A high-frequency airbag automatic cannula positive pressure, negative pressure sectional automatic leak detection equipment
Patent Information
- Application Number
- CN202611255046.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-08-18
- Publication Date
- 2026-11-03
AI Technical Summary
Current airbag production suffers from low accuracy and unreliable sealing due to manual cannulation, the inability of single positive pressure testing to comprehensively assess airtightness, and the lack of automated material handling and positioning mechanisms, resulting in low production efficiency, poor testing accuracy, and poor safety.
Design a high-frequency airbag automatic cannulation positive and negative pressure segmented automatic leak detection device. It adopts a conveying mechanism, a material picking mechanism, a pressing mechanism and a detection inflation mechanism to realize the automatic feeding, positioning and clamping of airbags. Combined with positive and negative pressure segmented detection, it ensures the airtightness detection of airbags under different pressure conditions.
It improves the positioning accuracy and sealing reliability of airbag detection, reduces the missed detection rate and false judgment rate, realizes the automated operation of airbags on continuous conveyor lines, improves production efficiency and detection accuracy, and ensures the safety of the detection process.
Smart Images
Figure CN123028759A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of airbag production and testing equipment technology, and in particular to a high-frequency airbag automatic cannulation positive and negative pressure segmented automatic leak detection device. Background Technology
[0002] In the field of airbag manufacturing, air tightness testing is a key step in ensuring product quality.
[0003] In existing technologies, airbag leak detection typically involves manually inserting the airbag hose into the inflation connector for pressure testing, or using simple pneumatic clamps for semi-automated operation. However, manual insertion suffers from low positioning accuracy and unreliable sealing. Different operators cannot maintain consistent insertion force and depth, easily leading to hose detachment or incomplete sealing during inflation, resulting in missed detections and misjudgments. Furthermore, existing leak detection equipment usually only uses a single positive pressure testing method, failing to comprehensively test the airtightness of the airbag under different pressure conditions and making it difficult to detect minute leaks. In addition, existing equipment lacks automated material handling, positioning, and conveying mechanisms. The loading, unloading, clamping, positioning, and inflation testing of the airbag during the testing process must be completed manually step by step, resulting in low production efficiency. Moreover, the airbag is prone to displacement, over-inflation, or even explosion during inflation testing, affecting the accuracy and safety of the detection. Summary of the Invention
[0004] The purpose of this invention is to provide a high-frequency airbag automatic intubation positive and negative pressure segmented automatic leak detection device to solve the above-mentioned technical problems.
[0005] To achieve the above objectives, the present invention provides the following technical solution: A high-frequency airbag automatic cannulation positive and negative pressure segmented automatic leak detection device includes a chassis, a conveying mechanism disposed within the chassis, a material picking mechanism and a pressing mechanism located above the conveying mechanism, and a detection inflation mechanism disposed on one side of the conveying mechanism. The detection inflation mechanism includes a hose sealing clamp, and a first clamping mechanism and a second clamping mechanism disposed between the hose sealing clamp and the conveying mechanism. The conveying mechanism is used to convey the airbag step by step along the production line direction. The material picking mechanism is used to grab the airbag from the previous station and place it in the airbag station on the conveying mechanism. The pressing mechanism is used to press the airbag downward and position it during detection, so that the airbag can only inflate to a certain thickness.
[0006] Preferably, the conveying mechanism is provided with a plurality of airbag stations, each airbag station having a notch on one side, the first tube clamping mechanism being positioned opposite the notch, the first tube clamping mechanism including a first cylinder, a first connecting seat and a first clamp, the first clamp being positioned on one side of the first connecting seat, the first cylinder being positioned at the lower end of the first connecting seat, and the first clamp being positioned in a "V" shape.
[0007] Preferably, the second clamping mechanism includes a second cylinder, a second connecting seat, a second clamp, a motor, and a pressure rod. The upper end of the second cylinder is provided with the second connecting seat, one side of the second connecting seat is provided with the motor, the output end of the motor is provided with the pressure rod, and the other side of the second connecting seat is provided with two second clamps. The pressure rod is used to press the hose into the two second clamps.
[0008] Preferably, the system further includes a first linear module, an electric cylinder, an electric cylinder mounting base, and a mounting base. The first linear module is disposed inside the housing. A plurality of electric cylinder mounting bases are disposed on the slide of the first linear module. The electric cylinder is disposed on one side of the electric cylinder mounting base, and the mounting base is disposed on the other side of the electric cylinder mounting base. The hose sealing clamp is disposed on the mounting base, and the electric cylinder is connected to the mounting base.
