Suspension air supply module performance detection device

Abstract

The utility model discloses a kind of suspension air supply module performance detection devices, belong to valve test equipment technical field, the device includes: product, is equipped with multiple interfaces, further includes: support structure, with U-shaped groove, for carrying product;Pressing mechanism, for pressing product on support structure;Gas distribution mechanism, its position and quantity are set corresponding with the interface of product, including plugging head and driving mechanism, plugging head is connected with product corresponding interface by driving mechanism to realize gas distribution;Power distribution mechanism, including probe and third driving mechanism, probe is connected with product by third driving mechanism to realize power distribution;Exhaust detection mechanism, including pressure sensor and exhaust joint, product pressing state, exhaust joint is connected with product and exhaust is detected by pressure sensor.This application adopts integrated mechanism, solve the problem that traditional detection device air tightness is poor, contact is not good and detection precision is low, with the advantages of high detection efficiency, convenient operation and protect product appearance integrity.

Description

Technical Field

[0001] This utility model belongs to the technical field of valve testing equipment, specifically relating to a performance testing device for a suspension air supply module. Background Technology

[0002] As a core component of the automotive air suspension system, the suspension air supply module directly impacts the vehicle's ride quality. Existing testing technologies suffer from several technical bottlenecks: regarding interface sealing, the ASU has multiple interfaces in different orientations, making it difficult for traditional testing devices to achieve simultaneous and accurate sealing of multiple interfaces, especially when there are installation deviations, which can easily lead to air leakage or poor electrical contact; regarding mechanism coordination, the valve train and power distribution mechanisms often operate independently, lacking overall layout optimization, resulting in cumbersome and inefficient testing processes; regarding the adaptability of actuators, key components such as sealing heads and probes are mostly rigidly connected, unable to effectively compensate for product assembly errors; in exhaust gas testing, existing devices have insufficient exhaust connector sealing performance, and pressure signal acquisition is easily interfered with. These problems severely restrict the accuracy and efficiency of ASU performance testing, urgently requiring a highly integrated, highly adaptive, and reliable testing solution. Utility Model Content

[0003] The purpose of this application is to provide a suspension air supply module performance testing device and its support structure, clamping mechanism, air distribution mechanism, power distribution mechanism and exhaust detection mechanism, which has the advantages of multi-interface synchronous and precise sealing, mechanism collaborative optimization, adaptive compensation for assembly errors and improved exhaust detection accuracy.

[0004] This application provides a suspension air supply module performance testing device, the technical solution of which is as follows: It includes: a product with multiple interfaces; a support structure with a U-shaped groove for supporting the product; a clamping mechanism for clamping the product onto the support structure; an air distribution mechanism whose position and number correspond to the product's interfaces, including a sealing head and a driving mechanism, the sealing head being connected to the corresponding product interface via the driving mechanism to achieve air distribution; a power distribution mechanism including a probe and a third driving mechanism, the probe being connected to the product via the third driving mechanism to achieve power distribution; and an exhaust detection mechanism including a pressure sensor and an exhaust connector, wherein, under the product clamping condition, the exhaust connector is connected to the product and the pressure sensor detects exhaust.

[0005] Preferably, the gas distribution mechanism further includes a mounting plate, and the output end of the drive mechanism is connected to the plug head through the mounting plate. The mounting plate has holes, and the plug head is floatingly connected within the holes, so that the plug head can move radially within the holes to match the interface position and connect.

[0006] Preferably, the gas distribution mechanism includes: a first gas distribution mechanism located below the U-shaped groove, which includes a first sealing head and a first driving mechanism. The output end of the first driving mechanism is provided with a first mounting plate, which has a hole, and the first sealing head is clearance-fitted into the hole of the first mounting plate.

[0007] Preferably, the gas distribution mechanism includes: a second gas distribution mechanism located on the side of the U-shaped groove, which includes a second sealing head and a second driving mechanism. The output end of the second driving mechanism is provided with a second mounting plate, and the second sealing head is clearance-fitted into a hole on the second mounting plate.

