Detection system for detecting unblocking and air tightness

Abstract

The utility model discloses a detection system for detecting unblocking and air tightness. The detection system comprises a rack, a detection device and a conveying device, the conveying device comprises a conveying carrier frame and a clamping mechanism arranged on the conveying carrier frame, the conveying carrier frame is arranged on the rack, a crimping assembly and a pressure gauge are arranged on the clamping mechanism, and the crimping assembly and the pressure gauge are connected into a negative pressure source and a gas circuit of a device to be detected; the clamping mechanism is used for grabbing a device and pressing the device to the detection device, the clamping mechanism can move up and down, the conveying carrier frame can drive the clamping mechanism to move left and right, the detection device is used for blowing positive pressure to the device, the crimping assembly is used for extracting negative pressure to the device, and the pressure gauge is used for detecting the air pressure value of an air channel where the device is located. Based on the detection system, accurate and rapid unblocking detection and air tightness detection can be realized.

Description

Technical Field

[0001] This utility model relates to the field of blockage testing and sealing detection technology, and in particular to a detection system for detecting blockages and airtightness. Background Technology

[0002] Detecting blockages and airtightness of devices is a critical step in ensuring their performance, reliability, and safety, especially in systems involving fluid transmission, pressure control, or sealed environments (such as pipelines, valves, and medical equipment). Blockages can lead to decreased or interrupted flow, affecting efficiency or performance, and can also cause localized pressure increases, potentially resulting in pipeline ruptures or equipment damage. Poor device sealing can lead to leakage of the transmitted medium, which may cause safety accidents or lead to the rupture of pressure vessels or pipelines, affecting system operation and, in severe cases, causing personal injury.

[0003] For example, in the production process of lithium batteries, a formation process is required to activate the electrode materials and generate an SEI film. The formation process is actually a small-current charge and discharge process for the manufactured battery. During the charge and discharge process, the electrolyte decomposes, generating a large amount of gas. This gas will cause the internal gas pressure of the battery to increase, resulting in adverse consequences such as battery casing expansion and SEI film rupture.

[0004] A negative pressure formation mechanism is a type of device that uses suction and pressure control to promptly remove gases generated during the formation process. The negative pressure environment reduces the surface tension of the electrolyte, accelerates its penetration into the electrode pores, and improves the uniformity of the SEI film. A negative pressure formation mechanism typically consists of a power source and negative pressure module for drawing negative pressure, pressure sensors and controllers, a sealed cavity / clamp, and a gas handling device. Before applying a negative pressure environment to the battery, the negative pressure module needs to be disassembled from the negative pressure formation mechanism for blockage and airtightness testing to ensure the safety and stability of the process. Utility Model Content

[0005] The purpose of this invention is to provide a detection system for detecting blockages and airtightness of devices, which can perform rapid tests on device patency and airtightness.

[0006] To achieve the above objectives, this utility model discloses a detection system for detecting blockages and airtightness, which includes: a frame, a detection device, and a conveying device;

[0007] The conveying device includes a conveying frame and a clamping mechanism disposed on the conveying frame. The conveying frame is disposed on the frame. The clamping mechanism is provided with a crimping assembly and a pressure gauge. The crimping assembly and the pressure gauge are connected to the air path of the negative pressure source and the device to be tested.

[0008] The clamping mechanism is used to grasp the device and press the device onto the detection device. The clamping mechanism can move up and down. The conveying frame can drive the clamping mechanism to move left and right. The pressing assembly is used to apply negative pressure to the device. The detection device is used to apply positive pressure to the device. The pressure gauge is used to detect the air pressure value of the air path where the device is located.

[0009] Optionally, the testing device includes a testing carrier, a testing component, and a fixing component. The testing component and the fixing component are disposed on the testing carrier. The fixing component is used to fix the device to be tested, and the testing component is used to apply positive pressure to the device.

[0010] Optionally, the clamping mechanism includes a clamping frame, a clamping assembly, and a first lifting assembly. The first lifting assembly is disposed on the clamping frame and passes through the clamping frame and is connected to the first lifting assembly. The first lifting assembly can drive the clamping assembly to move up and down.