[0009] As a further preferred embodiment, the system also includes a base and a first guide rail. The base is provided on the other side of the second connecting seat, and the first guide rail is provided inside the base. Two sliders are provided on the first guide rail, and the two sliders are connected by a spring. Each slider is provided with a second clamp, and the two second clamps are arranged in a centrally symmetrical manner.
[0010] Preferably, several cameras are installed inside the chassis on the other side of the conveying mechanism.
[0011] Preferably, the material handling mechanism includes a second linear module, a support base, and vacuum suction cup grippers. The second linear module is connected to the inner wall of the chassis. The support base is provided on the slide of the second linear module. A plurality of vacuum suction cup grippers are provided at intervals at the lower end of the support base. The support base can extend into the external cutting device to pick up qualified airbags and move them to the airbag station on the conveying mechanism.
[0012] The above technical solution has the following advantages or beneficial effects: The high-frequency airbag automatic cannulation positive and negative pressure segmented automatic leak detection equipment provided by this invention automatically picks up airbags from the previous station and places them in the airbag station of the conveying mechanism, realizing automatic airbag feeding. The pressing mechanism presses the airbag downwards and positions it during testing, ensuring that the airbag can only inflate to a certain thickness, effectively preventing displacement or explosion of the airbag during inflation testing, and improving the safety and stability of the testing process. The first and second clamping mechanisms in the inflation detection mechanism work together to realize the automatic positioning and clamping of the hose. The hose sealing clamp clamps the end of the hose and seals it before inflating the airbag. Through the positive and negative pressure segmented detection method, the airtightness performance of the airbag under different pressure conditions can be comprehensively tested, effectively improving the positioning accuracy and sealing reliability of the hose clamping, and reducing the missed detection rate and false judgment rate. The overall structure realizes the integrated operation of automatic material picking, positioning, clamping, sealing and inflation detection of airbags on a continuous conveying line, which greatly improves production efficiency and detection accuracy. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the leak detection device in this invention; Figure 2 This is a schematic diagram of the internal structure of the leak detection device in this invention; Figure 3 This is a schematic diagram of the use of the inflation detection mechanism in this invention; Figure 4 This is a schematic diagram of the inflation detection mechanism in this invention; Figure 5 This is a schematic diagram of the cooperation between the hose sealing clamp and the second clamping mechanism in this invention; Figure 6 yes Figure 2 Enlarged view of point A in the middle; In the diagram: 101, chassis; 102, conveying mechanism; 103, material handling mechanism; 104, pressing mechanism; 105, detection and inflation mechanism; 106, airbag station; 107, hose sealing clamp; 108, first tube clamping mechanism; 109, first cylinder; 110, first connecting seat; 111, first clamp; 112, second tube clamping mechanism; 113, second cylinder; 114, second connecting seat; 115, second clamp; 116, motor; 117, pressure rod; 118, first linear module; 119, electric cylinder; 120, electric cylinder mounting seat; 121, mounting seat; 122, base; 123, first guide rail; 124, slider; 125, second linear module; 126, support seat; 127, vacuum suction cup gripper. Detailed Implementation
[0014] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0015] Please see Figure 1-6 The diagram illustrates a preferred embodiment of a high-frequency airbag automatic cannulation positive and negative pressure segmented automatic leak detection device. It includes a housing 101, a conveying mechanism 102 disposed within the housing 101, a material-grabbing mechanism 103 and a pressing mechanism 104 located above the conveying mechanism 102, and a detection inflation mechanism 105 disposed on one side of the conveying mechanism 102. The conveying mechanism 102 is used to convey the airbags step-by-step along the production line direction. The material-grabbing mechanism 103 is used to grab the airbags from the previous station and place them in the airbag station 106 on the conveying mechanism 102. The pressing mechanism 104 is used to press the airbag downwards and position it during detection, ensuring that the airbag can only inflate to a certain thickness, preventing displacement or explosion during inflation detection. The detection inflation mechanism 105 includes a hose sealing clamp 107, and a first clamping mechanism 108 and a second clamping mechanism 112 disposed between the hose sealing clamp 107 and the conveying mechanism 102.
