Automatic detection equipment based on lithium battery production line

Abstract

The invention relates to the technical field of battery manufacturing, in particular to automatic detection equipment based on a lithium battery production line, which comprises a rack, two supporting seats are mounted on the rack, two feeding conveying belts and two discharging conveying belts are respectively in transmission connection with the two supporting seats, and the two feeding conveying belts and the two discharging conveying belts are symmetrically arranged; a positive and negative electrode detection mechanism is mounted at the position, close to the feeding conveying belt, of the rack, a sorting mechanism is mounted at the position, close to the discharging conveying belt, of the rack, and a material conveying mechanism is arranged between the feeding conveying belt and the discharging conveying belt; the automatic detection equipment based on the lithium battery production line can detect whether the positive and negative electrodes of the lithium battery have appearance defects or not, meanwhile, the positive and negative electrode exchange assembly can be used for reversing the lithium battery, so that the lithium battery can be smoothly detected in subsequent circulation, the problem of false detection of the lithium battery is solved, and the detection efficiency of the lithium battery can be improved; and the running speed of a production line can be followed during mass production.

Description

Technical Field

[0001] The present invention relates to the technical field of battery manufacturing, and in particular to automated testing equipment based on a lithium battery production line. Background Art

[0002] With the transformation of the global energy structure and the rapid development of new energy vehicles, the market demand for lithium batteries as a core power source continues to grow. The production process of lithium batteries involves multiple complex links, including electrode preparation, cell assembly, liquid injection, packaging, formation, capacity division, etc. The quality control of each link directly affects the performance, safety and service life of the battery. During the production of lithium batteries, testing equipment is needed to detect the quality of each lithium battery. During the inspection, since the positive and negative poles of some lithium batteries are in opposite positions before entering the testing equipment, in the subsequent inspection, the contacts need to contact the positive and negative poles of the lithium battery and conduct quality inspection. The opposite positive and negative poles will cause the lithium battery to be unable to be detected, and it will be rejected as a defective product, resulting in the problem of false detection. In addition, the efficiency of only detecting a single lithium battery each time is low, and there is still the problem of not being able to keep up with the speed of the production line when facing mass production. Summary of the invention

[0003] In view of the deficiencies of the prior art, the present invention provides an automated testing device based on a lithium battery production line, which solves the technical problems of misdetection of lithium batteries and difficulty in batch testing.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: an automated testing device based on a lithium battery production line, comprising a frame, two support seats are installed on the frame, and the two support seats are respectively connected to a feeding conveyor belt and a unloading conveyor belt in a transmission manner, the feeding conveyor belt and the unloading conveyor belt are both two and symmetrically arranged, a positive and negative electrode detection mechanism is installed at a position close to the feeding conveyor belt on the frame, and a sorting mechanism is installed at a position close to the unloading conveyor belt, a material conveying mechanism is arranged between the feeding conveyor belt and the unloading conveyor belt, a fixing frame fixed to the frame is arranged above the material conveying mechanism, and a quality inspection mechanism is installed on the top of the fixing frame;

[0005] The positive and negative pole detection mechanism includes a mounting frame 1 and a mounting frame 2 fixedly connected to the frame. The mounting frame 1 is U-shaped and has a plurality of equidistantly distributed industrial cameras installed at its two ends. A plurality of equidistantly distributed positive and negative pole exchange components are installed on the inner side of the mounting frame 2. The top of the positive and negative pole exchange component passes through the frame and the mounting frame 1 and is located in the gap between the two feeding conveyor belts.

[0006] Preferably, the positive and negative pole swapping assembly comprises an electric push rod one installed at the bottom of the mounting frame two, a push rod is movably connected to the telescopic shaft of the electric push rod one through a rotating joint, a base with an inwardly concave surface is fixedly provided on the top of the push rod, a fixing sleeve fixedly connected to the mounting frame two is sleeved on the outer wall of the push rod, two guide members located inside the fixing sleeve are also embedded on the outer wall of the push rod, and the two guide members are symmetrically arranged, and a guide groove used in conjunction with the guide member is provided on the inner wall of the fixing sleeve.

[0007] Preferably, the guide member includes a spring 1 embedded in the push rod, one end of the spring 1 is connected to a guide pin slidably arranged on the outer wall of the push rod, and a protrusion is provided on the outer wall of the guide pin.

