Automatic assembling equipment for cylindrical lithium battery

Abstract

The invention discloses automatic cylindrical lithium battery assembling equipment, and relates to the technical field of cylindrical lithium battery production, the automatic cylindrical lithium battery assembling equipment comprises a bottom frame structure, an index plate structure and an assembling structure, the index plate structure is mounted on the bottom frame structure, the index plate structure is provided with a rotating part rotating on the bottom frame structure, and the assembling structure is mounted on the bottom frame structure; a plurality of bearing stations are evenly arranged on the rotating part around the axis of the rotating part at intervals, carrier structures are arranged on the bearing stations and used for limiting and fixing the battery shells, and a plurality of operation stations corresponding to the bearing stations are arranged on the bottom frame structure and used for limiting and fixing the battery shells. The assembly structure comprises a battery cell assembly structure, a protection plate assembly structure and a top cover assembly structure; according to the technical scheme provided by the invention, the installation of each part in the production process of the cylindrical lithium battery is effectively integrated on one generation equipment, the continuous and efficient assembly of the cylindrical lithium battery can be realized, the production efficiency is effectively improved, and the production equipment has a relatively good application value.

Description

Technical Field

[0001] The present invention relates to the technical field of cylindrical lithium battery production, and in particular to an automatic cylindrical lithium battery assembly device. Background Art

[0002] The cylindrical lithium battery structure includes a shell, a battery cell, a protective plate and a top cover structure, wherein a circular end of the shell is an open structure to form an installation cavity inside the shell, and the battery cell is provided with two electrode columns at one end corresponding to the shell opening structure, and the protective plate is installed at one end of the battery cell, so two through holes are provided on the protective plate corresponding to the two electrode columns, and at the same time, a column structure is provided on the protective plate to connect an electrode of the battery cell. Generally, one end of the column structure is located outside the end of the entire cylindrical lithium battery, which belongs to the end of the electrical connection, and the top cover is used to seal one end of the shell opening structure, so a top cover hole is provided on the top cover to allow the column on the protective plate to protrude outward. Because in the process of installation, the column structure and the hole structure on the relevant installation parts need to be installed in coordination, so the assembly process of the relevant structure has certain requirements and difficulties. The traditional assembly method is mostly produced by board automation equipment, and the assembly of some structures, such as the assembly of the protection plate and the battery cell or the assembly of the shell and the battery cell, is mostly supplemented by manual assembly production. This production method is difficult to improve the production efficiency, and it is often difficult to meet the production requirements in the mass production stage. Summary of the invention

[0003] The main purpose of the present invention is to provide an automatic cylindrical lithium battery assembly device, which aims to solve the problems that traditional cylindrical lithium battery assembly equipment has poor integrity and low production efficiency.

[0004] To achieve the above-mentioned purpose, the cylindrical lithium battery automatic assembly equipment proposed by the present invention comprises:

[0005] Bottom frame structure;

[0006] A dividing plate structure is installed on the bottom frame structure, the dividing plate structure has a rotating part rotating on the bottom frame structure, the rotating part is evenly spaced around its axis and a plurality of receiving stations are provided, the plurality of receiving stations are each provided with a carrier structure for limiting and fixing the battery housing, and the bottom frame structure is provided with a plurality of operating stations corresponding to the plurality of receiving stations; and,

[0007] The assembly structure includes a battery cell assembly structure, a protection plate assembly structure and a top cover assembly structure. The battery cell assembly structure, the protection plate assembly structure and the top cover assembly structure are all arranged in sequence at multiple work stations around the dividing plate structure, and are used to assemble the battery cell, protection plate and top cover of the cylindrical lithium battery respectively.

[0008] In one embodiment, the cylindrical lithium battery automatic assembly equipment further includes a shell loading structure, which is installed on one of the working stations corresponding to the middle position between the battery cell assembly structure and the top cover assembly structure, so as to place the cylindrical lithium battery shell on the carrier structure; and / or,

[0009] Each of the carrier structures is provided with at least two limiting holes for fixing at least two lithium battery casings each time.

[0010] In one embodiment, a base is provided on the frame structure, and the battery cell assembly structure includes:

[0011] a feeding structure, disposed on the base; and

[0012] An assembly structure, comprising a clamping structure and a pressing structure, wherein the clamping structure and the pressing structure are both movably mounted on the base, the clamping structure is used to place the battery cell in the battery housing, and the pressing structure is used to press down one end of the battery cell so that the battery cell is installed in place in the battery housing;

[0013] The clamping structure is formed with a material taking station on the base correspondingly, and the loading structure is used to transport the battery cell to the material taking station.

[0014] In one embodiment, the protection plate assembly structure includes:

[0015] A first vibration feeding structure, provided on the bottom frame structure, is used for feeding the protection plate; and

[0016] The protective plate grasping structure includes a first movable module and two protective plate clamping parts. The first movable module is installed on one of the working stations corresponding to the first vibration feeding structure. The first movable module is connected to the two protective plate clamping parts to adjust the horizontal position and vertical position of the two protective plate clamping parts. The protective plate clamping parts are used to clamp the protective plate.

[0017] In one embodiment, a base is provided on the frame structure;

[0018] The protection plate assembly structure also includes:

[0019] Two rotation adjustment parts are both installed on the first moving module, and the two protection plate clamping parts are respectively arranged on the output ends of the two rotation adjustment parts; and,

[0020] A vision correction component, comprising a first vision device and a second vision device, wherein the first vision device is arranged on the base at a position directly above the corresponding carrier structure, and the second vision device is installed on the work station corresponding to the first mobile module, and the first vision device and the second vision device are used to obtain the relative position relationship between the electrode column on the battery cell and the mounting hole on the protection plate;

[0021] The rotation adjustment part is used to adjust the mounting hole on the protection plate to correspond to the electrode column on the battery cell.

[0022] In one embodiment, the protective plate grasping structure includes a clamping drive element and two clamping parts, the drive element is installed at the output end of the rotation adjustment part, the clamping drive element is connected to the two clamping parts, and is used to drive the two clamping parts to move toward or away from each other at the same time, and two arc-shaped fixing grooves corresponding to each other are provided on the opposite end surfaces of the two clamping parts, which are used to fix the columns on the protective plate, and avoidance notches are provided on the two clamping parts, and the avoidance notches are used to make way for the electrode columns on the battery cells.

[0023] In one embodiment, the protective plate assembly structure further includes a welding assembly, and the welding assembly includes:

[0024] A tin spraying structure, comprising a fourth movable module and a tin spraying device, wherein the fourth movable module is installed on one of the working stations corresponding to the side position of the first movable module, and the fourth movable module is connected to the tin spraying device for adjusting the position of the tin spraying device; and

[0025] The welding structure comprises a third movable module and a welding device, wherein the third movable module is installed on an operating station adjacent to the fourth movable module, and the third movable module is connected to the welding device for adjusting the welding position of the output end of the welding device.

