Suspension air supply module valve body assembly seal test device

Abstract

The utility model discloses a kind of suspension air supply module valve body assembly sealing test devices, belong to technical field, the sealing test device includes: product, with internal flow passage, with outer end face in side and bottom, each outer end face is equipped with the interface of intercommunication flow passage, it is characterized by: it further includes: support assembly, for carrying and fixed product;Clamping assembly is set, corresponding product's outer end face, including block and drive assembly, drive assembly drives block to be close to product, to block the interface on corresponding outer end face;Detection assembly, including actuating mechanism and control module, actuating mechanism drive control module is cooperated with product, to switch internal flow passage;Jacking assembly, be below support assembly, for with product lower end surface interface connection and ventilation.The utility model is clamped by controlling multiple clamping assemblies with product as center, eliminates the problem that sealing failure is caused by abrasion and displacement of clamping force.

Description

Technical Field

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

[0002] With the increasing demand for intelligent and comfortable vehicles, air suspension systems are widely used in high-end passenger and commercial vehicles. The Air Supply Unit (ASU), as the core control component of the air suspension, functions by distributing and regulating compressed air through internal flow channel switching, directly affecting key performance aspects such as suspension height and stiffness adjustment. The ASU valve body assembly, as the core actuator of the module, consists of multiple precision-machined valve bodies, solenoid valves, and sealing structures. The sealing performance of its internal flow channels and external end face interfaces is a key indicator determining the module's reliability.

[0003] Currently, sealing tests for ASU valve body assemblies mainly rely on traditional multi-station segmented testing or manually assisted sealing devices. However, these methods have the following technical drawbacks: First, ASU valve body assemblies typically have multiple external end faces, each with a test interface connected to the internal flow channel. Traditional devices struggle to simultaneously and accurately seal interfaces in multiple directions, such as horizontal and vertical, leading to leaks due to incomplete sealing and affecting data accuracy. Second, existing devices often use fixed clamps with manual adjustment to position the sealing block, failing to automatically adjust the sealing position based on the size differences of different valve body models, resulting in poor test compatibility and low efficiency. Third, while some automated testing equipment incorporates drive mechanisms, the drive logic is fragmented and lacks coordinated timing control, easily leading to misaligned sealing sequences, causing damage to the valve body surface or interface deformation.

[0004] Therefore, there is an urgent need for a sealing test device that can achieve multi-directional synchronous sealing, adaptive adjustment of sealing position, and collaborative control function to meet the high-precision and high-efficiency sealing test requirements of ASU valve body components. Summary of the Invention

[0005] The purpose of this application is to provide a sealing test device for a suspension air supply module valve body assembly, as well as its support assembly, clamping assembly, and testing assembly, which has the advantages of improving sealing test accuracy, preventing product displacement and wear, and preventing clamping damage.

[0006] This application provides a suspension air supply module valve body assembly sealing test device, the technical solution of which is as follows: It includes a product having an internal flow channel, and outer end faces on both the side and bottom, each outer end face having an interface communicating with the flow channel; its characteristic is that it further includes: Support components are used to support and secure the product; The clamping component is set on the outer end face of the product, including a block and a driving component. The driving component drives the block to approach the product to block the interface on the corresponding outer end face. The detection component includes an actuator and a control module. The actuator drives the control module to work with the product to switch internal flow channels. The lifting component, located below the support component, is used to connect to and ventilate the interface on the lower end face of the product.

[0007] Preferably, this application also proposes that the support component includes: a support platform; and a positioning structure disposed on the support platform and adapted to the outer contour of the product to limit the displacement of the product in the vertical and horizontal directions.

[0008] Preferably, this application also proposes that there are at least two sets of clamping components, which are respectively set for different outer end faces of the product side. Each set of clamping components includes a blocking block and a top block. The fixed blocking block and the movable top block are arranged opposite to each other along the same axis. The clamping component also includes a slide table. The top block is movably connected to the slide table, and the top blocking block is fixedly connected to the slide table.

