A vacuum testing device

Abstract

The utility model discloses a vacuum testing device, including vacuum pump, a plurality of first vacuum test components, a plurality of second vacuum test components, panel and frame, first vacuum test component includes container type solenoid valve, non container type solenoid valve, digital pressure control appearance, vacuum suction nozzle, pilot lamp, control button and control cabinet, container type solenoid valve is linked together with vacuum pump, and non container type solenoid valve is linked together with container type solenoid valve, and digital pressure control appearance is connected with non container type solenoid valve, and vacuum suction nozzle is connected with digital pressure control appearance, and pilot lamp and control button are connected with control cabinet, second vacuum test component includes ball valve, vacuum gauge, quick -operation joint and start knob, and ball valve is linked together with vacuum pump, and vacuum gauge is linked together with ball valve, and quick -operation joint is linked together with vacuum gauge, the utility model has the advantages of being able to adapt to the different cavity interface size's executor and carries out vacuum test.

Description

Technical Field

[0001] This utility model relates to the field of vacuum testing technology, and in particular to a vacuum testing device. Background Technology

[0002] Valve actuators used in the marine industry require an IP68 rating, meaning they must be able to withstand underwater conditions up to 10 meters. To ensure this, a vacuum test is necessary to simulate the IP68 rating. However, some actuators have small cavity interfaces, making it difficult to remove air. This necessitates prolonged vacuuming. During testing of these actuators, the vacuum level may far exceed the standard during the initial evacuation process. Only after a certain evacuation time is reached and the vacuum level stabilizes to meet our acceptance test criteria.

[0003] Some actuators have large cavity interface spaces, making it easy to extract air from the cavity. When testing these actuators, it is sufficient to stop evacuating once the required vacuum level is reached. Existing vacuum testing equipment uses a single method for testing actuators, which is insufficient to adapt to vacuum testing of actuators with different cavity interface sizes, and improvements are needed. Utility Model Content

[0004] The purpose of this invention is to provide a device that can perform vacuum testing on actuators with different cavity interface sizes.

[0005] This utility model proposes a vacuum testing device, including a vacuum pump, several first vacuum testing components, several second vacuum testing components, a panel, and a frame. The panel is vertically mounted on the frame, and both the first and second vacuum testing components are mounted on the panel. The first vacuum testing components include a manifold solenoid valve, a non-manifold solenoid valve, a digital pressure controller, vacuum nozzles, indicator lights, control buttons, and a control cabinet. The manifold solenoid valve is connected to the vacuum pump, the non-manifold solenoid valve is connected to the manifold solenoid valve, the digital pressure controller is electrically connected to the non-manifold solenoid valve, the vacuum nozzles are connected to the digital pressure controller, and the indicator lights and control buttons are connected to the control cabinet. The second vacuum testing components include a ball valve, a vacuum gauge, a quick connector, and a start knob. The ball valve is connected to the vacuum pump, the vacuum gauge is connected to the ball valve, the quick connector is connected to the vacuum gauge, and the start knob is used to control the working state of the vacuum pump.

[0006] Preferably, a screw jack is provided on the frame, and a mounting plate is provided for lifting and sliding. The mounting plate is fixed to the screw of the screw jack and is driven to lift by the screw jack. Each of the non-collector-type solenoid valves is provided on the mounting plate.

[0007] Preferably, a pair of slide rails are vertically arranged on the frame, and a pair of sliders are fixedly arranged on the surface of the mounting plate. The surface of the sliders is formed with sliding grooves, and the slide rails are embedded in the sliding grooves.

[0008] Preferably, the panel is provided with two pairs of limiting members, one pair of the limiting members being located above the mounting plate and the other pair of the limiting members being located below the mounting plate, and the mounting plate moving up and down between the two pairs of limiting members.

[0009] Preferably, a base plate is horizontally arranged on the panel, and the base plate is fixed to the panel by bolts. Several of the manifold solenoid valves are detachably and fixedly arranged on the base plate.

[0010] Preferably, there are six sets of both the first vacuum test component and the second vacuum test component, and each second vacuum test component is evenly distributed along the length of the panel.

[0011] Preferably, the bottom corners of the frame are provided with feet, and the feet are threadedly connected to the frame for fixation.

[0012] Preferably, the frame is made of aluminum alloy profile.

