Novel soft package battery module tab welding seam detection equipment

Abstract

The utility model discloses novel soft package battery module tab welding seam detection equipment, and relates to the technical field of welding seam detection. The novel soft package battery module tab welding seam detection equipment comprises a detection tool, wherein the detection tool is used for detecting a product sheet welding seam; the testing fixture is installed on the servo mechanism, and the servo mechanism drives the testing fixture to move in an xyz space coordinate system; the positioning mechanism is arranged on the servo mechanism and is used for identifying whether the to-be-detected product reaches the detection position or not; the pressure sensor is arranged at the detection end of the detection tool; the pressure sensor is electrically connected with the processor and is used for receiving the pressure signal and judging whether the weld joint reaches the standard or not; and the display device is electrically connected with the processor, and the processor transmits the judgment result to the display device in the form of an electric signal for displaying.

Description

Technical Field

[0001] This utility model relates to the field of weld inspection technology, specifically to a novel equipment for inspecting weld seams in the tab welding of soft-pack battery modules. Background Technology

[0002] The tab welding of pouch modules is a crucial step in the manufacturing process of pouch lithium-ion batteries. It involves welding the positive and negative tabs of the battery to external connecting pieces (usually metal sheets) to ensure current transmission. Due to the unique structure of pouch batteries, the quality of the tab welding directly affects the battery's performance and safety; therefore, the weld seams of the tab welding need to be inspected.

[0003] The current inspection methods for the tab welding of soft-pack modules generally include: CCD imaging, manual visual inspection, or prying inspection using auxiliary tools. CCD imaging and manual visual inspection can only check the appearance of the weld, while auxiliary tools can only detect incomplete welds. The weld inspection process is mostly manual, making the process uncontrollable and wasteful of manpower. It frequently results in missed inspections due to insufficient prying force or product damage due to excessive prying force. Utility Model Content

[0004] Therefore, this utility model provides a novel inspection device for the welding seam of the tab of a soft-pack battery module, which solves the problems of the above-mentioned technology where the prying force of manual prying inspection is not easy to control and the inspection results require human judgment and are inaccurate.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A novel inspection device for the welding seam of the tabs in a pouch battery module includes:

[0007] Inspection tool, the inspection tool being used to inspect the weld seams of the product sheet;

[0008] A servo mechanism is provided, and the fixture is mounted on the servo mechanism. The servo mechanism drives the fixture to move within the xyz spatial coordinate system.

[0009] The positioning mechanism, which is mounted on the servo mechanism, is used to identify whether the product to be inspected has reached the detection position.

[0010] A pressure sensor, wherein the pressure sensor is disposed at the detection end of the gauge;

[0011] The processor, wherein the pressure sensor is electrically connected to the processor, is used to receive pressure signals and determine whether the weld meets the standards;

[0012] The display device is electrically connected to the processor, and the processor transmits the judgment result to the display device for display as an electrical signal.

[0013] Optionally, the servo mechanism includes an x-axis slide rail, a y-axis slide rail and a z-axis slide rail, a first slider is slidably connected on the x-axis slide rail, the y-axis slide rail is slidably connected on the first slider, the z-axis slide rail is disposed on the y-axis slide rail, and a second slider is slidably connected on the z-axis slide rail.

[0014] The inspection tool is fixedly connected to the second slider;

[0015] The equipment body is fixedly connected to the Z-axis slide rail, and the positioning mechanism is located below the equipment body.

[0016] Optionally, the positioning mechanism is a CCD camera, which takes pictures and identifies the feature points of the product module to be inspected to achieve the positioning function.

[0017] Optionally, the display device is a display screen disposed on the top of the device body, and the display screen is electrically connected to the processor;

[0018] The display screen shows different colors to indicate whether the tested products are qualified.

[0019] Optionally, if the product passes the test, the display screen shows green; if the product fails the test, the display screen shows red.