[0008] Preferably, the product interface has a sealing ring. When the sealing head is connected to the product interface, the sealing ring is compressed by the sealing head to achieve air circuit sealing.

[0009] Preferably, the power distribution mechanism further includes a probe holder, with the probe mounted on one side of the probe holder. The probe holder is floatingly connected to the output end of the third drive mechanism, enabling the probe to match the product position and connect.

[0010] Preferably, the exhaust connector has a through air passage inside, one end of which is connected to a pressure sensor, and the other end of which is an exhaust port that is connected to the product's exhaust port.

[0011] Preferably, the clamping mechanism includes: a connecting rod hinged to the support structure; a cylinder, the cylinder body of which is hinged to the support structure, the piston rod of which is rotatably connected to the connecting rod via the same rotating rod, the connecting rod swinging around the rotating rod as a fulcrum, and a pressure plate movably connected to the upper part of the connecting rod.

[0012] Preferably, the side of the pressure plate that contacts the product is provided with an elastic buffer layer, which is made of silicone, to prevent scratches or deformation of the product surface during the pressing process.

[0013] Preferably, the support structure includes a vertically arranged fixed plate, a U-shaped groove at the upper end of the fixed plate, a support plate at the bottom of the U-shaped groove, and a positioning pin on the side of the fixed plate that is in contact with the product.

[0014] As can be seen from the above, the suspension air supply module performance testing device and its supporting structure, clamping mechanism, air distribution mechanism, power distribution mechanism and exhaust detection mechanism provided in this application achieve multi-directional interface adaptive sealing through the collaborative work of the supporting structure and the floating air distribution mechanism. Combined with the floating probe of the power distribution mechanism and the clamping mechanism with a buffer layer, it effectively compensates for assembly errors. At the same time, the exhaust detection mechanism with an integrated pressure sensor solves the problems of poor air tightness, poor contact and low detection accuracy of traditional testing devices. It has the advantages of high detection efficiency, convenient operation and protection of the product's appearance. Attached Figure Description

[0015] Figure 1A schematic diagram of a suspension air supply module performance testing device; Figure 2 This is a schematic diagram of the first valve train mechanism; Figure 3 This is a schematic diagram of the second valve train. Figure 4 A schematic diagram showing the connection between the power distribution mechanism and the exhaust detection mechanism and the supporting structure; Figure 5 This is a schematic diagram showing the cooperation between the power distribution mechanism and the exhaust gas detection mechanism; Figure 6 This is a schematic diagram of the clamping mechanism.

[0016] Reference numerals: Support structure 1; Fixing plate 11; U-shaped groove 12; Support plate 13; Positioning pin 14; Tooling base plate 15; First air distribution mechanism 21; First sealing head 22; First mounting plate 24; First sliding plate 25; First cylinder 26; Second air distribution mechanism 31; Second sealing head 32; Second mounting plate 34; Push cylinder 35; Second cylinder 36; Power distribution mechanism 4; Probe 41; Probe seat 42; Base plate 44; Third cylinder 45; Pressing mechanism 5; Connecting rod 51; Push-pull cylinder 52; Rotating rod 53; Pressure plate 54; Elastic buffer layer 55; Exhaust detection mechanism 6; Pressure sensor 61; Exhaust plug 62. Detailed Implementation

[0017] The technical solution of this utility model will be further described in detail below with reference to specific embodiments and accompanying drawings: Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] See Figure 1 This application provides a suspension air supply module performance testing device, comprising: a product with multiple interfaces; a support structure 1 having a U-shaped groove 12 for supporting the product; a clamping mechanism 5 for clamping the product onto the support structure 1; an air distribution mechanism, the position and number of which correspond to the product's interfaces, including a sealing head and a driving mechanism, the sealing head being connected to the corresponding product interface via the driving mechanism to achieve air distribution; a power distribution mechanism 4, including a probe 41 and a third driving mechanism, the probe 41 being connected to the product via the third driving mechanism to achieve power distribution; and an exhaust detection mechanism 6, including a pressure sensor 61 and an exhaust connector 62. Under the product clamping condition, the exhaust connector 62 is connected to the product and the pressure sensor 61 detects exhaust. The exhaust connector 62 is elastically connected to the support structure 1; when the probe 41 moves away from the product, it pushes the exhaust connector 62 to move in the same direction; when the probe 41 moves closer to the product, it resets due to the elastic connection.