[0013] As can be seen from the above description of this utility model, this utility model has the following beneficial effects: 1. This vacuum testing device is equipped with a first vacuum testing component and a second vacuum testing component. The first vacuum testing component is used to perform vacuum tests on actuators with large cavity interface spaces and easy extraction of air from the cavity, which has the advantages of high testing efficiency and simple testing operation. The second vacuum testing component can be used to perform vacuum tests on actuators with small cavity interface spaces and difficult extraction of air from the cavity. Therefore, this vacuum testing device can adapt to vacuum testing of different types of actuators and has strong versatility.

[0014] 2. A screw jack is installed on the frame, and a mounting plate is provided for lifting and sliding. The screw jack drives the mounting plate to rise and fall, and each non-collector-type solenoid valve with a vacuum nozzle is installed on the mounting plate. Thus, the height of the vacuum nozzle can be adjusted by the screw jack, so that the device can adapt to the testing requirements of different product models. Attached Figure Description

[0015] Figure 1 This is a front view of a vacuum testing device according to an embodiment; Figure 2 This is a rear view of a vacuum testing device according to an embodiment; Figure 3 This is an example. Figure 1 Sectional view at point AA; Figure 4This is a schematic diagram of the mounting plate and slider in the embodiment.

[0016] Reference numerals: 1. Vacuum pump; 2. First vacuum test assembly; 21. Cartridge-type solenoid valve; 22. Non-cartridge-type solenoid valve; 23. Vacuum nozzle; 24. Digital pressure controller; 25. Indicator light; 26. Control button; 3. Second vacuum test assembly; 31. Ball valve; 32. Vacuum gauge; 33. Quick connector; 34. Start knob; 4. Panel; 41. Base plate; 42. Limiting element; 5. Frame; 51. Foot cup; 52. Screw upgrade mechanism; 53. Mounting plate; 54. Slide rail; 55. Slider; 551. Sliding groove. Detailed Implementation

[0017] To make the technical problem to be solved, the technical solution and the beneficial effects of this utility model clearer and more understandable, the following description is provided in conjunction with the appendix. Figure 1-4 The present invention will be further described in detail below with reference to the embodiments. It should be understood that the specific embodiments described herein are only for explaining the present invention and are not intended to limit the present invention.

[0018] Reference Figure 1 and Figure 2 A vacuum testing device includes a vacuum pump 1, six sets of first vacuum testing components 2, six sets of second vacuum testing components 3, a panel 4, and a frame 5. The panel 4 is vertically mounted on the frame 5, and the first vacuum testing components 2 and second vacuum testing components 3 are evenly arranged along the length of the panel 4. The arrangement of multiple first vacuum testing components 2 and multiple second vacuum testing components 3 on the panel 4 allows the vacuum testing device to simultaneously perform vacuum tests on multiple actuators. The frame 5 is made of aluminum alloy profile, which has the advantages of being lightweight and having high structural strength, approaching that of high alloy steel. In addition, the frame 5 made of aluminum alloy profile also has a longer service life and lower maintenance costs. Foot cups 51 are provided at each corner of the bottom of the frame 5, and each foot cup 51 is fixed to the bottom of the frame 5 by a threaded connection. By adjusting the installation of each angle cup at the bottom of the frame 5, the frame 5 can maintain stability on different ground surfaces; in addition, it can prevent the bottom of the frame 5 from directly contacting the ground, thus preventing wear between the bottom of the frame 5 and the ground.

[0019] The first vacuum testing assembly 2 includes a manifold solenoid valve 21, a non-manifold solenoid valve 22, a vacuum nozzle 23, a digital pressure controller 24, an indicator light 25, a control button 26, and a control cabinet (not shown in the figure). The manifold solenoid valves 21 of the six sets of the first vacuum testing assembly 2 are connected in parallel and connected to the vacuum pump 1; each non-manifold solenoid valve 22 is connected in series with each manifold solenoid valve 21. The vacuum nozzle 23 is mounted on the digital pressure controller 24, and the digital pressure controller 24 is electrically connected to the non-manifold solenoid valves 22. The digital pressure controller 24 sends signals to the control cabinet, which controls the switching operation of the manifold solenoid valves 21 and the non-manifold solenoid valves 22. The control button 26 is connected to the control cabinet, allowing the switching of the digital pressure controller 24's operating state; the indicator light 25 is also connected to the control cabinet, and the control cabinet controls the color of the indicator light 25 based on the signals received from the pressure controller 24.

