Cylindrical battery surface detection light source and detection method thereof

Abstract

The invention relates to the technical field of cylindrical battery detection, in particular to a cylindrical battery surface detection light source and a detection method thereof.The cylindrical battery surface detection light source comprises a detection table, a heat dissipation shell is installed on the top face of the detection table, a light source box is installed on the heat dissipation shell, a top box is arranged on the light source box, and a lens body and a CCD camera body are installed above the top box; light source equipment is mounted on the top box, and protective glass is mounted on the top surface of the top box; the semi-transparent and semi-reflective lens is installed in the top box, the installation light equalizing plate is installed in the top box and installed in front of the semi-transparent and semi-reflective lens, the fixing support is installed in the heat dissipation shell, the second light equalizing plate bodies are installed on the top face of the fixing support, and the number of the second light equalizing plate bodies is two. The mounting positions of the two groups of second light equalizing plate bodies are mutually symmetrical, a groove is formed in the inner side wall of the detection table, and a first light equalizing plate body is mounted in the groove. The method has the effect of improving the accuracy of the detection result of the surface of the cylindrical battery.

Description

Technical Field

[0001] The present application relates to the technical field of cylindrical battery detection, and in particular to a cylindrical battery surface detection light source and a detection method thereof. Background Art

[0002] Cylindrical batteries are a type of battery with high capacity, long cycle life, and a wide range of ambient temperature. They are widely used in solar lamps, lawn lamps, backpack power, power tools, etc.

[0003] Cylindrical batteries need to undergo appearance inspection after leaving the factory. In the early days, operators conducted inspections on the assembly line to check the appearance of the batteries. However, the labor efficiency was low, and it would require a large labor cost to improve the efficiency. With the development of visual inspection technology, the application of industrial vision is increasing, and visual inspection technology is gradually being used in battery inspection to replace manual inspection. Its efficiency and cost are much lower than that of manual inspection.

[0004] Most of the existing light sources used for visual inspection are planar light sources. Since the surface of cylindrical batteries has a certain curvature, the shooting range during inspection is small, resulting in incomplete inspection of cylindrical batteries. The surface of cylindrical batteries has a large curvature, and conventional planar light sources cannot fully inspect them, so there is room for improvement. Summary of the invention

[0005] In order to improve the accuracy of the detection results of the cylindrical battery surface, the present application provides a cylindrical battery surface detection light source and a detection method thereof.

[0006] The cylindrical battery surface detection light source and detection method provided in this application adopt the following technical solutions: On the one hand, a cylindrical battery surface detection light source and a detection method thereof include a detection platform, a heat dissipation shell is installed on the top surface of the detection platform, a light source box is installed on the front surface of the heat dissipation shell, a top box is arranged on the upper surface of the light source box, a lens body is installed above the top box, a CCD camera body is installed on the top surface of the lens body, a light source device is installed on the left surface of the top box, and a protective glass is installed on the top surface of the top box; A semi-transparent and semi-reflective lens is installed inside a top box, a light-equalizing plate is installed inside the top box, and the light-equalizing plate is installed in front of the semi-transparent and semi-reflective lens, a fixed bracket is installed inside the heat dissipation shell, a second light-equalizing plate body is installed on the top surface of the fixed bracket, two groups of the second light-equalizing plate bodies are provided, and the installation positions of the two groups of the second light-equalizing plate bodies are symmetrical to each other, and a groove is opened on the inner side wall of the detection table, and a first light-equalizing plate body is installed inside the groove.

[0007] Optionally, the first light diffuser body is fixedly installed inside the groove, a first light diffuser opening is opened inside the first light diffuser body, a light source PCB opening is opened inside the fixing bracket, and a shell opening is opened inside the heat dissipation shell.

