Integrated shock absorber assembly rapid airtightness leak detection tool

Abstract

This invention belongs to the technical field of airtightness testing equipment, specifically relating to a rapid leak detection fixture for an integrated shock absorber assembly. The fixture includes a base with a mounting groove at its bottom and a first sealing ring. A rotatable sealing cylinder is connected to the base via a cylinder-driven output shaft. A second sealing ring is located at the lower end of the sealing cylinder. A spiral groove is formed on the outer surface of the sealing cylinder, which, in conjunction with ball bearings within the through-hole of a plate, rotates synchronously during lifting and lowering. This causes the second sealing ring to rub against the upper surface of the shock absorber, resulting in sufficient deformation. Simultaneously, it causes the lower end of the shock absorber to be squeezed and twisted against the first sealing ring, forming a synchronously reinforced sealing structure at both ends. This invention uses rotational friction to change the sealing ring from a close fit to a fully compressed seal, eliminating microscopic gaps and improving the accuracy and stability of airtightness testing. It also achieves automatic demolding and adjustable sealing force, offering advantages such as high testing efficiency, simple structure, low wear, long service life, and suitability for mass production testing.

Description

Technical Field

[0001] This invention belongs to the technical field of airtightness testing equipment, specifically relating to a rapid leak detection tool for an integrated shock absorber assembly. Background Technology

[0002] An integrated shock absorber assembly is a core component of a car's suspension system. It is not a single "shock absorber," but a complete functional unit integrating multiple components. It absorbs road impacts, suppresses vehicle vibrations, maintains tire contact with the road, and improves driving stability and ride comfort. According to authoritative publicly available information, an integrated shock absorber assembly typically includes the following key components: Shock absorber body (hydraulic damper): The core component, which converts kinetic energy into heat energy through the flow of oil to achieve shock absorption.

[0003] Helical springs: provide elastic support and buffer vertical impacts.

[0004] Upper bracket / top mount: Connects to the vehicle body, transmits force, and isolates high-frequency vibrations.

[0005] Lower spring pad, upper spring pad, shock-absorbing pad: reduce impact and abnormal noise between components.

[0006] Spring seat: Supports the spring and positions it for installation.

[0007] Bearings: allow the front shock absorber assembly to rotate during steering (especially the front wheels).

[0008] Dust cover: Protects the internal structure from dust and mud.

[0009] Buffer block: Limits travel and prevents hard collisions.

[0010] Nuts and mounting brackets: Secure the assembly to the frame or subframe.

[0011] The component combinations may vary slightly depending on the vehicle model (such as front-wheel drive / rear-wheel drive, MacPherson / multi-link suspension), but the above are common configurations; By integrating the design, shock absorbers and other components such as springs are pre-assembled into a module, facilitating quick replacement.

[0012] Partially compatible: Available in four versions: front left, front right, rear left, and rear right. Due to differences in the support structure, spring stiffness, and damping adjustment of each part, they cannot be mixed and matched. This can improve driving performance, suppress the "clunking" sound and body bounce when going over bumps, reduce body roll when changing lanes at high speeds, improve braking nose-dive, and extend the life of other chassis components.

[0013] In the prior art, patent CN215217972U discloses an air leak testing fixture for shock absorbers, which uses a positioning support base and a clamping mechanism to clamp the workpiece by driving the clamping arm through a tension spring, achieving rapid positioning and clamping. However, this structure relies solely on static compression to achieve sealing, and the sealing ring and the end face of the workpiece are in planar contact, which is prone to forming leakage channels due to microscopic gaps, surface roughness, or coaxiality deviations. The sealing specific pressure is insufficient, the stability is poor, and it is difficult to meet the requirements of high-precision airtightness testing.

[0014] Patent CN118275061A discloses a device for testing the sealing performance of automotive shock absorber housings. It utilizes a rotating disk and intermittent mechanism to achieve multi-station operation and employs conical rubber pads to seal the ports. However, its sealing structure remains a passive static seal, with the sealing ring only subjected to axial pressure, unable to fill microscopic defects. Furthermore, the lack of relative friction between the workpiece and the sealing ring easily leads to problems such as loose fit and localized gaps, resulting in pressure fluctuations during pressure holding, distorted leakage determination, and insufficient testing accuracy and repeatability.