[0011] Furthermore, the clamping mechanism also includes a first guide component, which is disposed on the clamping frame and passes through the clamping frame to connect with the clamping component, so as to fix the lifting direction of the clamping component.

[0012] Optionally, the rack is further provided with a first conveyor line and a second conveyor line, and the detection device is disposed between the first conveyor line and the second conveyor line. The first conveyor line is used to convey the device to be detected to the area below the conveyor line, and the second conveyor line is used to send out the device that has been detected by the detection device.

[0013] Furthermore, the first conveyor line and the second conveyor line are respectively provided with a disassembly and assembly mechanism, which is used to separate the device to be tested on the first conveyor line from the tray used to transport the device, and to assemble the device and the tray on the second conveyor line.

[0014] Furthermore, the disassembly and assembly mechanism includes a mounting plate, a disassembly and assembly component, and a drive component. The disassembly and assembly component is disposed on the mounting plate, and the drive component is disposed on the mounting plate and passes through the mounting plate to connect with the disassembly and assembly component. The drive component is used to drive the disassembly and assembly component to extend and retract.

[0015] Furthermore, the disassembly and assembly mechanism is also equipped with a second lifting component, which can drive the disassembly and assembly mechanism to move up and down.

[0016] Optionally, the testing carrier is further provided with a first drag chain and a slide rail, the first drag chain being used to drive the testing component to move back and forth on the testing carrier and the fixing component.

[0017] Optionally, the detection system further includes a first scanning component, which is disposed above the detection device and is used to record the detection results of the device.

[0018] Compared with existing technologies, the present invention proposes a detection system for checking blockage and airtightness, comprising a frame, a detection device, and a conveying device. The conveying device includes a conveyor frame and a clamping mechanism mounted on the conveyor frame. The conveyor frame is mounted on the frame, and the clamping mechanism is used to clamp the device. The conveyor frame drives the clamping mechanism and the device it clamps to move left and right. The clamping mechanism is also vertically movable. The vertical movement of the clamped device and the horizontal movement of the conveyor frame are coordinated to deliver the device to the detection device for blockage and airtightness testing. The clamping mechanism is equipped with a crimping component and a pressure gauge for detecting blockage and airtightness of the device, and the test results are obtained by observing the pressure gauge. The vertically movable clamping mechanism ensures stable and reliable gripping regardless of the size of the device, while ensuring that the crimping component can tightly press against the device, thus guaranteeing the accuracy of blockage and airtightness testing. The conveyor frame can freely move the clamping mechanism and the device to the detection device, which helps reduce manual handling, speeds up the handling process, and improves detection efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the detection system for detecting blockages and airtightness according to an embodiment of the present invention.

[0020] Figure 2 This is a schematic diagram of the structure of the detection device of the detection system according to an embodiment of the present invention. Figure 1 .

[0021] Figure 3 This is a schematic diagram of the structure of the detection device of the detection system according to an embodiment of the present invention. Figure 2 .

[0022] Figure 4 This is a schematic diagram of the structure of the transmission device of the detection system according to an embodiment of the present invention.

[0023] Figure 5 This is a schematic diagram of the clamping mechanism and negative pressure module of the detection system according to an embodiment of the present invention.

[0024] Figure 6 This is a top view of the clamping mechanism of the detection system according to an embodiment of the present invention.

[0025] Figure 7 This is a schematic diagram of the disassembly and assembly mechanism of the detection system according to an embodiment of the present invention. Detailed Implementation

[0026] To explain in detail the technical content, structural features, objectives and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0027] This embodiment discloses a detection system for detecting blockages and airtightness, so as to perform rapid and accurate blockage and airtightness detection on the device under test.

[0028] See Figure 1 As shown, the detection system includes a frame 1, a detection device 2, and a conveying device 3.

[0029] The conveying device 3 includes a conveying frame 31 and a clamping mechanism 32 disposed on the conveying frame 31. The conveying frame 31 is disposed on the frame 1. The clamping mechanism 32 is provided with a crimping component 33 and a pressure gauge 34. The crimping component 33 and the pressure gauge 34 are connected to the air path of the negative pressure source and the device to be tested.