[0020] Optionally, the device body also includes a memory electrically connected to the processor for storing product test results. The processor can connect to external devices to view the test results.

[0021] This utility model has at least the following beneficial effects:

[0022] This utility model, by setting up a positioning mechanism, identifies the product to be inspected after it reaches the designated position. The servo mechanism drives the inspection fixture to extend into the product. The pressure sensor at the front end of the inspection fixture detects the weld seam of the product. The pressure signal is transmitted to the processor for processing and to determine whether the pressure meets the standard. The detection result is then transmitted to the display device, realizing the automation and informatization of weld seam inspection, visualizing the inspection results, and ensuring the accuracy of weld seam inspection. Attached Figure Description

[0023] To more clearly illustrate the prior art and the present invention, the accompanying drawings used in the description of the prior art and the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other drawings from the provided drawings without any creative effort.

[0024] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which this utility model can be implemented. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0025] Figure 1 This is a first-view structural diagram of an embodiment of the present invention;

[0026] Figure 2 This is a second-view structural schematic diagram of an embodiment of the present invention.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Inspection fixture; 2. Servo mechanism; 21. X-axis slide rail; 22. Y-axis slide rail; 23. Z-axis slide rail; 24. First slider; 25. Second slider; 3. Positioning mechanism; 4. Display device; 5. Product to be inspected. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0030] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. The terms "first," "second," "third," "fourth," etc. (if present), in the specification, claims, and accompanying drawings of this utility model are intended to distinguish the objects they refer to. For solutions with a sequential flow, this terminology need not be interpreted as describing a specific order or sequence; for solutions with device structures, this terminology does not distinguish between matters of importance or positional relationships.

[0031] Furthermore, the terms “comprising,” “having,” and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are expressly listed, but may also include other steps or units that are not expressly listed but are inherent to these processes, methods, products, or devices, or steps or units added based on further optimizations of the inventive concept.

[0032] like Figure 1 and Figure 2 As shown, this utility model discloses a novel inspection device for the welding seam of the tabs of a soft-pack battery module, comprising:

[0033] Inspection tool 1, the inspection tool 1 being used to inspect the weld seams of the product sheet;

[0034] Servo mechanism 2, the fixture 1 is mounted on servo mechanism 2, servo mechanism 2 drives fixture 1 to move in xyz space coordinate system;

[0035] Positioning mechanism 3 is mounted on servo mechanism 2 and is used to identify whether the product to be inspected 5 has reached the detection position.

[0036] A pressure sensor is disposed at the detection end of the fixture 1;

[0037] The processor, wherein the pressure sensor is electrically connected to the processor, is used to receive pressure signals and determine whether the weld meets the standards;

[0038] Display device 4 is electrically connected to the processor, and the processor transmits the judgment result to display device 4 as an electrical signal for display.

[0039] The aforementioned equipment is installed on one side of the transplanting mechanism, and the inspection fixture 1 is located above the transplanting mechanism. The transplanting mechanism is used to transport the product 5 to be inspected to the inspection fixture 1 for inspection.

[0040] The transplanting mechanism is a belt or double-speed chain to transport the product 5 to be inspected. The product transported to the inspection fixture 1 is first coarsely positioned. A blocking cylinder is set on the transplanting mechanism. The blocking cylinder extends to block the tray of the product. A positioning hole is set on the tray. A telescopic positioning pin is set on the transplanting mechanism. After the blocking cylinder extends, the positioning pin also extends and cooperates with the positioning pin on the tray. At this time, the coarse positioning of the product is completed.

[0041] Then, by setting side-push cylinders around the tray in the transplanting mechanism, the side-push cylinders extend to the side wall of the product (abutting), further positioning of the product is achieved, and the side-push cylinders can also fix the product.

[0042] Then, the positioning mechanism 3 identifies product features, determines whether the product has reached the designated location, and accurately positions the product.

