Automobile air conditioning grille function integrity detection device

Abstract

The utility model relates to a kind of functional integrity detection equipment of automobile air conditioner grille, including cabinet and detection device, the sidewall of the cabinet is provided with the controller of data display function and the bearing platform for placing detection instrument, the cabinet is opened with accommodating cavity, and the outer wall of cabinet is opened with the operating port of communicating accommodating cavity;The detection device includes bottom plate, clamping assembly for clamping automobile air conditioner grille, power supply plug for power supply to automobile air conditioner grille, for pressing automobile air conditioner grille The pressure cylinder of mobile assembly and sensor component, the power supply plug and pressure cylinder are respectively arranged on mobile assembly and follow mobile assembly movement;Realize the quantitative detection and comprehensive determination of the functional integrity of automobile air conditioner grille, to ensure the stability and reliability of the whole vehicle air conditioner air distribution.

Description

Technical Field

[0001] This utility model relates to a device for testing the functional integrity of automotive air conditioning grilles. Background Technology

[0002] During automobile assembly, components with actuators, such as automobile air conditioning grilles, need to undergo electrical operation tests and geometric measurements before final assembly to verify whether they can reach and stabilize at the target angle within a specified time under set current / voltage conditions, and to display and retain parameters such as angle and time throughout the "maximum opening-closing" process.

[0003] Current practices rely heavily on manual plugging and unplugging of power connectors and placement in conventional positioning fixtures for testing. This is limited by the large size of the plastic parts of the automotive air conditioning grille, the small swing angle, the short action time, and the interference from repeated plugging and unplugging of power supplies. As a result, the repeatability of positioning is poor, the testing accuracy is difficult to guarantee, the yield rate is low, and the labor cost is high. Utility Model Content

[0004] The purpose of this invention is to provide a functional integrity testing device for automotive air conditioning grilles that reduces the overall cost of multi-category testing and significantly improves production cycle time and efficiency.

[0005] The purpose of this utility model is achieved as follows: A functional integrity testing device for automotive air conditioning grilles includes a cabinet and a testing device. The side wall of the cabinet is provided with a controller with data display function and a support for placing the testing instrument. The cabinet has a receiving cavity, and the outer wall of the cabinet has an operating port that communicates with the receiving cavity. The detection device includes a base plate, a clamping assembly for clamping the car air conditioning grille, a power plug for supplying power to the car air conditioning grille, a pressing cylinder for pressing the car air conditioning grille, a moving assembly, and a sensor assembly. The power plug and the pressing cylinder are respectively mounted on the moving assembly and move with the moving assembly. The base plate is provided with support members for supporting the car air conditioning grille at intervals, and a car air conditioning grille clamping area is formed between the front of the base plate and the support members. The clamping assembly and the moving assembly are arranged on the base plate. The sensor assembly is mounted on the base plate, with the sensing end of the sensor assembly facing the clamping area of ​​the car air conditioning grille. The detection device is detachably installed inside the receiving cavity.

[0006] The clamping assembly, power plug, pressure cylinder, moving assembly, and sensor assembly are all electrically connected to the controller.

[0007] By integrating a controller with data display onto the cabinet and placing the detachable testing device in a receiving cavity with an operating port, the testing unit and the universal cabinet are modularly separated, facilitating rapid model changeover and maintenance, and significantly reducing the modification cost of testing air conditioning grilles for different car models.

[0008] In the testing device, the base plate, support component, and clamping assembly form a stable clamping area. The moving component, in conjunction with the power supply plug and the clamping cylinder, completes automatic insertion / extraction and synchronous clamping, avoiding poor contact and inconsistency caused by manual insertion / extraction, shortening the test cycle and reducing connector wear.

[0009] By employing sensor components arranged towards the clamping area of ​​the automotive air conditioning grille, key parameters such as the opening angle and action time of the active fan blades, the following opening status of the driven fan blades, and the transmission condition of the linkage mechanism can be simultaneously acquired during a single power-on test. This enables quantitative detection and comprehensive judgment of the functional integrity of the automotive air conditioning grille. The test results are automatically compared with preset standards, directly outputting a conclusion on whether the automotive air conditioning grille is qualified. This avoids subjective errors caused by traditional visual inspection or experience-based judgment, significantly improving detection accuracy and consistency, facilitating data recording and traceability, and enabling early detection of potential defects such as fan blade jamming and linkage failure, thereby ensuring the stability and reliability of the vehicle's air conditioning air distribution.