[0016] In this embodiment, after the airbag is cut off and transported to the testing station, the material handling mechanism 103 grabs the airbag and places it on the airbag station 106 of the conveying mechanism 102. The pressing mechanism 104 moves downward, with a preset gap between itself and the airbag. Subsequently, the first clamping mechanism 108 rises from the side of the airbag station 106 to initially position the airbag hose. The second clamping mechanism 112 clamps the hose a second time, and then the hose enters the hose sealing clamp 107. The hose sealing clamp 107 clamps the end of the hose and seals it. After sealing, compressed air is injected into the airbag through the hose sealing clamp 107 to perform a positive pressure holding test to determine whether the airbag's airtightness is qualified. Then, the airbag is evacuated through the hose sealing clamp 107 to perform a negative pressure holding test. Through the segmented positive and negative pressure testing method, the airtightness performance of the airbag under different pressure conditions can be comprehensively tested, effectively detecting minor leakage defects. After the test is completed, all mechanisms are reset, and the conveying mechanism 102 transports the airbag to the next station. Through the above structure, the automatic material picking, positioning, clamping, sealing and inflation detection of the airbag on the continuous conveyor line are realized, which effectively improves the positioning accuracy and sealing reliability of the hose clamping, and reduces the missed detection rate and false judgment rate.
[0017] In this embodiment, the pressing mechanism 104 includes a cylinder, a pressure plate, and a first mounting plate. The first mounting plate is disposed at the lower end of the cylinder, and several pressure plates are disposed at the lower end of the first mounting plate. The cylinder drives the first mounting plate to move up and down, causing the pressure plates to enter or leave the airbag station 106. During testing, the pressure plates move downward to a position with a preset gap between them and the airbag, limiting the expansion thickness of the airbag and preventing displacement or over-inflation of the airbag during the inflation testing process, thus ensuring the safety and stability of the testing process.
[0018] Furthermore, as a preferred implementation method, such as Figure 4 As shown, the conveying mechanism 102 is provided with several airbag stations 106. Each airbag station 106 has a notch on one side, and the first clamping mechanism 108 is positioned opposite the notch. The first clamping mechanism 108 includes a first cylinder 109, a first connecting seat 110, and a first clamp 111. The first clamp 111 is located on one side of the first connecting seat 110, and the first cylinder 109 is located at the lower end of the first connecting seat 110. The first clamp 111 is arranged in a "V" shape. The first cylinder 109 is connected to the side frame of the conveying mechanism 102.
[0019] In this embodiment, the hose extends out of the airbag station 106 through the notch. The first cylinder 109 drives the first connecting seat 110 to move the first clamp 111 up and down. The opening structure of the "V"-shaped first clamp 111 can automatically guide the hose into the clamping position and perform preliminary positioning of the hose. The opening structure of the "V"-shaped clamp allows the hose to automatically slide into the clamping center along the "V"-shaped slope during clamping, achieving reliable positioning without precise alignment, effectively improving positioning efficiency and adaptability.
[0020] Furthermore, in a preferred embodiment, the second hose clamping mechanism 112 includes a second cylinder 113, a second connecting seat 114, second clamps 115, a motor 116, and a pressure rod 117. The second connecting seat 114 is located at the upper end of the second cylinder 113. The motor 116 is located on one side of the second connecting seat 114, and the pressure rod 117 is located at the output end of the motor 116. Two second clamps 115 are located on the other side of the second connecting seat 114. The pressure rod 117 is used to press the hose into the two second clamps 115. The lower end of the second cylinder 113 is connected to the housing 101.
[0021] In this embodiment, the motor 116 drives the pressure rod 117 to rotate, pressing the hose located between the two second clamps 115 downwards into the clamping area of the two second clamps 115. The second cylinder 113 drives the second connecting seat 114 to move the second clamps 115 up and down, so that the hose can enter the clamping area of the two second clamps 115. The automatic insertion of the hose is achieved by the motor 116 driving the pressure rod 117. Compared with the traditional pneumatic or manual method, the insertion force and stroke are more precise and controllable, effectively avoiding deformation or damage to the hose during the insertion process. At the same time, the lifting drive of the second cylinder 113 enables the hose to be accurately fed into the sealing clamp, improving the reliability of the seal.
