Square cell twelve-gear OCV test sorting machine

Abstract

The invention discloses a twelve-gear OCV test sorting machine for square battery cells, which comprises an operation table, a control panel, a mechanical arm I, a mechanical arm II, a feeding conveying belt, a material guide plate I, a material guide plate II and a twelve-gear material distribution channel, the square battery cell can be conveyed in a limiting manner through the two symmetrically arranged material guide plates I and the two symmetrically arranged material guide plates II, so that the wiring end of the square battery cell is always arranged upwards, and the resistance value and the voltage value of the square battery cell can be conveniently measured by a subsequent testing mechanism; the square battery cells with different sizes can be limited by the two symmetrically arranged first material guide plates and the two symmetrically arranged second material guide plates, the universality and applicability of the device are improved, and the square battery cells are scanned at the same time through the first laser displacement sensor and the second laser displacement sensor to test the thickness. And therefore, the bulged unqualified battery cells are removed through the clamping jaw on the mechanical arm II.

Description

Technical Field

[0001] The present invention relates to the technical field of battery cell production, and in particular to a twelve-stage OCV testing and sorting machine for square batteries. Background Art

[0002] At present, due to the problems of environmental pollution, water pollution, land pollution and so on caused by traditional energy, human beings are exploring a new energy. New energy batteries are widely used and promoted because of their recyclable characteristics. Lithium batteries are favored because of their high voltage, high energy density and long cycle life. However, with the widespread use of lithium batteries, the recycling of retired batteries has become the main problem facing the current society. If retired batteries are scrapped directly, it will not only cause waste of resources, but also cause environmental pollution. Therefore, retired batteries can be recycled for cascade reuse.

[0003] Second-hand lithium batteries refer to automotive power lithium batteries whose performance still meets the requirements for use in small-power electric vehicles after retirement. They are composed of several single cells and a battery management system. The single cells and the battery management system can be placed in a single mechanical and electrical unit or separately. Since the historical usage of second-hand lithium batteries is unclear and the number of cycles of the battery cells cannot be obtained, the residual value of the battery cells can only be determined by measuring the battery cell capacity to achieve the purpose of reuse.

[0004] CN115815155A discloses a ten-level universal sorting and testing device for cylindrical battery cells, which adopts an integrated structure. However, it is only applicable to cylindrical battery cells and cannot sort square battery cells. Moreover, many sorting devices cannot test the thickness of battery cells, so it is impossible to eliminate non-compliant battery cells such as those with leakage or bulging. Summary of the invention

[0005] The purpose of the present invention is to provide a twelve-stage OCV test and sorting machine for square batteries to solve the technical problems in the prior art that square batteries cannot be sorted, and many sorting devices cannot test the thickness of batteries, and therefore cannot eliminate non-compliant batteries such as leaking batteries and bulging batteries.

[0006] The technical problem to be solved by the present invention can be achieved by the following technical solutions:

[0007] A 12-stage OCV test sorting machine for square cells, comprising:

[0008] An operating table, a lifting frame 1 and a lifting frame 2 are fixedly connected to both sides of the upper end surface of the operating table, a top frame is fixedly connected to the lifting frame 1 and the lifting frame 2, a mechanical arm 1 and a mechanical arm 2 are respectively arranged on the top frame, a clamping claw is fixedly connected to the execution end of the mechanical arm 2, a bracket 1 is fixedly connected to the operating table, a feeding conveyor belt is arranged on the bracket 1, a guide plate 1 is symmetrically arranged on the feeding conveyor belt, a guide plate 2 is fixedly connected to one end of the guide plate 1, the height of the guide plate 2 is lower than that of the guide plate 1, a feeding conveyor belt is butt-jointedly arranged at the discharging end along the feeding direction of the feeding conveyor belt, the guide plate 2 is arranged on the feeding conveyor belt, a material dividing conveyor belt is also arranged on the operating table, and a twelve-speed material dividing channel is arranged on the material dividing conveyor belt;

[0009] The testing mechanism comprises a mounting plate, an end face of the mounting plate is fixedly connected with a mechanism connecting end, the testing mechanism is fixedly connected to an execution end of a robot arm 1 through the mechanism connecting end, electric push rod support plates are fixedly connected on both sides of the mounting plate, an electric push rod is fixedly connected to the electric push rod support plate, a mechanism telescopic rod is fixedly connected to the driving end of the electric push rod, a connecting plate 1 is fixedly connected to the mechanism telescopic rod, a connecting plate 2 is fixedly connected to the connecting plate 1, a docking sleeve is arranged on the end face of the connecting plate 2, and a test plate is arranged inside the docking sleeve.