[0009] Preferably, this application also proposes that the driving mechanism of each clamping assembly includes: a slide driving unit for driving the slide to slide along the support assembly to adjust the distance between the fixed sealing block and the outer end face of the product; and a top block driving unit for driving the top block to move closer to or away from the product along the sliding direction of the slide.

[0010] Preferably, this application also proposes that the sealing block has a sealing element on the side near the product. The sealing element is an O-ring or an elastic rubber gasket. The shape of the sealing element matches the peripheral contour of the interface on the outer end face of the product to enhance the sealing performance during sealing.

[0011] Preferably, this application also proposes that the actuator of the detection component is a lifting electric cylinder or a pneumatic slide, and the output end of the actuator is connected to the control module to drive the control module to move closer to or away from the product in a vertical direction; the control module includes an electrical connection interface or an electromagnetic induction unit, and the electrical connection interface or electromagnetic induction unit is matched with the signal of the product's flow channel switching device.

[0012] Preferably, this application also proposes that the slide of the clamping assembly is connected to the support assembly via a guide rail pair, the guide rail pair including a sliding rail and a slider that cooperate with each other, the sliding rail being fixed to the support assembly, and the slider being fixedly connected to the bottom of the slide to limit the sliding direction of the slide.

[0013] Preferably, this application also proposes that a buffer layer is provided on the side of the top block near the product. The buffer layer is made of polyurethane or silicone and has a thickness of 1 to 3 mm, in order to prevent damage to the surface of the product when the top block clamps the product.

[0014] Preferably, this application also proposes that the drive mechanism is electrically connected to the control module, and the control module can independently control the action timing of the slide drive unit and the top block drive unit of each clamping assembly to achieve coordinated blocking of multiple clamping assemblies.

[0015] Preferably, this application also proposes that the clamping assembly on the outer end face of the bottom of the product is a vertical clamping assembly, and the driving mechanism of the vertical clamping assembly includes a lifting cylinder, which is fixed to the bottom of the support assembly and its output end is connected to the bottom block for driving the bottom block to rise and fall vertically to block the bottom interface of the product.

[0016] As can be seen from the above, the suspension air supply module valve body assembly sealing test device and its support assembly, clamping assembly and testing assembly provided in this application, use the support assembly to position and fix the product in multiple directions, and combine the adjustable clamping assembly to seal the interface in a coordinated manner. At the same time, the buffer protection measures are adopted to avoid surface damage, which effectively solves the problem of sealing failure caused by product displacement in traditional testing, and has the advantages of improving test accuracy and product protection performance. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the suspension air supply module valve body assembly sealing test device of this application; Figure 2 This is a frontal view of the sealing test device. Figure 3 This is a top view of the sealing test device; Figure 4 This is a schematic diagram of the first clamping assembly structure; Figure 5 This is a schematic diagram of the second clamping assembly structure; Figure 6 This is a schematic diagram of the lifting component structure.

[0018] Reference numerals: Tooling plate 1; Slide connecting plate 11; Support assembly 2; Bearing platform 21; Positioning structure 22; First slide 31; First base plate 311; First upright plate 312; First sealing block 32; First top block 33; First slide drive unit 34; First top block drive unit 35; Second slide 41; Second base plate 411; Second upright plate 412; Second sealing block 42; Second top block 43; Second slide drive unit 44; Second top block drive unit 45; Detection assembly 5; Third slide 51; Pressure plate 52; Coil fixing plate 53; Coil 54; Lifting assembly 6; First sealing head 61; Lifting cylinder 62; Second sealing head 63; Spring 64. Detailed Implementation

[0019] 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.

[0020] See Figures 1-3 This application provides a sealing test device for a suspension air supply module valve body assembly. The technical solution is as follows: It includes a product with an internal flow channel and outer end faces on the side and bottom, each outer end face having an interface connecting to the flow channel; it also includes a tooling plate 1; a support assembly 2 for supporting and fixing the product, fixed to the tooling plate 1; a clamping assembly corresponding to the outer end face of the product, including a block and a driving assembly, the driving assembly driving the block closer to the product to seal the interface on the corresponding outer end face; and a detection assembly 5 including an actuator and a control module, the actuator driving the control module to cooperate with the product to switch the internal flow channel. The support assembly 2 has a lifting assembly 6 for sealing the lower end face of the product. The detection assembly 5 is mounted above the support assembly 2 and can slide relative to the tooling plate 1.

