Device for detecting air outlet of shell of automobile safety air bag generator

Abstract

An automobile safety airbag generator shell air outlet hole detection device relates to the technical field of safety airbag detection and comprises a detection table, an adjusting sliding groove is formed in the top of the detection table, an adjusting plate is mounted in the adjusting sliding groove and moves in the horizontal direction of the detection table, detection bases are mounted on the adjusting plate at intervals, and insertion mounting grooves are formed in the detection bases. A first arched support and a second arched support which are different in height are installed on the detection table in parallel, and an aperture detection mechanism and a permeability detection mechanism are installed on the first arched support and the second arched support respectively. According to the utility model, through cooperation of the adjustable detection bench and the detection pedestal on the adjusting plate, the installation number of the automobile safety air bag generator housing is increased, through cooperative work of the aperture detection mechanism and the permeability detection mechanism, automatic detection of aperture precision and permeability performance is realized, detection efficiency and precision are improved, and detection precision is improved. The manual operation intensity is reduced, and the large-scale production requirement is met.

Description

Technical Field

[0001] This utility model relates to the field of airbag detection technology, and in particular to a device for detecting the air outlet of an automotive airbag generator housing. Background Technology

[0002] The air vent of an automotive airbag generator housing is a crucial channel for gas ejection during airbag deployment. Its vent accuracy and permeability directly affect the airbag deployment speed and protective effect, making it a core indicator for ensuring driving safety. Traditional testing methods often involve manually measuring the vent diameter with handheld measuring tools, combined with manual ventilation testing of permeability. This is not only inefficient but also prone to errors due to manual operation, making it difficult to guarantee consistent testing accuracy. Furthermore, batch testing of automotive airbag generator housings requires individual adjustment of the testing position, resulting in poor adaptability, increased testing costs and time, and an inability to meet the testing needs of large-scale production.

[0003] Therefore, it is essential to provide a detection device for the air vent of an automotive airbag generator housing to address the shortcomings of existing technologies. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies by providing a device for detecting the air vent of an automotive airbag generator housing. This invention increases the number of automotive airbag generator housings that can be installed by using an adjustable testing platform and a testing base on an adjustment plate. By utilizing the collaborative work of the aperture detection mechanism and the transparency detection mechanism, it achieves automated detection of aperture accuracy and transparency performance, improves detection efficiency and accuracy, reduces manual operation intensity, and meets the needs of large-scale production.

[0005] The above-mentioned objectives of this utility model are achieved through the following technical means.

[0006] A device for detecting the air vent of an automotive airbag generator housing is provided, comprising a testing platform, an adjustment groove on the top of the testing platform, an adjustment plate installed inside the adjustment groove, the adjustment plate moving horizontally along the testing platform, testing bases installed at intervals on the adjustment plate, and insertion mounting slots on the testing bases; two sets of first arched brackets and second arched brackets of different heights are installed in parallel on the testing platform, and an aperture detection mechanism and a penetration detection mechanism are respectively installed on the first arched brackets and the second arched brackets.

[0007] The aperture detection mechanism includes several fixed seats, which are installed at the bottom of the first arched support. A lifting cylinder is installed on the fixed seat, and the lifting cylinder is connected to a detection head. A laser diameter measuring device is installed inside the detection head, and the laser diameter measuring device is electrically connected to a sensor. The sensors are installed side by side on the top of the first arched support.

[0008] Specifically, the transparency testing mechanism includes several air pumps, which are installed on the top of the second arched support. Below the air pumps, there is an electrically controlled telescopic rod that passes through the second arched support. The inside of the electrically controlled telescopic rod is hollow, and an air inlet pipe is connected inside the electrically controlled telescopic rod. A sealing joint is connected to the bottom of the electrically controlled telescopic rod.

[0009] Specifically, the top of the second arched support has a rectangular slot, and an air intake assembly is installed inside the rectangular slot. The air intake assembly includes a main air pipe, one end of which is connected to an external air source, and the other end of which is connected to a branch air pipe, which is connected to an air pump.

[0010] Specifically, the testing platform has support feet installed at the four corners of the bottom, a support column installed in the center of the support feet, and shock-absorbing feet fitted at the bottom of the support column.

[0011] Specifically, a sealing gasket is installed on the inner wall of the sealing joint, the top of the sealing joint is connected to the air intake pipe, and a pressure gauge is connected inside the sealing joint.

[0012] This invention increases the number of airbag generator housings that can be installed for testing by using an adjustable testing platform and a testing base on an adjustment plate. By utilizing the collaborative work of the aperture testing mechanism and the transparency testing mechanism, it achieves automated testing of aperture accuracy and transparency performance, improves testing efficiency and accuracy, reduces manual operation intensity, and meets the needs of large-scale production. Attached Figure Description

[0013] The present invention will be further described with reference to the accompanying drawings, but the content of the drawings does not constitute any limitation on the present invention.

[0014] Figure 1 This is a three-dimensional view of the overall structure of a detection device for the air vent of an automotive airbag generator housing according to this utility model.