[0008] By adopting the above technical scheme, light source is emitted simultaneously through the light source device and the light source box, and then the light will first pass through the first light averaging plate body and the second light averaging plate body, and the light emitted by the light source device will also pass through the installed light averaging plate, and then the light source will be reflected and irradiated on the semi-transparent and semi-reflective lens, and then the light will continue to reflect and pass through the inside of the opening of the outer shell to illuminate the top of the detection battery body. Since a protective glass is installed on the top of the coaxial light source, and a lens body and a CCD camera body are arranged above the protective glass, the detection battery body below can be observed through the semi-transparent and semi-reflective lens through the CCD camera body, so that the detection battery body can be visually inspected quickly.

[0009] Optionally, the size of the opening of the first light-diffusing plate is smaller than the size of the opening of the light source PCB, and the size of the opening of the light source PCB is smaller than the size of the opening of the housing.

[0010] By adopting the above technical solution, problems such as light source obstruction during the detection process can be solved.

[0011] Optionally, a detection battery body is provided on the surface of the detection table, and a conveying rack is installed on the left surface of the detection table.

[0012] Optionally, a conveyor belt is installed inside the conveyor frame, and a first mounting block and a second mounting block are installed on the top surface of the conveyor frame in sequence from front to back.

[0013] By adopting the above technical solution, the detection battery body can be stably conveyed by the conveyor belt, and then the first mounting block and the second mounting block can be stably supported by the conveyor frame.

[0014] Optionally, a first telescopic rod is installed on the right surface of the first mounting block, and a second connecting block is installed on the right surface of the first telescopic rod.

[0015] By adopting the above technical solution, the second connecting block is connected through the first telescopic rod, and the first telescopic rod can drive the second connecting block to perform telescopic operation.

[0016] Optionally, a second electric push rod is installed on the back side of the second connecting block, and a second supporting arc block is installed on the back side of the second electric push rod.

[0017] By adopting the above technical solution, the second supporting arc block can be driven to perform telescopic operation by the second electric push rod.

[0018] Optionally, a second telescopic rod is installed on the right surface of the second mounting block, and a first connecting block is installed on the right surface of the second telescopic rod.

[0019] By adopting the above technical solution, the first supporting arc block is fixedly connected through the first electric push rod, and can drive the first supporting arc block to perform telescopic operation.

[0020] Optionally, a first electric push rod is installed on the front surface of the first connecting block, and a first supporting arc block is installed on the front surface of the first electric push rod. The first supporting arc block has the same structure as the second supporting arc block, and the installation positions are symmetrical to each other.

[0021] By adopting the above technical solution, the first supporting arc block and the second supporting arc block can respectively abut against the front and rear surfaces of the detection battery body, so as to clamp and transport the detection battery body.

[0022] On the other hand, the cylindrical battery surface detection method comprises the following steps: S1. Place the battery body for testing; S2, start the coaxial light source and the arc opening backlight light source at the same time, so that the light emitted by the light source is evenly irradiated to the surface of the detection battery body; S3, the light emitted by the light source will be irradiated onto the semi-transparent and semi-reflective lens through the light averaging plate, and then reflected downward to illuminate the top of the detection battery body; S4, the CCD camera body observes the detection battery body below through the semi-transparent and semi-reflective lens for detection; S5, complete the test; S6. After the test is completed, the tested battery body is transported and the above test steps are repeated for testing.

