A cylindrical battery cell voltage sorting machine

Abstract

The present invention discloses a cylindrical battery cell voltage sorting machine in the technical field of cylindrical battery cell sorting, which includes guiding plates arranged on opposite sides of the conveying direction of the feeding conveyor. One end of the two groups of guiding plates is provided with an upper side plate and a lower side plate that are connected into one body and distributed vertically. An upper guiding groove extending to the upper side plate on the same side is provided inside one group of guiding plates, and a lower guiding groove extending to the lower side plate on the same side is provided inside the other group of guiding plates; A clamping module for clamping the cylindrical battery cell is provided, and the clamping module moves through the cooperation of a horizontal movement module, a vertical movement module and a vertical movement module; The present invention guides cylindrical battery cells with different orientations into different zones through the upper guiding groove and the lower guiding groove, grabs the cylindrical battery cells onto the corresponding discharging conveyor through the clamping module, and detects the voltage and internal resistance of the cylindrical battery cells through the cooperation of the test probe and the internal resistance meter; Thereby, the cylindrical battery cells in the corresponding interval are placed on the corresponding discharging conveyor.

Description

Technical Field

[0001] The present invention relates to the technical field of cylindrical battery cell sorting, and particularly to a cylindrical battery cell voltage sorting machine. Background Art

[0002] Cylindrical battery cells are the main practical battery cells in China at present and are widely used in fields such as laptop computers, mobile power supplies, power tools, and electric vehicles.

[0003] Before leaving the factory, cylindrical battery cells must undergo strict voltage and internal resistance tests and then be classified and graded according to battery performance. Sorting the cylindrical batteries by voltage can improve the stability of the products and extend their service life.

[0004] Existing cylindrical battery cell sorting manipulators can usually only sequentially pick up different cylindrical battery cells and place them in a predetermined area. The cylindrical battery cells usually adopt the method of manual feeding, and there is a problem that the positive and negative poles of the cylindrical battery cells are not in the same orientation during the transportation process.

[0005] Based on this, the present invention designs a cylindrical battery cell voltage sorting machine to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a cylindrical battery cell voltage sorting machine to solve the problem that in the manual feeding in the background art, the positive and negative poles of the cylindrical battery cells are not in the same orientation during the transportation process.

[0007] To achieve the above purpose, the present invention provides the following technical solution: A cylindrical battery cell voltage sorting machine includes a feed hopper arranged above a feed conveyor, and guide plates arranged on opposite sides of the feed conveyor in the conveying direction. The distance between the two groups of guide plates gradually narrows from the feed hopper to be adapted to the column length of the cylindrical battery cell. One end of the two groups of guide plates away from the feed hopper is provided with an upper side plate and a lower side plate that are connected into one body and distributed vertically. An upper guide groove extending horizontally to the upper side plate on the same side is opened on the inner side of one group of guide plates, and a lower guide groove extending to the lower side plate on the same side is opened on the inner side of the other group of guide plates. The structures of the upper guide groove and the lower guide groove are adapted to the positive electrode terminals of the cylindrical battery cell;

[0008] A clamping module for clamping the cylindrical battery cell and two or more discharge conveyors are provided. The clamping module moves between two or more discharge conveyors, the upper side plate, and the lower side plate through the cooperation of a horizontal movement module, a vertical movement module, and a vertical movement module;

[0009] The clamping module includes a bidirectional telescopic device and clamping bars connected to its two output ends. Clamping covers are equidistantly arranged on the inner side of one set of the clamping bars. The inner cavity of the clamping covers is adapted to the positive terminal of the cylindrical battery cell. Clamping platforms are equidistantly arranged on the inner side of the other set of the clamping bars. The clamping covers and the clamping platforms are arranged in one-to-one correspondence and are provided with test probes. The test probes are electrically connected to an internal resistance meter, and telescopic electromagnets corresponding to the clamping covers are provided.

[0010] Preferably, a cross-shaped rotating frame is rotatably connected at the joint of the guiding plate, the upper side plate, and the lower side plate.

