Glue height and air tightness detection device
By designing a glue height and airtightness detection device, and adopting a negative pressure detection mode and a synchronous moving mechanism, the problem of inaccurate glue height and airtightness assessment in traditional detection methods has been solved, achieving efficient and accurate detection results, and is applicable to products of various specifications.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-16
- Publication Date
- 2026-04-10
AI Technical Summary
Traditional manual visual inspection or contact height measurement methods are difficult to accurately assess the glue height and airtightness of door handle ambient lights, and cannot quantify the integrity of the seal, resulting in poor sealing or glue overflow problems.
A glue height and airtightness detection device was designed, including a carrier, a positioning mechanism, a product scanning mechanism, a detection frame, a glue height detection mechanism, and an airtightness detection mechanism. It adopts a negative pressure detection mode and uses a glue height contact displacement sensor and an elastic sealing head for detection. Combined with a detection displacement module, synchronous movement is achieved, reducing standby time.
It improves the efficiency and accuracy of adhesive height and airtightness testing, saves space in the equipment, expands the applicable range of adhesive height testing, is compatible with various product specifications, avoids misjudgment in positive pressure testing, and ensures the safety and accuracy of testing.
Smart Images
Figure CN121829410A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of lighting assembly testing technology, specifically to a device for testing glue level and airtightness. Background Technology
[0002] With the increasing intelligence of automobiles and consumers' growing demand for personalized car interiors, ambient lighting, as a lighting configuration that can create a unique atmosphere inside the car, has become a standard feature in various vehicle models. During the assembly of door handle ambient lights, the wiring channels need to be sealed with adhesive. If the adhesive level in the adhesive application area on the door handle ambient light assembly mounting bracket is too low, it will lead to poor sealing and leakage channels; if the adhesive level is too high, it may overflow and contaminate the exterior surface, or even affect normal assembly or movement. Traditional manual visual inspection or contact-based height measurement methods are difficult to accurately assess high consistency and cannot quantify the integrity of the seal. Therefore, we have developed a device for detecting adhesive level and airtightness to improve the quality of door handle ambient light products and increase production efficiency. Summary of the Invention
[0003] The technical problem solved by this invention is to provide a device with high efficiency in detecting the adhesive content and airtightness of assembled ambient lights.
[0004] The technical solution adopted by the present invention to solve its technical problem is: a glue height and airtightness detection device, including a carrier for transferring the product to be tested, a positioning mechanism and a product scanning mechanism installed on both sides of the carrier in the transmission direction, and a detection frame. A detection shifting module is installed on the detection frame, and a detection equipment fixing plate is connected to the detection transmission frame. A glue height detection mechanism and an airtightness detection mechanism are installed on the detection equipment fixing plate.
[0005] Furthermore, the detection shifting module includes a detection transmission fixing plate mounted on the detection frame, on which a lead screw servo motor, a detection lead screw connected to the drive end of the lead screw servo motor via a coupling, and a detection nut used in conjunction with the detection lead screw are mounted.
[0006] Furthermore, the detection nut is connected to the detection equipment mounting plate and is driven to move by a lead screw servo motor; the detection moving module also includes a detection slide rail installed parallel to the lead screw, on which a detection slider is installed for use, and the detection slider is connected to the detection equipment mounting plate.
[0007] Furthermore, the glue height detection mechanism includes a glue height connecting plate mounted on the detection equipment fixing plate, a glue height detection cylinder mounted on the glue height connecting plate, a glue height detection fixture mounted on the drive end of the glue height detection cylinder, and a glue height contact displacement sensor for detecting glue height mounted on the glue height detection fixture.
[0008] Furthermore, the airtightness testing mechanism includes an airtight connecting plate mounted on the testing equipment fixing plate, an airtightness testing cylinder mounted on the airtight connecting plate, an airtightness testing fixture mounted on the drive end of the airtightness testing cylinder, and an elastic sealing head mounted on the airtightness testing fixture for testing the airtightness of the product.
[0009] Furthermore, the positioning mechanism includes a positioning frame and a positioning cylinder mounted on the positioning frame. The driving end of the positioning cylinder is connected to a positioning sensor bracket, and a positioning sensor is mounted on the positioning sensor bracket.