[0026] In one embodiment, the top cover assembly structure comprises:

[0027] A fourth mobile module is arranged on one of the working stations;

[0028] A top cover grabbing structure, mounted on the fourth movable module, for grabbing and releasing the top cover, wherein the fourth movable module is used to adjust the position of the top cover grabbing structure; and

[0029] The second vibration feeding structure is arranged on the bottom frame structure corresponding to the fourth movable module, and is used for automatically feeding the top cover.

[0030] In one embodiment, the indexing plate structure comprises:

[0031] A receiving disc is rotatably mounted on the bottom frame structure, and a plurality of receiving stations are correspondingly arranged on the upper end surface of the receiving disc; and,

[0032] a disc driving member, mounted on the bottom frame structure and connected to the receiving disc, for driving the receiving disc to rotate on the bottom frame structure; and / or,

[0033] The top cover assembly structure also includes a third visual device and a fourth visual device. The third visual device is arranged on the bottom frame structure at a position directly above the corresponding carrier structure, and the fourth visual device is installed on the bottom frame structure corresponding to the fourth movable module. The third visual device and the fourth visual device are used to respectively obtain the relative position relationship between the protection plate column and the top cover hole on the top cover.

[0034] In one embodiment, a base is provided on the frame structure;

[0035] The cylindrical lithium battery automatic assembly equipment further includes a cylindrical battery unloading structure, wherein the cylindrical battery unloading structure includes an unloading structure, and the unloading structure is arranged on one of the working stations between the loading structure and the top cover assembly structure;

[0036] The unloading structure includes a material picking structure and a conveying structure, both of which are arranged on the base, the material picking structure is arranged on one side of the conveying structure, and the output end of the material picking structure is arranged above an end of the conveying structure corresponding to the unloading station, so as to transfer the cylindrical batteries on the unloading station to one end of the conveying structure, and the conveying structure is used to transport the cylindrical batteries.

[0037] The technical solution of the present invention can achieve the assembly and production of 3,000 batteries per hour. The equipment uses high-speed slide module, high-speed automatic solder paste, high-speed laser welding, vibration plate feeding, electric gripper material picking, cam divider rotating turntable station, visual inspection, dynamic real-time inspection and other functions. The installation of various components in the production and assembly process of cylindrical lithium batteries is set on a production equipment, forming a fully automatic production structure. In the actual production process, the various structures of the cylindrical battery can be continuously and efficiently assembled, which can effectively improve production efficiency and greatly save labor production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0039] Figure 1 A schematic diagram of the overall appearance of an embodiment of an automatic cylindrical lithium battery assembly device provided by the present invention;

[0040] Figure 2 for Figure 1 A schematic diagram of a top view structure in which an upper frame structure is not provided;

[0041] Figure 3 for Figure 1 Structural schematic diagram of the grabbing structure of the middle protection plate;

[0042] Figure 4 for Figure 3 The enlarged structural diagram at C in the middle;

[0043] Figure 5 for Figure 4 Schematic diagram of the structure of the middle clamping jaw;

[0044] Figure 6 for Figure 1 Structural schematic diagram of the welding structure;

[0045] Figure 7 for Figure 1 A schematic diagram of a portion of the structure of the middle top cover assembly structure;

[0046] Figure 8 for Figure 1 A schematic diagram of the overall structure of an embodiment of a cell assembly structure;

[0047] Fig. 9 for Figure 8 A partial structural enlarged schematic diagram of the battery cell assembly structure provided in;

[0048] Fig.10 for Fig. 9 A partial enlarged view of the middle A;

[0049] Fig.11 for Fig.10 Schematic diagram of the structure of the middle and lower pressure heads;

[0050] Fig.12 for Figure 1 The overall structural diagram of the cylindrical battery blanking structure in FIG.

[0051] Fig.13 for Fig.12 A partial structural enlarged schematic diagram of the cylindrical battery blanking structure provided in;

[0052] Fig.14 for Fig.13 A partial enlarged view of point B in the middle;

[0053] Fig.15 for Fig.12 A structural schematic diagram of another viewing direction of the blanking structure;

[0054] Fig.16 for Fig.13 Schematic diagram of the structure of the medium L-shaped mounting plate.

[0055] Description of Figure Numbers:

[0056] 100. Automatic assembly structure of lithium battery cells; 1. Bottom frame structure; 11. Upper frame structure; 12. Base; 2. Indexing plate structure; 21. Receiving disc; 211. Carrier structure; 2111. Limiting hole; 3. Cell assembly structure; 31. Loading structure; 311. Third linear motor assembly; 312. Material tray structure; 3121. Sinking hole; 313. Tray member; 3131. Baffle member; 314. Support frame; 32. Assembly structure; 321. Clamping structure; 3211. First cylinder; 3211a. Clamping mounting seat; 3212. Clamping device; 3212a. Finger cylinder; 3212b. Clamping claw member; 3212c. Arc groove; 32 2. Pressing structure; 3221. Second cylinder; 3221a. Pressing head mounting seat; 3221b. Slide; 3222. Pressing head; 3222a. Threaded hole; 3222b. Pressing needle; 33. Mounting structure; 331. Frame structure; 3311. First frame; 3312. Second frame; 332. Driving member; 3321. First linear motor assembly; 3322. Second linear motor assembly; 4. Cylindrical battery unloading structure; 41. Retrieving structure; 411. Adjusting assembly; 4111. Mounting member; 4111a. Column member; 4111b. Horizontal guide member; 4111c. L-shaped mounting plate; 4111d. First plate; 4111e. Second plate 4111f, adjustment slot; 4111g, slide plate; 4111h, guide rod; 412, drive member; 4121, first electric push rod; 4122, second electric push rod; 413, grab assembly; 4131, first finger cylinder; 4132, material picking claw; 4132a, flexible clamp; 4132b, arc groove; 42, first mounting portion; 43, second mounting portion; 44, spring rod; 45, slider; 46, transmission structure; 461, support frame; 462, baffle structure; 47, belt feeding assembly; 6, shell feeding structure; 7, protection plate assembly structure; 71, first vibration feeding structure; 72, protection plate grab structure; 721, first moving Moving module; 722, protection plate clamping part; 7221, clamping drive element; 7222, clamping part; 7222a, arc-shaped fixing groove; 7222b, avoidance gap; 73, visual correction component; 731, first visual device; 732, second visual device; 74, rotation adjustment part; 75, welding component; 751, tin spraying structure; 7511, fourth moving module; 7512, tin spraying device; 752, welding structure; 7521, third moving module; 7522, welding device; 8, top cover assembly structure; 81, second moving module; 82, top cover grabbing structure; 83, second vibration feeding structure; 84, third visual device; 85, fourth visual device.