[0015] In addition, existing tooling generally suffers from the following problems: ① The seal relies on single axial compression, resulting in insufficient deformation and difficulty in forming an effective "filling + pressing" sealing state; ② The upper and lower seals are not synchronized and are subjected to uneven force, which easily leads to off-center loading and gaps; ③ After the test is completed, the workpiece and the sealing ring are difficult to demold due to negative pressure adsorption, affecting continuous production; ④ The sealing pressure is not adjustable, which easily leads to overpressure wear or underpressure leakage, making it difficult to balance service life and testing accuracy.

[0016] Therefore, the industry urgently needs an integrated rapid leak detection tool that can enhance the deformation of the sealing ring through dynamic friction, simultaneously seal the upper and lower ends, adjust the sealing force, and facilitate automatic demolding, in order to solve the defects of existing technologies such as low sealing accuracy, poor stability, low efficiency, and easy wear. Summary of the Invention

[0017] The purpose of this invention is to provide a rapid leak detection tool for the airtightness of an integrated shock absorber assembly, so as to solve the problems mentioned in the background art.

[0018] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a rapid leak detection fixture for the airtightness of an integrated shock absorber assembly, comprising a fixture base, a mounting groove at the bottom of the fixture base, and a sealing ring 1 embedded in the mounting groove; a cylinder is fixedly mounted on the upper part of the fixture base by bolts, an output shaft is fixedly connected to the output end of the cylinder, a sealing cylinder is rotatably connected to the lower end of the output shaft, an annular groove is formed at the lower end of the sealing cylinder, and a sealing ring 2 is embedded in the annular groove; the integrated shock absorber assembly is placed in the sealing ring 1, and the upper end is sealed by the sealing ring 2 of the sealing cylinder; an airtightness detector is connected to a pipe on one side of the lower end of the sealing cylinder, and an air valve is provided at the pipe connection; the airtightness detector includes an air source supply module, a pressure regulation module, an execution module, a detection sensing module, and a control processing module, and the modules are electrically connected to each other.

[0019] The invention further describes that a plate is fixedly installed above the tooling base, and a through hole is provided in the middle of the plate, with a ball bearing rollingly connected to the inner wall of the through hole; a spiral groove is provided on the outer surface of the sealing cylinder, and the ball bearing is rollingly connected in the spiral groove; the sealing cylinder is slidably connected in the through hole; the gas supply module is used to provide a clean and stable pressure testing gas source that meets the standard for testing; the pressure control module includes a precision pressure regulating valve, a pressure safety valve, and a pressure display gauge; the precision pressure regulating valve adjusts and sets the inflation pressure value; the pressure safety valve automatically releases pressure for overpressure protection; and the pressure display gauge displays the pressure status at the gas source end in real time; the execution module is used to control the switching of the gas path through commands; the detection sensing module is used to collect instantaneous gas pressure data in the cavity in real time; and the control processing module is responsible for receiving the pressure data transmitted by the pressure sensor, performing calculations, comparisons, and judgments, and issuing warnings through audible and visual signals when the test is unqualified.

[0020] The present invention further illustrates that the lower end of the output shaft and the upper end of the sealing cylinder are both provided with countersunk holes, and a shaft is rotatably connected between the two countersunk holes.

[0021] The present invention further illustrates that the inner wall of the mounting groove is uniformly provided with a plurality of protrusions, and the outer wall of the sealing ring is uniformly provided with a plurality of grooves, and the grooves and protrusions fit together.

[0022] The present invention further explains that when the ball rolls in the spiral groove, it generates an axial force, and the upper end of the integrated shock absorber assembly generates friction between the second sealing ring and the lower end generates friction between the first sealing ring.

[0023] The present invention further illustrates that a plurality of arc grooves are uniformly arranged on the lower part of the inner wall of the spiral groove, and when the sealing cylinder is reset, the ball and the lower part of the inner wall of the spiral groove are in contact with each other.

[0024] The present invention further illustrates that the shaft moves up and down along the countersunk hole of the output shaft and the inner wall of the countersunk hole of the sealing cylinder.

[0025] The present invention further illustrates that the surface of the plate is provided with holes, and a screw is inserted into the holes. Two limiting nuts are threaded to the outer side of the screw, and the two limiting nuts are respectively attached to the upper and lower surfaces of the plate. The lower end of the screw is integrally formed with the surface of the tooling base.

[0026] Compared with the prior art, the beneficial effects achieved by the present invention are: 1. Significantly improves sealing effect and detection accuracy: The rotational motion of the sealing cylinder during lifting and lowering causes friction and torsion between the second sealing ring and the upper end face of the shock absorber, resulting in full elastic deformation and achieving enhanced sealing from surface bonding to gap filling and end face pressing; at the same time, it drives the shock absorber to rotate slightly, causing the lower sealing ring one to be squeezed and deformed inward, thus simultaneously strengthening the upper and lower seals, completely eliminating leakage channels caused by micro gaps and machining tolerances, and greatly improving the accuracy and reliability of airtightness detection.