[0010] The clamping assembly, power plug, clamping cylinder, moving assembly, and sensor assembly are all electrically connected to the controller, forming a unified control and data acquisition closed loop. This enables coordinated action timing, real-time parameter display, and record traceability, thereby improving efficiency and safety while ensuring detection accuracy and consistency.

[0011] The objective of this utility model can also be achieved by the following technical measures: Furthermore, the moving component includes a sliding plate, a first cylinder, a support frame, and a second cylinder. The sliding plate is slidably mounted on the base plate. The first cylinder is fixed to the base plate. The first rod of the first cylinder is connected to the sliding plate. The action of the first cylinder causes the first rod to extend and retract, thereby causing the sliding plate to slide. The support frame is fixed on the slide plate. The second cylinder is located on the top of the support frame. The end of the second rod of the second cylinder extends toward the slide plate and is connected to the power plug. The action of the second cylinder drives the second rod to extend and retract, thereby moving the power plug.

[0012] By setting a reciprocating sliding plate on the base plate and driving its linear movement by a first cylinder fixed on the base plate, while fixing a support frame on the sliding plate and arranging a second cylinder on the top of the support frame, the second cylinder drives the extension and retraction of a second rod connected to a power plug, thus forming a two-stage linear motion structure of "first overall forward and backward movement, then partial insertion and removal".

[0013] Before testing, the slide plate moves backward under the action of the first cylinder, providing ample space for the operator to conveniently place the car air conditioning grille into the clamping area and complete the clamping process through the operating port. After clamping, the first cylinder drives the slide plate to slide towards the clamping area of ​​the car air conditioning grille. Simultaneously, the clamping rod of the clamping cylinder abuts against the car air conditioning grille to prevent it from loosening or shifting. Subsequently, the second cylinder drives the power plug to move down precisely and automatically connect with the car air conditioning grille socket, supplying power to the car air conditioning grille motor to drive the fan blades to open. Sensors acquire and judge the relevant displacement / angle signals of the active fan blades, driven fan blades, and linkage mechanism, thereby realizing the integrated automatic completion of power supply plugging and unplugging, clamping and fixing, and functional testing. Compared with manual plugging and unplugging, it not only has a stable plugging and unplugging trajectory and easy adjustment of plugging and unplugging depth and position, which can be adapted to the installation depth of different car air conditioning grilles, but also effectively avoids skew, shaking, and poor contact, significantly improving plugging and unplugging consistency and testing efficiency, reducing operational intensity and connector wear, and improving the reliability and repeatability of car air conditioning grille qualification judgment.

[0014] Furthermore, the clamping cylinder is fixed on the support frame, and the clamping rod of the clamping cylinder faces the clamping area of ​​the car air conditioning grille.

[0015] The clamping cylinder stably clamps the car air conditioning grille, effectively preventing the grille from shifting due to vibration or stress reaction during operation. This ensures reliable power plug contact, stable sensor detection position, and improves the consistency of test conditions and the repeatability of measurement data.

[0016] Furthermore, the support member is disposed on the base plate and located in front of the movable component. The support member includes a front support component and a rear support component. The rear support component is provided with a baffle. The front support component and the rear support component form a limiting placement area for the car air conditioning grille.

[0017] By placing the support component in front of the moving assembly, and having the front support component and the rear support component with a baffle together form a limiting placement area for the automotive air conditioning grille, the grille is naturally guided and confined within the predetermined space when placed, preventing misalignment or tilting in the front-to-back or left-to-right directions. The placement position of the grille is reliably defined, resulting in more accurate positioning. The baffle also effectively prevents overshooting or offset of the workpiece. During subsequent clamping by the clamping components, pressing by the pressure cylinder, and plugging in the power supply, the grille remains in a uniform and stable reference position. This not only improves repeatability and ensures consistency of sensor detection positions but also reduces the time operators spend repeatedly adjusting the workpiece posture, thus improving detection efficiency and the reliability of detection results.

[0018] Furthermore, the clamping assembly includes two rotary clamping cylinders, which are respectively located on the left and right sides of the base plate.