[0011] Preferably, the two upper side plates and the two lower side plates are respectively provided with upper clamping grooves and lower clamping grooves that are opened transversely inward from the edges.

[0012] Preferably, corresponding limiting rods are slidably connected to the openings of the upper clamping grooves and the lower clamping grooves. The limiting rods slide to open or close the openings of the corresponding upper clamping grooves or lower clamping grooves, and elastic members connected to the limiting rods are provided to drive the limiting rods to tend to close the openings of the corresponding upper clamping grooves or lower clamping grooves.

[0013] Preferably, a curved rod is rotatably connected. A chute is provided at one end of the curved rod. One end of the limiting rod is slidably engaged in the corresponding chute. The other end of the curved rod extends to the outside of the corresponding upper side plate or lower side plate. When the clamping bar moves to the corresponding upper clamping groove or lower clamping groove, it abuts and cooperates with the other end of the curved rod.

[0014] Preferably, the vertical movement module includes an upper platform and a lower platform. A telescopic device is connected between the upper platform and the lower platform. The telescopic amount of the telescopic device is adapted to the distance between the upper clamping groove and the lower clamping groove.

[0015] Preferably, the clamping module is installed at the bottom of the lower platform, and a rotating module for driving the clamping module to rotate is provided.

[0016] Preferably, a guiding track is provided, and rollers that move along the guiding track are installed on the lower platform.

[0017] Preferably, the guiding track includes an upper track, a lower track, and a middle track. The upper track and the lower track are connected by corresponding curved tracks and the middle track. Steering plates are installed at the intersections of the middle track with the upper track and the lower track. The steering plates are driven to rotate by a power device, and the middle track is controlled to be connected to one of the upper track or the lower track through the steering plates.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention guides cylindrical battery cells with different orientations through the upper guiding groove and the lower guiding groove, grabs the cylindrical battery cells to the corresponding discharging conveyor through the clamping module, and detects the voltage and internal resistance of the cylindrical battery cells through the cooperation of the test probe and the internal resistance meter during the clamping and transportation process; thereby placing the cylindrical battery cells in the corresponding interval on the corresponding discharging conveyor. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 Structural schematic diagram of the present invention;

[0021] Figure 2 Structural schematic diagram of the cooperation of the guiding side plate, the upper side plate and the lower side plate of the present invention;

[0022] Figure 3 For Figure 2 Structural schematic diagram in another direction;

[0023] Figure 4 Structural schematic diagram of the lower guiding groove on the guiding side plate and the lower side plate of the present invention;

[0024] Figure 5 Structural schematic diagram of the upper guiding groove on the guiding side plate and the upper side plate of the present invention;

[0025] Figure 6 Structural schematic diagram of the cooperation of the curved rod and the limiting rod of the present invention;

[0026] Figure 7 Structural schematic diagram of the clamping module and the vertical movement module of the present invention;

[0027] Figure 8 Structural schematic diagram of the cooperation of the guiding track and the vertical movement module of the present invention;

[0028] Figure 9 Structural schematic diagram of the guiding track of the present invention.

[0029] 100, Cylindrical battery cell; 1, Feed hopper; 2, Feed conveyor; 31, Guiding side plate; 311, Upper guiding groove; 312, Lower guiding groove; 32, Upper side plate; 321, Upper clamping groove; 33, Lower side plate; 331, Lower clamping groove; 35, Cross-shaped rotating frame; 36, Curved rod; 361, Sliding groove; 37, Limit rod; 4, Transverse moving module; 5, Longitudinal moving module; 6, Rotating module; 7, Clamping module; 71, Bi-directional telescopic device; 72, Clamping strip; 721, Clamping cover; 722, Telescopic electromagnet; 723, Clamping table; 8, Guiding track; 81, Middle track; 82, Upper track; 83, Lower track; 84, Curved track; 85, Steering plate; 9, Vertical moving module; 91, Upper platform; 92, Lower platform; 921, Roller; 93, Telescopic device; 10, Discharge conveyor. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0031] A cylindrical battery cell voltage sorting machine includes a feed hopper 1 arranged above the feed conveyor 2 and guiding plates 31 arranged on opposite sides of the feed conveyor 2 in the conveying direction. The distance between the two groups of guiding plates 31 gradually narrows from the feed hopper 1 to be adapted to the column length of the cylindrical battery cell 100. One end of the two groups of guiding plates 31 facing away from the feed hopper 1 is provided with an upper side plate 32 and a lower side plate 33 that are connected together and distributed up and down. An upper guiding groove 311 extending horizontally to the upper side plate 32 on the same side is opened on the inner side of one group of guiding plates 31, and a lower guiding groove 312 extending to the lower side plate 33 on the same side is opened on the inner side of the other group of guiding plates 31. The structures of the upper guiding groove 311 and the lower guiding groove 312 are adapted to the positive connection terminals of the cylindrical battery cell 100;