[0030] The clamping mechanism 32 is used to grasp the device and press it onto the detection device 2. The clamping mechanism 32 can move up and down. The conveyor frame 31 can drive the clamping mechanism 32 to move left and right. The detection device 2 is used to blow positive pressure onto the device. The pressing assembly 33 is used to draw negative pressure onto the device. The pressure gauge 34 is used to detect the air pressure value of the air path where the device is located.

[0031] See Figures 1 to 6 As shown, in this embodiment, the conveyor frame 31 is an electric guide rail, and the device to be tested is a negative pressure module A. The negative pressure module A is sent directly below the clamping mechanism 32, and then the clamping mechanism 32 descends, clamping the negative pressure module A. The interface of its internal airflow channel engages with the crimping component 33 on the clamping mechanism 32, which is connected to the negative pressure source. After engagement, the clamping mechanism 32 moves upward to lift the negative pressure module A, and the clamping mechanism 32 is sent directly above the testing device 2 by the conveyor frame 31. Then, the clamping mechanism 32 moves downward to press the lower interface of the negative pressure module A tightly against the testing device 2 for unblocking and airtightness testing.

[0032] The detection device 2 first works with the clamping mechanism 32 to test whether the negative pressure module A is blocked. The blockage test method is as follows: the negative pressure module A is evacuated based on the crimping component 33 until the air pressure value in the airflow channel of the negative pressure module A reaches the preset first set value. Then, the passage between the negative pressure source and the negative pressure module A is closed, and positive pressure gas is blown into the negative pressure module A through the detection device 2. During this process, the pressure value in the airflow channel inside the negative pressure module A is observed by the pressure gauge 34. If the air pressure value of the pressure gauge 34 becomes zero after the positive pressure gas is blown in, there is no blockage. Otherwise, if it is not zero, there is a blockage inside the negative pressure module A.

[0033] Next, while maintaining the current state of the negative pressure module A pressed against the detection device 2, the passage between the lower interface of the negative pressure module A and the detection device 2 is closed. The negative pressure module A is then drawn again through the crimping component 33 until the negative pressure value of the airflow channel inside the negative pressure module A reaches the preset second set value. Then, the passage between the negative pressure source and the negative pressure module A is closed. The leakage rate of the gas inside the negative pressure module A is observed through the pressure gauge 34. If the leakage rate meets the preset requirements, the airtightness of the negative pressure module A is qualified; otherwise, the airtightness of the negative pressure module A is unqualified.

[0034] Compared with existing technologies, the innovative detection system for detecting blockages and airtightness proposed in this utility model consists of a frame 1, a detection device 2, and a conveying device 3. The conveying device 3 is used to convey the device to the detection device 2 and to perform blockage and airtightness detection on the device. The conveying device 3 includes a conveying frame 31 and a clamping mechanism 32 disposed on the conveying frame 31.

[0035] The clamping mechanism 32 can achieve flexible lifting and lowering movements to adapt to the gripping needs of devices of different sizes and specifications, ensuring a stable and reliable clamping effect regardless of changes in the shape or size of the device. This greatly expands the applicability of the testing system and enables it to flexibly handle diverse testing tasks. With the assistance of the conveyor 31, the device can be easily and accurately delivered to the testing device 2, achieving efficient transfer. This process not only greatly reduces the intensity of manual labor and speeds up the handling, but also makes the entire testing process smoother and more efficient.

[0036] The clamping mechanism 32 is also equipped with a crimping component 33 and a pressure gauge 34. The clamping component 322 and the conveyor frame 31 can seamlessly connect the device to the detection device 2 for blockage detection while performing air tightness detection, simplifying the detection process. The lifting clamping mechanism 32 can tightly press the crimping component 33 against the device being tested, ensuring the accuracy of the air tightness detection.

[0037] In summary, the detection system of this embodiment achieves efficient detection of both device blockage and airtightness, and significantly improves stability, flexibility and detection efficiency.