[0019] By setting two rotary clamping cylinders on the left and right sides of the base plate, after the car air conditioning grille is placed in the limited placement area, the rotary clamping cylinders on the left and right sides rotate and clamp synchronously, realizing the double-sided symmetrical clamping of the car air conditioning grille. This ensures that the clamping force is evenly distributed, and it is not easy to deform or skew. This guarantees the stability of the car air conditioning grille's position during subsequent pressing, power plug insertion / removal, and fan blade movement testing. At the same time, the rotary clamping method occupies little space, and the clamping position can be appropriately adjusted according to the structure of different car air conditioning grilles, taking into account both versatility and adaptability. This avoids the workpiece shaking and displacement during the testing process from affecting the measurement accuracy, and reduces the operation of repeated manual adjustments, thereby improving clamping efficiency and the consistency and reliability of test results.

[0020] Furthermore, the sensor assembly includes a first sensor for detecting the opening status of the active fan blades of the automotive air conditioning grille, a second sensor for detecting the opening status of the driven fan blades of the automotive air conditioning grille, and a third sensor for detecting the functional status of the linkage mechanism of the automotive air conditioning grille.

[0021] The sensor assembly is subdivided into a first sensor for detecting the opening status of the active fan blades, a second sensor for detecting the following opening status of the driven fan blades, and a third sensor for detecting the function of the linkage mechanism. This allows the system to perform targeted monitoring and quantitative evaluation of the driving end, the driven end, and the intermediate transmission mechanism. As a result, it can not only determine whether the overall function of the car's air conditioning grille is intact, but also accurately locate whether the problem is an abnormality in the driving of the active fan blades, a poor response of the driven fan blades, or a failure in the linkage mechanism transmission. This facilitates rapid diagnosis of the cause of the fault and improves the accuracy of the judgment and maintenance efficiency.

[0022] Furthermore, the first sensor, the second sensor, and the third sensor are all laser displacement sensors.

[0023] The first, second, and third sensors are all designed as laser displacement sensors. Utilizing their non-contact, high-resolution, fast-response, and adaptability to small displacement and small-angle changes, they can accurately acquire the displacement or angle changes without interfering with the movement of the fan blades and connecting rods. They are particularly suitable for detecting the movement of plastic automotive air conditioning grilles with small-angle swings in a short period of time. This not only improves the accuracy and dynamic response capability of displacement / angle measurement, but also avoids the wear or impact on the action characteristics of the workpiece surface caused by mechanical contact detection, thereby significantly improving the stability and reliability of the detection.

[0024] Furthermore, the detection device also includes a power supply socket and a data transmission socket, which are respectively mounted on the base plate; The controller is connected to the data transmission socket via a data transmission cable. The clamping assembly, power plug, clamping cylinder, moving assembly, and sensor assembly are respectively connected to the data transmission socket via data transmission cables, so that the clamping assembly, power plug, clamping cylinder, moving assembly, and sensor assembly can communicate with the controller. The cabinet is equipped with a power plug, which is connected to a power socket. The clamping assembly, power plug, clamping cylinder, moving assembly, and sensor assembly are respectively connected to the power socket via power cables to provide power to the clamping assembly, power plug, clamping cylinder, moving assembly, and sensor assembly.

[0025] The testing device integrates a power supply socket and a data transmission socket on the base plate. The cabinet supplies power to the power supply socket through a power plug. The clamping components, power supply plug, clamping cylinder, moving components, and sensor components each draw power from the power supply socket through power cables and are centrally connected to the data transmission socket through data transmission cables. The controller then provides unified communication and control, achieving a wiring method of "centralized power supply, centralized signal, and pluggable modules." This not only significantly reduces the scattered wiring between the controller and various actuators, simplifying assembly and maintenance, but also allows for complete replacement or upgrade of the testing device by disassembling only a few interfaces. This truly enables plug-and-play and rapid replacement of testing modules, while also benefiting signal management and electrical safety.

[0026] Furthermore, the detection device also includes handles, which are respectively disposed on the base plate.

[0027] A handle is installed on the base plate, allowing the operator to directly lift and operate the entire testing device during handling, replacement, or maintenance. This facilitates the complete removal of the testing device from the cabinet's storage cavity or its reinstallation, while avoiding damage caused by directly grasping cables, air pipes, or precision components. It also reduces the risk of drops and bumps during handling, thereby improving the convenience and safety of equipment changeover and maintenance. This makes it suitable for production scenarios where different testing devices are frequently changed.