[0023] In summary, the present application includes at least one of the following beneficial technical effects: 1. When in use, first place the test battery body on the surface of the test bench, and the test battery body is also placed directly below the opening of the shell, and then the light source is emitted simultaneously through the set light source device and the light source box, and then the light will first pass through the first light averaging plate body and the second light averaging plate body, and the light emitted by the light source device will also pass through the installed light averaging plate, and then the light source will be reflected and irradiated on the semi-transparent and semi-reflective lens, and then the light will continue to reflect and pass through the inside of the opening of the shell to illuminate the top of the test battery body. Since a protective glass is installed on the top of the coaxial light source, and a lens body and a CCD camera body are arranged above the protective glass, the test battery body below can be observed through the semi-transparent and semi-reflective lens through the CCD camera body, so that the test battery body can be quickly visually inspected, and the overall inspection effect is relatively convenient. This design helps to improve the accuracy and quality of cylindrical battery shooting, comprehensively shoot cylindrical batteries, and improve the accuracy of the test results; 2. During use, when the detection of the detection battery body on the surface of the heat dissipation shell is completed, the first telescopic rod and the second telescopic rod are started at the same time, and the first telescopic rod and the second telescopic rod will respectively drive the second connecting block and the first connecting block to move to the right, and the second connecting block and the first connecting block will slowly approach the front and rear surfaces of the detection battery body. When the second connecting block and the first connecting block are respectively moved to the vicinity of the front and rear surfaces of the detection battery body, the first electric push rod and the second electric push rod are started at the same time, and then the first electric push rod will drive the first supporting arc block to move forward, and the second electric push rod will drive the second supporting arc block to move to the back, and the first supporting arc block will contact the back and bottom of the detection battery body, and the second supporting arc block will contact the front and bottom of the detection battery body. The design of the first supporting arc block and the second supporting arc block can support the front and rear surfaces and the bottom of the detection battery body, and the overall supporting effect is relatively stable. When the position of the detection battery body is offset, the design of the first supporting arc block and the second supporting arc block can straighten the detection battery body, which is convenient for positioning and retracting the detection battery body; 3. Start the first telescopic rod and the second telescopic rod, the first telescopic rod and the second telescopic rod will drive the second connecting block and the first connecting block to move to the left, and when the detection battery body support is moved to the top of the conveyor belt, the second electric push rod and the first electric push rod will shrink respectively. At this time, the second support arc block and the first support arc block will be away from the surface of the detection battery body, so that the detection battery body will fall onto the surface of the conveyor belt, and then the detection battery body will be conveyed by the conveyor belt. This design can clamp and convey the detection battery body after the detection of the detection battery body, which can improve the detection efficiency of the detection battery body and reflect the functionality of the design. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of a cylindrical battery surface detection light source in an embodiment of the present application.

[0025] Figure 2 It is a schematic diagram of the structure of the heat dissipation housing and the top box of the embodiment of the present application.

[0026] Figure 3 It is a schematic diagram of the structure of the semi-transparent and semi-reflective lens and the installed light-diffusing plate in the embodiment of the present application.

[0027] Figure 4 It is a schematic diagram of the structure of the second light-diffusing plate body of the embodiment of the present application.

[0028] Figure 5 It is a structural schematic diagram of the first light-diffusing plate body of the embodiment of the present application.

[0029] Figure 6 It is a schematic diagram of the disassembled structure of the heat dissipation housing according to an embodiment of the present application.

[0030] Figure 7 It is a structural schematic diagram of the shell opening, the light source PCB opening and the first light-diffusing plate opening in the embodiment of the present application.

[0031] Figure 8 It is a schematic diagram of the structure of the conveyor frame and conveyor belt according to an embodiment of the present application.

[0032] Explanation of the reference numerals: 1. test bench; 2. heat dissipation housing; 3. light source box; 4. top box; 5. lens body; 6. CCD camera body; 7. light source equipment; 8. protective glass; 9. semi-transparent and semi-reflective lens; 10. installation of light-diffusing plate; 11. fixing bracket; 12. second light-diffusing plate body; 13. groove; 14. first light-diffusing plate body; 15. first light-diffusing plate opening; 16. light source PCB opening; 17. housing opening; 18. test battery body; 19. conveyor rack; 20. conveyor belt; 21. first mounting block; 22. first telescopic rod; 23. second mounting block; 24. second telescopic rod; 25. first connecting block; 26. first electric push rod; 27. first supporting arc block; 28. second connecting block; 29. ​​second electric push rod; 30. second supporting arc block. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-8 This application is described in further detail.