[0008] Preferably, the guide groove consists of a release section, a spiral guide section and a straight groove section, the release section and the straight groove section are respectively connected to the bottom and top of the spiral guide section, and the bottom of the straight groove section is provided with a compression slope.

[0009] Preferably, the sorting mechanism includes an electric push rod 2 installed on the side wall of the frame, a movable frame is fixedly provided on the telescopic shaft of the electric push rod 2, a motor 1 is installed on the top of the movable frame, an incomplete gear is fixedly provided on the output shaft of the motor 1, and a plurality of elastic pusher assemblies distributed in parallel are provided below the incomplete gear, and the plurality of elastic pusher assemblies are all installed on a mounting frame 3, the mounting frame 3 is fixedly connected to the side wall of the frame, and a guide rod slidably connected to the movable frame is also fixedly provided on the mounting frame 3.

[0010] Preferably, the elastic pusher assembly includes a fixed block fixedly connected to the mounting frame three, a push rod is sleeved on the fixed block, a tooth groove is provided on the surface of the push rod and intermittently meshes with the incomplete gear, and a spring two connected to the fixed block is sleeved on the outer wall of the push rod.

[0011] Preferably, the material conveying mechanism includes a second motor installed on a frame, a rotating shaft is fixedly provided on the output shaft of the second motor, the rotating shaft is rotatably connected to the frame, two conveying plates are fixedly provided on the rotating shaft, a plurality of slots are provided on the conveying plates, and an outer baffle fixedly connected to the bottom of the fixed frame is provided above the two conveying plates.

[0012] Preferably, the quality inspection mechanism includes a motor three installed on the top of the fixed frame, a turntable is fixedly provided on the output shaft of the motor three, the bottom of the turntable is hinged to the tops of two movable plates respectively through two connecting rods, the two movable plates are movably connected to the bottom of the fixed frame through a guide frame, a plurality of contacts are provided on the movable plates, the plurality of contacts are connected to one end of a test board through wires, the test board is installed on the bottom of the fixed frame, and an indicator light is installed on the test board.

[0013] Preferably, two symmetrically arranged central side plates are fixedly provided on one side of the positive and negative electrode detection mechanism.

[0014] Preferably, a material guide plate installed on a frame is provided on the side of the unloading conveyor belt away from the sorting mechanism.

[0015] By means of the above technical solution, the present invention provides an automated testing device based on a lithium battery production line, which has at least the following beneficial effects:

[0016] 1. The automated inspection equipment based on the lithium battery production line is equipped with positive and negative electrode inspection mechanisms. The industrial camera can be used to capture images of the positive and negative electrodes of the lithium battery, thereby detecting whether the positive and negative electrodes have appearance defects. At the same time, the directions of the positive and negative electrodes of the lithium battery can be distinguished. When the positive and negative electrodes of the lithium battery are in opposite positions, the positive and negative electrode swapping components can be used to reverse the direction of the lithium battery, so that the lithium battery can be successfully inspected in subsequent circulation, eliminating the problem of false detection of lithium batteries.

[0017] 2. The automated testing equipment based on the lithium battery production line is equipped with a material movement mechanism and a quality inspection mechanism. The conveying plate can drive multiple lithium batteries to the inspection station at one time. Since multiple contacts are provided on the movable plate, multiple lithium batteries can be inspected at one time, which greatly improves the inspection efficiency of lithium batteries and can keep up with the operating speed of the production line when facing mass production.

[0018] 3. The automated inspection equipment based on the lithium battery production line is provided with a sorting mechanism. When an unqualified lithium battery is detected, the push rod can be driven to move by the incomplete gear, so that the spring 2 accumulates force. When the incomplete gear is separated from the push rod, the spring 2 pushes the push rod to remove the unqualified lithium battery, thereby preventing the unqualified lithium battery from flowing into the subsequent processing steps.