[0020] To accommodate the installation of the manifold solenoid valves 21, a base plate 41 is horizontally fixed on the panel 4. The base plate 41 is bolted to the panel 4, and each manifold solenoid valve 21 is fixedly installed on the base plate 41. When a vacuum test is required on an actuator with a large cavity interface space, the actuator is connected to the vacuum nozzle 23 of the first vacuum test assembly 2, and the control button 26 is pressed to start the automatic test. Subsequently, the control cabinet controls the manifold solenoid valves 21 and the non-manifold solenoid valves 22 to switch their operation. When the first vacuum test assembly 2 is used to perform a vacuum test on the actuator, when the vacuum value reaches the set value, the digital pressure controller 24 will send a signal to the control cabinet, and the control cabinet will control the manifold solenoid valves 21 and the non-manifold solenoid valves 22 to switch their operation. At this time, the first vacuum test assembly 2 will stop vacuuming. After the test time is up, the digital pressure controller 24 sends a signal to the control cabinet. The control cabinet then controls the indicator light 25 to illuminate. When the test is complete, a green light on indicator light 25 indicates that the actuator has passed the vacuum test; a red light indicates that the vacuum test has failed. If the test passes (i.e., the control cabinet does not receive a signal from the digital pressure controller 24), the control cabinet controls indicator light 25 to turn green and controls the non-portable solenoid valve 22 to switch off, breaking the vacuum in the product and allowing it to communicate with the atmosphere. If the test fails, the digital pressure controller 24 sends a signal to the control cabinet, which then controls indicator light 25 to turn red. The control cabinet does not control the non-portable solenoid valve 22 to switch off. In this case, the control button 26 needs to be pressed manually once. Control button 26 sends a signal to the control cabinet, which then controls the non-portable solenoid valve 22 to switch off, breaking the vacuum in the product and allowing it to communicate with the atmosphere. The first vacuum test assembly 2 offers high testing efficiency when automatically testing actuators that are prone to air extraction from their chambers.

[0021] Reference Figure 1and Figure 3 To enable the vacuum testing device to adapt to the testing requirements of different actuator models on the production line, a mounting plate 53 is installed on the frame 5, which slides and rises. All six sets of non-collector-type solenoid valves 22 of the first vacuum testing assembly 2 are mounted on the mounting plate 53, ensuring that each non-collector-type solenoid valve 22 is evenly distributed along the length of the mounting plate 53. A lead screw upgrading mechanism 52 is installed on the frame 5, with the lead screw of the upgrading mechanism 52 kept vertically upward. The mounting plate 53 is fixed to the top of the lead screw of the upgrading mechanism 52, allowing the mounting plate 53 to rise and fall as driven by the lead screw upgrading mechanism 52.

[0022] Reference Figure 3 and Figure 4 To ensure the stability of the mounting plate 53 during lifting, a pair of slide rails 54 are vertically fixed on the frame 5. Correspondingly, a pair of sliders 55 are fixed on the surface of the mounting plate 53, and sliding grooves 551 are formed on the surface of the sliders 55, so that the slide rails 54 are engaged in the sliding grooves 551 of the mounting plate 53. In addition, to prevent the mounting plate 53 from being over-lifted and damaging other parts on the panel 4, two pairs of limiting members 42 are fixed on the panel 4. One pair of limiting members 42 is located above the mounting plate 53, and the other pair of limiting members 42 is located below the mounting plate 53, so that the mounting plate 53 can only lift between the two pairs of limiting members 42.

[0023] The second vacuum test assembly 3 includes a ball valve 31, a vacuum gauge 32, a quick connector 33, and a start knob 34. The ball valve 31 of each second vacuum test assembly 3 is connected to the vacuum pump 1, the vacuum gauge 32 is connected to the ball valve 31, and the quick connector 33 is connected to the vacuum gauge 32. The start knob 34 controls the operating state of the vacuum pump 1. When a vacuum test is required on an actuator with a small cavity interface space, the actuator is connected to the quick connector 33 of the second vacuum test assembly 3. The start knob 34 is rotated to activate the vacuum pump 1, and the ball valve 31 is opened to begin evacuation. After the required evacuation time is reached, the ball valve 31 is closed. While monitoring the vacuum gauge 32, the ball valve 31 is opened again until the gauge pointer reaches the standard value, at which point the ball valve 31 is closed again. This process begins the vacuum test. After the required test time is reached, the vacuum gauge 32 is checked again. If the gauge pointer remains unchanged, the test is considered successful. The second vacuum test component 3, by observing the vacuum gauge 32, controlling the ball valve 31, and cooperating with the vacuum pump 1, has a better effect on extracting air from the actuator cavity, which is very effective for testing actuators that are difficult to extract air from the actuator cavity.