[0019] It should be noted that the sealing head has a hollow structure with a venting groove. One end of the sealing head is tightly connected to the interface, and the other end can be connected to a flexible air tube. The product has an air tank to facilitate air distribution.

[0020] The product is placed in the U-shaped groove 12 of the support structure 1, and the clamping mechanism 5 presses the product firmly onto the support structure 1. The drive mechanism of the gas distribution mechanism pushes the sealing head, causing it to contact the product interface to form an airtight connection. The third drive mechanism of the power distribution mechanism 4 pushes the probe 41, causing it to contact the product's electrical interface for conduction. The exhaust connector 62 is connected to the product's exhaust port in the clamped state, and the pressure sensor 61 collects exhaust pressure data through the gas path. All mechanisms work together to achieve simultaneous operation of gas path sealing, electrical connection, and exhaust detection.

[0021] Through the above technical solutions, this application achieves synchronous and precise sealing of multiple interfaces, reducing the risk of gas leakage; the coordinated layout of the gas distribution and power distribution mechanism 4 improves detection efficiency; the floating connection structure adaptively compensates for assembly errors, reducing manual intervention; the exhaust detection mechanism 6 is directly connected to the product exhaust port, ensuring that the pressure signal acquisition is real and reliable, and fully meeting the high-precision detection requirements of the suspension air supply module.

[0022] The gas distribution mechanism also includes a mounting plate. The output end of the drive mechanism is connected to the plug head via the mounting plate. The mounting plate has holes in which the plug head floats and connects, allowing the plug head to move radially within the holes to match the interface position and connect.

[0023] Floating connection refers to a connection method that allows relative displacement between the sealing head and the mounting plate. This can be achieved using a combination of clearance fit and elastic elements, giving the sealing head radial displacement compensation capability. Radial movement refers to the adjustment of the sealing head's position along a plane perpendicular to the driving direction of the drive mechanism. This can be achieved through the gap between the mounting plate hole wall and the sealing head sidewall, with the gap range controllable between 0.5 and 2 mm.

[0024] Specifically, when the drive mechanism moves the mounting plate toward the product interface, the sealing head can float freely radially within the mounting plate hole. When there is a positional deviation at the product interface, the sealing head automatically adjusts its radial position under the guidance of the interface, absorbing installation errors through clearance fit. The mounting plate, as a rigid carrier, ensures the effective transmission of driving force, while the floating connection structure allows the sealing head to self-align upon contact with the interface until the axis of the sealing head coincides with the axis of the interface, achieving an airtight connection.

[0025] Compared to existing technologies, traditional testing devices feature a rigid connection between the sealing head and the drive mechanism. When there are positional tolerances at the product interface, misalignment between the sealing head and the interface can easily occur, leading to air leakage or localized compression failure of the sealing ring. This solution, through a combination of a mounting plate and a floating connection, maintains the rigidity of the drive mechanism while providing the sealing head with radial self-adaptive capability, compensating for interface positional deviations without manual intervention. This application effectively solves the sealing failure problem caused by product placement deviations during simultaneous sealing of multiple interfaces, ensuring precise alignment between the sealing head and the interface and improving the reliability of the gas path connection. Simultaneously, this structure simplifies the debugging process of the testing device, avoiding repetitive adjustments due to interface positional tolerances, and significantly improving testing efficiency and automation levels.