[0028] Furthermore, it also includes a safety light curtain, a warning light, and a switch. The safety light curtain is installed at the operating port of the cabinet, the warning light is installed at the top of the cabinet, and the switch is installed on the cabinet and next to the operating port. The safety light curtain, warning light, and switch are all electrically connected to the controller.

[0029] Only after the operator has completely removed their hand from the safety light curtain monitoring area after inserting the car air conditioning grille into the testing device through the operating port, and then presses the switch, will the equipment be allowed to enter the clamping and testing process for the car air conditioning grille, achieving double safety confirmation before start-up. If the operator accidentally presses the switch while their hand is still in the safety light curtain monitoring area, the controller will prevent the equipment from moving and will activate the warning light to provide an alarm prompt. The equipment will remain stopped to prevent clamping or collision accidents caused by accidental operation of the clamping components, moving components, clamping cylinders, and power plugs when personnel approach. This significantly improves the inherent safety and anti-misoperation capabilities of the testing equipment, meeting the stringent safety protection requirements of the production site.

[0030] The beneficial effects of this utility model are as follows: This invention integrates a controller with data display on the cabinet and places the detachable testing device in a receiving cavity with an operating port, thereby achieving modular separation of the testing unit from the universal cabinet. This facilitates rapid model changeover and maintenance, and significantly reduces the modification cost of testing the air conditioning grilles of different car models.

[0031] This invention subdivides the sensor assembly into a first sensor for detecting the opening status of the active fan blades, a second sensor for detecting the following opening status of the driven fan blades, and a third sensor for detecting the functional status of the linkage mechanism. This enables the system to perform targeted monitoring and quantitative evaluation of the driving end, the driven end, and the intermediate transmission mechanism, thereby not only determining whether the overall function of the automotive air conditioning grille is intact, but also accurately locating whether the problem is an abnormality in the driving of the active fan blades, a poor response of the driven fan blades, or a failure in the linkage mechanism transmission. This facilitates rapid diagnosis of the cause of the fault, improving the accuracy of the judgment and maintenance efficiency.

[0032] This invention designs the first, second, and third sensors as laser displacement sensors. Utilizing their non-contact, high-resolution, fast-response, and adaptability to small displacement and angle changes, they can accurately acquire the displacement or angle changes without interfering with the movement of the fan blades and connecting rods. This is particularly suitable for detecting the movement of plastic automotive air conditioning grilles with small-angle swings in a short period of time. It not only improves the accuracy and dynamic response capability of displacement / angle measurement, but also avoids the wear or impact on the action characteristics of the workpiece surface caused by mechanical contact detection, thereby significantly improving the stability and reliability of detection.

[0033] This invention allows the equipment to enter the clamping and testing process of the car air conditioning grille only after the operator has completely removed their hand from the safety light curtain monitoring area and pressed the switch, thus achieving double safety confirmation before startup. If the operator accidentally presses the switch while their hand is still in the safety light curtain monitoring area, the controller will prevent the equipment from moving and activate the warning light to provide an alarm. The equipment will remain stopped, preventing accidental clamping or collision accidents caused by malfunctions of the clamping components, moving components, pressing cylinders, and power plug when personnel approach. This significantly improves the inherent safety and anti-misoperation capabilities of the testing equipment, meeting the stringent safety requirements of the production site. Attached Figure Description

[0034] Figure 1 A schematic diagram of a device for testing the functional integrity of an automotive air conditioning grille (the testing device 2 clamps the automotive air conditioning grille 9).

[0035] Figure 2 This is a schematic diagram showing the separation of the cabinet and the detection device (detection device 2 clamping the car air conditioning grille 9).

[0036] Figure 3 This is a schematic diagram showing the separation of the cabinet and the detection device.

[0037] Figure 4 This is a schematic diagram of the detection device.

[0038] Figure 5 This is a schematic diagram of the detection device from another angle.

[0039] Figure 6 This is a schematic diagram showing the separation of the moving component and the base plate.

[0040] Figure 7 This is a schematic diagram showing the separation of the moving component and the base plate at another angle.