[0057] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0058] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0059] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0060] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0061] The cylindrical lithium battery structure includes a shell, a battery cell, a protective plate and a top cover structure, wherein a circular end of the shell is an open structure to form an installation cavity inside the shell, and the battery cell is provided with two electrode columns at one end corresponding to the shell opening structure, and the protective plate is installed at one end of the battery cell, so two through holes are provided on the protective plate corresponding to the two electrode columns, and at the same time, a column structure is provided on the protective plate to connect an electrode of the battery cell. Generally, one end of the column structure is located outside the end of the entire cylindrical lithium battery, which belongs to the end of the electrical connection, and the top cover is used to seal one end of the shell opening structure, so a top cover hole is provided on the top cover to allow the column on the protective plate to protrude outward. Because in the process of installation, the column structure and the hole structure on the relevant installation parts need to be installed in coordination, so the assembly process of the relevant structure has certain requirements and difficulties. The traditional assembly method is mostly produced by board automation equipment, and the assembly of some structures, such as the assembly of the protection plate and the battery cell or the assembly of the shell and the battery cell, is mostly supplemented by manual assembly production. This production method is difficult to improve the production efficiency, and it is often difficult to meet the production requirements in the mass production stage.

[0062] The present invention provides an automatic cylindrical lithium battery assembly device 100 .

[0063] See also Figures 1 to 14In one embodiment of the present invention, the cylindrical lithium battery automatic assembly equipment 100 is a fully automatic production and assembly equipment. The traditional cylindrical lithium battery includes a shell, a battery cell, a protective plate and a top cover structure, wherein a circular end of the shell is an open structure to form an installation cavity inside the shell, and the battery cell is provided with two electrode columns at one end corresponding to the shell opening structure. The protective plate is installed at one end of the battery cell, so two through holes are provided on the protective plate corresponding to the two electrode columns. At the same time, a column structure is provided on the protective plate to connect an electrode of the battery cell. Generally, one end of the column structure is located outside the end of the entire cylindrical lithium battery, which belongs to the end of the electrical connection. The top cover is used to seal one end of the shell opening structure, so a top cover hole is provided on the top cover to allow the column on the protective plate to protrude outward. Because during the installation process, the column structure and the hole structure on the relevant installation components need to be installed in coordination, so the assembly process of the relevant structure has certain requirements and difficulties. Traditional assembly methods mostly use automated board equipment for production. The assembly of some structures, such as the assembly of protection boards and battery cells or the assembly of casings and battery cells, is mostly assisted by manual assembly. This production method is difficult to improve production efficiency and often cannot meet production needs during mass production. In this embodiment, the cylindrical lithium battery automatic assembly equipment is a fully automatic production equipment, which takes the bottom frame structure 1 as the installation basis, and adopts the indexing plate structure 2 as the transfer structure during the installation process, wherein the upward end face of the rotating part is divided into a plurality of equal receiving stations around its axis, and each receiving station is provided with a carrier structure 211 for fixing the battery shell. During the assembly process, the rotating part rotates intermittently, so that the assembly structure 32 completes the installation of each structure at a plurality of work stations simultaneously. Specifically, the battery cell assembly structure 323, the protection plate assembly structure 7 and the top cover assembly structure 8 are all arranged at a plurality of the work stations around the indexing plate structure 2 in sequence, and are used to assemble the battery cell, the protection plate and the top cover of the cylindrical lithium battery respectively. The indexing plate structure 2 drives the shell to rotate on the bottom frame structure 1 for one circle, so that the installation of the battery cell, the protection plate and the top cover can be completed in sequence. At the same time, since the continuous feeding assembly method is adopted in this embodiment, multiple battery shells can be installed with various components on the indexing plate structure 2 simultaneously, and the overall installation efficiency is effectively improved in the actual assembly process.

[0064] The cylindrical lithium battery automatic assembly equipment also includes a shell feeding structure 6, which includes a third vibration feeding structure 31 and a shell clamp feeding assembly. The third vibration feeding structure 31 is installed on the bottom frame structure 1, and the shell clamp feeding assembly is installed on the corresponding work station. In the actual working process, the third vibration feeding structure 31 drives the shell to move toward the shell clamp feeding assembly during the vibration process, and corrects the posture of the battery shell during the movement, so that the battery shell is vertical and its open end is set upward. The shell clamp feeding assembly clamps two shells at a time and places them in the two limiting holes of the carrier structure 211, thereby completing the automatic feeding of the shell. In this process, a visual detection structure can be set on the bottom frame structure 1 to detect whether the corresponding carrier has moved into place when the carrier moves to the output end discharge position of the shell clamp feeding assembly. At the same time, in this embodiment, the opening end of the limiting hole portion 2111 is provided with a corresponding chamfering structure so that the shell can be better placed in the limiting hole portion 2111.

[0065] After the battery shell is placed in the carrier structure 211 through the shell loading structure 6, the indexing plate structure 2 rotates an angle of the receiving station. At this time, the shell loading structure 6 places the shell on another carrier structure 211, and synchronously, the battery cell assembly structure 323 assembles the battery cell on the shell. Generally speaking, there are two traditional installation methods, one is to manually install the battery cell and shell, and the other is to assemble with the help of semi-automatic equipment. Both of these production methods have the problem of low production efficiency and the battery cell may not be assembled in place. In this embodiment, in view of the problems that may exist in the above actual production process, in the assembly structure 32, a pressing structure 322 is synchronously provided on the clamping structure 321 for assembling the battery cell. In the actual production process, a feeding structure 31 is provided on the base 12, and the battery cell material can be automatically transported to the material taking station through the feeding structure 31. At this time, the clamping structure 321 will clamp the upward end of the battery cell, and then place the battery cell in the inner cavity of the battery shell on the base 12. At this time, in order to install the battery cell in place in the shell, the pressing structure 322 will press down the upward end of the battery cell, so that the battery cell is installed in place in the shell. In this process, it is necessary to know that the gap between the battery shell and the battery cell is limited. If the battery cell is only put in from the open end of the shell, it is sometimes difficult for the battery cell to slide up and down on the inner wall of the shell and install it in place. The relevant structure in this embodiment can solve the above problems well. It can be imagined that when loading the battery shell, a carrier structure 211 is generally provided to fix it. In the actual installation process, a corresponding fixing structure is provided at the assembly station on the base 12 to fix and install the relevant carrier.

[0066] The base 12 is further provided with a mounting structure 33 , on which the clamping structure 321 and the pressing structure 322 are both provided, and the mounting structure 33 is used to adjust the horizontal positions of the clamping structure 321 and the pressing structure 322 .

[0067] A mounting structure 33 is provided on the base 12, and the mounting structure 33 is a movable adjustment structure. The clamping structure 321 and the pressing structure 322 are both mounted on the mounting structure 33. When the battery cell and the shell are assembled, the clamping structure 321 and the pressing structure 322 can be driven by the mounting structure 33 to move on the horizontal plane, so that the material picking position and the material discharging position of the clamping structure 321 in the horizontal direction can be adjusted in real time. Similarly, the actual position of the pressing structure 322 on the horizontal plane is also adjusted by the mounting structure 33.