[0026] See Figure 2 The gas distribution mechanism includes a first gas distribution mechanism 21, located below the U-shaped groove 12. The first gas distribution mechanism 21 includes a first sealing head 22 and a first driving mechanism. The output end of the first driving mechanism is provided with a first mounting plate 24, which has a hole. The first sealing head 22 is clearance-fitted into the hole of the first mounting plate 24. The first driving mechanism includes a first sliding plate 25 slidably disposed below the support structure 1 and a first cylinder 26 driving the first sliding plate 25 to rise and fall. The first cylinder 26 is mounted on the support structure 1, and the first mounting plate 24 is mounted on the first sliding plate 25. The first mounting plate 24 has a first hole penetrating its upper and lower end faces. The middle part of the first sealing head 22 is clearance-fitted with the inner wall of the first hole, forming a uniform annular gap. The first mounting plate 24 has an elastic ring on one end face connected to the first sealing head 22.

[0027] When the product is placed in the U-shaped groove 12 of the support structure 1, the first drive mechanism drives the first mounting plate 24 to move upward, bringing the first sealing head 22 closer to the air passage interface at the bottom of the product. Specifically, the first cylinder 26 pushes the first slide plate 25 upward, and the first slide plate 25 carries the first mounting plate 24 and the first sealing head 22 upward, thus sealing the air passage interface at the bottom of the product with the first sealing head 22. Since the first sealing head 22 and the first mounting plate 24 adopt a clearance fit, when there is an installation deviation in the product interface position, the sealing head can float radially within the hole, automatically compensating for the positional offset between the interface and the sealing head, ensuring accurate alignment between the sealing head and the interface. During the continuous pressure application by the drive mechanism, the sealing head contacts and compresses the sealing ring inside the interface, forming an airtight connection, thereby completing the air passage sealing.

[0028] See Figure 3The gas distribution mechanism includes a second gas distribution mechanism 31, located on the side of the U-shaped groove 12. The second gas distribution mechanism 31 includes a second sealing head 32 and a second driving mechanism. The output end of the second driving mechanism is provided with a second mounting plate 34, and the second sealing head 32 is clearance-fitted into a hole on the second mounting plate 34. The second driving mechanism includes a second mounting plate 34 on one side of the U-shaped groove 12, a push-pull cylinder 52 that drives the second mounting plate 34 to slide in the left-right direction, and a second cylinder 36 that drives the push-pull cylinder 52 to slide in the front-back direction. The second cylinder 36 is fixedly connected to the support structure 1. The second mounting plate 34 has a second mounting hole penetrating its front and rear end faces. The middle part of the second sealing head 32 is clearance-fitted with the inner wall of the second hole, forming a uniform annular gap.

[0029] When the second drive mechanism pushes the second mounting plate 34 towards the product's side interface, the second sealing head 32 can be radially fine-tuned under clearance fit conditions. Specifically: the push-pull cylinder 52 drives the second mounting plate 34 to slide left and right. Once the second sealing head 32 is aligned with the product's side interface, the push cylinder 35 stops moving, and the second cylinder 36 drives the push cylinder 35 to move forward and backward. The second mounting plate 34 carries the second sealing head 32 closer to the corresponding interface, thus sealing the air passage interface on the product's side. Because the second sealing head 32 and the second mounting plate 34 use a clearance fit, when there is an installation deviation in the product interface position, the sealing head can float radially within the hole, automatically compensating for the positional offset between the interface and the sealing head, ensuring accurate alignment between the sealing head and the interface. During the continuous pressure application by the drive mechanism, the sealing head contacts and compresses the sealing ring inside the interface, forming an airtight connection, thereby completing the air passage sealing.

[0030] Due to the product's shape, the second mounting plate 34 will interfere with the process of placing the product into the U-shaped groove 12 when it does not move in the left or right direction. Therefore, a pushing cylinder 35 is provided to work with the second cylinder 36 to move the second mounting plate 34 in two directions to avoid interference.

[0031] The above solution, through the gap fit design between the mounting plate and the sealing head, enables the sealing head to be self-adaptive, automatically adjusting its position during the driving process. It can achieve precise alignment without manual intervention, effectively solving the problem of incomplete sealing of the air passage interface caused by product installation deviation, improving the reliability of air tightness testing, and avoiding the decrease in testing efficiency caused by manual adjustment of alignment. It is suitable for the automated testing needs of different batches of products.