[0032] A clamping module 7 for clamping the cylindrical battery cell 100 and more than two discharge conveyors 10 are provided. The clamping module 7 moves between more than two discharge conveyors 10, the upper side plate 32, and the lower side plate 33 through the cooperation of a horizontal moving module 4, a longitudinal moving module 5, and a vertical moving module 9;

[0033] The clamping module 7 includes a bidirectional telescopic device 71 and clamping bars 72 connected to its two output ends. Clamping caps 721 are arranged at equal intervals on the inner sides of one group of the clamping bars 72. The inner cavity of the clamping caps 721 is adapted to the positive terminal of the cylindrical battery cell 100. Clamping platforms 723 are arranged at equal intervals on the inner sides of the other group of the clamping bars 72. The clamping caps 721 and the clamping platforms 723 are in one-to-one correspondence and are provided with test probes. The test probes are electrically connected to an internal resistance meter, and telescopic electromagnets 722 corresponding to the clamping caps 721 are provided.

[0034] Further, a cross-shaped rotating frame 35 is rotatably connected to the joints of the guiding plate 31, the upper side plate 32, and the lower side plate 33.

[0035] Further, upper clamping grooves 321 and lower clamping grooves 331 are respectively formed in the two groups of upper side plates 32 and the two groups of lower side plates 33 transversely inward from the edges.

[0036] Further, limiting rods 37 are slidably connected to the openings of the upper clamping grooves 321 and the lower clamping grooves 331. The limiting rods 37 slide to open or close the openings of the corresponding upper clamping grooves 321 or lower clamping grooves 331, and elastic members connected to the limiting rods 37 are provided to drive the limiting rods 37 to tend to close the openings of the corresponding upper clamping grooves 321 or lower clamping grooves 331.

[0037] Further, a curved rod 36 is rotatably connected. A sliding groove 361 is formed at one end of the curved rod 36. One end of the limiting rod 37 is slidably engaged in the corresponding sliding groove 361. The other end of the curved rod 36 extends to the outside of the corresponding upper side plate 32 or lower side plate 33. When the clamping bar 72 moves to the corresponding upper clamping groove 321 or lower clamping groove 331, it abuts against the other end of the curved rod 36.

[0038] Further, the vertical moving module 9 includes an upper platform 91 and a lower platform 92. A telescopic device 93 is connected between the upper platform 91 and the lower platform 92. The telescopic amount of the telescopic device 93 is adapted to the distance between the upper clamping groove 321 and the lower clamping groove 331.

[0039] Further, the clamping module 7 is installed at the bottom of the lower platform 92, and a rotating module 6 for driving the clamping module 7 to rotate is provided.

[0040] Further, a guiding track 8 is provided, and rollers 921 that move along the guiding track 8 are installed on the lower platform 92.

[0041] Furthermore, the guide rail 8 includes an upper rail 82, a lower rail 83 and a middle rail 81. The upper rail 82 and the lower rail 83 are connected to the middle rail 81 through corresponding curved rails 84. A steering plate 85 is installed at the intersection of the middle rail 81 and the upper rail 82 and the lower rail 83. The steering plate 85 is driven to rotate by a power device, and the connection between the middle rail 81 and one of the upper rail 82 or the lower rail 83 is controlled by the steering plate 85.

