A battery shell spraying quality detection device

Abstract

The application discloses a battery shell spraying quality detection device and belongs to the technical field of battery shell processing. Mainly including a frame body, a detection mechanism with a test box and a mounting table is arranged on the frame body, a shielding mechanism is arranged on the test box, the shielding mechanism is arranged on the test box, the shielding mechanism comprises a second cylinder arranged on the test box, an output end of the second cylinder is provided with a light shielding box, a sealing ring is arranged on the bottom edge of the light shielding box, a lamp strip is arranged at the top end of the inner cavity of the light shielding box, a detection head is arranged in the inner cavity of the light shielding box, and a cleaning assembly is arranged on one side of the test box. The battery shell spraying quality detection device achieves the effect that external environmental light interference is completely isolated during detection, and a constant and closed illumination environment is created for visual detection.

Description

Technical Field

[0001] This application relates to the field of battery casing processing technology, specifically a battery casing coating quality inspection device. Background Technology

[0002] In the large-scale manufacturing of modern electronic products such as lithium-ion batteries, the battery casing not only serves as a structural protector, but its appearance quality is also a crucial indicator of the overall product quality and brand image. Therefore, after molding, battery casings typically undergo surface coating to achieve specific colors, textures, and protective properties. However, during the coating process, due to the influence of raw materials, process parameters, or environmental factors, various defects may appear on the casing surface, such as scratches, dents, particles, orange peel texture, color difference, runs, and missed areas. These defects not only affect the product's aesthetics but may also weaken the coating's protective capabilities. Therefore, 100% inspection of the battery casing coating quality on the production line has become an indispensable process.

[0003] Currently, the industry is gradually transitioning from traditional manual visual inspection to automated inspection based on machine vision for coating quality testing. Automated inspection systems typically use industrial cameras to capture digital images of the workpiece surface, simulating the human eye, and then analyze these images using specific image processing algorithms to identify and locate various defects. This approach offers significant advantages over fatigue-prone and inconsistent manual inspection in terms of efficiency, objectivity, and data traceability.

[0004] For example, patent CN211217594U discloses a product surface quality inspection system based on machine vision technology. This patent involves placing the product to be inspected on a workbench, with a conveyor belt moving the product to a fixed frame. Three-way cameras collect image information of the product and upload it to an image processing unit. The image processing unit analyzes and processes the image to determine whether the product is qualified.

[0005] However, in actual industrial settings, inspection equipment is typically installed in production workshops with complex lighting conditions. The intensity and spectrum of ambient light sources (such as overhead fluorescent lights, nearby equipment indicator lights, and even natural light from windows) can vary due to factors such as production rhythms, weather, and adjustments to workshop layout. These variations directly cause fluctuations in the brightness, contrast, and color reproduction of images captured by the camera. For example, a sudden increase in lateral ambient light may create a high-gloss reflection on a smooth painted surface, masking actual scratches or defects; conversely, a decrease in ambient light may prevent the camera from capturing sufficient detail, misjudging minor color differences as acceptable. This instability in image features caused by the uncertainty of external lighting severely affects the repeatability and reliability of visual inspection systems.

[0006] Therefore, it is necessary to provide a battery casing coating quality inspection device to solve the above problems.

[0007] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Summary of the Invention

[0008] Based on the aforementioned problems in the existing technology, the problem to be solved by this application is to provide a battery casing coating quality inspection device, which solves the problem of unstable inspection results caused by ambient light interference in the visual inspection of battery casing coating quality.

[0009] The technical solution adopted by this application to solve its technical problem is: a battery casing coating quality inspection device, comprising:

[0010] The frame is equipped with a testing mechanism that includes test boxes and mounting platforms;

[0011] A shielding mechanism, disposed on the test box, comprising:

[0012] The second cylinder is located at the upper end of the test box;

[0013] A light-shielding box is disposed at the output end of the second cylinder;

[0014] A sealing ring is provided at the bottom edge of the light-shielding box.

[0015] A light strip, which is disposed at the top of the inner cavity of the light-shielding box;

[0016] The detection head is disposed inside the light-shielding box.

[0017] A cleaning component is disposed on one side of the test box.

[0018] Furthermore, the shape and size of the light-shielding box are closely matched with the mounting platform, and the sealing ring is tightly fitted to the upper surface of the mounting platform.

[0019] Furthermore, the detection head is embedded.

[0020] Furthermore, the cleaning assembly includes a second electric cylinder fixedly mounted on the inner wall of the test box. An extension rod is fixedly connected to the output end of the second electric cylinder, and a fixing frame is fixed to the end of the extension rod. A pipe is provided on the fixing frame.