[0041] Figure 8 This is a schematic diagram of the detection device (the detection device clamps the car air conditioning grille).

[0042] Figure 9 This is another schematic diagram of the detection device (the detection device clamps the car air conditioning grille).

[0043] Figure 10 This is another schematic diagram of the detection device (the detection device clamps the car air conditioning grille).

[0044] Figure 11 This is a schematic diagram of a car air conditioning grille (with the active and passive fan blades in the closed state).

[0045] Figure 12This is another angled view of the car's air conditioning grille (with the active and passive fan blades in the closed state).

[0046] Figure 13 This is a schematic diagram of a car air conditioning grille (with the active and passive fan blades in the open position).

[0047] Figure 14 This is another angled view of the car's air conditioning grille (with the active and passive fan blades in the open position).

[0048] Figure 15 This is an exploded view of the car's air conditioning grille (with the active and passive fan blades in the open position). Detailed Implementation

[0049] The present invention will be further described below with reference to the accompanying drawings and embodiments: Implementation examples, in conjunction with Figures 1 to 15 As shown, a functional integrity testing device for an automotive air conditioning grille includes a cabinet 1 and a testing device 2. The side wall of the cabinet 1 is provided with a controller 11 with data display function and a support 12 for placing testing instruments. The cabinet 1 has a receiving cavity 13 and an operation port 14 communicating with the receiving cavity 13 is opened on the outer wall of the cabinet 1. The detection device 2 includes a base plate 21, a clamping assembly for clamping the car air conditioning grille 9, a power plug 4 for supplying power to the car air conditioning grille 9, a pressing cylinder 5 for pressing the car air conditioning grille 9, a moving assembly 6, and a sensor assembly 7. The power plug 4 and the pressing cylinder 5 are respectively mounted on the moving assembly 6 and move with the moving assembly 6. The base plate 21 is provided with support members 8 for supporting the car air conditioning grille 9 at intervals. The front of the base plate 21 and the support members 8 form a car air conditioning grille clamping area 15. The clamping assembly and the moving assembly 6 are provided on the base plate 21. The sensor assembly 7 is mounted on the base plate 21, with the sensing end of the sensor assembly 7 facing the clamping area 15 of the car air conditioning grille. The detection device 2 is detachably installed in the receiving cavity 13.

[0050] The clamping assembly, power plug 4, clamping cylinder 5, moving assembly 6, and sensor assembly 7 are electrically connected to the controller 11.

[0051] Furthermore, the moving component 6 includes a sliding plate 61, a first cylinder 62, a support frame 63, and a second cylinder 64. The sliding plate 61 is slidably mounted on the base plate 21. The first cylinder 62 is fixed on the base plate 21. The first rod 621 of the first cylinder 62 is connected to the sliding plate 61. The action of the first cylinder 62 drives the first rod 621 to extend and retract, thereby driving the sliding plate 61 to slide. The support frame 63 is fixed on the slide plate 61. The second cylinder 64 is located on the top of the support frame 63. The end of the second rod 641 of the second cylinder 64 extends toward the slide plate 61 and is connected to the power plug 4. The action of the second cylinder 64 drives the second rod 641 to extend and retract, thereby driving the power plug 4 to move.

[0052] Furthermore, the clamping cylinder 5 is fixed on the support frame 63, and the clamping rod 51 of the clamping cylinder 5 faces the clamping area 15 of the car air conditioning grille.

[0053] Furthermore, the support member 8 is disposed on the base plate 21 and located in front of the moving component 6. The support member 8 includes a front support member 81 and a rear support member 82. The rear support member 82 is provided with a baffle 821. The front support member 81 and the rear support member 82 form a vehicle air conditioning grille limiting placement area 83.

[0054] Furthermore, the clamping assembly includes two rotary clamping cylinders 3, which are respectively located on the left and right sides of the base plate 21.

[0055] Furthermore, the sensor assembly 7 includes a first sensor 71 for detecting the opening status of the active fan blade 91 of the automotive air conditioning grille 9, a second sensor 72 for detecting the opening status of the driven fan blade 92 of the automotive air conditioning grille 9, and a third sensor 73 for detecting the functional status of the linkage mechanism 93 of the automotive air conditioning grille 9.

[0056] Furthermore, the first sensor 71, the second sensor 72, and the third sensor 73 are all laser displacement sensors.