[0034] The present application embodiment discloses a cylindrical battery surface detection light source. Figure 1 The cylindrical battery surface detection light source includes a detection table 1, which is fixedly installed on a work surface and is used to place the product to be detected. A heat dissipation shell 2 is installed on the top surface of the detection table 1, and the heat dissipation shell 2 is arc-shaped. A light source box 3 is installed on the outer peripheral wall of the heat dissipation shell 2, and the light source box 3 is located on the side of the heat dissipation shell 2 near the detection table 1. A top box 4 is arranged above the heat dissipation shell 2, and a lens body 5 is installed above the top box 4, and a CCD camera body 6 is installed on the top surface of the lens body 5. A light source device 7 is installed on the side wall of the top box 4, and the light source device 7 and the light source box 3 are both connected to the light source power supply line.

[0035] Reference Figure 2 and Figure 3 The top surface of the top box 4 is provided with a protective glass 8, which is integrally installed on the upper surface of the top box 4. A semi-transparent and semi-reflective lens 9 is installed inside the top box 4, and a light averaging plate 10 is installed inside the top box 4, which is installed in front of the semi-transparent and semi-reflective lens 9.

[0036] Reference Figure 4The heat dissipation housing 2 is provided with a first light-diffusing plate body 14 and a second light-diffusing plate body 12. The first light-diffusing plate body 14 and the second light-diffusing plate body 12 are at the same distance from the central axis of the heat dissipation housing 2.

[0037] Reference Figure 5 and Figure 6 A fixing bracket 11 is installed inside the heat dissipation housing 2, and a second light-diffusing plate body 12 is installed on the top surface of the fixing bracket 11. Two groups of second light-diffusing plate bodies 12 are provided, and the installation positions of the two groups of second light-diffusing plate bodies 12 are symmetrical to each other. A groove 13 is opened on the inner side wall of the detection platform 1, and a first light-diffusing plate body 14 is installed inside the groove 13.

[0038] Reference Figure 7 The first diffuser body 14 has a first diffuser opening 15, the fixing bracket 11 has a light source PCB opening 16, and the heat dissipation housing 2 has a housing opening 17. First, place the test battery body 18 on the surface of the test bench 1, and the test battery body 18 is also placed directly below the shell opening 17, and then the light source is emitted simultaneously through the set light source device 7 and the light source box 3. The light will first pass through the first light averaging plate body 14 and the second light averaging plate body 12, and the light emitted by the light source device 7 will also pass through the installed light averaging plate 10, and then the light source will be reflected and irradiated on the semi-transparent and semi-reflective lens 9, and then the light will continue to reflect and pass through the inside of the shell opening 17 to illuminate the top of the test battery body 18. Since a protective glass 8 is installed on the top of the coaxial light source, and a lens body 5 and a CCD camera body 6 are arranged above the protective glass 8, the test battery body 18 below can be observed through the semi-transparent and semi-reflective lens 9 through the CCD camera body 6, so that the test battery body 18 can be quickly visually inspected, and the overall inspection effect is relatively convenient. This design helps to improve the accuracy and quality of cylindrical battery photography, comprehensively photograph cylindrical batteries, and improve the accuracy of the test results.

[0039] Reference Figure 5 and Figure 7 , the size of the first light-diffusing plate opening 15 is smaller than the light source PCB opening 16, and the size of the light source PCB opening 16 is smaller than the shell opening 17, in order to avoid the shell structure and PCB blocking the coaxial light. Since the surface of the detection battery body 18 is smooth and reflective, if the light source PCB opening 16 is smaller than the first light-diffusing plate opening 15, there will be a problem of lamp post projection; if the shell opening 17 is smaller than the first light-diffusing plate opening 15, there will be a dark area projected on the shell side wall; if the shell opening 17 is smaller than the light source PCB opening 16, it will cause the heat dissipation shell 2 to block the coaxial light, so that the first light-diffusing plate body 14 will have a dark area on the edge. This design can solve the above problems.