[0038] See Figures 1 to 3As shown, the detection device 2 includes a detection frame 21, detection components 22, and a fixing component 23. The detection components 22 and the fixing component 23 are mounted on the detection frame 21. The fixing component 23 is used to fix the negative pressure module A to be tested, and the detection components 22 are used to blow positive pressure onto the negative pressure module A. In this embodiment, several detection components 22 are provided on the detection frame 21. Each detection component 22 is a blowing plate. The blowing plate has several blowing holes for blowing positive pressure onto the negative pressure cup inside the negative pressure module A. The bottom of the blowing plate is provided with several valves and interfaces corresponding to the blowing holes. The valves and interfaces are connected to a positive pressure source. The positive pressure source provides positive pressure gas to the blowing plate through the valves and interfaces. The positive pressure gas is thus blown into the negative pressure module A by the blowing plate during the detection of blockages. Optionally, guide posts 26 are also provided between the valves and interfaces to guide the installation of the blowing plate. The fixed component 23 is also equipped with a photoelectric switch 27. The photoelectric switch 27 is used to control the detection component 22 (air blowing plate) to blow positive pressure onto the negative pressure module A when the negative pressure module A is compacted onto the fixed component 23 and the detection component 22 (air blowing plate).

[0039] Optionally, the testing frame 21 is also equipped with a first drag chain 24, a slide rail 25, a timing belt 29, a filter 210, and a wiring board 211. The testing component 22 and the fixing component 23 are both mounted on the sliding plate 28. The first drag chain 24 is used to drive the sliding plate 28 to move back and forth on the testing frame 21. The timing belt 29 is configured to transport the negative pressure module A from the testing device 2 when the negative pressure module A fails to meet the test standard, so that the abnormality can be handled manually. The filter 210 is used to filter out fine particles such as dust on the sliding plate 28 to avoid dust interfering with the unblocking test and airtightness test of the negative pressure module A.

[0040] Optionally, the control terminal 212 of components such as the first drag chain 24, slide rail 25, and filter 210 is located at the rear end of the detection carrier 21, and the rear end of the detection carrier 21 is also provided with a storage box 213 for storing the negative pressure module A.

[0041] See Figure 1 , Figures 4 to 6 As shown, the clamping mechanism 32 includes a clamping frame 321, a clamping assembly 322, and a first lifting assembly 323. The first lifting assembly 323 is disposed on the clamping frame 321 and passes through the clamping frame 321 to connect with the clamping assembly 323. The first lifting assembly 323 can drive the clamping assembly 322 to move up and down. In this embodiment, the first lifting assembly 323 is a cylinder. The clamping mechanism 32 also includes a first guide assembly 324, which is disposed on the clamping frame 321 and passes through the clamping frame 321 to connect with the clamping assembly 322 to fix the lifting direction of the clamping assembly 322. The clamping assembly 322 has grippers on both sides for clamping the negative pressure module A.

[0042] The crimping assembly 33 includes a first crimping member 331 and a second crimping member 332. The clamping frame 321 is also equipped with a negative pressure valve 325 for connecting the negative pressure source and the first crimping member 331, a positive pressure valve 326, and a positive pressure regulating valve 327 for adjusting the pressure of the second crimping member 332. The positive pressure valve 326 is connected to the air passage between the positive pressure source and the first crimping member 331, and is also connected to the air passage between the positive pressure source and the control terminal 212 of the negative pressure valve 325. The positive pressure source provides positive pressure to the second crimping member 332 and the negative pressure valve 325 to open the interface between the negative pressure module A and the crimping assembly 33 and the negative pressure valve 325. This allows the negative pressure source to draw negative pressure from the negative pressure module A through the first crimping member 331 to detect whether the negative pressure module A is blocked and its airtightness. In this embodiment, the negative pressure valve 325 is a pneumatically controlled valve.

[0043] Optionally, the conveyor frame 31 is further provided with a second drag chain 35 for assisting in dragging the clamping mechanism 32, and the clamping frame 321 is further provided with an electrical control box 328 for controlling the lifting of the first lifting assembly 323 and a third drag chain 329 for supporting the pulling of the clamping assembly 322.