[0022] Furthermore, as a preferred implementation method, such as Figure 3 As shown, the leak detection device also includes a first linear module 118, an electric cylinder 119, an electric cylinder mounting base 120, and a mounting base 121. The first linear module 118 is housed within the casing 101. Several electric cylinder mounting bases 120 are mounted on the slide of the first linear module 118. An electric cylinder 119 is mounted on one side of each electric cylinder mounting base 120, and a mounting base 121 is mounted on the other side. A hose sealing clamp 107 is mounted on the mounting base 121. The electric cylinder 119 is connected to the mounting base 121. The first linear module 118 is used for initial adjustment of the position of the hose sealing clamp 107. During use, when the hose enters the clamping area between the two second clamps 115, the electric cylinder 119 drives the mounting base 121 to move the hose sealing clamp 107 linearly, causing the end of the hose to insert into the hose sealing clamp 107. The first linear module 118 achieves coarse positioning of the hose sealing clamp 107, and the electric cylinder 119 achieves precise positioning, ensuring that the end of the hose can be accurately inserted into the hose sealing clamp 107, thus improving the accuracy and reliability of the insertion.
[0023] Furthermore, as a preferred implementation method, such as Figure 6 As shown, the leak detection device also includes a base 122 and a first guide rail 123. The base 122 is located on the other side of the second connecting seat 114. The first guide rail 123 is located inside the base 122. Two sliders 124 are mounted on the first guide rail 123 and are connected by a spring. Each slider 124 is equipped with a second clamp 115, and the two second clamps 115 are arranged symmetrically at the center. When the hose enters the first clamp 111, the second cylinder 113 drives the two second clamps 115 to move upward. Then, the motor 116 drives the pressure rod 117 to rotate, so that the pressure rod 117 presses the hose into the clamping area of the two second clamps 115. The two sliders 124 can adaptively adjust their spacing under the elastic force of the spring, so that the two second clamps 115 maintain an appropriate clamping force when clamping the hose, ensuring that the position of the hose is more stable during the test and preventing the hose from bending.
[0024] Furthermore, as a preferred embodiment, several cameras are installed inside the housing 101 on the other side of the conveying mechanism 102 to detect whether the airbags are qualified, such as whether the QR code is complete and whether the hanging holes at the corners are intact. The conveying mechanism 102 is a belt conveyor, and a collection port is provided at one end of the conveying mechanism 102 inside the housing 101. A collection box is provided inside the housing 101 below the collection port to collect unqualified airbags. When the cameras detect that an airbag is unqualified, the conveying mechanism 102 conveys the airbag to the collection port, and the airbag falls into the collection box through the collection port, realizing the automatic rejection of unqualified airbags and ensuring that all airbags circulating on the production line are qualified products.
[0025] Furthermore, as a preferred implementation method, such as Figure 2 As shown, the material handling mechanism 103 includes a second linear module 125, a support base 126, and vacuum suction cup grippers 127. The second linear module 125 is connected to the inner wall of the housing 101. The support base 126 is mounted on the slide of the second linear module 125. Several vacuum suction cup grippers 127 are spaced apart at the lower end of the support base 126. The support base 126 can extend into the external cutting device to pick up qualified airbags and move them to the airbag station 106 on the conveying mechanism 102. The second linear module 125 drives the support base 126 to move, realizing the automatic transfer of airbags from the previous station to the conveying mechanism 102. The vacuum suction cup grippers 127 grasp the airbags through negative pressure adsorption, ensuring that the airbags are not damaged during the transfer process, thus improving the efficiency and stability of material handling.
[0026] During use, after the airbag is cut off, the second linear module 125 of the material handling mechanism 103 drives the support seat 126 to extend into the external cutting device. The vacuum suction cup gripper 127 picks up the qualified airbag and moves it to the airbag station 106 on the conveying mechanism 102. The conveying mechanism 102 steps the airbag along the production line to the inspection station. After reaching the inspection station, the cylinder of the pressing mechanism 104 drives the first mounting plate to move downward, bringing the pressure plate into the airbag station 106, maintaining a preset gap with the airbag. Subsequently, the first cylinder 109 of the first clamping mechanism 108 drives the first connecting seat 110 to raise the first clamp 111 from the side of the airbag station 106. The "V"-shaped first clamp 111 guides the hose into the clamping position for initial positioning of the hose. Next, the second cylinder 113 of the second clamping mechanism 112 drives the second connecting seat 114 to move the second clamp 115 upward, and the motor 116 drives the pressure rod 117 to rotate, pressing the hose into the clamping area of the two second clamps 115 for secondary clamping. Then, the electric cylinder 119 drives the mounting seat 121 to move the hose sealing clamp 107 linearly, so that the end of the hose is inserted into the hose sealing clamp 107, and the hose sealing clamp 107 clamps the end of the hose and seals it. After sealing, compressed air is injected into the airbag through the hose sealing clamp 107 to perform a positive pressure holding test to determine whether the airbag's airtightness is qualified; then, the airbag is evacuated through the hose sealing clamp 107 to perform a negative pressure holding test. Through the segmented positive and negative pressure testing method, the airtightness performance of the airbag under different pressure conditions can be comprehensively tested. After the test is completed, all mechanisms are reset, and the conveying mechanism 102 transports the airbag to the next station. If the camera detects that the airbag is defective, the conveying mechanism 102 will transport the airbag to the recycling port for collection through the recycling bin.