[0010] Furthermore, the product scanning mechanism includes a scanning frame, a scanning drive cylinder on the side of the scanning frame, a scanning mounting plate mounted on the drive end of the scanning drive cylinder, and a QR code scanner mounted on the scanning mounting plate for scanning QR codes on the product.
[0011] Furthermore, it also includes a high-density defective product clamping mechanism; the high-density defective product clamping mechanism includes a clamping frame installed on the side of the positioning mechanism, a defective product collection frame installed on the side of the clamping frame away from the positioning mechanism, a clamping and shifting module installed on the clamping and shifting module, a clamping and fixing plate installed on the clamping and shifting module, the clamping and fixing plate includes a clamping and fixing bracket installed on the clamping and shifting module and a clamping and fixing horizontal plate perpendicularly connected to the clamping and fixing bracket; a carrier positioning sensor is installed on one side of the clamping and fixing horizontal plate, and a defective product clamping mechanism is installed on the other side of the clamping and fixing horizontal plate.
[0012] Furthermore, the defective product gripping mechanism includes a gripping drive cylinder mounted on the gripping fixed horizontal plate and a gripping mechanism assembly plate mounted on the drive end of the gripping drive cylinder. The gripping mechanism assembly plate includes a gripping mechanism vertical plate connected to the gripping drive cylinder and a gripping mechanism horizontal plate mounted perpendicularly to the gripping mechanism vertical plate. Defective product servo electric grippers are mounted on the gripping mechanism horizontal plate.
[0013] The beneficial effects of this invention are as follows: This invention sets the glue height detection mechanism and the airtightness detection mechanism on the same fixed plate of the detection equipment, and drives them to move synchronously by a detection shifting module. This saves space in the device. The detection shifting module can drive both detection mechanisms simultaneously, reducing standby time and improving the overall product detection efficiency. Furthermore, the glue height detection mechanism is designed in two ways: a fixed type and an adjustable type, expanding its applicability and making it compatible with glue height detection for various product specifications without requiring hardware replacement, thus improving the equipment's versatility and flexible production capabilities.
[0014] This invention employs a negative pressure detection mode to test the airtightness of door handle ambient lights. By drawing gas out of the ambient light cavity under a pressure of -15 kPa, the test results are more accurate, effectively avoiding misjudgments caused by the detection head being pressed tightly and masking potential leaks during positive pressure testing. The elastic sealing head of this invention does not exert excessive pressure on the ambient light, further ensuring the accuracy and safety of the test. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the adhesive height and airtightness detection device of the present invention, excluding the adhesive height defective product clamping mechanism. Figure 1 ; Figure 2 This is a schematic diagram of the adhesive height and airtightness detection device of the present invention, excluding the adhesive height defective product clamping mechanism. Figure 2 ; Figure 3 This is a schematic diagram of the adhesive height and airtightness detection device of the present invention, excluding the adhesive height defective product clamping mechanism. Figure 3 ; Figure 4 This is a schematic diagram of the adhesive high defect product clamping mechanism of the present invention. Figure 1 ; Figure 5 This is a schematic diagram of the adhesive high defect product clamping mechanism of the present invention. Figure 2 ; The markings in the diagram are as follows: 1. Carrier; 2. Inspection frame; 3. Inspection shifting module; 4. Inspection equipment fixing plate; 5. Glue height connecting plate; 6. Glue height detection cylinder; 7. Glue height contact displacement sensor; 8. Airtight connecting plate; 9. Airtight detection cylinder; 10. Airtight detection fixture; 11. Elastic sealing head; 12. Positioning frame; 13. Positioning cylinder; 14. Positioning sensor bracket; 15. Positioning sensor; 16. Barcode scanner frame; 17. Barcode drive cylinder; 18. Barcode mounting plate; 19. QR code scanner; 20. Clamping frame; 21. Defective product collection box; 22. Clamping fixing frame; 23. Clamping fixing horizontal plate; 24. Carrier positioning sensor; 25. Clamping shifting module; 26. Clamping slide rail; 27. Clamping drive cylinder; 28. Clamping mechanism vertical plate; 29. Clamping mechanism horizontal plate; 30. Defective product servo electric gripper. Detailed Implementation
[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0017] The device in this product is mainly used to test the glue content and airtightness of door handle ambient lights after assembly.