[0021] Among them, support component 2 refers to the rigid structure that supports the product under test, and its function is to physically constrain the product's degrees of freedom in three-dimensional space. The block in the clamping component refers to the sealing component that directly contacts the outer end face of the product, used to accurately align the interface position and perform sealing. The drive component refers to the power output device, which can be a linear module driven by a servo motor to ensure precise control of the block's movement. The actuator of detection component 5 refers to the flow channel switching drive device, which can use an electric push rod in conjunction with a position sensor to accurately control the opening and closing state of the flow channel valve.

[0022] The support component 2 includes: a support platform 21; and a positioning structure 22, which is disposed on the support platform 21 and adapted to the outer contour of the product, for limiting the displacement of the product in the horizontal and vertical directions.

[0023] The support platform 21 refers to the platform structure used to place and support the product. It can be implemented using a metal frame or a high-strength plastic base to provide stable foundation support for the product. The positioning structure 22 refers to the limiting component that matches the external shape of the product. It can be implemented using a groove with a concave-convex fit or an adjustable clamp. In this embodiment, a positioning pin is used to cooperate with the groove on the bottom of the product to achieve the product's freedom of movement in the horizontal and vertical directions.

[0024] Traditional clamping methods rely on clamping force to fix the product. During clamping, the product is prone to sliding relative to the bearing surface due to multi-directional force application, causing surface wear and affecting the sealing effect. This application, through the adaptation of the positioning structure 22 to the outer contour of the product, pre-limits displacement before clamping, eliminating the risk of displacement caused by uneven force during clamping, avoiding sealing failure due to sliding wear, and effectively improving the accuracy of test results.

[0025] There are at least two sets of clamping components, which are respectively set for different outer end faces of the product. Each set of clamping components includes a blocking block and a top block. The fixed blocking block and the movable top block are arranged opposite each other along the same axis. The clamping component also includes a slide table. The top block is movably connected to the slide table, and the blocking block is fixedly connected to the slide table.

[0026] The driving mechanism of each clamping assembly includes: a slide drive unit for driving the slide to slide along the support assembly 2 to adjust the distance between the fixed sealing block and the outer end face of the product; and a top block drive unit for driving the top block to move closer to or away from the product along the sliding direction of the slide.

[0027] See appendix Figures 4-5 The clamping assembly is divided into a first clamping assembly and a second clamping assembly, wherein: The first clamping assembly includes a first slide 31. The block of the first clamping assembly includes a first sealing block 32 and a first top block 33. The first sealing block 32 and the first top block 33 are arranged at intervals in the front-back direction. The support platform 21 is located between the first sealing block 32 and the first top block 33. The driving mechanism of the first clamping assembly includes a first slide driving unit 34 and a first top block driving unit 35. The first slide driving unit 34 is used to drive the first slide 31 to slide along the front-back direction of the tooling plate 1. The first top block driving unit 35 is used to drive the first top block 33 to approach the first sealing block 32.

[0028] It should be noted that: the first slide drive unit 34 refers to a functional module that integrates a guide mechanism and a linear drive mechanism. Its function is to provide the first slide 31 with controllable linear movement capability and constrain its linear displacement in the front-back direction; the first top block drive unit 35 refers to a functional module that can realize the displacement of the first top block 33 in the front-back direction, including but not limited to a cylinder.

[0029] The first slide 31 includes a first base plate 311, which is horizontally set on the tooling plate 1. Two first upright plates 312 are vertically set on the upper end of the first base plate 311. The support platform 21 is located between the two first upright plates 312. The first sealing block 32 is installed on one of the first upright plates 312 near the support platform 21. The first top block 33 is located on the other first upright plate 312 near the support platform 21.