[0032] The product's interface has a sealing ring. When the sealing head is connected to the product interface, the sealing ring is compressed by the sealing head to seal the air passage.

[0033] The sealing ring refers to an annular elastic element installed inside the product interface, specifically made of nitrile rubber or fluororubber. It fills the gap between the sealing head and the interface through compression deformation. The sealing head compression sealing ring refers to the sealing head end being designed with a conical or stepped structure. When the sealing head moves axially and is inserted into the product interface, the sealing ring deforms simultaneously under radial and axial forces, forming an annular sealing surface.

[0034] Specifically, when the drive mechanism moves the sealing head towards the product interface, the end of the sealing head first contacts the sealing ring. As the axial pressure increases, the sealing ring expands radially and tightly adheres to the inner wall of the interface. During this process, the elastic deformation of the sealing ring is controlled within the material's yield limit, ensuring sealing reliability while preventing permanent damage. Gas path closure is achieved through the contact stress generated by the pressure on the sealing ring, which is evenly distributed across the contact area between the interface and the sealing head.

[0035] This solution, through the synergistic action of an elastic sealing ring and a floating connection plug, allows for a certain degree of positional or angular deviation at the interface. It automatically compensates for assembly errors during plug insertion and eliminates the risk of leakage caused by differences in interface surface roughness. This solves the technical problem of insufficient reliability in multi-interface plugging, ensuring that the sealing ring is uniformly pressurized to form an effective seal during gas path connection, avoiding air leakage due to interface positional deviations, and improving the accuracy of pressure detection data. This sealing structure can adapt to product interfaces with different dimensional tolerances, reducing reliance on the positioning accuracy of the testing device and minimizing manual adjustments.

[0036] See Figures 4-5 The power distribution mechanism 4 also includes a probe holder 42, with a probe 41 mounted on one side of the probe holder 42. The probe holder 42 is floatingly connected to the output end of the third drive mechanism, enabling the probe 41 to match the product position and connect. The third drive mechanism includes a base plate 44 fixedly connected to the support structure 1 and a third cylinder 5245 that drives the base plate 44 to slide in the front-back direction. The probe holder 42 is floatingly connected to the base plate 44.

[0037] When the third drive mechanism moves the probe holder 42 toward the product, the floating connection allows the probe holder 42 to make small displacements in the horizontal or vertical directions. When there is an alignment error between the probe 41 and the electrical interface of the product, the probe holder 42 can adaptively adjust its position to ensure that the contacts of the probe 41 are in close contact with the conductive area of ​​the interface. For example, when the interface of the product is offset due to assembly tolerances, the probe holder 42 slides along the offset direction under the guidance of the floating connection, preventing the probe 41 from bending or breaking due to rigid contact, while ensuring the stability of electrical signal transmission.

[0038] The above technical solution solves the problem of unstable electrical signal transmission caused by misalignment between probe 41 and product interface in existing detection devices, improves the automation level and detection efficiency of power distribution process, and reduces the wear and tear caused by rigid contact of probe 41, thus extending the service life of detection device.

[0039] The exhaust connector 62 has a through air passage inside. One end of the through air passage is connected to the pressure sensor 61, and the other end of the through air passage is provided with an exhaust connector, which is connected to the product's exhaust port.

[0040] The exhaust detection mechanism 6 also includes: a slider plate 63 slidably connected to the support structure 1; a spring rod fixing plate 64 connected to one side of the slider plate 63; a spring rod 65 provided on the spring rod fixing plate 64; a spring 66 sleeved on the spring rod 65; the length of the spring 66 is greater than the length of the spring rod 65; the spring 66 connects the fixing plate 11 and the spring rod fixing plate 64; a pressure plate 67 is provided on the bottom plate 44; the exhaust plug 62 and the spring rod fixing plate 64 are located on both sides of the fixing plate 11; and the pressure plate is located on the side of the spring rod fixing plate 64 away from the fixing plate 11.