[0042] An embodiment of the present invention:

[0043] Manually put the cylindrical battery cells 100 to be tested into the feed hopper 1. Under the action of gravity, the cylindrical battery cells 100 fall out from the bottom opening of the feed hopper 1 one by one and land on the top of the feed conveyor 2. The distance between the top of the feed conveyor 2 and the bottom of the feed hopper 1 is adapted to the shape of the cylindrical battery cells 100.

[0044] The two sets of guide side plates 31 are located on opposite sides of the feed conveyor 2, and the distance between the two sets of guide side plates 31 gradually narrows from one end close to the feed hopper 1 to the other end until the distance is the same as the column length of the cylindrical battery cell 100;

[0045] The upper side plate 32 and the lower side plate 33 are fixedly connected to the end of the guide side plate 31 away from the feed hopper 1. The left guide side plate 31 and the left upper side plate 32 are provided with an upper guide groove 311 extending along the conveying direction of the feed conveyor 2. The right guide side plate 31 and the right lower side plate 33 are provided with a lower guide groove 312. The guide groove 312 is located at the guide side plate 31 and extends along the conveying direction of the feed conveyor 2.

[0046] When the cylindrical battery cell 100 is conveyed by the feed conveyor 2, the column is limited by the two sets of guide side plates 31, so that the positive terminal of the cylindrical battery cell 100 is relatively inserted into the upper guide groove 311 or the lower guide groove 312 of the guide side plate 31, and the cross rotating frame 35 is located at the connection between the guide side plate 31, the upper side plate 32 and the lower side plate 33, and the cross rotating frame 35 rotates freely; thus, the cylindrical battery cell 100 with the positive terminal located in the upper guide groove 311 drives the cross rotating frame 35 to rotate forward, so that the cylindrical battery cell 100 moves to Between the two groups of upper side plates 32; the cylindrical battery cell 100 with the positive terminal located in the lower guide groove 311 drives the cross rotating frame 35 to rotate in the opposite direction, so that the cylindrical battery cell 100 moves to between the two groups of lower side plates 33; the spacing between the two groups of upper side plates 32 and the spacing between the two groups of lower side plates 33 are equal to the column length of the cylindrical battery cell 100; thereby, the cylindrical battery cell 100 with the positive terminal facing left is transported between the two groups of upper side plates 32, and the cylindrical battery cell 100 with the positive terminal facing right is transported between the two groups of lower side plates 33.

[0047] Upper clamping grooves 321 and lower clamping grooves 331 are respectively formed inward from the edges of the two groups of upper side plates 32 and the two groups of lower side plates 33. The structures and functions of the upper clamping grooves 321 and the lower clamping grooves 331 are the same. Under normal conditions, the limiting rods 37 at the openings of the upper clamping grooves 321 and the lower clamping grooves 331 prevent the cylindrical battery cells 100 from detaching. At this time, the cylindrical battery cells 100 are arranged in a line and are in contact with each other in pairs, and the frontmost group of cylindrical battery cells 100 is abutted and limited by the limiting rods 37.

[0048] Bottom plates for supporting the cylindrical battery cells 100 are provided between the two groups of upper side plates 32 and between the two groups of lower side plates 33; a counter is installed in the bottom plates. After the counter detects that the number of cylindrical battery cells 100 accumulated between the two groups of upper side plates 32 and between the two groups of lower side plates 33 reaches a set value, the clamping module 7 is controlled to grab a number of cylindrical battery cells 100 between the two groups of upper side plates 32 or between the two groups of lower side plates 33 that meet the standard.

[0049] The transverse movement module 4 is used to drive the clamping module 7 to move transversely between the upper side plate 32 (or the lower side plate 33) and the discharge conveyor 10; the longitudinal movement module 5 is used to drive the clamping module 7 to move longitudinally between several groups of discharge conveyors 10; the vertical movement module 9 is used to drive the clamping module 7 to move vertically between the upper side plate 32 and the lower side plate 33.