[0068] The mounting structure 33 includes a frame structure 331 and a driving member 332. The frame structure 331 includes two first frames 3311 and a second frame 3312. The two first frames 3311 are arranged on the base 12 in parallel on both sides of the feeding structure 31. The second frame 3312 is arranged between the two first frames 3311, and one end of the second frame 3312 is slidably connected to one of the first frames 3311. The driving member 332 includes a first driving member 332 and a second driving member 332. The first driving member 332 is installed on another first frame part 3311, and the output end of the first driving member 332 is connected to the other end of the second frame part 3312, so as to drive the second frame part 3312 to move on the first frame part 3311, and the second driving member 332 is installed on the second frame part 3312, and the second driving member 332 is connected to the clamping structure 321 and the pressing structure 322, so as to drive the clamping structure 321 and the pressing structure 322 to move on the second frame part 3312.

[0069] Specifically, the mounting structure 33 includes a frame structure 331 and a driving member 332. The frame structure 331 includes two first frames 3311 and one second frame 3312. When installed, the two first frames 3311 are arranged on the base 12 in parallel on both sides of the feeding structure 31, and one end of the two first frames 3311 is arranged corresponding to the assembly station. In the actual working process, the first driving member 332 installed on one of the first frames 3311 will drive the second frame 3312 to slide on the other first frame 3311, and the clamping structure 321 and the pressing structure 322 are both installed on the output end of the second driving member 332, so when the first driving member 332 and the second driving member 332 work at the same time, they can drive the clamping structure 321 and the pressing structure 322 to adjust their positions in the horizontal plane.

[0070] The first driving member 332 and the second driving member 332 are respectively configured as a first linear motor assembly 3321 and a second linear motor assembly 3322, one end of the second frame 3312 is mounted on the output end slide of the first linear motor, and the clamping structure 321 and the pressing structure 322 are both fixedly mounted on the output end slide of the second linear motor. In this embodiment, the first driving member 332 and the second driving member 332 are both configured as linear motor assemblies, the first linear motor assembly 3321 is mounted on the first frame 3311, and the second linear motor assembly 3322 is mounted on the second frame 3312. One end of the second frame portion 3312 is arranged on the output end slide of the first linear motor assembly 3321, and the clamping structure 321 and the pressing structure 322 are both installed on the output end slide of the second linear motor assembly 3322. The clamping structure 321 and the pressing structure 322 are both integrated and installed on the output end of the same driving structure. In the actual installation process of the battery cell, after the clamping assembly places the battery cell in the outer shell, the first linear motor assembly 3321 and the second linear motor assembly 3322 only need to move a small stroke to allow one end of the pressing structure 322 to press down and assemble corresponding to the upward end of the battery cell, so that in the actual assembly process, the production rhythm when assembling the battery cell and the outer shell can be effectively improved. On the other hand, installing the clamping structure 321 and the pressing structure 322 on the same driving structure is also beneficial to saving production materials to a certain extent.

[0071] The clamping structure 321 includes a first cylinder 3211 and a clamping device 3212. The first cylinder 3211 is installed on the output end slide of the second linear motor. The output end of the first cylinder 3211 is provided with a clamping mounting seat 3211a fixedly connected thereto. The clamping device 3212 includes a finger cylinder 3212a and two clamping claws 3212b. One end of the finger cylinder 3212a is installed on the clamping mounting seat 3211a. The two clamping claws 3212b are respectively installed on the two output parts of the finger cylinder 3212a. Two corresponding arc grooves 3212c are provided on the opposite ends of the two clamping claws 3212b.

[0072] The clamping structure 321 specifically includes a first cylinder 3211 and a clamping device 3212, wherein the first cylinder 3211 is installed on the output end slide of the second linear motor. When the battery cell is assembled, the first linear motor assembly 3321 and the second linear motor assembly 3322 first drive the first cylinder 3211 to the material picking station, and at this time, the clamping mounting seat 3211a on the output end of the first cylinder 3211 drives the finger cylinder 3212a downward, and at this time, the two output parts of the finger cylinder 3212a are The clamping jaws 3212b are located on both sides of the battery core on the feeding structure 31, and then the finger cylinder 3212a is actuated to drive the two clamping jaws 3212b to move toward each other at the same time, and finally the battery core is clamped between the two arc grooves 3212c, and then the first cylinder 3211, the first linear motor assembly 3321 and the second linear motor assembly 3322 work together to transport the battery core to the top of the battery shell on the base 12. At this time, the first cylinder 3211 and the finger cylinder 3212a cooperate to place the battery core in the inner cavity of the battery shell. It should be noted that in order to improve the assembly efficiency of the battery core and the battery shell, at least two arc grooves 3212c on each clamping jaw 3212b are set, and when the battery core is actually taken, at least two battery cores can be taken each time.

[0073] The pressing structure 322 includes a second cylinder 3221 and two pressing heads 3222. The second cylinder 3221 is installed on the output end slide of the second linear motor. A pressing head mounting seat 3221a is provided on the output end of the second cylinder 3221. A slide groove 3221b is provided on the pressing head mounting seat 3221a. A threaded hole 3222a is provided on the upward end portion of the two pressing heads 3222, and one end thereof provided with the threaded hole 3222a is installed on the slide groove 3221b by bolts. A pressing needle 3222b is provided on the downward end portion of the two pressing heads 3222. The pressing structure 322 includes a second cylinder 3221 and two pressing heads 3222. The second cylinder 3221 corresponds to the first cylinder 3211 and is also installed on the output end slide of the second linear motor assembly 3322. When the battery cells are pressed down for assembly, the first linear motor assembly 3321 and the second linear motor assembly 3322 drive the first cylinder 3211 to the position directly above the battery cells inside the battery casing, and then the second cylinder 3221 drives the two pressing heads 3222 to move downward at the same time to press down the upward ends of the two battery cells, so that the battery cells are installed in place in the battery casing. It should be noted that two electrode columns are generally provided on the upper end surface of the battery cell. In the process of pressing down the battery cell, the battery cell should be pressed down and assembled avoiding the two electrode columns. Therefore, in this embodiment, a pressure needle 3222b with a relatively small diameter is provided on the downward end of the two pressing heads 3222. Before assembly, the positions of the two pressing heads 3222 on the pressure head mounting seat 3221a should be adjusted so that the downward ends of the two pressing needles 3222b can be located at the two battery cells respectively during the pressing process. The position of the lower pressing piece 3222 is exactly in the middle of the two electrode columns, so a slide groove 3221b is provided on the pressing head mounting seat 3221a, and the upward end portions of the two lower pressing heads 3222 are both provided with chamfers and can slide in the slide groove 3221b. After the position of the lower pressing head 3222 is adjusted, a bolt is inserted into the threaded hole 3222a on the upper end portion of the lower pressing piece from above the slide groove 3221b, and the bolt is tightened to fix the position of the lower pressing head 3222 on the pressing head mounting seat 3221a.