[0018] like Figures 1 to 5The illustrated adhesive height and airtightness testing device includes a carrier 1 for transporting products to be tested, positioning mechanisms and product scanning mechanisms installed on both sides of the carrier 1 in the transport direction, and a testing frame 2. A testing shift module 3 is mounted on the testing frame 2. A testing equipment fixing plate 4 is connected to the testing frame, and the adhesive height testing mechanism and airtightness testing mechanism are mounted on the testing equipment fixing plate 4. The carrier 1 is transported via a conveyor line, carrying an assembled ambient light that has been sealed with sealant in the adhesive application area to the adhesive height and airtightness testing device station. After the ambient light is tested, the carrier 1 transports the product to the next station via the conveyor line. When the carrier 1 arrives at the adhesive height and airtightness testing device, the positioning mechanism positions the carrier 1, and the product scanning mechanism scans and identifies the QR code on the ambient light on the carrier 1, ultimately binding the data tested at this station with the QR code ID. The testing shift module can drive the adhesive height testing mechanism and the airtightness testing mechanism to move synchronously. This significantly reduces the equipment's footprint and improves testing efficiency.
[0019] Based on the above, such as Figures 1 to 3 As shown, the positioning mechanism includes a positioning frame 12 and a positioning cylinder 13 mounted on the positioning frame 12. The drive end of the positioning cylinder 13 is connected to a positioning sensor bracket 14, and a positioning sensor 15 is mounted on the positioning sensor bracket 14. The product scanning mechanism includes a scanning frame 16, a scanning drive cylinder 17 mounted on the side of the scanning frame 16, and a scanning mounting plate 18 mounted on the drive end of the scanning drive cylinder 17. A QR code scanner 19 for scanning QR codes on products is mounted on the scanning mounting plate 18. When the carrier 1 carrying the ambient light is transported to the inspection station via a transmission line, the positioning sensor 15 detects the carrier 1 and sends a signal, causing the carrier 1 to stop moving. The QR code scanner 19 radially scans the QR code of the ambient light on the carrier 1, identifies the ID of the ambient light, and performs data binding related work for the inspection at this station.
[0020] Based on the above, such as Figures 1 to 3 As shown, the detection shifting module 3 includes a detection transmission fixing plate mounted on the detection frame 2. The detection transmission fixing plate is equipped with a lead screw servo motor, a detection lead screw connected to the drive end of the lead screw servo motor via a coupling, and a detection nut that works in conjunction with the detection lead screw. The detection nut is connected to the detection equipment fixing plate 4, and the lead screw servo motor drives the detection equipment fixing plate 4 to move. To ensure smooth and stable movement of the detection equipment fixing plate 4 connected to the detection nut, a detection slide rail installed parallel to the lead screw is also provided. A matching detection slider is mounted on the detection slide rail, and the detection slider is connected to the detection equipment fixing plate 4. This allows for precise adjustment of the positions of the adhesive height detection mechanism and the airtightness detection mechanism, ensuring that the adhesive height contact displacement sensor 7 probe can be aligned with the detection point on the product, and that the elastic sealing head 11 can accurately conform to the ambient light for negative pressure detection.
[0021] Based on the above, such as Figures 1 to 3 As shown, the glue height detection mechanism includes a glue height connecting plate 5 mounted on the detection equipment fixing plate 4, a glue height detection cylinder 6 mounted on the glue height connecting plate 5, a glue height detection fixture mounted on the drive end of the glue height detection cylinder 6, and a glue height contact displacement sensor 7 for detecting glue height mounted on the glue height detection fixture. In this embodiment, since the door handle ambient light has four patterns: left front, left rear, right front, and right rear, and the glue application area of a single door handle is located diagonally on the carrier 1, two configurations of higher detection mechanisms are installed on the detection equipment fixing plate 4. One is the fixed type mentioned above, and the other is adjustable. Specifically, the structure is a glue height combination fixing frame installed on the detection equipment fixing plate 4. The glue height combination fixing frame is equipped with a glue height adjustable moving module parallel to the detection displacement module 3. The drive end of the glue height adjustable moving module is equipped with a glue height adjustable connecting plate. The glue height adjustable connecting plate is equipped with a glue height detection cylinder 6. The drive end of the glue height detection cylinder 6 is equipped with a glue height detection fixture. The glue height detection fixture is equipped with a glue height contact displacement sensor 7. The detection and displacement module 3 can drive a fixed glue height contact displacement sensor 7 to detect the glue height above one glue application area. The glue height detection cylinder 6 drives the glue height contact displacement sensor 7 downwards to detect the glue height. For the other glue application area, a glue height adjustable moving module drives a glue height adjustable connecting plate above it. Then, the glue height detection cylinder 6 drives the glue height contact displacement sensor 7 downwards to detect the glue height. After detection, the glue height contact displacement sensor 7 resets. The glue height contact displacement sensor 7 has communication capabilities and can provide feedback on the detected values.
