connected thereto, and the outer sleeve of the first guide shaft is provided with a second buffer spring, which is located between the transition sleeve and the pressure frame bracket.

15. The cylindrical battery collector plate welding equipment according to claim 5, characterized in that: The secondary positioning module includes a positioning fixture plate and a positioning push block, the positioning fixture plate is provided with a longitudinal reference surface and a V-shaped positioning surface, the longitudinal reference surface is used to carry the collector plate, and the V-shaped positioning surface is arranged toward the positioning push block for positioning the collector plate; The positioning push block can be close to or away from the V-shaped positioning surface. In the longitudinal direction, the positioning push block is higher than the longitudinal reference surface.

16. The cylindrical battery collector plate welding equipment according to claim 15, characterized in that: The secondary positioning module also includes a secondary positioning bracket, the positioning fixture plate is arranged on the secondary positioning bracket, and a sliding push plate is mounted on the secondary positioning bracket, and the sliding push plate can be close to or away from the positioning fixture plate; The positioning push block is slidably mounted on the sliding push plate, a second limit plate is arranged on the sliding push plate, the positioning push block is located between the second limit plate and the positioning fixture plate, and a third buffer spring is arranged between the positioning push block and the second limit plate.

17. The cylindrical battery collector plate welding equipment according to claim 5, characterized in that: The second grabbing module comprises a second longitudinal support plate and a second main transverse plate, wherein the second main transverse plate is adjustably mounted on the second longitudinal support plate in the longitudinal direction; The second main horizontal plate is provided with a plurality of extension seats, and the extension seats are provided with first suction cups; The second grabbing module further includes a vibrator connected to the extension seat.

18. The cylindrical battery collector plate welding equipment according to claim 17, characterized in that: The second main transverse plate and the extension seat are connected via a buffer block.

19. The cylindrical battery collector plate welding equipment according to claim 5, characterized in that: The second feeding module includes a second magnetic drive line, which includes a plurality of second movers. A positioning plate is mounted on the second mover. A positioning groove is arranged on the upper side of the positioning plate. A first positioning pin is arranged in the positioning groove. The second mover is used to transport the current collecting plate on the positioning plate to the current collecting plate welding part.

20. The cylindrical battery collector plate welding equipment according to claim 5, characterized in that: The current collecting disk welding part includes a galvanometer module, a rotating table module and a loading module, the rotating table module is located between the galvanometer module and the loading module, the loading module is used to transfer the current collecting disk at the second feeding module to the rotating table module, the battery cell body between the rotating table module and the loading module corresponds to the current collecting disk on the rotating table module, and the battery cell body can move toward the current collecting disk to fit onto the current collecting disk, and the galvanometer module is used to project a laser beam to weld the current collecting disk to the battery cell body.

21. The cylindrical battery collector plate welding device according to claim 20, characterized in that: The rotating platform module comprises a motor mounting seat and a rotating disk, wherein the rotating disk is rotatably mounted on the motor mounting seat, and the rotating axis of the rotating disk is parallel to the horizontal plane; At least one welding hole is provided on the rotating disk, a welding copper nozzle is installed in the welding hole, a second positioning pin is arranged on the welding copper nozzle, and the current collecting disk on the welding copper nozzle is sleeved outside the second positioning pin; Two battery cell clips are arranged on the rotating disk in a relative manner. The two battery cell clips can be relatively close to or far away from each other. When the battery cell body is attached to the current collecting disk, the battery cell body is located between the two battery cell clips.

22. The cylindrical battery collector plate welding equipment according to claim 1, characterized in that: The battery cell fixture comprises a mounting base plate, on which a mover fixture plate is slidably mounted, and a sliding direction of the mover fixture plate relative to the mounting base plate is parallel to the axial direction of the battery cell body on the battery cell fixture; Two clamping seats are arranged on the upper side of the movable clamp plate, the two clamping seats are arranged opposite to each other and both are slidably connected to the movable clamp plate, the two clamping seats can be relatively close to or far away from each other, and the movement direction of the clamping seats is perpendicular to the sliding direction of the movable clamp plate relative to the mounting base plate; a claw body is assembled on the clamping seat.

23. The cylindrical battery collector plate welding equipment according to claim 22, characterized in that: The upper side of the mounting base is provided with two baffles, the movable clamp plate is located between the two baffles, a first reset member is provided between the movable clamp plate and one of the baffles, and the first reset member acts on the movable clamp plate to put the battery cell clamp in a transport state.

24. The cylindrical battery collector plate welding equipment according to claim 22, characterized in that: The mover fixture plate is provided with a cell seat plate, and the cell seat plate is provided with a supporting groove for accommodating the cell body.

25. The cylindrical battery collector plate welding device according to claim 24, characterized in that: The movable clamp plate is slidably mounted with a cam slot plate, and the movement direction of the cam slot plate is perpendicular to the movement direction of the clamping jaw fixing seat; A second roller is arranged on the clamp fixing seat, and a second driving inclined groove adapted to the second roller is opened on the cam slot plate, and the second roller is assembled in the second driving inclined groove. The cam slot plate moves relative to the movable clamp plate to drive the clamp fixing seat to move so that the battery cell clamp is switched between a locked state and an unlocked state.

26. The cylindrical battery collector plate welding device according to claim 25, characterized in that: A second restoring member is arranged between the battery cell seat plate and the cam slot plate, and the second restoring member acts on the cam slot plate so that the battery cell clamp has a tendency to maintain a locked state.

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