[0019] 4. The automated testing equipment based on the lithium battery production line is equipped with a material conveying mechanism. On the one hand, a conveying plate can be used to move multiple lithium batteries into the testing station for testing at one time. On the other hand, when all the lithium batteries in the slots have defects in appearance (5 as shown in the figure), the conveying plate rotates clockwise and causes the lithium batteries to fall directly from the lower position, thereby achieving rapid unloading and improving the testing efficiency of the lithium batteries. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the overall front of the present invention;

[0022] Figure 2 It is a schematic diagram of the three-dimensional structure of the rear of the whole of the present invention;

[0023] Figure 3 It is a structural schematic diagram of the frame, the loading conveyor belt and the unloading conveyor belt of the present invention;

[0024] Figure 4 It is a structural schematic diagram of the positive and negative electrode detection mechanism of the present invention;

[0025] Figure 5 It is a structural schematic diagram of the positive and negative electrode replacement assembly of the present invention;

[0026] Figure 6 It is a schematic structural diagram of the ejector rod and its partial cross-section of the present invention;

[0027] Figure 7 It is a structural schematic diagram of the fixing sleeve of the present invention when looking up at the interior of the fixing sleeve from a first perspective;

[0028] Figure 8 It is a structural schematic diagram of the fixing sleeve of the present invention when looking at the interior from a second perspective from above;

[0029] Fig. 9 It is a structural schematic diagram of the sorting mechanism of the present invention;

[0030] Fig.10 It is a structural schematic diagram of the material conveying mechanism and the quality inspection mechanism of the present invention;

[0031] Fig.11 It is a structural schematic diagram of a part of the quality inspection mechanism of the present invention;

[0032] Reference numerals:

[0033] 1. Frame; 2. Support seat; 3. Loading conveyor belt; 4. Unloading conveyor belt; 5. Positive and negative electrode detection mechanism; 501. Mounting frame 1; 502. Industrial camera; 503. Mounting frame 2; 504. Positive and negative electrode replacement assembly; 5041. Electric push rod 1; 5042. Rotating joint; 5043. Push rod; 5044. Base; 5045. Spring 1; 5046. Guide pin; 5047. Bump; 5048. Fixed sleeve; 5049. Guide groove; 50491. Release section; 50492. Spiral guide section; 50493. Straight groove section; 50494. Compression ramp; 6. Sorting mechanism; 601. Electric push rod 2; 602. Movable frame; 603, guide rod; 604, motor one; 605, incomplete gear; 606, elastic push assembly; 6061, fixed block; 6062, push rod; 6063, spring two; 607, mounting frame three; 7, material conveying mechanism; 701, motor two; 702, rotating shaft; 703, conveying plate; 7031, notch; 8, fixed frame; 9, quality inspection mechanism; 901, motor three; 902, turntable; 903, connecting rod; 904, movable sheet; 905, guide frame; 906, contact; 907, wire; 908, test board; 909, indicator light; 10, center side panel; 11, guide plate; 12, outer baffle. DETAILED DESCRIPTION

[0034] 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.

[0035] Traditional lithium battery testing mainly relies on manual operation and semi-automatic equipment, which has problems such as low efficiency, poor accuracy, and difficulty in ensuring consistency. In addition, manual testing is easily affected by factors such as operator experience and fatigue, resulting in unstable test results. With the expansion of production scale and the improvement of product performance requirements, traditional testing methods can no longer meet the needs of modern lithium battery production. Therefore, the application of automated testing technology in lithium battery production lines has gradually become an industry trend. Automated testing equipment integrates advanced technologies such as high-precision indicator lights 909, machine vision systems, and intelligent algorithms to achieve rapid and accurate detection of key parameters of lithium batteries (such as voltage, internal resistance, size, appearance defects, etc.).

[0036] Embodiment 1:

[0037] Based on the technical defects of the existing technology of lithium battery misdetection and difficulty in batch detection, please refer to Figure 1-Figure 11The automatic detection equipment based on the lithium battery production line provided by the present invention can use the positive and negative pole swapping component 504 to reverse the lithium battery, so that the lithium battery can be smoothly detected in the subsequent circulation, eliminating the problem of false detection of lithium batteries, and can detect multiple lithium batteries at one time, greatly improving the detection efficiency of lithium batteries, including a frame 1, two support seats 2 are installed on the frame 1, and the two support seats 2 are respectively connected to the loading conveyor belt 3 and the unloading conveyor belt 4, the loading conveyor belt 3 and the unloading conveyor belt 4 are both two and symmetrically arranged, a positive and negative pole detection mechanism 5 is installed at a position close to the loading conveyor belt 3 on the frame 1, and a sorting mechanism 6 is installed at a position close to the unloading conveyor belt 4, a material conveying mechanism 7 is provided between the loading conveyor belt 3 and the unloading conveyor belt 4, and a material conveying mechanism 7 is provided above the material conveying mechanism 7 and is fixed to the frame 1 A fixing frame 8 is provided, and a quality inspection mechanism 9 is installed on the top of the fixing frame 8; when in use, the feeding conveyor belt 3 feeds the lithium battery into the inspection equipment, and firstly, under the action of the positive and negative electrode inspection mechanism 5, the appearance defects of the positive and negative electrodes of the lithium battery and whether there is a problem of opposite positions of the positive and negative electrodes are detected. If so, the lithium battery is reversed so that the positive and negative electrodes can be oriented in the same direction, and then the lithium battery enters the material conveying mechanism 7. As the material conveying mechanism 7 runs, multiple lithium batteries are moved to the inspection station, and the quality inspection mechanism 9 simultaneously inspects the multiple lithium batteries. After the inspection, the lithium battery continues to move with the material conveying mechanism 7 and moves to the unloading conveyor belt 4, and then, under the action of the sorting mechanism 6, the unqualified lithium batteries are removed, and the remaining qualified lithium batteries continue to enter the subsequent processing steps with the unloading conveyor belt 4.

[0038] In lithium battery testing, the appearance defect detection of positive and negative electrodes is also one of the necessary steps. During the test, because the positive and negative electrodes of some lithium batteries are in opposite positions before entering the testing equipment, in the subsequent test, the contact 906 needs to contact the positive and negative electrodes of the lithium battery for quality inspection. However, the reversed positive and negative electrodes will cause the lithium battery to fail to be tested and will be rejected as a defective product, resulting in the problem of false detection. For this reason, please refer to Figure 4 The positive and negative electrode detection mechanism 5 includes a mounting frame 1 501 and a mounting frame 2 503 fixed on the frame 1. The mounting frame 1 501 is "U"-shaped and has multiple equidistantly distributed industrial cameras 502 installed at both ends. The inner side of the mounting frame 2 503 is installed with multiple equidistantly distributed positive and negative electrode replacement components 504. The top of the positive and negative electrode replacement component 504 passes through the frame 1 and the mounting frame 1 501 and is located in the gap between the two feeding conveyor belts 3; the industrial camera 502 can be used to capture the positive and negative electrode images of the lithium battery, so as to detect whether the positive and negative electrodes have appearance defects, and at the same time, the directions of the positive and negative electrodes of the lithium battery can be distinguished. When the positive and negative electrodes of the lithium battery are in opposite positions, the positive and negative electrode replacement component 504 can be used to reverse the lithium battery, so that the lithium battery can be successfully detected in the subsequent circulation, eliminating the problem of false detection of lithium batteries.

[0039] To facilitate the reversal of the positive and negative poles of the lithium battery, please refer to Figure 5-Figure 8 The positive and negative pole exchange assembly 504 includes an electric push rod 5041 installed at the bottom of the second mounting frame 503, and a push rod 5043 is movably connected to the telescopic shaft of the electric push rod 5041 through a rotating joint 5042. A base 5044 with a concave surface is fixed on the top of the push rod 5043. A fixing sleeve 5048 fixed to the second mounting frame 503 is sleeved on the outer wall of the push rod 5043. Two guide members located inside the fixing sleeve 5048 are also embedded on the outer wall of the push rod 5043, and the two guide members are symmetrically arranged. A guide groove 5046 used in conjunction with the guide member is provided on the inner wall of the fixing sleeve 5048. 049; further, the guide member includes a spring 5045 embedded in the top rod 5043, one end of the spring 5045 is connected to a guide pin 5046 slidably arranged on the outer wall of the top rod 5043, and a protrusion 5047 is provided on the outer wall of the guide pin 5046; further, the guide groove 5049 is composed of a release section 50491, a spiral guide section 50492 and a straight groove section 50493, the release section 50491 and the straight groove section 50493 are respectively connected to the bottom and the top of the spiral guide section 50492, and the bottom of the straight groove section 50493 is provided with a compression slope 50494; positive and negative pole exchange group The operating principle of the component 504 is as follows: the electric push rod 5041 is used to work and drive the push rod 5043 to move upward, and the push rod 5043 pushes the lithium battery upward through the base 5044. At the same time, under the action of the guide member, one of the guide pins 5046 is in the guide groove 5049 under the elastic force of the spring 5045. As the push rod 5043 moves upward, the guide pin 5046 slides along the guide groove 5049. Since the guide groove 5049 has a spiral guide section 50492, the guide pin 5046 can drive the push rod 5043 to rotate while moving upward. When the movement reaches the highest point, the guide pin 5046 also moves to the highest position of the guide slot 5049, and then the push rod 5043 moves downward as the electric push rod 1 5041 is reset, and the guide pin 5046 enters the straight slot section 50493 of the guide slot 5049. Since the bottom of the straight slot section 50493 has a compression inclined surface 50494, the guide pin 5046 moves inward under the action of the compression inclined surface 50494 and compresses the spring 1 5045, and the other guide pin 5046 can just move to the release section 50491 of the guide slot 5049, thus forming a complete movement process.