[0030] The second clamping assembly includes a second slide 41, and the blocks of the second clamping assembly include a second blocking block 42 and a second top block 43. The second blocking block 42 and the second top block 43 are arranged at intervals in the left and right direction. The support platform 21 is located between the second blocking block 42 and the second top block 43. The driving mechanism of the second clamping assembly includes a second slide driving unit 44 and a second top block driving unit 45. The second slide driving unit 44 is used to drive the second slide 41 to slide in the left and right direction along the tooling plate 1, and the second top block driving unit 45 is used to drive the second top block 43 to approach the second blocking block 42.

[0031] It should be noted that: the second slide drive unit 44 refers to a functional module that integrates a guide mechanism and a linear drive mechanism. Its function is to provide controllable linear movement capability for the second slide 41 and constrain its linear displacement along the left and right directions; the second top block drive unit 45 refers to a functional module that can realize the displacement of the second top block 43 along the left and right directions, including but not limited to cylinders.

[0032] The second slide 41 includes a second base plate 411. A slide connecting plate 11 is vertically arranged on the tooling plate 1. The second base plate 411 is slidably arranged on the side of the slide connecting plate 11 near the support platform 21. Two second upright plates 412 are horizontally arranged on the side of the second base plate 411 near the support platform 21. The support platform 21 is located between the two second upright plates 412. A second sealing block 42 is installed on the side of one of the second upright plates 412 near the support platform 21. A second top block 43 is located on the side of the other second upright plate 412 near the support platform 21.

[0033] The detection component 5 includes a third slide 51 and a third slide drive unit. The third slide 51 is horizontally set on the tooling plate 1. The third slide 51 slides along the front and back direction of the tooling plate 1 through the third slide drive unit. The third slide 51 is a support, and a pressure plate 52 is provided on its top. The pressure plate 52 is located above the support platform 21. A coil fixing plate 53 is provided below the pressure plate 52 and is connected to a drive component. The drive component includes, but is not limited to, a cylinder. Multiple coils 54 are provided on the coil fixing plate 53. Multiple solenoid valves extend from the upper end of the product. The drive component drives the coil fixing plate 53 to move down so that the coils 54 cooperate with the solenoid valves. The coils 54 control the solenoid valves to open and close the internal flow channels of the product.

[0034] It should be noted that the third slide drive unit includes, but is not limited to, the cylinder that pushes the third slide 51 to slide linearly.

[0035] See Figure 6 The lifting assembly 6 includes a lifting cylinder 62, which is fixed to the bottom of the support assembly 2. Its output end is connected to the bottom block and is used to drive the bottom block to rise and fall vertically to block the bottom interface of the product.

[0036] The lifting assembly 6 also includes a first sealing head 61, and a lifting cylinder 62 for driving the first sealing head 61 to rise to connect to the interface on the lower end face of the product.

[0037] The support platform 21 is connected to a fixed plate below by a stiffener. The lifting cylinder 62 is installed on the upper part of the fixed plate. The lifting assembly 6 also includes a second sealing head 63 and a spring 64. The second sealing head 63 is located above the fixed plate. The bottom of the second sealing head 63 is connected to the fixed plate by the spring 64. The lower end face of the product has a vent. The spring 64 prevents the second sealing head 63 from being tightly connected to the lower end face of the product by the interface of the first sealing head 61, so as to facilitate air passage to the product through the lifting assembly 6.

[0038] The working sequence is as follows: First, after the product is placed on the support platform 21, the spring 64 is compressed to pre-tighten the second sealing head 63 to the vent. Then, the third slide 51 drive mechanism drives the slide to slide along the tooling plate 1 to a designated position above the support platform 21. At this point, the cylinder on the pressure plate 52 drives the coil fixing plate 53 to move downwards, connecting the coil 54 to the solenoid valve. Simultaneously, the coil fixing plate 53 presses the product firmly onto the support platform 21. The first slide drive unit 34 drives the first slide 31 to seal the front end interface of the product with the first sealing block 32. Simultaneously, the second slide drive... Unit 44, the first top block drive unit 35, and the second top block drive unit 45 respectively drive the second slide 41, the first top block 33, and the second top block 43 to approach the product, thereby achieving the sealing and clamping of the second sealing block 42, the first top block 33, and the second top block 43 on the right end face, the rear end face, and the left end face of the product; finally, the lifting cylinder 62 drives the first sealing head 61 to seal the interface on the lower end face of the product, thereby achieving interface sealing on each end face of the product; the coil 54 controls the solenoid valve to achieve the switching and opening / closing of the internal flow channel of the product, thereby achieving product sealing detection.