[0027] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.
[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0029] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A high-frequency airbag automatic intubation positive and negative pressure segmented automatic leak detection device, characterized in that, The device includes a chassis, a conveying mechanism housed within the chassis, a material-grabbing mechanism and a pressing mechanism located above the conveying mechanism, and a detection inflation mechanism located on one side of the conveying mechanism. The detection inflation mechanism includes a hose sealing clamp, and a first clamping mechanism and a second clamping mechanism located between the hose sealing clamp and the conveying mechanism. The conveying mechanism is used to convey the airbag step by step along the production line direction. The material-grabbing mechanism is used to grab the airbag from the previous station and place it in the airbag station on the conveying mechanism. The pressing mechanism is used to press the airbag downward and position it during detection, so that the airbag can only inflate to a certain thickness.
2. The high-frequency airbag automatic intubation positive and negative pressure segmented automatic leak detection device as described in claim 1, characterized in that, The conveying mechanism is provided with several airbag stations. Each airbag station has a notch on one side. The first tube clamping mechanism is positioned opposite the notch. The first tube clamping mechanism includes a first cylinder, a first connecting seat, and a first clamp. The first clamp is positioned on one side of the first connecting seat, and the first cylinder is positioned at the lower end of the first connecting seat. The first clamp is shaped like a "V".
3. The high-frequency airbag automatic intubation positive and negative pressure segmented automatic leak detection device as described in claim 1, characterized in that, The second pipe clamping mechanism includes a second cylinder, a second connecting seat, a second clamp, a motor, and a pressure rod. The second connecting seat is provided at the upper end of the second cylinder, the motor is provided on one side of the second connecting seat, the pressure rod is provided at the output end of the motor, and two second clamps are provided on the other side of the second connecting seat. The pressure rod is used to press the hose into the two second clamps.
4. The high-frequency airbag automatic intubation positive and negative pressure segmented automatic leak detection device as described in claim 1, characterized in that, It also includes a first linear module, an electric cylinder, an electric cylinder mounting base, and a mounting base. The first linear module is installed inside the chassis. Several electric cylinder mounting bases are installed on the slide of the first linear module. An electric cylinder is installed on one side of the electric cylinder mounting base, and a mounting base is installed on the other side of the electric cylinder mounting base. A hose sealing clamp is installed on the mounting base, and the electric cylinder is connected to the mounting base.
5. The high-frequency airbag automatic intubation positive and negative pressure segmented automatic leak detection device as described in claim 1, characterized in that, It also includes a base and a first guide rail. The other side of the second connecting seat is provided with a base, and the first guide rail is provided inside the base. Two sliders are provided on the first guide rail, and the two sliders are connected by a spring. Each slider is provided with a second chuck, and the two second chucks are arranged symmetrically at the center.
6. The high-frequency airbag automatic intubation positive and negative pressure segmented automatic leak detection device as described in claim 1, characterized in that, Several cameras are installed inside the chassis on the other side of the conveyor mechanism.
7. The high-frequency airbag automatic intubation positive and negative pressure segmented automatic leak detection device as described in claim 1, characterized in that, The material handling mechanism includes a second linear module, a support base, and vacuum suction cup grippers. The second linear module is connected to the inner wall of the machine housing. The support base is provided on the slide of the second linear module. Several vacuum suction cup grippers are spaced apart at the lower end of the support base. The support base can extend into the cutting device to pick up qualified airbags and move them to the airbag station on the conveying mechanism.