[0040] Since the lithium batteries will be uneven when moving with the loading conveyor belt 3, two symmetrically arranged center side plates 10 are fixed on one side of the positive and negative electrode detection mechanism 5; the lithium batteries are gathered to the middle position through the center side plates 10 to ensure that the distance between the subsequent industrial camera 502 and the positive and negative electrodes of the lithium batteries is at a suitable position, so as to photograph the positive and negative electrodes of the lithium batteries.

[0041] Embodiment 2:

[0042] The existing detection device can only detect a single lithium battery at a time, and it is still unable to keep up with the speed of the production line when facing mass production. For this reason, please refer to Fig.10 The material conveying mechanism 7 includes a second motor 701 installed on the frame 1, a rotating shaft 702 is fixedly arranged on the output shaft of the second motor 701, the rotating shaft 702 is rotatably connected to the frame 1, two conveying discs 703 are fixedly arranged on the rotating shaft 702, a plurality of notches 7031 are opened on the conveying disc 703, and an outer baffle 12 fixedly connected to the bottom of the fixed frame 8 is arranged above the two conveying discs 703; the second motor 701 can specifically adopt a stepping motor, so that the rotation angle of the conveying disc 703 can be conveniently controlled, and at the same time, under the action of the notch 7031, a plurality of lithium batteries can enter the notch 7031 each time, and then be moved to the detection station with the movement of the conveying disc 703, so as to realize the synchronous detection of a plurality of lithium batteries; and the design of the outer baffle 12 can prevent the lithium battery from being separated from the notch 7031 of the conveying disc 703 due to the action of centrifugal force when the conveying disc 703 rotates, thereby improving the safety of the lithium battery moved by the conveying disc 703.

[0043] Furthermore, when all lithium batteries in the slots 7031 have defects in appearance (5 are shown in the figure), the conveying plate 703 rotates clockwise and causes the lithium batteries to drop directly from the lower position, achieving rapid unloading to improve the detection efficiency of the lithium batteries.

[0044] Embodiment three:

[0045] When testing lithium batteries, it is necessary to test the capacity, internal resistance and various performance of lithium batteries. For this purpose, please refer to Figure 10-11The quality inspection mechanism 9 includes a motor 3 901 mounted on the top of the fixed frame 8, a turntable 902 is fixed on the output shaft of the motor 3 901, the bottom of the turntable 902 is hinged to the top of two movable pieces 904 through two connecting rods 903, the two movable pieces 904 are movably connected to the bottom of the fixed frame 8 through a guide frame 905, and a plurality of contacts 906 are provided on the movable piece 904, and the plurality of contacts 906 are connected to one end of a test board 908 through a wire 907, and the test board 908 is mounted on the bottom of the fixed frame 8. The test board 908 is provided with an indicator light 909; the motor 901 can drive the turntable 902 to rotate, and the turntable 902 drives the movable sheet 904 to move through the connecting rod 903, and the movable sheet 904 drives the contact 906 to contact the positive and negative electrodes of the lithium battery, so that under the action of the wire 907, the test board 908 is conductively connected with the lithium battery to realize the performance test of multiple lithium batteries, and under the action of the indicator light 909, if the light is off, it means that the lithium battery test is unqualified, and if the green light is on, it means that the lithium battery test is qualified.