[0050] The bi-directional telescopic device 71 is in the extended state. At this time, the distance between the corresponding clamping covers 721 and clamping platforms 723 is greater than the distance between the outer sides of the two groups of upper side plates 32 and the two groups of lower side plates 33. First, the lateral movement module 4 drives the clamping module 7 to move to the outside of the two groups of upper side plates 32 (or the two groups of lower side plates 33). After that, the bi-directional telescopic device 71 shortens, driving the two groups of clamping strips 72 at its two output ends to approach synchronously. The clamping covers 721 and clamping platforms 723 on the inner sides of the two groups of clamping strips 72 are relatively inserted into the corresponding upper clamping grooves 321 (or lower clamping grooves 331), so that the positive connection terminals of the cylindrical battery cells 100 are relatively inserted into the inner cavities of the clamping covers 721 arranged at equal intervals in a row on the inner side walls of one group of clamping strips 72. The negative extreme ends of the cylindrical battery cells 100 are abutted against the clamping platforms 723 arranged at equal intervals in a row on the inner sides of the other group of clamping strips 72. The insertion of the positive connection terminals of the cylindrical battery cells 100 into the inner cavities of the clamping covers 721 can prevent the cylindrical battery cells 100 from falling downward during the clamping process. During the process of the two groups of clamping strips 72 approaching each other, the clamping strips 72 gradually abut against the outer side walls of the upper side plates 32 (or lower side plates 33) on the same side. During this process, the clamping strips 72 abut against the outer ends of the curved rods 36. The middle parts of the curved rods 36 are rotatably connected to the corresponding upper side plates 32 (or lower side plates 33). The inner ends of the curved rods 36 are provided with sliding grooves 361. The limiting rods 37 are in linear sliding fit on the corresponding upper side plates 32 (or lower side plates 33), and the upper ends of the limiting rods 37 are relatively located in the sliding grooves 361 at the inner ends of the corresponding curved rods 36. During the process of the clamping strips 72 approaching the upper side plates 32 (or lower side plates 33), the curved rods 36 are driven to rotate forward, so that the curved rods 36 drive the corresponding limiting rods 37 to move vertically upward, realizing the opening of the openings of the corresponding upper clamping grooves 321 (or lower clamping grooves 331).

[0051] After that, the lateral movement module 4 drives the clamping module 7 after clamping a plurality of cylindrical battery cells 100 to move horizontally away from the upper side plates 32 (or lower side plates 33) to directly above one of the discharging conveyors 10. During this process, the clamping covers 721 move horizontally away from the openings of the corresponding upper clamping grooves 321 (or lower clamping grooves 331). At this time, the clamping strips 72 maintain the abutting state with the curved rods 36. After complete detachment, the clamping strips 72 move horizontally away from abutting against the curved rods 36, and under the driving force of the elastic force of the elastic members, the corresponding limiting rods 37 are pushed to close the openings of the upper clamping grooves 321 (or lower clamping grooves 331) to prevent subsequent cylindrical battery cells 100 from detaching from the openings of the upper clamping grooves 321 (or lower clamping grooves 331).

[0052] The inner cavity of the clamping cover 721 is provided with a positive test probe, and the side wall of the clamping platform 723 is provided with a negative test probe. When the clamping cover 721 and the clamping platform 723 clamp the cylindrical battery cell 100, the positive test probe and the negative test probe are abutted against the positive and negative poles of the cylindrical battery cell 100. At this time, the internal resistance, voltage, etc. of the cylindrical battery cell 100 are detected by an internally connected internal resistance meter.

[0053] With the cooperation of the vertical movement module 9 and the longitudinal movement module 5, the clamping module 7 conveys the cylindrical battery cells 100 in sequence on several groups of discharging conveyors 10. When the cylindrical battery cells 100 are moved to the corresponding discharging conveyors 10, the telescopic electromagnet 722 shortens to drive the clamping cover 721 away from the corresponding clamping platform 723, so that the positive terminal of the cylindrical battery cell 100 is relatively withdrawn from the clamping cover 721, thereby realizing the release of the corresponding cylindrical battery cell 100 without affecting other groups.