[0040] Reference Figure 1 and Figure 8 A conveyor frame 19 is installed on the left surface of the test platform 1, and a conveyor belt 20 is installed inside the conveyor frame 19. The conveyor belt 20 is composed of two sets of rotating shafts and a set of driving motors. The driving motor drives the rotating shafts to rotate, thereby driving the conveyor belt 20 to rotate, so that the conveyor belt 20 can transport the test battery body 18 on the surface.

[0041] The top surface of the conveyor frame 19 is sequentially mounted with a first mounting block 21 and a second mounting block 23 from front to back, a first telescopic rod 22 is mounted on the right side surface of the first mounting block 21, a second connecting block 28 is mounted on the right side surface of the first telescopic rod 22, a second electric push rod 29 is mounted on the back side of the second connecting block 28, and a second supporting arc block 30 is mounted on the back side of the second electric push rod 29. A second telescopic rod 24 is mounted on the right side surface of the second mounting block 23, a first connecting block 25 is mounted on the right side surface of the second telescopic rod 24, a first electric push rod 26 is mounted on the front surface of the first connecting block 25, and a first supporting arc block 27 is mounted on the front surface of the first electric push rod 26. The first supporting arc block 27 has the same structure as the second supporting arc block 30, and the installation positions are symmetrical to each other.

[0042] After a battery test is completed, the first telescopic rod 22 and the second telescopic rod 24 are started at the same time. At this time, the first telescopic rod 22 and the second telescopic rod 24 will respectively drive the second connection block 28 and the first connection block 25 to move to the right. At this time, the second connection block 28 and the first connection block 25 will slowly approach the front and rear surfaces of the test battery body 18. When the second connection block 28 and the first connection block 25 move to the vicinity of the front and rear surfaces of the test battery body 18, the first electric push rod 26 and the second electric push rod 29 are started at the same time, and then the first electric push rod 26 drives the first support arc block 27 to move forward. At this time, the second electric push rod 29 drives the second support arc block 30 to move to the back. At this time, the first support arc block 27 will contact the back and bottom of the test battery body 18, and similarly, the second support arc block 30 will contact the front and bottom of the test battery body 18. The design of the first support arc block 27 and the second support arc block 30 can support the front and rear surfaces and the bottom of the test battery body 18, and the overall support effect is relatively stable. When the position of the detection battery body 18 is offset, the design of the first supporting arc block 27 and the second supporting arc block 30 can straighten the detection battery body 18, so as to facilitate the positioning and retraction of the detection battery body 18.

[0043] Start the first telescopic rod 22 and the second telescopic rod 24, the first telescopic rod 22 and the second telescopic rod 24 will drive the second connecting block 28 and the first connecting block 25 to move to the left, and the conveyor belt 20 will move the detection battery body 18 between the first telescopic rod 22 and the second telescopic rod 24. At this time, the second electric push rod 29 and the first electric push rod 26 will shrink respectively, and the second supporting arc block 30 and the first supporting arc block 27 will be away from the surface of the detection battery body 18, so that the detection battery body 18 will fall on the surface of the conveyor belt 20, and then the detection battery body 18 will be conveyed by the conveyor belt 20. The present application can clamp and convey the detection battery body 18 after the detection of the detection battery body 18, which can improve the detection efficiency of the detection battery body 18.

[0044] The embodiments of the present application also disclose a cylindrical battery surface detection method using the cylindrical battery surface detection light source.