[0046] Embodiment 4:

[0047] After the lithium battery test is completed, unqualified lithium batteries and qualified lithium batteries will continue to flow to the subsequent processing steps, which will cause the subsequent equipment and unqualified lithium batteries to undergo redundant processing. For this reason, it is necessary to remove the unqualified lithium batteries after the test. Please refer to Fig. 9The sorting mechanism 6 includes an electric push rod 2 601 installed on the side wall of the frame 1, a movable frame 602 is fixed on the telescopic shaft of the electric push rod 2 601, a motor 1 604 is installed on the top of the movable frame 602, an incomplete gear 605 is fixed on the output shaft of the motor 1 604, and a plurality of elastic pusher assemblies 606 distributed in parallel are arranged below the incomplete gear 605, and the plurality of elastic pusher assemblies 606 are all installed on a mounting frame 3 607, the mounting frame 3 607 is fixedly connected to the side wall of the frame 1, and a guide rod 603 slidably connected to the movable frame 602 is also fixed on the mounting frame 3 607; further, the elastic pusher assembly 606 includes a fixed block 6061 fixedly connected to the mounting frame 3 607, a push rod 6062 is sleeved on the fixed block 6061, a tooth groove is provided on the surface of the push rod 6062 and intermittently meshes with the incomplete gear 605, and a guide rod 603 is sleeved on the outer wall of the push rod 6062 A second spring 6063 connected to a fixed block 6061 is provided; a plurality of elastic pusher assemblies 606 correspond to the positions and quantities of a plurality of lithium batteries. When there are unqualified lithium batteries, the second electric push rod 601 is used to drive the movable frame 602 to move, and the movable frame 602 drives the first motor 604 and the incomplete gear 605 to move, so that the incomplete gear 605 moves to the top of the elastic pusher assembly 606 corresponding to the unqualified lithium battery. At this time, the first motor 604 works and drives the incomplete gear 605 to rotate, and the incomplete gear 605 engages with the push rod 6062 and moves the push rod 6062. At this time, the second spring 6063 is compressed. When the incomplete gear 605 is disengaged from the meshing with the push rod 6062, under the elastic force of the second spring 6063, the push rod 6062 actively collides with the unqualified lithium battery and makes it fall to the other side, thereby realizing the removal of the unqualified lithium batteries.

[0048] Furthermore, in order to facilitate the collection of unqualified lithium batteries, a guide plate 11 installed on the frame 1 is provided on the side of the unloading conveyor belt 4 away from the sorting mechanism 6, and the unqualified lithium batteries are made to slide into the collection basket through the guide plate 11 to complete the collection work.

[0049] It should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automated testing device based on a lithium battery production line, comprising a frame (1), characterized in that: Two support seats (2) are installed on the frame (1), and the two support seats (2) are respectively connected to a loading conveyor belt (3) and a unloading conveyor belt (4) in a transmission manner. The loading conveyor belt (3) and the unloading conveyor belt (4) are both two and are symmetrically arranged. A positive and negative electrode detection mechanism (5) is installed at a position close to the loading conveyor belt (3) on the frame (1), and a sorting mechanism (6) is installed at a position close to the unloading conveyor belt (4). A material conveying mechanism (7) is provided between the loading conveyor belt (3) and the unloading conveyor belt (4). A fixed frame (8) fixed to the frame (1) is provided above the material conveying mechanism (7), and a quality detection mechanism (9) is installed on the top of the fixed frame (8); The positive and negative electrode detection mechanism (5) comprises a mounting frame 1 (501) and a mounting frame 2 (503) fixedly connected to the frame (1); the mounting frame 1 (501) is in a "U" shape and has a plurality of equally spaced industrial cameras (502) mounted on both ends thereof; a plurality of equally spaced positive and negative electrode exchange assemblies (504) are mounted on the inner side of the mounting frame 2 (503); the top of the positive and negative electrode exchange assemblies (504) penetrates the frame (1) and the mounting frame 1 (501) and is located in the gap between the two feeding conveyor belts (3).