[0015] Figure 2 This is a partial three-dimensional view of the aperture detection mechanism in the air outlet detection device for an automotive airbag generator housing according to this utility model.

[0016] Figure 3 This is a partial three-dimensional view of the transparency detection mechanism in the air outlet detection device for an automotive airbag generator housing according to this utility model.

[0017] Figure 4 This is a left-side view of the transparency detection mechanism in the air vent detection device for an automotive airbag generator housing according to this utility model.

[0018] from Figures 1 to 4 Including:

[0019] 1. Testing platform; 2. Adjusting slide; 3. Adjusting plate; 4. Testing base; 5. Insertion mounting slot; 6. First arched bracket; 7. Second arched bracket; 8. Aperture testing mechanism; 9. Transparency testing mechanism; 10. Fixed base; 11. Lifting cylinder; 12. Testing head; 13. Laser diameter gauge; 14. Sensor; 15. Air pump; 16. Electrically controlled telescopic rod; 17. Air inlet pipe; 18. Sealing joint; 19. Rectangular groove; 20. Air inlet assembly; 21. Main air pipe; 22. Branch air pipe; 23. Support leg; 24. Support column; 25. Shock-absorbing support leg; 26. Sealing gasket; 27. Barometer. Detailed Implementation

[0020] The present invention will be further described in conjunction with the following embodiments.

[0021] Example 1.

[0022] like Figure 1-4 As shown, an air vent detection device for an automotive airbag generator housing includes a detection platform 1. An adjustment groove 2 is provided on the top of the detection platform 1. An adjustment plate 3 is installed inside the adjustment groove 2. The adjustment plate 3 moves horizontally along the detection platform 1. Detection bases 4 are installed at intervals on the adjustment plate 3. Insertion and installation slots 5 are provided on the detection bases 4. Two sets of first arched brackets 6 and second arched brackets 7 of different heights are installed in parallel on the detection platform 1. A hole diameter detection mechanism 8 and a penetration detection mechanism 9 are respectively installed on the first arched brackets 6 and the second arched brackets 7.

[0023] The adjusting slide 2 is opened along the length of the testing table 1, and a guide rail is provided inside it. The slider at the bottom of the adjusting plate 3 slides in cooperation with the guide rail. The driving motor installed inside the testing table 1 adjusts the displacement of the adjusting plate 3. It can be moved horizontally by manual or electric drive. The testing bases 4 on the adjusting plate 3 are distributed at equal intervals. The shape of the insertion mounting groove 5 is adapted to the bottom of the car airbag generator housing. The car airbag generator housing is stably fixed by interference fit or elastic snap-fit ​​structure to avoid displacement during the testing process.

[0024] The first arched bracket 6 and the second arched bracket 7 are both made of high-strength alloy material and are vertically fixed to the upper surface of the testing table 1. They are distributed parallel to each other along the length of the testing table 1. The height of the first arched bracket 6 is lower than that of the second arched bracket 7. They correspond to the aperture detection station and the transparency detection station of the air vent of the car airbag generator housing, respectively, so that the testing process can be carried out continuously and the testing efficiency can be improved.

[0025] The aperture detection mechanism 8 includes several fixed seats 10. The fixed seats 10 are installed at the bottom of the first arched support 6. A lifting cylinder 11 is installed on the fixed seat 10. The lifting cylinder 11 is connected to the detection head 12. A laser diameter measuring device 13 is installed inside the detection head 12. The laser diameter measuring device 13 is electrically connected to a sensor 14. The sensor 14 is installed in parallel on the top of the first arched support 6.

[0026] The fixed base 10 is installed according to the spacing of the detection base 4. The lifting cylinder 11 is vertically fixed to the bottom of the fixed base 10. Its piston rod is rigidly connected to the detection head 12, which can drive the detection head 12 to move up and down, so that the detection head 12 is aligned with the air outlet of the car airbag generator housing. The laser diameter measuring instrument 13 adopts a high-precision laser sensor, which can measure the inner diameter of the air outlet in real time. The measurement data is transmitted to the sensor 14 through an electrical signal. The sensor 14 feeds back the data to an external control system that can be manually operated, so as to realize the real-time recording and analysis of the detection data.

[0027] The transparency testing mechanism 9 includes several air pumps 15, which are installed on the top of the second arched support 7. Below the air pumps 15, there is an electrically controlled telescopic rod 16 that passes through the second arched support 7. The electrically controlled telescopic rod 16 has a hollow structure inside and an air inlet pipe 17 is connected inside. A sealing joint 18 is connected to the bottom of the electrically controlled telescopic rod 16.

[0028] The spacing between the air pump 15 and the test base 4 corresponds one-to-one. The length of the electrically controlled telescopic rod 16 can be precisely adjusted to drive the sealing joint 18 to move up and down, so that the sealing joint 18 is tightly fitted with the air outlet of the car airbag generator housing. The air inlet pipe 17 runs through the inside of the electrically controlled telescopic rod 16 to realize the gas communication between the air pump 15 and the sealing joint 18, providing a gas source channel for the permeability test of the air outlet.