[0044] See Figure 1 As shown, the frame 1 is also equipped with a first conveyor line 4 and a second conveyor line 5. A detection device 2 is positioned between the first conveyor line 4 and the second conveyor line 5. The first conveyor line 4 is used to convey the negative pressure module A to be tested to below the conveyor device 3. The second conveyor line 5 is used to send out the negative pressure module A that has been detected by the detection device 2 as non-clogging and having qualified airtightness. In this embodiment, the first conveyor line 4 and the second conveyor line 5 are roller conveyors. The first conveyor line 4 and the second conveyor line 5 can be set as identical roller conveyors, or they can be selected according to actual needs, such as conveyor belts or other components with conveying functions.

[0045] See Figure 1 and Figure 7As shown, the first conveyor line 4 and the second conveyor line 5 are also respectively provided with disassembly and assembly mechanisms 6. Since the negative pressure module A is usually fixed on the restraint tray, the disassembly and assembly mechanism 6 is used to separate the negative pressure module A on the first conveyor line 4 from the restraint tray used to hold the battery, and to assemble the negative pressure module A on the second conveyor line 5 from the restraint tray. In this embodiment, the negative pressure module A to be tested, together with the restraint tray, is fed into the clamping assembly 322 directly below by the first conveyor line 4. The disassembly and assembly mechanism 6 unlocks the latch between the negative pressure module A and the restraint tray. Then, the clamping mechanism 32 descends and clamps the negative pressure module A. The first crimping member 331 and the second crimping member 332 are respectively pressed and connected to the positive pressure interface and the negative pressure interface of the negative pressure module A. Then, the negative pressure module A is lifted and conveyed to the testing device 2 for unblocking and airtightness testing. The negative pressure module A that passes the test is then sent to the second conveyor line 5 by the conveying device 3. The disassembly and assembly mechanism 6 on the second conveyor line 5 unlocks the latch of the restraint tray. The clamping mechanism 32 descends so that the negative pressure module A is inserted into the restraint tray on the second conveyor line 5. The latch of the restraint tray springs back and locks the negative pressure module A. Finally, the restraint tray and the negative pressure module A are simultaneously conveyed by the second conveyor line 5 to the next station for operation.

[0046] See Figure 7 As shown, the disassembly / assembly mechanism 6 includes a mounting plate 61, a disassembly / assembly component 62, and a drive component 63. The disassembly / assembly component 62 is disposed on the mounting plate 61, and the drive component 63 is disposed on the mounting plate 61 and passes through the mounting plate 61 to connect with the disassembly / assembly component 62. The drive component 63 is used to drive the disassembly / assembly component 62 to extend and retract. In this embodiment, the drive component 63 is a cylinder. Optionally, the disassembly / assembly mechanism 6 may also be provided with a second guide component 65 for guiding the extension and retraction direction of the drive component 63 and a limiting rod 66 for limiting the extension and retraction degree of the disassembly / assembly component 62.

[0047] See Figure 1 and Figure 7 As shown, the disassembly / assembly mechanism 6 is also equipped with a second lifting component 64, which can drive the disassembly / assembly mechanism 6 to move up and down. The disassembly / assembly mechanism 6 with the second lifting component 64 can adapt to the disassembly / assembly requirements of more specifications of restraint trays. Optionally, the disassembly / assembly mechanism 6 can also be equipped with a fourth cable chain 67 for supporting the disassembly / assembly mechanism 6. The drive component 63, the second guide component 65, and the limit rod 66 are all housed in a housing 68.

[0048] Previously, the negative pressure module A and the restraint tray required manual disassembly and assembly during the testing process, increasing equipment maintenance and labor costs. This was also time-consuming. Furthermore, after testing, if the negative pressure module A and the restraint tray were not installed correctly, the negative pressure module A could easily become misaligned with the battery, leading to reduced cell quality, inaccurate battery airtightness testing, and increased subsequent auxiliary material costs. The disassembly and assembly mechanism 6 reduces labor costs and improves disassembly and assembly efficiency.