[0057] Furthermore, the detection device 2 also includes a power supply socket 100 and a data transmission socket 200, which are respectively mounted on the base plate 21; The controller 11 is connected to the data transmission socket 200 via a data transmission cable. The clamping assembly, power plug 4, clamping cylinder 5, moving assembly 6, and sensor assembly 7 are respectively connected to the data transmission socket 200 via data transmission cables, so that the clamping assembly, power plug 4, clamping cylinder 5, moving assembly 6, and sensor assembly 7 can communicate with the controller 11. The cabinet 1 is equipped with a power plug, which is connected to a power socket 100. The clamping assembly, power plug 4, clamping cylinder 5, moving assembly 6, and sensor assembly 7 are respectively connected to the power socket 100 via power cables to provide power to the clamping assembly, power plug 4, clamping cylinder 5, moving assembly 6, and sensor assembly 7.

[0058] Furthermore, the detection device 2 also includes a handle 300, which is respectively disposed on the base plate 21.

[0059] Furthermore, it also includes a safety light curtain 400, a warning light 500, and a switch 600. The safety light curtain 400 is installed at the operation port 14 of the cabinet 1, the warning light 500 is installed at the top of the cabinet 1, and the switch 600 is installed on the cabinet 1 and located next to the operation port 14. The safety light curtain 400, the warning light 500, and the switch 600 are electrically connected to the controller 11.

[0060] Structure of car air conditioning grille 9: The automotive air conditioning grille 9 includes at least one active fan blade 91, at least one driven fan blade 92, a motor 94, and a linkage mechanism 93 disposed between the motor 94 and each fan blade. When the motor 94 rotates under the action of external power supply, the linkage mechanism 93 drives the active fan blade 91 to swing within a predetermined angle range. The active fan blade 91 transmits its swing to the driven fan blade 92 through the linkage mechanism 93, so that the active fan blade 91 and the driven fan blade 92 can open and close synchronously to adjust the air conditioning air outlet direction and air volume.

[0061] Methods for testing the functional integrity of automotive air conditioning grilles and safe operating procedures for automotive air conditioning grille functional integrity testing equipment: Before testing, the slide plate 61 moves away from the clamping area 15 of the car air conditioning grille under the drive of the first cylinder 62. The operator places the car air conditioning grille 9 to be tested into the limited placement area formed by the front support component 81 and the rear support component 82 with baffle 821 through the operation port 14 of the cabinet 1. After the car air conditioning grille 9 is placed in place, the operator must first completely remove their hands from the monitoring area of ​​the safety light curtain 400, and ensure that the safety light curtain 400 is not obstructed. Then, the operator must press the switch 600 located next to the operation port 14. Only when the dual conditions of the controller 11 detecting that the safety light curtain 400 is unobstructed and the switch 600 is triggered are met simultaneously will the equipment be allowed to enter the clamping and testing process of the car air conditioning grille 9.

[0062] If the operator accidentally presses switch 600 while their hand is still within the monitoring area of ​​safety light curtain 400, the controller 11 will prevent the clamping component, moving component 6, pressing cylinder 5, and power plug 4 from operating. It will also activate the warning light 500 on the top of the cabinet 1 to provide an alarm, keeping the equipment stopped. This effectively prevents accidental clamping or collision accidents caused by personnel approaching the equipment, significantly improving the inherent safety and anti-misoperation capabilities of the testing equipment, and meeting the stringent safety protection requirements of the production site.

[0063] Subsequently, the first cylinder 62 drives the slide plate 61 to slide towards the clamping area 15 of the car air conditioning grille. The clamping rod 51 of the clamping cylinder 5 abuts against the car air conditioning grille 9 for clamping. The second cylinder 64 drives the power supply plug 4 to be plugged into the motor 94 socket of the car air conditioning grille 9, supplying power to the motor 94 of the car air conditioning grille 9 so that it drives the active fan blade 91 and the driven fan blade 92 to move. The first sensor 71, the second sensor 72 and the third sensor 73 respectively collect the opening status of the active fan blade 91, the opening status of the driven fan blade 92 and the movement status of the linkage mechanism 93, and upload the detection data to the controller 11 for analysis and processing and display on the screen. At the same time, the controller 11 can adjust the input current and other parameters according to the detection requirements, compare the detection results with the preset standards, and thus determine whether the functional integrity of the car air conditioning grille 9 is qualified, and realize the visualization and traceability of the detection data.

