Air tightness detection device for air spring

Abstract

The utility model relates to an air spring air tightness detection device, comprising a water tank used for soaking an air spring and detecting the air tightness of the air spring; the clamping mechanism is used for fixing the air spring and soaking the air spring into the water tank and comprises a pneumatic chuck, a plurality of clamping jaws and a supporting rod; the clamping jaws are evenly arranged on the peripheral edge of the pneumatic chuck and used for clamping the side edge of an end cover of the air spring, and clamping or loosening of the clamping jaws is controlled by an external air compressor. And the pneumatic chuck is connected to an air compressor through a pipeline. The air tightness of the air spring can be rapidly and accurately detected, manual operation is reduced, and production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of air spring testing equipment, and in particular to an air spring air tightness testing device. Background Technology

[0002] Air springs are widely used in the automotive, rail transportation, and machinery manufacturing industries due to their vibration reduction and noise reduction properties. They are commonly used in suspension systems and seat damping to provide a comfortable ride and effective vibration isolation.

[0003] Air tightness is a key performance indicator for air springs, directly affecting their service life and functional performance. If an air spring leaks, it will be unable to maintain the required air pressure, thus losing its vibration damping effect. In the air spring manufacturing process, traditional air tightness testing methods suffer from low efficiency, complex operation, and are time-consuming and labor-intensive. Therefore, developing a new type of air tightness testing device is crucial to improving testing efficiency and reducing production costs. Summary of the Invention

[0004] To overcome at least one of the problems mentioned above, this invention provides an air spring air tightness testing device that can quickly and accurately test the air tightness of air springs, reducing manual operation and improving production efficiency.

[0005] The technical solution adopted by this utility model to solve its technical problem is: an air spring airtightness testing device, comprising:

[0006] A water tank is used to immerse the air spring and test its airtightness.

[0007] The clamping mechanism is used to fix the air spring and immerse the air spring in a water tank. It includes a pneumatic clamping plate, multiple clamps, and a support rod. The clamps are evenly arranged around the periphery of the pneumatic clamping plate to clamp the side edge of the end cap of the air spring. The clamps are clamped or released by an external air compressor. The pneumatic clamping plate is connected to the air compressor through a pipeline.

[0008] The support rod is located in the middle of the pneumatic clamp and presses against the middle of the end cap of the air spring;

[0009] The lifting mechanism provides a lifting stroke for the clamping mechanism, allowing the clamping mechanism to sink into or rise out of the water tank. It includes a longitudinally arranged slide rail, a slider, and a lifting cylinder. The slider is slidably sleeved on the slide rail, and the output end of the lifting cylinder is connected to the slider to push it up or down. The slider is connected to the pneumatic clamping plate.

[0010] Preferably, the gripper is provided with a clamping part, which is a semi-circular groove structure for clamping the side edge of the end cap of the air spring.

[0011] Preferably, the pneumatic clamping plate is provided with a sliding cavity; the bottom of the gripper is provided with a guide slide, which is movably installed in the sliding cavity; a spring is provided in the sliding cavity, and the spring force causes the gripper to move outward; an air inlet is provided at the front end of the sliding cavity, and when inflated, it pushes the guide slide to clamp inward.

[0012] Preferably, the system also includes a base platform, on which the water tank and the lifting mechanism are respectively mounted.

[0013] Preferably, the base platform is also equipped with a control box for controlling the air compressor and the lifting mechanism.

[0014] Preferably, a clamping plate is provided between the slider and the pneumatic clamping plate, and the slider and the pneumatic clamping plate are connected by the clamping plate; the clamping plate is a frame structure with a downward-opening clearance space in the middle.

[0015] Preferably, the support rod is equipped with a pneumatic switch for controlling the air compressor. When the end cap of the air spring touches the support rod, it can trigger the air compressor.