[0074] The feeding structure 31 includes a third linear motor assembly 311, a tray structure 312 and a pallet component 313. The third linear motor assembly 311 is arranged on the base 12, and one end of the third linear motor assembly 311 is arranged corresponding to the material taking station. The tray structure 312 is provided with a plurality of sinking holes 3121, and the plurality of sinking holes 3121 are used to place the battery cells. The pallet component 313 is installed on the output end slide of the third linear motor assembly 311. The pallet component 313 is also provided with baffle parts 3131 around the tray component 313 to limit the tray structure 312. The feeding structure 31 mainly includes a third linear motor assembly 311, a tray structure 312 and a pallet component 313. Among them, when loading the materials, firstly, the battery cells are placed in the sinking holes 3121 to fill the material tray structure 312, and then the entire material tray structure 312 is placed on the pallet member 313. The pallet member 313 is provided with a baffle portion 3131 for positioning the material tray structure 312. After the material tray structure 312 is placed, the third linear motor assembly 311 will drive the material tray structure 312 to move to the material picking station, thereby reducing the movement stroke of the first linear motor assembly 3321 and minimizing the assembly time.

[0075] In order to further improve the working efficiency of the feeding structure 31, in this embodiment, at least two feeding structures 31 are provided, and the two feeding structures 31 work intermittently to ensure that the material supply of the battery cells is always maintained at the material taking station. In addition, two support frames 314 are provided on the floor, and the two third linear motor assemblies 311 are installed on the two support frames 314.

[0076] In addition, in order to further ensure that the battery cell can be accurately placed in the battery housing, a corresponding visual positioning component can be installed on the base 12, and the installation position of the battery cell can be corrected in real time by the visual positioning component.

[0077] The protection plate assembly structure 7 includes a first vibration loading structure 71 and a protection plate grabbing structure 72, wherein the first vibration structure can be used for automatic loading of the protection plate. The protection plate has an inner and outer surface during assembly, and a column structure is provided on the outer mounting surface. The first vibration loading structure 71 can screen the material during operation so that the end of the protection plate with the column structure faces upward. When the protection plate is installed, the first moving module 721 drives the two protection plate clamping claws 722 to move in the horizontal and vertical directions, grabs the protection plate and places it on one end of the battery cell for assembly.

[0078] Taking into account that two electrode columns are provided on the mounting end of the battery cell, when the protective plate is installed, the two through holes on the protective plate need to be installed corresponding to the two electrode columns, and when the first vibration structure is fed, the positions of the through holes on the protective plate are random. In addition, the positions of the two electrode columns on the battery cell on the horizontal plane are also random. If direct assembly is performed, there is a high probability that interference will occur between the protective plate and the battery cell, and the protective plate cannot be installed on one end of the battery cell. Therefore, in this embodiment, two rotation adjustment parts 74 are provided on the first movable module 721, and the two protection plate clamping parts 722 are respectively provided on the output ends of the two rotation adjustment parts 74. In the actual assembly process, first, the first visual device 731 in the visual correction component 73 will obtain the position information of the two electrode columns at the end of the battery cell in the shell, and then pass it to the rotation adjustment part 74, and then the second visual device will obtain the position information of the two through holes on the protection plate. At this time, the rotation adjustment part 74 will drive the protection plate to rotate a certain angle according to the position information of the two electrode columns at the end of the battery cell, so that the two through holes on the protection plate correspond to the positions of the two electrode columns at the end of the battery cell, and then the first movable module 721 drives the protection plate clamping part 722 to move, so as to install the protection plate on the upward end of the battery cell. Through the cooperation of the two visual devices, the protection plate and the battery cell can be adapted and installed, which can effectively solve the adaptation and installation problem between the two components during the installation process, and can effectively improve the actual installation efficiency.

[0079] Among them, the protection plate clamping part 722 is also designed to improve the electrode column at the end of the battery cell. Specifically, the protection plate grabbing structure 72 includes a clamping drive element 7221 and two protection plate clamping parts 722. When the driving element is working, it can drive the two protection plate clamping parts 722 to move toward or away from each other at the same time. It can be set as a cylinder part or a push rod part, which can be selected according to actual production data. Mainly, an avoidance notch 7222b is provided on the protection plate clamping part 722. When grabbing the protection plate, the column structure on the protection plate is mainly grabbed and fixed through two arc-shaped fixing grooves 7222a. The two avoidance openings can define a certain space above the two through holes on the protection plate, so that when the protection plate is assembled, the problem of interference between the protection plate clamping part 722 and the electrode column at the end of the battery cell can be well avoided.

[0080] After the protection plate is installed at the end of the battery cell, it is necessary to fix the protection plate on the inner wall of the shell by welding. In this embodiment, in order to further improve the efficiency of welding, the tin spraying structure 751 and the welding structure 752 are independently arranged. Such an arrangement can separate the tin spraying process from the welding process. During the welding operation, the tin spraying structure on the previous work station can perform the tin spraying operation simultaneously, so that the working hours used for welding and the working hours used for tin spraying can be effectively overlapped, which is beneficial to the improvement of the overall working efficiency of the entire welding assembly 75. Specifically, the fourth movable module 7511 can drive the tin spraying device 7512 to move. It can be imagined that before tin spraying, the position of the solder joint is generally obtained with the help of visual elements. After the position of the solder joint is determined, the fourth movable module 7511 can drive the tin spraying device 7512 to move quickly, and quickly spray the solder paste in the tin spraying device 7512 through the injection valve, so that the solder paste covers the solder joint position, and the visual element can feed back the relevant information to the third movable module 7521 when capturing the relevant solder joint position. After the tin spraying is completed, when the relevant carrier structure 211 moves to the welding structure 752, the third movable module 7521 can quickly locate the relevant solder joint position, thereby driving the welding device 7522 to weld the solder joint position. It should be noted that three welding points are provided between the outer shell and the protective plate. Since two outer shells are fixed on the carrier structure 211 at a time, six welding points need to be processed continuously each time tin spraying and welding. Through the positioning of the visual element, the fourth movable module 7511 and the third movable module 7521 can be quickly positioned, and the entire working time for tin spraying and welding six welding points does not exceed 2.4 seconds.

[0081] After the welding of the protection plate is completed, it is necessary to assemble the top cover at the open end of the outer shell. During assembly, the second movable module 81 drives the top cover grabbing structure 82 to move. It should be noted that the specific structure of the top cover grabbing structure 82 and the protection plate clamping portion 722 in the protection plate grabbing structure 72 are the same. In the specific assembly process, the second vibrating feeding structure 83 automatically feeds the top cover, and then the second movable module 81 drives the top cover grabbing structure 82 to move to pick up the material, and then the top cover is installed on the upward end of the outer shell.