[0041] Before the product is installed in the U-shaped groove 12, the third cylinder 45 pushes the base plate 44 to keep the probe seat 42 at a certain distance from the fixed plate 11. At the same time, the base plate 44 pushes the spring rod fixed plate 54 through the pressure plate 67 to move the exhaust plug 62 away from the fixed plate 11, so as to avoid interference during the process of the product being stuck in the U-shaped groove 12. At this time, the spring 66 is compressed. After the product is placed in the U-shaped groove 12, the third cylinder 45 drives the base plate 44 to carry the probe 41 to connect with the product's electrical interface. During this process, the pressure plate 67 moves away from the fixed plate 11, and the spring 66 is released to move the spring rod fixed plate 64 away from the fixed plate 11, so that the exhaust plug 62 on the other side of the fixed plate 11 is close to the fixed plate 11, so that the exhaust interface of the exhaust plug 62 is tightly connected with the product's exhaust port.

[0042] In the above scheme, by utilizing the positional relationship between the third drive mechanism and the exhaust plug 62, and the reset capability of the spring 66, the power distribution mechanism 4 simultaneously drives the exhaust detection mechanism 6 to perform release and connection detection actions with the product when performing release and connection detection actions. During the connection action, the third drive mechanism does not need to carry the exhaust plug and pressure sensor 61 for displacement; instead, it automatically resets through the deformation of the spring 66, achieving connection between the exhaust connector and the product's exhaust interface. Furthermore, the pre-tightening of the spring 66 after reset ensures a tight connection between the exhaust connector and the product's exhaust interface. This scheme achieves displacement and tight connection of the exhaust detection mechanism 6 while reducing the number of drive mechanisms, thus lowering manufacturing costs, saving space, simplifying product performance testing procedures, improving testing efficiency, and reducing the complexity of controlling the drive mechanism. Simultaneously, the exhaust plug 62 is not rigidly connected to the base plate 44; instead, displacement is achieved through the thrust of the pressure plate 67 combined with the pressing and releasing of the spring 66, reducing the drive load on the third cylinder 45.

[0043] See Figure 6 The pressing mechanism 5 includes: a connecting rod 51, hinged to the support structure 1; a cylinder 52, the cylinder body of which is hinged to the support structure 1, and its piston rod and connecting rod 51 are rotatably connected to the same rotating rod 53. The connecting rod 51 swings around the rotating rod 53 as a fulcrum, and a pressure plate 54 is movably connected to the upper part of the connecting rod 51. When the piston rod of the cylinder 52 retracts, it pulls the connecting rod 51 back to swing around the hinge point of the support structure 1 toward the side where the product is located via the rotating rod 53, causing the pressure plate 54 to move toward the product surface and apply a pressing force. Because the cylinder body of the cylinder 52 is hinged to the support structure 1, and the piston rod and connecting rod 51 form a rotating pair through the rotating rod 53, the pressure plate 54 can adaptively adjust its angle when contacting the product, avoiding excessive local pressure due to product placement deviation. The movable connection between the pressure plate 54 and the connecting rod 51 allows the pressure plate 54 to produce a small displacement when contacting the product, further compensating for product position errors.

[0044] The above technical solution achieves flexible clamping of the product, effectively preventing interface sealing failure or product surface damage caused by uneven clamping force. The adaptive adjustment capability of the pressure plate 54 enhances the compatibility of the clamping mechanism 5 with products of different sizes or positional tolerances, ensuring the stability of the air and electrical connections during testing, thereby improving the consistency of test results.

[0045] An elastic buffer layer 55 is provided on the side of the pressure plate 54 that contacts the product. The elastic buffer layer 55 is made of silicone and is used to prevent the product surface from being scratched or deformed during the pressing process.

[0046] The support structure 1 includes a vertically arranged fixed plate 11, a U-shaped groove 12 located at the upper end of the fixed plate 11, a support plate 13 at the bottom of the U-shaped groove 12, and a positioning pin 14 on the side of the fixed plate 11 that is in contact with the product.