[0027] 2. Automatic rotation demolding improves continuous inspection efficiency: When the sealing cylinder is reset, the ball is embedded in the arc groove below the spiral groove, causing the sealing cylinder to vibrate up and down. This breaks the adsorption force between the workpiece and the sealing ring caused by the extrusion of air, so that the workpiece can be automatically shaken off and quickly picked up and put away after inspection. No manual demolding is required. It is suitable for continuous inspection of large batch integrated shock absorber assemblies and significantly improves the inspection cycle.

[0028] 3. Adjustable sealing force, balancing accuracy and service life: The height of the plate can be adjusted by the screw and the limit nut, which changes the initial extrusion force of the ball on the spiral groove. This allows for precise control of the clamping force and friction between the sealing ring and the workpiece, avoiding excessive pressure that could cause excessive wear and permanent deformation of the sealing ring, and preventing insufficient pressure that could lead to seal failure. This ensures testing accuracy while extending the service life of the tooling and sealing components, and reducing operating costs.

[0029] 4. Simple structure, stable operation, and high degree of automation: The rotation action is achieved by the mechanical cooperation of the ball and the spiral groove, without the need for an additional drive motor. The structure is simple and reliable, and the manufacturing cost is low. The sealing, detection, and demolding processes can be completed by the cylinder pressing down and resetting. The degree of automation is high, the operation is convenient, the disturbance error is small, and the detection results are stable and consistent.

[0030] 5. Effective buffering and reduced structural damage: After the workpiece comes into contact with the sealing ring, the increased friction gradually slows down the rolling speed of the balls, achieving flexible pressure and avoiding scratches on the workpiece surface or structural fatigue caused by rigid impact. At the same time, the tooling is easy to disassemble and maintain, and the replacement of vulnerable parts is quick, further improving the overall economic efficiency. Attached Figure Description

[0031] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is an exploded view of the present invention; Figure 3 This is a cross-sectional view of the present invention; Figure 4 This is the front view of the present invention; Figure 5 This is a schematic diagram of the sealing cylinder structure of the present invention; In the diagram: 1. Tooling base; 2. Mounting groove; 3. Sealing ring one; 4. Cylinder; 41. Output shaft; 42. Sealing cylinder; 421. Spiral groove; 422. Arc groove; 43. Shaft; 5. Sealing ring two; 6. Plate; 61. Through hole; 611. Ball bearing; 62. Screw; 63. Limit nut. Detailed Implementation

[0032] The following detailed, non-limiting description of the technical solution of the present invention, in conjunction with preferred embodiments and accompanying drawings, is provided. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0033] Please see Figures 1-5 The present invention provides a technical solution: an integrated shock absorber assembly airtightness rapid leak detection tooling, including a tooling base 1, a mounting groove 2 is provided at the bottom of the tooling base 1, and a sealing ring 3 is embedded in the mounting groove 2; A cylinder 4 is fixedly installed on the top of the tooling base 1 by bolts. An output shaft 41 is fixedly connected to the output end of the cylinder 4. A sealing cylinder 42 is rotatably connected to the lower end of the output shaft 41. An annular groove is opened at the lower end of the sealing cylinder 42, and a sealing ring 5 is embedded in the annular groove. The integrated shock absorber assembly is placed inside the sealing ring 3, and the upper end is sealed by the sealing ring 5 of the sealing cylinder 42. The lower end of the sealing cylinder 42 is connected to an air tightness tester by a pipe, and an air valve is provided at the pipe connection. The air tightness tester includes an air supply module, a pressure regulation module, an execution module, a detection sensor module, and a control processing module, and the modules are electrically connected to each other. The integrated shock absorber assembly is placed into the sealing ring 3 in the mounting slot 2. Then, the cylinder 4 presses down, driving the sealing cylinder 42 downward through the output shaft 41. This causes the sealing ring 5 to press against the upper end of the integrated shock absorber assembly, forming a fully enclosed testing chamber between the integrated shock absorber assembly and the sealing cylinder 42. Simultaneously, the lower end of the integrated shock absorber assembly squeezes the sealing ring 3, sealing the lower end of the integrated shock absorber assembly. Next, the air tightness tester operates, filling the sealing cylinder 42 with compressed air. After reaching the set pressure, the air valve is closed, and the pressure is maintained for a period of time to allow the airflow to stabilize and the temperature to equalize, eliminating errors caused by air filling disturbances. Then, the air tightness tester monitors the pressure change inside the sealing cylinder 42, judging whether the air tightness exceeds the error by observing the pressure drop value. The air tightness of the integrated shock absorber assembly is automatically tested. The operation is automated, convenient, fast, and has high testing efficiency. Furthermore, the sealing rings 5 ​​and 3 enhance the sealing performance, thereby ensuring the accuracy of the air tightness test.