[0039] In the above technical solution, since the sealing block is fixedly connected to the slide, its movement trajectory is synchronized with the slide, avoiding lateral displacement caused by clamping direction deviation. The bidirectional pressure from the sealing block and the top block forms a symmetrical clamping of the product, offsetting the displacement tendency caused by unilateral pressure. The overall movement path of the slide is limited to a single axial direction, so that the product only bears positive pressure along this axis during clamping, eliminating sliding friction caused by the superposition of clamping forces in multiple directions.

[0040] Compared to existing technologies, clamping assemblies typically employ a single-sided pressure application or an independently driven multi-clamp structure, which can easily generate lateral forces during clamping, leading to sliding wear of the product on the support surface. This solution, however, utilizes a bidirectional pressure application structure on the same axis, concentrating and balancing the clamping forces. Simultaneously, the sliding table movement achieves staged positioning and sealing, avoiding displacement problems caused by multi-directional clamping force coupling.

[0041] Through the above technical solution, this application effectively prevents the product from sliding displacement caused by lateral force during clamping, ensures that the seals of each external end face interface and the product contact surface always maintain a stable fit, and solves the problem of incomplete sealing or leakage during multi-directional clamping.

[0042] The slide drive unit first drives the slide to slide along the support component 2 to a preset position, creating an initial appropriate gap between the fixed sealing block and the outer end face of the product. Then, the top block drive unit drives the top block to move along the sliding direction of the slide, pushing the product towards the fixed sealing block until the interface is fully engaged. This phased action, by establishing a clamping reference surface before applying clamping force, avoids the lateral forces generated when multiple clamping components operate simultaneously, ensuring that the product does not shift or slide during clamping.

[0043] In traditional clamping devices, the simultaneous operation of multiple clamping units generates combined forces, causing product displacement and wear on the clamping surface. This solution, however, utilizes a phased driving mechanism. First, the slide drive unit determines the clamping reference, and then the top block drive unit applies a unidirectional clamping force, eliminating multi-directional force coupling and fundamentally preventing product displacement.

[0044] Through the above technical solution, this application solves the problem of product displacement and wear caused by the uncoordinated action sequence when multiple clamping components work together to clamp, ensuring that each interface maintains stable contact during the clamping process and effectively improving the accuracy of the sealing test.

[0045] The sealing block has a seal on the side closest to the product. The seal is an O-ring or an elastic rubber gasket. The shape of the seal matches the periphery of the interface on the outer end face of the product to enhance the sealing performance during sealing.

[0046] When the clamping assembly drives the sealing block to press against the outer end face of the product, the circular cross-section of the O-ring expands radially under pressure, filling the grooves or gaps at the edge of the interface; the elastic rubber gasket conforms to the planar or curved surface structure around the interface through compression in the thickness direction. Both seals adapt to the dimensional tolerances of different interfaces through material elasticity, maintaining sealing pressure while avoiding indentations on the product surface.

[0047] The structure of the aforementioned seal ensures that the sealing contact area completely overlaps with the periphery of the interface, while utilizing the properties of elastic materials to compensate for assembly errors, thus avoiding leakage paths caused by shape deviations in traditional solutions.

[0048] The actuator of the detection component 5 is a lifting electric cylinder or a pneumatic slide. The output end of the actuator is connected to the control module to drive the control module to move closer to or away from the product in a vertical direction. The control module includes an electrical connection interface or an electromagnetic induction unit, which is matched with the signal of the product's flow channel switching device.

[0049] The slide of the clamping assembly is connected to the support assembly 2 via a guide rail pair. The guide rail pair includes a sliding rail and a slider that cooperate with each other. The sliding rail is fixed to the support assembly 2, and the slider is fixedly connected to the bottom of the slide to limit the sliding direction of the slide.