[0021] Furthermore, the pipeline is connected to an external clean air source via a flexible hose, and multiple nozzles are evenly distributed on the outer side of the pipeline.

[0022] The beneficial effects of this application are: the battery casing coating quality inspection device provided by this application, by setting a light-shielding box driven by a first electric cylinder and having a sealing ring at the bottom, achieves the effect of completely isolating external ambient light interference during inspection, creating a constant and closed lighting environment for visual inspection.

[0023] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description

[0024] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0025] Figure 1 This is an overall schematic diagram of a battery casing coating quality inspection device according to this application;

[0026] Figure 2 This is a cross-sectional schematic diagram of the battery casing coating quality inspection device of this application from another angle;

[0027] Figure 3 for Figure 2 A schematic diagram of A in the middle;

[0028] Figure 4 for Figure 3 Cross-sectional schematic diagram of the central shielding mechanism;

[0029] Figure 5 This is a cross-sectional schematic diagram of the battery casing coating quality inspection device of this application;

[0030] Figure 6 for Figure 5 A schematic diagram of the cleanup component;

[0031] The following are the labeling elements in the figure:

[0032] 1. Frame; 2. Test stand; 3. Detection mechanism; 30. Test box; 31. Guide groove; 32. First cylinder; 33. Slide rail; 34. Slider; 35. Fixing base; 37. Mounting platform; 4. Shielding mechanism; 40. Second cylinder; 41. Light shield box; 42. Sealing ring; 43. Light strip; 44. Detection head; 45. Cleaning assembly; 450. Electric cylinder; 451. Extension rod; 452. Fixing frame; 453. Pipe; 456. Nozzle. Detailed Implementation

[0033] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0034] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0035] like Figures 1-3 As shown, the battery casing coating quality inspection device provided in this application is mainly used in battery automated production lines to perform online automated visual inspection on the surface quality of the battery casing after the coating process is completed. Specifically, the inspection device includes a frame 1 and a test table 2 fixedly installed on the upper end of the frame 1 to facilitate subsequent inspection operations.

[0036] Meanwhile, a testing mechanism 3 is provided on the test bench 2. The testing mechanism 3 includes a test box 30 fixedly installed on the upper end of the test bench 2. An inlet (not shown in the figure) is provided on one side of the test box 30, so that the battery casing to be tested can smoothly enter its interior.

[0037] Furthermore, a guide groove 31 is provided on the test bench 2 in the direction of the inlet. The extension direction of the guide groove 31 is the conveying direction of the workpiece. Two slide rails 33 are fixedly installed parallel to each other on both sides of the guide groove 31. A slider 34 is slidably arranged on each slide rail 33. A fixed seat 35 is fixedly arranged between the sliders 34, thereby forming a stable moving platform.

[0038] Meanwhile, a first cylinder 32 is set at the lower end of the test bench 2. The output end of the first cylinder 32 passes through the guide groove 31 through the connecting block and is fixedly connected to the bottom of the fixed seat 35. Thus, when the first cylinder 32 is activated, it can drive the entire fixed seat 35 together with the slider 34 on it to perform linear reciprocating motion along the slide rail 33.

[0039] Furthermore, an mounting platform 37 is fixedly installed above the fixed base 35. The upper surface of the mounting platform 37 is machined with a groove that matches the shape of the battery casing to be inspected, so as to support and position the battery casing and prevent it from shifting during transportation and inspection.

[0040] In order to achieve high-quality image acquisition under conditions that isolate external light interference, such as Figure 1 and Figures 3-4As shown, a shielding mechanism 4 is provided on the top of the test box 30. The shielding mechanism 4 includes a first electric cylinder 40 fixedly installed on the upper end cover of the test box 30. The output shaft of the first electric cylinder 40 passes through the upper end cover downward and extends into the interior of the test box 30. A light shielding box 41 is fixedly connected to the end of the output shaft of the first electric cylinder 40. The shape and size of the light shielding box 41 are in close fit with the mounting platform 37 below.

[0041] To achieve optimal light-blocking effect, a sealing ring 42 is embedded in the bottom edge of the light-blocking box 41. When the light-blocking box 41 is lowered, the sealing ring 42 will fit tightly against the upper surface of the mounting platform 37, thereby forming a completely sealed detection space that completely isolates external light. Inside this sealed space, a light strip 43 for providing stable illumination and a detection head 44 for image acquisition are integrated and installed at the top of the inner cavity of the light-blocking box 41. The detection head 44 is a small industrial camera or sensor applicable to this application in the prior art, and it is set to be embedded to reduce the dust accumulation surface and facilitate maintenance.