[0064] Methods and benefits of using laser displacement sensors to detect key moving parts of automotive air conditioning grille 9: The laser beam from the first sensor 71 is emitted toward the active fan blade 91. Under preset current and time conditions, the change in the distance of the beam caused by the swing of the active fan blade 91 is determined to be qualified when the relationship between the current, time and displacement corresponding to the standard is consistent with the standard. The laser beam from the second sensor 72 is directed toward the driven fan blade 92. When the distance change curve generated by the driven fan blade 92 under the same working conditions is consistent with the displacement change of the corresponding current and the corresponding time, the driven fan blade 92 is deemed to be qualified. The laser beam of the third sensor 73 is aimed at the initial and final positions of the linkage mechanism 93 respectively. Under the corresponding time and current conditions, the reference distance data of the initial end and the final end are acquired first. When the linkage mechanism 93 works, the front end of the linkage mechanism 93 reaches the initial end and the rear end of the linkage mechanism 93 reaches the final end, which will cause two significant changes in distance data respectively. If the distance change detected within the specified time window is consistent with the preset standard, it is determined that the action stroke and timing of the linkage mechanism 93 are qualified.

[0065] The active fan blade 91, driven fan blade 92, and linkage mechanism 93 are independently evaluated by the three laser displacement sensors mentioned above. Only when all three are deemed qualified can the overall functional integrity of the automotive air conditioning grille 9 be considered qualified. If the displacement data corresponding to any of the sensors is abnormal, it can be clearly located whether the fault occurs in the active fan blade 91, driven fan blade 92, or linkage mechanism 93. Furthermore, when the detection result shows that the active fan blade 91 does not swing, it can be determined that the motor 94 or the active fan blade 91 is faulty. This achieves high-precision, traceable non-contact detection and greatly improves the speed and specificity of fault diagnosis.

[0066] The quick replacement method and benefits of detection device 2; In practical use, when it is necessary to inspect the air conditioning grilles 9 of different car models, simply open the operation port 14 of the cabinet 1 while the power is off, loosen the locking parts used to limit and fix the inspection device 2, and the operator can pull the existing inspection device 2 out of the receiving cavity 13 through the handle 300 on the base plate 21. Then, push the inspection device 2 pre-configured for another model of car air conditioning grille 9 into the receiving cavity 13 along the guide position to position it in the preset installation position. Then, plug in the power socket 100 and the data transmission socket 200 and lock them in place to complete the model change. There is no need to replace common components such as the cabinet 1, the controller 11, the safety light curtain 400, and the warning light 500. This replacement method has fewer operation steps, does not require complicated disassembly and rewiring, and has a short model change time. It is suitable for production lines that frequently switch between different car air conditioning grilles 9.

[0067] The modular and pluggable design of the testing device 2 enables the sharing of multiple testing modules in one cabinet. This not only significantly reduces the company's redundant investment in testing equipment for various vehicle models, but also facilitates the development of new testing device 2 modules for new vehicle models to be connected to the original cabinet 1, improving the equipment's versatility and scalability, thereby effectively saving equipment procurement and debugging costs.

Claims

1. A functional integrity testing device for automotive air conditioning grilles, comprising a cabinet (1) and a testing device (2), characterized in that: The side wall of the cabinet (1) is provided with a controller (11) with data display function and a support (12) for placing testing instruments. The cabinet (1) has a receiving cavity (13) and the outer wall of the cabinet (1) has an operation port (14) that connects to the receiving cavity (13). The detection device (2) includes a base plate (21), a clamping assembly for clamping the car air conditioning grille (9), a power supply plug (4) for supplying power to the car air conditioning grille (9), a pressing cylinder (5) for pressing the car air conditioning grille (9), a moving assembly (6) and a sensor assembly (7). The power supply plug (4) and the pressing cylinder (5) are respectively mounted on the moving assembly (6) and move with the moving assembly (6). The base plate (21) is provided with support members (8) for supporting the car air conditioning grille (9) at intervals. The front of the base plate (21) and the support members (8) form a car air conditioning grille clamping area (15). The clamping assembly and the moving assembly (6) are provided on the base plate (21). The sensor assembly (7) is mounted on the base plate (21), with the sensing end of the sensor assembly (7) facing the clamping area (15) of the car air conditioning grille. The detection device (2) is detachably disposed within the receiving cavity (13); The clamping assembly, power plug (4), clamping cylinder (5), moving assembly (6) and sensor assembly (7) are electrically connected to the controller (11).