[0054] Since the positive terminals of the cylindrical battery cells 100 between the two upper side plates 32 face left, and the positive terminals of the cylindrical battery cells 100 between the two lower side plates 33 face right, therefore, a rotating module 6 is provided. The rotating module 6 is used to drive the clamping module 7 to rotate 180°, so that the clamping covers 721 and clamping platforms 723 of the two groups of clamping strips 72 exchange positions; and the cylindrical battery cells 100 with different orientations are grasped in the same orientation to the discharging conveyor 10 through the rotating module 6.

[0055] A guiding track 8 is relatively fixedly arranged, including an upper track 82, a lower track 83 and a middle track 81. The upper track 82 and the middle track 81 are connected by a curved track 84, and the lower track 83 and the middle track 81 are connected by another group of curved tracks 84. The vertical movement module 9 includes an upper platform 91, a lower platform 92 and a telescopic device 93. The upper platform 91 is relatively fixed. The telescopic device 93 uses a telescopic rod. The lower platform 92 is relatively movable for the installation of the clamping module 7, and rollers 921 are installed on the side wall of the lower platform 92;

[0056] When the transverse movement module 4 drives the clamping cover 721 and the clamping platform 723 to move horizontally out of the corresponding upper clamping groove 321 (or lower clamping groove 331), at this time, the rollers 921 just move in the upper track 82 (or lower track 83); after the clamping cover 721 and the clamping platform 723 are completely separated from the upper clamping groove 321 (or lower clamping groove 331), the rollers 921 are guided into the middle track 81 through the curved track 84. During this process, the telescopic device 93 follows for telescopic adaptation. When the rollers 921 are located in the middle track 81, the clamped cylindrical battery cell 100 is located a short distance above the discharging conveyor 10;

[0057] A turning plate 85 is rotatably connected at the three-way intersection of the upper track 82, the lower track 83 and the middle track 81. By closing a group of the upper track 82 or the lower track 83 through the turning plate 85, the middle track 81 is communicated with a group of the upper track 82 or the lower track 83, and the remaining upper track 82 or lower track 83 is blocked.

[0058] The counter between the two groups of upper side plates 32 detects that the quantity of the cylindrical battery cells 100 meets the standard. Through the control of the central processing unit, the power device drives the steering plate 85 to rotate forward, so that the steering plate 85 closes the lower track 83; the counter between the two groups of lower side plates 33 detects that the quantity of the cylindrical battery cells 100 meets the standard. Through the control of the central processing unit, the power device drives the steering plate 85 to rotate reversely, so that the steering plate 85 closes the upper track 82; the front roller 921 is relatively located at the middle track 81.

[0059] By rolling the roller 921 in the upper track 82 and the lower track 83, the movement of the clamping bar 72 is precisely controlled to the outside of the upper clamping groove 321 (or the lower clamping groove 331), which is beneficial for the two-way telescopic device 71 to drive the clamping cover 721 and the clamping table 723 to move longitudinally and insert into the upper clamping groove 321 (or the lower clamping groove 331).

[0060] In the present invention, the electrical equipment is connected to an external power supply through an external control switch.