[0042] Before the test begins, the operator or robot places the battery casing to be tested into the groove of the mounting platform 37. Then, the first cylinder 32 is activated to push the fixed seat 35 and the mounting platform 37 to move along the slide rail 33 until the mounting platform 37 carrying the workpiece is completely inside the test box 30 and stops directly below the light shield box 41.

[0043] At this time, the first electric cylinder 40 is activated, driving the light-shielding box 41 to move downward until the sealing ring 42 at its bottom is pressed against the upper surface of the mounting platform 37, forming a light-sealed environment. Then, the light strip 43 is lit up to provide constant and uniform illumination for detection. At the same time, multiple detection heads 44 are activated simultaneously to collect images of the battery casing surface under ideal lighting conditions from all directions and transmit the image data to the background processing system for analysis and grading.

[0044] In order to clean the inside of the light-shielding box 41, such as Figures 5-6 As shown, a cleaning component 45 is provided on one side of the test box 30 for periodically and automatically removing dust and impurities accumulated inside the light shield box 41. The cleaning component 45 includes a second electric cylinder 450 fixedly installed on the inner wall of the test box 30. An extension rod 451 is fixedly connected to the output end of the second electric cylinder 450. A fixing frame 452 is fixed to the end of the extension rod 451, and a pipe 453 is provided on the fixing frame 452. The pipe 453 is connected to an external clean air source through a hose (not shown in the figure), and multiple nozzles 456 are evenly distributed on the outer side of the pipe 453 for guiding high-pressure gas to the surface that needs to be cleaned.

[0045] It should be noted that the cleaning operation is carried out during the inspection interval. When a battery casing is inspected, the first cylinder 32 is activated first to remove the mounting table 37 along with the inspected workpiece from the test box 30.

[0046] Then, the first electric cylinder 40 drives the light shield box 41 to rise to the highest point inside the test box 30, making room for the cleaning operation. Then, the second electric cylinder 450 starts, pushing the entire cleaning assembly forward until the pipe 453 and the nozzle 456 on it are sent to the original position of the mounting platform 37, that is, directly below the light shield box 41.

[0047] At this time, the external air source is turned on, and high-pressure gas enters the pipe 453 through the hose and is sprayed out at high speed from all nozzles 456. With the air source turned on, the first electric cylinder 40 is started again, driving the light shield box 41 to move up and down repeatedly in the high-pressure airflow area. At the same time, the second electric cylinder 450 can also cooperate to make small-range reciprocating movements, thereby ensuring that the high-pressure airflow can cover and blow away all areas inside the light shield box 41, especially the surface of the light strip 43 and the detection head 44, thereby removing the attached dust. After cleaning, the second electric cylinder 450 retracts, and the cleaning component 45 is returned to the initial standby position. The light shield box 41 also descends to the standby height, and the entire system is ready to perform the next detection cycle.

[0048] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A battery casing coating quality inspection device, characterized in that: include: A frame (1) is provided with a testing mechanism (3) having a test box (30) and a mounting platform (37); A shielding mechanism (4) is disposed on the test box (30), the shielding mechanism (4) comprising: The second cylinder (40) is disposed at the upper end of the test box (30); A light-shielding box (41) is disposed at the output end of the second cylinder (40); A sealing ring (42) is disposed at the bottom edge of the light-shielding box (41). A light strip (43) is disposed at the top of the inner cavity of the light shield (41); A detection head (44) is disposed inside the light-shielding box (41); A cleaning component (45) is disposed on one side of the test box (30).

2. The battery casing coating quality inspection device according to claim 1, characterized in that: The shape and size of the light-shielding box (41) are closely matched with the mounting platform (37), and the sealing ring (42) is closely attached to the upper surface of the mounting platform (37).

3. The battery casing coating quality inspection device according to claim 1, characterized in that: The detection head (44) is embedded.

4. The battery casing coating quality inspection device according to claim 1, characterized in that: The cleaning assembly (45) includes a second electric cylinder (450) fixedly mounted on the inner wall of the test box (30). An extension rod (451) is fixedly connected to the output end of the second electric cylinder (450). A fixing frame (452) is fixed to the end of the extension rod (451). A pipe (453) is provided on the fixing frame (452).

5. The battery casing coating quality inspection device according to claim 4, characterized in that: The pipe (453) is connected to an external clean air source via a hose, and multiple nozzles (456) are evenly distributed on the outer side of the pipe (453).

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