[0049] See Figure 1 As shown, the detection system also includes a first scanning component 7, which is positioned above the detection device 2. The first scanning component 7 is used to record the detection results of the negative pressure module A. The detection results include unblocking detection results and airtightness detection results. When both unblocking detection results and airtightness detection results are qualified, the conveying device 3 carries the negative pressure module A to the second conveyor line 5. When either unblocking detection result or airtightness detection result fails to meet the standard, the synchronous belt 29 drives the substandard negative pressure module A out of the detection device 2.

[0050] Optionally, the detection system further includes a second scanning component 8 for scanning the information of the negative pressure module A and the corresponding restraint tray on the first conveyor line 4 and unbinding the information of the two, and a third scanning component 9 for scanning the information of the negative pressure module A and the corresponding restraint tray on the second conveyor line 5 and binding the information of the two.

[0051] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0052] Meanwhile, the above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent changes made in accordance with the scope of the present utility model patent application shall still fall within the scope of the present utility model.

Claims

1. A detection system for detecting blockages and airtightness, characterized in that, include: Frame, testing equipment, and conveying equipment; The conveying device includes a conveying frame and a clamping mechanism disposed on the conveying frame. The conveying frame is disposed on the frame. The clamping mechanism is provided with a crimping assembly and a pressure gauge. The crimping assembly and the pressure gauge are connected to the air path of the negative pressure source and the device to be tested. The clamping mechanism is used to grasp the device and press the device onto the detection device. The clamping mechanism can move up and down. The conveying frame can drive the clamping mechanism to move left and right. The pressing assembly is used to apply negative pressure to the device. The detection device is used to apply positive pressure to the device. The pressure gauge is used to detect the air pressure value of the air path where the device is located.

2. The detection system for detecting blockages and airtightness according to claim 1, characterized in that, The testing device includes a testing frame, a testing component, and a fixing component. The testing component and the fixing component are disposed on the testing frame. The fixing component is used to fix the device to be tested, and the testing component is used to apply positive pressure to the device.

3. The detection system for detecting blockages and airtightness according to claim 1, characterized in that, The clamping mechanism includes a clamping frame, a clamping component, and a first lifting component. The first lifting component is disposed on the clamping frame and passes through the clamping frame and is connected to the first lifting component. The first lifting component can drive the clamping component to move up and down.

4. The detection system for detecting blockages and airtightness according to claim 3, characterized in that, The clamping mechanism further includes a first guide component, which is disposed on the clamping frame and passes through the clamping frame to connect with the clamping component, so as to fix the lifting direction of the clamping component.

5. The detection system for detecting blockages and airtightness according to claim 1, characterized in that, The rack is also provided with a first conveyor line and a second conveyor line. The detection device is located between the first conveyor line and the second conveyor line. The first conveyor line is used to convey the device to be detected to the area below the conveyor line. The second conveyor line is used to send out the device that has been detected by the detection device.

6. The detection system for detecting blockages and airtightness according to claim 5, characterized in that, The first conveyor line and the second conveyor line are respectively provided with a disassembly and assembly mechanism. The disassembly and assembly mechanism is used to separate the device to be tested on the first conveyor line from the tray used to transport the device, and to assemble the device and the tray on the second conveyor line.

7. The detection system for detecting blockages and airtightness according to claim 6, characterized in that, The disassembly and assembly mechanism includes a mounting plate, a disassembly and assembly component, and a drive component. The disassembly and assembly component is disposed on the mounting plate, and the drive component is disposed on the mounting plate and passes through the mounting plate to connect with the disassembly and assembly component. The drive component is used to drive the disassembly and assembly component to extend and retract.

8. The detection system for detecting blockages and airtightness according to claim 6, characterized in that, The disassembly and assembly mechanism is also equipped with a second lifting component, which can drive the disassembly and assembly mechanism to move up and down.

9. The detection system for detecting blockages and airtightness according to claim 2, characterized in that, The testing frame is also equipped with a first drag chain and a slide rail. The first drag chain is used to drive the testing component and the fixing component to move back and forth on the testing frame.

10. The detection system for detecting blockages and airtightness according to claim 5, characterized in that, It also includes a first scanning component, which is disposed above the detection device and is used to record the detection results of the device.

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