Automobile air suspension helium detection tool

Abstract

The utility model discloses an automobile air suspension helium detection tool. The automobile air suspension helium detection tool comprises a vacuum box, a positioning sealing assembly and a pneumatic pressing assembly, the positioning and sealing assembly comprises a bottom plate, a positioning unit and a sealing unit are fixedly installed on the bottom plate, the positioning unit is matched with a main body part of the automobile air suspension, and the sealing unit is matched with a branch pipe part of the automobile air suspension, so that the main body part of the automobile air suspension is sleeved with the positioning unit and is supported by the positioning unit when leakage detection is conducted on the automobile air suspension. The air suspension branch pipe part of the automobile is sleeved with the sealing unit and is sealed through the sealing unit. And a helium filling channel communicated with a suspended branch pipe part of the automobile is arranged in the sealing unit. When the automobile air suspension leakage detection device is used for detecting leakage of an automobile air suspension, the automobile air suspension can be directly installed in the positioning unit and the sealing unit, and the sealing unit seals a branch pipe part of the automobile air suspension, so that positioning and sealing of the automobile air suspension are completed, and the requirement of rapid leakage detection of a modern industrial production line is met.

Description

Technical Field

[0001] The utility model relates to a helium detection technology, in particular to a helium detection tooling for automotive air suspensions. Background Art

[0002] With the rise of the automotive industry and the upgrade of consumption, the air suspension system has emerged, which not only improves the comfort of the vehicle but also takes into account the passing performance of off-road vehicles. According to different road conditions and the signals of distance sensors, the vehicle computer will judge the change in the body height, and then control the air compressor and exhaust valves to automatically compress or extend the spring, thereby reducing or increasing the ground clearance of the chassis to improve the stability of the vehicle at high speeds or the passing performance on complex road conditions. The research and development and manufacturing technology of the air suspension system have also become an important part of the development of mid- to high-end vehicles. The quality of the air suspension also plays a key role in the safe and stable operation of the vehicle. The air suspension housing is a hollow product with an air passage left in the middle, so higher requirements are imposed on airtightness. The traditional detection method is water detection, which is time-consuming and laborious, and the accuracy is not high. Specifically: relying on workers to manually place the workpiece on the tooling, put it into water, and fill a certain pressure of gas at the bottom of the workpiece to detect whether there are bubbles at various positions of the workpiece to determine the leakage situation. This detection method is inefficient, consumes a large amount of manpower and material resources, and it is difficult to ensure the sealing effect of the manual pressing method. Therefore, a stable, easy-to-operate and automatically sealed gas detection tooling is needed to solve this problem. Summary of the Utility Model

[0003] In order to solve the above deficiencies in the prior art, the purpose of the utility model is to provide a helium detection tooling for automotive air suspensions, which can quickly complete the helium detection procedure and meet the requirements of rapid leak detection in modern industrial production lines.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a helium detection tooling for automotive air suspensions, including a vacuum chamber and a positioning and sealing assembly and a pneumatic pressing assembly installed in the vacuum chamber;

[0005] The positioning and sealing assembly includes a bottom plate, on which a positioning unit and a sealing unit are fixedly installed. The positioning unit is adapted to the main body part of the automotive air suspension, and the sealing unit is adapted to the branch pipe part of the automotive air suspension, so that when detecting the leakage of the automotive air suspension, the main body part of the automotive air suspension is sleeved in the positioning unit and supported by the positioning unit, and the branch pipe part of the automotive air suspension is sleeved in the sealing unit and sealed by the sealing unit;

[0006] The inside of the sealing unit has a helium filling channel communicating with the branch pipe part of the automotive air suspension;

[0007] The pneumatic pressing assembly is arranged above the positioning and sealing assembly.

[0008] Optionally, the positioning unit includes a positioning flange, a floating head, and a positioning tooling. The positioning flange is fixedly installed in the bottom plate, and the positioning tooling is connected to the positioning flange through the floating head.

[0009] Optionally, the sealing unit includes a sealing head. The sealing head is fixedly installed in the bottom plate. A groove is formed in the outer wall of the sealing head, and an inflatable seal ring is installed in the groove.

[0010] Optionally, the pneumatic pressing assembly includes a pressing cylinder, a floating pressing head, and a guiding rod. The pressing cylinder is connected to a pressing plate through a push rod. The floating pressing head is installed below the pressing plate. The guiding rod is fixedly installed in the vacuum chamber, and both ends of the pressing plate are slidably connected to the guiding rod respectively.

[0011] With the above technical solution, when the present utility model is used for leak detection of an automotive air suspension, the automotive air suspension can be directly installed in the positioning unit and the sealing unit. The sealing unit seals the branch pipe part of the automotive air suspension, thereby completing the positioning and sealing of the automotive air suspension, and meeting the requirements of rapid leak detection in modern industrial production lines. Description of the Drawings

[0012] Figure 1 is a schematic structural view of the automotive air suspension of the present utility model;

[0013] Figure 2 is a schematic structural view of the present utility model;

[0014] Figure 3 is a schematic structural view of the positioning assembly of the present utility model;

[0015] Figure 4 is Figure 2 the A-A sectional view of Detailed Description of the Embodiment

[0016] The following further elaborates the present application with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are merely used to explain the relevant utility model and do not limit the utility model. Additionally, it should be noted that for the sake of description, only parts related to the utility model are shown in the drawings.