[0010] As a further solution of the present invention: connecting plate one is vertically arranged on the end face of connecting plate two, the docking sleeve is a clamping sleeve with a U-shaped cross-section, the cross-section of the test plate is U-shaped, a dustproof plate for dustproofing the test plate is fixedly connected to the mounting plate, and a nozzle is provided on connecting plate two.

[0011] As a further solution of the present invention: the nozzle is arranged at the test plate in the docking sleeve, and a gas nozzle is fixedly connected to the connecting plate, and the gas nozzle is communicated with the nozzle.

[0012] As a further solution of the present invention: a bracket two and a bracket three are respectively fixedly connected to the operating table, the feed conveyor belt is installed on the bracket two, and the material distribution conveyor belt is installed on the bracket three.

[0013] As a further solution of the present invention: two symmetrically arranged material guide plates 1 and symmetrically arranged material guide plates 2 are provided, and brackets 1 are provided on both sides of the feeding conveyor belt, and the bracket 1 on one side is fixedly connected to a cylinder bracket, and the cylinder bracket is fixedly connected to a cylinder, and the driving end of the cylinder is fixedly connected to a cylinder telescopic rod, and the bracket 1 on the other side is fixedly connected to a material guide plate 1, and the other material guide plate 1 is fixedly connected to the cylinder telescopic rod.

[0014] As a further solution of the present invention: it also includes: symmetrically distributed laser displacement sensor 1 and laser displacement sensor 2, and the laser displacement sensor 1 and laser displacement sensor 2 are respectively arranged on both sides of the two guide plates 2.

[0015] As a further solution of the present invention: the operating table is fixedly connected to a mounting platform, the laser displacement sensor 1 is fixedly connected to the mounting platform, and the laser displacement sensor 2 is fixedly connected to the bracket 2.

[0016] As a further solution of the present invention: the bottom surface of the operating table is fixedly connected with supporting feet near the four corners, the lower end of the bracket is fixedly connected with a supporting frame, and a control panel is arranged on the top frame.

[0017] Beneficial effects of the present invention:

[0018] 1. When the present invention is in use, the square battery cells are loaded through the loading conveyor belt, and the square battery cells can be limitedly conveyed through two symmetrically arranged guide plates 1 and two symmetrically arranged guide plates 2, so that the terminal of the square battery cells is always set upward, which is convenient for the subsequent testing mechanism to measure the resistance value and voltage value of the square battery cells. The cylinder drives the cylinder telescopic rod to move, thereby driving the guide plate 1 and the guide plate 2 on one side to move, so that the symmetrically arranged two guide plates 1 and the symmetrically arranged two guide plates 2 can limit the square battery cells of different sizes, thereby improving the versatility and applicability of the device. The height of the guide plate 2 is lower than that of the guide plate 1, so that the guide plate 2 can make way for the laser displacement sensor 1 and the laser displacement sensor 2 while limiting the conveyance of the square battery cells. The laser displacement sensor 1 and the laser displacement sensor 2 simultaneously scan the square battery cells to test the thickness, so that the bulging unqualified battery cells are removed by the clamps on the mechanical arm 2;

[0019] 2. When the present invention is in use, the first mechanical arm drives the test mechanism to be aligned and sleeved on the square battery cell, and is electrically connected to the positive and negative terminals of the square battery cell through two test boards. The precision voltage internal resistance measuring instrument electrically connected on the two test boards can measure the resistance value and voltage value of the square battery cell, and then the residual value of the square battery cell can be obtained after being processed by the processor in the control panel. The square battery cell is placed in the twelve-grade material distribution channel through the clamping claws on the second mechanical arm, so that the square battery cell is classified and archived. The telescopic rod of the mechanism can be driven to move telescopically through the electric push rod, so that the distance between the two test boards is adjustable, and square battery cells of different sizes can be tested, further improving the versatility and applicability of the device. By arranging a dustproof plate and arranging the test board in the docking sleeve, dust can be prevented from falling on the test board and affecting the progress of the test work. In addition, the air nozzle can be connected to the air pipe, and air can be sprayed to the nozzle through the air nozzle. The gas sprayed from the nozzle can automatically clean the dust on the test board, thereby improving the reliability and automation of the device, and making it more convenient and worry-free to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1The three-dimensional structure of the present invention is shown in FIG. Figure 1 ;

[0022] Figure 2 The three-dimensional structure of the present invention is shown in FIG. Figure 2 ;

[0023] Figure 3 It is a schematic diagram of the structure of each mechanism on the operating table of the present invention;

[0024] Figure 4 The three-dimensional structure diagram of the test mechanism of the present invention is shown in FIG. Figure 1 ;

[0025] Figure 5 The three-dimensional structure diagram of the testing mechanism of the present invention is shown in FIG. Figure 1 .