[0034] A plate 6 is fixedly installed on the top of the tooling base 1. A through hole 61 is provided in the middle of the plate 6, and a ball bearing 611 is rolledly connected to the inner wall of the through hole 61. The outer surface of the sealing cylinder 42 is provided with a spiral groove 421, and the ball 611 is rotatably connected in the spiral groove 421, and the sealing cylinder 42 is slidably connected in the through hole 61. The gas supply module provides a clean and stable pressure testing gas source that meets the standards. The pressure control module includes a precision pressure regulating valve, a pressure safety valve, and a pressure display. The precision pressure regulating valve adjusts and sets the inflation pressure value, the pressure safety valve provides automatic overpressure relief protection, and the pressure display shows the pressure status of the gas source in real time. The execution module controls the switching of the gas path through commands. The detection sensing module collects instantaneous gas pressure data in the cavity in real time. The control processing module receives the pressure data transmitted by the pressure sensor, performs calculations, comparisons, and judgments, and issues an audible and visual warning when the test fails.

[0035] The core working principle of an airtightness tester: The air tightness tester adopts the direct pressure air tightness testing principle (also known as the pressure decay method). Based on the ideal gas law, under the premise that the workpiece under test is well sealed, after the sealed cylinder 42 is filled with gas at a constant pressure, if the ambient temperature and volume do not change, the pressure inside the cavity remains constant; if there are sealing defects, gaps or leakage points, the gas inside the cavity will leak outward, causing the internal pressure to gradually decrease. By accurately detecting this pressure decay, the air tightness of the workpiece can be quantitatively determined.

[0036] The testing procedure for integrated shock absorber assemblies is as follows: 1. Sealing clamping: The integrated shock absorber assembly is fixed to a special sealing fixture, and the upper and lower sealing ends are pressed together by a quick clamping mechanism to form a completely closed independent sealing cavity; 2. Inflation and pressure stabilization: The control and processing module opens the inflation solenoid valve to fill the sealed cavity with detection gas at a preset pressure value. After the set pressure is reached, the inflation solenoid valve is closed, and the pressure stabilization stage is entered to eliminate pressure fluctuations generated during the inflation process. 3. Pressure Holding Detection: Upon entering the constant pressure holding stage, a high-precision pressure sensor continuously collects real-time pressure data within the sealed cavity and synchronously transmits the data to the embedded controller. The controller continuously records the pressure change curve during the pressure holding period. 4. Data Calculation and Judgment: The controller extracts the pressure values ​​at the start and end of the pressure holding period, calculates the pressure decay rate per unit time or the total pressure drop during the pressure holding cycle, and compares it with the preset qualified threshold to obtain the detection result; 5. Exhaust and reset: After the test is completed, open the exhaust solenoid valve to discharge the test gas in the sealed cavity, loosen the sealing fixture, remove the workpiece to be tested, and complete the single test process.

[0037] Under the test conditions of preset test pressure (e.g., 0.4MPa~0.8MPa, which can be adapted according to the shock absorber model), constant pressure holding time (e.g., 10s~30s), and standard ambient temperature (20℃±5℃), if the gas pressure decay value in the sealed cavity during the pressure holding period is ≤ the preset allowable leakage pressure threshold, or the pressure decay rate per unit time is ≤ the preset allowable leakage rate threshold, then the integrated shock absorber assembly is judged to be qualified in terms of air tightness; if the pressure decay value or pressure decay rate exceeds the preset qualified threshold, then the air tightness is judged to be unqualified, and there is a leakage defect.

[0038] The preset threshold is set according to the product quality standard of the integrated shock absorber assembly. For example, when the pressure holding time is 20s and the detection pressure is 0.5MPa, the maximum allowable pressure drop is ≤50Pa and the maximum allowable pressure decay rate is ≤2.5Pa / s. If it exceeds this range, it is judged as a seal failure.