[0082] In this process, considering that during the installation process, the circular hole on the top cover needs to cooperate with the column structure on the protective plate, in this embodiment, as in the installation process of the protective plate, a visual structure is also provided to assist in positioning. Specifically, the relative position relationship between the column of the protective plate and the top cover hole on the top cover is obtained respectively through the third visual device 84 and the fourth visual device 85, and then the position of the cover plate is adjusted through the fourth movable module 81 so that the circular hole on the cover plate corresponds to the column structure on the protective plate, thereby ensuring the accuracy of the installation position.

[0083] The dividing plate structure 2 includes a receiving disc 21. A disc driving member (not shown) is installed on the bottom frame structure 1, and its output end is connected to the central mounting shaft of the receiving original disc. During the assembly process, the receiving disc 21 is driven by the disc driving member to perform intermittent rotation, so that each mounting structure 33 can synchronously assemble each structural member.

[0084] Among them, the first vibration feeding structure 71, the second vibration feeding structure 83 and the third vibration feeding structure 31 are all configured as vibration plate feeding structures 31. The vibration plate feeding structure 31 is usually used for automatic feeding of smaller structural parts, and its application is very mature, so it will not be described here one by one.

[0085] In addition, the first movable module 721, the second movable module 81, the third movable module 7521 and the fourth movable module 7511 are respectively composed of multiple linear motion structures, and the multiple linear motion structures are combined in the horizontal direction and the vertical direction to form corresponding module structures capable of adjusting the horizontal position and the vertical position. The linear motion structure can be set as a linear motor assembly, etc.

[0086] In the traditional production process of cylindrical lithium batteries, some production equipment is semi-automatic production equipment. This type of equipment requires manual assistance for loading and unloading during production. When the product enters the mass production stage, the efficiency of this production method is difficult to meet the production needs of mass production. Some production equipment adopts automatic unloading structure, such as manipulator-assisted unloading. This type of unloading structure is complex in structure and difficult to form an integral whole with the overall production equipment. On the other hand, the investment cost is high, which is not conducive to the saving of production materials. Taking the above problems into consideration, an automatic unloading structure is adopted in the present embodiment, which mainly includes a base 12 and a unloading structure, wherein the unloading structure includes a picking structure 41 and a conveying structure 46. Specifically, in the actual working process, first, the output end of the picking structure 41 transfers the cylindrical batteries assembled on the unloading and loading station of the base 12 to one end of the conveying structure 46. In the process of transferring the finished battery products, the output end of the picking structure 41 is correspondingly arranged at a position above the unloading station and the conveying structure 46, and the movement stroke of the picking action is relatively small. After the finished battery products are placed on one end of the conveying structure 46, the conveying structure 46 can automatically take out the finished battery products.

[0087] The material picking structure 41 includes an adjustment component 411 and a grabbing component 413. The adjustment component 411 is installed on the base 12 corresponding to the side of the conveying structure 46. The output end of the adjustment component 411 is connected to the grabbing component 413 to adjust the horizontal position and vertical position of the grabbing component 413. The grabbing component 413 is used to clamp or release the cylindrical battery at the unloading station. Specifically, the material picking structure 41 includes an adjustment component 411 and a grabbing component 413. The adjustment component 411 is installed at the side position of the conveying structure 46. The grabbing component 413 is arranged on the output end of the adjustment component 411. The adjustment component 411 has the ability to adjust the position in the horizontal and vertical directions, and can drive the material picking component to perform material picking and unloading actions in the vertical direction, and can also drive the grabbing component 413 to move the assembled batteries at the unloading station to one end of the conveying structure 46. The grabbing assembly 413 is specifically configured as a transport structure of the clamping structure 321, which can clamp and release the processed cylindrical battery.

[0088] The adjustment assembly 411 includes a mounting member 4111 and a material discharge driving member 412, the mounting member 4111 includes a column member 4111a, a horizontal guide rail member 4111b and an L-shaped mounting plate 4111c, the column member 4111a is vertically mounted on the base 12, a guide mounting portion is provided on the downward end of the horizontal guide rail, and the guide mounting portion is slidably mounted on the column member 4111a along the vertical direction, the material discharge driving member 412 includes a first driving member 332 and a second driving member 332, the first driving member 332 is provided on one side of the column member 4111a, and the output end of the first driving member 332 is connected to the horizontal guide rail member 4111b, the second driving member 332 is installed at one end of the horizontal guide rail member 4111b in the length direction, and the L-shaped mounting plate 4111c is installed on the output end of the second driving member 332. Among them, the horizontal guide member 4111b is installed on the vertical side wall of the column member 4111a through the guide installation structure 33 on its lower end, so that the horizontal guide member 4111b has a movement stroke in the vertical direction. When working, the first driving member 332 in the unloading driving member 412 is installed on the column member 4111a. When working, it can drive the horizontal guide member 4111b to move in the vertical direction, thereby driving the grabbing component 413 on the L-shaped mounting plate 4111c to move in the vertical direction. After the grabbing component 413 completes the material picking, the first driving member 332 drives the material picking interval upward, so that the processed battery product is taken out from the carrier. At the same time, the second driving member 332 on the horizontal guide member 4111b drives the L-shaped mounting plate 4111c moves on the horizontal plane, thereby moving the battery product above the unloading station to a position above one end of the conveying structure 46, and then the first driving member 332 drives the grabbing assembly 413 downward again, and the picking assembly places the processed battery product on one end of the conveying structure 46. The coordinated action of the first driving member 332, the second driving member 332 and the grabbing assembly 413 can quickly complete the unloading operation. It should be noted that the L-shaped mounting plate 4111c sets the grabbing assembly 413 correspondingly above the conveying structure 46 and the unloading station, and adopts a single-sided structure for installation, which can allow the entire conveying structure 46 and the picking structure 41 to form a relatively compact overall unloading structure state, which is conducive to reducing the overall structural specifications.