[0026] In the figure: 1. operating table; 2. supporting feet; 3. supporting frame; 4. lifting frame 1; 5. lifting frame 2; 6. top frame; 7. control panel; 8. testing mechanism; 81. mounting plate; 82. mechanism connecting end; 83. dustproof plate; 84. electric push rod supporting plate; 85. electric push rod; 86. mechanism telescopic rod; 87. connecting plate 1; 88. connecting plate 2; 89. air nozzle; 810. docking sleeve; 811. testing plate; 812. nozzle ; 9. Robotic arm one; 10. Robotic arm two; 11. Bracket one; 12. Feeding conveyor belt; 13. Cylinder bracket; 14. Cylinder; 15. Cylinder telescopic rod; 16. Guide plate one; 17. Guide plate two; 18. Bracket two; 19. Feeding conveyor belt; 20. Mounting table; 21. Laser displacement sensor one; 22. Laser displacement sensor two; 23. Bracket three; 24. Material distribution conveyor belt; 25. Twelve-speed material distribution channel. DETAILED DESCRIPTION

[0027] 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.

[0028] like Figure 1-Figure 5 As shown, a square battery cell twelve-stage OCV test sorting machine includes:

[0029] An operating table 1, with a lifting frame 1 4 and a lifting frame 2 5 fixedly connected to both sides of the upper end surface of the operating table 1, a top frame 6 fixedly connected to the lifting frame 1 4 and the lifting frame 2 5, a mechanical arm 1 9 and a mechanical arm 2 10 respectively arranged on the top frame 6, a clamping claw fixedly connected to the execution end of the mechanical arm 2 10, a bracket 11 fixedly connected to the operating table 1, a feeding conveyor belt 12 arranged on the bracket 11, a guide plate 16 symmetrically arranged on the feeding conveyor belt 12, a guide plate 2 17 fixedly connected to one end of the guide plate 16, the height of the guide plate 2 17 is lower than that of the guide plate 16, a feeding conveyor belt 19 is butt-jointedly arranged at the discharging end along the feeding direction of the feeding conveyor belt 12, the guide plate 2 17 is arranged on the feeding conveyor belt 19, a material dividing conveyor belt 24 is also arranged on the operating table 1, and a twelve-stage material dividing channel 25 is arranged on the material dividing conveyor belt 24;

[0030] The testing mechanism 8 comprises a mounting plate 81, on the end face of which a mechanism connecting end 82 is fixedly connected, the testing mechanism 8 is fixedly connected to the execution end of the robot arm 9 via the mechanism connecting end 82, both sides of the mounting plate 81 are fixedly connected with electric push rod support plates 84, on the electric push rod support plates 84 an electric push rod 85 is fixedly connected, on the driving end of the electric push rod 85 a mechanism telescopic rod 86 is fixedly connected, on the mechanism telescopic rod 86 a connecting plate 1 87 is fixedly connected, on the connecting plate 1 87 a connecting plate 2 88 is fixedly connected, on the end face of the connecting plate 2 88 a docking sleeve 810 is arranged, and inside the docking sleeve 810 a test plate 811 is arranged.

[0031] The connecting plate 1 87 is vertically arranged on the end face of the connecting plate 2 88, the docking sleeve 810 is a clamping sleeve with a U-shaped cross-section, the cross-section of the test plate 811 is U-shaped, and a dustproof plate 83 for dustproofing the test plate 811 is fixedly connected to the mounting plate 81, and a nozzle 812 is provided on the connecting plate 2 88, and the nozzle 812 is arranged at the test plate 811 in the docking sleeve 810, and an air nozzle 89 is fixedly connected to the connecting plate 1 87, and the air nozzle 89 and the nozzle 812 are connected.

[0032] The operating table 1 is respectively fixedly connected with a bracket 2 18 and a bracket 3 23 , the feeding conveyor belt 19 is installed on the bracket 2 18 , and the material distribution conveyor belt 24 is installed on the bracket 3 23 .