[0039] The lower end of the output shaft 41 and the upper end of the sealing cylinder 42 are both provided with countersunk holes, and a shaft 43 is rotatably connected between the two countersunk holes. As the sealing cylinder 42 moves downward, the balls 611 roll within the spiral groove 421, generating an axial force on the inner wall of the spiral groove 421. This causes the sealing cylinder 42 to rotate as it moves downward. When the second sealing ring 5 contacts the upper surface of the integrated shock absorber assembly, the second sealing ring 5 rotates, increasing the friction between it and the upper surface of the integrated shock absorber assembly. This causes the second sealing ring 5 to deform, changing from a close fit to a filling and pressing fit. This eliminates gaps and provides continuous sealing force, enhancing the sealing effect and further improving detection accuracy. After the airtightness test is completed, the cylinder 4 resets and drives the sealing cylinder 42 to move upward and reset via the output shaft 41. At the same time, the sealing cylinder 42 rotates in the opposite direction to reset via the rolling connection between the ball 611 and the spiral groove 421. The system is automated and has a simple overall structure, which significantly reduces the manufacturing cost of the tooling while improving the sealing effect.

[0040] The inner wall of the mounting groove 2 is evenly provided with several protrusions, and the outer wall of the sealing ring 3 is evenly provided with several grooves, and the grooves and protrusions fit together. When the sealing ring 25 rotates and twists, the frictional force on the upper end of the integrated shock absorber assembly increases, thereby causing the integrated shock absorber assembly to rotate slightly. Its bottom and the sealing ring 3 squeeze and rub against each other, thereby causing the sealing ring 3 to twist and deform slightly and rotate. The protrusion on the inner wall of the mounting groove 2 squeezes the outer surface of the sealing ring 3, thereby causing the sealing ring 3 to shrink and deform inward, ensuring the sealing performance of the lower end of the integrated shock absorber assembly, thus greatly improving the airtightness detection accuracy and further enhancing the sealing strength.

[0041] When the ball 611 rolls in the spiral groove 421, it generates axial force. Friction is generated between the upper end of the integrated shock absorber assembly and the sealing ring 2 5, and friction is generated between the lower end and the sealing ring 1 3. When sealing ring 2 5 contacts and rubs against the upper end of the integrated shock absorber assembly, sealing ring 1 3 contacts and rubs against the lower end of the integrated shock absorber assembly. The resulting resistance causes the ball 611 to roll slowly within the spiral groove 421 until the downward pressure of cylinder 4 can no longer satisfy the continuous rolling of the ball 611. This gradually slows down the movement speed of the ball 611 within the spiral groove 421, thereby gradually reducing the frictional force of sealing ring 1 3 and sealing ring 2 5 on the integrated shock absorber assembly, thus relatively reducing structural wear. The ball 611's movement speed and stroke can automatically adapt to the pressure intensity of cylinder 4, which can improve sealing performance and extend the service life of the tooling. Meanwhile, the overall structure of the tooling allows for quick assembly and disassembly, facilitating maintenance and making structural replacement convenient and efficient. This, in turn, improves work efficiency for large-scale testing.

[0042] A number of arc grooves 422 are evenly arranged on the lower inner wall of the spiral groove 421, and when the sealing cylinder 42 is reset, the ball 611 is in contact with the lower inner wall of the spiral groove 421.

[0043] The shaft 43 moves up and down along the inner wall of the countersunk hole of the output shaft 41 and the countersunk hole of the sealing cylinder 42. When the sealing cylinder 42 is reset, it moves upward, causing the ball 611 to move in the opposite direction within the spiral groove 421 and generating an axial force on the lower part of the inner wall of the spiral groove 421. At this time, since the shaft 43 can move up and down within the counterbore, when the ball 611 rolls to the position of the arc groove 422, it suddenly embeds itself into the arc groove 422 and then rolls out from the arc groove 422. This causes the sealing cylinder 42 to vibrate up and down through the shaft 43. Due to the compression of the upper end of the integrated shock absorber assembly by the sealing ring 5, the air between the two is expelled, thereby generating an adsorption force. The vibration can shake the integrated shock absorber assembly off, making it easier to remove the tested integrated shock absorber assembly. This allows the airtightness testing process to continue, further improving work efficiency.