[0050] A buffer layer is provided on the side of the top block closest to the product. The buffer layer is made of polyurethane or silicone and has a thickness of 1 to 3 mm. It is used to prevent damage to the surface of the product when the top block clamps it.

[0051] The drive mechanism is electrically connected to the control module. The control module can independently control the timing of the movement of the slide drive unit and the top block drive unit of each clamping assembly, so as to achieve coordinated blocking of multiple clamping assemblies.

[0052] 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 valve body assembly sealing test device, comprising: The product has an internal flow channel and outer end faces on the sides and top and bottom, each outer end face having an interface connecting to the flow channel. Its distinguishing feature is that it further includes: Support component (2) is used to support and fix the product; A clamping assembly is provided on the outer side of the product and includes a block and a driving assembly. The driving assembly drives the block to approach the product to block the interface on the corresponding outer side. The detection component (5) includes an actuator and a control module, wherein the actuator drives the control module to cooperate with the outer end face above the product to switch the internal flow channel; The lifting component (6) is located below the support component (2) and is used to connect to the interface on the lower outer end face of the product and allow air to pass through.

2. The suspension air supply module valve body assembly sealing test device according to claim 1, characterized in that: The support component (2) includes: a support platform (21); and a positioning structure (22) disposed on the support platform (21) and adapted to the outer contour of the product to limit the displacement of the product in the horizontal and vertical directions.

3. The suspension air supply module valve body assembly sealing test device according to claim 1, characterized in that: The clamping assembly has at least two sets, which are respectively set on different outer end faces of the product. Each set of clamping assembly blocks includes a blocking block and a top block arranged opposite each other along the same axis. The clamping assembly also includes a slide table. The top block is movably connected to the slide table, and the blocking block is fixedly connected to the slide table.

4. The suspension air supply module valve body assembly sealing test device according to claim 3, characterized in that: The driving assembly of each clamping assembly includes: a slide driving unit for driving the slide to slide along the support assembly to adjust the distance between the sealing block and the outer end face of the product; and a top block driving unit for driving the top block to move closer to or further away from the product along the sliding direction of the slide.

5. A suspension air supply module valve body assembly sealing test device according to claim 3, characterized in that: The sealing block has a sealing element on the side near the product. The sealing element is an O-ring or an elastic rubber gasket. The shape of the sealing element matches the peripheral contour of the interface on the outer end face of the product to enhance the sealing performance during sealing.

6. The suspension air supply module valve body assembly sealing test device according to claim 3, characterized in that: The top block has a buffer layer on the side closest to the product. The buffer layer is made of polyurethane or silicone and has a thickness of 1 to 3 mm. It is used to prevent damage to the surface of the product when the top block clamps it.

7. A suspension air supply module valve body assembly sealing test device according to claim 1, characterized in that: The actuator of the detection component is a lifting electric cylinder or a pneumatic slide. The output end of the actuator is connected to the control module and is used to drive the control module to move closer to or away from the product in a vertical direction. The control module includes an electrical connection interface or an electromagnetic induction unit, and the electrical connection interface or electromagnetic induction unit is matched with the signal of the product's flow channel switching device.

8. A suspension air supply module valve body assembly sealing test device according to claim 1, characterized in that: The clamping assembly's slide table is connected to the support assembly via a guide rail pair. The guide rail pair includes a sliding rail and a slider that cooperate with each other. The sliding rail is fixed to the support assembly, and the slider is fixedly connected to the bottom of the slide table to limit the sliding direction of the slide table.

9. A suspension air supply module valve body assembly sealing test device according to claim 4, characterized in that: The drive assembly is electrically connected to the control module, which can independently control the timing of the movement of the slide drive unit and the top block drive unit of each clamping assembly, thereby achieving coordinated blocking of multiple clamping assemblies.

10. A suspension air supply module valve body assembly sealing test device according to claim 1, characterized in that: The lifting assembly (6) includes a lifting cylinder (62), which is fixed to the bottom of the support assembly (2). Its output end is connected to the bottom block and is used to drive the bottom block to rise and fall vertically to block the bottom interface of the product.

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