[0029] The top of the second arched support 7 has a rectangular groove 19, and an air intake assembly 20 is installed inside the rectangular groove 19. The air intake assembly 20 includes a main air pipe 21, one end of which is connected to an external air source, and the other end of which is connected to a branch air pipe 22. The branch air pipe 22 is connected to the air pump 15.

[0030] The rectangular slot 19 provides installation space for the air intake assembly 20. The main air pipe 21 diverts the gas from the external air source to each branch air pipe 22, and then delivers it to the corresponding air pump 15 through the branch air pipe 22, so as to realize simultaneous air supply at multiple stations and ensure that multiple car airbag generator housings can be tested for transparency at the same time, thereby improving testing efficiency.

[0031] The bottom of the testing table 1 is equipped with four support feet 23, and a support column 24 is installed in the center of the support feet 23. The bottom of the support column 24 is fitted with a shock-absorbing foot 25. The support feet 23 and the support column 24 work together to provide stable support for the testing table 1. The shock-absorbing foot 25 is made of rubber and has good shock absorption performance. It can absorb the vibration generated by the operation of the equipment during the testing process and avoid the vibration from interfering with the testing accuracy.

[0032] A sealing gasket 26 is installed on the inner wall of the sealing joint 18. The top of the sealing joint 18 is connected to the air intake pipe 17. A pressure gauge 27 is connected inside the sealing joint 18. The sealing gasket 26 enhances the sealing between the sealing joint 18 and the air outlet of the car airbag generator housing, preventing gas leakage from affecting the test results. The pressure gauge 27 can monitor the air pressure changes inside the sealing joint 18 in real time. If the air outlet has good permeability, the air pressure will remain stable or decrease at a set rate. If there is a blockage, the air pressure will continue to rise. This is used to determine the permeability of the air outlet and feed the test results back to the control system.

[0033] When using this invention, the airbag generator housing is inserted into the insertion mounting slot 5 and fixed according to the specifications of the airbag generator housing. After starting the equipment, the adjusting plate 3 moves the airbag generator housing sequentially to below the first arched bracket 6 and the second arched bracket 7. The lifting cylinder 11 on the first arched bracket 6 drives the detection head 12 to move down, and the laser diameter measuring instrument 13 detects the diameter of the air outlet. The data is transmitted to the control system via the sensor 14. Subsequently, the airbag generator housing moves to below the second arched bracket 7, and the electrically controlled telescopic rod 16 moves the sealing joint 18 down to fit with the air outlet. The air pump 15 inflates the air through the air intake pipe 17, and the air pressure gauge 27 monitors the air pressure change to determine the permeability. During the test, the shock-absorbing support foot 25 at the bottom of the support foot 23 reduces vibration interference and ensures the test accuracy.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A device for detecting the air vent of an automotive airbag generator housing, characterized in that: The device includes a testing platform with an adjustment groove on its top. An adjustment plate is installed inside the adjustment groove and moves horizontally along the testing platform. Testing bases are installed at intervals on the adjustment plate and have insertion slots on them. Two sets of first arched supports and second arched supports of different heights are installed in parallel on the testing platform. A aperture detection mechanism and a transparency detection mechanism are respectively installed on the first arched supports and the second arched supports. The aperture detection mechanism includes several fixed seats, which are installed at the bottom of the first arched support. A lifting cylinder is installed on the fixed seat, and the lifting cylinder is connected to a detection head. A laser diameter measuring device is installed inside the detection head, and the laser diameter measuring device is electrically connected to a sensor. The sensors are installed side by side on the top of the first arched support.

2. The device for detecting the air vent of an automotive airbag generator housing according to claim 1, characterized in that: The transparency testing mechanism includes several air pumps, which are installed on the top of the second arched support. An electrically controlled telescopic rod that penetrates the second arched support is connected below the air pumps. The electrically controlled telescopic rod has a hollow structure inside and an air inlet pipe is connected inside. A sealing joint is connected to the bottom of the electrically controlled telescopic rod.

3. The device for detecting the air vent of an automotive airbag generator housing according to claim 2, characterized in that: The second arched support has a rectangular groove at the top, and an air intake assembly is installed inside the rectangular groove. The air intake assembly includes a main air pipe, one end of which is connected to an external air source, and the other end of which is connected to a branch air pipe, which is connected to the air pump.

4. The device for detecting the air vent of an automotive airbag generator housing according to claim 3, characterized in that: The testing platform is equipped with support feet at the four corners of its bottom, and a support column is installed in the center of each support foot. The bottom of the support column is fitted with a shock-absorbing support foot.

5. The device for detecting the air vent of an automotive airbag generator housing according to claim 4, characterized in that: A sealing gasket is installed on the inner wall of the sealing joint, the top of the sealing joint is connected to the air intake pipe, and a pressure gauge is connected inside the sealing joint.

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