[0017] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The following will detail the present application with reference to the drawings and in combination with the embodiments.

[0018] As Figures 1 to 4As shown in the figure, the utility model discloses a helium leak detection tooling for automotive air suspension. This tooling is used to position and seal the automotive air suspension 100, thereby meeting the requirement of quickly detecting leaks in the automotive air suspension 100. The helium leak detection tooling of the utility model includes a vacuum chamber 200, a positioning and sealing assembly 300 and a pneumatic pressing assembly 400 installed in the vacuum chamber 200. The pneumatic pressing assembly 400 is arranged above the positioning and sealing assembly 300. During helium leak detection, the pneumatic pressing assembly 400 moves downward to press the automotive air suspension 100 tightly in the positioning and sealing assembly 300.

[0019] In the utility model, the positioning and sealing assembly 300 includes a bottom plate 310. A positioning unit and a sealing unit are fixedly installed on the bottom plate 310. The positioning unit is adapted to the main body part of the automotive air suspension 100 and is used to position and support the automotive air suspension 100. The sealing unit is adapted to the branch pipe part of the automotive air suspension 100 and is used to seal the branch pipe part of the automotive air suspension 100. At the same time, helium gas is filled into the branch pipe part of the automotive air suspension 100 during helium leak detection. When detecting leaks in the automotive air suspension 100, the main body part of the automotive air suspension 100 is sleeved in the positioning unit and supported by the positioning unit, and the branch pipe part of the automotive air suspension 100 is sleeved in the sealing unit and sealed by the sealing unit.

[0020] Specifically, as Figure 2 and Figure 3 shown, the positioning unit includes a positioning flange 320, a floating head 330 and a positioning tooling 340. The positioning flange 320 is fixedly installed in the bottom plate 310, and the positioning tooling 340 is connected to the positioning flange 320 through the floating head 330. As Figure 4 shown, the sealing unit includes a sealing head 350. The sealing head 350 is fixedly installed in the bottom plate 310. A groove is formed on the outer wall of the sealing head 350, and an inflatable seal ring 360 is installed in the groove. When sealing the branch pipe part of the automotive air suspension 100, it is sealed by the inflatable seal ring 360, and a fast and efficient sealing effect can be achieved. In addition, the inside of the sealing head 350 has a helium filling channel communicating with the branch pipe part of the automotive air suspension 100 to facilitate filling helium gas into the inside of the automotive air suspension 100.

[0021] In the utility model, as Figure 2 shown, the pneumatic pressing assembly 400 includes a pressing cylinder 410, a floating pressing head 420 and a guide rod 430. The pressing cylinder 410 is connected to a pressing plate 450 through a push rod 440. The floating pressing head 420 is installed below the pressing plate 450. The guide rod 430 is fixedly installed in the vacuum chamber 200, and the number of the guide rods 430 is two. Both ends of the pressing plate 450 are slidably connected to the two guide rods 430 respectively.

[0022] The above description is only a preferred embodiment of the present application and an explanation of the applied technical principles. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solutions formed by the specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept of the utility model. For example, the technical solutions formed by the mutual replacement of the above features with the technical features (but not limited to) disclosed in the present application that have similar functions.

[0023] Except for the technical features described in the specification, the remaining technical features are known to those skilled in the art. To highlight the innovative features of the present utility model, the remaining technical features are not elaborated herein.

Claims

1. An automobile air suspension helium leak detection tooling, characterized in that It includes a vacuum chamber, a positioning and sealing assembly, and a pneumatic pressing assembly installed inside the vacuum chamber; The positioning and sealing assembly includes a bottom plate, on which a positioning unit and a sealing unit are fixedly installed. The positioning unit is adapted to the main body part of the automotive air suspension, and the sealing unit is adapted to the branch pipe part of the automotive air suspension. When leak-checking the automotive air suspension, the main body part of the automotive air suspension is sleeved in the positioning unit and supported by the positioning unit, and the branch pipe part of the automotive air suspension is sleeved in the sealing unit and sealed by the sealing unit; The inside of the sealing unit has a helium charging channel communicating with the branch pipe part of the automotive air suspension; The pneumatic pressing assembly is arranged above the positioning and sealing assembly.

2. The automotive air suspension helium leak detection tooling according to claim 1, characterized in that, The positioning unit includes a positioning flange, a floating head, and a positioning tooling. The positioning flange is fixedly installed in the bottom plate, and the positioning tooling is connected to the positioning flange through the floating head.

3. The helium leak detection tooling for automotive air suspension according to claim 2, wherein The sealing unit includes a sealing head, which is fixedly installed in the bottom plate. A groove is formed in the outer wall of the sealing head, and an inflatable sealing ring is installed in the groove.

4. The helium leak detection tooling for automotive air suspension according to claim 1, characterized in that, The pneumatic pressing assembly includes a pressing cylinder, a floating pressing head, and a guide rod. The pressing cylinder is connected to a pressing plate through a push rod. The floating pressing head is installed below the pressing plate. The guide rod is fixedly installed inside the vacuum chamber, and both ends of the pressing plate are slidably connected to the guide rod.

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