[0089] The L-shaped mounting plate 4111c includes a first plate portion 4111d and a second plate portion 4111e, the first plate portion 4111d is connected to the second driving member 332, the grabbing assembly 413 includes a first finger cylinder 4131 and two material grabbing claws, the first finger cylinder 4131 is installed on the downward end surface of the second plate portion 4111e, the two material grabbing claws 4132 are respectively arranged on the two output ends of the first finger cylinder 4131, and flexible clamping blocks 4132a are provided on the opposite end surfaces of the two flexible clamping blocks 4132a, and corresponding arc grooves 4132b are provided on the opposite end surfaces of the two flexible clamping blocks 4132a. Among them, the first finger cylinder 4131 is installed on the downward end surface of the second plate part 4111e. In the actual material picking process, first, the second driving member 332 drives the first finger cylinder 4131 to the position directly above the unloading station, and the first driving member 332 drives the first finger cylinder 4131 downward, and the first finger cylinder 4131 drives the two material picking claws 4132 to move toward each other, thereby clamping the battery product in the carrier on the unloading station, and then the first driving member 332 and the second driving member 332 move in opposite directions to drive the first finger cylinder 4131 to the upper position of the conveying structure 46, and then the first finger cylinder 4131 drives the two material picking claws 4132 to move away from each other, thereby releasing the assembled battery product. During this process, two corresponding flexible clamping blocks 4132a are provided on the opposite end faces of the two material picking claws 4132, and mutually corresponding arc grooves 4132b are provided on the opposite end faces of the two flexible clamping blocks 4132a. The curvature of the arc groove 4132b corresponds to the arc-shaped peripheral wall of the battery product, and corresponding chamfered structures are provided on both sides of the arc groove 4132b, which can ensure that the battery product can be fixed in the middle position of the arc groove 4132b when clamping the battery product.

[0090] The second plate portion 4111e is arranged above one end of the conveying structure 46 corresponding to the unloading station, and an adjustment groove 4111f is arranged on the second plate portion 4111e, and one end of the first finger cylinder 4131 is fixedly installed at the adjustment groove 4111f by bolts. In order to improve production efficiency, the grab assembly 413 can pick up and put two battery products at a time, and two arc grooves 4132b are arranged on one of the flexible clamps 4132a. It is also considered that the accuracy of the material picking position of the first finger cylinder 4131 is directly related to its actual installation position, so in this embodiment, an adjustment groove 4111f is arranged on the second plate portion 4111e, and one end of the first finger cylinder 4131 is fixedly installed at the adjustment groove 4111f by bolts. During the actual installation process, the actual installation position of the first finger cylinder 4131 can be adjusted according to the actual position of the carrier on the unloading station.

[0091] The first mounting portion 42 and the second mounting portion 43 are respectively provided on the corresponding sides of the column member 4111a and the horizontal guide member 4111b, the first driving member 332 and the second driving member 332 are respectively configured as the first electric push rod 4121 and the second electric push rod 4122, the first electric push rod 4121 is installed on the first mounting portion 42 and the output end of the first push rod is connected to the second mounting portion 43, the horizontal guide member 4111b is provided with a slide plate portion 4111g, the first plate portion 4111d is installed on the slide plate portion 4111g, the second electric push rod 4122 is installed on one end of the horizontal guide member 4111b, and the output end of the second electric push rod 4122 is connected to one end of the slide plate portion 4111g. Specifically, the first driving member 332 and the second driving member 332 are both configured as push rod members, and the two push rod members are respectively a first electric push rod 4121 and a second electric push rod 4122. Specifically, a first mounting portion 42 is provided on a side of the column member 4111a corresponding to the feeding structure, and a second mounting portion 43 is provided on a side of the horizontal guide member 4111b corresponding to the feeding structure. The first electric push rod 4121 is installed on the first mounting portion 42, and its output end is connected to the second mounting portion 43. The horizontal guide member 4111b is also provided with a There is a slide plate portion 4111g, the first plate portion 4111d is installed on the slide plate portion 4111g, the second electric push rod 4122 is installed on one end of the horizontal guide rail 4111b, and the output end of the second electric push rod 4122 is connected to one end of the slide plate portion 4111g. When the second electric push rod 4122 is working, it drives the first plate portion 4111d to move on the horizontal plane. The synergistic effect of the first electric push rod 4121 and the second electric push rod 4122 can drive the first finger cylinder 4131 to move on the horizontal plane and the vertical plane.

[0092] A buffer structure is provided at one end of the horizontal guide member 4111b away from the second electric push rod 4122, and the buffer structure includes a spring rod 44. The spring rod 44 is installed at one end of the horizontal guide, and the output end of the spring rod 44 is arranged opposite to one end of the second plate portion 4111e. In this embodiment, a buffer structure is provided at one end of the horizontal guide member 4111b away from the second electric push rod 4122. Specifically, the buffer structure includes a spring rod 44. When the second electric push rod 4122 drives the L-shaped mounting plate 4111c to move toward the unloading station on the horizontal guide member 4111b, one end of the second plate portion 4111e first contacts with one end of the spring rod 44, thereby performing buffering. Guide rods 4111h extending in the vertical direction are provided on two opposite vertical side walls of the column member 4111a. When the horizontal guide member 4111b moves in the vertical direction, the two sliding blocks 45 respectively slide on the two guide rods 4111h for guiding, thereby increasing the stability of the horizontal guide member 4111b during movement.

[0093] In the above embodiments, the driving structure is configured as a common push rod structure and a cylinder structure, the overall cost is relatively low, which is beneficial to saving production materials, and the overall structure is relatively compact, which is more conducive to forming a complete production system with the whole machine equipment.

[0094] The two opposite vertical side walls of the column member 4111a are each provided with a guide rail rod 4111h extending along the vertical direction, and the guide mounting portion includes two slider portions 45, and the two slider portions 45 are respectively slidably mounted on the two guide rail rods 4111h.

[0095] The conveying structure 46 includes a support frame 461 and a belt feeding assembly 47. The support frame 461 is mounted on the base 12, the belt feeding assembly 47 is mounted on the support frame 461, and one end of the belt feeding assembly 47 is arranged corresponding to the unloading station, and the first finger cylinder 4131 is arranged above the end of the belt feeding assembly 47. The belt feeding assembly 47 is mounted on the support frame 461, and one end of the belt feeding assembly 47 is arranged corresponding to the unloading station, and the first finger cylinder 4131 is arranged above the end of the belt feeding assembly 47. In the above structure, the movement direction of the first finger cylinder 4131 on the horizontal plane is arranged corresponding to the feeding direction of the belt feeding assembly 47, which can effectively reduce the arrangement space of the mounting member 4111 and the driving member 332.

[0096] In addition, in order to ensure that the battery products are stably transported on the belt feeding assembly 47, baffle structures 462 are provided on the support frame 461 at positions on both sides corresponding to the belt feeding assembly 47 to limit and block the battery products. The belt feeding assembly 47 is an existing conventional structure, which is generally composed of a transmission belt, a motor structure and a mounting roller structure, which will not be described one by one here.

[0097] It should also be noted that the shell loading structure 6 specifically includes two parts, the first part is a vibration disk loading assembly, and the other part is a clamping claw loading assembly, wherein the vibration disk loading assembly is arranged on the bottom frame structure 1, and the clamping claw loading assembly structure is the same as the picking structure 41 in the cylindrical battery unloading structure 4, and the specific structure refers to the specific embodiment of the picking structure 41 mentioned above. When working, the clamping claw loading assembly clamps the shell on the vibration disk loading assembly and places it in the limiting hole portion 2111 in the carrier structure 211, and two battery shells can be placed at a time.