2. The functional integrity testing device for automotive air conditioning grilles according to claim 1, characterized in that: The moving component (6) includes a sliding plate (61), a first cylinder (62), a support frame (63), and a second cylinder (64). The sliding plate (61) is slidably mounted on the base plate (21). The first cylinder (62) is fixed on the base plate (21). The first rod (621) of the first cylinder (62) is connected to the sliding plate (61). The action of the first cylinder (62) drives the first rod (621) to extend and retract, thereby driving the sliding plate (61) to slide. The support frame (63) is fixed on the slide plate (61). The second cylinder (64) is located on the top of the support frame (63). The end of the second rod (641) of the second cylinder (64) extends toward the slide plate (61) and is connected to the power supply plug (4). The action of the second cylinder (64) drives the second rod (641) to extend and retract, thereby driving the power supply plug (4) to move.

3. The functional integrity testing device for automotive air conditioning grilles according to claim 2, characterized in that: The clamping cylinder (5) is fixed on the support frame (63), and the clamping rod (51) of the clamping cylinder (5) faces the clamping area (15) of the car air conditioning grille.

4. The functional integrity testing device for automotive air conditioning grilles according to claim 1, characterized in that: The support member (8) is set on the base plate (21) and located in front of the moving component (6). The support member (8) includes a front support member (81) and a rear support member (82). The rear support member (82) is provided with a baffle (821). The front support member (81) and the rear support member (82) form a vehicle air conditioning grille limiting placement area (83).

5. The functional integrity testing device for automotive air conditioning grilles according to claim 1, characterized in that: The clamping assembly includes two rotary clamping cylinders (3), and the rotary clamping cylinders (3) are respectively provided on the left and right sides of the base plate (21).

6. The functional integrity testing device for automotive air conditioning grilles according to claim 1, characterized in that: The sensor assembly (7) includes a first sensor (71) for detecting the opening status of the active fan blade (91) of the car air conditioning grille (9), a second sensor (72) for detecting the opening status of the driven fan blade (92) of the car air conditioning grille (9), and a third sensor (73) for detecting the functional status of the linkage mechanism (93) of the car air conditioning grille (9).

7. The functional integrity testing device for automotive air conditioning grilles according to claim 6, characterized in that: The first sensor (71), the second sensor (72) and the third sensor (73) are all laser displacement sensors.

8. The functional integrity testing device for automotive air conditioning grilles according to claim 1, characterized in that: The detection device (2) also includes a power supply socket (100) and a data transmission socket (200), which are respectively mounted on the base plate (21); The controller (11) is connected to the data transmission socket (200) via a data transmission cable. The clamping assembly, power plug (4), clamping cylinder (5), moving assembly (6) and sensor assembly (7) are respectively connected to the data transmission socket (200) via data transmission cables, so that the clamping assembly, power plug (4), clamping cylinder (5), moving assembly (6) and sensor assembly (7) can communicate with the controller (11) respectively. The cabinet (1) is equipped with a power plug, which is connected to a power socket (100). The clamping assembly, power plug (4), pressing cylinder (5), moving assembly (6) and sensor assembly (7) are respectively connected to the power socket (100) via power cables to provide power to the clamping assembly, power plug (4), pressing cylinder (5), moving assembly (6) and sensor assembly (7).

9. The functional integrity testing device for automotive air conditioning grilles according to claim 1, characterized in that: The detection device (2) also includes handles (300), which are respectively disposed on the base plate (21).

10. The functional integrity testing device for automotive air conditioning grilles according to claim 1, characterized in that: It also includes a safety light curtain (400), a warning light (500) and a switch (600). The safety light curtain (400) is installed at the operation port (14) of the cabinet (1). The warning light (500) is installed at the top of the cabinet (1). The switch (600) is installed on the cabinet (1) and located next to the operation port (14). The safety light curtain (400), the warning light (500) and the switch (600) are electrically connected to the controller (11).

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