[0016] The beneficial effects of this utility model are:

[0017] The air spring air tightness testing device of this utility model can quickly and accurately test the air tightness of air springs by immersing them, reducing manual operation and improving production efficiency. In use, connect the air spring to be tested to the air nozzle and air pipe, then attach the air spring end cap to the end face of the support rod. Press the pneumatic clamping button; the pneumatic clamping plate drives four jaws to clamp the edge of the air spring end cap. After the air spring is fixed, press the test start button. At this time, the air compressor inflates the air spring through the air pipe, while the lifting cylinder drives the clamping mechanism to move downwards, immersing the air spring in the water tank. Stop when the maximum displacement is reached. Observe whether air bubbles are generated on the surface of the air spring. Press the test end button; the lifting cylinder drives the clamping mechanism to rise, while the air spring is deflated. After the pneumatic clamping plate reaches its maximum displacement, press the pneumatic clamping release button to remove the air spring, completing the test. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic diagram of the overall structure of the air spring air tightness testing device described in this utility model;

[0020] Figure 2 yes Figure 1 Schematic diagram of the structure from the middle and rear view;

[0021] Figure 3This is a schematic diagram of the air spring air tightness testing device in use according to the present invention;

[0022] Figure 4 This is a cross-sectional structural schematic diagram of the air spring air tightness testing device described in this utility model;

[0023] Figure 5 This is a schematic diagram of one embodiment of the clamping mechanism of the air spring airtightness testing device described in this utility model. Attached image description:

[0025] 1. Base platform; 2. Water tank; 3. Clamping plate; 31. Gripper; 32. Support rod; 301. Slide cavity; 302. Slider; 303. Spring; 304. Air inlet; 4. Slide rail; 41. Slider; 42. Lifting cylinder; 43. Rod connecting plate; 5. Clamping plate connecting plate; 6. Air spring; 7. Control box. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0027] like Figure 1-4 The air spring air tightness testing device shown consists of a water tank 2, a clamping mechanism, and a lifting mechanism. By immersing the air spring 6, it can quickly and accurately test the air tightness of the air spring 6, reducing manual operation and improving production efficiency. It has high testing efficiency.

[0028] Water tank 2, see Figure 3 It is used to soak the air spring 6, test the air tightness of the air spring 6, and control the lifting and lowering using the lifting mechanism.

[0029] A clamping mechanism, used to fix the air spring 6, immerses the air spring 6 in the water tank 2. It includes a pneumatic clamping plate 3, multiple clamping jaws 31, and a support rod 32. The clamping jaws 31 are evenly distributed around the periphery of the pneumatic clamping plate 3 to clamp the side edges of the end caps of the air spring 6. The clamping jaws 31 are controlled by an external air compressor to clamp or release. The pneumatic clamping plate 3 is connected to the air compressor via pipelines. The support rod 32 is located in the middle of the pneumatic clamping plate 3, pressing against the middle of the end cap of the air spring 6. This increases the supporting force in the middle, maintaining balance and ensuring good fixation. The support rod 32 is coaxial with the pneumatic clamping plate 3, supporting the end face of the air spring 6 cover and preventing deformation of the cover after the air spring 6 is pressurized.

[0030] The lifting mechanism provides a lifting stroke for the clamping mechanism, allowing the clamping mechanism to sink into or rise out of the water tank 2. It includes a longitudinally arranged slide rail 4, a slider 41, and a lifting cylinder 42. The slider 41 is slidably sleeved on the slide rail 4. The output end of the lifting cylinder 42 is connected to the slider 41, pushing it to rise or fall. The slider 41 is connected to the pneumatic clamping plate 3. The lifting cylinder 42 is a double-acting rod cylinder; its output rod acts on the connecting slider 41. A rod connecting plate 43 is provided between the output rod and the connecting slider 41.

[0031] In this embodiment, see Figure 5 A clamping plate 5 is provided between the slider 41 and the pneumatic clamping plate 3. The slider 41 and the pneumatic clamping plate 3 are connected by the clamping plate 5. The clamping plate 5 is a frame structure with a downward-opening clearance space in the middle, which can prevent it from touching the water tank 2 during the lifting process.

[0032] The gripper 31 is provided with a clamping part, which is a semi-circular groove structure used to clamp the side edge of the end cap of the air spring 6.

[0033] In one embodiment, the pneumatic clamp 3 of the clamping mechanism is a double-acting pneumatic mechanism.

[0034] In another implementation, see Figure 5 The pneumatic clamping plate 3 is provided with a sliding cavity 301, and a guide slide 302 is provided at the bottom of the gripper 31. The guide slide 302 is movably installed in the sliding cavity 301. A spring 303 is provided in the sliding cavity 301. The elastic force of the spring 303 causes the gripper 31 to move outward and open. An air inlet 304 is provided at the front end of the sliding cavity 301. When inflated, it pushes the guide slide 302 to clamp inward.