[0045] S1. The operator places the test battery body 18 on the test table 1 and ensures that the test battery body 18 is placed directly below the shell opening 17; S2, start the coaxial light source and the arc opening backlight light source at the same time, so that the light emitted by the light source is evenly irradiated to the surface of the detection battery body 18; S3, start the light source device 7 and the light source box 3, and the light is evenly irradiated on the semi-transparent and semi-reflective lens 9 through the combined action of the first light averaging plate body 14, the second light averaging plate body 12 and the installation light averaging plate 10, and then reflected to the bottom to illuminate the top of the detection battery body 18; S4, the CCD camera body 6 observes the detection battery body 18 below through the semi-transparent and semi-reflective lens 9 to perform detection; S5, the CCD camera body 6 transmits the detection signal to the PLC controller to complete the detection; S6. After the detection is completed, the PLC controller controls the first telescopic rod 22 and the second telescopic rod 24 to start at the same time, and the first telescopic rod 22 and the second telescopic rod 24 drive the second connecting block 28 and the first connecting block 25 to move to the side of the detection battery body 18; at this time, the first electric push rod 26 and the second electric push rod 29 are started at the same time, and the first electric push rod 26 and the second electric push rod 29 drive the first supporting arc block 27 and the second supporting arc block 30 to approach each other until the first supporting arc block 27 and the second supporting arc block 30 contact the detection battery body 18. The first telescopic rod 22 and the second telescopic rod 24 retract, so that the first supporting arc block 27 and the second supporting arc block 30 clamp the detection battery body 18 and move to the top of the conveyor belt 20. At this time, the second electric push rod 29 and the first electric push rod 26 retract, and the detection battery body 18 falls on the conveyor belt 20, and the conveyor belt 20 conveys the detection battery body 18. Then repeat the above detection steps to perform the detection.

[0046] The implementation principle of the present application is as follows: when the staff uses the device, the device is first connected to an external power supply to provide power support for the device, and the detection battery body 18 is first placed on the surface of the detection table 1, and the detection battery body 18 is also placed directly below the shell opening 17. Then the light source is emitted simultaneously by the light source device 7 and the light source box 3, and then the light first passes through the first light averaging plate body 14 and the second light averaging plate body 12, and the light source will be evenly irradiated on the surface of the detection battery body 18; and the light emitted by the light source device 7 will also pass through the installed light averaging plate 10, and then the light source will be reflected and irradiated on the semi-transparent and semi-reflective lens 9, and then the light continues to reflect and pass through the inside of the shell opening 17 to illuminate the top of the detection battery body 18. Since a protective glass 8 is installed on the top of the coaxial light source, and a lens body 5 and a CCD camera body 6 are arranged above the protective glass 8, the detection battery body 18 below can be observed through the semi-transparent and semi-reflective lens 9 through the CCD camera body 6, so that the detection battery body 18 can be quickly visually inspected.

[0047] When the detection of the detection battery body 18 on the surface of the heat dissipation housing 2 is completed, the first telescopic rod 22 and the second telescopic rod 24 are started at the same time, and the first telescopic rod 22 and the second telescopic rod 24 will respectively drive the second connection block 28 and the first connection block 25 to move to the right, and the second connection block 28 and the first connection block 25 will slowly approach the front and rear surfaces of the detection battery body 18. When the second connection block 28 and the first connection block 25 move to the vicinity of the front and rear surfaces of the detection battery body 18, the first electric push rod 26 and the second electric push rod 29 are started at the same time, and then the first electric push rod 26 will drive the first support arc block 27 to move forward, and the second electric push rod 29 will drive the second support arc block 30 to move to the back. At this time, the first support arc block 27 will contact the back and bottom of the detection battery body 18, and similarly, the second support arc block 30 will contact the front and bottom of the detection battery body 18. Start the first telescopic rod 22 and the second telescopic rod 24, and the first telescopic rod 22 and the second telescopic rod 24 will drive the second connecting block 28 and the first connecting block 25 to move to the left, and when the detection battery body 18 is supported and moved above the conveyor belt 20, the second electric push rod 29 and the first electric push rod 26 will retract respectively, and the second supporting arc block 30 and the first supporting arc block 27 will move away from the surface of the detection battery body 18, so that the detection battery body 18 will fall onto the surface of the conveyor belt 20, and then the detection battery body 18 will be transported by the conveyor belt 20.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A cylindrical battery surface detection light source, comprising a detection platform (1), a heat dissipation shell (2) being installed on the top surface of the detection platform (1), and a light source box (3) being installed on the front surface of the heat dissipation shell (2), characterized in that: A top box (4) is arranged on the upper surface of the light source box (3); a lens body (5) is mounted above the top box (4); a CCD camera body (6) is mounted on the top surface of the lens body (5); a light source device (7) is mounted on the left side surface of the top box (4); and a protective glass (8) is mounted on the top surface of the top box (4); A semi-transparent and semi-reflective lens (9), wherein the semi-transparent and semi-reflective lens (9) is installed inside a top box (4), a light-diffusing plate (10) is installed inside the top box (4), and the light-diffusing plate (10) is installed in front of the semi-transparent and semi-reflective lens (9); a fixed bracket (11) is installed inside the heat dissipation housing (2), and a second light-diffusing plate body (12) is installed on the top surface of the fixed bracket (11); two groups of the second light-diffusing plate bodies (12) are provided, and the installation positions of the two groups of the second light-diffusing plate bodies (12) are symmetrical to each other; a groove (13) is opened on the inner side wall of the detection platform (1), and a first light-diffusing plate body (14) is installed inside the groove (13).