[0043] The aforementioned positioning mechanism 3 is generally a CCD camera. It takes pictures with the camera and identifies the feature points of the product module 5 to be inspected, thereby realizing the positioning function.

[0044] After the product positioning is completed, testing is conducted.

[0045] Furthermore, the servo mechanism 2 includes an x-axis slide rail 21, a y-axis slide rail 22 and a z-axis slide rail 23. A first slider 24 is slidably connected to the x-axis slide rail 21, the y-axis slide rail 22 is slidably connected to the first slider 24, the z-axis slide rail 23 is disposed on the y-axis slide rail 22, and a second slider 25 is slidably connected to the z-axis slide rail 23.

[0046] The inspection tool 1 is fixedly connected to the second slider 25;

[0047] The device body is fixedly connected to the z-axis slide rail 23, and the positioning mechanism 3 is located below the device body.

[0048] The above-mentioned device body is fixed on the z-axis slide rail 23 and can be adjusted in position by the x-axis slide rail 21 and the y-axis slide rail 22. The device body is a support rod horizontally set at the top of the z-axis slide rail 23, and the CCD camera of the positioning mechanism 3 is set at the outermost part of its lower end, facing the product 5 to be inspected, in order to position the product 5 to be inspected.

[0049] The first slider 24 is slidably connected to the x-axis slide rail 21, and the first slider 24 can move along the x-axis slide rail 21 in the x-direction. The y-axis slide rail 22 is slidably connected to the top of the first slider 24, and the y-axis slide rail 22 acts as a slider and moves along the first slider 24 in the y-direction. The z-axis slide rail 23 is fixed to the top of the y-axis slide rail 22, and the second slider 25 is slidably connected to the z-axis slide rail 23. The second slider 25 can move along the z-axis slide rail 23 in the z-direction. The gauge 1 is fixed on the second slider 25, so that the gauge 1 can move in the xyz spatial coordinate system.

[0050] Furthermore, the display device is a display screen disposed on the top of the device body, and the display screen is electrically connected to the processor;

[0051] The display screen shows different colors to indicate whether the tested products are qualified.

[0052] If the product passes the test, the display screen shows green; if the product fails the test, the display screen shows red.

[0053] In order to intuitively observe the weld inspection results, the display device is a color display screen. The inspection results are set to the corresponding display screen colors, and the inspectors can judge the inspection results by observing the colors.

[0054] Generally, acceptable colors are set to green, and unacceptable colors are set to red.

[0055] Alternatively, you can set different colors for qualified and unqualified items according to your needs.

[0056] The device also contains a memory, which is electrically connected to the processor and is used to store product test results. The processor can connect to external devices to view the test results.

[0057] In addition, a storage process can be set up within the device itself to store the test results. The storage device can be connected to external devices to export or view the test results.

[0058] The specific operation process of this utility model is as follows: After welding is completed, the product is transported to the work platform by the transfer mechanism. The platform fixes the product module. The positioning mechanism 3 takes pictures and positions the product module. The servo of the inspection tool 1 is started, and the inspection tool 1 is inserted into the bottom of the weld. The inspection tool 1 is lifted up. When the pressure value reaches the standard value, the inspection tool 1 stops moving. After a certain period of time, the weld is judged according to the change of pressure value. The inspection tool 1 is retrieved. The above steps are repeated until all welds of the product are inspected. The test results are bound to the product code and stored.

[0059] The weld inspection equipment of this utility model:

[0060] 1. All testing actions are controlled by equipment, completely eliminating manual intervention and avoiding errors caused by human operation;

[0061] 2. The inspection function is implemented by the equipment. There is a pressure sensor inside the inspection fixture 1. When the pressure value reaches the standard, the inspection action stops. The change in pressure value determines whether the weld is poorly welded.

[0062] 3. The equipment has a control screen and control program, which can be freely programmed to detect different models of modules.

[0063] In addition, the weld inspection equipment of this application has the following effects:

[0064] 1. The device is equipped with a CCD camera, which can take pictures and identify the feature points of the module to achieve positioning function.