[0061] In the description of this specification, the descriptions with reference to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0062] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principles and practical applications of the present invention, so that those skilled in the relevant technical fields can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A cylindrical battery cell voltage sorting machine, comprising a feed hopper (1) arranged above a feed conveyor (2), and guide plates (31) arranged on opposite sides of the feed conveyor (2) in the conveying direction, characterized in that: The spacing between the two groups of guide plates (31) gradually narrows from the feed hopper (1) to match the column length of the cylindrical battery cell (100); the ends of the two groups of guide plates (31) facing away from the feed hopper (1) are provided with an upper side plate (32) and a lower side plate (33) connected in one piece and distributed up and down; an upper guide groove (311) extending horizontally to the upper side plate (32) on the same side is provided on the inner side of one group of guide plates (31); and a lower guide groove (312) extending to the lower side plate (33) on the same side is provided on the inner side of the other group of guide plates (31); the structures of the upper guide groove (311) and the lower guide groove (312) are matched with the positive terminal of the cylindrical battery cell (100); A clamping module (7) for clamping the cylindrical battery cell (100) and two or more groups of discharge conveyors (10) are provided, wherein the clamping module (7) moves between the two or more groups of discharge conveyors (10), the upper side plate (32) and the lower side plate (33) in cooperation with a horizontal moving module (4), a longitudinal moving module (5) and a vertical moving module (9); The clamping module (7) comprises a bidirectional telescopic device (71) and clamping strips (72) connected to two output ends thereof, wherein a group of the clamping strips (72) are provided with clamping covers (721) at equal intervals on the inner side thereof, the inner cavity of the clamping covers (721) being adapted to the positive terminal of the cylindrical battery cell (100), and another group of the clamping strips (72) are provided with clamping platforms (723) at equal intervals on the inner side thereof, the clamping covers (721) and the clamping platforms (723) being in one-to-one correspondence and being provided with test probes, the test probes being electrically connected to an internal resistance meter, and being provided with telescopic electromagnets (722) in one-to-one correspondence with the clamping covers (721).

2. The cylindrical battery cell voltage sorting machine according to claim 1, wherein: A cross rotating frame (35) is rotatably connected to the connection points of the guide plate (31), the upper side plate (32) and the lower side plate (33).

3. The cylindrical battery cell voltage sorting machine according to claim 2, characterized in that: The two groups of upper side plates (32) and the two groups of lower side plates (33) are respectively provided with upper clamping grooves (321) and lower clamping grooves (331) extending inwardly from the edges in a transverse direction.

4. The cylindrical battery cell voltage sorting machine according to claim 3, wherein: The openings of the upper clamping groove (321) and the lower clamping groove (331) are slidably connected to corresponding limit rods (37), and the limit rods (37) are slidably used to open or close the openings of the corresponding upper clamping groove (321) or lower clamping groove (331). An elastic member connected to the limit rod (37) is provided to drive the limit rod (37) to close the openings of the corresponding upper clamping groove (321) or lower clamping groove (331).

5. The cylindrical battery cell voltage sorting machine according to claim 4, wherein: A curved rod (36) is rotatably connected, one end of the curved rod (36) is provided with a slide groove (361), one end of the limiting rod (37) slides in the corresponding slide groove (361), the other end of the curved rod (36) extends to the outer side of the corresponding upper side plate (32) or lower side plate (33), and the clamping strip (72) abuts against the other end of the curved rod (36) when it moves to the corresponding upper clamping groove (321) or lower clamping groove (331).

6. The cylindrical cell voltage sorting machine according to claim 5, wherein: The vertical movement module (9) includes an upper platform (91) and a lower platform (92), and a telescopic device (93) is connected between the upper platform (91) and the lower platform (92). The telescopic amount of the telescopic device (93) is adapted to the distance between the upper clamping groove (321) and the lower clamping groove (331).

7. The cylindrical battery cell voltage sorting machine according to claim 6, wherein: The clamping module (7) is installed at the bottom of the lower platform (92), and a rotation module (6) is provided for driving the clamping module (7) to rotate.

8. A cylindrical battery cell voltage sorting machine according to claim 7, characterized in that: A guiding track (8) is provided, and rollers (921) are installed on the lower platform (92) to move along the guiding track (8) on the guiding track (8).

9. A cylindrical battery cell voltage sorting machine according to claim 8, characterized in that: The guiding track (8) includes an upper track (82), a lower track (83) and a middle track (81). The upper track (82) and the lower track (83) are connected through corresponding curved tracks (84) and the middle track (81). A steering plate (85) is installed at the intersection of the middle track (81) with the upper track (82) and the lower track (83). The steering plate (85) is driven to rotate by a power device, and the middle track (81) is controlled to be connected with a set of the upper track (82) or the lower track (83) through the steering plate (85).

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