[0022] Based on the above, as shown in the figure. Figure 3 As shown, the airtightness testing mechanism includes an airtight connecting plate 8 mounted on the testing equipment fixing plate 4, an airtightness testing cylinder 9 mounted on the airtight connecting plate 8, an airtightness testing fixture 10 mounted on the drive end of the airtightness testing cylinder 9, and an elastic sealing head 11 for testing the airtightness of the product mounted on the airtightness testing fixture 10. In positive pressure testing mode, the test head may compress gaps in the product during the downward pressure process, leading to misjudgment of the airtightness test. Therefore, this embodiment uses a negative pressure testing mode, which extracts gas from the ambient light cavity at a pressure of -15 kPa. Furthermore, the elastic sealing head 11 has a certain degree of elasticity, ensuring that the ambient light is not over-pressurized when the suction head of the elastic sealing head 11 is in contact with the ambient light, thus eliminating misjudgment. After the airtightness test is completed, the measured data is bound, and the system determines whether the product is good or defective based on the values.
[0023] Based on the above, such as Figure 4 and Figure 5As shown, it also includes a high-adhesion defective product clamping mechanism, which includes a clamping frame 20 installed on the side of the positioning mechanism and a defective product collection frame 21 installed on the side of the clamping frame 20 away from the positioning mechanism. After the high-adhesion detection mechanism and the airtightness detection mechanism at the previous station have completed their tests, the data is bound to the product's QR code. Whether the ambient light product is a qualified product, a high-adhesion defective product, or an airtightness defective product has been determined. For defective products, they will stop at the high-adhesion defective product clamping mechanism station. The main control system sends an execution signal to the high-adhesion defective product clamping mechanism, which clamps and places the product into the defective product collection frame 21. For good products, when they pass through the high-adhesion defective product clamping mechanism, the mechanism does not clamp the ambient light product but transports it to the next process via a conveyor line. A clamping and shifting module 25 is installed on the clamping and shifting module 25. A clamping and fixing plate is installed on the clamping and shifting module 25. The clamping and fixing plate includes a clamping and fixing frame 22 installed on the clamping and shifting module 25 and a clamping and fixing horizontal plate 23 perpendicularly connected to the clamping and fixing frame 22. A carrier positioning sensor 24 is installed on one side of the clamping and fixing horizontal plate 23, and a defective product clamping mechanism is installed on the other side of the clamping and fixing horizontal plate 23. When carrier 1 passes through the defective product clamping mechanism, carrier positioning sensor 24 will detect that carrier 1 will send a signal to the control system, and the transmission line will stop transporting. For defective products, clamping and shifting module 25 drives clamping fixing plate 23 to move towards carrier 1, so that the defective product clamping mechanism is located above the ambient light. In order to ensure the smooth operation of clamping fixing plate 23, clamping slide rail 26 is also installed next to clamping and shifting module 25. Clamping slider is provided on clamping slide rail 26 and clamping slider is connected to clamping fixing frame 22. Limiting slider is installed on the end of clamping slide rail 26 away from defective product collection frame 21.
[0024] Based on the above, such as Figure 4 and Figure 5 As shown, the defective product gripping mechanism includes a gripping drive cylinder 27 mounted on the gripping fixed horizontal plate 23, and a gripping mechanism assembly plate mounted on the drive end of the gripping drive cylinder 27. The gripping mechanism assembly plate includes a gripping mechanism vertical plate 28 connected to the gripping drive cylinder 27 and a gripping mechanism horizontal plate 29 vertically mounted to the gripping mechanism vertical plate 28. A defective product servo electric gripper 30 is mounted on the gripping mechanism horizontal plate 29. When the defective product gripping mechanism is above the ambient light, the gripping drive cylinder 27 drives the gripping mechanism vertical plate 28 to move downward, and the defective product servo electric gripper 30 grips the ambient light. After the ambient light is gripped, the gripping drive cylinder 27 drives the gripping mechanism vertical plate 28 to move upward, and the gripping displacement module 25 drives the gripping fixed horizontally away from the carrier 1 and move towards the defective product collection frame 21, placing the ambient light in the defective product collection frame 21. The gripping drive cylinder 27 and the gripping displacement module 25 then reset. It uses a servo-driven electric gripper for gripping, which allows for controlled force and prevents secondary damage to the ambient light.