[0024] The specific implementation principle of this application embodiment is as follows: When a vacuum test is required on an actuator with a large cavity interface space, the actuator is connected to the vacuum nozzle 23 of the first vacuum test assembly 2, and the control button 26 is pressed to start the automatic test. Subsequently, the digital pressure controller 24 controls the cartridge solenoid valve 21 and the non-carrier solenoid valve 22 to perform switching operations. During the vacuum test of the actuator by the first vacuum test assembly 2, when the vacuum value reaches the set value, the digital pressure controller 24 will send a signal, at which point the first vacuum test assembly 2 will stop vacuuming. The test result can be obtained by observing the indicator light 25. After the test, when the indicator light 25 is green, it indicates that the actuator has passed the vacuum test; when the indicator light 25 is red, it indicates that the actuator has failed the vacuum test. The first vacuum test assembly 2 can automatically test actuators that are easy to extract air from their cavity, and has the advantage of high testing efficiency.

[0025] When vacuum testing is required for actuators with small cavity interface spaces, connect the actuator to the quick connector 33 of the second vacuum test assembly 3, rotate the start knob 34 to activate the vacuum pump 1, and open the ball valve 31 to begin vacuuming. After the required vacuuming time is reached, close the ball valve 31. While monitoring the vacuum gauge 32, simultaneously open the ball valve 31 again until the gauge pointer reaches the standard value, then close the ball valve 31 again. This process begins the vacuum test. After the required test time is reached, check the vacuum gauge 32 again. If the gauge pointer remains unchanged, the test is successful. The second vacuum test assembly 3 has a stronger ability to extract air from the actuator cavity. This vacuum test device is equipped with multiple first vacuum test assemblies 2 and multiple second vacuum test assemblies 3, making it more versatile and capable of testing actuators with different cavity interface sizes.

[0026] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution to other situations without modification, shall be protected by the present invention.

Claims

1. A vacuum testing device, characterized in that: It includes a vacuum pump, several first vacuum test components, several second vacuum test components, a panel, and a frame. The panel is vertically mounted on the frame, and both the first and second vacuum test components are mounted on the panel. The first vacuum testing assembly includes a manifold solenoid valve, a non-manifold solenoid valve, a digital pressure controller, a vacuum nozzle, indicator lights, control buttons, and a control cabinet. The manifold solenoid valve is connected to a vacuum pump, the non-manifold solenoid valve is connected to the manifold solenoid valve, the digital pressure controller is electrically connected to the non-manifold solenoid valve, the vacuum nozzle is connected to the digital pressure controller, and the indicator lights and control buttons are connected to the control cabinet. The second vacuum testing assembly includes a ball valve, a vacuum gauge, a quick connector, and a start knob. The ball valve is connected to a vacuum pump, the vacuum gauge is connected to the ball valve, the quick connector is connected to the vacuum gauge, and the start knob is used to control the working status of the vacuum pump.

2. The vacuum testing device according to claim 1, characterized in that: The frame is equipped with a screw jack, and a mounting plate is provided for lifting and sliding. The mounting plate is fixed to the screw of the screw jack and is driven to lift by the screw jack. Each of the non-collector-type solenoid valves is mounted on the mounting plate.

3. The vacuum testing device according to claim 2, characterized in that: A pair of slide rails are vertically arranged on the frame, and a pair of sliders are fixedly arranged on the surface of the mounting plate. The surface of the sliders is formed with sliding grooves, and the slide rails are embedded in the sliding grooves.

4. The vacuum testing device according to claim 2, characterized in that: The panel is provided with two pairs of limiting members, one pair of which is located above the mounting plate and the other pair is located below the mounting plate. The mounting plate moves up and down between the two pairs of limiting members.

5. A vacuum testing device according to claim 1, characterized in that: A base plate is horizontally arranged on the panel, and the base plate is fixed to the panel by bolts. Several of the manifold solenoid valves are detachably and fixedly arranged on the base plate.

6. The vacuum testing device according to claim 1, characterized in that: The first vacuum test component and the second vacuum test component are each provided in six groups, and each second vacuum test component is evenly distributed along the length direction of the panel.

7. A vacuum testing device according to claim 1, characterized in that: Each of the bottom corners of the frame is provided with a foot cup, which is fixed to the frame by a threaded connection.

8. A vacuum testing device according to claim 1, characterized in that: The frame is made of aluminum alloy profiles.

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