[0047] The support structure 1 also includes a tooling plate 15 horizontally disposed at the bottom of the fixed plate 11. The tooling plate 15 has a receiving opening for accommodating the first air distribution mechanism 21.

[0048] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A suspension air supply module performance testing device, comprising: The product has multiple interfaces and is characterized by: It also includes: The support structure (1) has a U-shaped groove (12) for supporting the product; A clamping mechanism (5) is used to clamp the product on the support structure (1); The gas distribution mechanism, whose position and number correspond to the product's interface, includes a sealing head and a driving mechanism. The sealing head is connected to the corresponding product interface through the driving mechanism to achieve gas distribution. The power distribution mechanism (4) includes a probe (41) and a third drive mechanism, wherein the probe (41) is connected to the product through the third drive mechanism to achieve power distribution; The exhaust detection mechanism (6) includes a pressure sensor (61) and an exhaust connector (62). When the product is pressed, the exhaust connector (62) is connected to the product and the exhaust is detected by the pressure sensor (61).

2. The suspension air supply module performance testing device according to claim 1, characterized in that: The gas distribution mechanism also includes a mounting plate. The output end of the drive mechanism is connected to the plugging head through the mounting plate. The mounting plate has holes, and the plugging head is floating within the holes, allowing the plugging head to move radially within the holes to match the interface position and connect.

3. The suspension air supply module performance testing device according to claim 1, characterized in that: The gas distribution mechanism includes: a first gas distribution mechanism (21), which is located below the U-shaped groove. It includes a first sealing head (22) and a first driving mechanism. The output end of the first driving mechanism is provided with a first mounting plate (24). The first mounting plate (24) has a hole, and the first sealing head (22) is clearance-fitted in the hole of the first mounting plate (24).

4. The suspension air supply module performance testing device according to claim 1, characterized in that: The gas distribution mechanism includes a second gas distribution mechanism (31), which is located on the side of the U-shaped groove. It includes a second sealing head (32) and a second driving mechanism. The output end of the second driving mechanism is provided with a second mounting plate (34), and the second sealing head (32) is in clearance fit with the hole on the second mounting plate (34).

5. The suspension air supply module performance testing device according to claim 1, characterized in that: The product's interface has a sealing ring. When the sealing head is connected to the product interface, the sealing ring is compressed by the sealing head to achieve air circuit sealing.

6. The suspension air supply module performance testing device according to claim 1, characterized in that: The power distribution mechanism (4) also includes a probe holder (42), and the probe (41) is mounted on one side of the probe holder (42). The probe holder (42) is floatingly connected to the output end of the third drive mechanism, so that the probe (41) can match the product position and connect.

7. The suspension air supply module performance testing device according to claim 1, characterized in that: The exhaust connector (62) has a through air passage inside. One end of the through air passage is connected to the pressure sensor (61), and the other end of the through air passage has an exhaust port. The exhaust port is connected to the product exhaust port.

8. The suspension air supply module performance testing device according to claim 1, characterized in that: The pressing mechanism (5) includes: a connecting rod (51) hinged to the support structure (1); a push-pull cylinder (52) whose cylinder body is hinged to the support structure (1), whose piston rod is rotatably connected to the connecting rod (51) with the same rotating rod (53), the connecting rod (51) swinging around the rotating rod (53) as a fulcrum, and a pressure plate (54) movably connected to the upper part of the connecting rod (51).

9. A suspension air supply module performance testing device according to claim 8, characterized in that: The pressure plate (54) has an elastic buffer layer (55) on the side that contacts the product. The elastic buffer layer (55) is made of silicone and is used to prevent the product surface from being scratched or deformed during the pressing process.

10. The suspension air supply module performance testing device according to claim 1, characterized in that: The support structure (1) includes a vertically arranged fixed plate (11), the U-shaped groove is located at the upper end of the fixed plate (11), the bottom of the U-shaped groove (12) is provided with a support plate (13), and the fixed plate (11) is provided with a positioning pin (14) on the side that is pressed against the product.

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