[0033] There are two symmetrically arranged guide plates 16 and two symmetrically arranged guide plates 17, and brackets 11 are arranged on both sides of the feeding conveyor belt 12. The bracket 11 on one side is fixedly connected to a cylinder bracket 13, and the cylinder bracket 13 is fixedly connected to a cylinder 14. The driving end of the cylinder 14 is fixedly connected to a cylinder telescopic rod 15. The bracket 11 on the other side is fixedly connected to a guide plate 16, and the other guide plate 16 is fixedly connected to the cylinder telescopic rod 15.

[0034] A square battery cell twelve-stage OCV testing and sorting machine also includes: symmetrically distributed laser displacement sensor 1 21 and laser displacement sensor 2 22, the laser displacement sensor 1 21 and laser displacement sensor 2 22 are respectively arranged on both sides of two guide plates 2 17, the operating table 1 is fixedly connected to the mounting table 20, the laser displacement sensor 1 21 is fixedly connected to the mounting table 20, and the laser displacement sensor 2 22 is fixedly connected to the bracket 2 18.

[0035] In some specific implementation schemes, the bottom surface of the operating table 1 is fixedly connected with supporting feet 2 near the four corners, the lower end of the bracket 11 is fixedly connected with a supporting frame 3, and a control panel 7 is arranged on the top frame 6.

[0036] The test structure also includes a precision voltage internal resistance meter. The two test boards 811 are electrically connected to the precision voltage internal resistance meter. The residual value of the square battery cell is determined by the measured resistance value and voltage value. The data is fed back to the processor set in the control panel 7 for processing, and the square battery cells are classified and archived.

[0037] In order to facilitate the understanding of the embodiments of this solution by those skilled in the art, the working principle of this solution is briefly described in combination with specific application scenarios:

[0038] When in use, the square battery cell is loaded through the loading conveyor belt 12, and the square battery cell can be limitedly conveyed by two symmetrically arranged guide plates 16 and two symmetrically arranged guide plates 17, so that the connection terminal of the square battery cell is always set upward, which is convenient for the subsequent testing mechanism 8 to measure the resistance value and voltage value of the square battery cell, and the cylinder 14 drives the cylinder telescopic rod 15 to move, thereby driving the guide plate 16 and the guide plate 17 on one side to move, so that the two symmetrically arranged guide plates 16 and the two symmetrically arranged guide plates 17 can be moved. The material plate 2 17 can limit the square cells of different sizes, improving the versatility and applicability of the device. The height of the material guide plate 2 17 is lower than that of the material guide plate 1 16, so that the material guide plate 2 17 can make way for the laser displacement sensor 1 21 and the laser displacement sensor 2 22 while limiting the conveyance of the square cells. The laser displacement sensor 1 21 and the laser displacement sensor 2 22 simultaneously scan the square cells to test the thickness, so that the bulging unqualified cells are removed by the grippers on the robot arm 2 10, and the robot arm 1 9 drives the test mechanism 8 is set on the square battery cell, and is electrically connected to the positive and negative terminals of the square battery cell through two test boards 811. The precision voltage internal resistance measuring instrument electrically connected to the two test boards 811 can measure the resistance value and voltage value of the square battery cell, and then the residual value of the square battery cell can be obtained after being processed by the processor in the control panel 7. The square battery cell is placed in the twelve-grade material distribution channel 25 through the clamping claw on the mechanical arm 2 10, so as to classify and archive the square battery cells, and the mechanism telescopic rod 86 can be driven by the electric push rod 85 to telescopically move, so that the two test boards can be used to measure the resistance value and voltage value of the square battery cell. The distance between the test plates 811 is adjustable, and square battery cells of different sizes can be tested, further improving the versatility and applicability of the device. By providing a dustproof plate 83 and placing the test plate 811 in the docking sleeve 810, dust can be prevented from falling on the test plate 811 and affecting the progress of the test. In addition, the air nozzle 89 can be connected to the air pipe, and air can be sprayed to the nozzle 812 through the air nozzle 89. The gas sprayed from the nozzle 812 can automatically clean the dust on the test plate 811, thereby improving the reliability and automation of the device and making it more convenient and worry-free to use.