[0025] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A device for detecting adhesive level and airtightness, characterized in that: It includes a carrier for transferring products to be tested, a positioning mechanism and a product scanning mechanism installed on both sides of the carrier in the transmission direction, and a testing frame. The testing frame is equipped with a testing shift module. A testing equipment fixing plate is connected to the testing transmission frame. A glue height testing mechanism and an airtightness testing mechanism are installed on the testing equipment fixing plate.
2. The adhesive height and airtightness detection device as described in claim 1, characterized in that: The detection shifting module includes a detection transmission fixing plate mounted on the detection frame. The detection transmission fixing plate is equipped with a lead screw servo motor, a detection lead screw connected to the drive end of the lead screw servo motor via a coupling, and a detection nut used in conjunction with the detection lead screw.
3. The adhesive height and airtightness detection device as described in claim 2, characterized in that: The detection nut is connected to the detection equipment mounting plate and is driven to move by a lead screw servo motor. The detection moving module also includes a detection slide rail installed parallel to the lead screw, on which a detection slider is installed for use. The detection slider is connected to the detection equipment mounting plate.
4. The adhesive height and airtightness detection device as described in claim 1, characterized in that: The glue height detection mechanism includes a glue height connecting plate mounted on the detection equipment fixing plate, a glue height detection cylinder mounted on the glue height connecting plate, a glue height detection fixture mounted on the drive end of the glue height detection cylinder, and a glue height contact displacement sensor for detecting glue height mounted on the glue height detection fixture.
5. The adhesive height and airtightness detection device as described in claim 1, characterized in that: The airtightness testing mechanism includes an airtight connecting plate mounted on the testing equipment fixing plate, an airtightness testing cylinder mounted on the airtight connecting plate, an airtightness testing fixture mounted on the drive end of the airtightness testing cylinder, and an elastic sealing head mounted on the airtightness testing fixture for testing the airtightness of the product.
6. The adhesive height and airtightness detection device as described in claim 1, characterized in that: The positioning mechanism includes a positioning frame and a positioning cylinder mounted on the positioning frame. The driving end of the positioning cylinder is connected to a positioning sensor bracket, and a positioning sensor is mounted on the positioning sensor bracket.
7. The adhesive height and airtightness detection device as described in claim 1, characterized in that: The product scanning mechanism includes a scanning frame, a scanning drive cylinder on the side of the scanning frame, a scanning mounting plate mounted on the drive end of the scanning drive cylinder, and a QR code scanner mounted on the scanning mounting plate for scanning QR codes on the product.
8. The adhesive height and airtightness detection device as described in claim 1, characterized in that: It also includes a high-density defective product clamping mechanism; the high-density defective product clamping mechanism includes a clamping frame installed on the side of the positioning mechanism, a defective product collection frame installed on the side of the clamping frame away from the positioning mechanism, a clamping and shifting module installed on the clamping and shifting module, a clamping and fixing plate installed on the clamping and shifting module, the clamping and fixing plate includes a clamping and fixing bracket installed on the clamping and shifting module and a clamping and fixing horizontal plate perpendicularly connected to the clamping and fixing bracket; a carrier positioning sensor is installed on one side of the clamping and fixing horizontal plate, and a defective product clamping mechanism is installed on the other side of the clamping and fixing horizontal plate.
9. The adhesive height and airtightness detection device as described in claim 8, characterized in that: The defective product gripping mechanism includes a gripping drive cylinder mounted on a gripping fixed horizontal plate and a gripping mechanism assembly plate mounted on the drive end of the gripping drive cylinder. The gripping mechanism assembly plate includes a gripping mechanism vertical plate connected to the gripping drive cylinder and a gripping mechanism horizontal plate mounted perpendicularly to the gripping mechanism vertical plate. Defective product servo electric grippers are mounted on the gripping mechanism horizontal plate.