[0098] In addition, an upper frame structure 11 is provided on the bottom frame structure 1. A certain installation space is provided on the upper frame structure 11, and related control structures and related detection devices can be fixedly installed during actual installation.

[0099] The related structure disclosed in the present invention can achieve the assembly and production of 3,000 batteries per hour. The equipment uses high-speed slide module, high-speed automatic solder paste, high-speed laser welding, vibration plate feeding, electric gripper material picking, cam divider rotating turntable station, visual inspection, dynamic real-time inspection and other functions. It realizes the efficient production of cylindrical lithium batteries and has excellent application value.

[0100] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An automatic assembly equipment for cylindrical lithium batteries, characterized in that: include: Bottom frame structure; A dividing plate structure is installed on the bottom frame structure, the dividing plate structure has a rotating part rotating on the bottom frame structure, the rotating part is evenly spaced around its axis and a plurality of receiving stations are provided, the plurality of receiving stations are each provided with a carrier structure for limiting and fixing the battery housing, and the bottom frame structure is provided with a plurality of operating stations corresponding to the plurality of receiving stations; and, The assembly structure includes a battery cell assembly structure, a protection plate assembly structure and a top cover assembly structure. The battery cell assembly structure, the protection plate assembly structure and the top cover assembly structure are all arranged in sequence at multiple work stations around the dividing plate structure, and are used to assemble the battery cell, protection plate and top cover of the cylindrical lithium battery respectively.

2. The cylindrical lithium battery automatic assembly equipment according to claim 1, characterized in that: The cylindrical lithium battery automatic assembly equipment further includes a shell loading structure, which is installed on one of the working stations corresponding to the middle position between the battery cell assembly structure and the top cover assembly structure, so as to place the cylindrical lithium battery shell on the carrier structure; and / or, Each of the carrier structures is provided with at least two limiting holes for fixing at least two lithium battery casings each time.

3. The cylindrical lithium battery automatic assembly equipment according to claim 2, characterized in that: The frame structure is provided with a base, and the battery cell assembly structure comprises: A feeding structure is arranged on the base; and An assembly structure, comprising a clamping structure and a pressing structure, wherein the clamping structure and the pressing structure are both movably mounted on the base, the clamping structure is used to place the battery cell in the battery housing, and the pressing structure is used to press down one end of the battery cell so that the battery cell is installed in place in the battery housing; The clamping structure is formed with a material taking station on the base correspondingly, and the loading structure is used to transport the battery cell to the material taking station.

4. The cylindrical lithium battery automatic assembly equipment according to claim 2, characterized in that: The protection plate assembly structure comprises: A first vibration feeding structure, provided on the bottom frame structure, is used for feeding the protection plate; and The protective plate grasping structure includes a first movable module and two protective plate clamping parts. The first movable module is installed on one of the working stations corresponding to the first vibration feeding structure. The first movable module is connected to the two protective plate clamping parts to adjust the horizontal position and vertical position of the two protective plate clamping parts. The protective plate clamping parts are used to clamp the protective plate.

5. The cylindrical lithium battery automatic assembly equipment according to claim 4, characterized in that: The frame structure is provided with a base; The protection plate assembly structure also includes: Two rotation adjustment parts are both installed on the first moving module, and the two protection plate clamping parts are respectively arranged on the output ends of the two rotation adjustment parts; and, A vision correction component, comprising a first vision device and a second vision device, wherein the first vision device is arranged on the base at a position directly above the corresponding carrier structure, and the second vision device is installed on the work station corresponding to the first mobile module, and the first vision device and the second vision device are used to obtain the relative position relationship between the electrode column on the battery cell and the mounting hole on the protection plate; The rotation adjustment part is used to adjust the mounting hole on the protection plate to correspond to the electrode column on the battery cell.

6. The cylindrical lithium battery automatic assembly equipment according to claim 5, characterized in that: The protective plate grasping structure includes a clamping jaw driving element and two clamping jaw parts. The driving element is installed at the output end of the rotation adjustment part. The clamping jaw driving element is connected to the two clamping jaw parts to drive the two clamping jaw parts to move toward or away from each other at the same time. Two arc-shaped fixing grooves corresponding to each other are provided on the opposite end surfaces of the two clamping jaw parts for fixing the columns on the protective plate, and avoidance notches are provided on the two clamping jaw parts for making way for the electrode columns on the battery cells.

7. The cylindrical lithium battery automatic assembly equipment according to claim 5, characterized in that: The protective plate assembly structure further includes a welding assembly, and the welding assembly includes: A tin spraying structure, comprising a fourth movable module and a tin spraying device, wherein the fourth movable module is installed on one of the working stations corresponding to the side position of the first movable module, and the fourth movable module is connected to the tin spraying device for adjusting the position of the tin spraying device; and The welding structure comprises a third movable module and a welding device, wherein the third movable module is installed on an operating station adjacent to the fourth movable module, and the third movable module is connected to the welding device for adjusting the welding position of the output end of the welding device.

8. The cylindrical lithium battery automatic assembly equipment according to claim 1, characterized in that: The top cover assembly structure comprises: A fourth mobile module is arranged on one of the working stations; A top cover grabbing structure, mounted on the fourth movable module, for grabbing and releasing the top cover, wherein the fourth movable module is used to adjust the position of the top cover grabbing structure; and The second vibration feeding structure is arranged on the bottom frame structure corresponding to the fourth movable module, and is used for automatically feeding the top cover.

9. The cylindrical lithium battery automatic assembly equipment according to claim 8, characterized in that: The indexing plate structure comprises: A receiving disc is rotatably mounted on the bottom frame structure, and a plurality of receiving stations are correspondingly arranged on the upper end surface of the receiving disc; and, a disc driving member, mounted on the bottom frame structure and connected to the receiving disc, for driving the receiving disc to rotate on the bottom frame structure; and / or, The top cover assembly structure also includes a third visual device and a fourth visual device. The third visual device is arranged on the bottom frame structure at a position directly above the corresponding carrier structure, and the fourth visual device is installed on the bottom frame structure corresponding to the fourth movable module. The third visual device and the fourth visual device are used to respectively obtain the relative position relationship between the protection plate column and the top cover hole on the top cover.

10. The cylindrical lithium battery automatic assembly equipment according to claim 2, characterized in that: The frame structure is provided with a base; The cylindrical lithium battery automatic assembly equipment further includes a cylindrical battery unloading structure, wherein the cylindrical battery unloading structure includes an unloading structure, and the unloading structure is arranged on one of the working stations between the loading structure and the top cover assembly structure; The unloading structure includes a material picking structure and a conveying structure, both of which are arranged on the base, the material picking structure is arranged on one side of the conveying structure, and the output end of the material picking structure is arranged above an end of the conveying structure corresponding to the unloading station, so as to transfer the cylindrical batteries on the unloading station to one end of the conveying structure, and the conveying structure is used to transport the cylindrical batteries.

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