[0035] The air spring 6 air tightness testing device in this embodiment also includes a base platform 1, a water tank 2, and a lifting mechanism respectively mounted on the base platform 1. See [link / details]. Figure 1 , 2 3.

[0036] A control box 7 is also installed on the base platform 1. The control box 7 has a corresponding control system for controlling the air compressor and the lifting mechanism. The control box 7 has four buttons: a clamping button for the pneumatic chuck 3, a detection start button, a detection end button, and a pneumatic chuck 3 release button.

[0037] The following is a detailed implementation method: Connect the air spring 6 to be tested to the air nozzle and air pipe, then attach the end cover plate of the air spring 6 to the end face of the support rod 32, press the clamping button of the pneumatic clamping plate 3, and the pneumatic clamping plate 3 drives the four jaws 31 to clamp the edge of the air spring 6 cover plate; after the air spring 6 is fixed, press the test start button. At this time, the air compressor inflates the air spring 6 through the air pipe, and at the same time, the lifting cylinder 42 drives the clamping mechanism to move downward to immerse the air spring 6 into the water tank 2. Stop after reaching the maximum displacement; observe whether there are bubbles on the surface of the air spring 6; press the test end button, and at the same time, the lifting cylinder 42 drives the clamping mechanism to rise, and the air spring 6 deflates. After the pneumatic clamping plate 3 reaches the maximum displacement, press the pneumatic clamping plate 3 release button to remove the air spring 6, and the test is completed.

[0038] This utility model has the characteristics of simple structure, low cost and convenient operation.

[0039] In one embodiment, a pneumatic switch is provided on the support rod 32 for controlling the air compressor. Specifically, a pneumatic switch is provided in the middle of the pneumatic clamp 3, and the end of the support rod 32 contacts the pneumatic switch. When the end cap of the air spring 6 touches the support rod 32, it can trigger the air compressor. When the air spring 6 is placed, the end cap touches the support rod 32, which can cause the clamp 31 to clamp the side edge of the end cap of the air spring 6, making it more convenient to use.

[0040] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. An air spring airtightness testing device, characterized in that, include: A water tank is used to immerse the air spring and test its airtightness. A clamping mechanism for fixing an air spring, which is immersed in a water tank, includes a pneumatic clamping plate, multiple clamping jaws, and a support rod. The clamping jaws are evenly arranged around the periphery of the pneumatic clamping plate to clamp the side edge of the end cap of the air spring. The clamping jaws are clamped or released by an external air compressor. The support rod is located in the middle of the pneumatic clamping plate and presses against the middle of the end cap of the air spring. The lifting mechanism provides a lifting stroke for the clamping mechanism, allowing the clamping mechanism to sink into or rise out of the water tank. It includes a longitudinally arranged slide rail, a slider, and a lifting cylinder. The slider is slidably sleeved on the slide rail, and the output end of the lifting cylinder is connected to the slider to push it up or down. The slider is connected to the pneumatic clamping plate.

2. The air tightness testing device for an air spring according to claim 1, characterized in that: The gripper is provided with a clamping part, which is a semi-circular groove structure used to clamp the side edge of the end cap of the air spring.

3. The air tightness testing device for an air spring according to claim 2, characterized in that: The pneumatic clamping plate is provided with a sliding cavity; the bottom of the jaw is provided with a guide slide, which is movably installed in the sliding cavity; a spring is provided in the sliding cavity, and the spring force causes the jaw to move outward; an air inlet is provided at the front end of the sliding cavity, and when inflated, it pushes the guide slide to clamp inward.

4. The air tightness testing device for an air spring according to claim 3, characterized in that: It also includes a base platform, on which the water tank and lifting mechanism are respectively mounted.

5. The air tightness testing device for an air spring according to claim 4, characterized in that: The base platform is also equipped with a control box for controlling the air compressor and lifting mechanism.

6. The air tightness testing device for an air spring according to claim 3, characterized in that: A clamping plate is provided between the slider and the pneumatic clamping plate, and the slider and the pneumatic clamping plate are connected by the clamping plate; the clamping plate is a frame structure with a downward-opening clearance space in the middle.

7. The air tightness testing device for an air spring according to claim 3, characterized in that: A pneumatic switch is installed on the support rod to control the air compressor. When the end cap of the air spring touches the support rod, it can trigger the air compressor.

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