2. The automated testing equipment based on a lithium battery production line according to claim 1, characterized in that: The positive and negative pole exchange assembly (504) comprises an electric push rod (5041) mounted at the bottom of the second mounting frame (503); a push rod (5043) is movably connected to the telescopic shaft of the electric push rod (5041) via a rotating joint (5042); a base (5044) with a concave surface is fixedly provided on the top of the push rod (5043); a fixing sleeve (5048) fixedly connected to the second mounting frame (503) is sleeved on the outer wall of the push rod (5043); two guide members located inside the fixing sleeve (5048) are also embedded on the outer wall of the push rod (5043); the two guide members are symmetrically arranged; a guide groove (5049) used in conjunction with the guide member is provided on the inner wall of the fixing sleeve (5048).

3. The automated testing equipment based on a lithium battery production line according to claim 2, characterized in that: The guide member comprises a spring 1 (5045) embedded in the top rod (5043), one end of the spring 1 (5045) is connected to a guide pin (5046) slidably arranged on the outer wall of the top rod (5043), and a protrusion (5047) is arranged on the outer wall of the guide pin (5046).

4. The automated testing equipment based on a lithium battery production line according to claim 2, characterized in that: The guide groove (5049) is composed of a release section (50491), a spiral guide section (50492) and a straight groove section (50493). The release section (50491) and the straight groove section (50493) are respectively connected to the bottom and top of the spiral guide section (50492). The bottom of the straight groove section (50493) is provided with a compression slope (50494).

5. The automated testing equipment based on a lithium battery production line according to claim 1, characterized in that: The sorting mechanism (6) comprises an electric push rod 2 (601) mounted on the side wall of the frame (1); a movable frame (602) is fixedly arranged on the telescopic shaft of the electric push rod 2 (601); a motor 1 (604) is mounted on the top of the movable frame (602); an incomplete gear (605) is fixedly arranged on the output shaft of the motor 1 (604); a plurality of elastic pusher assemblies (606) arranged in parallel are arranged below the incomplete gear (605); the plurality of elastic pusher assemblies (606) are all mounted on a mounting frame 3 (607); the mounting frame 3 (607) is fixedly connected to the side wall of the frame (1); and a guide rod (603) slidably connected to the movable frame (602) is also fixedly arranged on the mounting frame 3 (607).

6. The automated testing equipment based on a lithium battery production line according to claim 5, characterized in that: The elastic push assembly (606) includes a fixed block (6061) fixedly connected to a mounting frame (607), a push rod (6062) is sleeved on the fixed block (6061), a surface of the push rod (6062) is provided with a tooth groove and intermittently meshes with the incomplete gear (605), and a spring (6063) connected to the fixed block (6061) is sleeved on the outer wall of the push rod (6062).

7. The automated testing equipment based on a lithium battery production line according to claim 1, characterized in that: The material conveying mechanism (7) comprises a second motor (701) mounted on a frame (1); a rotating shaft (702) is fixedly arranged on the output shaft of the second motor (701); the rotating shaft (702) is rotatably connected to the frame (1); two conveying plates (703) are fixedly arranged on the rotating shaft (702); a plurality of notches (7031) are formed on the conveying plates (703); an outer baffle (12) fixedly connected to the bottom of a fixed frame (8) is arranged above the two conveying plates (703).

8. The automated testing equipment based on a lithium battery production line according to claim 1, characterized in that: The quality inspection mechanism (9) comprises a motor three (901) mounted on the top of a fixed frame (8); a rotating disk (902) is fixedly arranged on the output shaft of the motor three (901); the bottom of the rotating disk (902) is respectively hinged to the tops of two movable plates (904) through two connecting rods (903); the two movable plates (904) are movably connected to the bottom of the fixed frame (8) through a guide frame (905); a plurality of contacts (906) are arranged on the movable plate (904); the plurality of contacts (906) are connected to one end of a test board (908) through a wire (907); the test board (908) is mounted on the bottom of the fixed frame (8); and an indicator light (909) is installed on the test board (908).

9. The automated testing equipment based on a lithium battery production line according to claim 1, characterized in that: Two symmetrically arranged central side plates (10) are fixedly provided on one side of the positive and negative electrode detection mechanism (5).

10. The automated testing equipment based on a lithium battery production line according to claim 1, characterized in that: A material guide plate (11) mounted on the frame (1) is provided on the side of the unloading conveyor belt (4) away from the sorting mechanism (6).

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