[0039] Several embodiments of the present invention are described in detail above, but the embodiments of the present invention are not limited thereto and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A 12-speed OCV test and sorting machine for square cells, characterized in that: include: An operating table (1) is provided, wherein a lifting frame 1 (4) and a lifting frame 2 (5) are fixedly connected to both sides of the upper end surface of the operating table (1), and a top frame (6) is fixedly connected to the lifting frame 1 (4) and the lifting frame 2 (5), and a mechanical arm 1 (9) and a mechanical arm 2 (10) are respectively arranged on the top frame (6), and a clamp is fixedly connected to the execution end of the mechanical arm 2 (10), and a bracket 1 (11) is fixedly connected to the operating table (1), and a feeding conveyor belt (12) is arranged on the bracket 1 (11), and the feeding conveyor belt (12) ) is symmetrically provided with a material guide plate 1 (16), one end of the material guide plate 1 (16) is fixedly connected with a material guide plate 2 (17), the height of the material guide plate 2 (17) is lower than the height of the material guide plate 1 (16), a material conveying belt (19) is butt-jointedly provided at the discharge end along the material conveying direction of the loading conveying belt (12), the material guide plate 2 (17) is arranged on the material conveying belt (19), a material dividing conveying belt (24) is also provided on the operating table (1), and a twelve-stage material dividing channel (25) is provided on the material dividing conveying belt (24); The test mechanism (8) comprises a mounting plate (81), a mechanism connection end (82) is fixedly connected to the end surface of the mounting plate (81), the test mechanism (8) is fixedly connected to the execution end of the mechanical arm 1 (9) through the mechanism connection end (82), both sides of the mounting plate (81) are fixedly connected to electric push rod support plates (84), the electric push rod support plates (84) are fixedly connected to the electric push rod (85), the driving end of the electric push rod (85) is fixedly connected to a mechanism telescopic rod (86), the mechanism telescopic rod (86) is fixedly connected to a connecting plate 1 (87), the connecting plate 1 (87) is fixedly connected to a connecting plate 2 (88), a docking sleeve (810) is arranged on the end surface of the connecting plate 2 (88), and a test plate (811) is arranged inside the docking sleeve (810).

2. A 12-speed OCV testing and sorting machine for square batteries according to claim 1, characterized in that: The first connecting plate (87) is vertically arranged on the end surface of the second connecting plate (88); the docking sleeve (810) is a clamping sleeve with a U-shaped cross section; the cross section of the test plate (811) is U-shaped; a dustproof plate (83) for preventing dust from the test plate (811) is fixedly connected to the mounting plate (81); and a nozzle (812) is provided on the second connecting plate (88).

3. A 12-speed OCV testing and sorting machine for square batteries according to claim 2, characterized in that: The nozzle (812) is arranged at the test plate (811) in the docking sleeve (810), and the connecting plate (87) is fixedly connected with an air nozzle (89), and the air nozzle (89) and the nozzle (812) are in communication.

4. A 12-speed OCV testing and sorting machine for square batteries according to claim 1, characterized in that: The operating table (1) is respectively fixedly connected with a second bracket (18) and a third bracket (23), a material feeding conveyor belt (19) is installed on the second bracket (18), and a material distribution conveyor belt (24) is installed on the third bracket (23).

5. A 12-speed OCV testing and sorting machine for square batteries according to claim 1, characterized in that: Two symmetrically arranged material guide plates (16) and two symmetrically arranged material guide plates (17) are provided. A bracket (11) is provided on both sides of the feeding conveyor belt (12). A cylinder bracket (13) is fixedly connected to the bracket (11) on one side. A cylinder (14) is fixedly connected to the cylinder bracket (13). A cylinder telescopic rod (15) is fixedly connected to the driving end of the cylinder (14). A material guide plate (16) is fixedly connected to the bracket (11) on the other side. The other material guide plate (16) is fixedly connected to the cylinder telescopic rod (15).

6. A 12-speed OCV testing and sorting machine for square batteries according to claim 1, characterized in that: Also includes: The laser displacement sensor 1 (21) and the laser displacement sensor 2 (22) are symmetrically distributed, and the laser displacement sensor 1 (21) and the laser displacement sensor 2 (22) are respectively arranged on both sides of the two material guide plates 2 (17).

7. A 12-speed OCV testing and sorting machine for square batteries according to claim 6, characterized in that: The operating table (1) is fixedly connected to a mounting platform (20), a first laser displacement sensor (21) is fixedly connected to the mounting platform (20), and a second laser displacement sensor (22) is fixedly connected to a second bracket (18).

8. A 12-speed OCV testing and sorting machine for square batteries according to claim 1, characterized in that: The bottom surface of the operating table (1) is fixedly connected to supporting feet (2) near the four corners, the lower end of the bracket (11) is fixedly connected to a supporting frame (3), and a control panel (7) is arranged on the top frame (6).

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