2. The cylindrical battery surface detection light source according to claim 1, characterized in that: A first light diffuser opening (15) is provided inside the first light diffuser body (14), a light source PCB opening (16) is provided inside the fixing bracket (11), and a shell opening (17) is provided inside the heat dissipation shell (2).

3. The cylindrical battery surface detection light source according to claim 2, characterized in that: The size of the first light diffuser opening (15) is smaller than the light source PCB opening (16), and the size of the light source PCB opening (16) is smaller than the housing opening (17).

4. The cylindrical battery surface detection light source according to claim 1, characterized in that: A detection battery body (18) is provided on the surface of the detection platform (1), and a conveying frame (19) is installed on the left side surface of the detection platform (1).

5. The cylindrical battery surface detection light source according to claim 4, characterized in that: A conveyor belt (20) is installed inside the conveyor frame (19), and a first mounting block (21) and a second mounting block (23) are installed in sequence on the top surface of the conveyor frame (19) from front to back.

6. The cylindrical battery surface detection light source according to claim 5, characterized in that: A first telescopic rod (22) is mounted on the right side surface of the first mounting block (21), and a second connecting block (28) is mounted on the right side surface of the first telescopic rod (22).

7. The cylindrical battery surface detection light source according to claim 6, characterized in that: A second electric push rod (29) is mounted on the back of the second connection block (28), and a second supporting arc block (30) is mounted on the back of the second electric push rod (29).

8. The cylindrical battery surface detection light source according to claim 5, characterized in that: A second telescopic rod (24) is mounted on the right side surface of the second mounting block (23), and a first connecting block (25) is mounted on the right side surface of the second telescopic rod (24).

9. The cylindrical battery surface detection light source according to claim 8, characterized in that: A first electric push rod (26) is mounted on the front surface of the first connecting block (25), and a first supporting arc block (27) is mounted on the front surface of the first electric push rod (26); the first supporting arc block (27) and the second supporting arc block (30) have the same structure, and their mounting positions are symmetrical to each other.

10. The method for detecting a cylindrical battery surface light source according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, place the test battery body (18); S2, simultaneously starting the coaxial light source and the arc opening backlight light source, so that the light emitted by the light source is evenly irradiated onto the surface of the detection battery body (18); S3, the light emitted by the light source passes through the light averaging plate and is irradiated onto the semi-transparent and semi-reflective lens (9), and then is reflected downward to illuminate the top of the detection battery body (18); S4, the CCD camera body (6) observes the detection battery body (18) below through the semi-transparent and semi-reflective lens (9) for detection; S5, complete the test; S6. After the test is completed, the tested battery body (18) is transported and the above test steps are repeated for testing.

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