[0065] 2. The equipment has a servo mechanism 2, which can adjust the position of the CCD imaging mechanism and the inspection tool 1.

[0066] 3. The equipment has a transplanting mechanism that can transport products to the work area.

[0067] 4. The working area has the function of positioning and fixing modules.

[0068] 5. The inspection fixture 1 is equipped with a pressure sensor. When the pressure value reaches the standard, the inspection action stops. The change in pressure value determines whether the weld is incomplete.

[0069] 6. The equipment has a processor that can compare the test results with standard values ​​to determine whether the weld is qualified.

[0070] 7. The processor can bind the product weld seam to the judgment result. After the entire product inspection is completed, the defective weld seam can be quickly judged based on the test result.

[0071] 8. The equipment has a recording function and can store the test results.

[0072] 9. The equipment is equipped with a display device that can display the weld being inspected on the screen. A green color indicates that the weld is qualified and a red color indicates that it is unqualified. The colors can be set freely.

[0073] Therefore, this application integrates the inspection tool 1 into the equipment to achieve automated and information-based weld inspection, visualizes the inspection results, and ensures the accuracy of weld inspection.

[0074] The above specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments.

[0075] The technical features of the above embodiments can be combined in any way (as long as there is no contradiction in the combination of these technical features). For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described; these embodiments not explicitly written should also be considered to be within the scope of this specification.

[0076] The present invention has been described in a relatively specific and detailed manner above through general description and specific embodiments. It should be noted that, without departing from the concept of the present invention, various modifications and improvements can be made to these specific embodiments, all of which fall within the scope of protection of this application. Therefore, the scope of protection of this patent application should be determined by the appended claims.

Claims

1. A novel inspection device for the welding seam of the tabs in a soft-pack battery module, characterized in that, include: Inspection tool, the inspection tool being used to inspect the weld seams of the product sheet; A servo mechanism is provided, and the fixture is mounted on the servo mechanism. The servo mechanism drives the fixture to move within the xyz spatial coordinate system. The positioning mechanism, which is mounted on the servo mechanism, is used to identify whether the product to be inspected has reached the detection position. A pressure sensor, wherein the pressure sensor is disposed at the detection end of the gauge; The processor, wherein the pressure sensor is electrically connected to the processor, is used to receive pressure signals and determine whether the weld meets the standards; The display device is electrically connected to the processor, and the processor transmits the judgment result to the display device for display as an electrical signal.

2. The novel soft-pack battery module tab welding weld inspection equipment according to claim 1, characterized in that: The servo mechanism includes an x-axis slide rail, a y-axis slide rail and a z-axis slide rail. A first slider is slidably connected to the x-axis slide rail, the y-axis slide rail is slidably connected to the first slider, the z-axis slide rail is disposed on the y-axis slide rail, and a second slider is slidably connected to the z-axis slide rail. The inspection tool is fixedly connected to the second slider; The equipment body is fixedly connected to the Z-axis slide rail, and the positioning mechanism is located below the equipment body.

3. The novel soft-pack battery module tab welding weld inspection equipment according to claim 1, characterized in that: The positioning mechanism is a CCD camera, which takes pictures and identifies the feature points of the product module to be inspected, thereby achieving the positioning function.

4. The novel soft-pack battery module tab welding weld inspection equipment according to claim 1, characterized in that: The display device is a display screen located on the top of the device body, and the display screen is electrically connected to the processor; The display screen shows different colors to indicate whether the tested products are qualified.

5. The novel soft-pack battery module tab welding weld inspection equipment according to claim 1, characterized in that: If the product passes the test, the display screen shows green; if the product fails the test, the display screen shows red.

6. The novel soft-pack battery module tab welding weld inspection equipment according to claim 1, characterized in that: The device also contains a memory, which is electrically connected to the processor and is used to store product test results. The processor can connect to external devices to view the test results.

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