[0044] The surface of plate 6 is provided with holes, and a screw 62 is inserted into the holes. Two limiting nuts 63 are threaded to the outside of the screw 62, and the two limiting nuts 63 are respectively attached to the upper and lower surfaces of plate 6. The lower end of the screw 62 is integrally formed with the surface of the tooling base 1. The operator can adjust the position of the plate 6 by turning the limit nut 63, which moves up and down on the screw 62 via threaded transmission. After the position of the plate 6 changes, the initial extrusion force of the ball 611 on the inner wall of the spiral groove 421 changes, thereby adjusting the magnitude of the axial force. The extrusion and friction forces on the sealing ring 2 5 and sealing ring 1 3 and the upper and lower ends of the integrated shock absorber assembly can be precisely adjusted, thus ensuring the detection accuracy and significantly improving its service life, thereby reducing costs.

[0045] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features, and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rapid leak detection fixture for the airtightness of an integrated shock absorber assembly, comprising a fixture base (1), characterized in that: The tooling base (1) has a mounting groove (2) at its bottom, and a sealing ring (3) is embedded in the mounting groove (2). A cylinder (4) is fixedly installed on the upper part of the tooling base (1) by bolts. An output shaft (41) is fixedly connected to the output end of the cylinder (4). A sealing cylinder (42) is rotatably connected to the lower end of the output shaft (41). An annular groove is opened at the lower end of the sealing cylinder (42), and a sealing ring (5) is embedded in the annular groove. The integrated shock absorber assembly is placed inside the sealing ring one (3), and the upper end is sealed by the sealing ring two (5) of the sealing cylinder (42). The lower end of the sealing cylinder (42) is connected to an air tightness tester by a pipe, and an air valve is provided at the pipe connection. The air tightness tester includes an air supply module, a pressure control module, an execution module, a detection sensor module, and a control processing module, and the modules are electrically connected to each other. A plate (6) is fixedly installed above the tooling base (1). A through hole (61) is provided in the middle of the plate (6), and a ball (611) is rolled on the inner wall of the through hole (61). A spiral groove (421) is provided on the outer surface of the sealing cylinder (42), and the ball (611) is rolled in the spiral groove (421). The sealing cylinder (42) is slidably connected in the through hole (61).

2. The integrated shock absorber assembly airtightness rapid leak detection tooling according to claim 1, characterized in that: The gas supply module provides a clean and stable pressure testing gas source that meets the standards. The pressure control module includes a precision pressure regulating valve, a pressure safety valve, and a pressure display. The precision pressure regulating valve adjusts and sets the inflation pressure value, the pressure safety valve provides automatic overpressure relief protection, and the pressure display shows the pressure status of the gas source in real time. The execution module controls the switching of the gas path through commands. The detection sensing module collects instantaneous gas pressure data in the cavity in real time. The control processing module receives the pressure data transmitted by the pressure sensor, performs calculations, comparisons, and judgments, and issues an audible and visual warning when the test fails.

3. The integrated shock absorber assembly airtightness rapid leak detection tooling according to claim 2, characterized in that: The lower end of the output shaft (41) and the upper end of the sealing cylinder (42) are both provided with countersunk holes, and a shaft (43) is rotatably connected between the two countersunk holes.

4. The integrated shock absorber assembly airtightness rapid leak detection tooling according to claim 3, characterized in that: The inner wall of the mounting groove (2) is uniformly provided with several protrusions, and the outer wall of the sealing ring (3) is uniformly provided with several grooves, and the grooves and protrusions fit together.

5. The integrated shock absorber assembly airtightness rapid leak detection tooling according to claim 4, characterized in that: The ball (611) generates an axial force when it rolls in the spiral groove (421), and friction is generated between the upper end of the integrated shock absorber assembly and the second sealing ring (5), and friction is generated between the lower end and the first sealing ring (3).

6. The integrated shock absorber assembly airtightness rapid leak detection tooling according to claim 5, characterized in that: The inner wall of the spiral groove (421) is uniformly provided with several arc grooves (422), and when the sealing cylinder (42) is reset, the ball (611) and the inner wall of the spiral groove (421) are in contact with each other.

7. The integrated shock absorber assembly airtightness rapid leak detection tooling according to claim 6, characterized in that: The shaft (43) moves up and down along the countersunk hole of the output shaft (41) and the inner wall of the countersunk hole of the sealing cylinder (42).

8. The integrated shock absorber assembly airtightness rapid leak detection tooling according to claim 7, characterized in that: The surface of the plate (6) is provided with holes, and a screw (62) is inserted into the holes. Two limiting nuts (63) are threaded to the outside of the screw (62), and the two limiting nuts (63) are respectively attached to the upper and lower surfaces of the plate (6). The lower end of the screw (62) is integrally formed with the surface of the tooling base (1).

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